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basevideo: move from -base

Browse source 
Also move schroedinger plugin.  This creates a new library,
gstbasevideo-0.10, which will probably be merged back into
gstvideo-0.10 when this is moved back to -base.
This commit is contained in:
David Schleef 2009-07-01 10:55:12 -07:00
parent 80856964b5
commit cf2b2b017f
21 changed files with 6296 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
configure.ac
View file

@ -1468,6 +1468,12 @@ AG_GST_CHECK_FEATURE(VDPAU, [VDPAU], vdpau, [
fi
])
dnl *** schroedinger ***
translit(dnm, m, l) AM_CONDITIONAL(USE_SCHRO, true)
AG_GST_CHECK_FEATURE(SCHRO, [Schroedinger video codec], schro, [
AG_GST_PKG_CHECK_MODULES(SCHRO, schroedinger-1.0 >= 1.0.7)
])
else
dnl not building plugins with external dependencies,
@ -1645,6 +1651,7 @@ gst-libs/gst/Makefile
gst-libs/gst/dshow/Makefile
gst-libs/gst/interfaces/Makefile
gst-libs/gst/signalprocessor/Makefile
gst-libs/gst/video/Makefile
sys/Makefile
sys/dshowdecwrapper/Makefile
sys/acmenc/Makefile
@ -1707,6 +1714,7 @@ ext/nas/Makefile
ext/neon/Makefile
ext/ofa/Makefile
ext/resindvd/Makefile
ext/schroedinger/Makefile
ext/sdl/Makefile
ext/sndfile/Makefile
ext/soundtouch/Makefile

8
ext/Makefile.am
View file

@ -264,6 +264,12 @@ endif
POLYP_DIR=
# endif
if USE_SCHRO
SCHRO_DIR=schroedinger
else
SCHRO_DIR=
endif
if USE_SDL
SDL_DIR=sdl
else
@ -373,6 +379,7 @@ SUBDIRS=\
$(NEON_DIR) \
$(OFA_DIR) \
$(POLYP_DIR) \
$(SCHRO_DIR) \
$(SDL_DIR) \
$(SHOUT_DIR) \
$(SMOOTHWAVE_DIR) \
@ -420,6 +427,7 @@ DIST_SUBDIRS = \
neon \
ofa \
resindvd \
schroedinger \
sdl \
sndfile \
soundtouch \

27
ext/schroedinger/Makefile.am Normal file
View file

@ -0,0 +1,27 @@
plugin_LTLIBRARIES = libgstschro.la
noinst_HEADERS = \
gstschroutils.h
libgstschro_la_SOURCES = \
gstschro.c \
gstschrodec.c \
gstschroenc.c \
gstschroparse.c \
gstschroutils.c
libgstschro_la_CFLAGS = \
$(GST_CFLAGS) \
$(GST_BASE_CFLAGS) \
$(GST_PLUGINS_BASE_CFLAGS) \
$(SCHRO_CFLAGS)
libgstschro_la_LIBADD = \
$(GST_LIBS) \
$(GST_BASE_LIBS) -lgstvideo-@GST_MAJORMINOR@ \
$(top_builddir)/gst-libs/gst/video/libgstbasevideo-@GST_MAJORMINOR@.la \
$(GST_PLUGINS_BASE_LIBS) \
$(SCHRO_LIBS)
libgstschro_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
libgstschro_la_LIBTOOLFLAGS = --tag=disable-static

54
ext/schroedinger/gstschro.c Normal file
View file

@ -0,0 +1,54 @@
/* GStreamer
* Copyright (C) 2005 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 <gst/gst.h>
#include <schroedinger/schro.h>
GType gst_schro_enc_get_type (void);
GType gst_schro_dec_get_type (void);
GType gst_schro_parse_get_type (void);
GST_DEBUG_CATEGORY (schro_debug);
#define GST_CAT_DEFAULT schro_debug
static gboolean
plugin_init (GstPlugin * plugin)
{
schro_init ();
GST_DEBUG_CATEGORY_INIT (schro_debug, "schro", 0, "Schroedinger");
gst_element_register (plugin, "schrodec", GST_RANK_PRIMARY,
gst_schro_dec_get_type ());
gst_element_register (plugin, "schroparse", GST_RANK_NONE,
gst_schro_parse_get_type ());
gst_element_register (plugin, "schroenc", GST_RANK_PRIMARY,
gst_schro_enc_get_type ());
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"schro",
"Schroedinger plugin",
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)

722
ext/schroedinger/gstschrodec.c Normal file
View file

@ -0,0 +1,722 @@
/* 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 <gst/gst.h>
#include <gst/base/gstadapter.h>
#include <gst/video/video.h>
#include <gst/video/gstbasevideodecoder.h>
#include <string.h>
#include <schroedinger/schro.h>
#include <math.h>
#include "gstschroutils.h"
#include <schroedinger/schroparse.h>
GST_DEBUG_CATEGORY_EXTERN (schro_debug);
#define GST_CAT_DEFAULT schro_debug
#define GST_TYPE_SCHRO_DEC \
(gst_schro_dec_get_type())
#define GST_SCHRO_DEC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SCHRO_DEC,GstSchroDec))
#define GST_SCHRO_DEC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SCHRO_DEC,GstSchroDecClass))
#define GST_IS_SCHRO_DEC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SCHRO_DEC))
#define GST_IS_SCHRO_DEC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SCHRO_DEC))
typedef struct _GstSchroDec GstSchroDec;
typedef struct _GstSchroDecClass GstSchroDecClass;
struct _GstSchroDec
{
GstBaseVideoDecoder base_video_decoder;
SchroDecoder *decoder;
GstBuffer *seq_header_buffer;
};
struct _GstSchroDecClass
{
GstBaseVideoDecoder base_video_decoder_class;
};
/* GstSchroDec signals and args */
enum
{
LAST_SIGNAL
};
enum
{
ARG_0
};
static void gst_schro_dec_finalize (GObject * object);
static void gst_schro_dec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_schro_dec_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static gboolean gst_schro_dec_sink_query (GstPad * pad, GstQuery * query);
static gboolean gst_schro_dec_start (GstBaseVideoDecoder * dec);
static gboolean gst_schro_dec_stop (GstBaseVideoDecoder * dec);
static gboolean gst_schro_dec_reset (GstBaseVideoDecoder * dec);
static GstFlowReturn gst_schro_dec_parse_data (GstBaseVideoDecoder *
base_video_decoder, gboolean at_eos);
static int gst_schro_dec_scan_for_sync (GstBaseVideoDecoder *
base_video_decoder, gboolean at_eos, int offset, int n);
static GstFlowReturn gst_schro_dec_handle_frame (GstBaseVideoDecoder * decoder,
GstVideoFrame * frame);
static GstFlowReturn gst_schro_dec_finish (GstBaseVideoDecoder *
base_video_decoder, GstVideoFrame * frame);
static void gst_schrodec_send_tags (GstSchroDec * schro_dec);
static GstStaticPadTemplate gst_schro_dec_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-dirac")
);
static GstStaticPadTemplate gst_schro_dec_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{ I420, YUY2, AYUV }"))
);
GST_BOILERPLATE (GstSchroDec, gst_schro_dec, GstBaseVideoDecoder,
GST_TYPE_BASE_VIDEO_DECODER);
static void
gst_schro_dec_base_init (gpointer g_class)
{
static GstElementDetails compress_details =
GST_ELEMENT_DETAILS ("Dirac Decoder",
"Codec/Decoder/Video",
"Decode Dirac streams",
"David Schleef <ds@schleef.org>");
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_schro_dec_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_schro_dec_sink_template));
gst_element_class_set_details (element_class, &compress_details);
}
static void
gst_schro_dec_class_init (GstSchroDecClass * klass)
{
GObjectClass *gobject_class;
GstBaseVideoDecoderClass *base_video_decoder_class;
GstElementClass *element_class;
gobject_class = G_OBJECT_CLASS (klass);
element_class = GST_ELEMENT_CLASS (klass);
base_video_decoder_class = GST_BASE_VIDEO_DECODER_CLASS (klass);
gobject_class->set_property = gst_schro_dec_set_property;
gobject_class->get_property = gst_schro_dec_get_property;
gobject_class->finalize = gst_schro_dec_finalize;
base_video_decoder_class->start = GST_DEBUG_FUNCPTR (gst_schro_dec_start);
base_video_decoder_class->stop = GST_DEBUG_FUNCPTR (gst_schro_dec_stop);
base_video_decoder_class->reset = GST_DEBUG_FUNCPTR (gst_schro_dec_reset);
base_video_decoder_class->parse_data =
GST_DEBUG_FUNCPTR (gst_schro_dec_parse_data);
base_video_decoder_class->scan_for_sync =
GST_DEBUG_FUNCPTR (gst_schro_dec_scan_for_sync);
base_video_decoder_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_schro_dec_handle_frame);
base_video_decoder_class->finish = GST_DEBUG_FUNCPTR (gst_schro_dec_finish);
}
static void
gst_schro_dec_init (GstSchroDec * schro_dec, GstSchroDecClass * klass)
{
GST_DEBUG ("gst_schro_dec_init");
gst_pad_set_query_function (GST_BASE_VIDEO_CODEC_SINK_PAD (schro_dec),
gst_schro_dec_sink_query);
schro_dec->decoder = schro_decoder_new ();
}
#define OGG_DIRAC_GRANULE_SHIFT 22
#define OGG_DIRAC_GRANULE_LOW_MASK ((1ULL<<OGG_DIRAC_GRANULE_SHIFT)-1)
static gint64
granulepos_to_frame (gint64 granulepos)
{
guint64 pt;
int dist_h;
int dist_l;
int dist;
int delay;
guint64 dt;
if (granulepos == -1)
return -1;
pt = ((granulepos >> 22) + (granulepos & OGG_DIRAC_GRANULE_LOW_MASK)) >> 9;
dist_h = (granulepos >> 22) & 0xff;
dist_l = granulepos & 0xff;
dist = (dist_h << 8) | dist_l;
delay = (granulepos >> 9) & 0x1fff;
dt = pt - delay;
return pt >> 1;
}
static gboolean
gst_schro_dec_sink_convert (GstPad * pad,
GstFormat src_format, gint64 src_value,
GstFormat * dest_format, gint64 * dest_value)
{
gboolean res = TRUE;
GstSchroDec *dec;
GstVideoState *state;
if (src_format == *dest_format) {
*dest_value = src_value;
return TRUE;
}
dec = GST_SCHRO_DEC (gst_pad_get_parent (pad));
/* FIXME: check if we are in a decoding state */
state = gst_base_video_decoder_get_state (GST_BASE_VIDEO_DECODER (dec));
res = FALSE;
if (src_format == GST_FORMAT_DEFAULT && *dest_format == GST_FORMAT_TIME) {
if (state->fps_d != 0) {
*dest_value = gst_util_uint64_scale (granulepos_to_frame (src_value),
state->fps_d * GST_SECOND, state->fps_n);
res = TRUE;
} else {
res = FALSE;
}
}
gst_object_unref (dec);
return res;
}
static gboolean
gst_schro_dec_sink_query (GstPad * pad, GstQuery * query)
{
GstSchroDec *dec;
gboolean res = FALSE;
dec = GST_SCHRO_DEC (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_schro_dec_sink_convert (pad, 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 (dec);
return res;
error:
GST_DEBUG_OBJECT (dec, "query failed");
goto done;
}
static gboolean
gst_schro_dec_start (GstBaseVideoDecoder * dec)
{
if (dec->codec_data) {
GST_DEBUG_OBJECT (dec, "codec data!");
}
return TRUE;
}
static gboolean
gst_schro_dec_stop (GstBaseVideoDecoder * dec)
{
return TRUE;
}
static gboolean
gst_schro_dec_reset (GstBaseVideoDecoder * dec)
{
GstSchroDec *schro_dec;
schro_dec = GST_SCHRO_DEC (dec);
GST_DEBUG ("reset");
if (schro_dec->decoder) {
schro_decoder_reset (schro_dec->decoder);
}
return TRUE;
}
static void
gst_schro_dec_finalize (GObject * object)
{
GstSchroDec *schro_dec;
g_return_if_fail (GST_IS_SCHRO_DEC (object));
schro_dec = GST_SCHRO_DEC (object);
if (schro_dec->decoder) {
