gstreamer/libs/gst/base/gstbasetransform.c

2922 lines
88 KiB
C
Raw Normal View History

gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2005 Wim Taymans <wim@fluendo.com>
* 2005 Andy Wingo <wingo@fluendo.com>
* 2005 Thomas Vander Stichele <thomas at apestaart dot org>
* 2008 Wim Taymans <wim.taymans@gmail.com>
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
*/
/**
* SECTION:gstbasetransform
* @title: GstBaseTransform
* @short_description: Base class for simple transform filters
* @see_also: #GstBaseSrc, #GstBaseSink
*
* This base class is for filter elements that process data. Elements
* that are suitable for implementation using #GstBaseTransform are ones
* where the size and caps of the output is known entirely from the input
* caps and buffer sizes. These include elements that directly transform
* one buffer into another, modify the contents of a buffer in-place, as
* well as elements that collate multiple input buffers into one output buffer,
* or that expand one input buffer into multiple output buffers. See below
* for more concrete use cases.
*
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
* It provides for:
*
* * one sinkpad and one srcpad
* * Possible formats on sink and source pad implemented
* with custom transform_caps function. By default uses
* same format on sink and source.
*
* * Handles state changes
* * Does flushing
* * Push mode
* * Pull mode if the sub-class transform can operate on arbitrary data
*
* # Use Cases
*
* ## Passthrough mode
*
* * Element has no interest in modifying the buffer. It may want to inspect it,
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
* in which case the element should have a transform_ip function. If there
* is no transform_ip function in passthrough mode, the buffer is pushed
* intact.
*
* * The #GstBaseTransformClass.passthrough_on_same_caps variable
* will automatically set/unset passthrough based on whether the
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
* element negotiates the same caps on both pads.
*
* * #GstBaseTransformClass.passthrough_on_same_caps on an element that
* doesn't implement a transform_caps function is useful for elements that
* only inspect data (such as level)
*
* * Example elements
*
* * Level
* * Videoscale, audioconvert, videoconvert, audioresample in certain modes.
*
* ## Modifications in-place - input buffer and output buffer are the same thing.
*
* * The element must implement a transform_ip function.
* * Output buffer size must <= input buffer size
* * If the always_in_place flag is set, non-writable buffers will be copied
* and passed to the transform_ip function, otherwise a new buffer will be
* created and the transform function called.
*
* * Incoming writable buffers will be passed to the transform_ip function
* immediately.
* * only implementing transform_ip and not transform implies always_in_place = %TRUE
*
* * Example elements:
* * Volume
* * Audioconvert in certain modes (signed/unsigned conversion)
* * videoconvert in certain modes (endianness swapping)
*
* ## Modifications only to the caps/metadata of a buffer
*
* * The element does not require writable data, but non-writable buffers
* should be subbuffered so that the meta-information can be replaced.
*
* * Elements wishing to operate in this mode should replace the
* prepare_output_buffer method to create subbuffers of the input buffer
* and set always_in_place to %TRUE
*
* * Example elements
* * Capsfilter when setting caps on outgoing buffers that have
* none.
* * identity when it is going to re-timestamp buffers by
* datarate.
*
* ## Normal mode
* * always_in_place flag is not set, or there is no transform_ip function
* * Element will receive an input buffer and output buffer to operate on.
* * Output buffer is allocated by calling the prepare_output_buffer function.
* * Example elements:
* * Videoscale, videoconvert, audioconvert when doing
* scaling/conversions
*
* ## Special output buffer allocations
* * Elements which need to do special allocation of their output buffers
* beyond allocating output buffers via the negotiated allocator or
* buffer pool should implement the prepare_output_buffer method.
*
* * Example elements:
* * efence
*
* # Sub-class settable flags on GstBaseTransform
*
* * passthrough
*
* * Implies that in the current configuration, the sub-class is not interested in modifying the buffers.
* * Elements which are always in passthrough mode whenever the same caps has been negotiated on both pads can set the class variable passthrough_on_same_caps to have this behaviour automatically.
*
* * always_in_place
* * Determines whether a non-writable buffer will be copied before passing
* to the transform_ip function.
*
* * Implied %TRUE if no transform function is implemented.
* * Implied %FALSE if ONLY transform function is implemented.
*/
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
#include <stdlib.h>
#include <string.h>
#include "../../../gst/gst_private.h"
#include "../../../gst/gst-i18n-lib.h"
#include "../../../gst/glib-compat-private.h"
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
#include "gstbasetransform.h"
GST_DEBUG_CATEGORY_STATIC (gst_base_transform_debug);
#define GST_CAT_DEFAULT gst_base_transform_debug
/* BaseTransform signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
#define DEFAULT_PROP_QOS FALSE
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
enum
{
PROP_0,
PROP_QOS
};
struct _GstBaseTransformPrivate
{
2012-03-16 21:51:14 +00:00
/* Set by sub-class */
gboolean passthrough;
gboolean always_in_place;
GstCaps *cache_caps1;
gsize cache_caps1_size;
GstCaps *cache_caps2;
gsize cache_caps2_size;
gboolean have_same_caps;
gboolean negotiated;
/* QoS *//* with LOCK */
gboolean qos_enabled;
gdouble proportion;
GstClockTime earliest_time;
/* previous buffer had a discont */
gboolean discont;
GstPadMode pad_mode;
gboolean gap_aware;
gboolean prefer_passthrough;
/* QoS stats */
guint64 processed;
guint64 dropped;
GstClockTime position_out;
2011-05-20 16:56:37 +00:00
GstBufferPool *pool;
gboolean pool_active;
GstAllocator *allocator;
GstAllocationParams params;
GstQuery *query;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
};
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
static GstElementClass *parent_class = NULL;
static gint private_offset = 0;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
static void gst_base_transform_class_init (GstBaseTransformClass * klass);
static void gst_base_transform_init (GstBaseTransform * trans,
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
GstBaseTransformClass * klass);
static GstFlowReturn default_submit_input_buffer (GstBaseTransform * trans,
gboolean is_discont, GstBuffer * input);
static GstFlowReturn default_generate_output (GstBaseTransform * trans,
GstBuffer ** outbuf);
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
/* we can't use G_DEFINE_ABSTRACT_TYPE because we need the klass in the _init
* method to get to the padtemplates */
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
GType
gst_base_transform_get_type (void)
{
static gsize base_transform_type = 0;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
2009-04-04 08:59:39 +00:00
if (g_once_init_enter (&base_transform_type)) {
GType _type;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
static const GTypeInfo base_transform_info = {
sizeof (GstBaseTransformClass),
Don't use base_init where not absolutely necessary. For example it's not necessary anymore for adding pad templates o... Original commit message from CVS: * gst/gstbin.c: (gst_bin_get_type), (gst_bin_class_init): * gst/gstpipeline.c: (gst_pipeline_get_type), (gst_pipeline_class_init): * libs/gst/base/gstbasesink.c: (gst_base_sink_get_type), (gst_base_sink_class_init): * libs/gst/base/gstbasesrc.c: (gst_base_src_get_type), (gst_base_src_class_init): * libs/gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_class_init): * libs/gst/base/gstcollectpads.c: (gst_collect_pads_base_init), (gst_collect_pads_class_init): * libs/gst/base/gstdataqueue.c: (gst_data_queue_get_type): * libs/gst/net/gstnettimeprovider.c: (gst_net_time_provider_base_init), (gst_net_time_provider_class_init): * plugins/elements/gstcapsfilter.c: (gst_capsfilter_base_init), (gst_capsfilter_class_init): * plugins/elements/gstfakesink.c: (gst_fake_sink_base_init), (gst_fake_sink_class_init): * plugins/elements/gstfakesrc.c: (gst_fake_src_base_init), (gst_fake_src_class_init): * plugins/elements/gstfdsink.c: (gst_fd_sink_base_init), (gst_fd_sink_class_init): * plugins/elements/gstfdsrc.c: (gst_fd_src_base_init), (gst_fd_src_class_init): * plugins/elements/gstfilesink.c: (gst_file_sink_base_init), (gst_file_sink_class_init): * plugins/elements/gstfilesrc.c: (gst_file_src_base_init), (gst_file_src_class_init): * plugins/elements/gstidentity.c: (gst_identity_base_init), (gst_identity_class_init): * plugins/elements/gstmultiqueue.c: (gst_multi_queue_base_init), (gst_multi_queue_class_init): * plugins/elements/gstqueue.c: (gst_queue_base_init), (gst_queue_class_init): * plugins/elements/gsttee.c: (gst_tee_base_init), (gst_tee_class_init): * plugins/elements/gsttypefindelement.c: (gst_type_find_element_base_init), (gst_type_find_element_class_init): Don't use base_init where not absolutely necessary. For example it's not necessary anymore for adding pad templates or setting element details. Leave empty base_init functions in several places as GST_BOILERPLATE still defines and uses them.
2008-02-03 12:04:37 +00:00
NULL,
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
NULL,
(GClassInitFunc) gst_base_transform_class_init,
NULL,
NULL,
sizeof (GstBaseTransform),
0,
(GInstanceInitFunc) gst_base_transform_init,
};
2009-04-04 08:59:39 +00:00
_type = g_type_register_static (GST_TYPE_ELEMENT,
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
"GstBaseTransform", &base_transform_info, G_TYPE_FLAG_ABSTRACT);
private_offset =
g_type_add_instance_private (_type, sizeof (GstBaseTransformPrivate));
2009-04-04 08:59:39 +00:00
g_once_init_leave (&base_transform_type, _type);
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
}
return base_transform_type;
}
static inline GstBaseTransformPrivate *
gst_base_transform_get_instance_private (GstBaseTransform * self)
{
return (G_STRUCT_MEMBER_P (self, private_offset));
}
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
static void gst_base_transform_finalize (GObject * object);
static void gst_base_transform_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_base_transform_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static gboolean gst_base_transform_src_activate_mode (GstPad * pad,
GstObject * parent, GstPadMode mode, gboolean active);
static gboolean gst_base_transform_sink_activate_mode (GstPad * pad,
GstObject * parent, GstPadMode mode, gboolean active);
static gboolean gst_base_transform_activate (GstBaseTransform * trans,
gboolean active);
static gboolean gst_base_transform_get_unit_size (GstBaseTransform * trans,
GstCaps * caps, gsize * size);
static gboolean gst_base_transform_src_event (GstPad * pad, GstObject * parent,
GstEvent * event);
static gboolean gst_base_transform_src_eventfunc (GstBaseTransform * trans,
GstEvent * event);
static gboolean gst_base_transform_sink_event (GstPad * pad, GstObject * parent,
GstEvent * event);
static gboolean gst_base_transform_sink_eventfunc (GstBaseTransform * trans,
GstEvent * event);
static GstFlowReturn gst_base_transform_getrange (GstPad * pad,
GstObject * parent, guint64 offset, guint length, GstBuffer ** buffer);
static GstFlowReturn gst_base_transform_chain (GstPad * pad, GstObject * parent,
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
GstBuffer * buffer);
static GstCaps *gst_base_transform_default_transform_caps (GstBaseTransform *
trans, GstPadDirection direction, GstCaps * caps, GstCaps * filter);
static GstCaps *gst_base_transform_default_fixate_caps (GstBaseTransform *
trans, GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
static GstCaps *gst_base_transform_query_caps (GstBaseTransform * trans,
GstPad * pad, GstCaps * filter);
static gboolean gst_base_transform_acceptcaps_default (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps);
static gboolean gst_base_transform_setcaps (GstBaseTransform * trans,
GstPad * pad, GstCaps * caps);
static gboolean gst_base_transform_default_decide_allocation (GstBaseTransform
* trans, GstQuery * query);
static gboolean gst_base_transform_default_propose_allocation (GstBaseTransform
* trans, GstQuery * decide_query, GstQuery * query);
2011-11-16 16:22:56 +00:00
static gboolean gst_base_transform_query (GstPad * pad, GstObject * parent,
GstQuery * query);
2011-08-25 10:02:16 +00:00
static gboolean gst_base_transform_default_query (GstBaseTransform * trans,
GstPadDirection direction, GstQuery * query);
static gboolean gst_base_transform_default_transform_size (GstBaseTransform *
trans, GstPadDirection direction, GstCaps * caps, gsize size,
GstCaps * othercaps, gsize * othersize);
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
static GstFlowReturn default_prepare_output_buffer (GstBaseTransform * trans,
GstBuffer * inbuf, GstBuffer ** outbuf);
static gboolean default_copy_metadata (GstBaseTransform * trans,
GstBuffer * inbuf, GstBuffer * outbuf);
static gboolean
gst_base_transform_default_transform_meta (GstBaseTransform * trans,
GstBuffer * outbuf, GstMeta * meta, GstBuffer * inbuf);
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
/* static guint gst_base_transform_signals[LAST_SIGNAL] = { 0 }; */
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
static void
gst_base_transform_finalize (GObject * object)
{
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_base_transform_class_init (GstBaseTransformClass * klass)
{
GObjectClass *gobject_class;
gobject_class = G_OBJECT_CLASS (klass);
if (private_offset != 0)
g_type_class_adjust_private_offset (klass, &private_offset);
Don't use base_init where not absolutely necessary. For example it's not necessary anymore for adding pad templates o... Original commit message from CVS: * gst/gstbin.c: (gst_bin_get_type), (gst_bin_class_init): * gst/gstpipeline.c: (gst_pipeline_get_type), (gst_pipeline_class_init): * libs/gst/base/gstbasesink.c: (gst_base_sink_get_type), (gst_base_sink_class_init): * libs/gst/base/gstbasesrc.c: (gst_base_src_get_type), (gst_base_src_class_init): * libs/gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_class_init): * libs/gst/base/gstcollectpads.c: (gst_collect_pads_base_init), (gst_collect_pads_class_init): * libs/gst/base/gstdataqueue.c: (gst_data_queue_get_type): * libs/gst/net/gstnettimeprovider.c: (gst_net_time_provider_base_init), (gst_net_time_provider_class_init): * plugins/elements/gstcapsfilter.c: (gst_capsfilter_base_init), (gst_capsfilter_class_init): * plugins/elements/gstfakesink.c: (gst_fake_sink_base_init), (gst_fake_sink_class_init): * plugins/elements/gstfakesrc.c: (gst_fake_src_base_init), (gst_fake_src_class_init): * plugins/elements/gstfdsink.c: (gst_fd_sink_base_init), (gst_fd_sink_class_init): * plugins/elements/gstfdsrc.c: (gst_fd_src_base_init), (gst_fd_src_class_init): * plugins/elements/gstfilesink.c: (gst_file_sink_base_init), (gst_file_sink_class_init): * plugins/elements/gstfilesrc.c: (gst_file_src_base_init), (gst_file_src_class_init): * plugins/elements/gstidentity.c: (gst_identity_base_init), (gst_identity_class_init): * plugins/elements/gstmultiqueue.c: (gst_multi_queue_base_init), (gst_multi_queue_class_init): * plugins/elements/gstqueue.c: (gst_queue_base_init), (gst_queue_class_init): * plugins/elements/gsttee.c: (gst_tee_base_init), (gst_tee_class_init): * plugins/elements/gsttypefindelement.c: (gst_type_find_element_base_init), (gst_type_find_element_class_init): Don't use base_init where not absolutely necessary. For example it's not necessary anymore for adding pad templates or setting element details. Leave empty base_init functions in several places as GST_BOILERPLATE still defines and uses them.
