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Add GstBaseVideoDecoder from gst-plugins-bad git.

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gb 2010-06-22 12:57:06 +00:00 committed by Gwenole Beauchesne
parent d1332bc2e1
commit ca3005055c
7 changed files with 2677 additions and 0 deletions
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43
gst-libs/gst/video/Makefile.am Normal file
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noinst_LTLIBRARIES = libgstbasevideo-@GST_MAJORMINOR@.la
libgstbasevideo_source_c = \
gstbasevideocodec.c \
gstbasevideodecoder.c \
gstbasevideoutils.c \
$(NULL)
libgstbasevideo_source_h = \
gstbasevideocodec.h \
gstbasevideodecoder.h \
gstbasevideoutils.h \
$(NULL)
libgstbasevideo_@GST_MAJORMINOR@includedir = \
$(includedir)/gstreamer-@GST_MAJORMINOR@/gst/video
libgstbasevideo_@GST_MAJORMINOR@_la_SOURCES = \
$(libgstbasevideo_source_c)
noinst_HEADERS = \
$(libgstbasevideo_source_h)
libgstbasevideo_@GST_MAJORMINOR@_la_CFLAGS = \
-DGST_USE_UNSTABLE_API \
-I$(top_srcdir)/gst-libs \
$(GST_CFLAGS) \
$(GST_BASE_CFLAGS) \
$(GST_PLUGINS_BASE_CFLAGS) \
$(NULL)
libgstbasevideo_@GST_MAJORMINOR@_la_LIBADD = \
$(GST_LIBS) \
$(GST_BASE_LIBS) \
$(GST_PLUGINS_BASE_LIBS) \
$(NULL)
libgstbasevideo_@GST_MAJORMINOR@_la_LDFLAGS = \
$(GST_ALL_LDFLAGS) \
$(NULL)
# Extra clean files so that maintainer-clean removes *everything*
MAINTAINERCLEANFILES = Makefile.in

575
gst-libs/gst/video/gstbasevideocodec.c Normal file
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/* Schrodinger
* Copyright (C) 2006 David 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstbasevideocodec.h"
#include <string.h>
#include <math.h>
GST_DEBUG_CATEGORY (basevideocodec_debug);
#define GST_CAT_DEFAULT basevideocodec_debug
/* GstBaseVideoCodec signals and args */
enum
{
LAST_SIGNAL
};
enum
{
ARG_0
};
static void gst_base_video_codec_finalize (GObject * object);
//static const GstQueryType *gst_base_video_codec_get_query_types (GstPad *pad);
//static gboolean gst_base_video_codec_src_query (GstPad *pad, GstQuery *query);
//static gboolean gst_base_video_codec_sink_query (GstPad *pad, GstQuery *query);
//static gboolean gst_base_video_codec_src_event (GstPad *pad, GstEvent *event);
//static gboolean gst_base_video_codec_sink_event (GstPad *pad, GstEvent *event);
static GstStateChangeReturn gst_base_video_codec_change_state (GstElement *
element, GstStateChange transition);
//static GstFlowReturn gst_base_video_codec_push_all (GstBaseVideoCodec *base_video_codec,
// gboolean at_eos);
GST_BOILERPLATE (GstBaseVideoCodec, gst_base_video_codec, GstElement,
GST_TYPE_ELEMENT);
static void
gst_base_video_codec_base_init (gpointer g_class)
{
GST_DEBUG_CATEGORY_INIT (basevideocodec_debug, "basevideocodec", 0,
"Base Video Codec");
}
static void
gst_base_video_codec_class_init (GstBaseVideoCodecClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
gobject_class = G_OBJECT_CLASS (klass);
element_class = GST_ELEMENT_CLASS (klass);
gobject_class->finalize = gst_base_video_codec_finalize;
element_class->change_state = gst_base_video_codec_change_state;
}
static void
gst_base_video_codec_init (GstBaseVideoCodec * base_video_codec,
GstBaseVideoCodecClass * klass)
{
GstPadTemplate *pad_template;
GST_DEBUG ("gst_base_video_codec_init");
pad_template =
gst_element_class_get_pad_template (GST_ELEMENT_CLASS (klass), "sink");
g_return_if_fail (pad_template != NULL);
base_video_codec->sinkpad = gst_pad_new_from_template (pad_template, "sink");
