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gstreamer/gst/qtdemux/qtdemux.c
Leif Johnson 7b0389b09c + the last of the float caps changes ... these are a bit more pervasive 
Original commit message from CVS:
+ the last of the float caps changes ... these are a bit more pervasive
2003-07-19 23:47:41 +00:00

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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2003> David A. Schleef <ds@schleef.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "qtdemux.h"
#include <string.h>
#include <zlib.h>
#define QTDEMUX_GUINT32_GET(a) GUINT32_FROM_BE(*(guint32 *)(a))
#define QTDEMUX_GUINT16_GET(a) GUINT16_FROM_BE(*(guint16 *)(a))
#define QTDEMUX_GUINT8_GET(a) (*(guint8 *)(a))
#define QTDEMUX_FP32_GET(a) (GUINT32_FROM_BE(*(guint16 *)(a))/65536.0)
#define QTDEMUX_FP16_GET(a) (GUINT16_FROM_BE(*(guint16 *)(a))/256.0)
#define QTDEMUX_FOURCC_GET(a) GUINT32_FROM_LE(*(guint32 *)(a))
#define QTDEMUX_GUINT64_GET(a) ((((guint64)QTDEMUX_GUINT32_GET(a))<<32)|QTDEMUX_GUINT32_GET(((void *)a)+4))
typedef struct _QtNode QtNode;
typedef struct _QtNodeType QtNodeType;
typedef struct _QtDemuxSample QtDemuxSample;
//typedef struct _QtDemuxStream QtDemuxStream;
struct _QtNode {
guint32 type;
gpointer data;
int len;
};
struct _QtNodeType {
guint32 fourcc;
char *name;
int flags;
void (*dump)(GstQTDemux *qtdemux, void *buffer, int depth);
};
struct _QtDemuxSample {
int sample_index;
int chunk;
int size;
guint32 offset;
guint64 timestamp;
guint64 duration;
};
struct _QtDemuxStream {
guint32 subtype;
GstCaps *caps;
GstPad *pad;
int n_samples;
QtDemuxSample *samples;
int timescale;
int sample_index;
int width;
int height;
float fps;
double rate;
int n_channels;
};
enum QtDemuxState {
QTDEMUX_STATE_NULL,
QTDEMUX_STATE_HEADER,
QTDEMUX_STATE_HEADER_SEEKING,
QTDEMUX_STATE_SEEKING,
QTDEMUX_STATE_MOVIE,
QTDEMUX_STATE_SEEKING_EOS,
QTDEMUX_STATE_EOS,
};
static GNode *qtdemux_tree_get_child_by_type(GNode *node, guint32 fourcc);
static GNode *qtdemux_tree_get_sibling_by_type(GNode *node, guint32 fourcc);
static GstElementDetails
gst_qtdemux_details =
{
"QuickTime Demuxer",
"Codec/Demuxer",
"LGPL",
"Demultiplex a QuickTime file into audio and video streams",
VERSION,
"David Schleef <ds@schleef.org>",
"(C) 2003",
};
static GstCaps* quicktime_type_find (GstBuffer *buf, gpointer private);
static GstTypeDefinition quicktimedefinition = {
"qtdemux_video/quicktime",
"video/quicktime",
".mov",
quicktime_type_find,
};
enum {
LAST_SIGNAL
};
enum {
ARG_0
};
GST_PAD_TEMPLATE_FACTORY (sink_templ,
"sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_CAPS_NEW (
"qtdemux_sink",
"video/quicktime",
NULL
)
)
static GstPadTemplate *videosrctempl, *audiosrctempl;
static GstElementClass *parent_class = NULL;
static void gst_qtdemux_class_init (GstQTDemuxClass *klass);
static void gst_qtdemux_init (GstQTDemux *quicktime_demux);
static GstElementStateReturn gst_qtdemux_change_state(GstElement *element);
static void gst_qtdemux_loop_header (GstElement *element);
static gboolean gst_qtdemux_handle_sink_event (GstQTDemux *qtdemux);
static void qtdemux_parse_moov(GstQTDemux *qtdemux, void *buffer, int length);
static void qtdemux_parse(GstQTDemux *qtdemux, GNode *node, void *buffer, int length);
static QtNodeType *qtdemux_type_get(guint32 fourcc);
static void qtdemux_node_dump(GstQTDemux *qtdemux, GNode *node);
static void qtdemux_parse_tree(GstQTDemux *qtdemux);
static GstCaps *qtdemux_video_caps(GstQTDemux *qtdemux, guint32 fourcc);
static GstCaps *qtdemux_audio_caps(GstQTDemux *qtdemux, guint32 fourcc);
static GType gst_qtdemux_get_type (void)
{
static GType qtdemux_type = 0;
if (!qtdemux_type) {
static const GTypeInfo qtdemux_info = {
sizeof(GstQTDemuxClass), NULL, NULL,
(GClassInitFunc)gst_qtdemux_class_init,
NULL, NULL, sizeof(GstQTDemux), 0,
(GInstanceInitFunc)gst_qtdemux_init,
};
qtdemux_type = g_type_register_static (GST_TYPE_ELEMENT, "GstQTDemux", &qtdemux_info, 0);
}
return qtdemux_type;
}
static void gst_qtdemux_class_init (GstQTDemuxClass *klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass*)klass;
gstelement_class = (GstElementClass*)klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
gstelement_class->change_state = gst_qtdemux_change_state;
}
static void
gst_qtdemux_init (GstQTDemux *qtdemux)
{
qtdemux->sinkpad = gst_pad_new_from_template (GST_PAD_TEMPLATE_GET (sink_templ), "sink");
gst_element_set_loop_function (GST_ELEMENT (qtdemux), gst_qtdemux_loop_header);
gst_element_add_pad (GST_ELEMENT (qtdemux), qtdemux->sinkpad);
}
static GstCaps*
quicktime_type_find (GstBuffer *buf, gpointer private)
{
gchar *data = GST_BUFFER_DATA (buf);
g_return_val_if_fail (data != NULL, NULL);
if(GST_BUFFER_SIZE(buf) < 8){
return NULL;
}
if (strncmp (&data[4], "wide", 4)==0 ||
strncmp (&data[4], "moov", 4)==0 ||
strncmp (&data[4], "mdat", 4)==0 ||
strncmp (&data[4], "free", 4)==0) {
return gst_caps_new ("quicktime_type_find",
"video/quicktime",
NULL);
}
return NULL;
}
static gboolean
plugin_init (GModule *module, GstPlugin *plugin)
{
GstElementFactory *factory;
GstTypeFactory *type;
GstCaps *audiocaps = NULL, *videocaps = NULL, *temp;
const guint32 audio_fcc[] = {
/* FILLME */
0,
}, video_fcc[] = {
/* FILLME */
0,
};
gint i;
if (!gst_library_load ("gstbytestream"))
return FALSE;
factory = gst_element_factory_new ("qtdemux", GST_TYPE_QTDEMUX,
&gst_qtdemux_details);
g_return_val_if_fail(factory != NULL, FALSE);
gst_element_factory_set_rank (factory, GST_ELEMENT_RANK_PRIMARY);
for (i = 0; audio_fcc[i] != 0; i++) {
temp = qtdemux_audio_caps (NULL, audio_fcc[i]);
audiocaps = gst_caps_append (audiocaps, temp);
}
audiosrctempl = gst_pad_template_new ("audio_%02d",
GST_PAD_SRC,
GST_PAD_SOMETIMES,
audiocaps, NULL);
for (i = 0; video_fcc[i] != 0; i++) {
temp = qtdemux_video_caps (NULL, video_fcc[i]);
videocaps = gst_caps_append (videocaps, temp);
}
videosrctempl = gst_pad_template_new ("video_%02d",
GST_PAD_SRC,
GST_PAD_SOMETIMES,
videocaps, NULL);
gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (sink_templ));
gst_element_factory_add_pad_template (factory, videosrctempl);
gst_element_factory_add_pad_template (factory, audiosrctempl);
type = gst_type_factory_new (&quicktimedefinition);
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (type));
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
return TRUE;
}
GstPluginDesc plugin_desc = {
GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"qtdemux",
plugin_init
};
static gboolean gst_qtdemux_handle_sink_event (GstQTDemux *qtdemux)
{
guint32 remaining;
GstEvent *event;
