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inter: new intermediate surface plugin

Browse source 
This set of elements allows easily rendering audio and video to
an intermediate surface that is then used as a source in a different
pipeline.
This commit is contained in:
David Schleef 2011-06-03 19:41:33 -07:00
parent 2573de1062
commit e9f0e27596
14 changed files with 2611 additions and 0 deletions
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2
configure.ac
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@ -322,6 +322,7 @@ AG_GST_CHECK_PLUGIN(h264parse)
AG_GST_CHECK_PLUGIN(hdvparse)
AG_GST_CHECK_PLUGIN(hls)
AG_GST_CHECK_PLUGIN(id3tag)
AG_GST_CHECK_PLUGIN(inter)
AG_GST_CHECK_PLUGIN(interlace)
AG_GST_CHECK_PLUGIN(ivfparse)
AG_GST_CHECK_PLUGIN(jp2kdecimator)
@ -1873,6 +1874,7 @@ gst/h264parse/Makefile
gst/hdvparse/Makefile
gst/hls/Makefile
gst/id3tag/Makefile
gst/inter/Makefile
gst/interlace/Makefile
gst/ivfparse/Makefile
gst/jp2kdecimator/Makefile

56
gst/inter/Makefile.am Normal file
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@ -0,0 +1,56 @@
plugin_LTLIBRARIES = libgstinter.la
noinst_PROGRAMS = gstintertest
libgstinter_la_SOURCES = \
gstinteraudiosink.c \
gstinteraudiosrc.c \
gstintervideosink.c \
gstintervideosrc.c \
gstinter.c \
gstintersurface.c
noinst_HEADERS = \
gstinteraudiosink.h \
gstinteraudiosrc.h \
gstintervideosink.h \
gstintervideosrc.h \
gstintersurface.h
libgstinter_la_CFLAGS = \
$(GST_CFLAGS) \
$(GST_PLUGINS_BASE_CFLAGS)
libgstinter_la_LIBADD = \
$(GST_LIBS) \
$(GST_PLUGINS_BASE_LIBS) -lgstvideo-@GST_MAJORMINOR@ -lgstaudio-@GST_MAJORMINOR@ \
$(LIBM)
libgstinter_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
libgstinter_la_LIBTOOLFLAGS = --tag=disable-static
gstintertest_SOURCES = \
gstintertest.c
gstintertest_CFLAGS = \
$(GST_CFLAGS) \
$(GST_PLUGINS_BASE_CFLAGS)
gstintertest_LDADD = \
$(GST_LIBS) \
$(GST_PLUGINS_BASE_LIBS) \
$(LIBM)
Android.mk: Makefile.am $(BUILT_SOURCES)
androgenizer \
-:PROJECT libgstinter -:SHARED libgstinter \
-:TAGS eng debug \
-:REL_TOP $(top_srcdir) -:ABS_TOP $(abs_top_srcdir) \
-:SOURCES $(libgstinter_la_SOURCES) \
-:CFLAGS $(DEFS) $(DEFAULT_INCLUDES) $(libgstinter_la_CFLAGS) \
-:LDFLAGS $(libgstinter_la_LDFLAGS) \
$(libgstinter_la_LIBADD) \
-ldl \
-:PASSTHROUGH LOCAL_ARM_MODE:=arm \
LOCAL_MODULE_PATH:='$$(TARGET_OUT)/lib/gstreamer-0.10' \
> $@

51
gst/inter/gstinter.c Normal file
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@ -0,0 +1,51 @@
/* GStreamer
* Copyright (C) 2011 FIXME <fixme@example.com>
*
* 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 Street, Suite 500,
* Boston, MA 02110-1335, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstinteraudiosrc.h"
#include "gstinteraudiosink.h"
#include "gstintervideosrc.h"
#include "gstintervideosink.h"
#include "gstintersurface.h"
static gboolean
plugin_init (GstPlugin * plugin)
{
gst_element_register (plugin, "interaudiosrc", GST_RANK_NONE,
GST_TYPE_INTER_AUDIO_SRC);
gst_element_register (plugin, "interaudiosink", GST_RANK_NONE,
GST_TYPE_INTER_AUDIO_SINK);
gst_element_register (plugin, "intervideosrc", GST_RANK_NONE,
GST_TYPE_INTER_VIDEO_SRC);
gst_element_register (plugin, "intervideosink", GST_RANK_NONE,
GST_TYPE_INTER_VIDEO_SINK);
gst_inter_surface_init ();
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"inter",
"plugin for inter-pipeline communication",
plugin_init, VERSION, "LGPL", PACKAGE_NAME, GST_PACKAGE_ORIGIN)

342
gst/inter/gstinteraudiosink.c Normal file
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@ -0,0 +1,342 @@
/* GStreamer
* Copyright (C) 2011 David A. Schleef <ds@schleef.org>
*
* 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 Street, Suite 500,
* Boston, MA 02110-1335, USA.
*/
/**
* SECTION:element-gstinteraudiosink
*
* The interaudiosink element does FIXME stuff.
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch -v fakesrc ! interaudiosink ! FIXME ! fakesink
* ]|
* FIXME Describe what the pipeline does.
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/base/gstbasesink.h>
#include <gst/audio/audio.h>
#include "gstinteraudiosink.h"
#include <string.h>
GST_DEBUG_CATEGORY_STATIC (gst_inter_audio_sink_debug_category);
#define GST_CAT_DEFAULT gst_inter_audio_sink_debug_category
/* prototypes */
static void gst_inter_audio_sink_set_property (GObject * object,
guint property_id, const GValue * value, GParamSpec * pspec);
static void gst_inter_audio_sink_get_property (GObject * object,
guint property_id, GValue * value, GParamSpec * pspec);
static void gst_inter_audio_sink_dispose (GObject * object);
static void gst_inter_audio_sink_finalize (GObject * object);
static GstCaps *gst_inter_audio_sink_get_caps (GstBaseSink * sink);
static gboolean gst_inter_audio_sink_set_caps (GstBaseSink * sink,
GstCaps * caps);
static GstFlowReturn gst_inter_audio_sink_buffer_alloc (GstBaseSink * sink,
guint64 offset, guint size, GstCaps * caps, GstBuffer ** buf);
static void gst_inter_audio_sink_get_times (GstBaseSink * sink,
GstBuffer * buffer, GstClockTime * start, GstClockTime * end);
static gboolean gst_inter_audio_sink_start (GstBaseSink * sink);
static gboolean gst_inter_audio_sink_stop (GstBaseSink * sink);
static gboolean gst_inter_audio_sink_unlock (GstBaseSink * sink);
static gboolean gst_inter_audio_sink_event (GstBaseSink * sink,
GstEvent * event);
static GstFlowReturn gst_inter_audio_sink_preroll (GstBaseSink * sink,
GstBuffer * buffer);
static GstFlowReturn gst_inter_audio_sink_render (GstBaseSink * sink,
GstBuffer * buffer);
static GstStateChangeReturn gst_inter_audio_sink_async_play (GstBaseSink *
sink);
static gboolean gst_inter_audio_sink_activate_pull (GstBaseSink * sink,
gboolean active);
static gboolean gst_inter_audio_sink_unlock_stop (GstBaseSink * sink);
enum
{
PROP_0
};
/* pad templates */
static GstStaticPadTemplate gst_inter_audio_sink_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"endianness = (int) BYTE_ORDER, "
"signed = (boolean) true, "
"width = (int) 16, "
"depth = (int) 16, "
"rate = (int) [ 1, MAX ], " "channels = (int) [ 1, 2 ]")
);
/* class initialization */
#define DEBUG_INIT(bla) \
GST_DEBUG_CATEGORY_INIT (gst_inter_audio_sink_debug_category, "interaudiosink", 0, \
"debug category for interaudiosink element");
GST_BOILERPLATE_FULL (GstInterAudioSink, gst_inter_audio_sink, GstBaseSink,
GST_TYPE_BASE_SINK, DEBUG_INIT);
static void
gst_inter_audio_sink_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_inter_audio_sink_sink_template));
gst_element_class_set_details_simple (element_class, "FIXME Long name",
"Generic", "FIXME Description", "FIXME <fixme@example.com>");
}
static void
gst_inter_audio_sink_class_init (GstInterAudioSinkClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstBaseSinkClass *base_sink_class = GST_BASE_SINK_CLASS (klass);
