gstreamer/plugins/elements/gstidentity.c

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/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
* 2005 Wim Taymans <wim@fluendo.com>
*
* gstidentity.c:
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <stdlib.h>
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "../gst-i18n-lib.h"
#include "gstidentity.h"
#include <gst/gstmarshal.h>
static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
GST_DEBUG_CATEGORY_STATIC (gst_identity_debug);
#define GST_CAT_DEFAULT gst_identity_debug
GstElementDetails gst_identity_details = GST_ELEMENT_DETAILS ("Identity",
"Generic",
"Pass data without modification",
"Erik Walthinsen <omega@cse.ogi.edu>");
/* Identity signals and args */
enum
{
SIGNAL_HANDOFF,
/* FILL ME */
LAST_SIGNAL
};
#define DEFAULT_LOOP_BASED FALSE
#define DEFAULT_SLEEP_TIME 0
#define DEFAULT_DUPLICATE 1
#define DEFAULT_ERROR_AFTER -1
#define DEFAULT_DROP_PROBABILITY 0.0
#define DEFAULT_DATARATE 0
#define DEFAULT_SILENT FALSE
#define DEFAULT_DUMP FALSE
#define DEFAULT_SYNC FALSE
#define DEFAULT_CHECK_PERFECT FALSE
enum
{
ARG_0,
ARG_LOOP_BASED,
ARG_SLEEP_TIME,
ARG_DUPLICATE,
ARG_ERROR_AFTER,
ARG_DROP_PROBABILITY,
ARG_DATARATE,
ARG_SILENT,
ARG_LAST_MESSAGE,
ARG_DUMP,
ARG_SYNC,
ARG_CHECK_PERFECT
};
#define _do_init(bla) \
GST_DEBUG_CATEGORY_INIT (gst_identity_debug, "identity", 0, "identity element");
GST_BOILERPLATE_FULL (GstIdentity, gst_identity, GstElement, GST_TYPE_ELEMENT,
_do_init);
static void gst_identity_finalize (GObject * object);
static void gst_identity_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_identity_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstElementStateReturn gst_identity_change_state (GstElement * element);
static gboolean gst_identity_event (GstPad * pad, GstEvent * event);
static GstFlowReturn gst_identity_chain (GstPad * pad, GstBuffer * buffer);
static GstFlowReturn gst_identity_getrange (GstPad * pad, guint64 offset,
guint length, GstBuffer ** buffer);
static void gst_identity_set_clock (GstElement * element, GstClock * clock);
testsuite/caps/value_serialize.c: merge from HEAD. Original commit message from CVS: 2005-02-10 Andy Wingo <wingo@pobox.com> * testsuite/caps/value_serialize.c: merge from HEAD. * testsuite/caps/subtract.c: * testsuite/caps/filtercaps.c: * testsuite/caps/enumcaps.c: * testsuite/caps/deserialize.c: * testsuite/caps/caps.c: * testsuite/caps/audioscale.c: Unref caps, not free. * testsuite/caps/caps_strings: Merged from HEAD. * gst/elements/gstidentity.c (gst_identity_proxy_getcaps): Getcaps implementation for identity. * gst/gststructure.h * gst/gststructure.c (gst_caps_structure_fixate_field_nearest_double): (gst_caps_structure_fixate_field_nearest_int): Moved from gstcaps.c because we need the private IS_MUTABLE macro. (IS_MUTABLE): New macro, determines if a structure is mutable or not. (gst_structure_free): Don't allow free while holding a pointer to a parent's refcount. (gst_structure_set_name): Check for writability. (gst_structure_id_set_value): Same. (gst_structure_set_value): Same. (gst_structure_set_valist): Same. (gst_structure_remove_field): Same. (gst_structure_remove_all_fields): Same. (gst_structure_map_in_place): New routine, like _foreach but allows the function to mutate the value (via a non-const prototype). Check for writability. (gst_structure_foreach): Redefine to only take non-mutating functions. * gst/gstcaps.c (IS_WRITABLE): New macro, returns TRUE if the caps are writable. (gst_caps_copy): Add some docs about mutability, etc. (_gst_caps_free): Set the parent refcount pointer on structures to NULL before freeing them. (gst_caps_ref): Document. (gst_caps_make_writable): Doc. (gst_caps_make_writable): Changed to make_writable, get_writable sounds too much like retrieving a property. (gst_caps_copy_1): Removed, not very useful. (gst_caps_ref_by_count): Removed, no need to have something GLib doesn't. (gst_caps_copy_conditional): Ref instead of