schro_decoder_free (schro_dec->decoder);
schro_dec->decoder = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_schro_dec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstSchroDec *src;
g_return_if_fail (GST_IS_SCHRO_DEC (object));
src = GST_SCHRO_DEC (object);
GST_DEBUG ("gst_schro_dec_set_property");
switch (prop_id) {
default:
break;
}
}
static void
gst_schro_dec_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstSchroDec *src;
g_return_if_fail (GST_IS_SCHRO_DEC (object));
src = GST_SCHRO_DEC (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
parse_sequence_header (GstSchroDec * schro_dec, guint8 * data, int size)
{
SchroVideoFormat video_format;
int ret;
GstVideoState *state;
GST_DEBUG_OBJECT (schro_dec, "parse_sequence_header size=%d", size);
state = gst_base_video_decoder_get_state (GST_BASE_VIDEO_DECODER (schro_dec));
schro_dec->seq_header_buffer = gst_buffer_new_and_alloc (size);
memcpy (GST_BUFFER_DATA (schro_dec->seq_header_buffer), data, size);
ret = schro_parse_decode_sequence_header (data + 13, size - 13,
&video_format);
if (ret) {
if (video_format.chroma_format == SCHRO_CHROMA_444) {
state->format = GST_VIDEO_FORMAT_AYUV;
} else if (video_format.chroma_format == SCHRO_CHROMA_422) {
state->format = GST_VIDEO_FORMAT_YUY2;
} else if (video_format.chroma_format == SCHRO_CHROMA_420) {
state->format = GST_VIDEO_FORMAT_I420;
}
state->fps_n = video_format.frame_rate_numerator;
state->fps_d = video_format.frame_rate_denominator;
GST_DEBUG_OBJECT (schro_dec, "Frame rate is %d/%d", state->fps_n,
state->fps_d);
state->width = video_format.width;
state->height = video_format.height;
GST_DEBUG ("Frame dimensions are %d x %d\n", state->width, state->height);
state->clean_width = video_format.clean_width;
state->clean_height = video_format.clean_height;
state->clean_offset_left = video_format.left_offset;
state->clean_offset_top = video_format.top_offset;
state->par_n = video_format.aspect_ratio_numerator;
state->par_d = video_format.aspect_ratio_denominator;
GST_DEBUG ("Pixel aspect ratio is %d/%d", state->par_n, state->par_d);
/* FIXME state points to what is actually in the decoder */
//gst_base_video_decoder_set_state (GST_BASE_VIDEO_DECODER (schro_dec),
// state);
} else {
GST_WARNING ("Failed to get frame rate from sequence header");
}
gst_schrodec_send_tags (schro_dec);
}
static GstFlowReturn
gst_schro_dec_parse_data (GstBaseVideoDecoder * base_video_decoder,
gboolean at_eos)
{
GstSchroDec *schro_decoder;
unsigned char header[SCHRO_PARSE_HEADER_SIZE];
int next;
int prev;
int parse_code;
GST_DEBUG_OBJECT (base_video_decoder, "parse_data");
schro_decoder = GST_SCHRO_DEC (base_video_decoder);
if (gst_adapter_available (base_video_decoder->input_adapter) <
SCHRO_PARSE_HEADER_SIZE) {
return GST_BASE_VIDEO_DECODER_FLOW_NEED_DATA;
}
GST_DEBUG ("available %d",
gst_adapter_available (base_video_decoder->input_adapter));
gst_adapter_copy (base_video_decoder->input_adapter, header, 0,
SCHRO_PARSE_HEADER_SIZE);
parse_code = header[4];
next = GST_READ_UINT32_BE (header + 5);
prev = GST_READ_UINT32_BE (header + 9);
GST_DEBUG ("%08x %02x %08x %08x",
GST_READ_UINT32_BE (header), parse_code, next, prev);
if (memcmp (header, "BBCD", 4) != 0 ||
(next & 0xf0000000) || (prev & 0xf0000000)) {
gst_base_video_decoder_lost_sync (base_video_decoder);
return GST_BASE_VIDEO_DECODER_FLOW_NEED_DATA;
}
if (SCHRO_PARSE_CODE_IS_END_OF_SEQUENCE (parse_code)) {
GstVideoFrame *frame;
if (next != 0 && next != SCHRO_PARSE_HEADER_SIZE) {
GST_WARNING ("next is not 0 or 13 in EOS packet (%d)", next);
}
gst_base_video_decoder_add_to_frame (base_video_decoder,
SCHRO_PARSE_HEADER_SIZE);
frame = base_video_decoder->current_frame;
frame->is_eos = TRUE;
SCHRO_DEBUG ("eos");
return gst_base_video_decoder_have_frame (base_video_decoder);
}
if (gst_adapter_available (base_video_decoder->input_adapter) < next) {
return GST_BASE_VIDEO_DECODER_FLOW_NEED_DATA;
}
if (SCHRO_PARSE_CODE_IS_SEQ_HEADER (parse_code)) {
guint8 *data;
data = g_malloc (next);
gst_adapter_copy (base_video_decoder->input_adapter, data, 0, next);
parse_sequence_header (schro_decoder, data, next);
gst_base_video_decoder_set_sync_point (base_video_decoder);
if (GST_CLOCK_TIME_IS_VALID (base_video_decoder->last_sink_timestamp)) {
base_video_decoder->current_frame->presentation_timestamp =
base_video_decoder->last_sink_timestamp;
GST_DEBUG ("got timestamp %lld", base_video_decoder->last_sink_timestamp);
} else if (base_video_decoder->last_sink_offset_end != -1) {
GstVideoState *state;
#if 0
/* FIXME perhaps should use this to determine if the granulepos
* is valid */
{
guint64 pt;
int dist_h;
int dist_l;
int dist;
int delay;
guint64 dt;
gint64 granulepos = base_video_decoder->last_sink_offset_end;
pt = ((granulepos >> 22) +
(granulepos & OGG_DIRAC_GRANULE_LOW_MASK)) >> 9;
dist_h = (granulepos >> 22) & 0xff;
dist_l = granulepos & 0xff;
dist = (dist_h << 8) | dist_l;
delay = (granulepos >> 9) & 0x1fff;
dt = pt - delay;
GST_DEBUG ("gp pt %lld dist %d delay %d dt %lld", pt, dist, delay, dt);
}
#endif
state =
gst_base_video_decoder_get_state (GST_BASE_VIDEO_DECODER
(schro_decoder));
base_video_decoder->current_frame->presentation_timestamp =
gst_util_uint64_scale (granulepos_to_frame
(base_video_decoder->last_sink_offset_end), state->fps_d * GST_SECOND,
state->fps_n);
} else {
base_video_decoder->current_frame->presentation_timestamp = -1;
}
g_free (data);
}
if (schro_decoder->seq_header_buffer == NULL) {
gst_adapter_flush (base_video_decoder->input_adapter, next);
return GST_FLOW_OK;
}
if (SCHRO_PARSE_CODE_IS_PICTURE (parse_code)) {
GstVideoFrame *frame;
guint8 tmp[4];
frame = base_video_decoder->current_frame;
gst_adapter_copy (base_video_decoder->input_adapter, tmp,
SCHRO_PARSE_HEADER_SIZE, 4);
frame->presentation_frame_number = GST_READ_UINT32_BE (tmp);
gst_base_video_decoder_add_to_frame (base_video_decoder, next);
return gst_base_video_decoder_have_frame (base_video_decoder);
} else {
gst_base_video_decoder_add_to_frame (base_video_decoder, next);
}
return GST_FLOW_OK;
}
static int
gst_schro_dec_scan_for_sync (GstBaseVideoDecoder * base_video_decoder,
gboolean at_eos, int offset, int n)
{
GstAdapter *adapter = base_video_decoder->input_adapter;
int n_available;
n_available = gst_adapter_available (adapter) - offset;
if (n_available < 4) {
if (at_eos) {
return n_available;
} else {
return 0;
}
}
n_available -= 3;
return gst_adapter_masked_scan_uint32 (adapter, 0xffffffff, 0x42424344,
offset, MIN (n, n_available - 3));
}
static void
gst_schrodec_send_tags (GstSchroDec * schro_dec)
{
GstTagList *list;
list = gst_tag_list_new ();
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
GST_TAG_VIDEO_CODEC, "Dirac", NULL);
gst_element_found_tags_for_pad (GST_ELEMENT_CAST (schro_dec),
GST_BASE_VIDEO_CODEC_SRC_PAD (schro_dec), list);
}
static GstFlowReturn
gst_schro_dec_process (GstSchroDec * schro_dec, gboolean eos)
{
gboolean go;
GstFlowReturn ret;
ret = GST_FLOW_OK;
go = TRUE;
while (go) {
int it;
it = schro_decoder_autoparse_wait (schro_dec->decoder);
switch (it) {
case SCHRO_DECODER_FIRST_ACCESS_UNIT:
break;
case SCHRO_DECODER_NEED_BITS:
GST_DEBUG ("need bits");
go = 0;
break;
case SCHRO_DECODER_NEED_FRAME:
{
GstBuffer *outbuf;
GstVideoState *state;
SchroFrame *schro_frame;
GstFlowReturn flow_ret;
int size;
GST_DEBUG ("need frame");
state =
gst_base_video_decoder_get_state (GST_BASE_VIDEO_DECODER
(schro_dec));
size =
gst_video_format_get_size (state->format, state->width,
state->height);
flow_ret =
gst_pad_alloc_buffer_and_set_caps (GST_BASE_VIDEO_CODEC_SRC_PAD
(schro_dec), GST_BUFFER_OFFSET_NONE, size,
GST_PAD_CAPS (GST_BASE_VIDEO_CODEC_SRC_PAD (schro_dec)), &outbuf);
if (flow_ret != GST_FLOW_OK) {
go = FALSE;
ret = flow_ret;
break;
}
schro_frame = gst_schro_buffer_wrap (outbuf,
state->format, state->width, state->height);
schro_decoder_add_output_picture (schro_dec->decoder, schro_frame);
break;
}
case SCHRO_DECODER_OK:
{
SchroFrame *schro_frame;
SchroTag *tag;
GstVideoFrame *frame;
GST_DEBUG ("got frame");
tag = schro_decoder_get_picture_tag (schro_dec->decoder);
schro_frame = schro_decoder_pull (schro_dec->decoder);
frame = tag->value;
if (schro_frame) {
if (schro_frame->priv) {
GstFlowReturn flow_ret;
frame->src_buffer = gst_buffer_ref (GST_BUFFER (schro_frame->priv));
flow_ret =
gst_base_video_decoder_finish_frame (GST_BASE_VIDEO_DECODER
(schro_dec), frame);
if (flow_ret != GST_FLOW_OK) {
GST_DEBUG ("finish frame returned %d", flow_ret);
return flow_ret;
}
} else {
GST_DEBUG ("skipped frame");
}
schro_frame_unref (schro_frame);
}
if (!eos) {
go = FALSE;
}
}
break;
case SCHRO_DECODER_EOS:
GST_DEBUG ("eos");
go = FALSE;
break;
case SCHRO_DECODER_ERROR:
go = FALSE;
GST_DEBUG ("codec error");
ret = GST_FLOW_ERROR;
break;
}
}
return ret;
}
GstFlowReturn
gst_schro_dec_handle_frame (GstBaseVideoDecoder * base_video_decoder,
GstVideoFrame * frame)
{
GstSchroDec *schro_dec;
int schro_ret;
SchroBuffer *input_buffer;
GstVideoState *state;
schro_dec = GST_SCHRO_DEC (base_video_decoder);
GST_DEBUG ("handle frame");
state = gst_base_video_decoder_get_state (base_video_decoder);
gst_base_video_decoder_set_src_caps (base_video_decoder);
input_buffer = gst_schro_wrap_gst_buffer (frame->sink_buffer);
frame->sink_buffer = NULL;
input_buffer->tag = schro_tag_new (frame, NULL);
schro_ret = schro_decoder_autoparse_push (schro_dec->decoder, input_buffer);
return gst_schro_dec_process (schro_dec, FALSE);
}
GstFlowReturn
gst_schro_dec_finish (GstBaseVideoDecoder * base_video_decoder,
GstVideoFrame * frame)
{
GstSchroDec *schro_dec;
schro_dec = GST_SCHRO_DEC (base_video_decoder);
GST_DEBUG ("finish");
gst_base_video_decoder_set_src_caps (base_video_decoder);
schro_decoder_autoparse_push_end_of_sequence (schro_dec->decoder);
return gst_schro_dec_process (schro_dec, TRUE);
}

