void VideoStreamTheora::clear() {
if (file_name == "")
return;
if(vorbis_p){
ogg_stream_clear(&vo);
if (vorbis_p >= 3) {
vorbis_block_clear(&vb);
vorbis_dsp_clear(&vd);
};
vorbis_comment_clear(&vc);
vorbis_info_clear(&vi);
vorbis_p = 0;
}
if(theora_p){
ogg_stream_clear(&to);
th_decode_free(td);
th_comment_clear(&tc);
th_info_clear(&ti);
theora_p = 0;
}
ogg_sync_clear(&oy);
file_name = "";
theora_p = 0;
vorbis_p = 0;
videobuf_ready = 0;
frames_pending = 0;
videobuf_time = 0;
playing = false;
};
nsTheoraState::~nsTheoraState() {
MOZ_COUNT_DTOR(nsTheoraState);
th_setup_free(mSetup);
th_decode_free(mCtx);
th_comment_clear(&mComment);
th_info_clear(&mInfo);
}
TheoraDecoder::~TheoraDecoder()
{
th_comment_clear(&mTheoraComment);
th_info_clear(&mTheoraInfo);
th_decode_free(mTheoraState);
th_setup_free(mTheoraSetup);
}
void krad_theora_decoder_destroy(krad_theora_decoder_t *krad_theora) {
th_decode_free(krad_theora->decoder);
th_comment_clear(&krad_theora->comment);
th_info_clear(&krad_theora->info);
free(krad_theora);
}
TheoraVideoStream::~TheoraVideoStream()
{
if (decoder)
th_decode_free(decoder);
th_info_clear(&videoInfo);
delete frontBuffer;
delete backBuffer;
}
/*****************************************************************************
* CloseDecoder: theora decoder destruction
*****************************************************************************/
static void CloseDecoder( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t *)p_this;
decoder_sys_t *p_sys = p_dec->p_sys;
th_info_clear(&p_sys->ti);
th_comment_clear(&p_sys->tc);
th_decode_free(p_sys->tcx);
free( p_sys );
}
/*
* uninit driver
*/
static void uninit(sh_video_t *sh)
{
theora_struct_t *context = sh->context;
if (context) {
th_info_clear(&context->ti);
th_comment_clear(&context->tc);
th_decode_free(context->tctx);
free(context);
}
}
void VideoStreamPlaybackTheora::clear() {
if (!file)
return;
if (vorbis_p) {
ogg_stream_clear(&vo);
if (vorbis_p >= 3) {
vorbis_block_clear(&vb);
vorbis_dsp_clear(&vd);
};
vorbis_comment_clear(&vc);
vorbis_info_clear(&vi);
vorbis_p = 0;
}
if (theora_p) {
ogg_stream_clear(&to);
th_decode_free(td);
th_comment_clear(&tc);
th_info_clear(&ti);
theora_p = 0;
}
ogg_sync_clear(&oy);
#ifdef THEORA_USE_THREAD_STREAMING
thread_exit = true;
thread_sem->post(); //just in case
Thread::wait_to_finish(thread);
memdelete(thread);
thread = NULL;
ring_buffer.clear();
#endif
//file_name = "";
theora_p = 0;
vorbis_p = 0;
videobuf_ready = 0;
frames_pending = 0;
videobuf_time = 0;
theora_eos = false;
vorbis_eos = false;
if (file) {
memdelete(file);
}
file = NULL;
playing = false;
};
static GstStateChangeReturn
theora_dec_change_state (GstElement * element, GstStateChange transition)
{
GstTheoraDec *dec = GST_THEORA_DEC (element);
GstStateChangeReturn ret;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
th_info_clear (&dec->info);
th_comment_clear (&dec->comment);
GST_DEBUG_OBJECT (dec, "Setting have_header to FALSE in READY->PAUSED");
dec->have_header = FALSE;
dec->have_par = FALSE;
gst_theora_dec_reset (dec);
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:
th_info_clear (&dec->info);
th_comment_clear (&dec->comment);
th_setup_free (dec->setup);
dec->setup = NULL;
th_decode_free (dec->decoder);
dec->decoder = NULL;
gst_theora_dec_reset (dec);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
VideoClip_Theora::~VideoClip_Theora()
{
if (this->info.TheoraDecoder != NULL)
{
th_decode_free(this->info.TheoraDecoder);
th_setup_free(this->info.TheoraSetup);
if (this->audioInterface != NULL)
{
vorbis_dsp_clear(&this->info.VorbisDSPState);
vorbis_block_clear(&this->info.VorbisBlock);
}
ogg_stream_clear(&this->info.TheoraStreamState);
th_comment_clear(&this->info.TheoraComment);
th_info_clear(&this->info.TheoraInfo);
ogg_stream_clear(&this->info.VorbisStreamState);
vorbis_comment_clear(&this->info.VorbisComment);
vorbis_info_clear(&this->info.VorbisInfo);
ogg_sync_clear(&this->info.OggSyncState);