copying. (gst_static_caps_get): Retain a reference to the returned caps, so that the static caps will remain immutable. (gst_caps_remove_and_get_structure): Set the parent refcount to NULL when removing the structure. (gst_caps_append): Fix to work with structure parent refcounts. Check for writability. (gst_caps_append_structure): Check for writability, work with parent refcounts. (gst_caps_remove_structure): Check for writability. (gst_caps_set_simple): Check for writability. (gst_caps_set_simple_valist): Check for writability. (gst_caps_is_fixed_foreach): Update for non-mutating foreach. (gst_structure_is_equal_foreach): Same. (gst_caps_structure_intersect_field): Same. (gst_caps_structure_subtract_field): Same. Make static. (gst_caps_normalize_foreach): Same. (gst_caps_structure_figure_out_union): Same. (gst_caps_switch_structures): New static function, switches out structures inside a caps, taking care of parent_refcount setting. * gst/gstpad.c (gst_pad_get_allowed_caps): Remove the restriction on only src pads, wim von masterhack claims it was bogus. * testsuite/caps/Makefile.am * testsuite/caps/app_fixate.c: Removed app_fixate test, things are done a bit differently in THREADED.
2005-02-10 19:40:23 +00:00
static GstCaps *gst_identity_proxy_getcaps (GstPad * pad);
static guint gst_identity_signals[LAST_SIGNAL] = { 0 };
static void
gst_identity_base_init (gpointer g_class)
{
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&srctemplate));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&sinktemplate));
gst_element_class_set_details (gstelement_class, &gst_identity_details);
}
static void
gst_identity_finalize (GObject * object)
{
GstIdentity *identity;
identity = GST_IDENTITY (object);
g_free (identity->last_message);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_identity_class_init (GstIdentityClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = G_OBJECT_CLASS (klass);
gstelement_class = GST_ELEMENT_CLASS (klass);
gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_identity_set_property);
gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_identity_get_property);
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LOOP_BASED,
g_param_spec_boolean ("loop-based", "Loop-based",
"Set to TRUE to use loop-based rather than chain-based scheduling",
DEFAULT_LOOP_BASED, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SLEEP_TIME,
g_param_spec_uint ("sleep-time", "Sleep time",
"Microseconds to sleep between processing", 0, G_MAXUINT,
DEFAULT_SLEEP_TIME, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DUPLICATE,
g_param_spec_uint ("duplicate", "Duplicate Buffers",
"Push the buffers N times", 0, G_MAXUINT, DEFAULT_DUPLICATE,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ERROR_AFTER,
g_param_spec_int ("error_after", "Error After", "Error after N buffers",
G_MININT, G_MAXINT, DEFAULT_ERROR_AFTER, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DROP_PROBABILITY,
g_param_spec_float ("drop_probability", "Drop Probability",
"The Probability a buffer is dropped", 0.0, 1.0,
DEFAULT_DROP_PROBABILITY, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DATARATE,
g_param_spec_int ("datarate", "Datarate",
"(Re)timestamps buffers with number of bytes per second (0 = inactive)",
0, G_MAXINT, DEFAULT_DATARATE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SILENT,
g_param_spec_boolean ("silent", "silent", "silent", DEFAULT_SILENT,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LAST_MESSAGE,
g_param_spec_string ("last-message", "last-message", "last-message", NULL,
G_PARAM_READABLE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DUMP,
g_param_spec_boolean ("dump", "Dump", "Dump buffer contents",
DEFAULT_DUMP, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SYNC,
g_param_spec_boolean ("sync", "Synchronize",
"Synchronize to pipeline clock", DEFAULT_SYNC, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CHECK_PERFECT,
g_param_spec_boolean ("check-perfect", "Check For Perfect Stream",