2008-02-03 12:04:37 +00:00
GST_DEBUG_CATEGORY_INIT (gst_base_transform_debug, "basetransform", 0,
"basetransform element");
GST_DEBUG ("gst_base_transform_class_init");
parent_class = g_type_class_peek_parent (klass);
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
gobject_class->set_property = gst_base_transform_set_property;
gobject_class->get_property = gst_base_transform_get_property;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
g_object_class_install_property (gobject_class, PROP_QOS,
g_param_spec_boolean ("qos", "QoS", "Handle Quality-of-Service events",
Define G_PARAM_STATIC_STRINGS if it's undefined (GLib < 2.13.0) and use it everywhere for GParamSpecs that use static... Original commit message from CVS: * docs/pwg/advanced-dparams.xml: * docs/pwg/building-props.xml: * docs/pwg/other-source.xml: * gst/glib-compat.h: * gst/gstbin.c: (gst_bin_class_init): * gst/gstclock.c: (gst_clock_class_init): * gst/gstindex.c: (gst_index_class_init): * gst/gstobject.c: (gst_object_class_init): * gst/gstpad.c: (gst_pad_class_init): * gst/gstpipeline.c: (gst_pipeline_class_init): * libs/gst/base/gstbasesink.c: (gst_base_sink_class_init): * libs/gst/base/gstbasesrc.c: (gst_base_src_class_init): * libs/gst/base/gstbasetransform.c: (gst_base_transform_class_init): * libs/gst/base/gstdataqueue.c: (gst_data_queue_class_init): * libs/gst/check/gstcheck.c: (_gst_check_fault_handler_restore), (_gst_check_fault_handler_sighandler), (_gst_check_fault_handler_setup), (gst_check_init): * libs/gst/controller/gstcontroller.c: (_gst_controller_class_init): * libs/gst/controller/gstlfocontrolsource.c: (gst_lfo_control_source_class_init): * libs/gst/net/gstnetclientclock.c: (gst_net_client_clock_class_init): * libs/gst/net/gstnettimeprovider.c: (gst_net_time_provider_class_init): * plugins/elements/gstcapsfilter.c: (gst_capsfilter_class_init): * plugins/elements/gstfakesink.c: (gst_fake_sink_class_init): * plugins/elements/gstfakesrc.c: (gst_fake_src_class_init): * plugins/elements/gstfdsink.c: (gst_fd_sink_class_init): * plugins/elements/gstfdsrc.c: (gst_fd_src_class_init): * plugins/elements/gstfilesink.c: (gst_file_sink_class_init): * plugins/elements/gstfilesrc.c: (gst_file_src_class_init): * plugins/elements/gstidentity.c: (gst_identity_class_init): * plugins/elements/gstmultiqueue.c: (gst_multi_queue_class_init): * plugins/elements/gstqueue.c: (gst_queue_class_init): * plugins/elements/gsttee.c: (gst_tee_class_init): * plugins/elements/gsttypefindelement.c: (gst_type_find_element_class_init): * plugins/indexers/gstfileindex.c: (gst_file_index_class_init): Define G_PARAM_STATIC_STRINGS if it's undefined (GLib < 2.13.0) and use it everywhere for GParamSpecs that use static strings (i.e. all). This gives us less memory usage, fewer allocations and thus less memory defragmentation. Fixes bug #523806.
2008-03-22 14:56:17 +00:00
DEFAULT_PROP_QOS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gobject_class->finalize = gst_base_transform_finalize;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
klass->passthrough_on_same_caps = FALSE;
klass->transform_ip_on_passthrough = TRUE;
klass->transform_caps =
GST_DEBUG_FUNCPTR (gst_base_transform_default_transform_caps);
klass->fixate_caps =
GST_DEBUG_FUNCPTR (gst_base_transform_default_fixate_caps);
klass->accept_caps =
GST_DEBUG_FUNCPTR (gst_base_transform_acceptcaps_default);
klass->query = GST_DEBUG_FUNCPTR (gst_base_transform_default_query);
klass->decide_allocation =
GST_DEBUG_FUNCPTR (gst_base_transform_default_decide_allocation);
klass->propose_allocation =
GST_DEBUG_FUNCPTR (gst_base_transform_default_propose_allocation);
klass->transform_size =
GST_DEBUG_FUNCPTR (gst_base_transform_default_transform_size);
klass->transform_meta =
GST_DEBUG_FUNCPTR (gst_base_transform_default_transform_meta);
klass->sink_event = GST_DEBUG_FUNCPTR (gst_base_transform_sink_eventfunc);
klass->src_event = GST_DEBUG_FUNCPTR (gst_base_transform_src_eventfunc);
klass->prepare_output_buffer =
GST_DEBUG_FUNCPTR (default_prepare_output_buffer);
klass->copy_metadata = GST_DEBUG_FUNCPTR (default_copy_metadata);
klass->submit_input_buffer = GST_DEBUG_FUNCPTR (default_submit_input_buffer);
klass->generate_output = GST_DEBUG_FUNCPTR (default_generate_output);
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
}
static void
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
gst_base_transform_init (GstBaseTransform * trans,
GstBaseTransformClass * bclass)
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
{
GstPadTemplate *pad_template;
2012-03-16 21:51:14 +00:00
GstBaseTransformPrivate *priv;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
GST_DEBUG ("gst_base_transform_init");
priv = trans->priv = gst_base_transform_get_instance_private (trans);
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
pad_template =
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
gst_element_class_get_pad_template (GST_ELEMENT_CLASS (bclass), "sink");
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
g_return_if_fail (pad_template != NULL);
trans->sinkpad = gst_pad_new_from_template (pad_template, "sink");
gst_pad_set_event_function (trans->sinkpad,
GST_DEBUG_FUNCPTR (gst_base_transform_sink_event));
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
gst_pad_set_chain_function (trans->sinkpad,
GST_DEBUG_FUNCPTR (gst_base_transform_chain));
gst_pad_set_activatemode_function (trans->sinkpad,
GST_DEBUG_FUNCPTR (gst_base_transform_sink_activate_mode));
gst_pad_set_query_function (trans->sinkpad,
GST_DEBUG_FUNCPTR (gst_base_transform_query));
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
gst_element_add_pad (GST_ELEMENT (trans), trans->sinkpad);
pad_template =
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
gst_element_class_get_pad_template (GST_ELEMENT_CLASS (bclass), "src");
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
g_return_if_fail (pad_template != NULL);
trans->srcpad = gst_pad_new_from_template (pad_template, "src");
gst_pad_set_event_function (trans->srcpad,
GST_DEBUG_FUNCPTR (gst_base_transform_src_event));
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
gst_pad_set_getrange_function (trans->srcpad,
GST_DEBUG_FUNCPTR (gst_base_transform_getrange));
gst_pad_set_activatemode_function (trans->srcpad,
GST_DEBUG_FUNCPTR (gst_base_transform_src_activate_mode));
gst_pad_set_query_function (trans->srcpad,
GST_DEBUG_FUNCPTR (gst_base_transform_query));
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
gst_element_add_pad (GST_ELEMENT (trans), trans->srcpad);
2012-03-16 21:51:14 +00:00
priv->qos_enabled = DEFAULT_PROP_QOS;
priv->cache_caps1 = NULL;
priv->cache_caps2 = NULL;
priv->pad_mode = GST_PAD_MODE_NONE;
priv->gap_aware = FALSE;
priv->prefer_passthrough = TRUE;
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
2012-03-16 21:51:14 +00:00
priv->passthrough = FALSE;
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
if (bclass->transform == NULL) {
/* If no transform function, always_in_place is TRUE */
GST_DEBUG_OBJECT (trans, "setting in_place TRUE");
2012-03-16 21:51:14 +00:00
priv->always_in_place = TRUE;
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
if (bclass->transform_ip == NULL) {
GST_DEBUG_OBJECT (trans, "setting passthrough TRUE");
2012-03-16 21:51:14 +00:00
priv->passthrough = TRUE;
}
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
}
2012-03-16 21:51:14 +00:00
priv->processed = 0;
priv->dropped = 0;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
}
static GstCaps *
gst_base_transform_default_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *ret;
GST_DEBUG_OBJECT (trans, "identity from: %" GST_PTR_FORMAT, caps);
/* no transform function, use the identity transform */
if (filter) {
ret = gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
} else {
ret = gst_caps_ref (caps);
}
return ret;
}
/* given @caps on the src or sink pad (given by @direction)
* calculate the possible caps on the other pad.
*
* Returns new caps, unref after usage.
*/
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
static GstCaps *
gst_base_transform_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
{
GstCaps *ret = NULL;
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
GstBaseTransformClass *klass;
if (caps == NULL)
return NULL;
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
klass = GST_BASE_TRANSFORM_GET_CLASS (trans);
/* if there is a custom transform function, use this */
if (klass->transform_caps) {
GST_DEBUG_OBJECT (trans, "transform caps (direction = %d)", direction);
GST_LOG_OBJECT (trans, "from: %" GST_PTR_FORMAT, caps);
ret = klass->transform_caps (trans, direction, caps, filter);
GST_LOG_OBJECT (trans, " to: %" GST_PTR_FORMAT, ret);
#ifdef GST_ENABLE_EXTRA_CHECKS
if (filter) {
if (!gst_caps_is_subset (ret, filter)) {
GstCaps *intersection;
GST_ERROR_OBJECT (trans,
"transform_caps returned caps %" GST_PTR_FORMAT
" which are not a real subset of the filter caps %"
GST_PTR_FORMAT, ret, filter);
g_warning ("%s: transform_caps returned caps which are not a real "
"subset of the filter caps", GST_ELEMENT_NAME (trans));
intersection =
gst_caps_intersect_full (filter, ret, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (ret);
ret = intersection;
}
}
#endif
}
GST_DEBUG_OBJECT (trans, "to: %" GST_PTR_FORMAT, ret);
return ret;
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
}
static gboolean
gst_base_transform_default_transform_meta (GstBaseTransform * trans,
GstBuffer * outbuf, GstMeta * meta, GstBuffer * inbuf)
{
const GstMetaInfo *info = meta->info;
const gchar *const *tags;
tags = gst_meta_api_type_get_tags (info->api);
if (!tags)
return TRUE;
return FALSE;
}
static gboolean
gst_base_transform_default_transform_size (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, gsize size,
GstCaps * othercaps, gsize * othersize)
{
gsize inunitsize, outunitsize, units;
GstBaseTransformClass *klass;
klass = GST_BASE_TRANSFORM_GET_CLASS (trans);
if (klass->get_unit_size == NULL) {
/* if there is no transform_size and no unit_size, it means the
* element does not modify the size of a buffer */
*othersize = size;
} else {
/* there is no transform_size function, we have to use the unit_size
* functions. This method assumes there is a fixed unit_size associated with
* each caps. We provide the same amount of units on both sides. */
if (!gst_base_transform_get_unit_size (trans, caps, &inunitsize))
goto no_in_size;
GST_DEBUG_OBJECT (trans,
"input size %" G_GSIZE_FORMAT ", input unit size %" G_GSIZE_FORMAT,
size, inunitsize);
/* input size must be a multiple of the unit_size of the input caps */
if (inunitsize == 0 || (size % inunitsize != 0))
goto no_multiple;
/* get the amount of units */
units = size / inunitsize;
/* now get the unit size of the output */
if (!gst_base_transform_get_unit_size (trans, othercaps, &outunitsize))
goto no_out_size;
/* the output size is the unit_size times the amount of units on the
* input */
*othersize = units * outunitsize;
GST_DEBUG_OBJECT (trans, "transformed size to %" G_GSIZE_FORMAT,
*othersize);
}
return TRUE;
/* ERRORS */
no_in_size:
{
GST_DEBUG_OBJECT (trans, "could not get in_size");
g_warning ("%s: could not get in_size", GST_ELEMENT_NAME (trans));
return FALSE;
}
no_multiple:
{
GST_DEBUG_OBJECT (trans, "Size %" G_GSIZE_FORMAT " is not a multiple of"
"unit size %" G_GSIZE_FORMAT, size, inunitsize);
g_warning ("%s: size %" G_GSIZE_FORMAT " is not a multiple of unit size %"
G_GSIZE_FORMAT, GST_ELEMENT_NAME (trans), size, inunitsize);
return FALSE;
}
no_out_size:
{
GST_DEBUG_OBJECT (trans, "could not get out_size");
g_warning ("%s: could not get out_size", GST_ELEMENT_NAME (trans));
return FALSE;
}
}
/* transform a buffer of @size with @caps on the pad with @direction to
* the size of a buffer with @othercaps and store the result in @othersize
*
* We have two ways of doing this:
* 1) use a custom transform size function, this is for complicated custom
* cases with no fixed unit_size.
* 2) use the unit_size functions where there is a relationship between the
* caps and the size of a buffer.
*/
static gboolean
gst_base_transform_transform_size (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps,
gsize size, GstCaps * othercaps, gsize * othersize)
{
GstBaseTransformClass *klass;
gboolean ret = FALSE;
klass = GST_BASE_TRANSFORM_GET_CLASS (trans);
GST_DEBUG_OBJECT (trans,
"asked to transform size %" G_GSIZE_FORMAT " for caps %"
GST_PTR_FORMAT " to size for caps %" GST_PTR_FORMAT " in direction %s",
size, caps, othercaps, direction == GST_PAD_SRC ? "SRC" : "SINK");
if (klass->transform_size) {
/* if there is a custom transform function, use this */
ret = klass->transform_size (trans, direction, caps, size, othercaps,
othersize);
}
return ret;
}
2009-01-25 16:58:52 +00:00
/* get the caps that can be handled by @pad. We perform:
*
* - take the caps of peer of otherpad,
* - filter against the padtemplate of otherpad,
* - calculate all transforms of remaining caps
* - filter against template of @pad
*
* If there is no peer, we simply return the caps of the padtemplate of pad.