GstEventType type;
gst_bytestream_get_status(qtdemux->bs, &remaining, &event);
type = event ? GST_EVENT_TYPE(event) : GST_EVENT_UNKNOWN;
GST_DEBUG ("qtdemux: event %p %d", event, type);
switch(type){
case GST_EVENT_EOS:
gst_bytestream_flush(qtdemux->bs, remaining);
gst_pad_event_default(qtdemux->sinkpad, event);
return FALSE;
case GST_EVENT_FLUSH:
g_warning("flush event");
break;
case GST_EVENT_DISCONTINUOUS:
GST_DEBUG ("discontinuous event\n");
//gst_bytestream_flush_fast(qtdemux->bs, remaining);
break;
default:
g_warning("unhandled event %d",type);
break;
}
gst_event_unref(event);
return TRUE;
}
static GstElementStateReturn gst_qtdemux_change_state(GstElement *element)
{
GstQTDemux *qtdemux = GST_QTDEMUX(element);
switch(GST_STATE_TRANSITION(element)){
case GST_STATE_NULL_TO_READY:
break;
case GST_STATE_READY_TO_PAUSED:
qtdemux->bs = gst_bytestream_new(qtdemux->sinkpad);
qtdemux->state = QTDEMUX_STATE_HEADER;
/* FIXME */
break;
case GST_STATE_PAUSED_TO_PLAYING:
break;
case GST_STATE_PLAYING_TO_PAUSED:
break;
case GST_STATE_PAUSED_TO_READY:
gst_bytestream_destroy(qtdemux->bs);
break;
case GST_STATE_READY_TO_NULL:
break;
default:
break;
}
return GST_ELEMENT_CLASS(parent_class)->change_state(element);
}
static void gst_qtdemux_loop_header (GstElement *element)
{
GstQTDemux *qtdemux = GST_QTDEMUX(element);
guint8 *data;
guint32 length;
guint32 fourcc;
GstBuffer *buf;
int offset;
int cur_offset;
int size;
int ret;
/* FIXME _tell gets the offset wrong */
//cur_offset = gst_bytestream_tell(qtdemux->bs);
cur_offset = qtdemux->offset;
GST_DEBUG ("loop at position %d",cur_offset);
switch(qtdemux->state){
case QTDEMUX_STATE_HEADER:
{
do{
ret = gst_bytestream_peek_bytes(qtdemux->bs, &data, 16);
if(ret<16){
if(!gst_qtdemux_handle_sink_event(qtdemux)){
return;
}
}else{
break;
}
}while(1);
length = GUINT32_FROM_BE(*(guint32 *)data);
GST_DEBUG ("length %08x",length);
fourcc = GUINT32_FROM_LE(*(guint32 *)(data+4));
GST_DEBUG ("fourcc " GST_FOURCC_FORMAT, GST_FOURCC_ARGS(fourcc));
if(length==0){
length = gst_bytestream_length(qtdemux->bs) - cur_offset;
}
if(length==1){
guint32 length1, length2;
length1 = GUINT32_FROM_BE(*(guint32 *)(data+8));
GST_DEBUG ("length1 %08x",length1);
length2 = GUINT32_FROM_BE(*(guint32 *)(data+12));
GST_DEBUG ("length2 %08x",length2);
length=length2;
}
switch(fourcc){
case GST_MAKE_FOURCC('m','d','a','t'):
case GST_MAKE_FOURCC('f','r','e','e'):
case GST_MAKE_FOURCC('w','i','d','e'):
break;
case GST_MAKE_FOURCC('m','o','o','v'):
{
GstBuffer *moov;
do{
ret = gst_bytestream_read(qtdemux->bs, &moov, length);
if(ret < length){
GST_DEBUG ("read failed (%d < %d)",ret,length);
if(!gst_qtdemux_handle_sink_event(qtdemux)){
return;
}
}else{
break;
}
}while(1);
qtdemux_parse_moov(qtdemux, GST_BUFFER_DATA(moov), length);
if(0)qtdemux_node_dump(qtdemux, qtdemux->moov_node);
qtdemux_parse_tree(qtdemux);
qtdemux->state = QTDEMUX_STATE_MOVIE;
break;
}
default:
{
g_print("unknown %08x '" GST_FOURCC_FORMAT "' at %d\n",
fourcc, GST_FOURCC_ARGS(fourcc), cur_offset);
break;
}
}
ret = gst_bytestream_seek(qtdemux->bs, cur_offset + length,
GST_SEEK_METHOD_SET);
qtdemux->offset = cur_offset + length;
GST_DEBUG ("seek returned %d\n",ret);
break;
}
case QTDEMUX_STATE_SEEKING_EOS:
{
guint8 *data;
do{
ret = gst_bytestream_peek_bytes(qtdemux->bs, &data, 1);
if(ret<1){
if(!gst_qtdemux_handle_sink_event(qtdemux)){
return;
}
}else{
break;
}
}while(TRUE);
gst_element_set_eos(element);
qtdemux->state = QTDEMUX_STATE_EOS;
return;
}
case QTDEMUX_STATE_EOS:
g_warning("spinning in EOS\n");
return;
case QTDEMUX_STATE_MOVIE:
{
QtDemuxStream *stream;
guint64 min_time;
int index = -1;
int i;
min_time = G_MAXUINT64;
for(i=0;i<qtdemux->n_streams;i++){
stream = qtdemux->streams[i];
if(stream->sample_index < stream->n_samples &&
stream->samples[stream->sample_index].timestamp < min_time){
min_time = stream->samples[stream->sample_index].timestamp;
index = i;
}
}
if(index==-1){
for(i=0;i<qtdemux->n_streams;i++){
gst_pad_push(qtdemux->streams[i]->pad,
GST_BUFFER(gst_event_new (GST_EVENT_EOS)));
}
ret = gst_bytestream_seek(qtdemux->bs, 0, GST_SEEK_METHOD_END);
GST_DEBUG ("seek returned %d",ret);
qtdemux->state = QTDEMUX_STATE_SEEKING_EOS;
return;
}
stream = qtdemux->streams[index];
offset = stream->samples[stream->sample_index].offset;
size = stream->samples[stream->sample_index].size;
GST_DEBUG ("pushing from stream %d, sample_index=%d offset=%d size=%d",
index, stream->sample_index, offset, size);
cur_offset = gst_bytestream_tell(qtdemux->bs);
if(offset != cur_offset){
GST_DEBUG ("seeking to offset %d",offset);
ret = gst_bytestream_seek(qtdemux->bs, offset, GST_SEEK_METHOD_SET);
GST_DEBUG ("seek returned %d",ret);
return;
}
GST_DEBUG ("reading %d bytes\n",size);
buf = NULL;
do{
ret = gst_bytestream_read(qtdemux->bs, &buf, size);
if(ret < size){
GST_DEBUG ("read failed (%d < %d)",ret,size);
if(!gst_qtdemux_handle_sink_event(qtdemux)){
return;
}
}else{
break;
}
}while(TRUE);
if(buf){
/* hum... */
if(stream->subtype == GST_MAKE_FOURCC('v','i','d','e')){
float fps = 1. * GST_SECOND / stream->samples[stream->sample_index].duration;
if (fps != stream->fps) {
gst_props_remove_entry_by_name(stream->caps->properties, "framerate");
gst_props_add_entry(stream->caps->properties,
gst_props_entry_new("framerate", GST_PROPS_FLOAT(fps)));
stream->fps = fps;
gst_pad_try_set_caps(stream->pad, stream->caps);
}
}
GST_BUFFER_TIMESTAMP(buf) = stream->samples[stream->sample_index].timestamp;
GST_BUFFER_DURATION(buf) = stream->samples[stream->sample_index].duration;
gst_pad_push(stream->pad, buf);
}
stream->sample_index++;
break;
}
default:
/* unreached */
g_assert(0);
}
}
static GstCaps *gst_qtdemux_src_getcaps(GstPad *pad, GstCaps *caps)
{
GstQTDemux *qtdemux;
QtDemuxStream *stream;
int i;
GST_DEBUG ("gst_qtdemux_src_getcaps");
qtdemux = GST_QTDEMUX(gst_pad_get_parent(pad));
g_return_val_if_fail(GST_IS_QTDEMUX(qtdemux), NULL);
GST_DEBUG ("looking for pad %p in qtdemux %p", pad, qtdemux);
GST_DEBUG ("n_streams is %d", qtdemux->n_streams);
for(i=0;i<qtdemux->n_streams;i++){
stream = qtdemux->streams[i];
if(stream->pad == pad){
return stream->caps;
}
}
GST_DEBUG ("Couldn't find stream cooresponding to pad\n");
return NULL;
}
static GstPadLinkReturn
gst_qtdemux_src_link(GstPad *pad, GstCaps *caps)
{
GstQTDemux *qtdemux;
QtDemuxStream *stream;
int i;
GST_DEBUG ("gst_qtdemux_src_link");
qtdemux = GST_QTDEMUX(gst_pad_get_parent(pad));
GST_DEBUG ("looking for pad %p in qtdemux %p", pad, qtdemux);
g_return_val_if_fail(GST_IS_QTDEMUX(qtdemux), GST_PAD_LINK_REFUSED);