"Verify that the stream is time- and data-contiguous",
DEFAULT_CHECK_PERFECT, G_PARAM_READWRITE));
gst_identity_signals[SIGNAL_HANDOFF] =
g_signal_new ("handoff", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstIdentityClass, handoff), NULL, NULL,
gst_marshal_VOID__BOXED, G_TYPE_NONE, 1,
GST_TYPE_BUFFER | G_SIGNAL_TYPE_STATIC_SCOPE);
gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_identity_finalize);
gstelement_class->set_clock = GST_DEBUG_FUNCPTR (gst_identity_set_clock);
gstelement_class->change_state =
GST_DEBUG_FUNCPTR (gst_identity_change_state);
}
static void
gst_identity_init (GstIdentity * identity)
{
identity->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get (&sinktemplate),
"sink");
gst_element_add_pad (GST_ELEMENT (identity), identity->sinkpad);
gst_pad_set_chain_function (identity->sinkpad,
GST_DEBUG_FUNCPTR (gst_identity_chain));
testsuite/caps/value_serialize.c: merge from HEAD. Original commit message from CVS: 2005-02-10 Andy Wingo <wingo@pobox.com> * testsuite/caps/value_serialize.c: merge from HEAD. * testsuite/caps/subtract.c: * testsuite/caps/filtercaps.c: * testsuite/caps/enumcaps.c: * testsuite/caps/deserialize.c: * testsuite/caps/caps.c: * testsuite/caps/audioscale.c: Unref caps, not free. * testsuite/caps/caps_strings: Merged from HEAD. * gst/elements/gstidentity.c (gst_identity_proxy_getcaps): Getcaps implementation for identity. * gst/gststructure.h * gst/gststructure.c (gst_caps_structure_fixate_field_nearest_double): (gst_caps_structure_fixate_field_nearest_int): Moved from gstcaps.c because we need the private IS_MUTABLE macro. (IS_MUTABLE): New macro, determines if a structure is mutable or not. (gst_structure_free): Don't allow free while holding a pointer to a parent's refcount. (gst_structure_set_name): Check for writability. (gst_structure_id_set_value): Same. (gst_structure_set_value): Same. (gst_structure_set_valist): Same. (gst_structure_remove_field): Same. (gst_structure_remove_all_fields): Same. (gst_structure_map_in_place): New routine, like _foreach but allows the function to mutate the value (via a non-const prototype). Check for writability. (gst_structure_foreach): Redefine to only take non-mutating functions. * gst/gstcaps.c (IS_WRITABLE): New macro, returns TRUE if the caps are writable. (gst_caps_copy): Add some docs about mutability, etc. (_gst_caps_free): Set the parent refcount pointer on structures to NULL before freeing them. (gst_caps_ref): Document. (gst_caps_make_writable): Doc. (gst_caps_make_writable): Changed to make_writable, get_writable sounds too much like retrieving a property. (gst_caps_copy_1): Removed, not very useful. (gst_caps_ref_by_count): Removed, no need to have something GLib doesn't. (gst_caps_copy_conditional): Ref instead of copying. (gst_static_caps_get): Retain a reference to the returned caps, so that the static caps will remain immutable. (gst_caps_remove_and_get_structure): Set the parent refcount to NULL when removing the structure. (gst_caps_append): Fix to work with structure parent refcounts. Check for writability. (gst_caps_append_structure): Check for writability, work with parent refcounts. (gst_caps_remove_structure): Check for writability. (gst_caps_set_simple): Check for writability. (gst_caps_set_simple_valist): Check for writability. (gst_caps_is_fixed_foreach): Update for non-mutating foreach. (gst_structure_is_equal_foreach): Same. (gst_caps_structure_intersect_field): Same. (gst_caps_structure_subtract_field): Same. Make static. (gst_caps_normalize_foreach): Same. (gst_caps_structure_figure_out_union): Same. (gst_caps_switch_structures): New static function, switches out structures inside a caps, taking care of parent_refcount setting. * gst/gstpad.c (gst_pad_get_allowed_caps): Remove the restriction on only src pads, wim von masterhack claims it was bogus. * testsuite/caps/Makefile.am * testsuite/caps/app_fixate.c: Removed app_fixate test, things are done a bit differently in THREADED.