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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 <gst/gst.h>
#include <gst/video/video.h>
#include <gst/video/gstbasevideoencoder.h>
#include <string.h>
#include <schroedinger/schro.h>
#include <schroedinger/schrobitstream.h>
#include <schroedinger/schrovirtframe.h>
#include <math.h>
#include "gstschroutils.h"
GST_DEBUG_CATEGORY_EXTERN (schro_debug);
#define GST_CAT_DEFAULT schro_debug
#define GST_TYPE_SCHRO_ENC \
(gst_schro_enc_get_type())
#define GST_SCHRO_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SCHRO_ENC,GstSchroEnc))
#define GST_SCHRO_ENC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SCHRO_ENC,GstSchroEncClass))
#define GST_IS_SCHRO_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SCHRO_ENC))
#define GST_IS_SCHRO_ENC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SCHRO_ENC))
typedef struct _GstSchroEnc GstSchroEnc;
typedef struct _GstSchroEncClass GstSchroEncClass;
typedef enum
{
GST_SCHRO_ENC_OUTPUT_OGG,
GST_SCHRO_ENC_OUTPUT_QUICKTIME,
GST_SCHRO_ENC_OUTPUT_AVI,
GST_SCHRO_ENC_OUTPUT_MPEG_TS,
GST_SCHRO_ENC_OUTPUT_MP4
} GstSchroEncOutputType;
struct _GstSchroEnc
{
GstBaseVideoEncoder base_encoder;
GstPad *sinkpad;
GstPad *srcpad;
/* video properties */
GstSchroEncOutputType output_format;
/* state */
SchroEncoder *encoder;
SchroVideoFormat *video_format;
GstVideoFrame *eos_frame;
GstBuffer *seq_header_buffer;
guint64 last_granulepos;
};
struct _GstSchroEncClass
{
GstBaseVideoEncoderClass parent_class;
};
enum
{
LAST_SIGNAL
};
enum
{
ARG_0
};
static void gst_schro_enc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_schro_enc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstFlowReturn gst_schro_enc_process (GstSchroEnc * schro_enc);
static gboolean gst_schro_enc_set_format (GstBaseVideoEncoder *
base_video_encoder, GstVideoState * state);
static gboolean gst_schro_enc_start (GstBaseVideoEncoder * base_video_encoder);
static gboolean gst_schro_enc_stop (GstBaseVideoEncoder * base_video_encoder);
static gboolean gst_schro_enc_finish (GstBaseVideoEncoder * base_video_encoder,
GstVideoFrame * frame);
static gboolean gst_schro_enc_handle_frame (GstBaseVideoEncoder *
base_video_encoder, GstVideoFrame * frame);
static GstFlowReturn gst_schro_enc_shape_output (GstBaseVideoEncoder *
base_video_encoder, GstVideoFrame * frame);
static GstCaps *gst_schro_enc_get_caps (GstBaseVideoEncoder *
base_video_encoder);
static GstStaticPadTemplate gst_schro_enc_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{ I420, YV12, YUY2, UYVY, AYUV }"))
);
static GstStaticPadTemplate gst_schro_enc_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-dirac;video/x-qt-part;video/x-mp4-part")
);
GST_BOILERPLATE (GstSchroEnc, gst_schro_enc, GstBaseVideoEncoder,
GST_TYPE_BASE_VIDEO_ENCODER);
static void
gst_schro_enc_base_init (gpointer g_class)
{
static GstElementDetails schro_enc_details =
GST_ELEMENT_DETAILS ("Dirac Encoder",
"Codec/Encoder/Video",
"Encode raw video into Dirac stream",
"David Schleef <ds@schleef.org>");
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_schro_enc_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_schro_enc_sink_template));
gst_element_class_set_details (element_class, &schro_enc_details);
}
static void
gst_schro_enc_class_init (GstSchroEncClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseVideoEncoderClass *basevideocoder_class;
int i;
gobject_class = G_OBJECT_CLASS (klass);
gstelement_class = GST_ELEMENT_CLASS (klass);
basevideocoder_class = GST_BASE_VIDEO_ENCODER_CLASS (klass);
gobject_class->set_property = gst_schro_enc_set_property;
gobject_class->get_property = gst_schro_enc_get_property;
for (i = 0; i < schro_encoder_get_n_settings (); i++) {
const SchroEncoderSetting *setting;
setting = schro_encoder_get_setting_info (i);
switch (setting->type) {
case SCHRO_ENCODER_SETTING_TYPE_BOOLEAN:
g_object_class_install_property (gobject_class, i + 1,
g_param_spec_boolean (setting->name, setting->name, setting->name,
setting->default_value, G_PARAM_READWRITE));
break;
case SCHRO_ENCODER_SETTING_TYPE_INT:
g_object_class_install_property (gobject_class, i + 1,
g_param_spec_int (setting->name, setting->name, setting->name,
setting->min, setting->max, setting->default_value,
G_PARAM_READWRITE));
break;
case SCHRO_ENCODER_SETTING_TYPE_ENUM:
g_object_class_install_property (gobject_class, i + 1,
g_param_spec_int (setting->name, setting->name, setting->name,
setting->min, setting->max, setting->default_value,
G_PARAM_READWRITE));
break;
case SCHRO_ENCODER_SETTING_TYPE_DOUBLE:
g_object_class_install_property (gobject_class, i + 1,
g_param_spec_double (setting->name, setting->name, setting->name,
setting->min, setting->max, setting->default_value,
G_PARAM_READWRITE));
break;
default:
break;
}
}
basevideocoder_class->set_format =
GST_DEBUG_FUNCPTR (gst_schro_enc_set_format);
basevideocoder_class->start = GST_DEBUG_FUNCPTR (gst_schro_enc_start);
basevideocoder_class->stop = GST_DEBUG_FUNCPTR (gst_schro_enc_stop);
basevideocoder_class->finish = GST_DEBUG_FUNCPTR (gst_schro_enc_finish);
basevideocoder_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_schro_enc_handle_frame);
basevideocoder_class->shape_output =
GST_DEBUG_FUNCPTR (gst_schro_enc_shape_output);
basevideocoder_class->get_caps = GST_DEBUG_FUNCPTR (gst_schro_enc_get_caps);
}
static void
gst_schro_enc_init (GstSchroEnc * schro_enc, GstSchroEncClass * klass)
{
GST_DEBUG ("gst_schro_enc_init");
/* Normally, we'd create the encoder in ->start(), but we use the
* encoder to store object properties. So it needs to be created
* here. */
schro_enc->encoder = schro_encoder_new ();
schro_encoder_set_packet_assembly (schro_enc->encoder, TRUE);
schro_enc->video_format = schro_encoder_get_video_format (schro_enc->encoder);
}
static gboolean
gst_schro_enc_set_format (GstBaseVideoEncoder * base_video_encoder,
GstVideoState * state)
{
GstSchroEnc *schro_enc = GST_SCHRO_ENC (base_video_encoder);
schro_video_format_set_std_video_format (schro_enc->video_format,
SCHRO_VIDEO_FORMAT_CUSTOM);
switch (state->format) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
schro_enc->video_format->chroma_format = SCHRO_CHROMA_420;
break;
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
schro_enc->video_format->chroma_format = SCHRO_CHROMA_422;
break;
case GST_VIDEO_FORMAT_AYUV:
schro_enc->video_format->chroma_format = SCHRO_CHROMA_444;
break;
case GST_VIDEO_FORMAT_ARGB:
schro_enc->video_format->chroma_format = SCHRO_CHROMA_420;
break;
default:
g_assert_not_reached ();
}
schro_enc->video_format->frame_rate_numerator = state->fps_n;
schro_enc->video_format->frame_rate_denominator = state->fps_d;
schro_enc->video_format->width = state->width;
schro_enc->video_format->height = state->height;
schro_enc->video_format->clean_width = state->clean_width;
schro_enc->video_format->clean_height = state->clean_height;
schro_enc->video_format->left_offset = state->clean_offset_left;
schro_enc->video_format->top_offset = state->clean_offset_top;
schro_enc->video_format->aspect_ratio_numerator = state->par_n;
schro_enc->video_format->aspect_ratio_denominator = state->par_d;
schro_video_format_set_std_signal_range (schro_enc->video_format,
SCHRO_SIGNAL_RANGE_8BIT_VIDEO);
schro_video_format_set_std_colour_spec (schro_enc->video_format,
SCHRO_COLOUR_SPEC_HDTV);
schro_encoder_set_video_format (schro_enc->encoder, schro_enc->video_format);
schro_encoder_start (schro_enc->encoder);
schro_enc->seq_header_buffer =
gst_schro_wrap_schro_buffer (schro_encoder_encode_sequence_header
(schro_enc->encoder));
return TRUE;
}
static void
gst_schro_enc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstSchroEnc *src;
g_return_if_fail (GST_IS_SCHRO_ENC (object));
src = GST_SCHRO_ENC (object);
GST_DEBUG ("gst_schro_enc_set_property");
if (prop_id >= 1) {
const SchroEncoderSetting *setting;
setting = schro_encoder_get_setting_info (prop_id - 1);
switch (G_VALUE_TYPE (value)) {
case G_TYPE_DOUBLE:
schro_encoder_setting_set_double (src->encoder, setting->name,
g_value_get_double (value));
break;
case G_TYPE_INT:
schro_encoder_setting_set_double (src->encoder, setting->name,
g_value_get_int (value));
break;
case G_TYPE_BOOLEAN:
schro_encoder_setting_set_double (src->encoder, setting->name,
g_value_get_boolean (value));
break;
}
}
}
static void
gst_schro_enc_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstSchroEnc *src;
g_return_if_fail (GST_IS_SCHRO_ENC (object));
src = GST_SCHRO_ENC (object);
if (prop_id >= 1) {
const SchroEncoderSetting *setting;
setting = schro_encoder_get_setting_info (prop_id - 1);
switch (G_VALUE_TYPE (value)) {
case G_TYPE_DOUBLE:
g_value_set_double (value,
schro_encoder_setting_get_double (src->encoder, setting->name));
break;
case G_TYPE_INT:
g_value_set_int (value,
schro_encoder_setting_get_double (src->encoder, setting->name));
break;
case G_TYPE_BOOLEAN:
g_value_set_boolean (value,
schro_encoder_setting_get_double (src->encoder, setting->name));
break;
}
}
}
/*
* start is called once the input format is known. This function
* must decide on an output format and negotiate it.
*/
static gboolean
gst_schro_enc_start (GstBaseVideoEncoder * base_video_encoder)
{
GstSchroEnc *schro_enc = GST_SCHRO_ENC (base_video_encoder);
GstCaps *caps;
GstStructure *structure;
GST_DEBUG ("set_output_caps");
caps =
gst_pad_get_allowed_caps (GST_BASE_VIDEO_CODEC_SRC_PAD
(base_video_encoder));
if (gst_caps_is_empty (caps)) {
gst_caps_unref (caps);
return FALSE;
}
structure = gst_caps_get_structure (caps, 0);
if (gst_structure_has_name (structure, "video/x-dirac")) {
schro_enc->output_format = GST_SCHRO_ENC_OUTPUT_OGG;
} else if (gst_structure_has_name (structure, "video/x-qt-part")) {
schro_enc->output_format = GST_SCHRO_ENC_OUTPUT_QUICKTIME;
} else if (gst_structure_has_name (structure, "video/x-avi-part")) {
schro_enc->output_format = GST_SCHRO_ENC_OUTPUT_AVI;
} else if (gst_structure_has_name (structure, "video/x-mp4-part")) {
schro_enc->output_format = GST_SCHRO_ENC_OUTPUT_MP4;
} else {
return FALSE;
}
gst_base_video_encoder_set_latency_fields (base_video_encoder,
2 * (int) schro_encoder_setting_get_double (schro_enc->encoder,
"queue_depth"));
gst_caps_unref (caps);
return TRUE;
}
static gboolean
gst_schro_enc_stop (GstBaseVideoEncoder * base_video_encoder)
{
GstSchroEnc *schro_enc = GST_SCHRO_ENC (base_video_encoder);
if (schro_enc->encoder) {
schro_encoder_free (schro_enc->encoder);
schro_enc->encoder = NULL;
}
return TRUE;
}
static gboolean
gst_schro_enc_finish (GstBaseVideoEncoder * base_video_encoder,
GstVideoFrame * frame)
{
GstSchroEnc *schro_enc = GST_SCHRO_ENC (base_video_encoder);
GST_DEBUG ("finish");
schro_enc->eos_frame = frame;
schro_encoder_end_of_stream (schro_enc->encoder);
gst_schro_enc_process (schro_enc);
return TRUE;
}
static gboolean
gst_schro_enc_handle_frame (GstBaseVideoEncoder * base_video_encoder,
GstVideoFrame * frame)
{
GstSchroEnc *schro_enc = GST_SCHRO_ENC (base_video_encoder);
SchroFrame *schro_frame;
GstFlowReturn ret;
const GstVideoState *state;
state = gst_base_video_encoder_get_state (base_video_encoder);
schro_frame = gst_schro_buffer_wrap (frame->sink_buffer,
state->format, state->width, state->height);
GST_DEBUG ("pushing frame %p", frame);
schro_encoder_push_frame_full (schro_enc->encoder, schro_frame, frame);
ret = gst_schro_enc_process (schro_enc);
return ret;
}
#if 0
static void
gst_caps_add_streamheader (GstCaps * caps, GList * list)
{
GValue array = { 0 };
GValue value = { 0 };
GstBuffer *buf;
GList *g;
g_value_init (&array, GST_TYPE_ARRAY);
for (g = g_list_first (list); g; g = g_list_next (list)) {
g_value_init (&value, GST_TYPE_BUFFER);
buf = gst_buffer_copy (GST_BUFFER (g->data));
gst_value_set_buffer (&value, buf);
gst_buffer_unref (buf);
gst_value_array_append_value (&array, &value);
g_value_unset (&value);
}
gst_structure_set_value (gst_caps_get_structure (caps, 0),
"streamheader", &array);
g_value_unset (&array);
}
#endif
static GstCaps *
gst_schro_enc_get_caps (GstBaseVideoEncoder * base_video_encoder)
{
GstCaps *caps;
const GstVideoState *state;
GstSchroEnc *schro_enc;
schro_enc = GST_SCHRO_ENC (base_video_encoder);
state = gst_base_video_encoder_get_state (base_video_encoder);
if (schro_enc->output_format == GST_SCHRO_ENC_OUTPUT_OGG) {
caps = gst_caps_new_simple ("video/x-dirac",
"width", G_TYPE_INT, state->width,
"height", G_TYPE_INT, state->height,
"framerate", GST_TYPE_FRACTION, state->fps_n,
state->fps_d,
"pixel-aspect-ratio", GST_TYPE_FRACTION, state->par_n,
state->par_d, NULL);
GST_BUFFER_FLAG_SET (schro_enc->seq_header_buffer, GST_BUFFER_FLAG_IN_CAPS);
{
GValue array = { 0 };
GValue value = { 0 };
GstBuffer *buf;
int size;
g_value_init (&array, GST_TYPE_ARRAY);
g_value_init (&value, GST_TYPE_BUFFER);
size = GST_BUFFER_SIZE (schro_enc->seq_header_buffer);
buf = gst_buffer_new_and_alloc (size + SCHRO_PARSE_HEADER_SIZE);
memcpy (GST_BUFFER_DATA (buf),
GST_BUFFER_DATA (schro_enc->seq_header_buffer), size);
GST_WRITE_UINT32_BE (GST_BUFFER_DATA (buf) + size + 0, 0x42424344);
GST_WRITE_UINT8 (GST_BUFFER_DATA (buf) + size + 4,
SCHRO_PARSE_CODE_END_OF_SEQUENCE);
GST_WRITE_UINT32_BE (GST_BUFFER_DATA (buf) + size + 5, 0);
GST_WRITE_UINT32_BE (GST_BUFFER_DATA (buf) + size + 9, size);
gst_value_set_buffer (&value, buf);
gst_buffer_unref (buf);
gst_value_array_append_value (&array, &value);
gst_structure_set_value (gst_caps_get_structure (caps, 0),
"streamheader", &array);
g_value_unset (&value);
g_value_unset (&array);
}
} else if (schro_enc->output_format == GST_SCHRO_ENC_OUTPUT_QUICKTIME) {
caps = gst_caps_new_simple ("video/x-qt-part",
"format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('d', 'r', 'a', 'c'),
"width", G_TYPE_INT, state->width,
"height", G_TYPE_INT, state->height,
"framerate", GST_TYPE_FRACTION, state->fps_n,
state->fps_d,
"pixel-aspect-ratio", GST_TYPE_FRACTION, state->par_n,
state->par_d, NULL);
} else if (schro_enc->output_format == GST_SCHRO_ENC_OUTPUT_AVI) {
caps = gst_caps_new_simple ("video/x-avi-part",
"format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('d', 'r', 'a', 'c'),
"width", G_TYPE_INT, state->width,
"height", G_TYPE_INT, state->height,
"framerate", GST_TYPE_FRACTION, state->fps_n,
state->fps_d,
"pixel-aspect-ratio", GST_TYPE_FRACTION, state->par_n,
state->par_d, NULL);
} else if (schro_enc->output_format == GST_SCHRO_ENC_OUTPUT_MPEG_TS) {
caps = gst_caps_new_simple ("video/x-mpegts-part",
"format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('d', 'r', 'a', 'c'),
"width", G_TYPE_INT, state->width,
"height", G_TYPE_INT, state->height,
"framerate", GST_TYPE_FRACTION, state->fps_n,
state->fps_d,
"pixel-aspect-ratio", GST_TYPE_FRACTION, state->par_n,
state->par_d, NULL);
} else if (schro_enc->output_format == GST_SCHRO_ENC_OUTPUT_MP4) {
caps = gst_caps_new_simple ("video/x-mp4-part",
"format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('d', 'r', 'a', 'c'),
"width", G_TYPE_INT, state->width,
"height", G_TYPE_INT, state->height,
"framerate", GST_TYPE_FRACTION, state->fps_n,
state->fps_d,
"pixel-aspect-ratio", GST_TYPE_FRACTION, state->par_n,
state->par_d, NULL);
} else {
g_assert_not_reached ();
}
return caps;
}
static GstFlowReturn
gst_schro_enc_shape_output_ogg (GstBaseVideoEncoder * base_video_encoder,
GstVideoFrame * frame)
{
GstSchroEnc *schro_enc;
int dpn;
int delay;
int dist;
int pt;
int dt;
guint64 granulepos_hi;
guint64 granulepos_low;
GstBuffer *buf = frame->src_buffer;
schro_enc = GST_SCHRO_ENC (base_video_encoder);
dpn = frame->decode_frame_number;
pt = frame->presentation_frame_number * 2;
dt = frame->decode_frame_number * 2;
delay = pt - dt;
dist = frame->distance_from_sync;
GST_DEBUG ("sys %d dpn %d pt %d dt %d delay %d dist %d",
(int) frame->system_frame_number,
(int) frame->decode_frame_number, pt, dt, delay, dist);
granulepos_hi = (((uint64_t) pt - delay) << 9) | ((dist >> 8));
granulepos_low = (delay << 9) | (dist & 0xff);
GST_DEBUG ("granulepos %lld:%lld", granulepos_hi, granulepos_low);
if (frame->is_eos) {
GST_BUFFER_OFFSET_END (buf) = schro_enc->last_granulepos;
} else {
schro_enc->last_granulepos = (granulepos_hi << 22) | (granulepos_low);
GST_BUFFER_OFFSET_END (buf) = schro_enc->last_granulepos;
}
gst_buffer_set_caps (buf, base_video_encoder->caps);
return gst_pad_push (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_encoder), buf);
}
static GstFlowReturn
gst_schro_enc_shape_output_quicktime (GstBaseVideoEncoder * base_video_encoder,
GstVideoFrame * frame)
{
GstBuffer *buf = frame->src_buffer;
const GstVideoState *state;
state = gst_base_video_encoder_get_state (base_video_encoder);
GST_BUFFER_TIMESTAMP (buf) = gst_video_state_get_timestamp (state,
frame->presentation_frame_number);
GST_BUFFER_DURATION (buf) = gst_video_state_get_timestamp (state,
frame->presentation_frame_number + 1) - GST_BUFFER_TIMESTAMP (buf);
GST_BUFFER_OFFSET_END (buf) = gst_video_state_get_timestamp (state,
frame->system_frame_number);
GST_BUFFER_OFFSET (buf) = GST_CLOCK_TIME_NONE;
if (frame->is_sync_point &&
frame->presentation_frame_number == frame->system_frame_number) {
GST_BUFFER_FLAG_UNSET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
} else {
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
}
gst_buffer_set_caps (buf, base_video_encoder->caps);
return gst_pad_push (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_encoder), buf);
}
static GstFlowReturn
gst_schro_enc_shape_output_mp4 (GstBaseVideoEncoder * base_video_encoder,
GstVideoFrame * frame)
{
GstBuffer *buf = frame->src_buffer;
const GstVideoState *state;
state = gst_base_video_encoder_get_state (base_video_encoder);
GST_BUFFER_TIMESTAMP (buf) = gst_video_state_get_timestamp (state,
frame->presentation_frame_number);
GST_BUFFER_DURATION (buf) = gst_video_state_get_timestamp (state,
frame->presentation_frame_number + 1) - GST_BUFFER_TIMESTAMP (buf);
GST_BUFFER_OFFSET_END (buf) = gst_video_state_get_timestamp (state,
frame->decode_frame_number);
GST_BUFFER_OFFSET (buf) = GST_CLOCK_TIME_NONE;
GST_BUFFER_OFFSET_END (buf) = gst_video_state_get_timestamp (state,
frame->system_frame_number);
if (frame->is_sync_point &&
frame->presentation_frame_number == frame->system_frame_number) {
GST_BUFFER_FLAG_UNSET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
} else {
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
}
gst_buffer_set_caps (buf, base_video_encoder->caps);
return gst_pad_push (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_encoder), buf);
}
static GstFlowReturn
gst_schro_enc_shape_output (GstBaseVideoEncoder * base_video_encoder,
GstVideoFrame * frame)
{
GstSchroEnc *schro_enc;
schro_enc = GST_SCHRO_ENC (base_video_encoder);
switch (schro_enc->output_format) {
case GST_SCHRO_ENC_OUTPUT_OGG:
return gst_schro_enc_shape_output_ogg (base_video_encoder, frame);
case GST_SCHRO_ENC_OUTPUT_QUICKTIME:
return gst_schro_enc_shape_output_quicktime (base_video_encoder, frame);
case GST_SCHRO_ENC_OUTPUT_MP4:
return gst_schro_enc_shape_output_mp4 (base_video_encoder, frame);
default:
g_assert_not_reached ();
break;
}
return GST_FLOW_ERROR;
}
static GstFlowReturn
gst_schro_enc_process (GstSchroEnc * schro_enc)
{
SchroBuffer *encoded_buffer;
GstVideoFrame *frame;
GstFlowReturn ret;
int presentation_frame;
void *voidptr;
GstBaseVideoEncoder *base_video_encoder = GST_BASE_VIDEO_ENCODER (schro_enc);
GST_DEBUG ("process");
while (1) {
switch (schro_encoder_wait (schro_enc->encoder)) {
case SCHRO_STATE_NEED_FRAME:
return GST_FLOW_OK;
case SCHRO_STATE_END_OF_STREAM:
GST_DEBUG ("EOS");
return GST_FLOW_OK;
case SCHRO_STATE_HAVE_BUFFER:
voidptr = NULL;
encoded_buffer = schro_encoder_pull_full (schro_enc->encoder,
&presentation_frame, &voidptr);
frame = voidptr;
if (encoded_buffer == NULL) {
GST_DEBUG ("encoder_pull returned NULL");
/* FIXME This shouldn't happen */
return GST_FLOW_ERROR;
}
if (voidptr == NULL) {
GST_DEBUG ("got eos");
frame = schro_enc->eos_frame;
}
if (SCHRO_PARSE_CODE_IS_SEQ_HEADER (encoded_buffer->data[4])) {
frame->is_sync_point = TRUE;
}
frame->src_buffer = gst_schro_wrap_schro_buffer (encoded_buffer);
ret = gst_base_video_encoder_finish_frame (base_video_encoder, frame);
if (ret != GST_FLOW_OK) {
GST_DEBUG ("pad_push returned %d", ret);
return ret;
}
break;
case SCHRO_STATE_AGAIN:
break;
}
}
return GST_FLOW_OK;
}