GST_DEBUG ("n_streams is %d", qtdemux->n_streams);
for(i=0;i<qtdemux->n_streams;i++){
stream = qtdemux->streams[i];
GST_DEBUG ("pad[%d] is %p", i, stream->pad);
if(stream->pad == pad){
return GST_PAD_LINK_OK;
}
}
GST_DEBUG ("Couldn't find stream cooresponding to pad\n");
return GST_PAD_LINK_REFUSED;
}
void gst_qtdemux_add_stream(GstQTDemux *qtdemux, QtDemuxStream *stream)
{
if(stream->subtype == GST_MAKE_FOURCC('v','i','d','e')){
stream->pad = gst_pad_new_from_template (videosrctempl,
g_strdup_printf ("video_%02d", qtdemux->n_video_streams));
stream->fps = 1. * GST_SECOND / stream->samples[0].duration;
if(stream->caps){
GstProps *properties = gst_props_intersect(
stream->caps->properties,
gst_props_new("width",GST_PROPS_INT(stream->width),
"height",GST_PROPS_INT(stream->height),
"framerate", GST_PROPS_FLOAT(stream->fps), NULL));
if (stream->caps->properties != NULL)
gst_props_unref (stream->caps->properties);
stream->caps->properties = properties;
}
qtdemux->n_video_streams++;
}else{
stream->pad = gst_pad_new_from_template (audiosrctempl,
g_strdup_printf ("audio_%02d", qtdemux->n_audio_streams));
if(stream->caps){
GstProps *properties = gst_props_intersect(
stream->caps->properties,
gst_props_new("rate",GST_PROPS_INT((int)stream->rate),
"channels",GST_PROPS_INT(stream->n_channels), NULL));
if (stream->caps->properties != NULL)
gst_props_unref (stream->caps->properties);
stream->caps->properties = properties;
}
qtdemux->n_audio_streams++;
}
gst_pad_set_getcaps_function(stream->pad, gst_qtdemux_src_getcaps);
gst_pad_set_link_function(stream->pad, gst_qtdemux_src_link);
qtdemux->streams[qtdemux->n_streams] = stream;
qtdemux->n_streams++;
GST_DEBUG ("n_streams is now %d", qtdemux->n_streams);
GST_DEBUG ("adding pad %p to qtdemux %p", stream->pad, qtdemux);
gst_element_add_pad(GST_ELEMENT (qtdemux), stream->pad);
/* Note: we need to have everything set up before calling try_set_caps */
if(stream->caps){
g_print("setting caps to %s\n",gst_caps_to_string(stream->caps));
gst_pad_try_set_caps(stream->pad, stream->caps);
}
}
#define QT_CONTAINER 1
#define FOURCC_moov GST_MAKE_FOURCC('m','o','o','v')
#define FOURCC_mvhd GST_MAKE_FOURCC('m','v','h','d')
#define FOURCC_clip GST_MAKE_FOURCC('c','l','i','p')
#define FOURCC_trak GST_MAKE_FOURCC('t','r','a','k')
#define FOURCC_udta GST_MAKE_FOURCC('u','d','t','a')
#define FOURCC_ctab GST_MAKE_FOURCC('c','t','a','b')
#define FOURCC_tkhd GST_MAKE_FOURCC('t','k','h','d')
#define FOURCC_crgn GST_MAKE_FOURCC('c','r','g','n')
#define FOURCC_matt GST_MAKE_FOURCC('m','a','t','t')
#define FOURCC_kmat GST_MAKE_FOURCC('k','m','a','t')
#define FOURCC_edts GST_MAKE_FOURCC('e','d','t','s')
#define FOURCC_elst GST_MAKE_FOURCC('e','l','s','t')
#define FOURCC_load GST_MAKE_FOURCC('l','o','a','d')
#define FOURCC_tref GST_MAKE_FOURCC('t','r','e','f')
#define FOURCC_imap GST_MAKE_FOURCC('i','m','a','p')
#define FOURCC___in GST_MAKE_FOURCC(' ',' ','i','n')
#define FOURCC___ty GST_MAKE_FOURCC(' ',' ','t','y')
#define FOURCC_mdia GST_MAKE_FOURCC('m','d','i','a')
#define FOURCC_mdhd GST_MAKE_FOURCC('m','d','h','d')
#define FOURCC_hdlr GST_MAKE_FOURCC('h','d','l','r')
#define FOURCC_minf GST_MAKE_FOURCC('m','i','n','f')
#define FOURCC_vmhd GST_MAKE_FOURCC('v','m','h','d')
#define FOURCC_smhd GST_MAKE_FOURCC('s','m','h','d')
#define FOURCC_gmhd GST_MAKE_FOURCC('g','m','h','d')
#define FOURCC_gmin GST_MAKE_FOURCC('g','m','i','n')
#define FOURCC_dinf GST_MAKE_FOURCC('d','i','n','f')
#define FOURCC_dref GST_MAKE_FOURCC('d','r','e','f')
#define FOURCC_stbl GST_MAKE_FOURCC('s','t','b','l')
#define FOURCC_stsd GST_MAKE_FOURCC('s','t','s','d')
#define FOURCC_stts GST_MAKE_FOURCC('s','t','t','s')
#define FOURCC_stss GST_MAKE_FOURCC('s','t','s','s')
#define FOURCC_stsc GST_MAKE_FOURCC('s','t','s','c')
#define FOURCC_stsz GST_MAKE_FOURCC('s','t','s','z')
#define FOURCC_stco GST_MAKE_FOURCC('s','t','c','o')
#define FOURCC_vide GST_MAKE_FOURCC('v','i','d','e')
#define FOURCC_soun GST_MAKE_FOURCC('s','o','u','n')
#define FOURCC_co64 GST_MAKE_FOURCC('c','o','6','4')
#define FOURCC_cmov GST_MAKE_FOURCC('c','m','o','v')
#define FOURCC_dcom GST_MAKE_FOURCC('d','c','o','m')
#define FOURCC_cmvd GST_MAKE_FOURCC('c','m','v','d')
static void qtdemux_dump_mvhd(GstQTDemux *qtdemux, void *buffer, int depth);
static void qtdemux_dump_tkhd(GstQTDemux *qtdemux, void *buffer, int depth);
static void qtdemux_dump_elst(GstQTDemux *qtdemux, void *buffer, int depth);
static void qtdemux_dump_mdhd(GstQTDemux *qtdemux, void *buffer, int depth);
static void qtdemux_dump_hdlr(GstQTDemux *qtdemux, void *buffer, int depth);
static void qtdemux_dump_vmhd(GstQTDemux *qtdemux, void *buffer, int depth);
static void qtdemux_dump_dref(GstQTDemux *qtdemux, void *buffer, int depth);
static void qtdemux_dump_stsd(GstQTDemux *qtdemux, void *buffer, int depth);
static void qtdemux_dump_stts(GstQTDemux *qtdemux, void *buffer, int depth);
static void qtdemux_dump_stss(GstQTDemux *qtdemux, void *buffer, int depth);
static void qtdemux_dump_stsc(GstQTDemux *qtdemux, void *buffer, int depth);
static void qtdemux_dump_stsz(GstQTDemux *qtdemux, void *buffer, int depth);
static void qtdemux_dump_stco(GstQTDemux *qtdemux, void *buffer, int depth);
static void qtdemux_dump_co64(GstQTDemux *qtdemux, void *buffer, int depth);
static void qtdemux_dump_dcom(GstQTDemux *qtdemux, void *buffer, int depth);
static void qtdemux_dump_cmvd(GstQTDemux *qtdemux, void *buffer, int depth);
QtNodeType qt_node_types[] = {
{ FOURCC_moov, "movie", QT_CONTAINER, },
{ FOURCC_mvhd, "movie header", 0,
qtdemux_dump_mvhd },
{ FOURCC_clip, "clipping", QT_CONTAINER, },
{ FOURCC_trak, "track", QT_CONTAINER, },
{ FOURCC_udta, "user data", 0, }, /* special container */
{ FOURCC_ctab, "color table", 0, },
{ FOURCC_tkhd, "track header", 0,
qtdemux_dump_tkhd },
{ FOURCC_crgn, "clipping region", 0, },
{ FOURCC_matt, "track matte", QT_CONTAINER, },
{ FOURCC_kmat, "compressed matte", 0, },
{ FOURCC_edts, "edit", QT_CONTAINER, },
{ FOURCC_elst, "edit list", 0,
qtdemux_dump_elst },
{ FOURCC_load, "track load settings", 0, },
{ FOURCC_tref, "track reference", QT_CONTAINER, },
{ FOURCC_imap, "track input map", QT_CONTAINER, },
{ FOURCC___in, "track input", 0, }, /* special container */
{ FOURCC___ty, "input type", 0, },
{ FOURCC_mdia, "media", QT_CONTAINER },
{ FOURCC_mdhd, "media header", 0,
qtdemux_dump_mdhd },
{ FOURCC_hdlr, "handler reference", 0,
qtdemux_dump_hdlr },
{ FOURCC_minf, "media information", QT_CONTAINER },
{ FOURCC_vmhd, "video media information", 0,
qtdemux_dump_vmhd },
{ FOURCC_smhd, "sound media information", 0 },