2005-02-10 19:40:23 +00:00
gst_pad_set_getcaps_function (identity->sinkpad,
GST_DEBUG_FUNCPTR (gst_identity_proxy_getcaps));
gst_pad_set_event_function (identity->sinkpad,
GST_DEBUG_FUNCPTR (gst_identity_event));
identity->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get (&srctemplate),
"src");
testsuite/caps/value_serialize.c: merge from HEAD. Original commit message from CVS: 2005-02-10 Andy Wingo <wingo@pobox.com> * testsuite/caps/value_serialize.c: merge from HEAD. * testsuite/caps/subtract.c: * testsuite/caps/filtercaps.c: * testsuite/caps/enumcaps.c: * testsuite/caps/deserialize.c: * testsuite/caps/caps.c: * testsuite/caps/audioscale.c: Unref caps, not free. * testsuite/caps/caps_strings: Merged from HEAD. * gst/elements/gstidentity.c (gst_identity_proxy_getcaps): Getcaps implementation for identity. * gst/gststructure.h * gst/gststructure.c (gst_caps_structure_fixate_field_nearest_double): (gst_caps_structure_fixate_field_nearest_int): Moved from gstcaps.c because we need the private IS_MUTABLE macro. (IS_MUTABLE): New macro, determines if a structure is mutable or not. (gst_structure_free): Don't allow free while holding a pointer to a parent's refcount. (gst_structure_set_name): Check for writability. (gst_structure_id_set_value): Same. (gst_structure_set_value): Same. (gst_structure_set_valist): Same. (gst_structure_remove_field): Same. (gst_structure_remove_all_fields): Same. (gst_structure_map_in_place): New routine, like _foreach but allows the function to mutate the value (via a non-const prototype). Check for writability. (gst_structure_foreach): Redefine to only take non-mutating functions. * gst/gstcaps.c (IS_WRITABLE): New macro, returns TRUE if the caps are writable. (gst_caps_copy): Add some docs about mutability, etc. (_gst_caps_free): Set the parent refcount pointer on structures to NULL before freeing them. (gst_caps_ref): Document. (gst_caps_make_writable): Doc. (gst_caps_make_writable): Changed to make_writable, get_writable sounds too much like retrieving a property. (gst_caps_copy_1): Removed, not very useful. (gst_caps_ref_by_count): Removed, no need to have something GLib doesn't. (gst_caps_copy_conditional): Ref instead of copying. (gst_static_caps_get): Retain a reference to the returned caps, so that the static caps will remain immutable. (gst_caps_remove_and_get_structure): Set the parent refcount to NULL when removing the structure. (gst_caps_append): Fix to work with structure parent refcounts. Check for writability. (gst_caps_append_structure): Check for writability, work with parent refcounts. (gst_caps_remove_structure): Check for writability. (gst_caps_set_simple): Check for writability. (gst_caps_set_simple_valist): Check for writability. (gst_caps_is_fixed_foreach): Update for non-mutating foreach. (gst_structure_is_equal_foreach): Same. (gst_caps_structure_intersect_field): Same. (gst_caps_structure_subtract_field): Same. Make static. (gst_caps_normalize_foreach): Same. (gst_caps_structure_figure_out_union): Same. (gst_caps_switch_structures): New static function, switches out structures inside a caps, taking care of parent_refcount setting. * gst/gstpad.c (gst_pad_get_allowed_caps): Remove the restriction on only src pads, wim von masterhack claims it was bogus. * testsuite/caps/Makefile.am * testsuite/caps/app_fixate.c: Removed app_fixate test, things are done a bit differently in THREADED.
