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inter: Add subtitle inter elements

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This commit is contained in:
David Schleef 2011-08-09 09:19:10 -07:00
parent 6786f8c7bf
commit f02ee5b403
7 changed files with 910 additions and 1 deletions
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4
gst/inter/Makefile.am
View file

@ -5,6 +5,8 @@ noinst_PROGRAMS = gstintertest
libgstinter_la_SOURCES = \
gstinteraudiosink.c \
gstinteraudiosrc.c \
gstintersubsink.c \
gstintersubsrc.c \
gstintervideosink.c \
gstintervideosrc.c \
gstinter.c \
@ -13,6 +15,8 @@ libgstinter_la_SOURCES = \
noinst_HEADERS = \
gstinteraudiosink.h \
gstinteraudiosrc.h \
gstintersubsink.h \
gstintersubsrc.h \
gstintervideosink.h \
gstintervideosrc.h \
gstintersurface.h

8
gst/inter/gstinter.c
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@ -1,5 +1,5 @@
/* GStreamer
* Copyright (C) 2011 David A. Schleef <ds@schleef.org>
* Copyright (C) 2011 David Schleef <ds@entropywave.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
@ -23,6 +23,8 @@
#include "gstinteraudiosrc.h"
#include "gstinteraudiosink.h"
#include "gstintersubsrc.h"
#include "gstintersubsink.h"
#include "gstintervideosrc.h"
#include "gstintervideosink.h"
#include "gstintersurface.h"
@ -34,6 +36,10 @@ plugin_init (GstPlugin * plugin)
GST_TYPE_INTER_AUDIO_SRC);
gst_element_register (plugin, "interaudiosink", GST_RANK_NONE,
GST_TYPE_INTER_AUDIO_SINK);
gst_element_register (plugin, "intersubsrc", GST_RANK_NONE,
GST_TYPE_INTER_SUB_SRC);
gst_element_register (plugin, "intersubsink", GST_RANK_NONE,
GST_TYPE_INTER_SUB_SINK);
gst_element_register (plugin, "intervideosrc", GST_RANK_NONE,
GST_TYPE_INTER_VIDEO_SRC);
gst_element_register (plugin, "intervideosink", GST_RANK_NONE,

329
gst/inter/gstintersubsink.c Normal file
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@ -0,0 +1,329 @@
/* GStreamer
* Copyright (C) 2011 David Schleef <ds@entropywave.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.
*/
/**
* SECTION:element-gstintersubsink
*
* The intersubsink element does FIXME stuff.
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch -v fakesrc ! intersubsink ! 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 "gstintersubsink.h"
GST_DEBUG_CATEGORY_STATIC (gst_inter_sub_sink_debug_category);
#define GST_CAT_DEFAULT gst_inter_sub_sink_debug_category
/* prototypes */
static void gst_inter_sub_sink_set_property (GObject * object,
guint property_id, const GValue * value, GParamSpec * pspec);
static void gst_inter_sub_sink_get_property (GObject * object,
guint property_id, GValue * value, GParamSpec * pspec);
static void gst_inter_sub_sink_dispose (GObject * object);
static void gst_inter_sub_sink_finalize (GObject * object);
static GstCaps *gst_inter_sub_sink_get_caps (GstBaseSink * sink);
static gboolean gst_inter_sub_sink_set_caps (GstBaseSink * sink,
GstCaps * caps);
static GstFlowReturn gst_inter_sub_sink_buffer_alloc (GstBaseSink * sink,
guint64 offset, guint size, GstCaps * caps, GstBuffer ** buf);
static void gst_inter_sub_sink_get_times (GstBaseSink * sink,
GstBuffer * buffer, GstClockTime * start, GstClockTime * end);
static gboolean gst_inter_sub_sink_start (GstBaseSink * sink);
static gboolean gst_inter_sub_sink_stop (GstBaseSink * sink);
static gboolean gst_inter_sub_sink_unlock (GstBaseSink * sink);
static gboolean gst_inter_sub_sink_event (GstBaseSink * sink, GstEvent * event);
static GstFlowReturn
gst_inter_sub_sink_preroll (GstBaseSink * sink, GstBuffer * buffer);
static GstFlowReturn
gst_inter_sub_sink_render (GstBaseSink * sink, GstBuffer * buffer);
static GstStateChangeReturn gst_inter_sub_sink_async_play (GstBaseSink * sink);