{ FOURCC_gmhd, "base media information header", 0 },
{ FOURCC_gmin, "base media info", 0 },
{ FOURCC_dinf, "data information", QT_CONTAINER },
{ FOURCC_dref, "data reference", 0,
qtdemux_dump_dref },
{ FOURCC_stbl, "sample table", QT_CONTAINER },
{ FOURCC_stsd, "sample description", 0,
qtdemux_dump_stsd },
{ FOURCC_stts, "time-to-sample", 0,
qtdemux_dump_stts },
{ FOURCC_stss, "sync sample", 0,
qtdemux_dump_stss },
{ FOURCC_stsc, "sample-to-chunk", 0,
qtdemux_dump_stsc },
{ FOURCC_stsz, "sample size", 0,
qtdemux_dump_stsz },
{ FOURCC_stco, "chunk offset", 0,
qtdemux_dump_stco },
{ FOURCC_co64, "64-bit chunk offset", 0,
qtdemux_dump_co64 },
{ FOURCC_vide, "video media", 0 },
{ FOURCC_cmov, "compressed movie", QT_CONTAINER },
{ FOURCC_dcom, "compressed data", 0,
qtdemux_dump_dcom },
{ FOURCC_cmvd, "compressed movie data", 0,
qtdemux_dump_cmvd },
{ 0, "unknown", 0 },
};
static int n_qt_node_types = sizeof(qt_node_types)/sizeof(qt_node_types[0]);
static void *qtdemux_zalloc(void *opaque, unsigned int items, unsigned int size)
{
return g_malloc(items*size);
}
static void qtdemux_zfree(void *opaque, void *addr)
{
g_free(addr);
}
static void *qtdemux_inflate(void *z_buffer, int z_length, int length)
{
void *buffer;
z_stream *z;
int ret;
z = g_new0(z_stream, 1);
z->zalloc = qtdemux_zalloc;
z->zfree = qtdemux_zfree;
z->opaque = NULL;
z->next_in = z_buffer;
z->avail_in = z_length;
buffer = g_malloc(length);
ret = inflateInit(z);
while(z->avail_in > 0){
if(z->avail_out == 0){
length += 1024;
buffer = realloc(buffer, length);
z->next_out = buffer + z->total_out;
z->avail_out = 1024;
}
ret = inflate(z,Z_SYNC_FLUSH);
if(ret != Z_OK)break;
}
if(ret != Z_STREAM_END){
g_warning("inflate() returned %d\n",ret);
}
g_free(z);
return buffer;
}
static void qtdemux_parse_moov(GstQTDemux *qtdemux, void *buffer, int length)
{
GNode *cmov;
qtdemux->moov_node = g_node_new(buffer);
qtdemux_parse(qtdemux, qtdemux->moov_node, buffer, length);
cmov = qtdemux_tree_get_child_by_type(qtdemux->moov_node, FOURCC_cmov);
if(cmov){
GNode *dcom;
GNode *cmvd;
dcom = qtdemux_tree_get_child_by_type(cmov, FOURCC_dcom);
cmvd = qtdemux_tree_get_child_by_type(cmov, FOURCC_cmvd);
if(QTDEMUX_FOURCC_GET(dcom->data+8) == GST_MAKE_FOURCC('z','l','i','b')){
int uncompressed_length;
int compressed_length;
void *buf;
uncompressed_length = QTDEMUX_GUINT32_GET(cmvd->data+8);
compressed_length = QTDEMUX_GUINT32_GET(cmvd->data+4) - 12;
g_print("length = %d\n",uncompressed_length);
buf = qtdemux_inflate(cmvd->data + 12, compressed_length,
uncompressed_length);
qtdemux->moov_node_compressed = qtdemux->moov_node;
qtdemux->moov_node = g_node_new(buf);
qtdemux_parse(qtdemux, qtdemux->moov_node, buf, uncompressed_length);
}else{
g_print("unknown header compression type\n");
}
}
}
static void qtdemux_parse(GstQTDemux *qtdemux, GNode *node, void *buffer, int length)
{
guint32 fourcc;
guint32 node_length;
QtNodeType *type;
void *end;
//g_print("qtdemux_parse %p %d\n",buffer, length);
node_length = QTDEMUX_GUINT32_GET(buffer);
fourcc = QTDEMUX_FOURCC_GET(buffer+4);
type = qtdemux_type_get(fourcc);
//g_print("parsing '" GST_FOURCC_FORMAT "', length=%d\n",
//GST_FOURCC_ARGS(fourcc), node_length);
if(type->flags & QT_CONTAINER){
void *buf;
guint32 len;
buf = buffer + 8;
end = buffer + length;
while(buf < end){
GNode *child;
if(buf + 8 >= end){
/* FIXME: get annoyed */
g_print("buffer overrun\n");
}
len = QTDEMUX_GUINT32_GET(buf);
child = g_node_new(buf);
g_node_append(node, child);
qtdemux_parse(qtdemux, child, buf, len);
buf += len;
}
}else{
#if 0
if(fourcc == FOURCC_cmvd){
int uncompressed_length;
void *buf;
uncompressed_length = QTDEMUX_GUINT32_GET(buffer+8);
g_print("length = %d\n",uncompressed_length);
buf = qtdemux_inflate(buffer + 12, node_length-12, uncompressed_length);
end = buf + uncompressed_length;
while(buf < end){
GNode *child;
guint32 len;
if(buf + 8 >= end){
/* FIXME: get annoyed */
g_print("buffer overrun\n");
}
len = QTDEMUX_GUINT32_GET(buf);
child = g_node_new(buf);
g_node_append(node, child);
qtdemux_parse(qtdemux, child, buf, len);
buf += len;
}
}
#endif
}
}
static QtNodeType *qtdemux_type_get(guint32 fourcc)
{
int i;
for(i=0;i<n_qt_node_types;i++){
if(qt_node_types[i].fourcc == fourcc)
return qt_node_types+i;
}
return qt_node_types+n_qt_node_types-1;
}
static gboolean qtdemux_node_dump_foreach(GNode *node, gpointer data)
{
void *buffer = node->data;
guint32 node_length;
guint32 fourcc;
QtNodeType *type;
int depth;
node_length = GUINT32_FROM_BE(*(guint32 *)buffer);
fourcc = GUINT32_FROM_LE(*(guint32 *)(buffer+4));
type = qtdemux_type_get(fourcc);
depth = (g_node_depth(node)-1)*2;
g_print("%*s'" GST_FOURCC_FORMAT "', [%d], %s\n",
depth, "",
GST_FOURCC_ARGS(fourcc),
node_length,
type->name);
if(type->dump)type->dump(data, buffer, depth);
return FALSE;
}
static void qtdemux_node_dump(GstQTDemux *qtdemux, GNode *node)
{
g_node_traverse(qtdemux->moov_node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
qtdemux_node_dump_foreach, qtdemux);
}
static void qtdemux_dump_mvhd(GstQTDemux *qtdemux, void *buffer, int depth)
{
g_print("%*s version/flags: %08x\n", depth, "", QTDEMUX_GUINT32_GET(buffer+8));
g_print("%*s creation time: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+12));
g_print("%*s modify time: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+16));
g_print("%*s time scale: 1/%u sec\n", depth, "", QTDEMUX_GUINT32_GET(buffer+20));
g_print("%*s duration: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+24));
g_print("%*s pref. rate: %g\n", depth, "", QTDEMUX_FP32_GET(buffer+28));
g_print("%*s pref. volume: %g\n", depth, "", QTDEMUX_FP16_GET(buffer+32));
g_print("%*s preview time: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+80));
g_print("%*s preview dur.: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+84));
g_print("%*s poster time: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+88));
g_print("%*s select time: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+92));
g_print("%*s select dur.: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+96));
g_print("%*s current time: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+100));
g_print("%*s next track ID: %d\n", depth, "", QTDEMUX_GUINT32_GET(buffer+104));
}
static void qtdemux_dump_tkhd(GstQTDemux *qtdemux, void *buffer, int depth)
{
g_print("%*s version/flags: %08x\n", depth, "", QTDEMUX_GUINT32_GET(buffer+8));
g_print("%*s creation time: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+12));
g_print("%*s modify time: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+16));