*/
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
static GstCaps *
gst_base_transform_query_caps (GstBaseTransform * trans, GstPad * pad,
GstCaps * filter)
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
{
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
GstPad *otherpad;
GstCaps *peercaps = NULL, *caps, *temp, *peerfilter = NULL;
GstCaps *templ, *otempl;
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
otherpad = (pad == trans->srcpad) ? trans->sinkpad : trans->srcpad;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
templ = gst_pad_get_pad_template_caps (pad);
otempl = gst_pad_get_pad_template_caps (otherpad);
2019-06-20 12:04:55 +00:00
/* first prepare the filter to be sent onwards. We need to filter and
2012-10-04 08:01:19 +00:00
* transform it to valid caps for the otherpad. */
if (filter) {
GST_DEBUG_OBJECT (pad, "filter caps %" GST_PTR_FORMAT, filter);
2012-10-04 08:01:19 +00:00
/* filtered against our padtemplate of this pad */
GST_DEBUG_OBJECT (pad, "our template %" GST_PTR_FORMAT, templ);
temp = gst_caps_intersect_full (filter, templ, GST_CAPS_INTERSECT_FIRST);
GST_DEBUG_OBJECT (pad, "intersected %" GST_PTR_FORMAT, temp);
/* then see what we can transform this to */
peerfilter = gst_base_transform_transform_caps (trans,
GST_PAD_DIRECTION (pad), temp, NULL);
GST_DEBUG_OBJECT (pad, "transformed %" GST_PTR_FORMAT, peerfilter);
gst_caps_unref (temp);
if (peerfilter) {
if (!gst_caps_is_empty (peerfilter)) {
/* and filter against the template of the other pad */
GST_DEBUG_OBJECT (pad, "our template %" GST_PTR_FORMAT, otempl);
/* We keep the caps sorted like the returned caps */
temp =
gst_caps_intersect_full (peerfilter, otempl,
GST_CAPS_INTERSECT_FIRST);
GST_DEBUG_OBJECT (pad, "intersected %" GST_PTR_FORMAT, temp);
gst_caps_unref (peerfilter);
peerfilter = temp;
}
/* If we filter out everything, bail out */
if (peerfilter && gst_caps_is_empty (peerfilter)) {
GST_DEBUG_OBJECT (pad, "peer filter caps are empty");
caps = peerfilter;
peerfilter = NULL;
goto done;
}
}
}
GST_DEBUG_OBJECT (pad, "peer filter caps %" GST_PTR_FORMAT, peerfilter);
2012-10-04 08:01:19 +00:00
/* query the peer with the transformed filter */
2011-11-15 16:11:46 +00:00
peercaps = gst_pad_peer_query_caps (otherpad, peerfilter);
if (peerfilter)
gst_caps_unref (peerfilter);
if (peercaps) {
GST_DEBUG_OBJECT (pad, "peer caps %" GST_PTR_FORMAT, peercaps);
/* filtered against our padtemplate on the other side */
GST_DEBUG_OBJECT (pad, "our template %" GST_PTR_FORMAT, otempl);
temp = gst_caps_intersect_full (peercaps, otempl, GST_CAPS_INTERSECT_FIRST);
GST_DEBUG_OBJECT (pad, "intersected %" GST_PTR_FORMAT, temp);
} else {
temp = gst_caps_ref (otempl);
}
/* then see what we can transform this to */
caps = gst_base_transform_transform_caps (trans,
GST_PAD_DIRECTION (otherpad), temp, filter);
GST_DEBUG_OBJECT (pad, "transformed %" GST_PTR_FORMAT, caps);
gst_caps_unref (temp);
if (caps == NULL || gst_caps_is_empty (caps))
goto done;
if (peercaps) {
/* and filter against the template of this pad */
GST_DEBUG_OBJECT (pad, "our template %" GST_PTR_FORMAT, templ);
/* We keep the caps sorted like the returned caps */
temp = gst_caps_intersect_full (caps, templ, GST_CAPS_INTERSECT_FIRST);
GST_DEBUG_OBJECT (pad, "intersected %" GST_PTR_FORMAT, temp);
gst_caps_unref (caps);
caps = temp;
if (trans->priv->prefer_passthrough) {
/* Now try if we can put the untransformed downstream caps first */
temp = gst_caps_intersect_full (peercaps, caps, GST_CAPS_INTERSECT_FIRST);
if (!gst_caps_is_empty (temp)) {
caps = gst_caps_merge (temp, caps);
} else {
gst_caps_unref (temp);
}
}
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
} else {
gst_caps_unref (caps);
/* no peer or the peer can do anything, our padtemplate is enough then */
if (filter) {
caps = gst_caps_intersect_full (filter, templ, GST_CAPS_INTERSECT_FIRST);
} else {
caps = gst_caps_ref (templ);
}
}
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
done:
GST_DEBUG_OBJECT (trans, "returning %" GST_PTR_FORMAT, caps);
if (peercaps)
gst_caps_unref (peercaps);
gst_caps_unref (templ);
gst_caps_unref (otempl);
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
return caps;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
}
/* takes ownership of the pool, allocator and query */
static gboolean
gst_base_transform_set_allocation (GstBaseTransform * trans,
GstBufferPool * pool, GstAllocator * allocator,
const GstAllocationParams * params, GstQuery * query)
{
GstAllocator *oldalloc;
GstBufferPool *oldpool;
GstQuery *oldquery;
GstBaseTransformPrivate *priv = trans->priv;
GST_OBJECT_LOCK (trans);
oldpool = priv->pool;
priv->pool = pool;
priv->pool_active = FALSE;
oldalloc = priv->allocator;
priv->allocator = allocator;
oldquery = priv->query;
priv->query = query;
if (params)
priv->params = *params;
else
gst_allocation_params_init (&priv->params);
GST_OBJECT_UNLOCK (trans);
if (oldpool) {
2011-07-22 17:11:56 +00:00
GST_DEBUG_OBJECT (trans, "deactivating old pool %p", oldpool);
gst_buffer_pool_set_active (oldpool, FALSE);
gst_object_unref (oldpool);
}
if (oldalloc) {
gst_object_unref (oldalloc);
}
if (oldquery) {
gst_query_unref (oldquery);
}
return TRUE;
}
static gboolean
gst_base_transform_default_decide_allocation (GstBaseTransform * trans,
GstQuery * query)
{
guint i, n_metas;
GstBaseTransformClass *klass;
GstCaps *outcaps;
GstBufferPool *pool;
guint size, min, max;
GstAllocator *allocator;
GstAllocationParams params;
GstStructure *config;
gboolean update_allocator;
klass = GST_BASE_TRANSFORM_GET_CLASS (trans);
n_metas = gst_query_get_n_allocation_metas (query);
for (i = 0; i < n_metas; i++) {
GType api;
const GstStructure *params;
gboolean remove;
api = gst_query_parse_nth_allocation_meta (query, i, &params);
/* by default we remove all metadata, subclasses should implement a
* filter_meta function */
2014-01-31 08:14:41 +00:00
if (gst_meta_api_type_has_tag (api, _gst_meta_tag_memory)) {
/* remove all memory dependent metadata because we are going to have to
* allocate different memory for input and output. */
GST_LOG_OBJECT (trans, "removing memory specific metadata %s",
g_type_name (api));
remove = TRUE;
} else if (G_LIKELY (klass->filter_meta)) {
/* remove if the subclass said so */
remove = !klass->filter_meta (trans, query, api, params);
GST_LOG_OBJECT (trans, "filter_meta for api %s returned: %s",
g_type_name (api), (remove ? "remove" : "keep"));
} else {
GST_LOG_OBJECT (trans, "removing metadata %s", g_type_name (api));
remove = TRUE;
}
if (remove) {
gst_query_remove_nth_allocation_meta (query, i);
i--;
2012-03-01 16:38:54 +00:00
n_metas--;
}
}
gst_query_parse_allocation (query, &outcaps, NULL);
/* we got configuration from our peer or the decide_allocation method,
* parse them */
if (gst_query_get_n_allocation_params (query) > 0) {
/* try the allocator */
gst_query_parse_nth_allocation_param (query, 0, &allocator, &params);
update_allocator = TRUE;
} else {
allocator = NULL;
gst_allocation_params_init (&params);
update_allocator = FALSE;
}
if (gst_query_get_n_allocation_pools (query) > 0) {
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
if (pool == NULL) {
/* no pool, we can make our own */
GST_DEBUG_OBJECT (trans, "no pool, making new pool");
pool = gst_buffer_pool_new ();
}
} else {
pool = NULL;
size = min = max = 0;
}
/* now configure */
if (pool) {
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, outcaps, size, min, max);
gst_buffer_pool_config_set_allocator (config, allocator, &params);
/* buffer pool may have to do some changes */
if (!gst_buffer_pool_set_config (pool, config)) {
config = gst_buffer_pool_get_config (pool);
/* If change are not acceptable, fallback to generic pool */
if (!gst_buffer_pool_config_validate_params (config, outcaps, size, min,
max)) {
GST_DEBUG_OBJECT (trans, "unsupported pool, making new pool");
gst_object_unref (pool);
pool = gst_buffer_pool_new ();
gst_buffer_pool_config_set_params (config, outcaps, size, min, max);
gst_buffer_pool_config_set_allocator (config, allocator, &params);
}
if (!gst_buffer_pool_set_config (pool, config))
goto config_failed;
}
}
if (update_allocator)
gst_query_set_nth_allocation_param (query, 0, allocator, &params);
else
gst_query_add_allocation_param (query, allocator, &params);
if (allocator)
gst_object_unref (allocator);
if (pool) {
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
gst_object_unref (pool);
}
return TRUE;
config_failed:
if (pool)
gst_object_unref (pool);
GST_ELEMENT_ERROR (trans, RESOURCE, SETTINGS,
("Failed to configure the buffer pool"),
("Configuration is most likely invalid, please report this issue."));
return FALSE;
}
2011-05-20 16:56:37 +00:00
static gboolean
gst_base_transform_do_bufferpool (GstBaseTransform * trans, GstCaps * outcaps)
{
GstQuery *query;
gboolean result = TRUE;
GstBufferPool *pool = NULL;
GstBaseTransformClass *klass;
2012-03-16 21:51:14 +00:00
GstBaseTransformPrivate *priv = trans->priv;
GstAllocator *allocator;
GstAllocationParams params;
2011-05-20 16:56:37 +00:00
/* there are these possibilities:
*
2011-07-27 10:49:40 +00:00
* 1) we negotiated passthrough, we can proxy the bufferpool directly and we
* will do that whenever some upstream does an allocation query.
* 2) we need to do a transform, we need to get a bufferpool from downstream
* and configure it. When upstream does the ALLOCATION query, the
* propose_allocation vmethod will be called and we will configure the
* upstream allocator with our proposed values then.
2011-05-20 16:56:37 +00:00
*/
2012-03-16 21:51:14 +00:00
if (priv->passthrough || priv->always_in_place) {
2011-05-20 16:56:37 +00:00
/* we are in passthrough, the input buffer is never copied and always passed
* along. We never allocate an output buffer on the srcpad. What we do is
* let the upstream element decide if it wants to use a bufferpool and
* then we will proxy the downstream pool */
GST_DEBUG_OBJECT (trans, "we're passthough, delay bufferpool");
gst_base_transform_set_allocation (trans, NULL, NULL, NULL, NULL);
2011-05-20 16:56:37 +00:00
return TRUE;
}
/* not passthrough, we need to allocate */
/* find a pool for the negotiated caps now */
2011-07-22 17:11:56 +00:00
GST_DEBUG_OBJECT (trans, "doing allocation query");
2011-05-20 16:56:37 +00:00
query = gst_query_new_allocation (outcaps, TRUE);
if (!gst_pad_peer_query (trans->srcpad, query)) {
/* not a problem, just debug a little */
GST_DEBUG_OBJECT (trans, "peer ALLOCATION query failed");
}
klass = GST_BASE_TRANSFORM_GET_CLASS (trans);
2011-05-20 16:56:37 +00:00
GST_DEBUG_OBJECT (trans, "calling decide_allocation");
g_assert (klass->decide_allocation != NULL);
result = klass->decide_allocation (trans, query);
GST_DEBUG_OBJECT (trans, "ALLOCATION (%d) params: %" GST_PTR_FORMAT, result,
query);
if (!result)
goto no_decide_allocation;
2011-05-20 16:56:37 +00:00
/* check again in case the sub-class have switch to passthrough/in-place
* after looking at the meta APIs */
if (priv->passthrough || priv->always_in_place) {
GST_DEBUG_OBJECT (trans, "no doing passthrough, delay bufferpool");
gst_base_transform_set_allocation (trans, NULL, NULL, NULL, NULL);
gst_query_unref (query);
return TRUE;
}
/* we got configuration from our peer or the decide_allocation method,
* parse them */
if (gst_query_get_n_allocation_params (query) > 0) {
gst_query_parse_nth_allocation_param (query, 0, &allocator, &params);
} else {
allocator = NULL;
gst_allocation_params_init (&params);
}
if (gst_query_get_n_allocation_pools (query) > 0)
gst_query_parse_nth_allocation_pool (query, 0, &pool, NULL, NULL, NULL);
2011-05-20 16:56:37 +00:00
/* now store */
result =
gst_base_transform_set_allocation (trans, pool, allocator, &params,
query);
2011-05-20 16:56:37 +00:00
return result;
/* Errors */
no_decide_allocation:
{
GST_WARNING_OBJECT (trans, "Subclass failed to decide allocation");
gst_query_unref (query);
return result;
}
2011-05-20 16:56:37 +00:00
}
/* function triggered when the in and out caps are negotiated and need
* to be configured in the subclass. */
static gboolean
gst_base_transform_configure_caps (GstBaseTransform * trans, GstCaps * in,
GstCaps * out)
{
gboolean ret = TRUE;
GstBaseTransformClass *klass;
2012-03-16 21:51:14 +00:00
GstBaseTransformPrivate *priv = trans->priv;
klass = GST_BASE_TRANSFORM_GET_CLASS (trans);
GST_DEBUG_OBJECT (trans, "in caps: %" GST_PTR_FORMAT, in);
GST_DEBUG_OBJECT (trans, "out caps: %" GST_PTR_FORMAT, out);
/* clear the cache */
2012-03-16 21:51:14 +00:00
gst_caps_replace (&priv->cache_caps1, NULL);
gst_caps_replace (&priv->cache_caps2, NULL);
/* figure out same caps state */
2012-03-16 21:51:14 +00:00
priv->have_same_caps = gst_caps_is_equal (in, out);
GST_DEBUG_OBJECT (trans, "have_same_caps: %d", priv->have_same_caps);
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
/* Set the passthrough if the class wants passthrough_on_same_caps
* and we have the same caps on each pad */
if (klass->passthrough_on_same_caps)
2012-03-16 21:51:14 +00:00
gst_base_transform_set_passthrough (trans, priv->have_same_caps);
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
/* now configure the element with the caps */
if (klass->set_caps) {
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
GST_DEBUG_OBJECT (trans, "Calling set_caps method to setup caps");
ret = klass->set_caps (trans, in, out);
}
return ret;
}
static GstCaps *
gst_base_transform_default_fixate_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
othercaps = gst_caps_fixate (othercaps);
GST_DEBUG_OBJECT (trans, "fixated to %" GST_PTR_FORMAT, othercaps);
return othercaps;
}
/* given a fixed @caps on @pad, create the best possible caps for the
* other pad.
* @caps must be fixed when calling this function.