static gboolean gst_inter_sub_sink_activate_pull (GstBaseSink * sink,
gboolean active);
static gboolean gst_inter_sub_sink_unlock_stop (GstBaseSink * sink);
enum
{
PROP_0
};
/* pad templates */
static GstStaticPadTemplate gst_inter_sub_sink_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("text/plain")
);
/* class initialization */
#define DEBUG_INIT(bla) \
GST_DEBUG_CATEGORY_INIT (gst_inter_sub_sink_debug_category, "intersubsink", 0, \
"debug category for intersubsink element");
GST_BOILERPLATE_FULL (GstInterSubSink, gst_inter_sub_sink, GstBaseSink,
GST_TYPE_BASE_SINK, DEBUG_INIT);
static void
gst_inter_sub_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_sub_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_sub_sink_class_init (GstInterSubSinkClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstBaseSinkClass *base_sink_class = GST_BASE_SINK_CLASS (klass);
gobject_class->set_property = gst_inter_sub_sink_set_property;
gobject_class->get_property = gst_inter_sub_sink_get_property;
gobject_class->dispose = gst_inter_sub_sink_dispose;
gobject_class->finalize = gst_inter_sub_sink_finalize;
base_sink_class->get_caps = GST_DEBUG_FUNCPTR (gst_inter_sub_sink_get_caps);
base_sink_class->set_caps = GST_DEBUG_FUNCPTR (gst_inter_sub_sink_set_caps);
if (0)
base_sink_class->buffer_alloc =
GST_DEBUG_FUNCPTR (gst_inter_sub_sink_buffer_alloc);
base_sink_class->get_times = GST_DEBUG_FUNCPTR (gst_inter_sub_sink_get_times);
base_sink_class->start = GST_DEBUG_FUNCPTR (gst_inter_sub_sink_start);
base_sink_class->stop = GST_DEBUG_FUNCPTR (gst_inter_sub_sink_stop);
base_sink_class->unlock = GST_DEBUG_FUNCPTR (gst_inter_sub_sink_unlock);
if (0)
base_sink_class->event = GST_DEBUG_FUNCPTR (gst_inter_sub_sink_event);
base_sink_class->preroll = GST_DEBUG_FUNCPTR (gst_inter_sub_sink_preroll);
base_sink_class->render = GST_DEBUG_FUNCPTR (gst_inter_sub_sink_render);
if (0)
base_sink_class->async_play =
GST_DEBUG_FUNCPTR (gst_inter_sub_sink_async_play);
if (0)
base_sink_class->activate_pull =
GST_DEBUG_FUNCPTR (gst_inter_sub_sink_activate_pull);
base_sink_class->unlock_stop =
GST_DEBUG_FUNCPTR (gst_inter_sub_sink_unlock_stop);
}
static void
gst_inter_sub_sink_init (GstInterSubSink * intersubsink,
GstInterSubSinkClass * intersubsink_class)
{
intersubsink->sinkpad =
gst_pad_new_from_static_template (&gst_inter_sub_sink_sink_template,
"sink");
intersubsink->surface = gst_inter_surface_get ("default");
intersubsink->fps_n = 1;
intersubsink->fps_d = 1;
}
void
gst_inter_sub_sink_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
/* GstInterSubSink *intersubsink = GST_INTER_SUB_SINK (object); */
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gst_inter_sub_sink_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
/* GstInterSubSink *intersubsink = GST_INTER_SUB_SINK (object); */
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gst_inter_sub_sink_dispose (GObject * object)
{
/* GstInterSubSink *intersubsink = GST_INTER_SUB_SINK (object); */
/* clean up as possible. may be called multiple times */
G_OBJECT_CLASS (parent_class)->dispose (object);
}
void
gst_inter_sub_sink_finalize (GObject * object)
{
/* GstInterSubSink *intersubsink = GST_INTER_SUB_SINK (object); */
/* clean up object here */
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GstCaps *
gst_inter_sub_sink_get_caps (GstBaseSink * sink)
{
return NULL;
}
static gboolean
gst_inter_sub_sink_set_caps (GstBaseSink * sink, GstCaps * caps)
{
return FALSE;
}
static GstFlowReturn
gst_inter_sub_sink_buffer_alloc (GstBaseSink * sink, guint64 offset, guint size,
GstCaps * caps, GstBuffer ** buf)
{
return GST_FLOW_ERROR;
}
static void
gst_inter_sub_sink_get_times (GstBaseSink * sink, GstBuffer * buffer,
GstClockTime * start, GstClockTime * end)
{