g_print("%*s track ID: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+20));
g_print("%*s duration: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+28));
g_print("%*s layer: %u\n", depth, "", QTDEMUX_GUINT16_GET(buffer+36));
g_print("%*s alt group: %u\n", depth, "", QTDEMUX_GUINT16_GET(buffer+38));
g_print("%*s volume: %g\n", depth, "", QTDEMUX_FP16_GET(buffer+44));
g_print("%*s track width: %g\n", depth, "", QTDEMUX_FP32_GET(buffer+84));
g_print("%*s track height: %g\n", depth, "", QTDEMUX_FP32_GET(buffer+88));
}
static void qtdemux_dump_elst(GstQTDemux *qtdemux, void *buffer, int depth)
{
int i;
int n;
g_print("%*s version/flags: %08x\n", depth, "", QTDEMUX_GUINT32_GET(buffer+8));
g_print("%*s n entries: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+12));
n = QTDEMUX_GUINT32_GET(buffer+12);
for(i=0;i<n;i++){
g_print("%*s track dur: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+16+i*12));
g_print("%*s media time: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+20+i*12));
g_print("%*s media rate: %g\n", depth, "", QTDEMUX_FP32_GET(buffer+24+i*12));
}
}
static void qtdemux_dump_mdhd(GstQTDemux *qtdemux, void *buffer, int depth)
{
g_print("%*s version/flags: %08x\n", depth, "", QTDEMUX_GUINT32_GET(buffer+8));
g_print("%*s creation time: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+12));
g_print("%*s modify time: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+16));
g_print("%*s time scale: 1/%u sec\n", depth, "", QTDEMUX_GUINT32_GET(buffer+20));
g_print("%*s duration: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+24));
g_print("%*s language: %u\n", depth, "", QTDEMUX_GUINT16_GET(buffer+28));
g_print("%*s quality: %u\n", depth, "", QTDEMUX_GUINT16_GET(buffer+30));
}
static void qtdemux_dump_hdlr(GstQTDemux *qtdemux, void *buffer, int depth)
{
g_print("%*s version/flags: %08x\n", depth, "", QTDEMUX_GUINT32_GET(buffer+8));
g_print("%*s type: " GST_FOURCC_FORMAT "\n", depth, "",
GST_FOURCC_ARGS(QTDEMUX_FOURCC_GET(buffer+12)));
g_print("%*s subtype: " GST_FOURCC_FORMAT "\n", depth, "",
GST_FOURCC_ARGS(QTDEMUX_FOURCC_GET(buffer+16)));
g_print("%*s manufacturer: " GST_FOURCC_FORMAT "\n", depth, "",
GST_FOURCC_ARGS(QTDEMUX_FOURCC_GET(buffer+20)));
g_print("%*s flags: %08x\n", depth, "", QTDEMUX_GUINT32_GET(buffer+24));
g_print("%*s flags mask: %08x\n", depth, "", QTDEMUX_GUINT32_GET(buffer+28));
g_print("%*s name: %*s\n", depth, "",
QTDEMUX_GUINT8_GET(buffer+32), (char *)(buffer+33));
}
static void qtdemux_dump_vmhd(GstQTDemux *qtdemux, void *buffer, int depth)
{
g_print("%*s version/flags: %08x\n", depth, "", QTDEMUX_GUINT32_GET(buffer+8));
g_print("%*s mode/color: %08x\n", depth, "", QTDEMUX_GUINT32_GET(buffer+16));
}
static void qtdemux_dump_dref(GstQTDemux *qtdemux, void *buffer, int depth)
{
int n;
int i;
int offset;
g_print("%*s version/flags: %08x\n", depth, "", QTDEMUX_GUINT32_GET(buffer+8));
g_print("%*s n entries: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+12));
n = QTDEMUX_GUINT32_GET(buffer+12);
offset = 16;
for(i=0;i<n;i++){
g_print("%*s size: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+offset));
g_print("%*s type: " GST_FOURCC_FORMAT "\n", depth, "",
GST_FOURCC_ARGS(QTDEMUX_FOURCC_GET(buffer+offset+4)));
offset += QTDEMUX_GUINT32_GET(buffer+offset);
}
}
static void qtdemux_dump_stsd(GstQTDemux *qtdemux, void *buffer, int depth)
{
int i;
int n;
int offset;
g_print("%*s version/flags: %08x\n", depth, "", QTDEMUX_GUINT32_GET(buffer+8));
g_print("%*s n entries: %d\n", depth, "", QTDEMUX_GUINT32_GET(buffer+12));
n = QTDEMUX_GUINT32_GET(buffer+12);
offset = 16;
for(i=0;i<n;i++){
g_print("%*s size: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+offset));
g_print("%*s type: " GST_FOURCC_FORMAT "\n", depth, "",
GST_FOURCC_ARGS(QTDEMUX_FOURCC_GET(buffer+offset+4)));
g_print("%*s data reference:%d\n", depth, "", QTDEMUX_GUINT16_GET(buffer+offset+14));
g_print("%*s version/rev.: %08x\n", depth, "", QTDEMUX_GUINT32_GET(buffer+offset+16));
g_print("%*s vendor: " GST_FOURCC_FORMAT "\n", depth, "",
GST_FOURCC_ARGS(QTDEMUX_FOURCC_GET(buffer+offset+20)));
g_print("%*s temporal qual: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+offset+24));
g_print("%*s spatial qual: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+offset+28));
g_print("%*s width: %u\n", depth, "", QTDEMUX_GUINT16_GET(buffer+offset+32));
g_print("%*s height: %u\n", depth, "", QTDEMUX_GUINT16_GET(buffer+offset+34));
g_print("%*s horiz. resol: %g\n", depth, "", QTDEMUX_FP32_GET(buffer+offset+36));
g_print("%*s vert. resol.: %g\n", depth, "", QTDEMUX_FP32_GET(buffer+offset+40));
g_print("%*s data size: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+offset+44));
g_print("%*s frame count: %u\n", depth, "", QTDEMUX_GUINT16_GET(buffer+offset+48));
g_print("%*s compressor: %*s\n", depth, "",
QTDEMUX_GUINT8_GET(buffer+offset+49), (char *)(buffer+offset+51));
g_print("%*s depth: %u\n", depth, "", QTDEMUX_GUINT16_GET(buffer+offset+82));
g_print("%*s color table ID:%u\n", depth, "", QTDEMUX_GUINT16_GET(buffer+offset+84));
offset += QTDEMUX_GUINT32_GET(buffer+offset);
}
}
static void qtdemux_dump_stts(GstQTDemux *qtdemux, void *buffer, int depth)
{
int i;
int n;
int offset;
g_print("%*s version/flags: %08x\n", depth, "", QTDEMUX_GUINT32_GET(buffer+8));
g_print("%*s n entries: %d\n", depth, "", QTDEMUX_GUINT32_GET(buffer+12));
n = QTDEMUX_GUINT32_GET(buffer+12);
offset = 16;
for(i=0;i<n;i++){
g_print("%*s count: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+offset));
g_print("%*s duration: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+offset + 4));
offset += 8;
}
}
static void qtdemux_dump_stss(GstQTDemux *qtdemux, void *buffer, int depth)
{
int i;
int n;
int offset;
g_print("%*s version/flags: %08x\n", depth, "", QTDEMUX_GUINT32_GET(buffer+8));
g_print("%*s n entries: %d\n", depth, "", QTDEMUX_GUINT32_GET(buffer+12));
n = QTDEMUX_GUINT32_GET(buffer+12);
offset = 16;
for(i=0;i<n;i++){
g_print("%*s sample: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+offset));
offset += 4;
}
}
static void qtdemux_dump_stsc(GstQTDemux *qtdemux, void *buffer, int depth)
{
int i;
int n;
int offset;
g_print("%*s version/flags: %08x\n", depth, "", QTDEMUX_GUINT32_GET(buffer+8));
g_print("%*s n entries: %d\n", depth, "", QTDEMUX_GUINT32_GET(buffer+12));
n = QTDEMUX_GUINT32_GET(buffer+12);
offset = 16;
for(i=0;i<n;i++){
g_print("%*s first chunk: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+offset));
g_print("%*s sample per ch: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+offset+4));