gobject_class->set_property = gst_inter_audio_sink_set_property;
gobject_class->get_property = gst_inter_audio_sink_get_property;
gobject_class->dispose = gst_inter_audio_sink_dispose;
gobject_class->finalize = gst_inter_audio_sink_finalize;
base_sink_class->get_caps = GST_DEBUG_FUNCPTR (gst_inter_audio_sink_get_caps);
base_sink_class->set_caps = GST_DEBUG_FUNCPTR (gst_inter_audio_sink_set_caps);
if (0)
base_sink_class->buffer_alloc =
GST_DEBUG_FUNCPTR (gst_inter_audio_sink_buffer_alloc);
base_sink_class->get_times =
GST_DEBUG_FUNCPTR (gst_inter_audio_sink_get_times);
base_sink_class->start = GST_DEBUG_FUNCPTR (gst_inter_audio_sink_start);
base_sink_class->stop = GST_DEBUG_FUNCPTR (gst_inter_audio_sink_stop);
base_sink_class->unlock = GST_DEBUG_FUNCPTR (gst_inter_audio_sink_unlock);
if (0)
base_sink_class->event = GST_DEBUG_FUNCPTR (gst_inter_audio_sink_event);
//if (0)
base_sink_class->preroll = GST_DEBUG_FUNCPTR (gst_inter_audio_sink_preroll);
base_sink_class->render = GST_DEBUG_FUNCPTR (gst_inter_audio_sink_render);
if (0)
base_sink_class->async_play =
GST_DEBUG_FUNCPTR (gst_inter_audio_sink_async_play);
if (0)
base_sink_class->activate_pull =
GST_DEBUG_FUNCPTR (gst_inter_audio_sink_activate_pull);
base_sink_class->unlock_stop =
GST_DEBUG_FUNCPTR (gst_inter_audio_sink_unlock_stop);
}
static void
gst_inter_audio_sink_init (GstInterAudioSink * interaudiosink,
GstInterAudioSinkClass * interaudiosink_class)
{
interaudiosink->sinkpad =
gst_pad_new_from_static_template (&gst_inter_audio_sink_sink_template,
"sink");
interaudiosink->surface = gst_inter_surface_get ("default");
}
void
gst_inter_audio_sink_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
/* GstInterAudioSink *interaudiosink = GST_INTER_AUDIO_SINK (object); */
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gst_inter_audio_sink_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
/* GstInterAudioSink *interaudiosink = GST_INTER_AUDIO_SINK (object); */
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gst_inter_audio_sink_dispose (GObject * object)
{
/* GstInterAudioSink *interaudiosink = GST_INTER_AUDIO_SINK (object); */
/* clean up as possible. may be called multiple times */
G_OBJECT_CLASS (parent_class)->dispose (object);
}
void
gst_inter_audio_sink_finalize (GObject * object)
{
/* GstInterAudioSink *interaudiosink = GST_INTER_AUDIO_SINK (object); */
/* clean up object here */
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GstCaps *
gst_inter_audio_sink_get_caps (GstBaseSink * sink)
{
return NULL;
}
static gboolean
gst_inter_audio_sink_set_caps (GstBaseSink * sink, GstCaps * caps)
{
return TRUE;
}
static GstFlowReturn
gst_inter_audio_sink_buffer_alloc (GstBaseSink * sink, guint64 offset,
guint size, GstCaps * caps, GstBuffer ** buf)
{
return GST_FLOW_ERROR;
}
static void
gst_inter_audio_sink_get_times (GstBaseSink * sink, GstBuffer * buffer,
GstClockTime * start, GstClockTime * end)
{
GstInterAudioSink *interaudiosink = GST_INTER_AUDIO_SINK (sink);
if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer)) {
*start = GST_BUFFER_TIMESTAMP (buffer);
if (GST_BUFFER_DURATION_IS_VALID (buffer)) {
*end = *start + GST_BUFFER_DURATION (buffer);
} else {
if (interaudiosink->fps_n > 0) {
*end = *start +
gst_util_uint64_scale_int (GST_SECOND, interaudiosink->fps_d,
interaudiosink->fps_n);
}
}
}
}
static gboolean
gst_inter_audio_sink_start (GstBaseSink * sink)
{
return TRUE;
}
static gboolean
gst_inter_audio_sink_stop (GstBaseSink * sink)
{
GstInterAudioSink *interaudiosink = GST_INTER_AUDIO_SINK (sink);
GST_DEBUG ("stop");
g_mutex_lock (interaudiosink->surface->mutex);
gst_adapter_clear (interaudiosink->surface->audio_adapter);
g_mutex_unlock (interaudiosink->surface->mutex);
return TRUE;
}
static gboolean
gst_inter_audio_sink_unlock (GstBaseSink * sink)
{
return TRUE;
}
static gboolean
gst_inter_audio_sink_event (GstBaseSink * sink, GstEvent * event)
{
return TRUE;
}
static GstFlowReturn
gst_inter_audio_sink_preroll (GstBaseSink * sink, GstBuffer * buffer)
{
return GST_FLOW_OK;
}
static GstFlowReturn
gst_inter_audio_sink_render (GstBaseSink * sink, GstBuffer * buffer)
{
GstInterAudioSink *interaudiosink = GST_INTER_AUDIO_SINK (sink);
int n;
GST_DEBUG ("render %d", GST_BUFFER_SIZE (buffer));
g_mutex_lock (interaudiosink->surface->mutex);
n = gst_adapter_available (interaudiosink->surface->audio_adapter) / 4;
if (n > (800 * 2 * 2)) {
GST_INFO ("flushing 800 samples");
gst_adapter_flush (interaudiosink->surface->audio_adapter, 800 * 4);
n -= 800;
}
gst_adapter_push (interaudiosink->surface->audio_adapter,
gst_buffer_ref (buffer));
g_mutex_unlock (interaudiosink->surface->mutex);
return GST_FLOW_OK;
}
static GstStateChangeReturn
gst_inter_audio_sink_async_play (GstBaseSink * sink)
{
return GST_STATE_CHANGE_SUCCESS;
}
static gboolean
gst_inter_audio_sink_activate_pull (GstBaseSink * sink, gboolean active)
{
return TRUE;
}
static gboolean
gst_inter_audio_sink_unlock_stop (GstBaseSink * sink)
{
return TRUE;
}

58
gst/inter/gstinteraudiosink.h Normal file
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@ -0,0 +1,58 @@
/* GStreamer
* Copyright (C) 2011 David A. Schleef <ds@schleef.org>
*
* 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.
*/
#ifndef _GST_INTER_AUDIO_SINK_H_
#define _GST_INTER_AUDIO_SINK_H_
#include <gst/base/gstbasesink.h>
#include "gstintersurface.h"
G_BEGIN_DECLS
#define GST_TYPE_INTER_AUDIO_SINK (gst_inter_audio_sink_get_type())
#define GST_INTER_AUDIO_SINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_INTER_AUDIO_SINK,GstInterAudioSink))
#define GST_INTER_AUDIO_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_INTER_AUDIO_SINK,GstInterAudioSinkClass))
#define GST_IS_INTER_AUDIO_SINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_INTER_AUDIO_SINK))
#define GST_IS_INTER_AUDIO_SINK_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_INTER_AUDIO_SINK))
typedef struct _GstInterAudioSink GstInterAudioSink;
typedef struct _GstInterAudioSinkClass GstInterAudioSinkClass;
struct _GstInterAudioSink
{
GstBaseSink base_interaudiosink;
GstInterSurface *surface;
GstPad *sinkpad;
int fps_n;
int fps_d;
};
struct _GstInterAudioSinkClass
{
GstBaseSinkClass base_interaudiosink_class;
};
GType gst_inter_audio_sink_get_type (void);
G_END_DECLS
#endif

481
gst/inter/gstinteraudiosrc.c Normal file
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@ -0,0 +1,481 @@
/* GStreamer
* Copyright (C) 2011 David A. Schleef <ds@schleef.org>
*
* 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 Street, Suite 500,
* Boston, MA 02110-1335, USA.
*/
/**
* SECTION:element-gstinteraudiosrc
*
* The interaudiosrc element does FIXME stuff.
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch -v fakesrc ! interaudiosrc ! FIXME ! fakesink
* ]|
* FIXME Describe what the pipeline does.