//gst_pad_set_query_function (base_video_codec->sinkpad,
// gst_base_video_codec_sink_query);
gst_element_add_pad (GST_ELEMENT (base_video_codec),
base_video_codec->sinkpad);
pad_template =
gst_element_class_get_pad_template (GST_ELEMENT_CLASS (klass), "src");
g_return_if_fail (pad_template != NULL);
base_video_codec->srcpad = gst_pad_new_from_template (pad_template, "src");
gst_element_add_pad (GST_ELEMENT (base_video_codec),
base_video_codec->srcpad);
base_video_codec->input_adapter = gst_adapter_new ();
base_video_codec->output_adapter = gst_adapter_new ();
}
static void
gst_base_video_codec_reset (GstBaseVideoCodec * base_video_codec)
{
GST_DEBUG ("reset");
base_video_codec->system_frame_number = 0;
//gst_segment_init (&base_video_codec->state.segment, GST_FORMAT_TIME);
gst_adapter_clear (base_video_codec->input_adapter);
gst_adapter_clear (base_video_codec->output_adapter);
}
static void
gst_base_video_codec_finalize (GObject * object)
{
GstBaseVideoCodec *base_video_codec;
g_return_if_fail (GST_IS_BASE_VIDEO_CODEC (object));
base_video_codec = GST_BASE_VIDEO_CODEC (object);
if (base_video_codec->input_adapter) {
g_object_unref (base_video_codec->input_adapter);
}
if (base_video_codec->output_adapter) {
g_object_unref (base_video_codec->output_adapter);
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
#ifdef unused
static const GstQueryType *
gst_base_video_codec_get_query_types (GstPad * pad)
{
static const GstQueryType query_types[] = {
GST_QUERY_POSITION,
GST_QUERY_DURATION,
GST_QUERY_CONVERT,
0
};
return query_types;
}
#endif
#if 0
static gboolean
gst_base_video_codec_src_convert (GstPad * pad,
GstFormat src_format, gint64 src_value,
GstFormat * dest_format, gint64 * dest_value)
{
gboolean res;
GstBaseVideoCodec *dec;
if (src_format == *dest_format) {
*dest_value = src_value;
return TRUE;
}
dec = GST_BASE_VIDEO_CODEC (gst_pad_get_parent (pad));
if (src_format == GST_FORMAT_DEFAULT && *dest_format == GST_FORMAT_TIME) {
if (dec->fps_d != 0) {
*dest_value = gst_util_uint64_scale (granulepos_to_frame (src_value),
dec->fps_d * GST_SECOND, dec->fps_n);
res = TRUE;
} else {
res = FALSE;
}
} else {
GST_WARNING ("unhandled conversion from %d to %d", src_format,
*dest_format);
res = FALSE;
}
gst_object_unref (dec);
return res;
}
static gboolean
gst_base_video_codec_sink_convert (GstPad * pad,
GstFormat src_format, gint64 src_value,
GstFormat * dest_format, gint64 * dest_value)
{
gboolean res = TRUE;
GstBaseVideoCodec *dec;
if (src_format == *dest_format) {
*dest_value = src_value;
return TRUE;
}
dec = GST_BASE_VIDEO_CODEC (gst_pad_get_parent (pad));
/* FIXME: check if we are in a decoding state */
switch (src_format) {
case GST_FORMAT_DEFAULT:
switch (*dest_format) {
case GST_FORMAT_TIME:
*dest_value = gst_util_uint64_scale (src_value,
dec->fps_d * GST_SECOND, dec->fps_n);
break;
default:
res = FALSE;
}
break;
case GST_FORMAT_TIME:
switch (*dest_format) {
case GST_FORMAT_DEFAULT:
{
*dest_value = gst_util_uint64_scale (src_value,
dec->fps_n, dec->fps_d * GST_SECOND);
break;
}
default:
res = FALSE;
break;
}
break;
default:
res = FALSE;
break;
}
gst_object_unref (dec);
return res;
}
#endif
#ifdef unused
static gboolean
gst_base_video_codec_src_query (GstPad * pad, GstQuery * query)
{
GstBaseVideoCodec *base_codec;
gboolean res = FALSE;
base_codec = GST_BASE_VIDEO_CODEC (gst_pad_get_parent (pad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
{
GstFormat format;
gint64 time;
gint64 value;
gst_query_parse_position (query, &format, NULL);