GstInterSubSink *intersubsink = GST_INTER_SUB_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 (intersubsink->fps_n > 0) {
*end = *start +
gst_util_uint64_scale_int (GST_SECOND, intersubsink->fps_d,
intersubsink->fps_n);
}
}
}
}
static gboolean
gst_inter_sub_sink_start (GstBaseSink * sink)
{
return TRUE;
}
static gboolean
gst_inter_sub_sink_stop (GstBaseSink * sink)
{
GstInterSubSink *intersubsink = GST_INTER_SUB_SINK (sink);
g_mutex_lock (intersubsink->surface->mutex);
if (intersubsink->surface->sub_buffer) {
gst_buffer_unref (intersubsink->surface->sub_buffer);
}
intersubsink->surface->sub_buffer = NULL;
g_mutex_unlock (intersubsink->surface->mutex);
return TRUE;
}
static gboolean
gst_inter_sub_sink_unlock (GstBaseSink * sink)
{
return TRUE;
}
static gboolean
gst_inter_sub_sink_event (GstBaseSink * sink, GstEvent * event)
{
return TRUE;
}
static GstFlowReturn
gst_inter_sub_sink_preroll (GstBaseSink * sink, GstBuffer * buffer)
{
return GST_FLOW_OK;
}
static GstFlowReturn
gst_inter_sub_sink_render (GstBaseSink * sink, GstBuffer * buffer)
{
GstInterSubSink *intersubsink = GST_INTER_SUB_SINK (sink);
g_mutex_lock (intersubsink->surface->mutex);
if (intersubsink->surface->sub_buffer) {
gst_buffer_unref (intersubsink->surface->sub_buffer);
}
intersubsink->surface->sub_buffer = gst_buffer_ref (buffer);
//intersubsink->surface->sub_buffer_count = 0;
g_mutex_unlock (intersubsink->surface->mutex);
return GST_FLOW_OK;
}
static GstStateChangeReturn
gst_inter_sub_sink_async_play (GstBaseSink * sink)
{
return GST_STATE_CHANGE_SUCCESS;
}
static gboolean
gst_inter_sub_sink_activate_pull (GstBaseSink * sink, gboolean active)
{
return TRUE;
}
static gboolean
gst_inter_sub_sink_unlock_stop (GstBaseSink * sink)
{
return TRUE;
}

57
gst/inter/gstintersubsink.h Normal file
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@ -0,0 +1,57 @@
/* GStreamer
* Copyright (C) 2011 David Schleef <ds@entropywave.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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef _GST_INTER_SUB_SINK_H_
#define _GST_INTER_SUB_SINK_H_
#include <gst/base/gstbasesink.h>
#include "gstintersurface.h"
G_BEGIN_DECLS
#define GST_TYPE_INTER_SUB_SINK (gst_inter_sub_sink_get_type())
#define GST_INTER_SUB_SINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_INTER_SUB_SINK,GstInterSubSink))
#define GST_INTER_SUB_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_INTER_SUB_SINK,GstInterSubSinkClass))
#define GST_IS_INTER_SUB_SINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_INTER_SUB_SINK))
#define GST_IS_INTER_SUB_SINK_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_INTER_SUB_SINK))
typedef struct _GstInterSubSink GstInterSubSink;
typedef struct _GstInterSubSinkClass GstInterSubSinkClass;
struct _GstInterSubSink
{
GstBaseSink base_intersubsink;
GstPad *sinkpad;
GstInterSurface *surface;
int fps_n;
int fps_d;
};
struct _GstInterSubSinkClass
{
GstBaseSinkClass base_intersubsink_class;
};
GType gst_inter_sub_sink_get_type (void);
G_END_DECLS
#endif

455
gst/inter/gstintersubsrc.c Normal file
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@ -0,0 +1,455 @@
/* GStreamer
* Copyright (C) 2011 David Schleef <ds@entropywave.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.
*/
/**
* SECTION:element-gstintersubsrc
*
* The intersubsrc element is a subtitle source element. It is used
* in connection with a intersubsink element in a different pipeline,
* similar to interaudiosink and interaudiosrc.
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch -v intersubsrc ! kateenc ! oggmux ! filesink location=out.ogv
* ]|
*
* The intersubsrc element cannot be used effectively with gst-launch,
* as it requires a second pipeline in the application to send subtitles.