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/base/gstbasesrc.h>
#include "gstinteraudiosrc.h"
#include <string.h>
GST_DEBUG_CATEGORY_STATIC (gst_inter_audio_src_debug_category);
#define GST_CAT_DEFAULT gst_inter_audio_src_debug_category
/* prototypes */
static void gst_inter_audio_src_set_property (GObject * object,
guint property_id, const GValue * value, GParamSpec * pspec);
static void gst_inter_audio_src_get_property (GObject * object,
guint property_id, GValue * value, GParamSpec * pspec);
static void gst_inter_audio_src_dispose (GObject * object);
static void gst_inter_audio_src_finalize (GObject * object);
static GstCaps *gst_inter_audio_src_get_caps (GstBaseSrc * src);
static gboolean gst_inter_audio_src_set_caps (GstBaseSrc * src, GstCaps * caps);
static gboolean gst_inter_audio_src_negotiate (GstBaseSrc * src);
static gboolean gst_inter_audio_src_newsegment (GstBaseSrc * src);
static gboolean gst_inter_audio_src_start (GstBaseSrc * src);
static gboolean gst_inter_audio_src_stop (GstBaseSrc * src);
static void
gst_inter_audio_src_get_times (GstBaseSrc * src, GstBuffer * buffer,
GstClockTime * start, GstClockTime * end);
static gboolean gst_inter_audio_src_is_seekable (GstBaseSrc * src);
static gboolean gst_inter_audio_src_unlock (GstBaseSrc * src);
static gboolean gst_inter_audio_src_event (GstBaseSrc * src, GstEvent * event);
static GstFlowReturn
gst_inter_audio_src_create (GstBaseSrc * src, guint64 offset, guint size,
GstBuffer ** buf);
static gboolean gst_inter_audio_src_do_seek (GstBaseSrc * src,
GstSegment * segment);
static gboolean gst_inter_audio_src_query (GstBaseSrc * src, GstQuery * query);
static gboolean gst_inter_audio_src_check_get_range (GstBaseSrc * src);
static void gst_inter_audio_src_fixate (GstBaseSrc * src, GstCaps * caps);
static gboolean gst_inter_audio_src_unlock_stop (GstBaseSrc * src);
static gboolean
gst_inter_audio_src_prepare_seek_segment (GstBaseSrc * src, GstEvent * seek,
GstSegment * segment);
enum
{
PROP_0
};
/* pad templates */
static GstStaticPadTemplate gst_inter_audio_src_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"endianness = (int) BYTE_ORDER, "
"signed = (boolean) true, "
"width = (int) 16, "
"depth = (int) 16, "
"rate = (int) [ 1, MAX ], " "channels = (int) [ 1, 2 ]")
);
/* class initialization */
#define DEBUG_INIT(bla) \
GST_DEBUG_CATEGORY_INIT (gst_inter_audio_src_debug_category, "interaudiosrc", 0, \
"debug category for interaudiosrc element");
GST_BOILERPLATE_FULL (GstInterAudioSrc, gst_inter_audio_src, GstBaseSrc,
GST_TYPE_BASE_SRC, DEBUG_INIT);
static void
gst_inter_audio_src_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_inter_audio_src_src_template));
gst_element_class_set_details_simple (element_class, "FIXME Long name",
"Generic", "FIXME Description", "FIXME <fixme@example.com>");
}
static void
gst_inter_audio_src_class_init (GstInterAudioSrcClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstBaseSrcClass *base_src_class = GST_BASE_SRC_CLASS (klass);
gobject_class->set_property = gst_inter_audio_src_set_property;
gobject_class->get_property = gst_inter_audio_src_get_property;
gobject_class->dispose = gst_inter_audio_src_dispose;
gobject_class->finalize = gst_inter_audio_src_finalize;
base_src_class->get_caps = GST_DEBUG_FUNCPTR (gst_inter_audio_src_get_caps);
base_src_class->set_caps = GST_DEBUG_FUNCPTR (gst_inter_audio_src_set_caps);
if (0)
base_src_class->negotiate =
GST_DEBUG_FUNCPTR (gst_inter_audio_src_negotiate);
base_src_class->newsegment =
GST_DEBUG_FUNCPTR (gst_inter_audio_src_newsegment);
base_src_class->start = GST_DEBUG_FUNCPTR (gst_inter_audio_src_start);
base_src_class->stop = GST_DEBUG_FUNCPTR (gst_inter_audio_src_stop);
base_src_class->get_times = GST_DEBUG_FUNCPTR (gst_inter_audio_src_get_times);
if (0)
base_src_class->is_seekable =
GST_DEBUG_FUNCPTR (gst_inter_audio_src_is_seekable);
base_src_class->unlock = GST_DEBUG_FUNCPTR (gst_inter_audio_src_unlock);
base_src_class->event = GST_DEBUG_FUNCPTR (gst_inter_audio_src_event);
base_src_class->create = GST_DEBUG_FUNCPTR (gst_inter_audio_src_create);
if (0)
base_src_class->do_seek = GST_DEBUG_FUNCPTR (gst_inter_audio_src_do_seek);
base_src_class->query = GST_DEBUG_FUNCPTR (gst_inter_audio_src_query);
if (0)
base_src_class->check_get_range =
GST_DEBUG_FUNCPTR (gst_inter_audio_src_check_get_range);
base_src_class->fixate = GST_DEBUG_FUNCPTR (gst_inter_audio_src_fixate);
if (0)
base_src_class->unlock_stop =
GST_DEBUG_FUNCPTR (gst_inter_audio_src_unlock_stop);
if (0)
base_src_class->prepare_seek_segment =
GST_DEBUG_FUNCPTR (gst_inter_audio_src_prepare_seek_segment);
}
static void
gst_inter_audio_src_init (GstInterAudioSrc * interaudiosrc,
GstInterAudioSrcClass * interaudiosrc_class)
{
interaudiosrc->srcpad =
gst_pad_new_from_static_template (&gst_inter_audio_src_src_template,
"src");
gst_base_src_set_live (GST_BASE_SRC (interaudiosrc), TRUE);
gst_base_src_set_blocksize (GST_BASE_SRC (interaudiosrc), -1);
interaudiosrc->surface = gst_inter_surface_get ("default");
}
void
gst_inter_audio_src_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
/* GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (object); */
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gst_inter_audio_src_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
/* GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (object); */
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gst_inter_audio_src_dispose (GObject * object)
{
/* GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (object); */
/* clean up as possible. may be called multiple times */
G_OBJECT_CLASS (parent_class)->dispose (object);
}
void
gst_inter_audio_src_finalize (GObject * object)
{
/* GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (object); */
/* clean up object here */
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GstCaps *
gst_inter_audio_src_get_caps (GstBaseSrc * src)
{
GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (src);
GST_DEBUG_OBJECT (interaudiosrc, "get_caps");
return NULL;
}
static gboolean
gst_inter_audio_src_set_caps (GstBaseSrc * src, GstCaps * caps)
{
GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (src);
const GstStructure *structure;
gboolean ret;
int sample_rate;
GST_DEBUG_OBJECT (interaudiosrc, "set_caps");
structure = gst_caps_get_structure (caps, 0);
ret = gst_structure_get_int (structure, "rate", &sample_rate);
if (ret) {
interaudiosrc->sample_rate = sample_rate;
}
return ret;
}
static gboolean
gst_inter_audio_src_negotiate (GstBaseSrc * src)
{
GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (src);
GST_DEBUG_OBJECT (interaudiosrc, "negotiate");
return TRUE;
}
static gboolean
gst_inter_audio_src_newsegment (GstBaseSrc * src)
{
GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (src);
GST_DEBUG_OBJECT (interaudiosrc, "newsegment");
return TRUE;
}
static gboolean
gst_inter_audio_src_start (GstBaseSrc * src)
{
GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (src);
GST_DEBUG_OBJECT (interaudiosrc, "start");
return TRUE;
}
static gboolean
gst_inter_audio_src_stop (GstBaseSrc * src)
{
GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (src);
GST_DEBUG_OBJECT (interaudiosrc, "stop");
return TRUE;
}
static void
gst_inter_audio_src_get_times (GstBaseSrc * src, GstBuffer * buffer,
GstClockTime * start, GstClockTime * end)
{
GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (src);
GST_DEBUG_OBJECT (interaudiosrc, "get_times");
/* for live sources, sync on the timestamp of the buffer */
if (gst_base_src_is_live (src)) {
GstClockTime timestamp = GST_BUFFER_TIMESTAMP (buffer);
if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
/* get duration to calculate end time */
GstClockTime duration = GST_BUFFER_DURATION (buffer);
if (GST_CLOCK_TIME_IS_VALID (duration)) {
*end = timestamp + duration;
}
*start = timestamp;
}
} else {
*start = -1;
*end = -1;
}
}
static gboolean
gst_inter_audio_src_is_seekable (GstBaseSrc * src)
{
GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (src);
GST_DEBUG_OBJECT (interaudiosrc, "is_seekable");
return FALSE;
}
static gboolean
gst_inter_audio_src_unlock (GstBaseSrc * src)
{
GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (src);
GST_DEBUG_OBJECT (interaudiosrc, "unlock");
return TRUE;
}
static gboolean
gst_inter_audio_src_event (GstBaseSrc * src, GstEvent * event)
{
GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (src);
GST_DEBUG_OBJECT (interaudiosrc, "event");
return TRUE;
}
static GstFlowReturn
gst_inter_audio_src_create (GstBaseSrc * src, guint64 offset, guint size,
GstBuffer ** buf)
{
GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (src);