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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 <gst/gst.h>
#include <gst/base/gstadapter.h>
#include <gst/video/video.h>
#include <gst/video/gstbasevideoparse.h>
#include <string.h>
#include <schroedinger/schro.h>
#include <liboil/liboil.h>
#include <math.h>
#include <schroedinger/schroparse.h>
GST_DEBUG_CATEGORY_EXTERN (schro_debug);
#define GST_CAT_DEFAULT schro_debug
#define GST_TYPE_SCHRO_PARSE \
(gst_schro_parse_get_type())
#define GST_SCHRO_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SCHRO_PARSE,GstSchroParse))
#define GST_SCHRO_PARSE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SCHRO_PARSE,GstSchroParseClass))
#define GST_IS_SCHRO_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SCHRO_PARSE))
#define GST_IS_SCHRO_PARSE_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SCHRO_PARSE))
typedef struct _GstSchroParse GstSchroParse;
typedef struct _GstSchroParseClass GstSchroParseClass;
typedef enum
{
GST_SCHRO_PARSE_OUTPUT_OGG,
GST_SCHRO_PARSE_OUTPUT_QUICKTIME,
GST_SCHRO_PARSE_OUTPUT_AVI,
GST_SCHRO_PARSE_OUTPUT_MPEG_TS,
GST_SCHRO_PARSE_OUTPUT_MP4
} GstSchroParseOutputType;
struct _GstSchroParse
{
GstBaseVideoParse base_video_parse;
GstPad *sinkpad, *srcpad;
GstSchroParseOutputType output_format;
GstBuffer *seq_header_buffer;
/* state */
gboolean have_picture;
int buf_picture_number;
int seq_hdr_picture_number;
int picture_number;
guint64 last_granulepos;
int bytes_per_picture;
};
struct _GstSchroParseClass
{
GstBaseVideoParseClass base_video_parse_class;
};
/* GstSchroParse signals and args */
enum
{
LAST_SIGNAL
};
enum
{
ARG_0
};
static void gst_schro_parse_finalize (GObject * object);
static gboolean gst_schro_parse_start (GstBaseVideoParse * base_video_parse);
static gboolean gst_schro_parse_stop (GstBaseVideoParse * base_video_parse);
static gboolean gst_schro_parse_reset (GstBaseVideoParse * base_video_parse);
static int gst_schro_parse_scan_for_sync (GstAdapter * adapter,
gboolean at_eos, int offset, int n);
static gboolean gst_schro_parse_parse_data (GstBaseVideoParse *
base_video_parse, gboolean at_eos);
static gboolean gst_schro_parse_shape_output (GstBaseVideoParse *
base_video_parse, GstVideoFrame * frame);
static GstCaps *gst_schro_parse_get_caps (GstBaseVideoParse * base_video_parse);
static GstStaticPadTemplate gst_schro_parse_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-dirac")
);
static GstStaticPadTemplate gst_schro_parse_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS
("video/x-dirac;video/x-qt-part;video/x-avi-part;video/x-mp4-part")
);
GST_BOILERPLATE (GstSchroParse, gst_schro_parse, GstBaseVideoParse,
GST_TYPE_BASE_VIDEO_PARSE);
static void
gst_schro_parse_base_init (gpointer g_class)
{
static GstElementDetails compress_details =
GST_ELEMENT_DETAILS ("Dirac Parser",
"Codec/Parser/Video",
"Parse Dirac streams",
"David Schleef <ds@schleef.org>");
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_schro_parse_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_schro_parse_sink_template));
gst_element_class_set_details (element_class, &compress_details);
}
static void
gst_schro_parse_class_init (GstSchroParseClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
GstBaseVideoParseClass *base_video_parse_class;
gobject_class = G_OBJECT_CLASS (klass);
element_class = GST_ELEMENT_CLASS (klass);
base_video_parse_class = GST_BASE_VIDEO_PARSE_CLASS (klass);
gobject_class->finalize = gst_schro_parse_finalize;
base_video_parse_class->start = GST_DEBUG_FUNCPTR (gst_schro_parse_start);
base_video_parse_class->stop = GST_DEBUG_FUNCPTR (gst_schro_parse_stop);
base_video_parse_class->reset = GST_DEBUG_FUNCPTR (gst_schro_parse_reset);
base_video_parse_class->parse_data =
GST_DEBUG_FUNCPTR (gst_schro_parse_parse_data);
base_video_parse_class->shape_output =
GST_DEBUG_FUNCPTR (gst_schro_parse_shape_output);
base_video_parse_class->scan_for_sync =
GST_DEBUG_FUNCPTR (gst_schro_parse_scan_for_sync);
base_video_parse_class->get_caps =
GST_DEBUG_FUNCPTR (gst_schro_parse_get_caps);
}
static void
gst_schro_parse_init (GstSchroParse * schro_parse, GstSchroParseClass * klass)
{
GstBaseVideoParse *base_video_parse = GST_BASE_VIDEO_PARSE (schro_parse);
GST_DEBUG ("gst_schro_parse_init");
schro_parse->output_format = GST_SCHRO_PARSE_OUTPUT_OGG;
base_video_parse->reorder_depth = 2;
}
static gboolean
gst_schro_parse_reset (GstBaseVideoParse * base_video_parse)
{
GstSchroParse *schro_parse;
schro_parse = GST_SCHRO_PARSE (base_video_parse);
GST_DEBUG ("reset");
return TRUE;
}
static void
gst_schro_parse_finalize (GObject * object)
{
GstSchroParse *schro_parse;
g_return_if_fail (GST_IS_SCHRO_PARSE (object));
schro_parse = GST_SCHRO_PARSE (object);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gboolean
gst_schro_parse_start (GstBaseVideoParse * base_video_parse)
{
GstSchroParse *schro_parse = GST_SCHRO_PARSE (base_video_parse);
GstCaps *caps;
GstStructure *structure;
GST_DEBUG ("start");
caps =
gst_pad_get_allowed_caps (GST_BASE_VIDEO_CODEC_SRC_PAD
(base_video_parse));
if (gst_caps_is_empty (caps)) {
gst_caps_unref (caps);
return FALSE;
}
structure = gst_caps_get_structure (caps, 0);
if (gst_structure_has_name (structure, "video/x-dirac")) {
schro_parse->output_format = GST_SCHRO_PARSE_OUTPUT_OGG;
} else if (gst_structure_has_name (structure, "video/x-qt-part")) {
schro_parse->output_format = GST_SCHRO_PARSE_OUTPUT_QUICKTIME;
} else if (gst_structure_has_name (structure, "video/x-avi-part")) {
schro_parse->output_format = GST_SCHRO_PARSE_OUTPUT_AVI;
} else if (gst_structure_has_name (structure, "video/x-mpegts-part")) {
schro_parse->output_format = GST_SCHRO_PARSE_OUTPUT_MPEG_TS;
} else if (gst_structure_has_name (structure, "video/x-mp4-part")) {
schro_parse->output_format = GST_SCHRO_PARSE_OUTPUT_MP4;
} else {
return FALSE;
}
gst_caps_unref (caps);
return TRUE;
}
static gboolean
gst_schro_parse_stop (GstBaseVideoParse * base_video_parse)
{
return TRUE;
}
static void
parse_sequence_header (GstSchroParse * schro_parse, guint8 * data, int size)
{
SchroVideoFormat video_format;
int ret;
GstVideoState *state;
GST_DEBUG ("parse_sequence_header size=%d", size);
state = gst_base_video_parse_get_state (GST_BASE_VIDEO_PARSE (schro_parse));
schro_parse->seq_header_buffer = gst_buffer_new_and_alloc (size);
memcpy (GST_BUFFER_DATA (schro_parse->seq_header_buffer), data, size);
ret = schro_parse_decode_sequence_header (data + 13, size - 13,
&video_format);
if (ret) {
state->fps_n = video_format.frame_rate_numerator;
state->fps_d = video_format.frame_rate_denominator;
GST_DEBUG ("Frame rate is %d/%d", state->fps_n, state->fps_d);
state->width = video_format.width;
state->height = video_format.height;
GST_DEBUG ("Frame dimensions are %d x %d\n", state->width, state->height);
state->clean_width = video_format.clean_width;
state->clean_height = video_format.clean_height;
state->clean_offset_left = video_format.left_offset;
state->clean_offset_top = video_format.top_offset;
state->par_n = video_format.aspect_ratio_numerator;
state->par_d = video_format.aspect_ratio_denominator;
GST_DEBUG ("Pixel aspect ratio is %d/%d", state->par_n, state->par_d);
gst_base_video_parse_set_state (GST_BASE_VIDEO_PARSE (schro_parse), state);
} else {
GST_WARNING ("Failed to get frame rate from sequence header");
}
}
static int
gst_schro_parse_scan_for_sync (GstAdapter * adapter, gboolean at_eos,
int offset, int n)
{
int n_available = gst_adapter_available (adapter) - offset;
if (n_available < 4) {
if (at_eos) {
return n_available;
} else {
return 0;
}
}
n_available -= 3;
return gst_adapter_masked_scan_uint32 (adapter, 0xffffffff, 0x42424344,
offset, MIN (n, n_available - 3));
}
static GstFlowReturn
gst_schro_parse_parse_data (GstBaseVideoParse * base_video_parse,
gboolean at_eos)
{
GstSchroParse *schro_parse;
unsigned char header[SCHRO_PARSE_HEADER_SIZE];
int next;
int prev;
int parse_code;
GST_DEBUG ("parse_data");
schro_parse = GST_SCHRO_PARSE (base_video_parse);
if (gst_adapter_available (base_video_parse->input_adapter) <
SCHRO_PARSE_HEADER_SIZE) {
return GST_BASE_VIDEO_PARSE_FLOW_NEED_DATA;
}
GST_DEBUG ("available %d",
gst_adapter_available (base_video_parse->input_adapter));
gst_adapter_copy (base_video_parse->input_adapter, header, 0,
SCHRO_PARSE_HEADER_SIZE);
parse_code = header[4];
next = GST_READ_UINT32_BE (header + 5);
prev = GST_READ_UINT32_BE (header + 9);
GST_DEBUG ("%08x %02x %08x %08x",
GST_READ_UINT32_BE (header), parse_code, next, prev);
if (memcmp (header, "BBCD", 4) != 0 ||
(next & 0xf0000000) || (prev & 0xf0000000)) {
gst_base_video_parse_lost_sync (base_video_parse);
return GST_BASE_VIDEO_PARSE_FLOW_NEED_DATA;
}
if (SCHRO_PARSE_CODE_IS_END_OF_SEQUENCE (parse_code)) {
GstVideoFrame *frame;
if (next != 0 && next != SCHRO_PARSE_HEADER_SIZE) {
GST_WARNING ("next is not 0 or 13 in EOS packet (%d)", next);
}
gst_base_video_parse_add_to_frame (base_video_parse,
SCHRO_PARSE_HEADER_SIZE);
frame = gst_base_video_parse_get_frame (base_video_parse);
frame->is_eos = TRUE;
SCHRO_DEBUG ("eos");
return gst_base_video_parse_finish_frame (base_video_parse);
}
if (gst_adapter_available (base_video_parse->input_adapter) < next) {
return GST_BASE_VIDEO_PARSE_FLOW_NEED_DATA;
}
if (SCHRO_PARSE_CODE_IS_SEQ_HEADER (parse_code)) {
guint8 *data;
data = g_malloc (next);
gst_adapter_copy (base_video_parse->input_adapter, data, 0, next);
parse_sequence_header (schro_parse, data, next);
base_video_parse->current_frame->is_sync_point = TRUE;
g_free (data);
}
if (schro_parse->seq_header_buffer == NULL) {
gst_adapter_flush (base_video_parse->input_adapter, next);
return GST_FLOW_OK;
}
if (SCHRO_PARSE_CODE_IS_PICTURE (parse_code)) {
GstVideoFrame *frame;
guint8 tmp[4];
frame = gst_base_video_parse_get_frame (base_video_parse);
#if 0
if (GST_CLOCK_TIME_IS_VALID (GST_BUFFER_TIMESTAMP (buf))) {
frame->presentation_timestamp = GST_BUFFER_TIMESTAMP (buf);
}
#endif
gst_adapter_copy (base_video_parse->input_adapter, tmp,
SCHRO_PARSE_HEADER_SIZE, 4);
frame->presentation_frame_number = GST_READ_UINT32_BE (tmp);
gst_base_video_parse_add_to_frame (base_video_parse, next);
return gst_base_video_parse_finish_frame (base_video_parse);
} else {
gst_base_video_parse_add_to_frame (base_video_parse, next);
}
return GST_FLOW_OK;
}
static GstFlowReturn
gst_schro_parse_shape_output_ogg (GstBaseVideoParse * base_video_parse,
GstVideoFrame * frame)
{
GstSchroParse *schro_parse;
int dpn;
int delay;
int dist;
int pt;
int dt;
guint64 granulepos_hi;
guint64 granulepos_low;
GstBuffer *buf = frame->src_buffer;
schro_parse = GST_SCHRO_PARSE (base_video_parse);
dpn = frame->decode_frame_number;
pt = frame->presentation_frame_number * 2;
dt = frame->decode_frame_number * 2;
delay = pt - dt;
dist = frame->distance_from_sync;
GST_DEBUG ("sys %d dpn %d pt %d dt %d delay %d dist %d",
(int) frame->system_frame_number,
(int) frame->decode_frame_number, pt, dt, delay, dist);
granulepos_hi = (((guint64) pt - delay) << 9) | ((dist >> 8));
granulepos_low = (delay << 9) | (dist & 0xff);
GST_DEBUG ("granulepos %lld:%lld", granulepos_hi, granulepos_low);
if (frame->is_eos) {
GST_BUFFER_OFFSET_END (buf) = schro_parse->last_granulepos;
} else {
schro_parse->last_granulepos = (granulepos_hi << 22) | (granulepos_low);
GST_BUFFER_OFFSET_END (buf) = schro_parse->last_granulepos;
}
return gst_base_video_parse_push (base_video_parse, buf);
}
static GstFlowReturn
gst_schro_parse_shape_output_quicktime (GstBaseVideoParse * base_video_parse,
GstVideoFrame * frame)
{
GstBuffer *buf = frame->src_buffer;
const GstVideoState *state;
state = gst_base_video_parse_get_state (base_video_parse);
GST_BUFFER_OFFSET_END (buf) = gst_video_state_get_timestamp (state,
frame->system_frame_number);
if (frame->is_sync_point &&
frame->presentation_frame_number == frame->system_frame_number) {
GST_BUFFER_FLAG_UNSET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
GST_DEBUG ("sync point");
} else {
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
}
return gst_base_video_parse_push (base_video_parse, buf);
}
static GstFlowReturn
gst_schro_parse_shape_output_mpeg_ts (GstBaseVideoParse * base_video_parse,
GstVideoFrame * frame)
{
GstBuffer *buf = frame->src_buffer;
const GstVideoState *state;
state = gst_base_video_parse_get_state (base_video_parse);
return gst_base_video_parse_push (base_video_parse, buf);
}
static GstFlowReturn
gst_schro_parse_shape_output (GstBaseVideoParse * base_video_parse,
GstVideoFrame * frame)
{
GstSchroParse *schro_parse;
schro_parse = GST_SCHRO_PARSE (base_video_parse);
switch (schro_parse->output_format) {
case GST_SCHRO_PARSE_OUTPUT_OGG:
return gst_schro_parse_shape_output_ogg (base_video_parse, frame);
case GST_SCHRO_PARSE_OUTPUT_QUICKTIME:
return gst_schro_parse_shape_output_quicktime (base_video_parse, frame);
case GST_SCHRO_PARSE_OUTPUT_MPEG_TS:
return gst_schro_parse_shape_output_mpeg_ts (base_video_parse, frame);
default:
break;
}
return GST_FLOW_ERROR;
}
static GstCaps *
gst_schro_parse_get_caps (GstBaseVideoParse * base_video_parse)
{
GstCaps *caps;
GstVideoState *state;
GstSchroParse *schro_parse;
schro_parse = GST_SCHRO_PARSE (base_video_parse);
state = gst_base_video_parse_get_state (base_video_parse);
if (schro_parse->output_format == GST_SCHRO_PARSE_OUTPUT_OGG) {
caps = gst_caps_new_simple ("video/x-dirac",
"width", G_TYPE_INT, state->width,
"height", G_TYPE_INT, state->height,
"framerate", GST_TYPE_FRACTION, state->fps_n,
state->fps_d,
"pixel-aspect-ratio", GST_TYPE_FRACTION, state->par_n,
state->par_d, NULL);
GST_BUFFER_FLAG_SET (schro_parse->seq_header_buffer,
GST_BUFFER_FLAG_IN_CAPS);
{
GValue array = { 0 };
GValue value = { 0 };
GstBuffer *buf;
int size;
g_value_init (&array, GST_TYPE_ARRAY);
g_value_init (&value, GST_TYPE_BUFFER);
size = GST_BUFFER_SIZE (schro_parse->seq_header_buffer);
buf = gst_buffer_new_and_alloc (size + SCHRO_PARSE_HEADER_SIZE);
memcpy (GST_BUFFER_DATA (buf),
GST_BUFFER_DATA (schro_parse->seq_header_buffer), size);
GST_WRITE_UINT32_BE (GST_BUFFER_DATA (buf) + size + 0, 0x42424344);
GST_WRITE_UINT8 (GST_BUFFER_DATA (buf) + size + 4,
SCHRO_PARSE_CODE_END_OF_SEQUENCE);
GST_WRITE_UINT32_BE (GST_BUFFER_DATA (buf) + size + 5, 0);
GST_WRITE_UINT32_BE (GST_BUFFER_DATA (buf) + size + 9, size);
gst_value_set_buffer (&value, buf);
gst_buffer_unref (buf);
gst_value_array_append_value (&array, &value);
gst_structure_set_value (gst_caps_get_structure (caps, 0),
"streamheader", &array);
g_value_unset (&value);
g_value_unset (&array);
}
} else if (schro_parse->output_format == GST_SCHRO_PARSE_OUTPUT_QUICKTIME) {
caps = gst_caps_new_simple ("video/x-qt-part",
"format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('d', 'r', 'a', 'c'),
"width", G_TYPE_INT, state->width,
"height", G_TYPE_INT, state->height,
"framerate", GST_TYPE_FRACTION, state->fps_n,
state->fps_d,
"pixel-aspect-ratio", GST_TYPE_FRACTION, state->par_n,
state->par_d, NULL);
} else if (schro_parse->output_format == GST_SCHRO_PARSE_OUTPUT_AVI) {
caps = gst_caps_new_simple ("video/x-avi-part",
"format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('d', 'r', 'a', 'c'),
"width", G_TYPE_INT, state->width,
"height", G_TYPE_INT, state->height,
"framerate", GST_TYPE_FRACTION, state->fps_n,
state->fps_d,
"pixel-aspect-ratio", GST_TYPE_FRACTION, state->par_n,
state->par_d, NULL);
} else if (schro_parse->output_format == GST_SCHRO_PARSE_OUTPUT_MPEG_TS) {
caps = gst_caps_new_simple ("video/x-mpegts-part",
"format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('d', 'r', 'a', 'c'),
"width", G_TYPE_INT, state->width,
"height", G_TYPE_INT, state->height,
"framerate", GST_TYPE_FRACTION, state->fps_n,
state->fps_d,
"pixel-aspect-ratio", GST_TYPE_FRACTION, state->par_n,
state->par_d, NULL);
} else if (schro_parse->output_format == GST_SCHRO_PARSE_OUTPUT_MP4) {
caps = gst_caps_new_simple ("video/x-mp4-part",
"format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('d', 'r', 'a', 'c'),
"width", G_TYPE_INT, state->width,
"height", G_TYPE_INT, state->height,
"framerate", GST_TYPE_FRACTION, state->fps_n,
state->fps_d,
"pixel-aspect-ratio", GST_TYPE_FRACTION, state->par_n,
state->par_d, NULL);
} else {
g_assert_not_reached ();
}
return caps;
}