2005-02-10 19:40:23 +00:00
gst_pad_set_getcaps_function (identity->srcpad,
GST_DEBUG_FUNCPTR (gst_identity_proxy_getcaps));
gst_pad_set_getrange_function (identity->srcpad,
GST_DEBUG_FUNCPTR (gst_identity_getrange));
gst_element_add_pad (GST_ELEMENT (identity), identity->srcpad);
identity->loop_based = DEFAULT_LOOP_BASED;
identity->sleep_time = DEFAULT_SLEEP_TIME;
identity->duplicate = DEFAULT_DUPLICATE;
identity->error_after = DEFAULT_ERROR_AFTER;
identity->drop_probability = DEFAULT_DROP_PROBABILITY;
identity->datarate = DEFAULT_DATARATE;
identity->silent = DEFAULT_SILENT;
identity->sync = DEFAULT_SYNC;
identity->check_perfect = DEFAULT_CHECK_PERFECT;
identity->dump = DEFAULT_DUMP;
identity->last_message = NULL;
identity->srccaps = NULL;
}
static void
gst_identity_set_clock (GstElement * element, GstClock * clock)
{
GstIdentity *identity = GST_IDENTITY (element);
gst_object_replace ((GstObject **) & identity->clock, (GstObject *) clock);
}
testsuite/caps/value_serialize.c: merge from HEAD. Original commit message from CVS: 2005-02-10 Andy Wingo <wingo@pobox.com> * testsuite/caps/value_serialize.c: merge from HEAD. * testsuite/caps/subtract.c: * testsuite/caps/filtercaps.c: * testsuite/caps/enumcaps.c: * testsuite/caps/deserialize.c: * testsuite/caps/caps.c: * testsuite/caps/audioscale.c: Unref caps, not free. * testsuite/caps/caps_strings: Merged from HEAD. * gst/elements/gstidentity.c (gst_identity_proxy_getcaps): Getcaps implementation for identity. * gst/gststructure.h * gst/gststructure.c (gst_caps_structure_fixate_field_nearest_double): (gst_caps_structure_fixate_field_nearest_int): Moved from gstcaps.c because we need the private IS_MUTABLE macro. (IS_MUTABLE): New macro, determines if a structure is mutable or not. (gst_structure_free): Don't allow free while holding a pointer to a parent's refcount. (gst_structure_set_name): Check for writability. (gst_structure_id_set_value): Same. (gst_structure_set_value): Same. (gst_structure_set_valist): Same. (gst_structure_remove_field): Same. (gst_structure_remove_all_fields): Same. (gst_structure_map_in_place): New routine, like _foreach but allows the function to mutate the value (via a non-const prototype). Check for writability. (gst_structure_foreach): Redefine to only take non-mutating functions. * gst/gstcaps.c (IS_WRITABLE): New macro, returns TRUE if the caps are writable. (gst_caps_copy): Add some docs about mutability, etc. (_gst_caps_free): Set the parent refcount pointer on structures to NULL before freeing them. (gst_caps_ref): Document. (gst_caps_make_writable): Doc. (gst_caps_make_writable): Changed to make_writable, get_writable sounds too much like retrieving a property. (gst_caps_copy_1): Removed, not very useful. (gst_caps_ref_by_count): Removed, no need to have something GLib doesn't. (gst_caps_copy_conditional): Ref instead of copying. (gst_static_caps_get): Retain a reference to the returned caps, so that the static caps will remain immutable. (gst_caps_remove_and_get_structure): Set the parent refcount to NULL when removing the structure. (gst_caps_append): Fix to work with structure parent refcounts. Check for writability. (gst_caps_append_structure): Check for writability, work with parent refcounts. (gst_caps_remove_structure): Check for writability. (gst_caps_set_simple): Check for writability. (gst_caps_set_simple_valist): Check for writability. (gst_caps_is_fixed_foreach): Update for non-mutating foreach. (gst_structure_is_equal_foreach): Same. (gst_caps_structure_intersect_field): Same. (gst_caps_structure_subtract_field): Same. Make static. (gst_caps_normalize_foreach): Same. (gst_caps_structure_figure_out_union): Same. (gst_caps_switch_structures): New static function, switches out structures inside a caps, taking care of parent_refcount setting. * gst/gstpad.c (gst_pad_get_allowed_caps): Remove the restriction on only src pads, wim von masterhack claims it was bogus. * testsuite/caps/Makefile.am * testsuite/caps/app_fixate.c: Removed app_fixate test, things are done a bit differently in THREADED.