GstBuffer *buffer;
int n;
GST_DEBUG_OBJECT (interaudiosrc, "create");
buffer = NULL;
g_mutex_lock (interaudiosrc->surface->mutex);
n = gst_adapter_available (interaudiosrc->surface->audio_adapter) / 4;
if (n > 1600 * 2) {
GST_DEBUG ("flushing %d samples", 800);
gst_adapter_flush (interaudiosrc->surface->audio_adapter, 800 * 4);
n -= 800;
}
if (n > 1600)
n = 1600;
if (n > 0) {
buffer = gst_adapter_take_buffer (interaudiosrc->surface->audio_adapter,
n * 4);
}
g_mutex_unlock (interaudiosrc->surface->mutex);
if (n < 1600) {
GstBuffer *newbuf = gst_buffer_new_and_alloc (1600 * 4);
GST_DEBUG ("creating %d samples of silence", 1600 - n);
memset (GST_BUFFER_DATA (newbuf) + n * 4, 0, 1600 * 4 - n * 4);
if (buffer) {
memcpy (GST_BUFFER_DATA (newbuf), GST_BUFFER_DATA (buffer), n * 4);
gst_buffer_unref (buffer);
}
buffer = newbuf;
}
n = 1600;
GST_BUFFER_OFFSET (buffer) = interaudiosrc->n_samples;
GST_BUFFER_OFFSET_END (buffer) = interaudiosrc->n_samples + n;
GST_BUFFER_TIMESTAMP (buffer) =
gst_util_uint64_scale_int (interaudiosrc->n_samples, GST_SECOND,
interaudiosrc->sample_rate);
GST_DEBUG_OBJECT (interaudiosrc, "create ts %" GST_TIME_FORMAT,
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)));
GST_BUFFER_DURATION (buffer) =
gst_util_uint64_scale_int (interaudiosrc->n_samples + n, GST_SECOND,
interaudiosrc->sample_rate) - GST_BUFFER_TIMESTAMP (buffer);
GST_BUFFER_OFFSET (buffer) = interaudiosrc->n_samples;
GST_BUFFER_OFFSET_END (buffer) = -1;
GST_BUFFER_FLAG_UNSET (buffer, GST_BUFFER_FLAG_DISCONT);
if (interaudiosrc->n_samples == 0) {
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
}
gst_buffer_set_caps (buffer, GST_PAD_CAPS (GST_BASE_SRC_PAD (interaudiosrc)));
interaudiosrc->n_samples += n;
*buf = buffer;
return GST_FLOW_OK;
}
static gboolean
gst_inter_audio_src_do_seek (GstBaseSrc * src, GstSegment * segment)
{
GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (src);
GST_DEBUG_OBJECT (interaudiosrc, "do_seek");
return FALSE;
}
static gboolean
gst_inter_audio_src_query (GstBaseSrc * src, GstQuery * query)
{
GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (src);
GST_DEBUG_OBJECT (interaudiosrc, "query");
return TRUE;
}
static gboolean
gst_inter_audio_src_check_get_range (GstBaseSrc * src)
{
GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (src);
GST_DEBUG_OBJECT (interaudiosrc, "get_range");
return FALSE;
}
static void
gst_inter_audio_src_fixate (GstBaseSrc * src, GstCaps * caps)
{
GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (src);
GstStructure *structure;
structure = gst_caps_get_structure (caps, 0);
GST_DEBUG_OBJECT (interaudiosrc, "fixate");
gst_structure_fixate_field_nearest_int (structure, "channels", 2);
gst_structure_fixate_field_nearest_int (structure, "rate", 48000);
}
static gboolean
gst_inter_audio_src_unlock_stop (GstBaseSrc * src)
{
GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (src);
GST_DEBUG_OBJECT (interaudiosrc, "stop");
return TRUE;
}
static gboolean
gst_inter_audio_src_prepare_seek_segment (GstBaseSrc * src, GstEvent * seek,
GstSegment * segment)
{
GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (src);
GST_DEBUG_OBJECT (interaudiosrc, "seek_segment");
return FALSE;
}

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/* GStreamer
* Copyright (C) 2011 David A. Schleef <ds@schleef.org>
*
* 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.
*/
#ifndef _GST_INTER_AUDIO_SRC_H_
#define _GST_INTER_AUDIO_SRC_H_
#include <gst/base/gstbasesrc.h>
#include "gstintersurface.h"
G_BEGIN_DECLS
#define GST_TYPE_INTER_AUDIO_SRC (gst_inter_audio_src_get_type())
#define GST_INTER_AUDIO_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_INTER_AUDIO_SRC,GstInterAudioSrc))
#define GST_INTER_AUDIO_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_INTER_AUDIO_SRC,GstInterAudioSrcClass))
#define GST_IS_INTER_AUDIO_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_INTER_AUDIO_SRC))
#define GST_IS_INTER_AUDIO_SRC_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_INTER_AUDIO_SRC))
typedef struct _GstInterAudioSrc GstInterAudioSrc;
typedef struct _GstInterAudioSrcClass GstInterAudioSrcClass;
struct _GstInterAudioSrc
{
GstBaseSrc base_interaudiosrc;
GstPad *srcpad;
GstInterSurface *surface;
guint64 n_samples;
int sample_rate;
};
struct _GstInterAudioSrcClass
{
GstBaseSrcClass base_interaudiosrc_class;
};
GType gst_inter_audio_src_get_type (void);
G_END_DECLS
#endif

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/* GStreamer
* Copyright (C) 2011 FIXME <fixme@example.com>
*
* 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 Street, Suite 500,
* Boston, MA 02110-1335, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstintersurface.h"
static GstInterSurface *surface;
GstInterSurface *
gst_inter_surface_get (const char *name)
{
return surface;
}
void
gst_inter_surface_init (void)
{
surface = g_malloc0 (sizeof (GstInterSurface));
surface->mutex = g_mutex_new ();
surface->audio_adapter = gst_adapter_new ();
}

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/* GStreamer
* Copyright (C) 2011 David A. Schleef <ds@schleef.org>
*
* 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.
*/
#ifndef _GST_INTER_SURFACE_H_
#define _GST_INTER_SURFACE_H_
#include <gst/base/gstadapter.h>
#include <gst/video/video.h>
G_BEGIN_DECLS
typedef struct _GstInterSurface GstInterSurface;
struct _GstInterSurface
{
GMutex *mutex;
/* video */
GstVideoFormat format;
int fps_n;
int fps_d;
int width;
int height;
int n_frames;
int video_buffer_count;
/* audio */
int sample_rate;
int n_channels;
GstBuffer *video_buffer;
GstAdapter *audio_adapter;
};
GstInterSurface * gst_inter_surface_get (const char *name);
void gst_inter_surface_init (void);
G_END_DECLS
#endif

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/* GstInterTest
* Copyright (C) 2011 FIXME <fixme@example.com>
* Copyright (C) 2010 Entropy Wave Inc
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <stdlib.h>
//#define GETTEXT_PACKAGE "intertest"
typedef struct _GstInterTest GstInterTest;
struct _GstInterTest
{
GstElement *pipeline;
GstBus *bus;
GMainLoop *main_loop;
GstElement *source_element;
GstElement *sink_element;
gboolean paused_for_buffering;
guint timer_id;
};
GstInterTest *gst_inter_test_new (void);
void gst_inter_test_free (GstInterTest * intertest);
void gst_inter_test_create_pipeline_server (GstInterTest * intertest);
void gst_inter_test_create_pipeline_vts (GstInterTest * intertest);
void gst_inter_test_create_pipeline_playbin (GstInterTest * intertest,
const char *uri);
void gst_inter_test_start (GstInterTest * intertest);
void gst_inter_test_stop (GstInterTest * intertest);
static gboolean gst_inter_test_handle_message (GstBus * bus,
GstMessage * message, gpointer data);
static gboolean onesecond_timer (gpointer priv);
gboolean verbose;
static GOptionEntry entries[] = {
{"verbose", 'v', 0, G_OPTION_ARG_NONE, &verbose, "Be verbose", NULL},
{NULL}
};
int
main (int argc, char *argv[])
{
GError *error = NULL;
GOptionContext *context;
GstInterTest *intertest1;
GstInterTest *intertest2;
GMainLoop *main_loop;
if (!g_thread_supported ())
g_thread_init (NULL);
context = g_option_context_new ("- FIXME");
g_option_context_add_main_entries (context, entries, GETTEXT_PACKAGE);
g_option_context_add_group (context, gst_init_get_option_group ());
if (!g_option_context_parse (context, &argc, &argv, &error)) {
g_print ("option parsing failed: %s\n", error->message);
exit (1);
}
g_option_context_free (context);
intertest1 = gst_inter_test_new ();
gst_inter_test_create_pipeline_server (intertest1);
gst_inter_test_start (intertest1);
intertest2 = gst_inter_test_new ();
gst_inter_test_create_pipeline_playbin (intertest2, NULL);
gst_inter_test_start (intertest2);
main_loop = g_main_loop_new (NULL, TRUE);
intertest1->main_loop = main_loop;
intertest2->main_loop = main_loop;
g_main_loop_run (main_loop);
exit (0);
}
GstInterTest *
gst_inter_test_new (void)
{
GstInterTest *intertest;
intertest = g_new0 (GstInterTest, 1);
return intertest;
}
void
gst_inter_test_free (GstInterTest * intertest)
{
if (intertest->source_element) {
gst_object_unref (intertest->source_element);
intertest->source_element = NULL;
}
if (intertest->sink_element) {
gst_object_unref (intertest->sink_element);
intertest->sink_element = NULL;
}
if (intertest->pipeline) {
gst_element_set_state (intertest->pipeline, GST_STATE_NULL);
gst_object_unref (intertest->pipeline);
intertest->pipeline = NULL;
}
g_free (intertest);
}
void
gst_inter_test_create_pipeline_playbin (GstInterTest * intertest,
const char *uri)
{
GstElement *pipeline;
GError *error = NULL;
if (uri == NULL) {