*
* This function calls the transform caps vmethod of the basetransform to figure
* out the possible target formats. It then tries to select the best format from
* this list by:
*
* - attempt passthrough if the target caps is a superset of the input caps
* - fixating by using peer caps
* - fixating with transform fixate function
* - fixating with pad fixate functions.
*
* this function returns a caps that can be transformed into and is accepted by
* the peer element.
*/
static GstCaps *
gst_base_transform_find_transform (GstBaseTransform * trans, GstPad * pad,
GstCaps * caps)
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
{
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
GstBaseTransformClass *klass;
GstPad *otherpad, *otherpeer;
GstCaps *othercaps;
gboolean is_fixed;
/* caps must be fixed here, this is a programming error if it's not */
g_return_val_if_fail (gst_caps_is_fixed (caps), NULL);
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
klass = GST_BASE_TRANSFORM_GET_CLASS (trans);
otherpad = (pad == trans->srcpad) ? trans->sinkpad : trans->srcpad;
otherpeer = gst_pad_get_peer (otherpad);
/* see how we can transform the input caps. We need to do this even for
* passthrough because it might be possible that this element cannot support
* passthrough at all. */
othercaps = gst_base_transform_transform_caps (trans,
GST_PAD_DIRECTION (pad), caps, NULL);
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
/* The caps we can actually output is the intersection of the transformed
* caps with the pad template for the pad */
if (othercaps && !gst_caps_is_empty (othercaps)) {
GstCaps *intersect, *templ_caps;
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
templ_caps = gst_pad_get_pad_template_caps (otherpad);
GST_DEBUG_OBJECT (trans,
"intersecting against padtemplate %" GST_PTR_FORMAT, templ_caps);
intersect =
gst_caps_intersect_full (othercaps, templ_caps,
GST_CAPS_INTERSECT_FIRST);
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
gst_caps_unref (othercaps);
gst_caps_unref (templ_caps);
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
othercaps = intersect;
}
/* check if transform is empty */
if (!othercaps || gst_caps_is_empty (othercaps))
goto no_transform;
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
/* if the othercaps are not fixed, we need to fixate them, first attempt
* is by attempting passthrough if the othercaps are a superset of caps. */
/* FIXME. maybe the caps is not fixed because it has multiple structures of
* fixed caps */
is_fixed = gst_caps_is_fixed (othercaps);
if (!is_fixed) {
GST_DEBUG_OBJECT (trans,
"transform returned non fixed %" GST_PTR_FORMAT, othercaps);
/* Now let's see what the peer suggests based on our transformed caps */
if (otherpeer) {
GstCaps *peercaps, *intersection, *templ_caps;
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
GST_DEBUG_OBJECT (trans,
"Checking peer caps with filter %" GST_PTR_FORMAT, othercaps);
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
2011-11-15 15:46:37 +00:00
peercaps = gst_pad_query_caps (otherpeer, othercaps);
GST_DEBUG_OBJECT (trans, "Resulted in %" GST_PTR_FORMAT, peercaps);
if (!gst_caps_is_empty (peercaps)) {
templ_caps = gst_pad_get_pad_template_caps (otherpad);
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
GST_DEBUG_OBJECT (trans,
"Intersecting with template caps %" GST_PTR_FORMAT, templ_caps);
intersection =
gst_caps_intersect_full (peercaps, templ_caps,
GST_CAPS_INTERSECT_FIRST);
GST_DEBUG_OBJECT (trans, "Intersection: %" GST_PTR_FORMAT,
intersection);
gst_caps_unref (peercaps);
gst_caps_unref (templ_caps);
peercaps = intersection;
GST_DEBUG_OBJECT (trans,
"Intersecting with transformed caps %" GST_PTR_FORMAT, othercaps);
intersection =
gst_caps_intersect_full (peercaps, othercaps,
GST_CAPS_INTERSECT_FIRST);
GST_DEBUG_OBJECT (trans, "Intersection: %" GST_PTR_FORMAT,
intersection);
gst_caps_unref (peercaps);
gst_caps_unref (othercaps);
othercaps = intersection;
} else {
2012-03-30 14:53:00 +00:00
gst_caps_unref (othercaps);
othercaps = peercaps;
}
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
is_fixed = gst_caps_is_fixed (othercaps);
} else {
GST_DEBUG_OBJECT (trans, "no peer, doing passthrough");
gst_caps_unref (othercaps);
othercaps = gst_caps_ref (caps);
is_fixed = TRUE;
}
}
if (gst_caps_is_empty (othercaps))
goto no_transform_possible;
GST_DEBUG ("have %sfixed caps %" GST_PTR_FORMAT, (is_fixed ? "" : "non-"),
othercaps);
/* second attempt at fixation, call the fixate vmethod */
/* caps could be fixed but the subclass may want to add fields */
if (klass->fixate_caps) {
2012-01-26 17:56:14 +00:00
GST_DEBUG_OBJECT (trans, "calling fixate_caps for %" GST_PTR_FORMAT
" using caps %" GST_PTR_FORMAT " on pad %s:%s", othercaps, caps,
GST_DEBUG_PAD_NAME (otherpad));
/* note that we pass the complete array of structures to the fixate
* function, it needs to truncate itself */
othercaps =
klass->fixate_caps (trans, GST_PAD_DIRECTION (pad), caps, othercaps);
if (!othercaps) {
g_critical ("basetransform: second attempt to fixate caps returned "
"invalid (NULL) caps on pad %s:%s", GST_DEBUG_PAD_NAME (pad));
}
is_fixed = othercaps && gst_caps_is_fixed (othercaps);
GST_DEBUG_OBJECT (trans, "after fixating %" GST_PTR_FORMAT, othercaps);
}
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
/* caps should be fixed now, if not we have to fail. */
if (!is_fixed)
goto could_not_fixate;
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
/* and peer should accept */
2011-11-15 16:40:19 +00:00
if (otherpeer && !gst_pad_query_accept_caps (otherpeer, othercaps))
goto peer_no_accept;
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
GST_DEBUG_OBJECT (trans, "Input caps were %" GST_PTR_FORMAT
", and got final caps %" GST_PTR_FORMAT, caps, othercaps);
if (otherpeer)
gst_object_unref (otherpeer);
return othercaps;
/* ERRORS */
no_transform:
{
GST_DEBUG_OBJECT (trans,
"transform returned useless %" GST_PTR_FORMAT, othercaps);
goto error_cleanup;
}
no_transform_possible:
{
GST_DEBUG_OBJECT (trans,
"transform could not transform %" GST_PTR_FORMAT
" in anything we support", caps);
goto error_cleanup;
}
could_not_fixate:
{
GST_DEBUG_OBJECT (trans, "FAILED to fixate %" GST_PTR_FORMAT, othercaps);
goto error_cleanup;
}
peer_no_accept:
{
GST_DEBUG_OBJECT (trans, "FAILED to get peer of %" GST_PTR_FORMAT
" to accept %" GST_PTR_FORMAT, otherpad, othercaps);
goto error_cleanup;
}
error_cleanup:
{
if (otherpeer)
gst_object_unref (otherpeer);
if (othercaps)
gst_caps_unref (othercaps);
return NULL;
}
}
static gboolean
gst_base_transform_acceptcaps_default (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps)
{
GstPad *pad, *otherpad;
GstCaps *templ, *otempl, *ocaps = NULL;
gboolean ret = TRUE;
pad =
(direction ==
GST_PAD_SINK) ? GST_BASE_TRANSFORM_SINK_PAD (trans) :
GST_BASE_TRANSFORM_SRC_PAD (trans);
otherpad =
(direction ==
GST_PAD_SINK) ? GST_BASE_TRANSFORM_SRC_PAD (trans) :
GST_BASE_TRANSFORM_SINK_PAD (trans);
GST_DEBUG_OBJECT (trans, "accept caps %" GST_PTR_FORMAT, caps);
templ = gst_pad_get_pad_template_caps (pad);
otempl = gst_pad_get_pad_template_caps (otherpad);
/* get all the formats we can handle on this pad */
GST_DEBUG_OBJECT (trans, "intersect with pad template: %" GST_PTR_FORMAT,
templ);
if (!gst_caps_can_intersect (caps, templ))
goto reject_caps;
GST_DEBUG_OBJECT (trans, "trying to transform with filter: %"
GST_PTR_FORMAT " (the other pad template)", otempl);
ocaps = gst_base_transform_transform_caps (trans, direction, caps, otempl);
if (!ocaps || gst_caps_is_empty (ocaps))
goto no_transform_possible;
done:
GST_DEBUG_OBJECT (trans, "accept-caps result: %d", ret);
if (ocaps)
gst_caps_unref (ocaps);
gst_caps_unref (templ);
gst_caps_unref (otempl);
return ret;
/* ERRORS */
reject_caps:
{
GST_DEBUG_OBJECT (trans, "caps can't intersect with the template");
ret = FALSE;
goto done;
}
no_transform_possible:
{
GST_DEBUG_OBJECT (trans,
"transform could not transform %" GST_PTR_FORMAT
" in anything we support", caps);
ret = FALSE;
goto done;
}
}
/* called when new caps arrive on the sink pad,
* We try to find the best caps for the other side using our _find_transform()
* function. If there are caps, we configure the transform for this new
* transformation.
*/
static gboolean
gst_base_transform_setcaps (GstBaseTransform * trans, GstPad * pad,
GstCaps * incaps)
{
2012-03-16 21:51:14 +00:00
GstBaseTransformPrivate *priv = trans->priv;
GstCaps *outcaps, *prev_incaps = NULL, *prev_outcaps = NULL;
gboolean ret = TRUE;
GST_DEBUG_OBJECT (pad, "have new caps %p %" GST_PTR_FORMAT, incaps, incaps);
/* find best possible caps for the other pad */
outcaps = gst_base_transform_find_transform (trans, pad, incaps);
if (!outcaps || gst_caps_is_empty (outcaps))
goto no_transform_possible;
/* configure the element now */
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
/* if we have the same caps, we can optimize and reuse the input caps */
if (gst_caps_is_equal (incaps, outcaps)) {
GST_INFO_OBJECT (trans, "reuse caps");
gst_caps_unref (outcaps);
outcaps = gst_caps_ref (incaps);
}
prev_incaps = gst_pad_get_current_caps (trans->sinkpad);
prev_outcaps = gst_pad_get_current_caps (trans->srcpad);
if (prev_incaps && prev_outcaps && gst_caps_is_equal (prev_incaps, incaps)
&& gst_caps_is_equal (prev_outcaps, outcaps)) {
GST_DEBUG_OBJECT (trans,
"New caps equal to old ones: %" GST_PTR_FORMAT " -> %" GST_PTR_FORMAT,
incaps, outcaps);
ret = TRUE;
} else {
/* call configure now */
if (!(ret = gst_base_transform_configure_caps (trans, incaps, outcaps)))
goto failed_configure;
if (!prev_outcaps || !gst_caps_is_equal (outcaps, prev_outcaps))
/* let downstream know about our caps */
ret = gst_pad_set_caps (trans->srcpad, outcaps);
}
if (ret) {
/* try to get a pool when needed */
ret = gst_base_transform_do_bufferpool (trans, outcaps);
}
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
done:
if (outcaps)
gst_caps_unref (outcaps);
if (prev_incaps)
gst_caps_unref (prev_incaps);
if (prev_outcaps)
gst_caps_unref (prev_outcaps);
2012-03-16 21:25:38 +00:00
GST_OBJECT_LOCK (trans);
2012-03-16 21:51:14 +00:00
priv->negotiated = ret;
2012-03-16 21:25:38 +00:00
GST_OBJECT_UNLOCK (trans);
tests/network-clock.scm: Commentary update. Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
2005-07-01 16:46:59 +00:00
return ret;
/* ERRORS */
no_transform_possible:
{
GST_WARNING_OBJECT (trans,
"transform could not transform %" GST_PTR_FORMAT
" in anything we support", incaps);
ret = FALSE;
goto done;
}
failed_configure:
{
GST_WARNING_OBJECT (trans, "FAILED to configure incaps %" GST_PTR_FORMAT
" and outcaps %" GST_PTR_FORMAT, incaps, outcaps);
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
ret = FALSE;
goto done;
}
}
static gboolean
gst_base_transform_default_propose_allocation (GstBaseTransform * trans,
GstQuery * decide_query, GstQuery * query)
{
gboolean ret;
if (decide_query == NULL) {
GST_DEBUG_OBJECT (trans, "doing passthrough query");
ret = gst_pad_peer_query (trans->srcpad, query);
} else {
guint i, n_metas;
/* non-passthrough, copy all metadata, decide_query does not contain the
* metadata anymore that depends on the buffer memory */
n_metas = gst_query_get_n_allocation_metas (decide_query);
for (i = 0; i < n_metas; i++) {
GType api;
const GstStructure *params;
api = gst_query_parse_nth_allocation_meta (decide_query, i, &params);
GST_DEBUG_OBJECT (trans, "proposing metadata %s", g_type_name (api));
gst_query_add_allocation_meta (query, api, params);
}
ret = TRUE;
}
return ret;
}
static gboolean
gst_base_transform_reconfigure_unlocked (GstBaseTransform * trans)
{
gboolean reconfigure, ret = TRUE;
reconfigure = gst_pad_check_reconfigure (trans->srcpad);
if (G_UNLIKELY (reconfigure)) {
GstCaps *incaps;
GST_DEBUG_OBJECT (trans, "we had a pending reconfigure");
incaps = gst_pad_get_current_caps (trans->sinkpad);
if (incaps == NULL)
goto done;
/* if we need to reconfigure we pretend new caps arrived. This
* will reconfigure the transform with the new output format. */
if (!gst_base_transform_setcaps (trans, trans->sinkpad, incaps)) {
GST_ELEMENT_WARNING (trans, STREAM, FORMAT,
("not negotiated"), ("not negotiated"));
ret = FALSE;
}
gst_caps_unref (incaps);
}
done:
if (!ret)
gst_pad_mark_reconfigure (trans->srcpad);
return ret;
}
/**
* gst_base_transform_reconfigure:
* @trans: the #GstBaseTransform to set
*
* Negotiates src pad caps with downstream elements if the source pad is
* marked as needing reconfiguring. Unmarks GST_PAD_FLAG_NEED_RECONFIGURE in
* any case. But marks it again if negotiation fails.
*
* Do not call this in the #GstBaseTransformClass::transform or
* #GstBaseTransformClass::transform_ip vmethod. Call this in
* #GstBaseTransformClass::submit_input_buffer,
* #GstBaseTransformClass::prepare_output_buffer or in
* #GstBaseTransformClass::generate_output _before_ any output buffer is
* allocated.
*
* It will be default be called when handling an ALLOCATION query or at the
* very beginning of the default #GstBaseTransformClass::submit_input_buffer
* implementation.
*
* Returns: %TRUE if the negotiation succeeded, else %FALSE.