149
ext/schroedinger/gstschroutils.c Normal file
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@ -0,0 +1,149 @@
/* Schrodinger
* 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
//#define SCHRO_ENABLE_UNSTABLE_API
#include <gst/gst.h>
#include <gst/video/video.h>
#include <schroedinger/schro.h>
#include <schroedinger/schrobitstream.h>
#include <schroedinger/schrovirtframe.h>
#include <math.h>
#include <string.h>
GST_DEBUG_CATEGORY_EXTERN (schro_debug);
#define GST_CAT_DEFAULT schro_debug
static void
gst_schro_frame_free (SchroFrame * frame, void *priv)
{
gst_buffer_unref (GST_BUFFER (priv));
}
SchroFrame *
gst_schro_buffer_wrap (GstBuffer * buf, GstVideoFormat format, int width,
int height)
{
SchroFrame *frame;
switch (format) {
case GST_VIDEO_FORMAT_I420:
frame =
schro_frame_new_from_data_I420 (GST_BUFFER_DATA (buf), width, height);
break;
case GST_VIDEO_FORMAT_YV12:
frame =
schro_frame_new_from_data_YV12 (GST_BUFFER_DATA (buf), width, height);
break;
case GST_VIDEO_FORMAT_YUY2:
frame =
schro_frame_new_from_data_YUY2 (GST_BUFFER_DATA (buf), width, height);
break;
case GST_VIDEO_FORMAT_UYVY:
frame =
schro_frame_new_from_data_UYVY (GST_BUFFER_DATA (buf), width, height);
break;
case GST_VIDEO_FORMAT_AYUV:
frame =
schro_frame_new_from_data_AYUV (GST_BUFFER_DATA (buf), width, height);
break;
#if 0
case GST_VIDEO_FORMAT_ARGB:
{
SchroFrame *rgbframe =
schro_frame_new_from_data_AYUV (GST_BUFFER_DATA (buf), width, height);
SchroFrame *vframe1;
SchroFrame *vframe2;
SchroFrame *vframe3;
vframe1 = schro_virt_frame_new_unpack (rgbframe);
vframe2 = schro_virt_frame_new_color_matrix (vframe1);
vframe3 =
schro_virt_frame_new_subsample (vframe2, SCHRO_FRAME_FORMAT_U8_420);
frame = schro_frame_new_and_alloc (NULL, SCHRO_FRAME_FORMAT_U8_420,
width, height);
schro_virt_frame_render (vframe3, frame);
schro_frame_unref (vframe3);
}
break;
#endif
default:
g_assert_not_reached ();
}
schro_frame_set_free_callback (frame, gst_schro_frame_free, buf);
return frame;
}
#ifdef GST_BUFFER_FREE_FUNC
static void
schro_buf_free_func (gpointer priv)
{
SchroBuffer *buffer = (SchroBuffer *) priv;
schro_buffer_unref (buffer);
}
#endif
/* takes the reference */
GstBuffer *
gst_schro_wrap_schro_buffer (SchroBuffer * buffer)
{
GstBuffer *gstbuf;
#ifdef GST_BUFFER_FREE_FUNC
gstbuf = gst_buffer_new ();
GST_BUFFER_DATA (gstbuf) = buffer->data;
GST_BUFFER_SIZE (gstbuf) = buffer->length;
GST_BUFFER_MALLOCDATA (gstbuf) = (void *) buffer;
GST_BUFFER_FREE_FUNC (gstbuf) = schro_buf_free_func;
#else
gstbuf = gst_buffer_new_and_alloc (buffer->length);
memcpy (GST_BUFFER_DATA (gstbuf), buffer->data, buffer->length);
#endif
return gstbuf;
}
static void
gst_schro_buffer_free (SchroBuffer * buffer, void *priv)
{
gst_buffer_unref (GST_BUFFER (priv));
}
SchroBuffer *
gst_schro_wrap_gst_buffer (GstBuffer * buffer)
{
SchroBuffer *schrobuf;
schrobuf = schro_buffer_new_with_data (GST_BUFFER_DATA (buffer),
GST_BUFFER_SIZE (buffer));
schrobuf->free = gst_schro_buffer_free;
schrobuf->priv = buffer;
return schrobuf;
}