gst_inter_test_create_pipeline_vts (intertest);
return;
}
pipeline = gst_pipeline_new (NULL);
gst_bin_add (GST_BIN (pipeline),
gst_element_factory_make ("playbin2", "source"));
if (error) {
g_print ("pipeline parsing error: %s\n", error->message);
gst_object_unref (pipeline);
return;
}
intertest->pipeline = pipeline;
gst_pipeline_set_auto_flush_bus (GST_PIPELINE (pipeline), FALSE);
intertest->bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
gst_bus_add_watch (intertest->bus, gst_inter_test_handle_message, intertest);
intertest->source_element =
gst_bin_get_by_name (GST_BIN (pipeline), "source");
g_print ("source_element is %p\n", intertest->source_element);
g_print ("setting uri to %s\n", uri);
g_object_set (intertest->source_element, "uri", uri, NULL);
}
void
gst_inter_test_create_pipeline_vts (GstInterTest * intertest)
{
GString *pipe_desc;
GstElement *pipeline;
GError *error = NULL;
pipe_desc = g_string_new ("");
g_string_append (pipe_desc, "videotestsrc name=source num-buffers=10000 ! ");
g_string_append (pipe_desc,
"video/x-raw-yuv,format=(fourcc)I420,width=320,height=240 ! ");
g_string_append (pipe_desc, "timeoverlay ! ");
g_string_append (pipe_desc, "intervideosink name=sink sync=true ");
g_string_append (pipe_desc,
"audiotestsrc samplesperbuffer=1600 num-buffers=100 ! ");
g_string_append (pipe_desc, "interaudiosink ");
if (verbose)
g_print ("pipeline: %s\n", pipe_desc->str);
pipeline = (GstElement *) gst_parse_launch (pipe_desc->str, &error);
g_string_free (pipe_desc, FALSE);
if (error) {
g_print ("pipeline parsing error: %s\n", error->message);
gst_object_unref (pipeline);
return;
}
intertest->pipeline = pipeline;
gst_pipeline_set_auto_flush_bus (GST_PIPELINE (pipeline), FALSE);
intertest->bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
gst_bus_add_watch (intertest->bus, gst_inter_test_handle_message, intertest);
intertest->source_element =
gst_bin_get_by_name (GST_BIN (pipeline), "source");
intertest->sink_element = gst_bin_get_by_name (GST_BIN (pipeline), "sink");
}
void
gst_inter_test_create_pipeline_server (GstInterTest * intertest)
{
GString *pipe_desc;
GstElement *pipeline;
GError *error = NULL;
pipe_desc = g_string_new ("");
g_string_append (pipe_desc, "intervideosrc ! queue ! ");
g_string_append (pipe_desc, "xvimagesink name=sink ");
g_string_append (pipe_desc, "interaudiosrc ! queue ! ");
g_string_append (pipe_desc, "alsasink latency-time=100000000 ");
if (verbose)
g_print ("pipeline: %s\n", pipe_desc->str);
pipeline = (GstElement *) gst_parse_launch (pipe_desc->str, &error);
g_string_free (pipe_desc, FALSE);
if (error) {
g_print ("pipeline parsing error: %s\n", error->message);
gst_object_unref (pipeline);
return;
}
intertest->pipeline = pipeline;
gst_pipeline_set_auto_flush_bus (GST_PIPELINE (pipeline), FALSE);
intertest->bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
gst_bus_add_watch (intertest->bus, gst_inter_test_handle_message, intertest);
intertest->source_element =
gst_bin_get_by_name (GST_BIN (pipeline), "source");
intertest->sink_element = gst_bin_get_by_name (GST_BIN (pipeline), "sink");
}
void
gst_inter_test_start (GstInterTest * intertest)
{
gst_element_set_state (intertest->pipeline, GST_STATE_READY);
intertest->timer_id = g_timeout_add (1000, onesecond_timer, intertest);
}
void
gst_inter_test_stop (GstInterTest * intertest)
{
gst_element_set_state (intertest->pipeline, GST_STATE_NULL);
g_source_remove (intertest->timer_id);
}
static void
gst_inter_test_handle_eos (GstInterTest * intertest)
{
gst_inter_test_stop (intertest);
}
static void
gst_inter_test_handle_error (GstInterTest * intertest, GError * error,
const char *debug)
{
g_print ("error: %s\n", error->message);
gst_inter_test_stop (intertest);
}
static void
gst_inter_test_handle_warning (GstInterTest * intertest, GError * error,
const char *debug)
{
g_print ("warning: %s\n", error->message);
}
static void
gst_inter_test_handle_info (GstInterTest * intertest, GError * error,
const char *debug)
{
g_print ("info: %s\n", error->message);
}
static void
gst_inter_test_handle_null_to_ready (GstInterTest * intertest)
{
gst_element_set_state (intertest->pipeline, GST_STATE_PAUSED);
}
static void
gst_inter_test_handle_ready_to_paused (GstInterTest * intertest)
{
if (!intertest->paused_for_buffering) {
gst_element_set_state (intertest->pipeline, GST_STATE_PLAYING);
}
}
static void
gst_inter_test_handle_paused_to_playing (GstInterTest * intertest)
{
}
static void
gst_inter_test_handle_playing_to_paused (GstInterTest * intertest)
{
}
static void
gst_inter_test_handle_paused_to_ready (GstInterTest * intertest)
{
}
static void
gst_inter_test_handle_ready_to_null (GstInterTest * intertest)
{
g_main_loop_quit (intertest->main_loop);
}
static gboolean
gst_inter_test_handle_message (GstBus * bus, GstMessage * message,
gpointer data)
{
GstInterTest *intertest = (GstInterTest *) data;
switch (GST_MESSAGE_TYPE (message)) {
case GST_MESSAGE_EOS:
gst_inter_test_handle_eos (intertest);
break;
case GST_MESSAGE_ERROR:
{
GError *error = NULL;
gchar *debug;
gst_message_parse_error (message, &error, &debug);
gst_inter_test_handle_error (intertest, error, debug);
}
break;
case GST_MESSAGE_WARNING:
{
GError *error = NULL;
gchar *debug;
gst_message_parse_warning (message, &error, &debug);
gst_inter_test_handle_warning (intertest, error, debug);
}
break;
case GST_MESSAGE_INFO:
{
GError *error = NULL;
gchar *debug;
gst_message_parse_info (message, &error, &debug);
gst_inter_test_handle_info (intertest, error, debug);
}
break;
case GST_MESSAGE_TAG:
{
GstTagList *tag_list;
gst_message_parse_tag (message, &tag_list);
if (verbose)
g_print ("tag\n");
}
break;
case GST_MESSAGE_STATE_CHANGED:
{
GstState oldstate, newstate, pending;
gst_message_parse_state_changed (message, &oldstate, &newstate, &pending);
if (GST_ELEMENT (message->src) == intertest->pipeline) {
if (verbose)
g_print ("state change from %s to %s\n",
gst_element_state_get_name (oldstate),
gst_element_state_get_name (newstate));
switch (GST_STATE_TRANSITION (oldstate, newstate)) {
case GST_STATE_CHANGE_NULL_TO_READY:
gst_inter_test_handle_null_to_ready (intertest);
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_inter_test_handle_ready_to_paused (intertest);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
gst_inter_test_handle_paused_to_playing (intertest);
break;
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
gst_inter_test_handle_playing_to_paused (intertest);
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_inter_test_handle_paused_to_ready (intertest);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
gst_inter_test_handle_ready_to_null (intertest);
break;
default:
if (verbose)
g_print ("unknown state change from %s to %s\n",
gst_element_state_get_name (oldstate),
gst_element_state_get_name (newstate));
}
}
}
break;
case GST_MESSAGE_BUFFERING:
{
int percent;
gst_message_parse_buffering (message, &percent);
//g_print("buffering %d\n", percent);
if (!intertest->paused_for_buffering && percent < 100) {
g_print ("pausing for buffing\n");
intertest->paused_for_buffering = TRUE;
gst_element_set_state (intertest->pipeline, GST_STATE_PAUSED);
} else if (intertest->paused_for_buffering && percent == 100) {
g_print ("unpausing for buffing\n");
intertest->paused_for_buffering = FALSE;
gst_element_set_state (intertest->pipeline, GST_STATE_PLAYING);
}
}
break;
case GST_MESSAGE_STATE_DIRTY:
case GST_MESSAGE_CLOCK_PROVIDE:
case GST_MESSAGE_CLOCK_LOST:
case GST_MESSAGE_NEW_CLOCK:
case GST_MESSAGE_STRUCTURE_CHANGE:
case GST_MESSAGE_STREAM_STATUS:
break;
case GST_MESSAGE_STEP_DONE:
case GST_MESSAGE_APPLICATION:
case GST_MESSAGE_ELEMENT:
case GST_MESSAGE_SEGMENT_START:
case GST_MESSAGE_SEGMENT_DONE:
case GST_MESSAGE_DURATION:
case GST_MESSAGE_LATENCY:
case GST_MESSAGE_ASYNC_START:
case GST_MESSAGE_ASYNC_DONE:
case GST_MESSAGE_REQUEST_STATE:
case GST_MESSAGE_STEP_START:
default:
if (verbose) {
g_print ("message: %s\n", GST_MESSAGE_TYPE_NAME (message));
}
break;
case GST_MESSAGE_QOS:
break;
}
return TRUE;
}
static gboolean
onesecond_timer (gpointer priv)
{
//GstInterTest *intertest = (GstInterTest *)priv;
g_print (".\n");
return TRUE;
}
/* helper functions */
#if 0
gboolean
have_element (const gchar * element_name)
{
GstPluginFeature *feature;
feature = gst_default_registry_find_feature (element_name,
GST_TYPE_ELEMENT_FACTORY);
if (feature) {
g_object_unref (feature);
return TRUE;
}
return FALSE;
}
#endif

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/* GStreamer
* Copyright (C) 2011 David A. Schleef <ds@schleef.org>
*
* 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 Street, Suite 500,
* Boston, MA 02110-1335, USA.