*
* Since: 1.18
*/
gboolean
gst_base_transform_reconfigure (GstBaseTransform * trans)
{
gboolean ret;
g_return_val_if_fail (GST_IS_BASE_TRANSFORM (trans), FALSE);
GST_PAD_STREAM_LOCK (trans->sinkpad);
ret = gst_base_transform_reconfigure_unlocked (trans);
if (!ret)
gst_pad_mark_reconfigure (trans->srcpad);
GST_PAD_STREAM_UNLOCK (trans->sinkpad);
return ret;
}
static gboolean
2011-08-25 10:02:16 +00:00
gst_base_transform_default_query (GstBaseTransform * trans,
GstPadDirection direction, GstQuery * query)
{
gboolean ret = FALSE;
GstPad *pad, *otherpad;
GstBaseTransformClass *klass;
2012-03-16 21:51:14 +00:00
GstBaseTransformPrivate *priv = trans->priv;
if (direction == GST_PAD_SRC) {
pad = trans->srcpad;
otherpad = trans->sinkpad;
} else {
pad = trans->sinkpad;
otherpad = trans->srcpad;
}
klass = GST_BASE_TRANSFORM_GET_CLASS (trans);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_ALLOCATION:
{
GstQuery *decide_query = NULL;
2011-05-20 16:56:37 +00:00
/* can only be done on the sinkpad */
if (direction != GST_PAD_SINK)
goto done;
ret = gst_base_transform_reconfigure_unlocked (trans);
if (G_UNLIKELY (!ret))
goto done;
GST_OBJECT_LOCK (trans);
if (!priv->negotiated && !priv->passthrough && (klass->set_caps != NULL)) {
GST_DEBUG_OBJECT (trans,
"not negotiated yet but need negotiation, can't answer ALLOCATION query");
GST_OBJECT_UNLOCK (trans);
goto done;
}
decide_query = trans->priv->query;
trans->priv->query = NULL;
GST_OBJECT_UNLOCK (trans);
2011-05-20 16:56:37 +00:00
GST_DEBUG_OBJECT (trans,
"calling propose allocation with query %" GST_PTR_FORMAT,
decide_query);
/* pass the query to the propose_allocation vmethod if any */
if (G_LIKELY (klass->propose_allocation))
ret = klass->propose_allocation (trans, decide_query, query);
else
ret = FALSE;
if (decide_query) {
GST_OBJECT_LOCK (trans);
if (trans->priv->query == NULL)
trans->priv->query = decide_query;
else
gst_query_unref (decide_query);
GST_OBJECT_UNLOCK (trans);
}
GST_DEBUG_OBJECT (trans, "ALLOCATION ret %d, %" GST_PTR_FORMAT, ret,
query);
break;
}
case GST_QUERY_POSITION:
{
GstFormat format;
gst_query_parse_position (query, &format, NULL);
if (format == GST_FORMAT_TIME && trans->segment.format == GST_FORMAT_TIME) {
gint64 pos;
ret = TRUE;
if ((direction == GST_PAD_SINK)
|| (trans->priv->position_out == GST_CLOCK_TIME_NONE)) {
pos =
gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME,
trans->segment.position);
} else {
pos = gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME,
trans->priv->position_out);
}
gst_query_set_position (query, format, pos);
} else {
ret = gst_pad_peer_query (otherpad, query);
}
break;
}
case GST_QUERY_ACCEPT_CAPS:
{
GstCaps *caps;
gst_query_parse_accept_caps (query, &caps);
if (klass->accept_caps) {
ret = klass->accept_caps (trans, direction, caps);
gst_query_set_accept_caps_result (query, ret);
/* return TRUE, we answered the query */
ret = TRUE;
}
break;
}
case GST_QUERY_CAPS:
{
GstCaps *filter, *caps;
gst_query_parse_caps (query, &filter);
caps = gst_base_transform_query_caps (trans, pad, filter);
gst_query_set_caps_result (query, caps);
gst_caps_unref (caps);
ret = TRUE;
break;
}
default:
ret = gst_pad_peer_query (otherpad, query);
break;
}
done:
2011-08-25 10:02:16 +00:00
return ret;
}
static gboolean
2011-11-16 16:22:56 +00:00
gst_base_transform_query (GstPad * pad, GstObject * parent, GstQuery * query)
2011-08-25 10:02:16 +00:00
{
GstBaseTransform *trans;
GstBaseTransformClass *bclass;
gboolean ret = FALSE;
2011-08-25 10:02:16 +00:00
trans = GST_BASE_TRANSFORM_CAST (parent);
2011-08-25 10:02:16 +00:00
bclass = GST_BASE_TRANSFORM_GET_CLASS (trans);
if (bclass->query)
ret = bclass->query (trans, GST_PAD_DIRECTION (pad), query);
2011-08-25 10:02:16 +00:00
return ret;
}
/* this function either returns the input buffer without incrementing the
* refcount or it allocates a new (writable) buffer */
static GstFlowReturn
default_prepare_output_buffer (GstBaseTransform * trans,
GstBuffer * inbuf, GstBuffer ** outbuf)
{
GstBaseTransformPrivate *priv;
GstFlowReturn ret;
GstBaseTransformClass *bclass;
GstCaps *incaps, *outcaps;
gsize insize, outsize;
gboolean res;
priv = trans->priv;
bclass = GST_BASE_TRANSFORM_GET_CLASS (trans);
/* figure out how to allocate an output buffer */
2012-03-16 21:51:14 +00:00
if (priv->passthrough) {
/* passthrough, we will not modify the incoming buffer so we can just
* reuse it */
GST_DEBUG_OBJECT (trans, "passthrough: reusing input buffer");
*outbuf = inbuf;
goto done;
}
/* we can't reuse the input buffer */
if (priv->pool) {
if (!priv->pool_active) {
GST_DEBUG_OBJECT (trans, "setting pool %p active", priv->pool);
if (!gst_buffer_pool_set_active (priv->pool, TRUE))
goto activate_failed;
priv->pool_active = TRUE;
}
GST_DEBUG_OBJECT (trans, "using pool alloc");
ret = gst_buffer_pool_acquire_buffer (priv->pool, outbuf, NULL);
if (ret != GST_FLOW_OK)
goto alloc_failed;
goto copy_meta;
}
/* no pool, we need to figure out the size of the output buffer first */
2012-03-16 21:51:14 +00:00
if ((bclass->transform_ip != NULL) && priv->always_in_place) {
/* we want to do an in-place alloc */
if (gst_buffer_is_writable (inbuf)) {
GST_DEBUG_OBJECT (trans, "inplace reuse writable input buffer");
*outbuf = inbuf;
} else {
GST_DEBUG_OBJECT (trans, "making writable buffer copy");
/* we make a copy of the input buffer */
*outbuf = gst_buffer_copy (inbuf);
}
goto done;
}
/* else use the transform function to get the size */
incaps = gst_pad_get_current_caps (trans->sinkpad);
outcaps = gst_pad_get_current_caps (trans->srcpad);
/* srcpad might be flushing already if we're being shut down */
if (outcaps == NULL)
goto no_outcaps;
GST_DEBUG_OBJECT (trans, "getting output size for alloc");
/* copy transform, figure out the output size */
insize = gst_buffer_get_size (inbuf);
res = gst_base_transform_transform_size (trans,
GST_PAD_SINK, incaps, insize, outcaps, &outsize);
gst_caps_unref (incaps);
gst_caps_unref (outcaps);
if (!res)
goto unknown_size;
GST_DEBUG_OBJECT (trans, "doing alloc of size %" G_GSIZE_FORMAT, outsize);
*outbuf = gst_buffer_new_allocate (priv->allocator, outsize, &priv->params);
if (!*outbuf) {
ret = GST_FLOW_ERROR;
goto alloc_failed;
}
copy_meta:
/* copy the metadata */
if (bclass->copy_metadata)
if (!bclass->copy_metadata (trans, inbuf, *outbuf)) {
/* something failed, post a warning */
GST_ELEMENT_WARNING (trans, STREAM, NOT_IMPLEMENTED,
("could not copy metadata"), (NULL));
}
done:
return GST_FLOW_OK;
/* ERRORS */
activate_failed:
{
GST_ELEMENT_ERROR (trans, RESOURCE, SETTINGS,
("failed to activate bufferpool"), ("failed to activate bufferpool"));
return GST_FLOW_ERROR;
}
unknown_size:
{
GST_ERROR_OBJECT (trans, "unknown output size");
return GST_FLOW_ERROR;
}
alloc_failed:
{
GST_DEBUG_OBJECT (trans, "could not allocate buffer from pool");
return ret;
}
no_outcaps:
{
GST_DEBUG_OBJECT (trans, "no output caps, source pad has been deactivated");
gst_caps_unref (incaps);
return GST_FLOW_FLUSHING;
}
}
typedef struct
{
GstBaseTransform *trans;
GstBuffer *outbuf;
} CopyMetaData;
static gboolean
foreach_metadata (GstBuffer * inbuf, GstMeta ** meta, gpointer user_data)
{
CopyMetaData *data = user_data;
GstBaseTransform *trans = data->trans;
GstBaseTransformClass *klass;
const GstMetaInfo *info = (*meta)->info;
GstBuffer *outbuf = data->outbuf;
gboolean do_copy = FALSE;
klass = GST_BASE_TRANSFORM_GET_CLASS (trans);
if (gst_meta_api_type_has_tag (info->api, _gst_meta_tag_memory)) {
/* never call the transform_meta with memory specific metadata */
GST_DEBUG_OBJECT (trans, "not copying memory specific metadata %s",
g_type_name (info->api));
do_copy = FALSE;
} else if (klass->transform_meta) {
do_copy = klass->transform_meta (trans, outbuf, *meta, inbuf);
GST_DEBUG_OBJECT (trans, "transformed metadata %s: copy: %d",
g_type_name (info->api), do_copy);
}
/* we only copy metadata when the subclass implemented a transform_meta
* function and when it returns %TRUE */
if (do_copy) {
GstMetaTransformCopy copy_data = { FALSE, 0, -1 };
/* simply copy then */
if (info->transform_func) {
2017-11-24 08:49:27 +00:00
GST_DEBUG_OBJECT (trans, "copy metadata %s", g_type_name (info->api));
info->transform_func (outbuf, *meta, inbuf,
_gst_meta_transform_copy, &copy_data);
} else {
2017-11-24 08:49:27 +00:00
GST_DEBUG_OBJECT (trans, "couldn't copy metadata %s",
g_type_name (info->api));
}
}
return TRUE;
}
static gboolean
default_copy_metadata (GstBaseTransform * trans,
GstBuffer * inbuf, GstBuffer * outbuf)
{
GstBaseTransformPrivate *priv = trans->priv;
CopyMetaData data;
/* now copy the metadata */
GST_DEBUG_OBJECT (trans, "copying metadata");
/* this should not happen, buffers allocated from a pool or with
* new_allocate should always be writable. */
if (!gst_buffer_is_writable (outbuf))
goto not_writable;
/* when we get here, the metadata should be writable */
gst_buffer_copy_into (outbuf, inbuf,
GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS, 0, -1);
/* clear the GAP flag when the subclass does not understand it */
if (!priv->gap_aware)
GST_BUFFER_FLAG_UNSET (outbuf, GST_BUFFER_FLAG_GAP);
data.trans = trans;
data.outbuf = outbuf;
gst_buffer_foreach_meta (inbuf, foreach_metadata, &data);
return TRUE;
/* ERRORS */
not_writable:
{
GST_WARNING_OBJECT (trans, "buffer %p not writable", outbuf);
return FALSE;
}
}
/* Given @caps calculate the size of one unit.
*
* For video caps, this is the size of one frame (and thus one buffer).
* For audio caps, this is the size of one sample.
*
* These values are cached since they do not change and the calculation
* potentially involves parsing caps and other expensive stuff.
*
* We have two cache locations to store the size, one for the source caps
* and one for the sink caps.
*
* this function returns %FALSE if no size could be calculated.
*/
static gboolean
gst_base_transform_get_unit_size (GstBaseTransform * trans, GstCaps * caps,
gsize * size)
{
gboolean res = FALSE;
GstBaseTransformClass *bclass;
2012-03-16 21:51:14 +00:00
GstBaseTransformPrivate *priv = trans->priv;
/* see if we have the result cached */
2012-03-16 21:51:14 +00:00
if (priv->cache_caps1 == caps) {
*size = priv->cache_caps1_size;
GST_DEBUG_OBJECT (trans,
"returned %" G_GSIZE_FORMAT " from first cache", *size);
return TRUE;
}
2012-03-16 21:51:14 +00:00
if (priv->cache_caps2 == caps) {
*size = priv->cache_caps2_size;
GST_DEBUG_OBJECT (trans,
"returned %" G_GSIZE_FORMAT " from second cached", *size);
return TRUE;
}
bclass = GST_BASE_TRANSFORM_GET_CLASS (trans);
res = bclass->get_unit_size (trans, caps, size);
GST_DEBUG_OBJECT (trans,
"caps %" GST_PTR_FORMAT " has unit size %" G_GSIZE_FORMAT ", res %s",
caps, *size, res ? "TRUE" : "FALSE");
if (res) {
/* and cache the values */
2012-03-16 21:51:14 +00:00
if (priv->cache_caps1 == NULL) {
gst_caps_replace (&priv->cache_caps1, caps);
priv->cache_caps1_size = *size;
GST_DEBUG_OBJECT (trans,
"caching %" G_GSIZE_FORMAT " in first cache", *size);
2012-03-16 21:51:14 +00:00
} else if (priv->cache_caps2 == NULL) {
gst_caps_replace (&priv->cache_caps2, caps);
priv->cache_caps2_size = *size;
GST_DEBUG_OBJECT (trans,
"caching %" G_GSIZE_FORMAT " in second cache", *size);
} else {
GST_DEBUG_OBJECT (trans, "no free spot to cache unit_size");
}
}
return res;
}
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
static gboolean
gst_base_transform_sink_event (GstPad * pad, GstObject * parent,
GstEvent * event)
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
{
GstBaseTransform *trans;
GstBaseTransformClass *bclass;
gboolean ret = TRUE;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
trans = GST_BASE_TRANSFORM_CAST (parent);
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
bclass = GST_BASE_TRANSFORM_GET_CLASS (trans);
if (bclass->sink_event)
ret = bclass->sink_event (trans, event);
else
gst_event_unref (event);
return ret;
}
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
static gboolean
gst_base_transform_sink_eventfunc (GstBaseTransform * trans, GstEvent * event)
{
gboolean ret = TRUE, forward = TRUE;
2012-03-16 21:51:14 +00:00
GstBaseTransformPrivate *priv = trans->priv;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
switch (GST_EVENT_TYPE (event)) {
Some docs updates Original commit message from CVS: * CHANGES-0.9: * docs/design/part-TODO.txt: * docs/design/part-events.txt: Some docs updates * gst/base/gstbasesink.c: (gst_base_sink_handle_object), (gst_base_sink_event), (gst_base_sink_do_sync), (gst_base_sink_activate_push), (gst_base_sink_activate_pull): * gst/base/gstbasesrc.c: (gst_base_src_send_discont), (gst_base_src_do_seek), (gst_base_src_event_handler), (gst_base_src_loop): * gst/base/gstbasetransform.c: (gst_base_transform_transform_caps), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_get_size), (gst_base_transform_buffer_alloc), (gst_base_transform_event), (gst_base_transform_handle_buffer), (gst_base_transform_set_passthrough), (gst_base_transform_is_passthrough): * gst/elements/gstfakesink.c: (gst_fake_sink_event): * gst/elements/gstfilesink.c: (gst_file_sink_event): Event updates. * gst/gstbuffer.h: Use faster casts. * gst/gstelement.c: (gst_element_seek): * gst/gstelement.h: Update gst_element_seek. * gst/gstevent.c: (gst_event_finalize), (_gst_event_copy), (gst_event_new), (gst_event_new_custom), (gst_event_get_structure), (gst_event_new_flush_start), (gst_event_new_flush_stop), (gst_event_new_eos), (gst_event_new_newsegment), (gst_event_parse_newsegment), (gst_event_new_tag), (gst_event_parse_tag), (gst_event_new_filler), (gst_event_new_qos), (gst_event_parse_qos), (gst_event_new_seek), (gst_event_parse_seek), (gst_event_new_navigation): * gst/gstevent.h: Make GstEvent use GstStructure. Add parsing code, make sure the API is sufficiently generic. Mark possible directions of events and serialization. * gst/gstmessage.c: (gst_message_init), (gst_message_finalize), (_gst_message_copy), (gst_message_new_segment_start), (gst_message_new_segment_done), (gst_message_new_custom), (gst_message_parse_segment_start), (gst_message_parse_segment_done): Small cleanups. * gst/gstpad.c: (gst_pad_get_caps_unlocked), (gst_pad_accept_caps), (gst_pad_set_caps), (gst_pad_send_event): Update for new events. Catch events sent in wrong directions. * gst/gstqueue.c: (gst_queue_link_src), (gst_queue_handle_sink_event), (gst_queue_chain), (gst_queue_loop), (gst_queue_handle_src_query): Event updates. * gst/gsttag.c: * gst/gsttag.h: Remove event code from this file. * libs/gst/dataprotocol/dataprotocol.c: (gst_dp_packet_from_event), (gst_dp_event_from_packet): Event updates.
