2000-12-29 05:38:06 +00:00
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/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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*
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2005-10-15 15:30:24 +00:00
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* gstidentity.h:
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2000-01-30 09:03:00 +00:00
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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2012-11-03 20:44:48 +00:00
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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2000-01-30 09:03:00 +00:00
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*/
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#ifndef __GST_IDENTITY_H__
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#define __GST_IDENTITY_H__
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#include <gst/gst.h>
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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
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#include <gst/base/gstbasetransform.h>
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2000-01-30 09:03:00 +00:00
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2002-10-30 09:17:34 +00:00
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G_BEGIN_DECLS
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2004-03-15 14:43:35 +00:00
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2000-01-30 09:03:00 +00:00
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#define GST_TYPE_IDENTITY \
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(gst_identity_get_type())
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#define GST_IDENTITY(obj) \
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2001-06-25 01:20:11 +00:00
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_IDENTITY,GstIdentity))
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2000-01-30 09:03:00 +00:00
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#define GST_IDENTITY_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_IDENTITY,GstIdentityClass))
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2000-01-30 09:03:00 +00:00
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#define GST_IS_IDENTITY(obj) \
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2001-06-25 01:20:11 +00:00
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_IDENTITY))
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2006-06-01 18:22:14 +00:00
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#define GST_IS_IDENTITY_CLASS(klass) \
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2001-06-25 01:20:11 +00:00
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_IDENTITY))
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2004-03-15 14:43:35 +00:00
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2000-01-30 09:03:00 +00:00
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typedef struct _GstIdentity GstIdentity;
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typedef struct _GstIdentityClass GstIdentityClass;
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2006-01-04 12:41:35 +00:00
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/**
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* GstIdentity:
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*
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* Opaque #GstIdentity data structure
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*/
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2004-03-15 14:43:35 +00:00
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struct _GstIdentity {
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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
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GstBaseTransform element;
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2004-03-15 14:43:35 +00:00
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2006-01-04 12:41:35 +00:00
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/*< private >*/
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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
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GstClockID clock_id;
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2017-08-16 19:47:31 +00:00
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gboolean flushing;
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2004-03-15 14:43:35 +00:00
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gint error_after;
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gfloat drop_probability;
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gst/elements/: Added datarate properties to limit the datarate.
Original commit message from CVS:
* gst/elements/gstfakesrc.c: (gst_fakesrc_class_init),
(gst_fakesrc_init), (gst_fakesrc_set_clock),
(gst_fakesrc_set_property), (gst_fakesrc_get_property),
(gst_fakesrc_get), (gst_fakesrc_change_state):
* gst/elements/gstfakesrc.h:
* gst/elements/gstidentity.c: (gst_identity_class_init),
(gst_identity_init), (gst_identity_chain),
(gst_identity_set_property), (gst_identity_get_property),
(gst_identity_change_state):
* gst/elements/gstidentity.h:
Added datarate properties to limit the datarate.
2004-09-03 11:40:35 +00:00
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gint datarate;
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2004-03-15 14:43:35 +00:00
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guint sleep_time;
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gboolean silent;
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gboolean dump;
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2004-06-18 14:05:55 +00:00
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gboolean sync;
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2007-03-09 14:20:25 +00:00
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gboolean check_imperfect_timestamp;
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gboolean check_imperfect_offset;
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gst/base/gstbasetransform.c: The event virtual method is now properly implemented, with a default handler
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_class_init),
(gst_base_transform_event), (gst_base_transform_eventfunc):
The event virtual method is now properly implemented, with a default
handler
Sub classes should call the parent_class event method. They should
return FALSE if they had a problem handling the given event, or don't
want GstBaseTransform to send that even downstream
* gst/elements/gstidentity.c: (gst_identity_class_init),
(gst_identity_init), (gst_identity_event),
(gst_identity_transform_ip), (gst_identity_set_property),
(gst_identity_get_property):
* gst/elements/gstidentity.h:
Added the single-segment boolean property.
If set to TRUE, it will output a single segment of data, starting from
0, will eat up all incoming newsegment, and modify the timestamp of the
buffers accordingly
2005-11-29 14:47:07 +00:00
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gboolean single_segment;
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2015-06-18 20:56:53 +00:00
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GstBufferFlags drop_buffer_flags;
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2004-06-26 13:08:03 +00:00
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GstClockTime prev_timestamp;
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GstClockTime prev_duration;
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2007-03-07 16:58:42 +00:00
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guint64 prev_offset;
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2004-06-26 13:08:03 +00:00
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guint64 prev_offset_end;
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2004-03-15 14:43:35 +00:00
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gchar *last_message;
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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
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guint64 offset;
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2007-11-21 13:27:50 +00:00
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gboolean signal_handoffs;
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2015-04-20 23:24:45 +00:00
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GstClockTime upstream_latency;
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2015-04-20 23:31:37 +00:00
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GCond blocked_cond;
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gboolean blocked;
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2015-07-14 13:11:11 +00:00
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GstClockTimeDiff ts_offset;
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2017-09-06 14:01:58 +00:00
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gboolean drop_allocation;
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2000-01-30 09:03:00 +00:00
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};
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2004-03-15 14:43:35 +00:00
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struct _GstIdentityClass {
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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
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GstBaseTransformClass parent_class;
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2001-07-11 15:51:40 +00:00
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/* signals */
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2004-03-15 14:43:35 +00:00
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void (*handoff) (GstElement *element, GstBuffer *buf);
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2000-01-30 09:03:00 +00:00
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};
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2012-07-14 19:00:30 +00:00
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G_GNUC_INTERNAL GType gst_identity_get_type (void);
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2000-01-30 09:03:00 +00:00
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2002-10-30 09:17:34 +00:00
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G_END_DECLS
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2004-03-15 14:43:35 +00:00
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2000-01-30 09:03:00 +00:00
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#endif /* __GST_IDENTITY_H__ */
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