*/
/**
* SECTION:element-gstintervideosink
*
* The intervideosink element does FIXME stuff.
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch -v fakesrc ! intervideosink ! FIXME ! fakesink
* ]|
* FIXME Describe what the pipeline does.
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/base/gstbasesink.h>
#include <gst/video/video.h>
#include "gstintervideosink.h"
GST_DEBUG_CATEGORY_STATIC (gst_inter_video_sink_debug_category);
#define GST_CAT_DEFAULT gst_inter_video_sink_debug_category
/* prototypes */
static void gst_inter_video_sink_set_property (GObject * object,
guint property_id, const GValue * value, GParamSpec * pspec);
static void gst_inter_video_sink_get_property (GObject * object,
guint property_id, GValue * value, GParamSpec * pspec);
static void gst_inter_video_sink_dispose (GObject * object);
static void gst_inter_video_sink_finalize (GObject * object);
static GstCaps *gst_inter_video_sink_get_caps (GstBaseSink * sink);
static gboolean gst_inter_video_sink_set_caps (GstBaseSink * sink,
GstCaps * caps);
static GstFlowReturn gst_inter_video_sink_buffer_alloc (GstBaseSink * sink,
guint64 offset, guint size, GstCaps * caps, GstBuffer ** buf);
static void gst_inter_video_sink_get_times (GstBaseSink * sink,
GstBuffer * buffer, GstClockTime * start, GstClockTime * end);
static gboolean gst_inter_video_sink_start (GstBaseSink * sink);
static gboolean gst_inter_video_sink_stop (GstBaseSink * sink);
static gboolean gst_inter_video_sink_unlock (GstBaseSink * sink);
static gboolean gst_inter_video_sink_event (GstBaseSink * sink,
GstEvent * event);
static GstFlowReturn gst_inter_video_sink_preroll (GstBaseSink * sink,
GstBuffer * buffer);
static GstFlowReturn gst_inter_video_sink_render (GstBaseSink * sink,
GstBuffer * buffer);
static GstStateChangeReturn gst_inter_video_sink_async_play (GstBaseSink *
sink);
static gboolean gst_inter_video_sink_activate_pull (GstBaseSink * sink,
gboolean active);
static gboolean gst_inter_video_sink_unlock_stop (GstBaseSink * sink);
enum
{
PROP_0
};
/* pad templates */
static GstStaticPadTemplate gst_inter_video_sink_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420"))
);
/* class initialization */
#define DEBUG_INIT(bla) \
GST_DEBUG_CATEGORY_INIT (gst_inter_video_sink_debug_category, "intervideosink", 0, \
"debug category for intervideosink element");
GST_BOILERPLATE_FULL (GstInterVideoSink, gst_inter_video_sink, GstBaseSink,
GST_TYPE_BASE_SINK, DEBUG_INIT);
static void
gst_inter_video_sink_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_inter_video_sink_sink_template));
gst_element_class_set_details_simple (element_class, "FIXME Long name",
"Generic", "FIXME Description", "FIXME <fixme@example.com>");
}
static void
gst_inter_video_sink_class_init (GstInterVideoSinkClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstBaseSinkClass *base_sink_class = GST_BASE_SINK_CLASS (klass);
gobject_class->set_property = gst_inter_video_sink_set_property;
gobject_class->get_property = gst_inter_video_sink_get_property;
gobject_class->dispose = gst_inter_video_sink_dispose;
gobject_class->finalize = gst_inter_video_sink_finalize;
base_sink_class->get_caps = GST_DEBUG_FUNCPTR (gst_inter_video_sink_get_caps);
base_sink_class->set_caps = GST_DEBUG_FUNCPTR (gst_inter_video_sink_set_caps);
if (0)
base_sink_class->buffer_alloc =
GST_DEBUG_FUNCPTR (gst_inter_video_sink_buffer_alloc);
base_sink_class->get_times =
GST_DEBUG_FUNCPTR (gst_inter_video_sink_get_times);
base_sink_class->start = GST_DEBUG_FUNCPTR (gst_inter_video_sink_start);
base_sink_class->stop = GST_DEBUG_FUNCPTR (gst_inter_video_sink_stop);
base_sink_class->unlock = GST_DEBUG_FUNCPTR (gst_inter_video_sink_unlock);
if (0)
base_sink_class->event = GST_DEBUG_FUNCPTR (gst_inter_video_sink_event);
//if (0)
base_sink_class->preroll = GST_DEBUG_FUNCPTR (gst_inter_video_sink_preroll);
base_sink_class->render = GST_DEBUG_FUNCPTR (gst_inter_video_sink_render);
if (0)
base_sink_class->async_play =
GST_DEBUG_FUNCPTR (gst_inter_video_sink_async_play);
if (0)
base_sink_class->activate_pull =
GST_DEBUG_FUNCPTR (gst_inter_video_sink_activate_pull);
base_sink_class->unlock_stop =
GST_DEBUG_FUNCPTR (gst_inter_video_sink_unlock_stop);
}
static void
gst_inter_video_sink_init (GstInterVideoSink * intervideosink,
GstInterVideoSinkClass * intervideosink_class)
{
intervideosink->sinkpad =
gst_pad_new_from_static_template (&gst_inter_video_sink_sink_template,
"sink");
intervideosink->surface = gst_inter_surface_get ("default");
}
void
gst_inter_video_sink_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
/* GstInterVideoSink *intervideosink = GST_INTER_VIDEO_SINK (object); */
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gst_inter_video_sink_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
/* GstInterVideoSink *intervideosink = GST_INTER_VIDEO_SINK (object); */
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gst_inter_video_sink_dispose (GObject * object)
{
/* GstInterVideoSink *intervideosink = GST_INTER_VIDEO_SINK (object); */
/* clean up as possible. may be called multiple times */
G_OBJECT_CLASS (parent_class)->dispose (object);
}
void
gst_inter_video_sink_finalize (GObject * object)
{
/* GstInterVideoSink *intervideosink = GST_INTER_VIDEO_SINK (object); */
/* clean up object here */
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GstCaps *
gst_inter_video_sink_get_caps (GstBaseSink * sink)
{
return NULL;
}
static gboolean
gst_inter_video_sink_set_caps (GstBaseSink * sink, GstCaps * caps)
{
return TRUE;
}
static GstFlowReturn
gst_inter_video_sink_buffer_alloc (GstBaseSink * sink, guint64 offset,
guint size, GstCaps * caps, GstBuffer ** buf)
{
return GST_FLOW_ERROR;
}
static void
gst_inter_video_sink_get_times (GstBaseSink * sink, GstBuffer * buffer,
GstClockTime * start, GstClockTime * end)
{
GstInterVideoSink *intervideosink = GST_INTER_VIDEO_SINK (sink);
if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer)) {
*start = GST_BUFFER_TIMESTAMP (buffer);
if (GST_BUFFER_DURATION_IS_VALID (buffer)) {
*end = *start + GST_BUFFER_DURATION (buffer);
} else {
if (intervideosink->fps_n > 0) {
*end = *start +
gst_util_uint64_scale_int (GST_SECOND, intervideosink->fps_d,
intervideosink->fps_n);
}
}
}
}
static gboolean
gst_inter_video_sink_start (GstBaseSink * sink)
{
return TRUE;
}
static gboolean
gst_inter_video_sink_stop (GstBaseSink * sink)
{
GstInterVideoSink *intervideosink = GST_INTER_VIDEO_SINK (sink);
g_mutex_lock (intervideosink->surface->mutex);
if (intervideosink->surface->video_buffer) {
gst_buffer_unref (intervideosink->surface->video_buffer);
}
intervideosink->surface->video_buffer = NULL;
g_mutex_unlock (intervideosink->surface->mutex);
return TRUE;
}
static gboolean
gst_inter_video_sink_unlock (GstBaseSink * sink)
{
return TRUE;
}
static gboolean
gst_inter_video_sink_event (GstBaseSink * sink, GstEvent * event)
{
return TRUE;
}
static GstFlowReturn
gst_inter_video_sink_preroll (GstBaseSink * sink, GstBuffer * buffer)
{
//return gst_inter_video_sink_render (sink, buffer);
return GST_FLOW_OK;
}
static GstFlowReturn
gst_inter_video_sink_render (GstBaseSink * sink, GstBuffer * buffer)
{
GstInterVideoSink *intervideosink = GST_INTER_VIDEO_SINK (sink);
g_mutex_lock (intervideosink->surface->mutex);
if (intervideosink->surface->video_buffer) {
gst_buffer_unref (intervideosink->surface->video_buffer);
}
intervideosink->surface->video_buffer = gst_buffer_ref (buffer);
intervideosink->surface->video_buffer_count = 0;
g_mutex_unlock (intervideosink->surface->mutex);
return GST_FLOW_OK;
}
static GstStateChangeReturn
gst_inter_video_sink_async_play (GstBaseSink * sink)
{
return GST_STATE_CHANGE_SUCCESS;
}
static gboolean
gst_inter_video_sink_activate_pull (GstBaseSink * sink, gboolean active)
{
return TRUE;
}
static gboolean
gst_inter_video_sink_unlock_stop (GstBaseSink * sink)
{
return TRUE;
}

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/* GStreamer
* Copyright (C) 2011 David A. Schleef <ds@schleef.org>
*
* 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.