2005-07-27 18:33:03 +00:00
case GST_EVENT_FLUSH_START:
break;
case GST_EVENT_FLUSH_STOP:
GST_OBJECT_LOCK (trans);
/* reset QoS parameters */
2012-03-16 21:51:14 +00:00
priv->proportion = 1.0;
priv->earliest_time = -1;
priv->discont = FALSE;
priv->processed = 0;
priv->dropped = 0;
GST_OBJECT_UNLOCK (trans);
/* we need new segment info after the flush. */
trans->have_segment = FALSE;
gst_segment_init (&trans->segment, GST_FORMAT_UNDEFINED);
2012-03-16 21:51:14 +00:00
priv->position_out = GST_CLOCK_TIME_NONE;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
break;
case GST_EVENT_EOS:
break;
case GST_EVENT_TAG:
break;
case GST_EVENT_CAPS:
{
GstCaps *caps;
gst_event_parse_caps (event, &caps);
/* clear any pending reconfigure flag */
gst_pad_check_reconfigure (trans->srcpad);
ret = gst_base_transform_setcaps (trans, trans->sinkpad, caps);
if (!ret)
gst_pad_mark_reconfigure (trans->srcpad);
forward = FALSE;
break;
}
case GST_EVENT_SEGMENT:
{
gst_event_copy_segment (event, &trans->segment);
trans->have_segment = TRUE;
GST_DEBUG_OBJECT (trans, "received SEGMENT %" GST_SEGMENT_FORMAT,
&trans->segment);
break;
}
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
default:
break;
}
if (ret && forward)
ret = gst_pad_push_event (trans->srcpad, event);
else
gst_event_unref (event);
return ret;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
}
static gboolean
gst_base_transform_src_event (GstPad * pad, GstObject * parent,
GstEvent * event)
{
GstBaseTransform *trans;
GstBaseTransformClass *bclass;
gboolean ret = TRUE;
trans = GST_BASE_TRANSFORM_CAST (parent);
bclass = GST_BASE_TRANSFORM_GET_CLASS (trans);
if (bclass->src_event)
ret = bclass->src_event (trans, event);
else
gst_event_unref (event);
return ret;
}
static gboolean
gst_base_transform_src_eventfunc (GstBaseTransform * trans, GstEvent * event)
{
gboolean ret;
GST_DEBUG_OBJECT (trans, "handling event %p %" GST_PTR_FORMAT, event, event);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
break;
case GST_EVENT_NAVIGATION:
break;
case GST_EVENT_QOS:
{
gdouble proportion;
GstClockTimeDiff diff;
GstClockTime timestamp;
2011-05-09 16:48:55 +00:00
gst_event_parse_qos (event, NULL, &proportion, &diff, &timestamp);
gst_base_transform_update_qos (trans, proportion, diff, timestamp);
break;
}
default:
break;
}
ret = gst_pad_push_event (trans->sinkpad, event);
return ret;
}
/* Takes the input buffer */
static GstFlowReturn
default_submit_input_buffer (GstBaseTransform * trans, gboolean is_discont,
GstBuffer * inbuf)
{
GstBaseTransformClass *bclass = GST_BASE_TRANSFORM_GET_CLASS (trans);
2012-03-16 21:51:14 +00:00
GstBaseTransformPrivate *priv = trans->priv;
GstFlowReturn ret = GST_FLOW_OK;
GstClockTime running_time;
GstClockTime timestamp;
if (G_UNLIKELY (!gst_base_transform_reconfigure_unlocked (trans)))
goto not_negotiated;
if (GST_BUFFER_OFFSET_IS_VALID (inbuf))
GST_DEBUG_OBJECT (trans,
"handling buffer %p of size %" G_GSIZE_FORMAT ", PTS %" GST_TIME_FORMAT
" and offset %" G_GUINT64_FORMAT, inbuf, gst_buffer_get_size (inbuf),
GST_TIME_ARGS (GST_BUFFER_PTS (inbuf)), GST_BUFFER_OFFSET (inbuf));
else
GST_DEBUG_OBJECT (trans,
"handling buffer %p of size %" G_GSIZE_FORMAT ", PTS %" GST_TIME_FORMAT
" and offset NONE", inbuf, gst_buffer_get_size (inbuf),
GST_TIME_ARGS (GST_BUFFER_PTS (inbuf)));
/* Don't allow buffer handling before negotiation, except in passthrough mode
* or if the class doesn't implement a set_caps function (in which case it doesn't
* care about caps)
*/
2012-03-16 21:51:14 +00:00
if (!priv->negotiated && !priv->passthrough && (bclass->set_caps != NULL))
goto not_negotiated;
/* can only do QoS if the segment is in TIME */
if (trans->segment.format != GST_FORMAT_TIME)
goto no_qos;
/* QOS is done on the running time of the buffer, get it now */
timestamp = GST_BUFFER_TIMESTAMP (inbuf);
running_time = gst_segment_to_running_time (&trans->segment, GST_FORMAT_TIME,
timestamp);
if (running_time != -1) {
gboolean need_skip;
GstClockTime earliest_time;
gdouble proportion;
/* lock for getting the QoS parameters that are set (in a different thread)
* with the QOS events */
GST_OBJECT_LOCK (trans);
2012-03-16 21:51:14 +00:00
earliest_time = priv->earliest_time;
proportion = priv->proportion;
/* check for QoS, don't perform conversion for buffers
* that are known to be late. */
2012-03-16 21:51:14 +00:00
need_skip = priv->qos_enabled &&
earliest_time != -1 && running_time <= earliest_time;
GST_OBJECT_UNLOCK (trans);
if (need_skip) {
GstMessage *qos_msg;
GstClockTime duration;
guint64 stream_time;
gint64 jitter;
GST_CAT_DEBUG_OBJECT (GST_CAT_QOS, trans, "skipping transform: qostime %"
GST_TIME_FORMAT " <= %" GST_TIME_FORMAT,
GST_TIME_ARGS (running_time), GST_TIME_ARGS (earliest_time));
2012-03-16 21:51:14 +00:00
priv->dropped++;
duration = GST_BUFFER_DURATION (inbuf);
stream_time =
gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME,
timestamp);
jitter = GST_CLOCK_DIFF (running_time, earliest_time);
qos_msg =
gst_message_new_qos (GST_OBJECT_CAST (trans), FALSE, running_time,
stream_time, timestamp, duration);
gst_message_set_qos_values (qos_msg, jitter, proportion, 1000000);
gst_message_set_qos_stats (qos_msg, GST_FORMAT_BUFFERS,
2012-03-16 21:51:14 +00:00
priv->processed, priv->dropped);
gst_element_post_message (GST_ELEMENT_CAST (trans), qos_msg);
/* mark discont for next buffer */
2012-03-16 21:51:14 +00:00
priv->discont = TRUE;
ret = GST_BASE_TRANSFORM_FLOW_DROPPED;
goto skip;
}
}
no_qos:
/* Stash input buffer where the default generate_output
* function can find it */
if (trans->queued_buf)
gst_buffer_unref (trans->queued_buf);
trans->queued_buf = inbuf;
return ret;
skip:
gst_buffer_unref (inbuf);
return ret;
not_negotiated:
{
gst_buffer_unref (inbuf);
if (GST_PAD_IS_FLUSHING (trans->srcpad))
return GST_FLOW_FLUSHING;
return GST_FLOW_NOT_NEGOTIATED;
}
}
static GstFlowReturn
default_generate_output (GstBaseTransform * trans, GstBuffer ** outbuf)
{
GstBaseTransformClass *bclass = GST_BASE_TRANSFORM_GET_CLASS (trans);
GstBaseTransformPrivate *priv = trans->priv;
GstFlowReturn ret = GST_FLOW_OK;
GstBuffer *inbuf;
gboolean want_in_place;
/* Retrieve stashed input buffer, if the default submit_input_buffer
* was run. Takes ownership back from there */
inbuf = trans->queued_buf;
trans->queued_buf = NULL;
/* This default processing method needs one input buffer to feed to
* the transform functions, we can't do anything without it */
if (inbuf == NULL)
return GST_FLOW_OK;
/* first try to allocate an output buffer based on the currently negotiated
* format. outbuf will contain a buffer suitable for doing the configured
* transform after this function. */
if (bclass->prepare_output_buffer == NULL)
goto no_prepare;
GST_DEBUG_OBJECT (trans, "calling prepare buffer");
ret = bclass->prepare_output_buffer (trans, inbuf, outbuf);
if (ret != GST_FLOW_OK || *outbuf == NULL)
goto no_buffer;
GST_DEBUG_OBJECT (trans, "using allocated buffer in %p, out %p", inbuf,
*outbuf);
/* now perform the needed transform */
2012-03-16 21:51:14 +00:00
if (priv->passthrough) {
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
/* In passthrough mode, give transform_ip a look at the
* buffer, without making it writable, or just push the
* data through */
if (bclass->transform_ip_on_passthrough && bclass->transform_ip) {
GST_DEBUG_OBJECT (trans, "doing passthrough transform_ip");
ret = bclass->transform_ip (trans, *outbuf);
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
} else {
GST_DEBUG_OBJECT (trans, "element is in passthrough");
}
} else {
2012-03-16 21:51:14 +00:00
want_in_place = (bclass->transform_ip != NULL) && priv->always_in_place;
if (want_in_place) {
GST_DEBUG_OBJECT (trans, "doing inplace transform");
ret = bclass->transform_ip (trans, *outbuf);
} else {
GST_DEBUG_OBJECT (trans, "doing non-inplace transform");
if (bclass->transform)
ret = bclass->transform (trans, inbuf, *outbuf);
else
ret = GST_FLOW_NOT_SUPPORTED;
}
}
/* only unref input buffer if we allocated a new outbuf buffer. If we reused
* the input buffer, no refcount is changed to keep the input buffer writable
* when needed. */
if (*outbuf != inbuf)
gst_buffer_unref (inbuf);
return ret;
/* ERRORS */
no_prepare:
{
gst_buffer_unref (inbuf);
GST_ELEMENT_ERROR (trans, STREAM, NOT_IMPLEMENTED,
("Sub-class has no prepare_output_buffer implementation"), (NULL));
return GST_FLOW_NOT_SUPPORTED;
}
no_buffer:
{
gst_buffer_unref (inbuf);
*outbuf = NULL;
GST_WARNING_OBJECT (trans, "could not get buffer from pool: %s",
gst_flow_get_name (ret));
return ret;
}
}
/* FIXME, getrange is broken, need to pull range from the other
* end based on the transform_size result.