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/base/gstbasesrc.h>
#include "gstintersubsrc.h"
GST_DEBUG_CATEGORY_STATIC (gst_inter_sub_src_debug_category);
#define GST_CAT_DEFAULT gst_inter_sub_src_debug_category
/* prototypes */
static void gst_inter_sub_src_set_property (GObject * object,
guint property_id, const GValue * value, GParamSpec * pspec);
static void gst_inter_sub_src_get_property (GObject * object,
guint property_id, GValue * value, GParamSpec * pspec);
static void gst_inter_sub_src_dispose (GObject * object);
static void gst_inter_sub_src_finalize (GObject * object);
static GstCaps *gst_inter_sub_src_get_caps (GstBaseSrc * src);
static gboolean gst_inter_sub_src_set_caps (GstBaseSrc * src, GstCaps * caps);
static gboolean gst_inter_sub_src_negotiate (GstBaseSrc * src);
static gboolean gst_inter_sub_src_newsegment (GstBaseSrc * src);
static gboolean gst_inter_sub_src_start (GstBaseSrc * src);
static gboolean gst_inter_sub_src_stop (GstBaseSrc * src);
static void
gst_inter_sub_src_get_times (GstBaseSrc * src, GstBuffer * buffer,
GstClockTime * start, GstClockTime * end);
static gboolean gst_inter_sub_src_is_seekable (GstBaseSrc * src);
static gboolean gst_inter_sub_src_unlock (GstBaseSrc * src);
static gboolean gst_inter_sub_src_event (GstBaseSrc * src, GstEvent * event);
static GstFlowReturn
gst_inter_sub_src_create (GstBaseSrc * src, guint64 offset, guint size,
GstBuffer ** buf);
static gboolean gst_inter_sub_src_do_seek (GstBaseSrc * src,
GstSegment * segment);
static gboolean gst_inter_sub_src_query (GstBaseSrc * src, GstQuery * query);
static gboolean gst_inter_sub_src_check_get_range (GstBaseSrc * src);
static void gst_inter_sub_src_fixate (GstBaseSrc * src, GstCaps * caps);
static gboolean gst_inter_sub_src_unlock_stop (GstBaseSrc * src);
static gboolean
gst_inter_sub_src_prepare_seek_segment (GstBaseSrc * src, GstEvent * seek,
GstSegment * segment);
enum
{
PROP_0
};
/* pad templates */
static GstStaticPadTemplate gst_inter_sub_src_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/unknown")
);
/* class initialization */
#define DEBUG_INIT(bla) \
GST_DEBUG_CATEGORY_INIT (gst_inter_sub_src_debug_category, "intersubsrc", 0, \
"debug category for intersubsrc element");
GST_BOILERPLATE_FULL (GstInterSubSrc, gst_inter_sub_src, GstBaseSrc,
GST_TYPE_BASE_SRC, DEBUG_INIT);
static void
gst_inter_sub_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_sub_src_src_template));
gst_element_class_set_details_simple (element_class,
"Inter-pipeline subtitle source",
"Source/Subtitle", "Inter-pipeline subtitle source",
"David Schleef <ds@entropywave.com>");
}
static void
gst_inter_sub_src_class_init (GstInterSubSrcClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstBaseSrcClass *base_src_class = GST_BASE_SRC_CLASS (klass);
gobject_class->set_property = gst_inter_sub_src_set_property;
gobject_class->get_property = gst_inter_sub_src_get_property;
gobject_class->dispose = gst_inter_sub_src_dispose;
gobject_class->finalize = gst_inter_sub_src_finalize;
if (0)
base_src_class->get_caps = GST_DEBUG_FUNCPTR (gst_inter_sub_src_get_caps);
base_src_class->set_caps = GST_DEBUG_FUNCPTR (gst_inter_sub_src_set_caps);
if (0)
base_src_class->negotiate = GST_DEBUG_FUNCPTR (gst_inter_sub_src_negotiate);
if (0)
base_src_class->newsegment =
GST_DEBUG_FUNCPTR (gst_inter_sub_src_newsegment);
base_src_class->start = GST_DEBUG_FUNCPTR (gst_inter_sub_src_start);
base_src_class->stop = GST_DEBUG_FUNCPTR (gst_inter_sub_src_stop);
base_src_class->get_times = GST_DEBUG_FUNCPTR (gst_inter_sub_src_get_times);
if (0)
base_src_class->is_seekable =
GST_DEBUG_FUNCPTR (gst_inter_sub_src_is_seekable);
base_src_class->unlock = GST_DEBUG_FUNCPTR (gst_inter_sub_src_unlock);
base_src_class->event = GST_DEBUG_FUNCPTR (gst_inter_sub_src_event);
base_src_class->create = GST_DEBUG_FUNCPTR (gst_inter_sub_src_create);
if (0)