}
}
void VideoClip_Theora::_executeRestart()
{
bool paused = this->timer->isPaused();
if (!paused)
{
this->timer->pause();
}
long initialGranule = 0;
th_decode_ctl(this->info.TheoraDecoder, TH_DECCTL_SET_GRANPOS, &initialGranule, sizeof(initialGranule));
th_decode_free(this->info.TheoraDecoder);
this->info.TheoraDecoder = th_decode_alloc(&this->info.TheoraInfo, this->info.TheoraSetup);
ogg_stream_reset(&this->info.TheoraStreamState);
if (this->audioInterface != NULL)
{
// empty the DSP buffer
ogg_packet opVorbis;
this->readAudioSamples = 0;
while (ogg_stream_packetout(&this->info.VorbisStreamState, &opVorbis) > 0)
{
if (vorbis_synthesis(&this->info.VorbisBlock, &opVorbis) == 0)
{
vorbis_synthesis_blockin(&this->info.VorbisDSPState, &this->info.VorbisBlock);
}
}
ogg_stream_reset(&this->info.VorbisStreamState);
}
ogg_sync_reset(&this->info.OggSyncState);
this->stream->seek(0);
ogg_int64_t granulePos = 0;
th_decode_ctl(this->info.TheoraDecoder, TH_DECCTL_SET_GRANPOS, &granulePos, sizeof(granulePos));
this->endOfFile = false;
this->restarted = true;
if (!paused)
{
this->timer->play();
}
}
void TheoraDecoder::close() {
if (_vorbisPacket) {
ogg_stream_clear(&_vorbisOut);
vorbis_block_clear(&_vorbisBlock);
vorbis_dsp_clear(&_vorbisDSP);
vorbis_comment_clear(&_vorbisComment);
vorbis_info_clear(&_vorbisInfo);
g_system->getMixer()->stopHandle(*_audHandle);
_audStream = 0;
_vorbisPacket = false;
}
if (_theoraPacket) {
ogg_stream_clear(&_theoraOut);
th_decode_free(_theoraDecode);
th_comment_clear(&_theoraComment);
th_info_clear(&_theoraInfo);
_theoraDecode = 0;
_theoraPacket = false;
}
if (!_fileStream)
return;
ogg_sync_clear(&_oggSync);
delete _fileStream;
_fileStream = 0;
_surface.free();
_displaySurface.pixels = 0;
_displaySurface.free();
reset();
}
static gboolean
theora_dec_stop (GstVideoDecoder * decoder)
{
GstTheoraDec *dec = GST_THEORA_DEC (decoder);
GST_DEBUG_OBJECT (dec, "stop");
th_info_clear (&dec->info);
th_comment_clear (&dec->comment);
th_setup_free (dec->setup);
dec->setup = NULL;
th_decode_free (dec->decoder);
dec->decoder = NULL;
gst_theora_dec_reset (dec);
if (dec->input_state) {
gst_video_codec_state_unref (dec->input_state);
dec->input_state = NULL;
}
if (dec->output_state) {
gst_video_codec_state_unref (dec->output_state);
dec->output_state = NULL;
}
return TRUE;
}
void TheoraPlayer::ReleaseData()
{
if(theoraData)
{
if(theoraData->thSetup)
th_setup_free(theoraData->thSetup);
theoraData->thSetup = 0;
if(theoraData->thCtx)
th_decode_free(theoraData->thCtx);
theoraData->thCtx = 0;
theoraData->videoBufGranulePos = -1;
ogg_sync_clear(&theoraData->syncState);
}
theora_p = 0;
isVideoBufReady = false;
videoTime = 0;
SafeRelease(file);
if(frameBuffer)
{
delete [] frameBuffer;
frameBuffer = 0;
}
isPlaying = false;
}
int main(int argc,char *argv[]){
ogg_packet op;
int long_option_index;
int c;
struct timeb start;
struct timeb after;
struct timeb last;
int fps_only=0;
int frames = 0;
FILE *infile = stdin;
outfile = stdout;
#ifdef _WIN32 /* We need to set stdin/stdout to binary mode on windows. */
/* Beware the evil ifdef. We avoid these where we can, but this one we
cannot. Don't add any more, you'll probably go to hell if you do. */
_setmode( _fileno( stdin ), _O_BINARY );
_setmode( _fileno( stdout ), _O_BINARY );
#endif
/* Process option arguments. */
while((c=getopt_long(argc,argv,optstring,options,&long_option_index))!=EOF){
switch(c){
case 'o':
if(strcmp(optarg,"-")!=0){
outfile=fopen(optarg,"wb");
if(outfile==NULL){
fprintf(stderr,"Unable to open output file '%s'\n", optarg);
exit(1);
}
}else{
outfile=stdout;
}
break;
case 'c':
crop=1;
break;
case 'r':
raw=1;
break;
case 'f':
fps_only = 1;
outfile = NULL;
break;
default:
usage();
}
}
if(optind<argc){
infile=fopen(argv[optind],"rb");
if(infile==NULL){
fprintf(stderr,"Unable to open '%s' for extraction.\n", argv[optind]);
exit(1);
}
if(++optind<argc){
usage();
exit(1);
}
}
/*Ok, Ogg parsing.