time = gst_util_uint64_scale (base_codec->system_frame_number,
base_codec->state.fps_n, base_codec->state.fps_d);
time += base_codec->state.segment.time;
GST_DEBUG ("query position %" GST_TIME_FORMAT, GST_TIME_ARGS (time));
res = gst_base_video_encoded_video_convert (&base_codec->state,
GST_FORMAT_TIME, time, &format, &value);
if (!res)
goto error;
gst_query_set_position (query, format, value);
break;
}
case GST_QUERY_DURATION:
res = gst_pad_query (GST_PAD_PEER (base_codec->sinkpad), query);
if (!res)
goto error;
break;
case GST_QUERY_CONVERT:
{
GstFormat src_fmt, dest_fmt;
gint64 src_val, dest_val;
GST_DEBUG ("query convert");
gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
res = gst_base_video_encoded_video_convert (&base_codec->state,
src_fmt, src_val, &dest_fmt, &dest_val);
if (!res)
goto error;
gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
done:
gst_object_unref (base_codec);
return res;
error:
GST_DEBUG_OBJECT (base_codec, "query failed");
goto done;
}
#endif
#ifdef unused
static gboolean
gst_base_video_codec_sink_query (GstPad * pad, GstQuery * query)
{
GstBaseVideoCodec *base_video_codec;
gboolean res = FALSE;
base_video_codec = GST_BASE_VIDEO_CODEC (gst_pad_get_parent (pad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONVERT:
{
GstFormat src_fmt, dest_fmt;
gint64 src_val, dest_val;
gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
res = gst_base_video_encoded_video_convert (&base_video_codec->state,
src_fmt, src_val, &dest_fmt, &dest_val);
if (!res)
goto error;
gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
done:
gst_object_unref (base_video_codec);
return res;
error:
GST_DEBUG_OBJECT (base_video_codec, "query failed");
goto done;
}
#endif
#ifdef unused
static gboolean
gst_base_video_codec_src_event (GstPad * pad, GstEvent * event)
{
GstBaseVideoCodec *base_video_codec;
gboolean res = FALSE;
base_video_codec = GST_BASE_VIDEO_CODEC (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
{
GstFormat format, tformat;
gdouble rate;
GstEvent *real_seek;
GstSeekFlags flags;
GstSeekType cur_type, stop_type;
gint64 cur, stop;
gint64 tcur, tstop;
gst_event_parse_seek (event, &rate, &format, &flags, &cur_type,
&cur, &stop_type, &stop);
gst_event_unref (event);
tformat = GST_FORMAT_TIME;
res = gst_base_video_encoded_video_convert (&base_video_codec->state,
format, cur, &tformat, &tcur);
if (!res)
goto convert_error;
res = gst_base_video_encoded_video_convert (&base_video_codec->state,
format, stop, &tformat, &tstop);
if (!res)
goto convert_error;
real_seek = gst_event_new_seek (rate, GST_FORMAT_TIME,
flags, cur_type, tcur, stop_type, tstop);
res = gst_pad_push_event (base_video_codec->sinkpad, real_seek);
break;
}
#if 0
case GST_EVENT_QOS:
{
gdouble proportion;
GstClockTimeDiff diff;
GstClockTime timestamp;
gst_event_parse_qos (event, &proportion, &diff, &timestamp);
GST_OBJECT_LOCK (base_video_codec);
base_video_codec->proportion = proportion;
base_video_codec->earliest_time = timestamp + diff;
GST_OBJECT_UNLOCK (base_video_codec);
GST_DEBUG_OBJECT (base_video_codec,
"got QoS %" GST_TIME_FORMAT ", %" G_GINT64_FORMAT,
GST_TIME_ARGS (timestamp), diff);
res = gst_pad_push_event (base_video_codec->sinkpad, event);
break;
}
#endif
default:
res = gst_pad_push_event (base_video_codec->sinkpad, event);
break;
}
done:
gst_object_unref (base_video_codec);
return res;
convert_error:
GST_DEBUG_OBJECT (base_video_codec, "could not convert format");
goto done;
}
#endif
#ifdef unused
static gboolean