34
ext/schroedinger/gstschroutils.h Normal file
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/* Schrodinger
* 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_SCHRO_UTILS_H_
#define _GST_SCHRO_UTILS_H_
#include <gst/gst.h>
#include <gst/video/video.h>
#include <schroedinger/schro.h>
SchroFrame *
gst_schro_buffer_wrap (GstBuffer *buf, GstVideoFormat format, int width,
int height);
GstBuffer * gst_schro_wrap_schro_buffer (SchroBuffer *buffer);
SchroBuffer * gst_schro_wrap_gst_buffer (GstBuffer *buffer);
#endif

4
gst-libs/gst/Makefile.am
View file

@ -1,5 +1,5 @@
SUBDIRS = interfaces signalprocessor
SUBDIRS = interfaces signalprocessor video
noinst_HEADERS = gst-i18n-plugin.h gettext.h
DIST_SUBDIRS = dshow interfaces signalprocessor
DIST_SUBDIRS = dshow interfaces signalprocessor video

24
gst-libs/gst/video/Makefile.am Normal file
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@ -0,0 +1,24 @@
lib_LTLIBRARIES = libgstbasevideo-@GST_MAJORMINOR@.la
CLEANFILES = $(BUILT_SOURCES)
libgstbasevideo_@GST_MAJORMINOR@_la_SOURCES = \
gstbasevideoutils.c \
gstbasevideocodec.c \
gstbasevideodecoder.c \
gstbasevideoencoder.c \
gstbasevideoparse.c
libgstbasevideo_@GST_MAJORMINOR@includedir = $(includedir)/gstreamer-@GST_MAJORMINOR@/gst/video
libgstbasevideo_@GST_MAJORMINOR@include_HEADERS = \
gstbasevideoutils.h \
gstbasevideocodec.h \
gstbasevideodecoder.h \
gstbasevideoencoder.h \
gstbasevideoparse.h
libgstbasevideo_@GST_MAJORMINOR@_la_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_CFLAGS)
libgstbasevideo_@GST_MAJORMINOR@_la_LIBADD = $(GST_BASE_LIBS) $(GST_LIBS)
libgstbasevideo_@GST_MAJORMINOR@_la_LDFLAGS = $(GST_LIB_LDFLAGS) $(GST_ALL_LDFLAGS) $(GST_LT_LDFLAGS)

565
gst-libs/gst/video/gstbasevideocodec.c Normal file
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@ -0,0 +1,565 @@
/* 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 (basevideo_debug);
#define GST_CAT_DEFAULT basevideo_debug
/* GstBaseVideoCodec signals and args */
enum
{
LAST_SIGNAL
};
enum
{
ARG_0
};
static void gst_base_video_codec_finalize (GObject * object);
static GstStateChangeReturn gst_base_video_codec_change_state (GstElement *
element, GstStateChange transition);
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 (basevideo_debug, "basevideo", 0,
"Base Video Classes");
}
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_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_pad_use_fixed_caps (base_video_codec->srcpad);
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_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 %lld", 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 %lld %lld", start, 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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/* 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_
#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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161
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_
#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:
*
* Custom GstFlowReturn value indicating that more data is needed.
*/
#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;
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 offset;
GstClockTime last_timestamp;
GstClockTime last_sink_timestamp;
GstClockTime last_sink_offset_end;
guint64 base_picture_number;
int field_index;
};
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);
gboolean (*finish) (GstBaseVideoDecoder *coder, GstVideoFrame *frame);
GstFlowReturn (*handle_frame) (GstBaseVideoDecoder *coder, GstVideoFrame *frame);
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);
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_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);
G_END_DECLS
#endif

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gst-libs/gst/video/gstbasevideoencoder.c 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstbasevideoencoder.h"
#include "gstbasevideoutils.h"
GST_DEBUG_CATEGORY_EXTERN (basevideo_debug);
#define GST_CAT_DEFAULT basevideo_debug
static void gst_base_video_encoder_finalize (GObject * object);
static gboolean gst_base_video_encoder_sink_setcaps (GstPad * pad,
GstCaps * caps);
static gboolean gst_base_video_encoder_sink_event (GstPad * pad,
GstEvent * event);
static GstFlowReturn gst_base_video_encoder_chain (GstPad * pad,
GstBuffer * buf);
static GstStateChangeReturn gst_base_video_encoder_change_state (GstElement *
element, GstStateChange transition);
static const GstQueryType *gst_base_video_encoder_get_query_types (GstPad *
pad);
static gboolean gst_base_video_encoder_src_query (GstPad * pad,
GstQuery * query);
static void
_do_init (GType object_type)
{
const GInterfaceInfo preset_interface_info = {
NULL, /* interface_init */
NULL, /* interface_finalize */
NULL /* interface_data */
};
g_type_add_interface_static (object_type, GST_TYPE_PRESET,
&preset_interface_info);
}
GST_BOILERPLATE_FULL (GstBaseVideoEncoder, gst_base_video_encoder,
GstBaseVideoCodec, GST_TYPE_BASE_VIDEO_CODEC, _do_init);
static void
gst_base_video_encoder_base_init (gpointer g_class)
{
}
static void
gst_base_video_encoder_class_init (GstBaseVideoEncoderClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = G_OBJECT_CLASS (klass);
gstelement_class = GST_ELEMENT_CLASS (klass);
gobject_class->finalize = gst_base_video_encoder_finalize;
gstelement_class->change_state = gst_base_video_encoder_change_state;
parent_class = g_type_class_peek_parent (klass);
}
static void
gst_base_video_encoder_init (GstBaseVideoEncoder * base_video_encoder,
GstBaseVideoEncoderClass * klass)
{
GstPad *pad;
GST_DEBUG ("gst_base_video_encoder_init");
pad = GST_BASE_VIDEO_CODEC_SINK_PAD (base_video_encoder);
gst_pad_set_chain_function (pad, gst_base_video_encoder_chain);
gst_pad_set_event_function (pad, gst_base_video_encoder_sink_event);
gst_pad_set_setcaps_function (pad, gst_base_video_encoder_sink_setcaps);
pad = GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_encoder);
gst_pad_set_query_type_function (pad, gst_base_video_encoder_get_query_types);
gst_pad_set_query_function (pad, gst_base_video_encoder_src_query);
}
static gboolean
gst_base_video_encoder_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstBaseVideoEncoder *base_video_encoder;
GstBaseVideoEncoderClass *base_video_encoder_class;
base_video_encoder = GST_BASE_VIDEO_ENCODER (gst_pad_get_parent (pad));
base_video_encoder_class =
GST_BASE_VIDEO_ENCODER_GET_CLASS (base_video_encoder);
GST_DEBUG ("setcaps");
gst_base_video_state_from_caps (&base_video_encoder->state, caps);
base_video_encoder_class->set_format (base_video_encoder,
&base_video_encoder->state);
base_video_encoder_class->start (base_video_encoder);
g_object_unref (base_video_encoder);
return TRUE;
}
static void
gst_base_video_encoder_finalize (GObject * object)
{
GstBaseVideoEncoder *base_video_encoder;
GstBaseVideoEncoderClass *base_video_encoder_class;
g_return_if_fail (GST_IS_BASE_VIDEO_ENCODER (object));
base_video_encoder = GST_BASE_VIDEO_ENCODER (object);
base_video_encoder_class = GST_BASE_VIDEO_ENCODER_GET_CLASS (object);
GST_DEBUG ("finalize");
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gboolean
gst_base_video_encoder_sink_event (GstPad * pad, GstEvent * event)
{
GstBaseVideoEncoder *base_video_encoder;
GstBaseVideoEncoderClass *base_video_encoder_class;
gboolean ret = FALSE;
base_video_encoder = GST_BASE_VIDEO_ENCODER (gst_pad_get_parent (pad));
base_video_encoder_class =
GST_BASE_VIDEO_ENCODER_GET_CLASS (base_video_encoder);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
{
GstVideoFrame *frame;
frame = g_malloc0 (sizeof (GstVideoFrame));
frame->presentation_frame_number =
base_video_encoder->presentation_frame_number;
frame->presentation_duration = 0;
frame->is_eos = TRUE;
base_video_encoder->presentation_frame_number++;
base_video_encoder->frames =
g_list_append (base_video_encoder->frames, frame);
base_video_encoder_class->finish (base_video_encoder, frame);
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_encoder),
event);
}
break;
case GST_EVENT_NEWSEGMENT:
{
gboolean update;
double rate;
double applied_rate;
GstFormat format;
gint64 start;
gint64 stop;
gint64 position;
gst_event_parse_new_segment_full (event, &update, &rate,
&applied_rate, &format, &start, &stop, &position);
if (format != GST_FORMAT_TIME)
goto newseg_wrong_format;
GST_DEBUG ("new segment %lld %lld", start, position);
gst_segment_set_newsegment_full (&base_video_encoder->state.segment,
update, rate, applied_rate, format, start, stop, position);
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_encoder),
event);
}
break;
default:
/* FIXME this changes the order of events */
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_encoder),
event);
break;
}
done:
gst_object_unref (base_video_encoder);
return ret;
newseg_wrong_format:
{
GST_DEBUG_OBJECT (base_video_encoder, "received non TIME newsegment");
gst_event_unref (event);
goto done;
}
}
static const GstQueryType *
gst_base_video_encoder_get_query_types (GstPad * pad)
{
static const GstQueryType query_types[] = {
GST_QUERY_CONVERT,
GST_QUERY_LATENCY,
0
};
return query_types;
}
static gboolean
gst_base_video_encoder_src_query (GstPad * pad, GstQuery * query)
{
GstBaseVideoEncoder *enc;
gboolean res;
GstPad *peerpad;
enc = GST_BASE_VIDEO_ENCODER (gst_pad_get_parent (pad));
peerpad = gst_pad_get_peer (GST_BASE_VIDEO_CODEC_SINK_PAD (enc));
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 (&enc->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;
}
case GST_QUERY_LATENCY:
{
gboolean live;
GstClockTime min_latency, max_latency;
res = gst_pad_query (peerpad, query);
if (res) {
gst_query_parse_latency (query, &live, &min_latency, &max_latency);
min_latency += enc->min_latency;
if (max_latency != GST_CLOCK_TIME_NONE) {
max_latency += enc->max_latency;
}
gst_query_set_latency (query, live, min_latency, max_latency);
}
}
break;
default:
res = gst_pad_query_default (pad, query);
}
gst_object_unref (peerpad);
gst_object_unref (enc);
return res;
error:
GST_DEBUG_OBJECT (enc, "query failed");
gst_object_unref (peerpad);
gst_object_unref (enc);
return res;
}
static gboolean
gst_pad_is_negotiated (GstPad * pad)
{
GstCaps *caps;
g_return_val_if_fail (pad != NULL, FALSE);
caps = gst_pad_get_negotiated_caps (pad);
if (caps) {
gst_caps_unref (caps);
return TRUE;
}
return FALSE;
}
static GstFlowReturn
gst_base_video_encoder_chain (GstPad * pad, GstBuffer * buf)
{
GstBaseVideoEncoder *base_video_encoder;
GstBaseVideoEncoderClass *klass;
GstVideoFrame *frame;
if (!gst_pad_is_negotiated (pad)) {
return GST_FLOW_NOT_NEGOTIATED;
}
base_video_encoder = GST_BASE_VIDEO_ENCODER (gst_pad_get_parent (pad));
klass = GST_BASE_VIDEO_ENCODER_GET_CLASS (base_video_encoder);
if (base_video_encoder->sink_clipping) {
gint64 start = GST_BUFFER_TIMESTAMP (buf);
gint64 stop = start + GST_BUFFER_DURATION (buf);
gint64 clip_start;
gint64 clip_stop;
if (!gst_segment_clip (&base_video_encoder->state.segment,
GST_FORMAT_TIME, start, stop, &clip_start, &clip_stop)) {
GST_DEBUG ("clipping to segment dropped frame");
goto done;
}
}
frame = g_malloc0 (sizeof (GstVideoFrame));
frame->sink_buffer = buf;
frame->presentation_timestamp = GST_BUFFER_TIMESTAMP (buf);
frame->presentation_duration = GST_BUFFER_DURATION (buf);
frame->presentation_frame_number =
base_video_encoder->presentation_frame_number;
base_video_encoder->presentation_frame_number++;
base_video_encoder->frames =
g_list_append (base_video_encoder->frames, frame);
klass->handle_frame (base_video_encoder, frame);
done:
g_object_unref (base_video_encoder);
return GST_FLOW_OK;
}
static GstStateChangeReturn
gst_base_video_encoder_change_state (GstElement * element,
GstStateChange transition)
{
GstBaseVideoEncoder *base_video_encoder;
GstBaseVideoEncoderClass *base_video_encoder_class;
GstStateChangeReturn ret;
base_video_encoder = GST_BASE_VIDEO_ENCODER (element);
base_video_encoder_class = GST_BASE_VIDEO_ENCODER_GET_CLASS (element);
switch (transition) {
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
if (base_video_encoder_class->stop) {
base_video_encoder_class->stop (base_video_encoder);
}
break;
default:
break;
}
return ret;
}
GstFlowReturn
gst_base_video_encoder_finish_frame (GstBaseVideoEncoder * base_video_encoder,
GstVideoFrame * frame)
{
GstFlowReturn ret;
GstBaseVideoEncoderClass *base_video_encoder_class;
base_video_encoder_class =
GST_BASE_VIDEO_ENCODER_GET_CLASS (base_video_encoder);
frame->system_frame_number = base_video_encoder->system_frame_number;
base_video_encoder->system_frame_number++;
if (frame->is_sync_point) {
base_video_encoder->distance_from_sync = 0;
GST_BUFFER_FLAG_UNSET (frame->src_buffer, GST_BUFFER_FLAG_DELTA_UNIT);
} else {
GST_BUFFER_FLAG_SET (frame->src_buffer, GST_BUFFER_FLAG_DELTA_UNIT);
}
frame->distance_from_sync = base_video_encoder->distance_from_sync;
base_video_encoder->distance_from_sync++;
frame->decode_frame_number = frame->system_frame_number - 1;
if (frame->decode_frame_number < 0) {
frame->decode_timestamp = 0;
} else {
frame->decode_timestamp = gst_util_uint64_scale (frame->decode_frame_number,
GST_SECOND * base_video_encoder->state.fps_d,
base_video_encoder->state.fps_n);
}
GST_BUFFER_TIMESTAMP (frame->src_buffer) = frame->presentation_timestamp;
GST_BUFFER_DURATION (frame->src_buffer) = frame->presentation_duration;
GST_BUFFER_OFFSET (frame->src_buffer) = frame->decode_timestamp;
base_video_encoder->frames =
g_list_remove (base_video_encoder->frames, frame);
if (!base_video_encoder->set_output_caps) {
GstCaps *caps;
if (base_video_encoder_class->get_caps) {
caps = base_video_encoder_class->get_caps (base_video_encoder);
} else {
caps = gst_caps_new_simple ("video/unknown", NULL);
}
base_video_encoder->caps = gst_caps_ref (caps);
gst_pad_set_caps (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_encoder), caps);
base_video_encoder->set_output_caps = TRUE;
}
if (base_video_encoder_class->shape_output) {
ret = base_video_encoder_class->shape_output (base_video_encoder, frame);
} else {
ret =
gst_pad_push (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_encoder),
frame->src_buffer);
}
g_free (frame);
return ret;
}
int
gst_base_video_encoder_get_height (GstBaseVideoEncoder * base_video_encoder)
{
return base_video_encoder->state.height;
}
int
gst_base_video_encoder_get_width (GstBaseVideoEncoder * base_video_encoder)
{
return base_video_encoder->state.width;
}
const GstVideoState *
gst_base_video_encoder_get_state (GstBaseVideoEncoder * base_video_encoder)
{
return &base_video_encoder->state;
}
GstFlowReturn
gst_base_video_encoder_end_of_stream (GstBaseVideoEncoder * base_video_encoder,
GstBuffer * buffer)
{
if (base_video_encoder->frames) {
GST_WARNING ("EOS with frames left over");
}
return gst_pad_push (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_encoder),
buffer);
}
void
gst_base_video_encoder_set_latency (GstBaseVideoEncoder * base_video_encoder,
GstClockTime min_latency, GstClockTime max_latency)
{
g_return_if_fail (min_latency >= 0);
g_return_if_fail (max_latency >= min_latency);
base_video_encoder->min_latency = min_latency;
base_video_encoder->max_latency = max_latency;
}
void
gst_base_video_encoder_set_latency_fields (GstBaseVideoEncoder *
base_video_encoder, int n_fields)
{
gint64 latency;
latency = gst_util_uint64_scale (n_fields,
base_video_encoder->state.fps_d * GST_SECOND,
2 * base_video_encoder->state.fps_n);
gst_base_video_encoder_set_latency (base_video_encoder, latency, latency);
}