2005-02-10 19:40:23 +00:00
static GstCaps *
gst_identity_proxy_getcaps (GstPad * pad)
{
GstPad *otherpad;
GstIdentity *identity = GST_IDENTITY (GST_OBJECT_PARENT (pad));
otherpad = pad == identity->srcpad ? identity->sinkpad : identity->srcpad;
return gst_pad_peer_get_caps (otherpad);
}
static gboolean
gst_identity_event (GstPad * pad, GstEvent * event)
{
GstIdentity *identity;
identity = GST_IDENTITY (GST_PAD_PARENT (pad));
if (!identity->silent) {
g_free (identity->last_message);
identity->last_message =
g_strdup_printf ("chain ******* (%s:%s)E (type: %d) %p",
GST_DEBUG_PAD_NAME (pad), GST_EVENT_TYPE (event), event);
g_object_notify (G_OBJECT (identity), "last_message");
}
return gst_pad_push_event (identity->srcpad, event);
}
static GstFlowReturn
gst_identity_getrange (GstPad * pad, guint64 offset,
guint length, GstBuffer ** buffer)
{
GstIdentity *identity;
identity = GST_IDENTITY (GST_PAD_PARENT (pad));
return gst_pad_pull_range (identity->sinkpad, offset, length, buffer);
}
static GstFlowReturn
gst_identity_chain (GstPad * pad, GstBuffer * buffer)
{
GstBuffer *buf = GST_BUFFER (buffer);
GstIdentity *identity;
GstFlowReturn result = GST_FLOW_OK;
guint i;
g_return_val_if_fail (pad != NULL, GST_FLOW_ERROR);
g_return_val_if_fail (GST_IS_PAD (pad), GST_FLOW_ERROR);
g_return_val_if_fail (buf != NULL, GST_FLOW_ERROR);
identity = GST_IDENTITY (GST_PAD_PARENT (pad));
/* see if we need to do perfect stream checking */
/* invalid timestamp drops us out of check. FIXME: maybe warn ? */
if (identity->check_perfect &&
GST_BUFFER_TIMESTAMP (buf) != GST_CLOCK_TIME_NONE) {
/* check if we had a previous buffer to compare to */
if (identity->prev_timestamp != GST_CLOCK_TIME_NONE) {
if (identity->prev_timestamp + identity->prev_duration !=
GST_BUFFER_TIMESTAMP (buf)) {
GST_WARNING_OBJECT (identity,
"Buffer not time-contiguous with previous one: " "prev ts %"
GST_TIME_FORMAT ", prev dur %" GST_TIME_FORMAT ", new ts %"
GST_TIME_FORMAT, GST_TIME_ARGS (identity->prev_timestamp),
GST_TIME_ARGS (identity->prev_duration),
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
}
if (identity->prev_offset_end != GST_BUFFER_OFFSET (buf)) {
GST_WARNING_OBJECT (identity,
"Buffer not data-contiguous with previous one: "
"prev offset_end %" G_GINT64_FORMAT ", new offset %"
G_GINT64_FORMAT, identity->prev_offset_end,
GST_BUFFER_OFFSET (buf));
}
}
/* update prev values */
identity->prev_timestamp = GST_BUFFER_TIMESTAMP (buf);
identity->prev_duration = GST_BUFFER_DURATION (buf);
identity->prev_offset_end = GST_BUFFER_OFFSET_END (buf);
}
if (identity->error_after >= 0) {
identity->error_after--;
if (identity->error_after == 0) {
gst_buffer_unref (buf);
GST_ELEMENT_ERROR (identity, CORE, FAILED,
(_("Failed after iterations as requested.")), (NULL));
return GST_FLOW_ERROR;
}
}
if (identity->drop_probability > 0.0) {
if ((gfloat) (1.0 * rand () / (RAND_MAX)) < identity->drop_probability) {
g_free (identity->last_message);
identity->last_message =
g_strdup_printf ("dropping ******* (%s:%s)i (%d bytes, timestamp: %"
GST_TIME_FORMAT ", duration: %" GST_TIME_FORMAT ", offset: %"
G_GINT64_FORMAT ", offset_end: % " G_GINT64_FORMAT ", flags: %d) %p",
GST_DEBUG_PAD_NAME (identity->sinkpad), GST_BUFFER_SIZE (buf),
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)),
GST_TIME_ARGS (GST_BUFFER_DURATION (buf)), GST_BUFFER_OFFSET (buf),
GST_BUFFER_OFFSET_END (buf), GST_BUFFER_FLAGS (buf), buf);
g_object_notify (G_OBJECT (identity), "last-message");
gst_buffer_unref (buf);
return GST_FLOW_OK;
}
}
if (identity->dump) {
gst_util_dump_mem (GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
}
for (i = identity->duplicate; i; i--) {
GstClockTime time;
if (!identity->silent) {
g_free (identity->last_message);
identity->last_message =
g_strdup_printf ("chain ******* (%s:%s)i (%d bytes, timestamp: %"
GST_TIME_FORMAT ", duration: %" GST_TIME_FORMAT ", offset: %"
G_GINT64_FORMAT ", offset_end: % " G_GINT64_FORMAT ", flags: %d) %p",