*/
#ifndef _GST_INTER_VIDEO_SINK_H_
#define _GST_INTER_VIDEO_SINK_H_
#include <gst/base/gstbasesink.h>
#include "gstintersurface.h"
G_BEGIN_DECLS
#define GST_TYPE_INTER_VIDEO_SINK (gst_inter_video_sink_get_type())
#define GST_INTER_VIDEO_SINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_INTER_VIDEO_SINK,GstInterVideoSink))
#define GST_INTER_VIDEO_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_INTER_VIDEO_SINK,GstInterVideoSinkClass))
#define GST_IS_INTER_VIDEO_SINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_INTER_VIDEO_SINK))
#define GST_IS_INTER_VIDEO_SINK_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_INTER_VIDEO_SINK))
typedef struct _GstInterVideoSink GstInterVideoSink;
typedef struct _GstInterVideoSinkClass GstInterVideoSinkClass;
struct _GstInterVideoSink
{
GstBaseSink base_intervideosink;
GstInterSurface *surface;
GstPad *sinkpad;
int fps_n;
int fps_d;
};
struct _GstInterVideoSinkClass
{
GstBaseSinkClass base_intervideosink_class;
};
GType gst_inter_video_sink_get_type (void);
G_END_DECLS
#endif

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/* GStreamer
* Copyright (C) 2011 David A. Schleef <ds@schleef.org>
*
* 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 Street, Suite 500,
* Boston, MA 02110-1335, USA.
*/
/**
* SECTION:element-gstintervideosrc
*
* The intervideosrc element does FIXME stuff.
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch -v fakesrc ! intervideosrc ! FIXME ! fakesink
* ]|
* FIXME Describe what the pipeline does.
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/base/gstbasesrc.h>
#include <gst/video/video.h>
#include "gstintervideosrc.h"
#include <string.h>
GST_DEBUG_CATEGORY_STATIC (gst_inter_video_src_debug_category);
#define GST_CAT_DEFAULT gst_inter_video_src_debug_category
/* prototypes */
static void gst_inter_video_src_set_property (GObject * object,
guint property_id, const GValue * value, GParamSpec * pspec);
static void gst_inter_video_src_get_property (GObject * object,
guint property_id, GValue * value, GParamSpec * pspec);
static void gst_inter_video_src_dispose (GObject * object);
static void gst_inter_video_src_finalize (GObject * object);
static GstCaps *gst_inter_video_src_get_caps (GstBaseSrc * src);
static gboolean gst_inter_video_src_set_caps (GstBaseSrc * src, GstCaps * caps);
static gboolean gst_inter_video_src_negotiate (GstBaseSrc * src);
static gboolean gst_inter_video_src_newsegment (GstBaseSrc * src);
static gboolean gst_inter_video_src_start (GstBaseSrc * src);
static gboolean gst_inter_video_src_stop (GstBaseSrc * src);
static void
gst_inter_video_src_get_times (GstBaseSrc * src, GstBuffer * buffer,
GstClockTime * start, GstClockTime * end);
static gboolean gst_inter_video_src_is_seekable (GstBaseSrc * src);
static gboolean gst_inter_video_src_unlock (GstBaseSrc * src);
static gboolean gst_inter_video_src_event (GstBaseSrc * src, GstEvent * event);
static GstFlowReturn
gst_inter_video_src_create (GstBaseSrc * src, guint64 offset, guint size,
GstBuffer ** buf);
static gboolean gst_inter_video_src_do_seek (GstBaseSrc * src,
GstSegment * segment);
static gboolean gst_inter_video_src_query (GstBaseSrc * src, GstQuery * query);
static gboolean gst_inter_video_src_check_get_range (GstBaseSrc * src);
static void gst_inter_video_src_fixate (GstBaseSrc * src, GstCaps * caps);
static gboolean gst_inter_video_src_unlock_stop (GstBaseSrc * src);
static gboolean
gst_inter_video_src_prepare_seek_segment (GstBaseSrc * src, GstEvent * seek,
GstSegment * segment);
enum
{
PROP_0
};
/* pad templates */
static GstStaticPadTemplate gst_inter_video_src_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420"))
);
/* class initialization */
#define DEBUG_INIT(bla) \
GST_DEBUG_CATEGORY_INIT (gst_inter_video_src_debug_category, "intervideosrc", 0, \
"debug category for intervideosrc element");
GST_BOILERPLATE_FULL (GstInterVideoSrc, gst_inter_video_src, GstBaseSrc,
GST_TYPE_BASE_SRC, DEBUG_INIT);
static void
gst_inter_video_src_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_inter_video_src_src_template));
gst_element_class_set_details_simple (element_class, "FIXME Long name",
"Generic", "FIXME Description", "FIXME <fixme@example.com>");
}
static void
gst_inter_video_src_class_init (GstInterVideoSrcClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstBaseSrcClass *base_src_class = GST_BASE_SRC_CLASS (klass);
gobject_class->set_property = gst_inter_video_src_set_property;
gobject_class->get_property = gst_inter_video_src_get_property;
gobject_class->dispose = gst_inter_video_src_dispose;
gobject_class->finalize = gst_inter_video_src_finalize;
if (0)
base_src_class->get_caps = GST_DEBUG_FUNCPTR (gst_inter_video_src_get_caps);
base_src_class->set_caps = GST_DEBUG_FUNCPTR (gst_inter_video_src_set_caps);
if (0)
base_src_class->negotiate =
GST_DEBUG_FUNCPTR (gst_inter_video_src_negotiate);
if (0)
base_src_class->newsegment =
GST_DEBUG_FUNCPTR (gst_inter_video_src_newsegment);
base_src_class->start = GST_DEBUG_FUNCPTR (gst_inter_video_src_start);
base_src_class->stop = GST_DEBUG_FUNCPTR (gst_inter_video_src_stop);
base_src_class->get_times = GST_DEBUG_FUNCPTR (gst_inter_video_src_get_times);
if (0)
base_src_class->is_seekable =
GST_DEBUG_FUNCPTR (gst_inter_video_src_is_seekable);
base_src_class->unlock = GST_DEBUG_FUNCPTR (gst_inter_video_src_unlock);
base_src_class->event = GST_DEBUG_FUNCPTR (gst_inter_video_src_event);
base_src_class->create = GST_DEBUG_FUNCPTR (gst_inter_video_src_create);
if (0)
base_src_class->do_seek = GST_DEBUG_FUNCPTR (gst_inter_video_src_do_seek);
base_src_class->query = GST_DEBUG_FUNCPTR (gst_inter_video_src_query);
if (0)
base_src_class->check_get_range =
GST_DEBUG_FUNCPTR (gst_inter_video_src_check_get_range);
base_src_class->fixate = GST_DEBUG_FUNCPTR (gst_inter_video_src_fixate);
if (0)
base_src_class->unlock_stop =
GST_DEBUG_FUNCPTR (gst_inter_video_src_unlock_stop);
if (0)
base_src_class->prepare_seek_segment =
GST_DEBUG_FUNCPTR (gst_inter_video_src_prepare_seek_segment);
}
static void
gst_inter_video_src_init (GstInterVideoSrc * intervideosrc,
GstInterVideoSrcClass * intervideosrc_class)
{
intervideosrc->srcpad =
gst_pad_new_from_static_template (&gst_inter_video_src_src_template,
"src");
gst_base_src_set_format (GST_BASE_SRC (intervideosrc), GST_FORMAT_TIME);
gst_base_src_set_live (GST_BASE_SRC (intervideosrc), TRUE);
intervideosrc->surface = gst_inter_surface_get ("default");
}
void
gst_inter_video_src_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
/* GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (object); */
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gst_inter_video_src_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
/* GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (object); */
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gst_inter_video_src_dispose (GObject * object)
{
/* GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (object); */
/* clean up as possible. may be called multiple times */
G_OBJECT_CLASS (parent_class)->dispose (object);
}
void
gst_inter_video_src_finalize (GObject * object)
{
/* GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (object); */
/* clean up object here */
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GstCaps *
gst_inter_video_src_get_caps (GstBaseSrc * src)
{
GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (src);
GST_DEBUG_OBJECT (intervideosrc, "get_caps");
return NULL;
}
static gboolean
gst_inter_video_src_set_caps (GstBaseSrc * src, GstCaps * caps)
{
GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (src);
gboolean ret;
GstVideoFormat format;
int width, height;
int fps_n, fps_d;
GST_DEBUG_OBJECT (intervideosrc, "set_caps");
ret = gst_video_format_parse_caps (caps, &format, &width, &height);
ret &= gst_video_parse_caps_framerate (caps, &fps_n, &fps_d);
if (ret) {
intervideosrc->format = format;
intervideosrc->width = width;