g_print("%*s sample desc id:%08x\n", depth, "", QTDEMUX_GUINT32_GET(buffer+offset+8));
offset += 12;
}
}
static void qtdemux_dump_stsz(GstQTDemux *qtdemux, void *buffer, int depth)
{
int i;
int n;
int offset;
int sample_size;
g_print("%*s version/flags: %08x\n", depth, "", QTDEMUX_GUINT32_GET(buffer+8));
g_print("%*s sample size: %d\n", depth, "", QTDEMUX_GUINT32_GET(buffer+12));
sample_size = QTDEMUX_GUINT32_GET(buffer+12);
if(sample_size == 0){
g_print("%*s n entries: %d\n", depth, "", QTDEMUX_GUINT32_GET(buffer+16));
n = QTDEMUX_GUINT32_GET(buffer+16);
offset = 20;
for(i=0;i<n;i++){
g_print("%*s sample size: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+offset));
offset += 4;
}
}
}
static void qtdemux_dump_stco(GstQTDemux *qtdemux, void *buffer, int depth)
{
int i;
int n;
int offset;
g_print("%*s version/flags: %08x\n", depth, "", QTDEMUX_GUINT32_GET(buffer+8));
g_print("%*s n entries: %d\n", depth, "", QTDEMUX_GUINT32_GET(buffer+12));
n = QTDEMUX_GUINT32_GET(buffer+12);
offset = 16;
for(i=0;i<n;i++){
g_print("%*s chunk offset: %u\n", depth, "", QTDEMUX_GUINT32_GET(buffer+offset));
offset += 4;
}
}
static void qtdemux_dump_co64(GstQTDemux *qtdemux, void *buffer, int depth)
{
int i;
int n;
int offset;
g_print("%*s version/flags: %08x\n", depth, "", QTDEMUX_GUINT32_GET(buffer+8));
g_print("%*s n entries: %d\n", depth, "", QTDEMUX_GUINT32_GET(buffer+12));
n = QTDEMUX_GUINT32_GET(buffer+12);
offset = 16;
for(i=0;i<n;i++){
g_print("%*s chunk offset: %" G_GUINT64_FORMAT "\n", depth, "", QTDEMUX_GUINT64_GET(buffer+offset));
offset += 8;
}
}
static void qtdemux_dump_dcom(GstQTDemux *qtdemux, void *buffer, int depth)
{
g_print("%*s compression type: " GST_FOURCC_FORMAT "\n", depth, "",
GST_FOURCC_ARGS(QTDEMUX_FOURCC_GET(buffer+8)));
}
static void qtdemux_dump_cmvd(GstQTDemux *qtdemux, void *buffer, int depth)
{
g_print("%*s length: %d\n", depth, "", QTDEMUX_GUINT32_GET(buffer+8));
}
static GNode *qtdemux_tree_get_child_by_type(GNode *node, guint32 fourcc)
{
GNode *child;
void *buffer;
guint32 child_fourcc;
for(child = g_node_first_child(node); child; child = g_node_next_sibling(child)){
buffer = child->data;
child_fourcc = GUINT32_FROM_LE(*(guint32 *)(buffer+4));
if(child_fourcc == fourcc){
return child;
}
}
return NULL;
}
static GNode *qtdemux_tree_get_sibling_by_type(GNode *node, guint32 fourcc)
{
GNode *child;
void *buffer;
guint32 child_fourcc;
for(child = g_node_next_sibling(node); child; child = g_node_next_sibling(child)){
buffer = child->data;
child_fourcc = GUINT32_FROM_LE(*(guint32 *)(buffer+4));
if(child_fourcc == fourcc){
return child;
}
}
return NULL;
}
static void qtdemux_parse_trak(GstQTDemux *qtdemux, GNode *trak);
static void qtdemux_parse_tree(GstQTDemux *qtdemux)
{
GNode *mvhd;
GNode *trak;
mvhd = qtdemux_tree_get_child_by_type(qtdemux->moov_node, FOURCC_mvhd);
if(mvhd==NULL){
g_print("No mvhd node found.\n");
return;
}
qtdemux->timescale = QTDEMUX_GUINT32_GET(mvhd->data + 20);
qtdemux->duration = QTDEMUX_GUINT32_GET(mvhd->data + 24);
g_print("timescale: %d\n", qtdemux->timescale);
g_print("duration: %d\n", qtdemux->duration);
trak = qtdemux_tree_get_child_by_type(qtdemux->moov_node, FOURCC_trak);
qtdemux_parse_trak(qtdemux, trak);
trak = qtdemux_tree_get_sibling_by_type(trak, FOURCC_trak);
if(trak)qtdemux_parse_trak(qtdemux, trak);
}
static void qtdemux_parse_trak(GstQTDemux *qtdemux, GNode *trak)
{
int offset;
GNode *tkhd;
GNode *mdia;
GNode *mdhd;
GNode *hdlr;
GNode *minf;
GNode *stbl;
GNode *stsd;
GNode *stsc;
GNode *stsz;
GNode *stco;
GNode *co64;
GNode *stts;
int n_samples;
QtDemuxSample *samples;
int n_samples_per_chunk;
int index;
int i,j,k;
QtDemuxStream *stream;
int n_sample_times;
guint64 timestamp;
int sample_size;
int sample_index;
stream = g_new0(QtDemuxStream,1);
tkhd = qtdemux_tree_get_child_by_type(trak, FOURCC_tkhd);
g_assert(tkhd);
/* track duration? */
mdia = qtdemux_tree_get_child_by_type(trak, FOURCC_mdia);
g_assert(mdia);
mdhd = qtdemux_tree_get_child_by_type(mdia, FOURCC_mdhd);
g_assert(mdhd);
stream->timescale = QTDEMUX_GUINT32_GET(mdhd->data+20);
hdlr = qtdemux_tree_get_child_by_type(mdia, FOURCC_hdlr);
g_assert(hdlr);
g_print("track type: " GST_FOURCC_FORMAT "\n",
GST_FOURCC_ARGS(QTDEMUX_FOURCC_GET(hdlr->data+12)));
g_print("track subtype: " GST_FOURCC_FORMAT "\n",
GST_FOURCC_ARGS(QTDEMUX_FOURCC_GET(hdlr->data+16)));
stream->subtype = QTDEMUX_FOURCC_GET(hdlr->data+16);
minf = qtdemux_tree_get_child_by_type(mdia, FOURCC_minf);
g_assert(minf);
stbl = qtdemux_tree_get_child_by_type(minf, FOURCC_stbl);
g_assert(stbl);
stsd = qtdemux_tree_get_child_by_type(stbl, FOURCC_stsd);
g_assert(stsd);
if(stream->subtype == FOURCC_vide){
offset = 16;
g_print("st type: " GST_FOURCC_FORMAT "\n",
GST_FOURCC_ARGS(QTDEMUX_FOURCC_GET(stsd->data+offset+4)));
stream->width = QTDEMUX_GUINT16_GET(stsd->data+offset+32);
stream->height = QTDEMUX_GUINT16_GET(stsd->data+offset+34);
stream->fps = 0.; /* this is filled in later */
g_print("frame count: %u\n", QTDEMUX_GUINT16_GET(stsd->data+offset+48));
stream->caps = qtdemux_video_caps(qtdemux,
QTDEMUX_FOURCC_GET(stsd->data+offset+4));
g_print("caps %s\n",gst_caps_to_string(stream->caps));
}else if(stream->subtype == FOURCC_soun){
int version;
g_print("st type: " GST_FOURCC_FORMAT "\n",
GST_FOURCC_ARGS(QTDEMUX_FOURCC_GET(stsd->data+16+4)));
offset = 32;
g_print("version/rev: %08x\n", QTDEMUX_GUINT32_GET(stsd->data+offset));
version = QTDEMUX_GUINT32_GET(stsd->data+offset);
g_print("vendor: %08x\n", QTDEMUX_GUINT32_GET(stsd->data+offset + 4));
g_print("n_channels: %d\n", QTDEMUX_GUINT16_GET(stsd->data+offset + 8));
stream->n_channels = QTDEMUX_GUINT16_GET(stsd->data+offset + 8);
g_print("sample_size: %d\n", QTDEMUX_GUINT16_GET(stsd->data+offset + 10));
g_print("compression_id: %d\n", QTDEMUX_GUINT16_GET(stsd->data+offset + 12));
g_print("packet size: %d\n", QTDEMUX_GUINT16_GET(stsd->data+offset + 14));
g_print("sample rate: %g\n", QTDEMUX_FP32_GET(stsd->data+offset + 16));
stream->rate = QTDEMUX_FP32_GET(stsd->data+offset + 16);
if(version == 0x00010000){
g_print("samples/packet: %d\n", QTDEMUX_GUINT32_GET(stsd->data+offset + 20));
g_print("bytes/packet: %d\n", QTDEMUX_GUINT32_GET(stsd->data+offset + 24));
g_print("bytes/frame: %d\n", QTDEMUX_GUINT32_GET(stsd->data+offset + 28));
g_print("bytes/sample: %d\n", QTDEMUX_GUINT32_GET(stsd->data+offset + 32));
}
stream->caps = qtdemux_audio_caps(qtdemux,
QTDEMUX_FOURCC_GET(stsd->data+16+4));
g_print("caps %s\n",gst_caps_to_string(stream->caps));
}else{
g_print("unknown subtype\n");