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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_ENCODER_H_
#define _GST_BASE_VIDEO_ENCODER_H_
#include <gst/video/gstbasevideocodec.h>
#include <gst/video/gstbasevideoutils.h>
G_BEGIN_DECLS
#define GST_TYPE_BASE_VIDEO_ENCODER \
(gst_base_video_encoder_get_type())
#define GST_BASE_VIDEO_ENCODER(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASE_VIDEO_ENCODER,GstBaseVideoEncoder))
#define GST_BASE_VIDEO_ENCODER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASE_VIDEO_ENCODER,GstBaseVideoEncoderClass))
#define GST_BASE_VIDEO_ENCODER_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_BASE_VIDEO_ENCODER,GstBaseVideoEncoderClass))
#define GST_IS_BASE_VIDEO_ENCODER(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASE_VIDEO_ENCODER))
#define GST_IS_BASE_VIDEO_ENCODER_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASE_VIDEO_ENCODER))
/**
* GST_BASE_VIDEO_ENCODER_SINK_NAME:
*
* The name of the templates for the sink pad.
*/
#define GST_BASE_VIDEO_ENCODER_SINK_NAME "sink"
/**
* GST_BASE_VIDEO_ENCODER_SRC_NAME:
*
* The name of the templates for the source pad.
*/
#define GST_BASE_VIDEO_ENCODER_SRC_NAME "src"
typedef struct _GstBaseVideoEncoder GstBaseVideoEncoder;
typedef struct _GstBaseVideoEncoderClass GstBaseVideoEncoderClass;
struct _GstBaseVideoEncoder
{
GstBaseVideoCodec base_video_codec;
/*< private >*/
GList *frames;
GstVideoState state;
gboolean sink_clipping;
guint64 presentation_frame_number;
guint64 system_frame_number;
int distance_from_sync;
GstCaps *caps;
gboolean set_output_caps;
gint64 min_latency;
gint64 max_latency;
};
struct _GstBaseVideoEncoderClass
{
GstBaseVideoCodecClass base_video_codec_class;
gboolean (*set_format) (GstBaseVideoEncoder *coder, GstVideoState *state);
gboolean (*start) (GstBaseVideoEncoder *coder);
gboolean (*stop) (GstBaseVideoEncoder *coder);
gboolean (*finish) (GstBaseVideoEncoder *coder, GstVideoFrame *frame);
gboolean (*handle_frame) (GstBaseVideoEncoder *coder, GstVideoFrame *frame);
GstFlowReturn (*shape_output) (GstBaseVideoEncoder *coder, GstVideoFrame *frame);
GstCaps *(*get_caps) (GstBaseVideoEncoder *coder);
};
GType gst_base_video_encoder_get_type (void);
int gst_base_video_encoder_get_width (GstBaseVideoEncoder *coder);
int gst_base_video_encoder_get_height (GstBaseVideoEncoder *coder);
const GstVideoState *gst_base_video_encoder_get_state (GstBaseVideoEncoder *coder);
guint64 gst_base_video_encoder_get_timestamp_offset (GstBaseVideoEncoder *coder);
GstVideoFrame *gst_base_video_encoder_get_frame (GstBaseVideoEncoder *coder,
int frame_number);
GstFlowReturn gst_base_video_encoder_finish_frame (GstBaseVideoEncoder *base_video_encoder,
GstVideoFrame *frame);
GstFlowReturn gst_base_video_encoder_end_of_stream (GstBaseVideoEncoder *base_video_encoder,
GstBuffer *buffer);
void gst_base_video_encoder_set_latency (GstBaseVideoEncoder *base_video_encoder,
GstClockTime min_latency, GstClockTime max_latency);
void gst_base_video_encoder_set_latency_fields (GstBaseVideoEncoder *base_video_encoder,
int n_fields);
G_END_DECLS
#endif

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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 "gstbasevideoparse.h"
#include <string.h>
#include <math.h>
GST_DEBUG_CATEGORY_EXTERN (basevideo_debug);
#define GST_CAT_DEFAULT basevideo_debug
/* GstBaseVideoParse signals and args */
enum
{
LAST_SIGNAL
};
enum
{
ARG_0
};
static void gst_base_video_parse_finalize (GObject * object);
static const GstQueryType *gst_base_video_parse_get_query_types (GstPad * pad);
static gboolean gst_base_video_parse_src_query (GstPad * pad, GstQuery * query);
static gboolean gst_base_video_parse_sink_query (GstPad * pad,
GstQuery * query);
static gboolean gst_base_video_parse_src_event (GstPad * pad, GstEvent * event);
static gboolean gst_base_video_parse_sink_event (GstPad * pad,
GstEvent * event);
static GstStateChangeReturn gst_base_video_parse_change_state (GstElement *
element, GstStateChange transition);
static GstFlowReturn gst_base_video_parse_push_all (GstBaseVideoParse *
base_video_parse, gboolean at_eos);
static GstFlowReturn gst_base_video_parse_chain (GstPad * pad, GstBuffer * buf);
static void gst_base_video_parse_free_frame (GstVideoFrame * frame);
static GstVideoFrame *gst_base_video_parse_new_frame (GstBaseVideoParse *
base_video_parse);
GST_BOILERPLATE (GstBaseVideoParse, gst_base_video_parse,
GstBaseVideoCodec, GST_TYPE_BASE_VIDEO_CODEC);
static void
gst_base_video_parse_base_init (gpointer g_class)
{
}
static void
gst_base_video_parse_class_init (GstBaseVideoParseClass * 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_parse_finalize;
element_class->change_state = gst_base_video_parse_change_state;
}
static void
gst_base_video_parse_init (GstBaseVideoParse * base_video_parse,
GstBaseVideoParseClass * klass)
{
GstPad *pad;
GST_DEBUG ("gst_base_video_parse_init");
pad = GST_BASE_VIDEO_CODEC_SINK_PAD (base_video_parse);
gst_pad_set_chain_function (pad, gst_base_video_parse_chain);
gst_pad_set_query_function (pad, gst_base_video_parse_sink_query);
gst_pad_set_event_function (pad, gst_base_video_parse_sink_event);
pad = GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_parse);
gst_pad_set_query_type_function (pad, gst_base_video_parse_get_query_types);
gst_pad_set_query_function (pad, gst_base_video_parse_src_query);
gst_pad_set_event_function (pad, gst_base_video_parse_src_event);
base_video_parse->input_adapter = gst_adapter_new ();
base_video_parse->output_adapter = gst_adapter_new ();
base_video_parse->reorder_depth = 1;
base_video_parse->current_frame =
gst_base_video_parse_new_frame (base_video_parse);
}
static void
gst_base_video_parse_reset (GstBaseVideoParse * base_video_parse)
{
GST_DEBUG ("reset");
base_video_parse->discont = TRUE;
base_video_parse->have_sync = FALSE;
base_video_parse->system_frame_number = 0;
base_video_parse->presentation_frame_number = 0;
if (base_video_parse->caps) {
gst_caps_unref (base_video_parse->caps);
base_video_parse->caps = NULL;
}
gst_segment_init (&base_video_parse->state.segment, GST_FORMAT_TIME);
gst_adapter_clear (base_video_parse->input_adapter);
gst_adapter_clear (base_video_parse->output_adapter);
if (base_video_parse->current_frame) {
gst_base_video_parse_free_frame (base_video_parse->current_frame);
}
base_video_parse->current_frame =
gst_base_video_parse_new_frame (base_video_parse);
}
static void
gst_base_video_parse_finalize (GObject * object)
{
GstBaseVideoParse *base_video_parse;
g_return_if_fail (GST_IS_BASE_VIDEO_PARSE (object));
base_video_parse = GST_BASE_VIDEO_PARSE (object);
if (base_video_parse->input_adapter) {
g_object_unref (base_video_parse->input_adapter);
}
if (base_video_parse->output_adapter) {
g_object_unref (base_video_parse->output_adapter);
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static const GstQueryType *
gst_base_video_parse_get_query_types (GstPad * pad)
{
static const GstQueryType query_types[] = {
GST_QUERY_POSITION,
GST_QUERY_DURATION,
GST_QUERY_CONVERT,
0
};
return query_types;
}
#if 0
static gboolean
gst_base_video_parse_src_convert (GstPad * pad,
GstFormat src_format, gint64 src_value,
GstFormat * dest_format, gint64 * dest_value)
{
gboolean res;
GstBaseVideoParse *dec;
if (src_format == *dest_format) {
*dest_value = src_value;
return TRUE;
}
dec = GST_BASE_VIDEO_PARSE (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_parse_sink_convert (GstPad * pad,
GstFormat src_format, gint64 src_value,
GstFormat * dest_format, gint64 * dest_value)
{
gboolean res = TRUE;
GstBaseVideoParse *dec;
if (src_format == *dest_format) {
*dest_value = src_value;
return TRUE;
}
dec = GST_BASE_VIDEO_PARSE (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
static gboolean
gst_base_video_parse_src_query (GstPad * pad, GstQuery * query)
{
GstBaseVideoParse *base_parse;
gboolean res = FALSE;
base_parse = GST_BASE_VIDEO_PARSE (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_parse->presentation_frame_number,
base_parse->state.fps_n, base_parse->state.fps_d);
time += base_parse->state.segment.time;
GST_DEBUG ("query position %lld", time);
res = gst_base_video_encoded_video_convert (&base_parse->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 (GST_BASE_VIDEO_CODEC_SINK_PAD
(base_parse)), query);
if (!res)
goto error;
break;
case GST_QUERY_CONVERT:
{
GstFormat src_fmt, dest_fmt;
gint64 src_val, dest_val;
GST_WARNING ("query convert");
gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
res = gst_base_video_encoded_video_convert (&base_parse->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_parse);
return res;
error:
GST_DEBUG_OBJECT (base_parse, "query failed");
goto done;
}
static gboolean
gst_base_video_parse_sink_query (GstPad * pad, GstQuery * query)
{
GstBaseVideoParse *base_video_parse;
gboolean res = FALSE;
base_video_parse = GST_BASE_VIDEO_PARSE (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_parse->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_parse);
return res;
error:
GST_DEBUG_OBJECT (base_video_parse, "query failed");
goto done;
}
static gboolean
gst_base_video_parse_src_event (GstPad * pad, GstEvent * event)
{
GstBaseVideoParse *base_video_parse;
gboolean res = FALSE;
base_video_parse = GST_BASE_VIDEO_PARSE (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_parse->state,
format, cur, &tformat, &tcur);
if (!res)
goto convert_error;
res = gst_base_video_encoded_video_convert (&base_video_parse->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 (GST_BASE_VIDEO_CODEC_SINK_PAD (base_video_parse),
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_parse);
base_video_parse->proportion = proportion;
base_video_parse->earliest_time = timestamp + diff;
GST_OBJECT_UNLOCK (base_video_parse);
GST_DEBUG_OBJECT (base_video_parse,
"got QoS %" GST_TIME_FORMAT ", %" G_GINT64_FORMAT,
GST_TIME_ARGS (timestamp), diff);
res = gst_pad_push_event (base_video_parse->sinkpad, event);
break;
}
#endif
default:
res =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SINK_PAD (base_video_parse),
event);
break;
}
done:
gst_object_unref (base_video_parse);
return res;
convert_error:
GST_DEBUG_OBJECT (base_video_parse, "could not convert format");
goto done;
}
static gboolean
gst_base_video_parse_sink_event (GstPad * pad, GstEvent * event)
{
GstBaseVideoParse *base_video_parse;
gboolean ret = FALSE;
base_video_parse = GST_BASE_VIDEO_PARSE (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_START:
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_parse),
event);
break;
case GST_EVENT_FLUSH_STOP:
gst_base_video_parse_reset (base_video_parse);
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_parse),
event);
break;
case GST_EVENT_EOS:
if (gst_base_video_parse_push_all (base_video_parse,
FALSE) == GST_FLOW_ERROR) {
gst_event_unref (event);
return FALSE;
}
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_parse),
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 %lld %lld", start, time);
gst_segment_set_newsegment (&base_video_parse->state.segment, update,
rate, format, start, stop, time);
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_parse),
event);
break;
}
default:
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_parse),
event);
break;
}
done:
gst_object_unref (base_video_parse);
return ret;
newseg_wrong_format:
GST_DEBUG_OBJECT (base_video_parse, "received non TIME newsegment");
gst_event_unref (event);
goto done;
newseg_wrong_rate:
GST_DEBUG_OBJECT (base_video_parse, "negative rates not supported");
gst_event_unref (event);
goto done;
}
static GstStateChangeReturn
gst_base_video_parse_change_state (GstElement * element,
GstStateChange transition)
{
GstBaseVideoParse *base_parse = GST_BASE_VIDEO_PARSE (element);
GstStateChangeReturn ret;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_base_video_parse_reset (base_parse);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (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_parse_reset (base_parse);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static guint64
gst_base_video_parse_get_timestamp (GstBaseVideoParse * base_video_parse,
int picture_number)
{
if (picture_number < 0) {
return base_video_parse->timestamp_offset -
(gint64) gst_util_uint64_scale (-picture_number,
base_video_parse->state.fps_d * GST_SECOND,
base_video_parse->state.fps_n);
} else {
return base_video_parse->timestamp_offset +
gst_util_uint64_scale (picture_number,
base_video_parse->state.fps_d * GST_SECOND,
base_video_parse->state.fps_n);
}
}
static GstFlowReturn
gst_base_video_parse_push_all (GstBaseVideoParse * base_video_parse,
gboolean at_eos)
{
GstFlowReturn ret = GST_FLOW_OK;
/* FIXME do stuff */
return ret;
}
static GstBuffer *
gst_adapter_get_buffer (GstAdapter * adapter)
{
return gst_buffer_ref (GST_BUFFER (adapter->buflist->data));
}
static GstFlowReturn
gst_base_video_parse_chain (GstPad * pad, GstBuffer * buf)
{
GstBaseVideoParse *base_video_parse;
GstBaseVideoParseClass *klass;
GstBuffer *buffer;
GstFlowReturn ret;
GST_DEBUG ("chain with %d bytes", GST_BUFFER_SIZE (buf));
base_video_parse = GST_BASE_VIDEO_PARSE (GST_PAD_PARENT (pad));
klass = GST_BASE_VIDEO_PARSE_GET_CLASS (base_video_parse);
if (!base_video_parse->started) {
klass->start (base_video_parse);
base_video_parse->started = TRUE;
}
if (G_UNLIKELY (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DISCONT))) {
GST_DEBUG_OBJECT (base_video_parse, "received DISCONT buffer");
gst_base_video_parse_reset (base_video_parse);
base_video_parse->discont = TRUE;
base_video_parse->have_sync = FALSE;
}
if (GST_BUFFER_TIMESTAMP (buf) != GST_CLOCK_TIME_NONE) {
base_video_parse->last_timestamp = GST_BUFFER_TIMESTAMP (buf);
}
gst_adapter_push (base_video_parse->input_adapter, buf);
if (!base_video_parse->have_sync) {
int n, m;
GST_DEBUG ("no sync, scanning");
n = gst_adapter_available (base_video_parse->input_adapter);
m = klass->scan_for_sync (base_video_parse->input_adapter, FALSE, 0, n);
gst_adapter_flush (base_video_parse->input_adapter, m);
if (m < n) {
GST_DEBUG ("found possible sync after %d bytes (of %d)", m, n);
/* this is only "maybe" sync */
base_video_parse->have_sync = TRUE;
}
if (!base_video_parse->have_sync) {
return GST_FLOW_OK;
}
}
/* FIXME: use gst_adapter_prev_timestamp() here instead? */
buffer = gst_adapter_get_buffer (base_video_parse->input_adapter);
gst_buffer_unref (buffer);
/* FIXME check klass->parse_data */
do {
ret = klass->parse_data (base_video_parse, FALSE);
} while (ret == GST_FLOW_OK);
if (ret == GST_BASE_VIDEO_PARSE_FLOW_NEED_DATA) {
return GST_FLOW_OK;
}
return ret;
}
GstVideoState *
gst_base_video_parse_get_state (GstBaseVideoParse * base_video_parse)
{
return &base_video_parse->state;
}
void
gst_base_video_parse_set_state (GstBaseVideoParse * base_video_parse,
GstVideoState * state)
{
GST_DEBUG ("set_state");
memcpy (&base_video_parse->state, state, sizeof (GstVideoState));
/* FIXME set caps */
}
gboolean
gst_base_video_parse_set_src_caps (GstBaseVideoParse * base_video_parse,
GstCaps * caps)
{
g_return_val_if_fail (GST_IS_BASE_VIDEO_PARSE (base_video_parse), FALSE);
GST_DEBUG ("set_src_caps");
return gst_pad_set_caps (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_parse),
caps);
}
void
gst_base_video_parse_lost_sync (GstBaseVideoParse * base_video_parse)
{
g_return_if_fail (GST_IS_BASE_VIDEO_PARSE (base_video_parse));
GST_DEBUG ("lost_sync");
if (gst_adapter_available (base_video_parse->input_adapter) >= 1) {
gst_adapter_flush (base_video_parse->input_adapter, 1);
}
base_video_parse->have_sync = FALSE;
}
GstVideoFrame *
gst_base_video_parse_get_frame (GstBaseVideoParse * base_video_parse)
{
g_return_val_if_fail (GST_IS_BASE_VIDEO_PARSE (base_video_parse), NULL);
return base_video_parse->current_frame;
}
void
gst_base_video_parse_add_to_frame (GstBaseVideoParse * base_video_parse,
int n_bytes)
{
GstBuffer *buf;
GST_DEBUG ("add_to_frame");
buf = gst_adapter_take_buffer (base_video_parse->input_adapter, n_bytes);
gst_adapter_push (base_video_parse->output_adapter, buf);
}
GstFlowReturn
gst_base_video_parse_finish_frame (GstBaseVideoParse * base_video_parse)
{
GstVideoFrame *frame = base_video_parse->current_frame;
GstBuffer *buffer;
GstBaseVideoParseClass *base_video_parse_class;
GstFlowReturn ret;
GST_DEBUG ("finish_frame");
base_video_parse_class = GST_BASE_VIDEO_PARSE_GET_CLASS (base_video_parse);
buffer = gst_adapter_take_buffer (base_video_parse->output_adapter,
gst_adapter_available (base_video_parse->output_adapter));
if (frame->is_sync_point) {
base_video_parse->timestamp_offset = base_video_parse->last_timestamp -
gst_util_uint64_scale (frame->presentation_frame_number,
base_video_parse->state.fps_d * GST_SECOND,
base_video_parse->state.fps_n);
base_video_parse->distance_from_sync = 0;
}
frame->distance_from_sync = base_video_parse->distance_from_sync;
base_video_parse->distance_from_sync++;
frame->presentation_timestamp =
gst_base_video_parse_get_timestamp (base_video_parse,
frame->presentation_frame_number);
frame->presentation_duration =
gst_base_video_parse_get_timestamp (base_video_parse,
frame->presentation_frame_number + 1) - frame->presentation_timestamp;
frame->decode_timestamp =
gst_base_video_parse_get_timestamp (base_video_parse,
frame->decode_frame_number);
GST_BUFFER_TIMESTAMP (buffer) = frame->presentation_timestamp;
GST_BUFFER_DURATION (buffer) = frame->presentation_duration;
if (frame->decode_frame_number < 0) {
GST_BUFFER_OFFSET (buffer) = 0;
} else {
GST_BUFFER_OFFSET (buffer) = frame->decode_timestamp;
}
GST_BUFFER_OFFSET_END (buffer) = GST_CLOCK_TIME_NONE;
GST_DEBUG ("pts %" GST_TIME_FORMAT,
GST_TIME_ARGS (frame->presentation_timestamp));
GST_DEBUG ("dts %" GST_TIME_FORMAT, GST_TIME_ARGS (frame->decode_timestamp));
GST_DEBUG ("dist %d", frame->distance_from_sync);
if (frame->is_sync_point) {
GST_BUFFER_FLAG_UNSET (buffer, GST_BUFFER_FLAG_DELTA_UNIT);
} else {
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT);
}
frame->src_buffer = buffer;
ret = base_video_parse_class->shape_output (base_video_parse, frame);
gst_base_video_parse_free_frame (base_video_parse->current_frame);
/* create new frame */
base_video_parse->current_frame =
gst_base_video_parse_new_frame (base_video_parse);
return ret;
}
static void
gst_base_video_parse_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);
}
static GstVideoFrame *
gst_base_video_parse_new_frame (GstBaseVideoParse * base_video_parse)
{
GstVideoFrame *frame;
frame = g_malloc0 (sizeof (GstVideoFrame));
frame->system_frame_number = base_video_parse->system_frame_number;
base_video_parse->system_frame_number++;
frame->decode_frame_number = frame->system_frame_number -
base_video_parse->reorder_depth;
return frame;
}
void
gst_base_video_parse_set_sync_point (GstBaseVideoParse * base_video_parse)
{
GST_DEBUG ("set_sync_point");
base_video_parse->current_frame->is_sync_point = TRUE;
base_video_parse->distance_from_sync = 0;
}
GstFlowReturn
gst_base_video_parse_push (GstBaseVideoParse * base_video_parse,
GstBuffer * buffer)
{
GstBaseVideoParseClass *base_video_parse_class;
base_video_parse_class = GST_BASE_VIDEO_PARSE_GET_CLASS (base_video_parse);
if (base_video_parse->caps == NULL) {
gboolean ret;
base_video_parse->caps =
base_video_parse_class->get_caps (base_video_parse);
ret = gst_pad_set_caps (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_parse),
base_video_parse->caps);
if (!ret) {
GST_WARNING ("pad didn't accept caps");
return GST_FLOW_ERROR;
}
}
gst_buffer_set_caps (buffer, base_video_parse->caps);
GST_DEBUG ("pushing ts=%lld dur=%lld off=%lld off_end=%lld",
GST_BUFFER_TIMESTAMP (buffer),
GST_BUFFER_DURATION (buffer),
GST_BUFFER_OFFSET (buffer), GST_BUFFER_OFFSET_END (buffer));
if (base_video_parse->discont) {
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
base_video_parse->discont = FALSE;
} else {
GST_BUFFER_FLAG_UNSET (buffer, GST_BUFFER_FLAG_DISCONT);
}
return gst_pad_push (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_parse), buffer);
}