gst_base_video_codec_sink_event (GstPad * pad, GstEvent * event)
{
GstBaseVideoCodec *base_video_codec;
gboolean ret = FALSE;
base_video_codec = GST_BASE_VIDEO_CODEC (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_START:
ret = gst_pad_push_event (base_video_codec->srcpad, event);
break;
case GST_EVENT_FLUSH_STOP:
gst_base_video_codec_reset (base_video_codec);
ret = gst_pad_push_event (base_video_codec->srcpad, event);
break;
case GST_EVENT_EOS:
if (gst_base_video_codec_push_all (base_video_codec,
FALSE) == GST_FLOW_ERROR) {
gst_event_unref (event);
return FALSE;
}
ret = gst_pad_push_event (base_video_codec->srcpad, event);
break;
case GST_EVENT_NEWSEGMENT:
{
gboolean update;
GstFormat format;
gdouble rate;
gint64 start, stop, time;
gst_event_parse_new_segment (event, &update, &rate, &format, &start,
&stop, &time);
if (format != GST_FORMAT_TIME)
goto newseg_wrong_format;
if (rate <= 0.0)
goto newseg_wrong_rate;
GST_DEBUG ("newsegment %" GST_TIME_FORMAT " %" GST_TIME_FORMAT,
GST_TIME_ARGS (start), GST_TIME_ARGS (time));
gst_segment_set_newsegment (&base_video_codec->state.segment, update,
rate, format, start, stop, time);
ret = gst_pad_push_event (base_video_codec->srcpad, event);
break;
}
default:
ret = gst_pad_push_event (base_video_codec->srcpad, event);
break;
}
done:
gst_object_unref (base_video_codec);
return ret;
newseg_wrong_format:
GST_DEBUG_OBJECT (base_video_codec, "received non TIME newsegment");
gst_event_unref (event);
goto done;
newseg_wrong_rate:
GST_DEBUG_OBJECT (base_video_codec, "negative rates not supported");
gst_event_unref (event);
goto done;
}
#endif
static GstStateChangeReturn
gst_base_video_codec_change_state (GstElement * element,
GstStateChange transition)
{
GstBaseVideoCodec *base_video_codec = GST_BASE_VIDEO_CODEC (element);
GstStateChangeReturn ret;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_base_video_codec_reset (base_video_codec);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
ret = parent_class->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_base_video_codec_reset (base_video_codec);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
#if 0
guint64
gst_base_video_codec_get_timestamp (GstBaseVideoCodec * base_video_codec,
int picture_number)
{
if (picture_number < 0) {
return base_video_codec->timestamp_offset -
(gint64) gst_util_uint64_scale (-picture_number,
base_video_codec->state.fps_d * GST_SECOND,
base_video_codec->state.fps_n);
} else {
return base_video_codec->timestamp_offset +
gst_util_uint64_scale (picture_number,
base_video_codec->state.fps_d * GST_SECOND,
base_video_codec->state.fps_n);
}
}
#endif
GstVideoFrame *
gst_base_video_codec_new_frame (GstBaseVideoCodec * base_video_codec)
{
GstVideoFrame *frame;
frame = g_malloc0 (sizeof (GstVideoFrame));
frame->system_frame_number = base_video_codec->system_frame_number;
base_video_codec->system_frame_number++;
return frame;
}
void
gst_base_video_codec_free_frame (GstVideoFrame * frame)
{
if (frame->sink_buffer) {
gst_buffer_unref (frame->sink_buffer);
}
#if 0
if (frame->src_buffer) {
gst_buffer_unref (frame->src_buffer);
}
#endif
g_free (frame);
}

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gst-libs/gst/video/gstbasevideocodec.h Normal file
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/* GStreamer
* Copyright (C) 2008 David 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_BASE_VIDEO_CODEC_H_
#define _GST_BASE_VIDEO_CODEC_H_
#ifndef GST_USE_UNSTABLE_API
#warning "GstBaseVideoCodec is unstable API and may change in future."