return;
}
if(stream->caps){
gst_caps_ref(stream->caps);
gst_caps_sink(stream->caps);
}
/* sample to chunk */
stsc = qtdemux_tree_get_child_by_type(stbl, FOURCC_stsc);
g_assert(stsc);
/* sample size */
stsz = qtdemux_tree_get_child_by_type(stbl, FOURCC_stsz);
g_assert(stsz);
/* chunk offsets */
stco = qtdemux_tree_get_child_by_type(stbl, FOURCC_stco);
co64 = qtdemux_tree_get_child_by_type(stbl, FOURCC_co64);
g_assert(stco || co64);
/* sample time */
stts = qtdemux_tree_get_child_by_type(stbl, FOURCC_stts);
g_assert(stts);
sample_size = QTDEMUX_GUINT32_GET(stsz->data+12);
if(sample_size == 0){
n_samples = QTDEMUX_GUINT32_GET(stsz->data+16);
stream->n_samples = n_samples;
samples = g_malloc(sizeof(QtDemuxSample)*n_samples);
stream->samples = samples;
for(i=0;i<n_samples;i++){
samples[i].size = QTDEMUX_GUINT32_GET(stsz->data + i*4 + 20);
}
n_samples_per_chunk = QTDEMUX_GUINT32_GET(stsc->data+12);
index = 0;
offset = 16;
for(i=0;i<n_samples_per_chunk;i++){
int first_chunk, last_chunk;
int samples_per_chunk;
first_chunk = QTDEMUX_GUINT32_GET(stsc->data + 16 + i*12 + 0) - 1;
if(i==n_samples_per_chunk-1){
last_chunk = INT_MAX;
}else{
last_chunk = QTDEMUX_GUINT32_GET(stsc->data +16 + i*12 + 12) - 1;
}
samples_per_chunk = QTDEMUX_GUINT32_GET(stsc->data + 16 + i*12 + 4);
for(j=first_chunk;j<last_chunk;j++){
int chunk_offset;
if(stco){
chunk_offset = QTDEMUX_GUINT32_GET(stco->data + 16 + j*4);
}else{
chunk_offset = QTDEMUX_GUINT64_GET(co64->data + 16 + j*8);
}
for(k=0;k<samples_per_chunk;k++){
samples[index].chunk = j;
samples[index].offset = chunk_offset;
chunk_offset += samples[index].size;
index++;
if(index>=n_samples)goto done;
}
}
}
done:
n_sample_times = QTDEMUX_GUINT32_GET(stts->data + 12);
timestamp = 0;
index = 0;
for(i=0;i<n_sample_times;i++){
int n;
int duration;
guint64 time;
n = QTDEMUX_GUINT32_GET(stts->data + 16 + 8*i);
duration = QTDEMUX_GUINT32_GET(stts->data + 16 + 8*i + 4);
time = (GST_SECOND * duration)/stream->timescale;
for(j=0;j<n;j++){
samples[index].timestamp = timestamp;
samples[index].duration = time;
timestamp += time;
index++;
}
}
}else{
int sample_width;
g_print("treating chunks as samples\n");
/* treat chunks as samples */
if(stco){
n_samples = QTDEMUX_GUINT32_GET(stco->data+12);
}else{
n_samples = QTDEMUX_GUINT32_GET(co64->data+12);
}
stream->n_samples = n_samples;
samples = g_malloc(sizeof(QtDemuxSample)*n_samples);
stream->samples = samples;
sample_width = QTDEMUX_GUINT16_GET(stsd->data+offset + 10) / 8;
n_samples_per_chunk = QTDEMUX_GUINT32_GET(stsc->data+12);
offset = 16;
sample_index = 0;
for(i=0;i<n_samples_per_chunk;i++){
int first_chunk, last_chunk;
int samples_per_chunk;
first_chunk = QTDEMUX_GUINT32_GET(stsc->data + 16 + i*12 + 0) - 1;
if(i==n_samples-1){
last_chunk = INT_MAX;
}else{
last_chunk = QTDEMUX_GUINT32_GET(stsc->data +16 + i*12 + 12) - 1;
}
samples_per_chunk = QTDEMUX_GUINT32_GET(stsc->data + 16 + i*12 + 4);
for(j=first_chunk;j<last_chunk;j++){
int chunk_offset;
if(stco){
chunk_offset = QTDEMUX_GUINT32_GET(stco->data + 16 + j*4);
}else{
chunk_offset = QTDEMUX_GUINT64_GET(co64->data + 16 + j*8);
}
samples[j].chunk = j;
samples[j].offset = chunk_offset;
samples[j].size = samples_per_chunk * stream->n_channels * sample_width;
samples[j].sample_index = sample_index;
sample_index += samples_per_chunk;
if(j>=n_samples)goto done2;
}
}
done2:
n_sample_times = QTDEMUX_GUINT32_GET(stts->data + 12);
g_print("n_sample_times = %d\n",n_sample_times);
timestamp = 0;
index = 0;
sample_index = 0;
for(i=0;i<n_sample_times;i++){
int duration;
guint64 time;
sample_index += QTDEMUX_GUINT32_GET(stts->data + 16 + 8*i);
duration = QTDEMUX_GUINT32_GET(stts->data + 16 + 8*i + 4);
for(;index < n_samples && samples[index].sample_index < sample_index;index++){
int size;
samples[index].timestamp = timestamp;
size = samples[index+1].sample_index - samples[index].sample_index;
time = (GST_SECOND * duration * samples[index].size)/stream->timescale ;
timestamp += time;
samples[index].duration = time;
}
}
}
#if 0
for(i=0;i<n_samples;i++){
g_print("%d: %d %d %d %d %" G_GUINT64_FORMAT "\n",i,
samples[i].sample_index,samples[i].chunk,
samples[i].offset, samples[i].size, samples[i].timestamp);
if(i>10)break;
}
#endif
gst_qtdemux_add_stream(qtdemux,stream);
}
static GstCaps *qtdemux_video_caps(GstQTDemux *qtdemux, guint32 fourcc)
{
switch(fourcc){
case GST_MAKE_FOURCC('j','p','e','g'):
/* JPEG */
return GST_CAPS_NEW("jpeg_caps","video/x-jpeg",
"framerate", GST_PROPS_FLOAT_RANGE (0, G_MAXFLOAT),
"width", GST_PROPS_INT_RANGE (16, 4096),
"height", GST_PROPS_INT_RANGE (16, 4096));
case GST_MAKE_FOURCC('m','j','p','a'):
/* Motion-JPEG (format A) */
return GST_CAPS_NEW("mjpa_caps","video/x-jpeg",
"framerate", GST_PROPS_FLOAT_RANGE (0, G_MAXFLOAT),
"width", GST_PROPS_INT_RANGE (16, 4096),
"height", GST_PROPS_INT_RANGE (16, 4096));
case GST_MAKE_FOURCC('m','j','p','b'):
/* Motion-JPEG (format B) */
return GST_CAPS_NEW("mjpb_caps","video/x-jpeg",
"framerate", GST_PROPS_FLOAT_RANGE (0, G_MAXFLOAT),
"width", GST_PROPS_INT_RANGE (16, 4096),
"height", GST_PROPS_INT_RANGE (16, 4096));
case GST_MAKE_FOURCC('S','V','Q','3'):
return GST_CAPS_NEW("SVQ3_caps","video/x-svq",
"svqversion", GST_PROPS_INT(3),
"framerate", GST_PROPS_FLOAT_RANGE (0, G_MAXFLOAT),
"width", GST_PROPS_INT_RANGE (16, 4096),
"height", GST_PROPS_INT_RANGE (16, 4096));
case GST_MAKE_FOURCC('s','v','q','i'):
case GST_MAKE_FOURCC('S','V','Q','1'):
return GST_CAPS_NEW("SVQ1_caps","video/x-svq",
"svqversion", GST_PROPS_INT(1),
"framerate", GST_PROPS_FLOAT_RANGE (0, G_MAXFLOAT),
"width", GST_PROPS_INT_RANGE (16, 4096),
"height", GST_PROPS_INT_RANGE (16, 4096));
case GST_MAKE_FOURCC('r','a','w',' '):
/* uncompressed RGB */
return GST_CAPS_NEW("raw__caps","video/x-raw-rgb",
"endianness",GST_PROPS_INT(G_BIG_ENDIAN),
/*"bpp", GST_PROPS_INT(x),
"depth", GST_PROPS_INT(x),
"red_mask", GST_PROPS_INT(x),
"green_mask", GST_PROPS_INT(x),
"blue_mask", GST_PROPS_INT(x), FIXME! */
"framerate", GST_PROPS_FLOAT_RANGE (0, G_MAXFLOAT),
"width", GST_PROPS_INT_RANGE (16, 4096),
"height", GST_PROPS_INT_RANGE (16, 4096));
case GST_MAKE_FOURCC('Y','u','v','2'):
/* uncompressed YUV2 */
return GST_CAPS_NEW("Yuv2_caps","video/x-raw-yuv",
"format",GST_PROPS_FOURCC(GST_MAKE_FOURCC('Y','U','V','2')),
"framerate", GST_PROPS_FLOAT_RANGE (0, G_MAXFLOAT),
"width", GST_PROPS_INT_RANGE (16, 4096),
"height", GST_PROPS_INT_RANGE (16, 4096));
case GST_MAKE_FOURCC('m','p','e','g'):
/* MPEG */
return GST_CAPS_NEW("mpeg_caps","video/mpeg",
"framerate", GST_PROPS_FLOAT_RANGE (0, G_MAXFLOAT),
"width", GST_PROPS_INT_RANGE (16, 4096),