intervideosrc->height = height;
intervideosrc->fps_n = fps_n;
intervideosrc->fps_d = fps_d;
GST_DEBUG ("fps %d/%d", fps_n, fps_d);
}
return ret;
}
static gboolean
gst_inter_video_src_negotiate (GstBaseSrc * src)
{
GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (src);
GST_DEBUG_OBJECT (intervideosrc, "negotiate");
return TRUE;
}
static gboolean
gst_inter_video_src_newsegment (GstBaseSrc * src)
{
GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (src);
GST_DEBUG_OBJECT (intervideosrc, "newsegment");
return TRUE;
}
static gboolean
gst_inter_video_src_start (GstBaseSrc * src)
{
GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (src);
GST_DEBUG_OBJECT (intervideosrc, "start");
return TRUE;
}
static gboolean
gst_inter_video_src_stop (GstBaseSrc * src)
{
GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (src);
GST_DEBUG_OBJECT (intervideosrc, "stop");
return TRUE;
}
static void
gst_inter_video_src_get_times (GstBaseSrc * src, GstBuffer * buffer,
GstClockTime * start, GstClockTime * end)
{
GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (src);
GST_DEBUG_OBJECT (intervideosrc, "get_times");
/* for live sources, sync on the timestamp of the buffer */
if (gst_base_src_is_live (src)) {
GstClockTime timestamp = GST_BUFFER_TIMESTAMP (buffer);
if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
/* get duration to calculate end time */
GstClockTime duration = GST_BUFFER_DURATION (buffer);
if (GST_CLOCK_TIME_IS_VALID (duration)) {
*end = timestamp + duration;
}
*start = timestamp;
}
} else {
*start = -1;
*end = -1;
}
}
static gboolean
gst_inter_video_src_is_seekable (GstBaseSrc * src)
{
GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (src);
GST_DEBUG_OBJECT (intervideosrc, "is_seekable");
return FALSE;
}
static gboolean
gst_inter_video_src_unlock (GstBaseSrc * src)
{
GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (src);
GST_DEBUG_OBJECT (intervideosrc, "unlock");
return TRUE;
}
static gboolean
gst_inter_video_src_event (GstBaseSrc * src, GstEvent * event)
{
GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (src);
GST_DEBUG_OBJECT (intervideosrc, "event");
return TRUE;
}
static GstFlowReturn
gst_inter_video_src_create (GstBaseSrc * src, guint64 offset, guint size,
GstBuffer ** buf)
{
GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (src);
GstBuffer *buffer;
guint8 *data;
GST_DEBUG_OBJECT (intervideosrc, "create");
buffer = NULL;
g_mutex_lock (intervideosrc->surface->mutex);
if (intervideosrc->surface->video_buffer) {
buffer = gst_buffer_ref (intervideosrc->surface->video_buffer);
intervideosrc->surface->video_buffer_count++;
if (intervideosrc->surface->video_buffer_count >= 30) {
gst_buffer_unref (intervideosrc->surface->video_buffer);
intervideosrc->surface->video_buffer = NULL;
}
}
g_mutex_unlock (intervideosrc->surface->mutex);
if (buffer == NULL) {
buffer =
gst_buffer_new_and_alloc (gst_video_format_get_size
(intervideosrc->format, intervideosrc->width, intervideosrc->height));
data = GST_BUFFER_DATA (buffer);
memset (data, 16,
gst_video_format_get_row_stride (intervideosrc->format, 0,
intervideosrc->width) *
gst_video_format_get_component_height (intervideosrc->format, 0,
intervideosrc->height));
memset (data + gst_video_format_get_component_offset (intervideosrc->format,
1, intervideosrc->width, intervideosrc->height),
128,
2 * gst_video_format_get_row_stride (intervideosrc->format, 1,
intervideosrc->width) *
gst_video_format_get_component_height (intervideosrc->format, 1,
intervideosrc->height));
#if 0
{
int i;
for (i = 0; i < 10000; i++) {
data[i] = g_random_int () & 0xff;
}
}
#endif
}
buffer = gst_buffer_make_metadata_writable (buffer);
GST_BUFFER_TIMESTAMP (buffer) =
gst_util_uint64_scale_int (GST_SECOND * intervideosrc->n_frames,
intervideosrc->fps_d, intervideosrc->fps_n);
GST_DEBUG_OBJECT (intervideosrc, "create ts %" GST_TIME_FORMAT,
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)));
GST_BUFFER_DURATION (buffer) =
gst_util_uint64_scale_int (GST_SECOND * (intervideosrc->n_frames + 1),
intervideosrc->fps_d,
intervideosrc->fps_n) - GST_BUFFER_TIMESTAMP (buffer);
GST_BUFFER_OFFSET (buffer) = intervideosrc->n_frames;
GST_BUFFER_OFFSET_END (buffer) = -1;
GST_BUFFER_FLAG_UNSET (buffer, GST_BUFFER_FLAG_DISCONT);
if (intervideosrc->n_frames == 0) {
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
}
gst_buffer_set_caps (buffer, GST_PAD_CAPS (GST_BASE_SRC_PAD (intervideosrc)));
intervideosrc->n_frames++;
*buf = buffer;
return GST_FLOW_OK;
}
static gboolean
gst_inter_video_src_do_seek (GstBaseSrc * src, GstSegment * segment)
{
GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (src);
GST_DEBUG_OBJECT (intervideosrc, "do_seek");
return FALSE;
}
static gboolean
gst_inter_video_src_query (GstBaseSrc * src, GstQuery * query)
{
GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (src);
GST_DEBUG_OBJECT (intervideosrc, "query");
return TRUE;
}
static gboolean
gst_inter_video_src_check_get_range (GstBaseSrc * src)
{
GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (src);
GST_DEBUG_OBJECT (intervideosrc, "get_range");
return FALSE;
}
static void
gst_inter_video_src_fixate (GstBaseSrc * src, GstCaps * caps)
{
GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (src);
GstStructure *structure;
GST_DEBUG_OBJECT (intervideosrc, "fixate");
structure = gst_caps_get_structure (caps, 0);
gst_structure_fixate_field_nearest_int (structure, "width", 320);
gst_structure_fixate_field_nearest_int (structure, "height", 240);
gst_structure_fixate_field_nearest_fraction (structure, "framerate", 30, 1);
if (gst_structure_has_field (structure, "pixel-aspect-ratio"))
gst_structure_fixate_field_nearest_fraction (structure,
"pixel-aspect-ratio", 1, 1);
if (gst_structure_has_field (structure, "color-matrix"))
gst_structure_fixate_field_string (structure, "color-matrix", "sdtv");
if (gst_structure_has_field (structure, "chroma-site"))
gst_structure_fixate_field_string (structure, "chroma-site", "mpeg2");
if (gst_structure_has_field (structure, "interlaced"))
gst_structure_fixate_field_boolean (structure, "interlaced", FALSE);
}
static gboolean
gst_inter_video_src_unlock_stop (GstBaseSrc * src)
{
GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (src);
GST_DEBUG_OBJECT (intervideosrc, "stop");
return TRUE;
}
static gboolean
gst_inter_video_src_prepare_seek_segment (GstBaseSrc * src, GstEvent * seek,
GstSegment * segment)
{
GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (src);
GST_DEBUG_OBJECT (intervideosrc, "seek_segment");
return FALSE;
}

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gst/inter/gstintervideosrc.h Normal file
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/* GStreamer
* Copyright (C) 2011 David A. Schleef <ds@schleef.org>
*
* 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.
*/
#ifndef _GST_INTER_VIDEO_SRC_H_
#define _GST_INTER_VIDEO_SRC_H_
#include <gst/base/gstbasesrc.h>
#include <gst/video/video.h>
#include "gstintersurface.h"
G_BEGIN_DECLS
#define GST_TYPE_INTER_VIDEO_SRC (gst_inter_video_src_get_type())
#define GST_INTER_VIDEO_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_INTER_VIDEO_SRC,GstInterVideoSrc))
#define GST_INTER_VIDEO_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_INTER_VIDEO_SRC,GstInterVideoSrcClass))
#define GST_IS_INTER_VIDEO_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_INTER_VIDEO_SRC))
#define GST_IS_INTER_VIDEO_SRC_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_INTER_VIDEO_SRC))
typedef struct _GstInterVideoSrc GstInterVideoSrc;
typedef struct _GstInterVideoSrcClass GstInterVideoSrcClass;
struct _GstInterVideoSrc
{
GstBaseSrc base_intervideosrc;
GstPad *srcpad;
GstInterSurface *surface;
GstVideoFormat format;
int fps_n;
int fps_d;
int n_frames;
int width;
int height;
};
struct _GstInterVideoSrcClass
{
GstBaseSrcClass base_intervideosrc_class;
};
GType gst_inter_video_src_get_type (void);
G_END_DECLS
#endif