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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_PARSE_H_
#define _GST_BASE_VIDEO_PARSE_H_
#include <gst/video/gstbasevideocodec.h>
#include <gst/video/gstbasevideoutils.h>
G_BEGIN_DECLS
#define GST_TYPE_BASE_VIDEO_PARSE \
(gst_base_video_parse_get_type())
#define GST_BASE_VIDEO_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASE_VIDEO_PARSE,GstBaseVideoParse))
#define GST_BASE_VIDEO_PARSE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASE_VIDEO_PARSE,GstBaseVideoParseClass))
#define GST_BASE_VIDEO_PARSE_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_BASE_VIDEO_PARSE,GstBaseVideoParseClass))
#define GST_IS_BASE_VIDEO_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASE_VIDEO_PARSE))
#define GST_IS_BASE_VIDEO_PARSE_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASE_VIDEO_PARSE))
/**
* GST_BASE_VIDEO_PARSE_SINK_NAME:
*
* The name of the templates for the sink pad.
*/
#define GST_BASE_VIDEO_PARSE_SINK_NAME "sink"
/**
* GST_BASE_VIDEO_PARSE_SRC_NAME:
*
* The name of the templates for the source pad.
*/
#define GST_BASE_VIDEO_PARSE_SRC_NAME "src"
/**
* GST_BASE_VIDEO_PARSE_FLOW_NEED_DATA:
*
*/
#define GST_BASE_VIDEO_PARSE_FLOW_NEED_DATA GST_FLOW_CUSTOM_SUCCESS
typedef struct _GstBaseVideoParse GstBaseVideoParse;
typedef struct _GstBaseVideoParseClass GstBaseVideoParseClass;
struct _GstBaseVideoParse
{
GstBaseVideoCodec base_video_codec;
/*< private >*/
GstAdapter *input_adapter;
GstAdapter *output_adapter;
int reorder_depth;
gboolean have_sync;
gboolean discont;
gboolean started;
GstVideoFrame *current_frame;
GstVideoState state;
int distance_from_sync;
gboolean sink_clipping;
guint64 presentation_frame_number;
guint64 system_frame_number;
GstCaps *caps;
gboolean set_output_caps;
GstClockTime last_timestamp;
gint64 timestamp_offset;
};
struct _GstBaseVideoParseClass
{
GstBaseVideoCodecClass base_video_codec_class;
gboolean (*start) (GstBaseVideoParse *parse);
gboolean (*stop) (GstBaseVideoParse *parse);
gboolean (*reset) (GstBaseVideoParse *parse);
GstFlowReturn (*parse_data) (GstBaseVideoParse *parse, gboolean at_eos);
int (*scan_for_sync) (GstAdapter *adapter, gboolean at_eos,
int offset, int n);
GstFlowReturn (*shape_output) (GstBaseVideoParse *parse, GstVideoFrame *frame);
GstCaps *(*get_caps) (GstBaseVideoParse *parse);
};
GType gst_base_video_parse_get_type (void);
int gst_base_video_parse_get_width (GstBaseVideoParse *parse);
int gst_base_video_parse_get_height (GstBaseVideoParse *parse);
GstVideoState *gst_base_video_parse_get_state (GstBaseVideoParse *parse);
void gst_base_video_parse_set_state (GstBaseVideoParse *parse,
GstVideoState *state);
guint64 gst_base_video_parse_get_timestamp_offset (GstBaseVideoParse *parse);
gboolean gst_base_video_parse_set_src_caps (GstBaseVideoParse *base_video_parse, GstCaps *caps);
GstFlowReturn gst_base_video_parse_end_of_stream (GstBaseVideoParse *base_video_parse,
GstBuffer *buffer);
void gst_base_video_parse_lost_sync (GstBaseVideoParse *base_video_parse);
GstVideoFrame * gst_base_video_parse_get_frame (GstBaseVideoParse *base_video_parse);
void gst_base_video_parse_add_to_frame (GstBaseVideoParse *base_video_parse, int n_bytes);
GstFlowReturn gst_base_video_parse_finish_frame (GstBaseVideoParse *base_video_parse);
void gst_base_video_parse_set_sync_point (GstBaseVideoParse *base_video_parse);
GstFlowReturn gst_base_video_parse_push (GstBaseVideoParse *base_video_parse,
GstBuffer *buffer);
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 (basevideo_debug);
#define GST_CAT_DEFAULT basevideo_debug
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;
}
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;
}
gboolean
gst_base_video_state_from_caps (GstVideoState * state, GstCaps * caps)
{
gst_video_format_parse_caps (caps, &state->format,
&state->width, &state->height);
gst_video_parse_caps_framerate (caps, &state->fps_n, &state->fps_d);
state->par_n = 1;
state->par_d = 1;
gst_video_parse_caps_pixel_aspect_ratio (caps, &state->par_n, &state->par_d);
{
GstStructure *structure = gst_caps_get_structure (caps, 0);
state->interlaced = FALSE;
gst_structure_get_boolean (structure, "interlaced", &state->interlaced);
}
state->clean_width = state->width;
state->clean_height = state->height;
state->clean_offset_left = 0;
state->clean_offset_top = 0;
/* FIXME need better error handling */
return TRUE;
}
GstClockTime
gst_video_state_get_timestamp (const GstVideoState * state, int frame_number)
{
if (frame_number < 0) {
return state->segment.start -
(gint64) gst_util_uint64_scale (-frame_number,
state->fps_d * GST_SECOND, state->fps_n);
} else {
return state->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_
#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 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;
};
struct _GstVideoFrame
{
guint64 decode_timestamp;
guint64 presentation_timestamp;
guint64 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);
gboolean gst_base_video_state_from_caps (GstVideoState *state,
GstCaps *caps);
GstClockTime gst_video_state_get_timestamp (const GstVideoState *state,
int frame_number);
G_END_DECLS
#endif