*/
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
static GstFlowReturn
gst_base_transform_getrange (GstPad * pad, GstObject * parent, guint64 offset,
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
guint length, GstBuffer ** buffer)
{
GstBaseTransformClass *klass = GST_BASE_TRANSFORM_GET_CLASS (parent);
GstBaseTransform *trans = GST_BASE_TRANSFORM_CAST (parent);
GstBaseTransformPrivate *priv = trans->priv;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
GstFlowReturn ret;
GstBuffer *inbuf = NULL;
GstBuffer *outbuf = NULL;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
/* Try and generate a buffer, if the sub-class wants more data,
* pull some and repeat until a buffer (or error) is produced */
do {
ret = klass->generate_output (trans, &outbuf);
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
/* Consume the DROPPED return value and go get more data */
if (ret == GST_BASE_TRANSFORM_FLOW_DROPPED)
ret = GST_FLOW_OK;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
if (ret != GST_FLOW_OK || outbuf != NULL)
break;
/* No buffer generated, try and pull data */
ret = gst_pad_pull_range (trans->sinkpad, offset, length, &inbuf);
if (G_UNLIKELY (ret != GST_FLOW_OK))
goto pull_error;
if (klass->before_transform)
klass->before_transform (trans, inbuf);
/* Set discont flag so we can mark the next outgoing buffer */
if (GST_BUFFER_IS_DISCONT (inbuf)) {
GST_DEBUG_OBJECT (trans, "got DISCONT buffer %p", inbuf);
priv->discont = TRUE;
}
/* FIXME: Input offsets and lengths need to be translated, as per
* the FIXME above. For now, just advance somewhat */
offset += gst_buffer_get_size (inbuf);
ret = klass->submit_input_buffer (trans, priv->discont, inbuf);
if (ret != GST_FLOW_OK) {
if (ret == GST_BASE_TRANSFORM_FLOW_DROPPED)
ret = GST_FLOW_OK;
goto done;
}
} while (ret == GST_FLOW_OK && outbuf == NULL);
*buffer = outbuf;
if (outbuf) {
/* apply DISCONT flag if the buffer is not yet marked as such */
if (priv->discont) {
GST_DEBUG_OBJECT (trans, "we have a pending DISCONT");
if (!GST_BUFFER_IS_DISCONT (outbuf)) {
GST_DEBUG_OBJECT (trans, "marking DISCONT on output buffer");
outbuf = gst_buffer_make_writable (outbuf);
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DISCONT);
}
priv->discont = FALSE;
}
priv->processed++;
}
done:
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
return ret;
/* ERRORS */
pull_error:
{
GST_DEBUG_OBJECT (trans, "failed to pull a buffer: %s",
gst_flow_get_name (ret));
goto done;
}
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
}
/* The flow of the chain function is the reverse of the
* getrange() function - we have data, feed it to the sub-class
* and then iterate, pushing buffers it generates until it either
* wants more data or returns an error */
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
static GstFlowReturn
gst_base_transform_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
{
GstBaseTransform *trans = GST_BASE_TRANSFORM_CAST (parent);
GstBaseTransformClass *klass = GST_BASE_TRANSFORM_GET_CLASS (trans);
GstBaseTransformPrivate *priv = trans->priv;
GstFlowReturn ret;
GstClockTime position = GST_CLOCK_TIME_NONE;
GstClockTime timestamp, duration;
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
GstBuffer *outbuf = NULL;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
timestamp = GST_BUFFER_TIMESTAMP (buffer);
duration = GST_BUFFER_DURATION (buffer);
/* calculate end position of the incoming buffer */
if (timestamp != GST_CLOCK_TIME_NONE) {
if (duration != GST_CLOCK_TIME_NONE)
position = timestamp + duration;
else
position = timestamp;
}
if (klass->before_transform)
klass->before_transform (trans, buffer);
/* Set discont flag so we can mark the outgoing buffer */
if (GST_BUFFER_IS_DISCONT (buffer)) {
GST_DEBUG_OBJECT (trans, "got DISCONT buffer %p", buffer);
priv->discont = TRUE;
}
/* Takes ownership of input buffer */
ret = klass->submit_input_buffer (trans, priv->discont, buffer);
if (ret != GST_FLOW_OK)
goto done;
do {
outbuf = NULL;
ret = klass->generate_output (trans, &outbuf);
/* outbuf can be NULL, this means a dropped buffer, if we have a buffer but
* GST_BASE_TRANSFORM_FLOW_DROPPED we will not push either. */
if (outbuf != NULL) {
if (ret == GST_FLOW_OK) {
GstClockTime position_out = GST_CLOCK_TIME_NONE;
/* Remember last stop position */
if (position != GST_CLOCK_TIME_NONE &&
trans->segment.format == GST_FORMAT_TIME)
trans->segment.position = position;
if (GST_BUFFER_TIMESTAMP_IS_VALID (outbuf)) {
position_out = GST_BUFFER_TIMESTAMP (outbuf);
if (GST_BUFFER_DURATION_IS_VALID (outbuf))
position_out += GST_BUFFER_DURATION (outbuf);
} else if (position != GST_CLOCK_TIME_NONE) {
position_out = position;
}
if (position_out != GST_CLOCK_TIME_NONE
&& trans->segment.format == GST_FORMAT_TIME)
priv->position_out = position_out;
/* apply DISCONT flag if the buffer is not yet marked as such */
if (trans->priv->discont) {
GST_DEBUG_OBJECT (trans, "we have a pending DISCONT");
if (!GST_BUFFER_IS_DISCONT (outbuf)) {
GST_DEBUG_OBJECT (trans, "marking DISCONT on output buffer");
outbuf = gst_buffer_make_writable (outbuf);
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DISCONT);
}
priv->discont = FALSE;
}
priv->processed++;
ret = gst_pad_push (trans->srcpad, outbuf);
} else {
GST_DEBUG_OBJECT (trans, "we got return %s", gst_flow_get_name (ret));
gst_buffer_unref (outbuf);
}
}
} while (ret == GST_FLOW_OK && outbuf != NULL);
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
done:
/* convert internal flow to OK and mark discont for the next buffer. */
if (ret == GST_BASE_TRANSFORM_FLOW_DROPPED) {
2011-12-01 14:35:26 +00:00
GST_DEBUG_OBJECT (trans, "dropped a buffer, marking DISCONT");
2012-03-16 21:51:14 +00:00
priv->discont = TRUE;
ret = GST_FLOW_OK;
}
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
return ret;
}
static void
gst_base_transform_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstBaseTransform *trans;
trans = GST_BASE_TRANSFORM_CAST (object);
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
switch (prop_id) {
case PROP_QOS:
gst_base_transform_set_qos_enabled (trans, g_value_get_boolean (value));
break;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_base_transform_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstBaseTransform *trans;
trans = GST_BASE_TRANSFORM_CAST (object);
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
switch (prop_id) {
case PROP_QOS:
g_value_set_boolean (value, gst_base_transform_is_qos_enabled (trans));
break;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/* not a vmethod of anything, just an internal method */
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
static gboolean
gst_base_transform_activate (GstBaseTransform * trans, gboolean active)
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
{
GstBaseTransformClass *bclass;
2012-03-16 21:51:14 +00:00
GstBaseTransformPrivate *priv = trans->priv;
gboolean result = TRUE;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
bclass = GST_BASE_TRANSFORM_GET_CLASS (trans);
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
gst/base/gsttypefindhelper.c (gst_type_find_helper): Unref any remaining buffer. Original commit message from CVS: 2005-06-27 Andy Wingo <wingo@pobox.com> * gst/base/gsttypefindhelper.c (gst_type_find_helper): Unref any remaining buffer. * gst/gsttrace.c (gst_alloc_trace_list_sorted): New helper, returns a sorted copy of the trace list. (gst_alloc_trace_print_live): New API, only prints traces with live objects. Sort the list. (gst_alloc_trace_print_all): Sort the list. (gst_alloc_trace_print): Align columns. * gst/elements/gstttypefindelement.c: * gst/elements/gsttee.c: * gst/base/gstbasesrc.c: * gst/base/gstbasesink.c: * gst/base/gstbasetransform.c: * gst/gstqueue.c: Adapt for pad activation changes. * gst/gstpipeline.c (gst_pipeline_init): Unref after parenting sched. (gst_pipeline_dispose): Drop ref on sched. * gst/gstpad.c (gst_pad_init): Set the default activate func. (gst_pad_activate_default): Push mode by default. (pre_activate_switch, post_activate_switch): New stubs, things to do before and after switching activation modes on pads. (gst_pad_set_active): Take a boolean and not a mode, dispatch to the pad's activate function to choose which mode to activate. Shortcut on deactivation and call the right function directly. (gst_pad_activate_pull): New API, (de)activates a pad in pull mode. (gst_pad_activate_push): New API, same for push mode. (gst_pad_set_activate_function) (gst_pad_set_activatepull_function) (gst_pad_set_activatepush_function): Setters for new API. * gst/gstminiobject.c (gst_mini_object_new, gst_mini_object_free): Trace all miniobjects. (gst_mini_object_make_writable): Unref the arg if we copy, like gst_caps_make_writable. * gst/gstmessage.c (_gst_message_initialize): No trace init. * gst/gstghostpad.c (gst_proxy_pad_do_activate) (gst_proxy_pad_do_activatepull, gst_proxy_pad_do_activatepush): Adapt for new pad API. * gst/gstevent.c (_gst_event_initialize): Don't initialize trace. * gst/gstelement.h: * gst/gstelement.c (gst_element_iterate_src_pads) (gst_element_iterate_sink_pads): New API functions. * gst/gstelement.c (iterator_fold_with_resync): New utility, should fold into gstiterator.c in some form. (gst_element_pads_activate): Simplified via use of fold and delegation of decisions to gstpad->activate. * gst/gstbus.c (gst_bus_source_finalize): Set the bus to NULL, help in debugging. * gst/gstbuffer.c (_gst_buffer_initialize): Ref the buffer type class once in init, like gstmessage. Didn't run into this issue but it seems correct. Don't initialize a trace, gstminiobject does that. * check/pipelines/simple_launch_lines.c (test_stop_from_app): New test, runs fakesrc ! fakesink, stopping on ::handoff via a message to the bus. (assert_live_count): New util function, uses alloc traces to check cleanup. * check/gst/gstghostpad.c (test_ghost_pads): More refcount checks. To be modified when unlink drops the internal pad.
2005-06-27 18:35:05 +00:00
if (active) {
GstCaps *incaps, *outcaps;
2012-03-16 21:51:14 +00:00
if (priv->pad_mode == GST_PAD_MODE_NONE && bclass->start)
result &= bclass->start (trans);
incaps = gst_pad_get_current_caps (trans->sinkpad);
outcaps = gst_pad_get_current_caps (trans->srcpad);
GST_OBJECT_LOCK (trans);
if (incaps && outcaps)
2012-03-16 21:51:14 +00:00
priv->have_same_caps =
gst_caps_is_equal (incaps, outcaps) || priv->passthrough;
else
2012-03-16 21:51:14 +00:00
priv->have_same_caps = priv->passthrough;
GST_DEBUG_OBJECT (trans, "have_same_caps %d", priv->have_same_caps);
priv->negotiated = FALSE;
trans->have_segment = FALSE;
gst_segment_init (&trans->segment, GST_FORMAT_UNDEFINED);
2012-03-16 21:51:14 +00:00
priv->position_out = GST_CLOCK_TIME_NONE;
priv->proportion = 1.0;
priv->earliest_time = -1;
priv->discont = FALSE;
priv->processed = 0;
priv->dropped = 0;
GST_OBJECT_UNLOCK (trans);
if (incaps)
gst_caps_unref (incaps);
if (outcaps)
gst_caps_unref (outcaps);
} else {
/* We must make sure streaming has finished before resetting things
* and calling the ::stop vfunc */
GST_PAD_STREAM_LOCK (trans->sinkpad);
GST_PAD_STREAM_UNLOCK (trans->sinkpad);
2012-03-16 21:51:14 +00:00
priv->have_same_caps = FALSE;
/* We can only reset the passthrough mode if the instance told us to
handle it in configure_caps */
if (bclass->passthrough_on_same_caps) {
gst_base_transform_set_passthrough (trans, FALSE);
}
2012-03-16 21:51:14 +00:00
gst_caps_replace (&priv->cache_caps1, NULL);
gst_caps_replace (&priv->cache_caps2, NULL);
/* Make sure any left over buffer is freed */
gst_buffer_replace (&trans->queued_buf, NULL);
2012-03-16 21:51:14 +00:00
if (priv->pad_mode != GST_PAD_MODE_NONE && bclass->stop)
result &= bclass->stop (trans);
gst_base_transform_set_allocation (trans, NULL, NULL, NULL, NULL);
}
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
return result;
}
static gboolean
gst_base_transform_sink_activate_mode (GstPad * pad, GstObject * parent,
GstPadMode mode, gboolean active)
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
{
gboolean result = FALSE;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
GstBaseTransform *trans;
trans = GST_BASE_TRANSFORM_CAST (parent);
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
switch (mode) {
case GST_PAD_MODE_PUSH:
{
result = gst_base_transform_activate (trans, active);
gst/base/gsttypefindhelper.c (gst_type_find_helper): Unref any remaining buffer. Original commit message from CVS: 2005-06-27 Andy Wingo <wingo@pobox.com> * gst/base/gsttypefindhelper.c (gst_type_find_helper): Unref any remaining buffer. * gst/gsttrace.c (gst_alloc_trace_list_sorted): New helper, returns a sorted copy of the trace list. (gst_alloc_trace_print_live): New API, only prints traces with live objects. Sort the list. (gst_alloc_trace_print_all): Sort the list. (gst_alloc_trace_print): Align columns. * gst/elements/gstttypefindelement.c: * gst/elements/gsttee.c: * gst/base/gstbasesrc.c: * gst/base/gstbasesink.c: * gst/base/gstbasetransform.c: * gst/gstqueue.c: Adapt for pad activation changes. * gst/gstpipeline.c (gst_pipeline_init): Unref after parenting sched. (gst_pipeline_dispose): Drop ref on sched. * gst/gstpad.c (gst_pad_init): Set the default activate func. (gst_pad_activate_default): Push mode by default. (pre_activate_switch, post_activate_switch): New stubs, things to do before and after switching activation modes on pads. (gst_pad_set_active): Take a boolean and not a mode, dispatch to the pad's activate function to choose which mode to activate. Shortcut on deactivation and call the right function directly. (gst_pad_activate_pull): New API, (de)activates a pad in pull mode. (gst_pad_activate_push): New API, same for push mode. (gst_pad_set_activate_function) (gst_pad_set_activatepull_function) (gst_pad_set_activatepush_function): Setters for new API. * gst/gstminiobject.c (gst_mini_object_new, gst_mini_object_free): Trace all miniobjects. (gst_mini_object_make_writable): Unref the arg if we copy, like gst_caps_make_writable. * gst/gstmessage.c (_gst_message_initialize): No trace init. * gst/gstghostpad.c (gst_proxy_pad_do_activate) (gst_proxy_pad_do_activatepull, gst_proxy_pad_do_activatepush): Adapt for new pad API. * gst/gstevent.c (_gst_event_initialize): Don't initialize trace. * gst/gstelement.h: * gst/gstelement.c (gst_element_iterate_src_pads) (gst_element_iterate_sink_pads): New API functions. * gst/gstelement.c (iterator_fold_with_resync): New utility, should fold into gstiterator.c in some form. (gst_element_pads_activate): Simplified via use of fold and delegation of decisions to gstpad->activate. * gst/gstbus.c (gst_bus_source_finalize): Set the bus to NULL, help in debugging. * gst/gstbuffer.c (_gst_buffer_initialize): Ref the buffer type class once in init, like gstmessage. Didn't run into this issue but it seems correct. Don't initialize a trace, gstminiobject does that. * check/pipelines/simple_launch_lines.c (test_stop_from_app): New test, runs fakesrc ! fakesink, stopping on ::handoff via a message to the bus. (assert_live_count): New util function, uses alloc traces to check cleanup. * check/gst/gstghostpad.c (test_ghost_pads): More refcount checks. To be modified when unlink drops the internal pad.