#warning "You can define GST_USE_UNSTABLE_API to avoid this warning."
#endif
#include <gst/gst.h>
#include <gst/video/gstbasevideoutils.h>
G_BEGIN_DECLS
#define GST_TYPE_BASE_VIDEO_CODEC \
(gst_base_video_codec_get_type())
#define GST_BASE_VIDEO_CODEC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASE_VIDEO_CODEC,GstBaseVideoCodec))
#define GST_BASE_VIDEO_CODEC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASE_VIDEO_CODEC,GstBaseVideoCodecClass))
#define GST_BASE_VIDEO_CODEC_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_BASE_VIDEO_CODEC,GstBaseVideoCodecClass))
#define GST_IS_BASE_VIDEO_CODEC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASE_VIDEO_CODEC))
#define GST_IS_BASE_VIDEO_CODEC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASE_VIDEO_CODEC))
/**
* GST_BASE_VIDEO_CODEC_SINK_NAME:
*
* The name of the templates for the sink pad.
*/
#define GST_BASE_VIDEO_CODEC_SINK_NAME "sink"
/**
* GST_BASE_VIDEO_CODEC_SRC_NAME:
*
* The name of the templates for the source pad.
*/
#define GST_BASE_VIDEO_CODEC_SRC_NAME "src"
/**
* GST_BASE_VIDEO_CODEC_SRC_PAD:
* @obj: base video codec instance
*
* Gives the pointer to the source #GstPad object of the element.
*/
#define GST_BASE_VIDEO_CODEC_SRC_PAD(obj) (((GstBaseVideoCodec *) (obj))->srcpad)
/**
* GST_BASE_VIDEO_CODEC_SINK_PAD:
* @obj: base video codec instance
*
* Gives the pointer to the sink #GstPad object of the element.
*/
#define GST_BASE_VIDEO_CODEC_SINK_PAD(obj) (((GstBaseVideoCodec *) (obj))->sinkpad)
/**
* GST_BASE_VIDEO_CODEC_FLOW_NEED_DATA:
*
*/
#define GST_BASE_VIDEO_CODEC_FLOW_NEED_DATA GST_FLOW_CUSTOM_SUCCESS
typedef struct _GstBaseVideoCodec GstBaseVideoCodec;
typedef struct _GstBaseVideoCodecClass GstBaseVideoCodecClass;
struct _GstBaseVideoCodec
{
GstElement element;
/*< private >*/
GstPad *sinkpad;
GstPad *srcpad;
GstAdapter *input_adapter;
GstAdapter *output_adapter;
#if 0
/* FIXME need to move from subclasses */
GstVideoState state;
#endif
//int reorder_depth;
//gboolean have_sync;
//gboolean discont;
//gboolean started;
//GstVideoFrame *current_frame;
//int distance_from_sync;
//gboolean sink_clipping;
//guint64 presentation_frame_number;
guint64 system_frame_number;
//GstCaps *caps;
//gboolean set_output_caps;
//GstClockTime buffer_timestamp;
GstClockTime timestamp_offset;
};
struct _GstBaseVideoCodecClass
{
GstElementClass element_class;
gboolean (*start) (GstBaseVideoCodec *codec);
gboolean (*stop) (GstBaseVideoCodec *codec);
gboolean (*reset) (GstBaseVideoCodec *codec);
GstFlowReturn (*parse_data) (GstBaseVideoCodec *codec, gboolean at_eos);
int (*scan_for_sync) (GstAdapter *adapter, gboolean at_eos,
int offset, int n);
GstFlowReturn (*shape_output) (GstBaseVideoCodec *codec, GstVideoFrame *frame);
GstCaps *(*get_caps) (GstBaseVideoCodec *codec);
};
GType gst_base_video_codec_get_type (void);
#if 0
guint64 gst_base_video_codec_get_timestamp (GstBaseVideoCodec *codec,
int picture_number);
#endif
GstVideoFrame * gst_base_video_codec_new_frame (GstBaseVideoCodec *base_video_codec);
void gst_base_video_codec_free_frame (GstVideoFrame *frame);
G_END_DECLS
#endif

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gst-libs/gst/video/gstbasevideodecoder.c Normal file
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gst-libs/gst/video/gstbasevideodecoder.h Normal file
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/* GStreamer
* Copyright (C) 2008 David 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_BASE_VIDEO_DECODER_H_
#define _GST_BASE_VIDEO_DECODER_H_
#ifndef GST_USE_UNSTABLE_API
#warning "GstBaseVideoDecoder is unstable API and may change in future."