"height", GST_PROPS_INT_RANGE (16, 4096),
"systemstream", GST_PROPS_BOOLEAN(FALSE),
"mpegversion", GST_PROPS_INT(1));
case GST_MAKE_FOURCC('g','i','f',' '):
return GST_CAPS_NEW("gif__caps","image/gif",
"framerate", GST_PROPS_FLOAT_RANGE (0, G_MAXFLOAT),
"width", GST_PROPS_INT_RANGE (16, 4096),
"height", GST_PROPS_INT_RANGE (16, 4096));
case GST_MAKE_FOURCC('h','2','6','3'):
/* H.263 */
/* ffmpeg uses the height/width props, don't know why */
return GST_CAPS_NEW("h263_caps","video/x-h263",
"framerate", GST_PROPS_FLOAT_RANGE (0, G_MAXFLOAT),
"width", GST_PROPS_INT_RANGE (16, 4096),
"height", GST_PROPS_INT_RANGE (16, 4096));
case GST_MAKE_FOURCC('m','p','4','v'):
/* MPEG-4 */
return GST_CAPS_NEW("mp4v_caps", "video/mpeg",
"mpegversion",GST_PROPS_INT(4),
"systemstream", GST_PROPS_BOOLEAN(FALSE),
"framerate", GST_PROPS_FLOAT_RANGE (0, G_MAXFLOAT),
"width", GST_PROPS_INT_RANGE (16, 4096),
"height", GST_PROPS_INT_RANGE (16, 4096));
case GST_MAKE_FOURCC('3','I','V','1'):
return GST_CAPS_NEW("3IV1_caps", "video/x-3ivx",
"framerate", GST_PROPS_FLOAT_RANGE (0, G_MAXFLOAT),
"width", GST_PROPS_INT_RANGE (16, 4096),
"height", GST_PROPS_INT_RANGE (16, 4096));
case GST_MAKE_FOURCC('r','p','z','a'):
case GST_MAKE_FOURCC('c','v','i','d'):
/* Cinepak */
case GST_MAKE_FOURCC('r','l','e',' '):
/* Run-length encoding */
case GST_MAKE_FOURCC('s','m','c',' '):
case GST_MAKE_FOURCC('k','p','c','d'):
default:
g_print("Don't know how to convert fourcc '" GST_FOURCC_FORMAT
"' to caps\n", GST_FOURCC_ARGS(fourcc));
return NULL;
}
}
static GstCaps *qtdemux_audio_caps(GstQTDemux *qtdemux, guint32 fourcc)
{
switch(fourcc){
case GST_MAKE_FOURCC('N','O','N','E'):
return NULL; /*GST_CAPS_NEW("NONE_caps","audio/raw",NULL);*/
case GST_MAKE_FOURCC('r','a','w',' '):
/* FIXME */
return GST_CAPS_NEW("raw__caps","audio/x-raw-int",
"width",GST_PROPS_INT(8),
"depth",GST_PROPS_INT(8),
"signed",GST_PROPS_BOOLEAN(FALSE),
"rate",GST_PROPS_INT_RANGE(1,G_MAXINT),
"channels",GST_PROPS_INT_RANGE(1,G_MAXINT));
case GST_MAKE_FOURCC('t','w','o','s'):
/* FIXME */
return GST_CAPS_NEW("twos_caps","audio/x-raw-int",
"width",GST_PROPS_INT(16),
"depth",GST_PROPS_INT(16),
"endianness",GST_PROPS_INT(G_BIG_ENDIAN),
"signed",GST_PROPS_BOOLEAN(TRUE),
"rate",GST_PROPS_INT_RANGE(1,G_MAXINT),
"channels",GST_PROPS_INT_RANGE(1,G_MAXINT));
case GST_MAKE_FOURCC('s','o','w','t'):
/* FIXME */
return GST_CAPS_NEW("sowt_caps","audio/x-raw-int",
"width",GST_PROPS_INT(16),
"depth",GST_PROPS_INT(16),
"endianness",GST_PROPS_INT(G_LITTLE_ENDIAN),
"signed",GST_PROPS_BOOLEAN(TRUE),
"rate",GST_PROPS_INT_RANGE(1,G_MAXINT),
"channels",GST_PROPS_INT_RANGE(1,G_MAXINT));
case GST_MAKE_FOURCC('f','l','6','4'):
return GST_CAPS_NEW("fl64_caps","audio/x-raw-float",
"width",GST_PROPS_INT (64),
"endianness",GST_PROPS_INT (G_BIG_ENDIAN),
"rate",GST_PROPS_INT_RANGE(1,G_MAXINT),
"channels",GST_PROPS_INT_RANGE(1,G_MAXINT));
case GST_MAKE_FOURCC('f','l','3','2'):
return GST_CAPS_NEW("fl32_caps","audio/x-raw-float",
"width",GST_PROPS_INT (32),
"endianness",GST_PROPS_INT (G_BIG_ENDIAN),
"rate",GST_PROPS_INT_RANGE(1,G_MAXINT),
"channels",GST_PROPS_INT_RANGE(1,G_MAXINT));
case GST_MAKE_FOURCC('i','n','2','4'):
/* FIXME */
return GST_CAPS_NEW("in24_caps","audio/x-raw-int",
"width",GST_PROPS_INT(24),
"depth",GST_PROPS_INT(32),
"endianness",GST_PROPS_INT(G_BIG_ENDIAN),
"signed",GST_PROPS_BOOLEAN(TRUE),
"rate",GST_PROPS_INT_RANGE(1,G_MAXINT),
"channels",GST_PROPS_INT_RANGE(1,G_MAXINT));
case GST_MAKE_FOURCC('i','n','3','2'):
/* FIXME */
return GST_CAPS_NEW("in32_caps","audio/x-raw-int",
"width",GST_PROPS_INT(24),
"depth",GST_PROPS_INT(32),
"endianness",GST_PROPS_INT(G_BIG_ENDIAN),
"rate",GST_PROPS_INT_RANGE(1,G_MAXINT),
"channels",GST_PROPS_INT_RANGE(1,G_MAXINT));
case GST_MAKE_FOURCC('u','l','a','w'):
/* FIXME */
return GST_CAPS_NEW("ulaw_caps","audio/x-mulaw",
"rate",GST_PROPS_INT_RANGE(1,G_MAXINT),
"channels",GST_PROPS_INT_RANGE(1,G_MAXINT));
case GST_MAKE_FOURCC('a','l','a','w'):
/* FIXME */
return GST_CAPS_NEW("alaw_caps","audio/x-alaw",
"rate",GST_PROPS_INT_RANGE(1,G_MAXINT),
"channels",GST_PROPS_INT_RANGE(1,G_MAXINT));
case 0x6d730002:
/* Microsoft ADPCM-ACM code 2 */
return GST_CAPS_NEW("msxx_caps","audio/x-adpcm",
"layout", GST_PROPS_STRING("microsoft"),
"rate",GST_PROPS_INT_RANGE(1,G_MAXINT),
"channels",GST_PROPS_INT_RANGE(1,G_MAXINT),
NULL);
case 0x6d730011:
/* FIXME DVI/Intel IMA ADPCM/ACM code 17 */
return GST_CAPS_NEW("msxx_caps","audio/x-adpcm",
"layout", GST_PROPS_STRING("quicktime"),
"rate",GST_PROPS_INT_RANGE(1,G_MAXINT),
"channels",GST_PROPS_INT_RANGE(1,G_MAXINT),
NULL);
case 0x6d730055:
/* MPEG layer 3, CBR only (pre QT4.1) */
case GST_MAKE_FOURCC('.','m','p','3'):
/* MPEG layer 3, CBR & VBR (QT4.1 and later) */
return GST_CAPS_NEW("_mp3_caps","audio/mpeg",
"layer", GST_PROPS_INT(3),
"rate",GST_PROPS_INT_RANGE(1,G_MAXINT),
"channels",GST_PROPS_INT_RANGE(1,G_MAXINT),
NULL);
case GST_MAKE_FOURCC('M','A','C','3'):
/* MACE 3:1 */
return GST_CAPS_NEW("MAC3_caps","audio/x-mace",
"maceversion",GST_PROPS_INT(3),
"rate",GST_PROPS_INT_RANGE(1,G_MAXINT),
"channels",GST_PROPS_INT_RANGE(1,G_MAXINT),
NULL);
case GST_MAKE_FOURCC('M','A','C','6'):
/* MACE 6:1 */
return GST_CAPS_NEW("MAC3_caps","audio/x-mace",
"maceversion",GST_PROPS_INT(6),
"rate",GST_PROPS_INT_RANGE(1,G_MAXINT),
"channels",GST_PROPS_INT_RANGE(1,G_MAXINT),
NULL);
case GST_MAKE_FOURCC('O','g','g','V'):
/* Ogg Vorbis */
return GST_CAPS_NEW("OggV_caps","application/ogg",
"rate",GST_PROPS_INT_RANGE(1,G_MAXINT),
"channels",GST_PROPS_INT_RANGE(1,G_MAXINT),
NULL);
case GST_MAKE_FOURCC('d','v','c','a'):
/* DV audio */
return GST_CAPS_NEW("dvca_caps","audio/x-dv",
"rate",GST_PROPS_INT_RANGE(1,G_MAXINT),
"channels",GST_PROPS_INT_RANGE(1,G_MAXINT),
NULL);
case GST_MAKE_FOURCC('m','p','4','a'):
/* MPEG-4 AAC */
return GST_CAPS_NEW("mp4a_caps", "audio/mpeg",
"mpegversion", GST_PROPS_INT(4),
"rate", GST_PROPS_INT_RANGE(1, G_MAXINT),
"channels", GST_PROPS_INT_RANGE(1, G_MAXINT),
"systemstream", GST_PROPS_BOOLEAN(FALSE), NULL);
case GST_MAKE_FOURCC('q','t','v','r'):
/* ? */
case GST_MAKE_FOURCC('Q','D','M','2'):
/* QDesign music version 2 (no constant) */
case GST_MAKE_FOURCC('Q','D','M','C'):
/* QDesign music */
case GST_MAKE_FOURCC('i','m','a','4'):
/* IMA 4:1 */
case GST_MAKE_FOURCC('Q','c','l','p'):
/* QUALCOMM PureVoice */
case GST_MAKE_FOURCC('a','g','s','m'):
/* ? */
default:
g_print("Don't know how to convert fourcc '" GST_FOURCC_FORMAT
"' to caps\n", GST_FOURCC_ARGS(fourcc));
return NULL;
}
}
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