2005-06-27 18:35:05 +00:00
if (result)
trans->priv->pad_mode = active ? GST_PAD_MODE_PUSH : GST_PAD_MODE_NONE;
break;
}
default:
result = TRUE;
break;
}
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
return result;
}
static gboolean
gst_base_transform_src_activate_mode (GstPad * pad, GstObject * parent,
GstPadMode mode, gboolean active)
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
{
gboolean result = FALSE;
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
GstBaseTransform *trans;
trans = GST_BASE_TRANSFORM_CAST (parent);
switch (mode) {
case GST_PAD_MODE_PULL:
{
result =
gst_pad_activate_mode (trans->sinkpad, GST_PAD_MODE_PULL, active);
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
if (result)
result &= gst_base_transform_activate (trans, active);
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
if (result)
trans->priv->pad_mode = active ? mode : GST_PAD_MODE_NONE;
break;
}
default:
result = TRUE;
break;
}
gst/: Simplify pad activation. Original commit message from CVS: * gst/base/Makefile.am: * gst/base/README: * gst/base/gstbasesink.c: (gst_basesink_get_type), (gst_basesink_base_init), (gst_basesink_class_init), (gst_basesink_pad_getcaps), (gst_basesink_init), (gst_basesink_activate), (gst_basesink_change_state): * gst/base/gstbasesink.h: * gst/base/gstbasetransform.c: (gst_base_transform_get_type), (gst_base_transform_base_init), (gst_base_transform_finalize), (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps), (gst_base_transform_event), (gst_base_transform_getrange), (gst_base_transform_chain), (gst_base_transform_handle_buffer), (gst_base_transform_set_property), (gst_base_transform_get_property), (gst_base_transform_sink_activate), (gst_base_transform_src_activate), (gst_base_transform_change_state): * gst/base/gstbasetransform.h: * gst/elements/gstidentity.c: (gst_identity_finalize), (gst_identity_class_init), (gst_identity_init), (gst_identity_event), (gst_identity_check_perfect), (gst_identity_transform), (gst_identity_set_property), (gst_identity_get_property), (gst_identity_change_state): * gst/elements/gstidentity.h: * gst/gstelement.c: (gst_element_get_state_func), (gst_element_lost_state), (gst_element_pads_activate): * gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active), (gst_pad_check_pull_range), (gst_pad_pull_range): * gst/gstpad.h: Simplify pad activation. Added function to check if pull_range can be performed. Error out when pulling inactive or flushing pads. Removed const from refcounted types as it does not make sense. Simplify pad templates in basesink Added base class for simple 1-to-1 transforms. Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
return result;
}
/**
* gst_base_transform_set_passthrough:
* @trans: the #GstBaseTransform to set
* @passthrough: boolean indicating passthrough mode.
*
* Set passthrough mode for this filter by default. This is mostly
* useful for filters that do not care about negotiation.
*
* Always %TRUE for filters which don't implement either a transform
* or transform_ip or generate_output method.
*
* MT safe.
*/
void
gst_base_transform_set_passthrough (GstBaseTransform * trans,
gboolean passthrough)
{
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
GstBaseTransformClass *bclass;
g_return_if_fail (GST_IS_BASE_TRANSFORM (trans));
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
bclass = GST_BASE_TRANSFORM_GET_CLASS (trans);
GST_OBJECT_LOCK (trans);
if (!passthrough) {
if (bclass->transform_ip || bclass->transform || (bclass->generate_output
&& bclass->generate_output != default_generate_output))
2012-03-16 21:51:14 +00:00
trans->priv->passthrough = FALSE;
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
} else {
2012-03-16 21:51:14 +00:00
trans->priv->passthrough = TRUE;
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
}
2012-03-16 21:51:14 +00:00
GST_DEBUG_OBJECT (trans, "set passthrough %d", trans->priv->passthrough);
GST_OBJECT_UNLOCK (trans);
}
/**
* gst_base_transform_is_passthrough:
* @trans: the #GstBaseTransform to query
*
* See if @trans is configured as a passthrough transform.
*
2019-06-20 12:04:55 +00:00
* Returns: %TRUE if the transform is configured in passthrough mode.
*
* MT safe.
*/
gboolean
gst_base_transform_is_passthrough (GstBaseTransform * trans)
{
gboolean result;
g_return_val_if_fail (GST_IS_BASE_TRANSFORM (trans), FALSE);
GST_OBJECT_LOCK (trans);
2012-03-16 21:51:14 +00:00
result = trans->priv->passthrough;
GST_OBJECT_UNLOCK (trans);
return result;
}
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
/**
* gst_base_transform_set_in_place:
* @trans: the #GstBaseTransform to modify
* @in_place: Boolean value indicating that we would like to operate
* on in_place buffers.
*
* Determines whether a non-writable buffer will be copied before passing
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
* to the transform_ip function.
*
* * Always %TRUE if no transform function is implemented.
* * Always %FALSE if ONLY transform function is implemented.
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
*
* MT safe.
*/
void
gst_base_transform_set_in_place (GstBaseTransform * trans, gboolean in_place)
{
GstBaseTransformClass *bclass;
g_return_if_fail (GST_IS_BASE_TRANSFORM (trans));
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
bclass = GST_BASE_TRANSFORM_GET_CLASS (trans);
GST_OBJECT_LOCK (trans);
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
if (in_place) {
if (bclass->transform_ip) {
GST_DEBUG_OBJECT (trans, "setting in_place TRUE");
2012-03-16 21:51:14 +00:00
trans->priv->always_in_place = TRUE;
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
}
} else {
if (bclass->transform) {
GST_DEBUG_OBJECT (trans, "setting in_place FALSE");
2012-03-16 21:51:14 +00:00
trans->priv->always_in_place = FALSE;
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
}
}
GST_OBJECT_UNLOCK (trans);
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
}
/**
* gst_base_transform_is_in_place:
* @trans: the #GstBaseTransform to query
*
* See if @trans is configured as a in_place transform.
*
2019-06-20 12:04:55 +00:00
* Returns: %TRUE if the transform is configured in in_place mode.
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
*
* MT safe.
*/
gboolean
gst_base_transform_is_in_place (GstBaseTransform * trans)
{
gboolean result;
g_return_val_if_fail (GST_IS_BASE_TRANSFORM (trans), FALSE);
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
GST_OBJECT_LOCK (trans);
2012-03-16 21:51:14 +00:00
result = trans->priv->always_in_place;
GST_OBJECT_UNLOCK (trans);
check/elements/identity.c: Make the error a little clearer when the test fails because identity made a copy of the bu... Original commit message from CVS: * check/elements/identity.c: (GST_START_TEST): Make the error a little clearer when the test fails because identity made a copy of the buffer. * docs/gst/gstreamer-sections.txt: New symbols in gstbasetransform.h * gst/base/gstbasetransform.c: (gst_base_transform_class_init), (gst_base_transform_init), (gst_base_transform_transform_size), (gst_base_transform_configure_caps), (gst_base_transform_setcaps), (gst_base_transform_default_prepare_buf), (gst_base_transform_get_unit_size), (gst_base_transform_buffer_alloc), (gst_base_transform_handle_buffer), (gst_base_transform_chain), (gst_base_transform_change_state), (gst_base_transform_set_passthrough), (gst_base_transform_set_in_place), (gst_base_transform_is_in_place): * gst/base/gstbasetransform.h: Change BaseTransform to separate in_place operate from same_caps output. in_place implies that the element can perform the transform on incoming buffers in-place, even if the caps on the output are different. Sub-class elements can now implement special buffer allocation methods for outgoing buffers if they wish to. Big documentation addition. * gst/elements/gstcapsfilter.c: (gst_capsfilter_transform_ip): * gst/elements/gstelements.c: Changes for basetransform modifications. * gst/elements/Makefile.am: * gst/elements/gstfdsrc.c: (gst_fdsrc_init), (gst_fdsrc_create): Compile fix. Extra debug output.
2005-09-09 17:42:20 +00:00
return result;
}
/**
* gst_base_transform_update_qos:
* @trans: a #GstBaseTransform
* @proportion: the proportion
* @diff: the diff against the clock
* @timestamp: the timestamp of the buffer generating the QoS expressed in
* running_time.
*
* Set the QoS parameters in the transform. This function is called internally
* when a QOS event is received but subclasses can provide custom information
* when needed.
*
* MT safe.
*/
void
gst_base_transform_update_qos (GstBaseTransform * trans,
gdouble proportion, GstClockTimeDiff diff, GstClockTime timestamp)
{
g_return_if_fail (GST_IS_BASE_TRANSFORM (trans));
g_return_if_fail (GST_CLOCK_TIME_IS_VALID (timestamp));
GST_CAT_DEBUG_OBJECT (GST_CAT_QOS, trans,
"qos: proportion: %lf, diff %" G_GINT64_FORMAT ", timestamp %"
GST_TIME_FORMAT, proportion, diff, GST_TIME_ARGS (timestamp));
GST_OBJECT_LOCK (trans);
trans->priv->proportion = proportion;
trans->priv->earliest_time = timestamp + diff;
GST_OBJECT_UNLOCK (trans);
}
/**
* gst_base_transform_set_qos_enabled:
* @trans: a #GstBaseTransform
* @enabled: new state
*
* Enable or disable QoS handling in the transform.
*
* MT safe.
*/
void
gst_base_transform_set_qos_enabled (GstBaseTransform * trans, gboolean enabled)
{
g_return_if_fail (GST_IS_BASE_TRANSFORM (trans));
GST_CAT_DEBUG_OBJECT (GST_CAT_QOS, trans, "enabled: %d", enabled);
GST_OBJECT_LOCK (trans);
trans->priv->qos_enabled = enabled;
GST_OBJECT_UNLOCK (trans);
}
/**
* gst_base_transform_is_qos_enabled:
* @trans: a #GstBaseTransform
*
* Queries if the transform will handle QoS.
*
* Returns: %TRUE if QoS is enabled.
*
* MT safe.
*/
gboolean
gst_base_transform_is_qos_enabled (GstBaseTransform * trans)
{
gboolean result;
g_return_val_if_fail (GST_IS_BASE_TRANSFORM (trans), FALSE);
GST_OBJECT_LOCK (trans);
result = trans->priv->qos_enabled;
GST_OBJECT_UNLOCK (trans);
return result;
}
/**
* gst_base_transform_set_gap_aware:
* @trans: a #GstBaseTransform
* @gap_aware: New state
*
* If @gap_aware is %FALSE (the default), output buffers will have the
* %GST_BUFFER_FLAG_GAP flag unset.
*
* If set to %TRUE, the element must handle output buffers with this flag set
* correctly, i.e. it can assume that the buffer contains neutral data but must
* unset the flag if the output is no neutral data.
*
* MT safe.
*/
void
gst_base_transform_set_gap_aware (GstBaseTransform * trans, gboolean gap_aware)
{
g_return_if_fail (GST_IS_BASE_TRANSFORM (trans));
GST_OBJECT_LOCK (trans);
trans->priv->gap_aware = gap_aware;
GST_DEBUG_OBJECT (trans, "set gap aware %d", trans->priv->gap_aware);
GST_OBJECT_UNLOCK (trans);
}
/**
* gst_base_transform_set_prefer_passthrough:
* @trans: a #GstBaseTransform
* @prefer_passthrough: New state
*
* If @prefer_passthrough is %TRUE (the default), @trans will check and
* prefer passthrough caps from the list of caps returned by the
* transform_caps vmethod.
*
* If set to %FALSE, the element must order the caps returned from the
* transform_caps function in such a way that the preferred format is
* first in the list. This can be interesting for transforms that can do
* passthrough transforms but prefer to do something else, like a
* capsfilter.
*
* MT safe.
*
* Since: 1.0.1
*/
void
gst_base_transform_set_prefer_passthrough (GstBaseTransform * trans,
gboolean prefer_passthrough)
{
g_return_if_fail (GST_IS_BASE_TRANSFORM (trans));
GST_OBJECT_LOCK (trans);
trans->priv->prefer_passthrough = prefer_passthrough;
GST_DEBUG_OBJECT (trans, "prefer passthrough %d", prefer_passthrough);
GST_OBJECT_UNLOCK (trans);
}
/**
* gst_base_transform_reconfigure_sink:
* @trans: a #GstBaseTransform
*
* Instructs @trans to request renegotiation upstream. This function is
* typically called after properties on the transform were set that
* influence the input format.
*/
void
gst_base_transform_reconfigure_sink (GstBaseTransform * trans)
{
g_return_if_fail (GST_IS_BASE_TRANSFORM (trans));
/* push the renegotiate event */
if (!gst_pad_push_event (GST_BASE_TRANSFORM_SINK_PAD (trans),
gst_event_new_reconfigure ()))
GST_DEBUG_OBJECT (trans, "Renegotiate event wasn't handled");
}
/**
* gst_base_transform_reconfigure_src:
* @trans: a #GstBaseTransform
*
* Instructs @trans to renegotiate a new downstream transform on the next
* buffer. This function is typically called after properties on the transform
* were set that influence the output format.
*/
void
gst_base_transform_reconfigure_src (GstBaseTransform * trans)
{
g_return_if_fail (GST_IS_BASE_TRANSFORM (trans));
gst_pad_mark_reconfigure (trans->srcpad);
}
/**
* gst_base_transform_get_buffer_pool:
* @trans: a #GstBaseTransform
*
* Returns: (nullable) (transfer full): the instance of the #GstBufferPool used
2019-06-20 12:04:55 +00:00
* by @trans; free it after use
*/
GstBufferPool *
gst_base_transform_get_buffer_pool (GstBaseTransform * trans)
{
g_return_val_if_fail (GST_IS_BASE_TRANSFORM (trans), NULL);
if (trans->priv->pool)
return gst_object_ref (trans->priv->pool);
return NULL;
}
/**
* gst_base_transform_get_allocator:
* @trans: a #GstBaseTransform
* @allocator: (out) (optional) (nullable) (transfer full): the #GstAllocator
* used
* @params: (out caller-allocates) (optional): the #GstAllocationParams of @allocator
*
2019-06-20 12:04:55 +00:00
* Lets #GstBaseTransform sub-classes know the memory @allocator
* used by the base class and its @params.
*
2019-06-20 12:04:55 +00:00
* Unref the @allocator after use.
*/
void
gst_base_transform_get_allocator (GstBaseTransform * trans,
GstAllocator ** allocator, GstAllocationParams * params)
{
g_return_if_fail (GST_IS_BASE_TRANSFORM (trans));
if (allocator)
*allocator = trans->priv->allocator ?
gst_object_ref (trans->priv->allocator) : NULL;
if (params)
*params = trans->priv->params;
}
/**
* gst_base_transform_update_src_caps:
* @trans: a #GstBaseTransform
* @updated_caps: An updated version of the srcpad caps to be pushed
* downstream
*
2019-06-20 12:04:55 +00:00
* Updates the srcpad caps and sends the caps downstream. This function
* can be used by subclasses when they have already negotiated their caps
* but found a change in them (or computed new information). This way,
* they can notify downstream about that change without losing any
* buffer.
*
2019-06-20 12:04:55 +00:00
* Returns: %TRUE if the caps could be sent downstream %FALSE otherwise
*
* Since: 1.6
*/
gboolean
gst_base_transform_update_src_caps (GstBaseTransform * trans,
GstCaps * updated_caps)
{
g_return_val_if_fail (GST_IS_BASE_TRANSFORM (trans), FALSE);
if (gst_pad_push_event (GST_BASE_TRANSFORM_SRC_PAD (trans),
gst_event_new_caps (updated_caps))) {
gst_pad_mark_reconfigure (trans->srcpad);
return TRUE;
}
return FALSE;
}