#warning "You can define GST_USE_UNSTABLE_API to avoid this warning."
#endif
#include <gst/video/gstbasevideocodec.h>
G_BEGIN_DECLS
#define GST_TYPE_BASE_VIDEO_DECODER \
(gst_base_video_decoder_get_type())
#define GST_BASE_VIDEO_DECODER(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASE_VIDEO_DECODER,GstBaseVideoDecoder))
#define GST_BASE_VIDEO_DECODER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASE_VIDEO_DECODER,GstBaseVideoDecoderClass))
#define GST_BASE_VIDEO_DECODER_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_BASE_VIDEO_DECODER,GstBaseVideoDecoderClass))
#define GST_IS_BASE_VIDEO_DECODER(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASE_VIDEO_DECODER))
#define GST_IS_BASE_VIDEO_DECODER_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASE_VIDEO_DECODER))
/**
* GST_BASE_VIDEO_DECODER_SINK_NAME:
*
* The name of the templates for the sink pad.
*/
#define GST_BASE_VIDEO_DECODER_SINK_NAME "sink"
/**
* GST_BASE_VIDEO_DECODER_SRC_NAME:
*
* The name of the templates for the source pad.
*/
#define GST_BASE_VIDEO_DECODER_SRC_NAME "src"
/**
* * GST_BASE_VIDEO_DECODER_FLOW_NEED_DATA:
* *
* */
#define GST_BASE_VIDEO_DECODER_FLOW_NEED_DATA GST_FLOW_CUSTOM_SUCCESS
typedef struct _GstBaseVideoDecoder GstBaseVideoDecoder;
typedef struct _GstBaseVideoDecoderClass GstBaseVideoDecoderClass;
struct _GstBaseVideoDecoder
{
GstBaseVideoCodec base_video_codec;
/*< private >*/
GstAdapter *input_adapter;
GstAdapter *output_adapter;
GList *frames;
gboolean have_sync;
gboolean discont;
gboolean started;
GstVideoState state;
GstSegment segment;
gboolean sink_clipping;
guint64 presentation_frame_number;
guint64 system_frame_number;
GstCaps *caps;
gboolean have_src_caps;
GstVideoFrame *current_frame;
int distance_from_sync;
int reorder_depth;
GstClockTime buffer_timestamp;
GstClockTime timestamp_offset;
gdouble proportion;
GstClockTime earliest_time;
//GstBuffer *codec_data;
guint64 input_offset;
guint64 frame_offset;
GstClockTime last_timestamp;
guint64 base_picture_number;
int field_index;
gboolean is_delta_unit;
gboolean packetized;
GList *timestamps;
gboolean have_segment;
};
struct _GstBaseVideoDecoderClass
{
GstBaseVideoCodecClass base_video_codec_class;
gboolean (*set_format) (GstBaseVideoDecoder *coder, GstVideoFormat,
int width, int height, int fps_n, int fps_d,
int par_n, int par_d);
gboolean (*start) (GstBaseVideoDecoder *coder);
gboolean (*stop) (GstBaseVideoDecoder *coder);
gboolean (*reset) (GstBaseVideoDecoder *coder);
int (*scan_for_sync) (GstBaseVideoDecoder *decoder, gboolean at_eos,
int offset, int n);
GstFlowReturn (*parse_data) (GstBaseVideoDecoder *decoder, gboolean at_eos);
GstFlowReturn (*finish) (GstBaseVideoDecoder *coder);
GstFlowReturn (*handle_frame) (GstBaseVideoDecoder *coder, GstVideoFrame *frame,
GstClockTimeDiff deadline);
GstFlowReturn (*shape_output) (GstBaseVideoDecoder *coder, GstVideoFrame *frame);
GstCaps *(*get_caps) (GstBaseVideoDecoder *coder);
};
GType gst_base_video_decoder_get_type (void);
int gst_base_video_decoder_get_width (GstBaseVideoDecoder *coder);