base_src_class->do_seek = GST_DEBUG_FUNCPTR (gst_inter_sub_src_do_seek);
base_src_class->query = GST_DEBUG_FUNCPTR (gst_inter_sub_src_query);
if (0)
base_src_class->check_get_range =
GST_DEBUG_FUNCPTR (gst_inter_sub_src_check_get_range);
base_src_class->fixate = GST_DEBUG_FUNCPTR (gst_inter_sub_src_fixate);
if (0)
base_src_class->unlock_stop =
GST_DEBUG_FUNCPTR (gst_inter_sub_src_unlock_stop);
if (0)
base_src_class->prepare_seek_segment =
GST_DEBUG_FUNCPTR (gst_inter_sub_src_prepare_seek_segment);
}
static void
gst_inter_sub_src_init (GstInterSubSrc * intersubsrc,
GstInterSubSrcClass * intersubsrc_class)
{
intersubsrc->srcpad =
gst_pad_new_from_static_template (&gst_inter_sub_src_src_template, "src");
gst_base_src_set_format (GST_BASE_SRC (intersubsrc), GST_FORMAT_TIME);
gst_base_src_set_live (GST_BASE_SRC (intersubsrc), TRUE);
intersubsrc->surface = gst_inter_surface_get ("default");
}
void
gst_inter_sub_src_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
/* GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (object); */
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gst_inter_sub_src_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
/* GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (object); */
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gst_inter_sub_src_dispose (GObject * object)
{
/* GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (object); */
/* clean up as possible. may be called multiple times */
G_OBJECT_CLASS (parent_class)->dispose (object);
}
void
gst_inter_sub_src_finalize (GObject * object)
{
/* GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (object); */
/* clean up object here */
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GstCaps *
gst_inter_sub_src_get_caps (GstBaseSrc * src)
{
GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (src);
GST_DEBUG_OBJECT (intersubsrc, "get_caps");
return NULL;
}
static gboolean
gst_inter_sub_src_set_caps (GstBaseSrc * src, GstCaps * caps)
{
GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (src);
GST_DEBUG_OBJECT (intersubsrc, "set_caps");
return TRUE;
}
static gboolean
gst_inter_sub_src_negotiate (GstBaseSrc * src)
{
GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (src);
GST_DEBUG_OBJECT (intersubsrc, "negotiate");
return TRUE;
}
static gboolean
gst_inter_sub_src_newsegment (GstBaseSrc * src)
{
GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (src);
GST_DEBUG_OBJECT (intersubsrc, "newsegment");
return TRUE;
}
static gboolean
gst_inter_sub_src_start (GstBaseSrc * src)
{
GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (src);
GST_DEBUG_OBJECT (intersubsrc, "start");
return TRUE;
}
static gboolean
gst_inter_sub_src_stop (GstBaseSrc * src)
{
GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (src);
GST_DEBUG_OBJECT (intersubsrc, "stop");
return TRUE;
}
static void
gst_inter_sub_src_get_times (GstBaseSrc * src, GstBuffer * buffer,
GstClockTime * start, GstClockTime * end)
{
GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (src);
GST_DEBUG_OBJECT (intersubsrc, "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_sub_src_is_seekable (GstBaseSrc * src)
{
GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (src);
GST_DEBUG_OBJECT (intersubsrc, "is_seekable");
return FALSE;
}
static gboolean
gst_inter_sub_src_unlock (GstBaseSrc * src)
{
GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (src);
GST_DEBUG_OBJECT (intersubsrc, "unlock");
return TRUE;
}
static gboolean
gst_inter_sub_src_event (GstBaseSrc * src, GstEvent * event)
{
GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (src);
GST_DEBUG_OBJECT (intersubsrc, "event");
return TRUE;
}
static GstFlowReturn
gst_inter_sub_src_create (GstBaseSrc * src, guint64 offset, guint size,
GstBuffer ** buf)
{
GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (src);
GstBuffer *buffer;
GST_DEBUG_OBJECT (intersubsrc, "create");
buffer = NULL;