GST_DEBUG_PAD_NAME (identity->sinkpad), GST_BUFFER_SIZE (buf),
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)),
GST_TIME_ARGS (GST_BUFFER_DURATION (buf)), GST_BUFFER_OFFSET (buf),
GST_BUFFER_OFFSET_END (buf), GST_BUFFER_FLAGS (buf), buf);
g_object_notify (G_OBJECT (identity), "last-message");
}
time = GST_BUFFER_TIMESTAMP (buf);
if (identity->datarate > 0) {
time = identity->bytes_handled * GST_SECOND / identity->datarate;
GST_BUFFER_TIMESTAMP (buf) = time;
GST_BUFFER_DURATION (buf) =
GST_BUFFER_SIZE (buf) * GST_SECOND / identity->datarate;
}
g_signal_emit (G_OBJECT (identity), gst_identity_signals[SIGNAL_HANDOFF], 0,
buf);
if (i > 1)
gst_buffer_ref (buf);
if (identity->sync) {
if (identity->clock) {
gst_element_wait (GST_ELEMENT (identity), time);
}
}
identity->bytes_handled += GST_BUFFER_SIZE (buf);
result = gst_pad_push (identity->srcpad, buf);
if (identity->sleep_time)
g_usleep (identity->sleep_time);
}
return result;
}
static void
gst_identity_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstIdentity *identity;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_IDENTITY (object));
identity = GST_IDENTITY (object);
switch (prop_id) {
case ARG_LOOP_BASED:
identity->loop_based = g_value_get_boolean (value);
if (identity->loop_based) {
gst_pad_set_chain_function (identity->sinkpad, NULL);
} else {
gst_pad_set_chain_function (identity->sinkpad, gst_identity_chain);
}
break;
case ARG_SLEEP_TIME:
identity->sleep_time = g_value_get_uint (value);
break;
case ARG_SILENT:
identity->silent = g_value_get_boolean (value);
break;
case ARG_DUPLICATE:
identity->duplicate = g_value_get_uint (value);
break;
case ARG_DUMP:
identity->dump = g_value_get_boolean (value);
break;
case ARG_ERROR_AFTER:
identity->error_after = g_value_get_int (value);
break;
case ARG_DROP_PROBABILITY:
identity->drop_probability = g_value_get_float (value);
break;
case ARG_DATARATE:
identity->datarate = g_value_get_int (value);
break;
case ARG_SYNC:
identity->sync = g_value_get_boolean (value);
break;
case ARG_CHECK_PERFECT:
identity->check_perfect = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_identity_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstIdentity *identity;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_IDENTITY (object));
identity = GST_IDENTITY (object);
switch (prop_id) {
case ARG_LOOP_BASED:
g_value_set_boolean (value, identity->loop_based);
break;
case ARG_SLEEP_TIME:
g_value_set_uint (value, identity->sleep_time);
break;
case ARG_DUPLICATE:
g_value_set_uint (value, identity->duplicate);
break;
case ARG_ERROR_AFTER:
g_value_set_int (value, identity->error_after);
break;
case ARG_DROP_PROBABILITY:
g_value_set_float (value, identity->drop_probability);
break;
case ARG_DATARATE:
g_value_set_int (value, identity->datarate);
break;
case ARG_SILENT:
g_value_set_boolean (value, identity->silent);
break;
case ARG_DUMP:
g_value_set_boolean (value, identity->dump);
break;
case ARG_LAST_MESSAGE:
g_value_set_string (value, identity->last_message);
break;
case ARG_SYNC:
g_value_set_boolean (value, identity->sync);
break;
case ARG_CHECK_PERFECT:
g_value_set_boolean (value, identity->check_perfect);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstElementStateReturn
gst_identity_change_state (GstElement * element)
{
GstIdentity *identity;
g_return_val_if_fail (GST_IS_IDENTITY (element), GST_STATE_FAILURE);
identity = GST_IDENTITY (element);
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_NULL_TO_READY:
break;
case GST_STATE_READY_TO_PAUSED:
identity->bytes_handled = 0;
identity->prev_timestamp = GST_CLOCK_TIME_NONE;
identity->prev_duration = GST_CLOCK_TIME_NONE;
identity->prev_offset_end = -1;
break;
case GST_STATE_PAUSED_TO_PLAYING:
case GST_STATE_PLAYING_TO_PAUSED:
break;
case GST_STATE_PAUSED_TO_READY:
g_free (identity->last_message);
identity->last_message = NULL;
break;
case GST_STATE_READY_TO_NULL:
break;
default:
break;
}
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
return GST_STATE_SUCCESS;
}