int gst_base_video_decoder_get_height (GstBaseVideoDecoder *coder);
guint64 gst_base_video_decoder_get_timestamp_offset (GstBaseVideoDecoder *coder);
GstVideoFrame *gst_base_video_decoder_get_frame (GstBaseVideoDecoder *coder,
int frame_number);
GstVideoFrame *gst_base_video_decoder_get_oldest_frame (GstBaseVideoDecoder *coder);
void gst_base_video_decoder_add_to_frame (GstBaseVideoDecoder *base_video_decoder,
int n_bytes);
GstFlowReturn gst_base_video_decoder_finish_frame (GstBaseVideoDecoder *base_video_decoder,
GstVideoFrame *frame);
GstFlowReturn gst_base_video_decoder_skip_frame (GstBaseVideoDecoder * base_video_decoder,
GstVideoFrame * frame);
GstFlowReturn gst_base_video_decoder_end_of_stream (GstBaseVideoDecoder *base_video_decoder,
GstBuffer *buffer);
GstFlowReturn
gst_base_video_decoder_have_frame (GstBaseVideoDecoder *base_video_decoder);
GstVideoState * gst_base_video_decoder_get_state (GstBaseVideoDecoder *base_video_decoder);
void gst_base_video_decoder_set_state (GstBaseVideoDecoder *base_video_decoder,
GstVideoState *state);
void gst_base_video_decoder_lost_sync (GstBaseVideoDecoder *base_video_decoder);
void gst_base_video_decoder_set_sync_point (GstBaseVideoDecoder *base_video_decoder);
void gst_base_video_decoder_set_src_caps (GstBaseVideoDecoder *base_video_decoder);
GstFlowReturn gst_base_video_decoder_alloc_src_frame (GstBaseVideoDecoder *base_video_decoder,
GstVideoFrame *frame);
G_END_DECLS
#endif

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/* GStreamer
* Copyright (C) 2008 David 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstbasevideoutils.h"
#include <string.h>
GST_DEBUG_CATEGORY_EXTERN (basevideocodec_debug);
#define GST_CAT_DEFAULT basevideocodec_debug
#if 0
guint64
gst_base_video_convert_bytes_to_frames (GstVideoState * state, guint64 bytes)
{
return gst_util_uint64_scale_int (bytes, 1, state->bytes_per_picture);
}
guint64
gst_base_video_convert_frames_to_bytes (GstVideoState * state, guint64 frames)
{
return frames * state->bytes_per_picture;
}
#endif
gboolean
gst_base_video_rawvideo_convert (GstVideoState * state,
GstFormat src_format, gint64 src_value,
GstFormat * dest_format, gint64 * dest_value)
{
gboolean res = FALSE;
if (src_format == *dest_format) {
*dest_value = src_value;
return TRUE;
}
if (src_format == GST_FORMAT_BYTES &&
*dest_format == GST_FORMAT_DEFAULT && state->bytes_per_picture != 0) {
/* convert bytes to frames */
*dest_value = gst_util_uint64_scale_int (src_value, 1,
state->bytes_per_picture);
res = TRUE;
} else if (src_format == GST_FORMAT_DEFAULT &&
*dest_format == GST_FORMAT_BYTES && state->bytes_per_picture != 0) {
/* convert bytes to frames */
*dest_value = src_value * state->bytes_per_picture;
res = TRUE;
} else if (src_format == GST_FORMAT_DEFAULT &&
*dest_format == GST_FORMAT_TIME && state->fps_n != 0) {
/* convert frames to time */
/* FIXME add segment time? */
*dest_value = gst_util_uint64_scale (src_value,
GST_SECOND * state->fps_d, state->fps_n);
res = TRUE;
} else if (src_format == GST_FORMAT_TIME &&
*dest_format == GST_FORMAT_DEFAULT && state->fps_d != 0) {
/* convert time to frames */