g_mutex_lock (intersubsrc->surface->mutex);
if (intersubsrc->surface->sub_buffer) {
buffer = gst_buffer_ref (intersubsrc->surface->sub_buffer);
//intersubsrc->surface->sub_buffer_count++;
//if (intersubsrc->surface->sub_buffer_count >= 30) {
gst_buffer_unref (intersubsrc->surface->sub_buffer);
intersubsrc->surface->sub_buffer = NULL;
//}
}
g_mutex_unlock (intersubsrc->surface->mutex);
if (buffer == NULL) {
guint8 *data;
buffer = gst_buffer_new_and_alloc (1);
data = GST_BUFFER_DATA (buffer);
data[0] = 0;
}
buffer = gst_buffer_make_metadata_writable (buffer);
GST_BUFFER_TIMESTAMP (buffer) =
gst_util_uint64_scale_int (GST_SECOND, intersubsrc->n_frames,
intersubsrc->rate);
GST_DEBUG_OBJECT (intersubsrc, "create ts %" GST_TIME_FORMAT,
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)));
GST_BUFFER_DURATION (buffer) =
gst_util_uint64_scale_int (GST_SECOND, (intersubsrc->n_frames + 1),
intersubsrc->rate) - GST_BUFFER_TIMESTAMP (buffer);
GST_BUFFER_OFFSET (buffer) = intersubsrc->n_frames;
GST_BUFFER_OFFSET_END (buffer) = -1;
GST_BUFFER_FLAG_UNSET (buffer, GST_BUFFER_FLAG_DISCONT);
if (intersubsrc->n_frames == 0) {
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
}
gst_buffer_set_caps (buffer, GST_PAD_CAPS (GST_BASE_SRC_PAD (intersubsrc)));
intersubsrc->n_frames++;
*buf = buffer;
return GST_FLOW_OK;
}
static gboolean
gst_inter_sub_src_do_seek (GstBaseSrc * src, GstSegment * segment)
{
GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (src);
GST_DEBUG_OBJECT (intersubsrc, "do_seek");
return FALSE;
}
static gboolean
gst_inter_sub_src_query (GstBaseSrc * src, GstQuery * query)
{
GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (src);
GST_DEBUG_OBJECT (intersubsrc, "query");
return TRUE;
}
static gboolean
gst_inter_sub_src_check_get_range (GstBaseSrc * src)
{
GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (src);
GST_DEBUG_OBJECT (intersubsrc, "get_range");
return FALSE;
}
static void
gst_inter_sub_src_fixate (GstBaseSrc * src, GstCaps * caps)
{
GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (src);
GST_DEBUG_OBJECT (intersubsrc, "fixate");
}
static gboolean
gst_inter_sub_src_unlock_stop (GstBaseSrc * src)
{
GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (src);
GST_DEBUG_OBJECT (intersubsrc, "stop");
return TRUE;
}
static gboolean
gst_inter_sub_src_prepare_seek_segment (GstBaseSrc * src, GstEvent * seek,
GstSegment * segment)
{
GstInterSubSrc *intersubsrc = GST_INTER_SUB_SRC (src);
GST_DEBUG_OBJECT (intersubsrc, "seek_segment");
return FALSE;
}

57
gst/inter/gstintersubsrc.h Normal file
View file

@ -0,0 +1,57 @@
/* GStreamer
* Copyright (C) 2011 David Schleef <ds@entropywave.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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef _GST_INTER_SUB_SRC_H_
#define _GST_INTER_SUB_SRC_H_
#include <gst/base/gstbasesrc.h>
#include "gstintersurface.h"
G_BEGIN_DECLS
#define GST_TYPE_INTER_SUB_SRC (gst_inter_sub_src_get_type())
#define GST_INTER_SUB_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_INTER_SUB_SRC,GstInterSubSrc))
#define GST_INTER_SUB_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_INTER_SUB_SRC,GstInterSubSrcClass))
#define GST_IS_INTER_SUB_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_INTER_SUB_SRC))
#define GST_IS_INTER_SUB_SRC_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_INTER_SUB_SRC))
typedef struct _GstInterSubSrc GstInterSubSrc;
typedef struct _GstInterSubSrcClass GstInterSubSrcClass;
struct _GstInterSubSrc
{
GstBaseSrc base_intersubsrc;
GstPad *srcpad;
GstInterSurface *surface;
int rate;
int n_frames;
};
struct _GstInterSubSrcClass
{
GstBaseSrcClass base_intersubsrc_class;
};
GType gst_inter_sub_src_get_type (void);
G_END_DECLS
#endif

1
gst/inter/gstintersurface.h
View file

@ -45,6 +45,7 @@ struct _GstInterSurface
int n_channels;
GstBuffer *video_buffer;
GstBuffer *sub_buffer;
GstAdapter *audio_adapter;
};