/* FIXME subtract segment time? */
*dest_value = gst_util_uint64_scale (src_value, state->fps_n,
GST_SECOND * state->fps_d);
res = TRUE;
}
/* FIXME add bytes <--> time */
return res;
}
gboolean
gst_base_video_encoded_video_convert (GstVideoState * state,
GstFormat src_format, gint64 src_value,
GstFormat * dest_format, gint64 * dest_value)
{
gboolean res = FALSE;
if (src_format == *dest_format) {
*dest_value = src_value;
return TRUE;
}
GST_DEBUG ("src convert");
#if 0
if (src_format == GST_FORMAT_DEFAULT && *dest_format == GST_FORMAT_TIME) {
if (dec->fps_d != 0) {
*dest_value = gst_util_uint64_scale (granulepos_to_frame (src_value),
dec->fps_d * GST_SECOND, dec->fps_n);
res = TRUE;
} else {
res = FALSE;
}
} else {
GST_WARNING ("unhandled conversion from %d to %d", src_format,
*dest_format);
res = FALSE;
}
#endif
return res;
}
GstClockTime
gst_video_state_get_timestamp (const GstVideoState * state,
GstSegment * segment, int frame_number)
{
if (frame_number < 0) {
return segment->start -
(gint64) gst_util_uint64_scale (-frame_number,
state->fps_d * GST_SECOND, state->fps_n);
} else {
return segment->start +
gst_util_uint64_scale (frame_number,
state->fps_d * GST_SECOND, state->fps_n);
}
}

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/* GStreamer
* Copyright (C) 2008 David 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_BASE_VIDEO_UTILS_H_
#define _GST_BASE_VIDEO_UTILS_H_
#ifndef GST_USE_UNSTABLE_API
#warning "The base video utils API is unstable and may change in future."
#warning "You can define GST_USE_UNSTABLE_API to avoid this warning."
#endif
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/base/gstadapter.h>
G_BEGIN_DECLS
typedef struct _GstVideoState GstVideoState;
typedef struct _GstVideoFrame GstVideoFrame;
struct _GstVideoState
{
GstVideoFormat format;
int width, height;
int fps_n, fps_d;
int par_n, par_d;
gboolean have_interlaced;
gboolean interlaced;
gboolean top_field_first;
int clean_width, clean_height;
int clean_offset_left, clean_offset_top;
int bytes_per_picture;
//GstSegment segment;
int picture_number;
GstBuffer *codec_data;
};
struct _GstVideoFrame
{
GstClockTime decode_timestamp;
GstClockTime presentation_timestamp;
GstClockTime presentation_duration;
gint system_frame_number;
gint decode_frame_number;
gint presentation_frame_number;
int distance_from_sync;
gboolean is_sync_point;
gboolean is_eos;
GstBuffer *sink_buffer;
GstBuffer *src_buffer;
int field_index;
int n_fields;
void *coder_hook;
};
gboolean gst_base_video_rawvideo_convert (GstVideoState *state,
GstFormat src_format, gint64 src_value,
GstFormat * dest_format, gint64 *dest_value);
gboolean gst_base_video_encoded_video_convert (GstVideoState *state,
GstFormat src_format, gint64 src_value,
GstFormat * dest_format, gint64 *dest_value);
GstClockTime gst_video_state_get_timestamp (const GstVideoState *state,
GstSegment *segment, int frame_number);
int gst_adapter_masked_scan_uint32_compat (GstAdapter *adapter,
guint32 pattern, guint32 mask, guint offset, guint n);
GstBuffer *gst_adapter_get_buffer (GstAdapter *adapter);
G_END_DECLS
#endif