The idea here is we have a bitstream that is made up of Ogg pages.
The libogg sync layer will find them for us.
There may be pages from several logical streams interleaved; we find the
first theora stream and ignore any others.
Then we pass the pages for our stream to the libogg stream layer which
assembles our original set of packets out of them.
It's the packets that libtheora actually knows how to handle.*/
/* start up Ogg stream synchronization layer */
ogg_sync_init(&oy);
/* init supporting Theora structures needed in header parsing */
th_comment_init(&tc);
th_info_init(&ti);
/*Ogg file open; parse the headers.
Theora (like Vorbis) depends on some initial header packets for decoder
setup and initialization.
We retrieve these first before entering the main decode loop.*/
/* Only interested in Theora streams */
while(!stateflag){
int ret=buffer_data(infile,&oy);
if(ret==0)break;
while(ogg_sync_pageout(&oy,&og)>0){
int got_packet;
ogg_stream_state test;
/* is this a mandated initial header? If not, stop parsing */
if(!ogg_page_bos(&og)){
/* don't leak the page; get it into the appropriate stream */
queue_page(&og);
stateflag=1;
break;
}
ogg_stream_init(&test,ogg_page_serialno(&og));
ogg_stream_pagein(&test,&og);
got_packet = ogg_stream_packetpeek(&test,&op);
/* identify the codec: try theora */
if((got_packet==1) && !theora_p && (theora_processing_headers=
th_decode_headerin(&ti,&tc,&ts,&op))>=0){
/* it is theora -- save this stream state */
memcpy(&to,&test,sizeof(test));
theora_p=1;
/*Advance past the successfully processed header.*/
if(theora_processing_headers)ogg_stream_packetout(&to,NULL);
}else{
/* whatever it is, we don't care about it */
ogg_stream_clear(&test);
}
}
/* fall through to non-bos page parsing */
}
/* we're expecting more header packets. */
while(theora_p && theora_processing_headers){
int ret;
/* look for further theora headers */
while(theora_processing_headers&&(ret=ogg_stream_packetpeek(&to,&op))){
if(ret<0)continue;
theora_processing_headers=th_decode_headerin(&ti,&tc,&ts,&op);
if(theora_processing_headers<0){
fprintf(stderr,"Error parsing Theora stream headers; "
"corrupt stream?\n");
exit(1);
}
else if(theora_processing_headers>0){
/*Advance past the successfully processed header.*/
ogg_stream_packetout(&to,NULL);
}
theora_p++;
}
/*Stop now so we don't fail if there aren't enough pages in a short
stream.*/
if(!(theora_p && theora_processing_headers))break;
/* The header pages/packets will arrive before anything else we
care about, or the stream is not obeying spec */
if(ogg_sync_pageout(&oy,&og)>0){
queue_page(&og); /* demux into the appropriate stream */
}else{
int ret=buffer_data(infile,&oy); /* someone needs more data */
if(ret==0){
fprintf(stderr,"End of file while searching for codec headers.\n");
exit(1);
}
}
}
/* and now we have it all. initialize decoders */
if(theora_p){
dump_comments(&tc);
td=th_decode_alloc(&ti,ts);
fprintf(stderr,"Ogg logical stream %lx is Theora %dx%d %.02f fps video\n"
"Encoded frame content is %dx%d with %dx%d offset\n",
to.serialno,ti.frame_width,ti.frame_height,
(double)ti.fps_numerator/ti.fps_denominator,
ti.pic_width,ti.pic_height,ti.pic_x,ti.pic_y);
/*{
int arg = 0xffff;
th_decode_ctl(td,TH_DECCTL_SET_TELEMETRY_MBMODE,&arg,sizeof(arg));
th_decode_ctl(td,TH_DECCTL_SET_TELEMETRY_MV,&arg,sizeof(arg));
th_decode_ctl(td,TH_DECCTL_SET_TELEMETRY_QI,&arg,sizeof(arg));
arg=10;
th_decode_ctl(td,TH_DECCTL_SET_TELEMETRY_BITS,&arg,sizeof(arg));
}*/
}else{
/* tear down the partial theora setup */
th_info_clear(&ti);
th_comment_clear(&tc);
}
/*Either way, we're done with the codec setup data.*/
th_setup_free(ts);
/* open video */
if(theora_p)open_video();
if(!raw && outfile){
static const char *CHROMA_TYPES[4]={"420jpeg",NULL,"422jpeg","444"};
int width;
int height;
if(ti.pixel_fmt>=4||ti.pixel_fmt==TH_PF_RSVD){
fprintf(stderr,"Unknown pixel format: %i\n",ti.pixel_fmt);
exit(1);
}
if(crop){
int hdec;
int vdec;
hdec=!(ti.pixel_fmt&1);
vdec=!(ti.pixel_fmt&2);
if((ti.pic_x&hdec)||(ti.pic_width&hdec)
||(ti.pic_y&vdec)||(ti.pic_height&vdec)){
fprintf(stderr,
"Error: Cropped images with odd offsets/sizes and chroma subsampling\n"
"cannot be output to YUV4MPEG2. Remove the --crop flag or add the\n"
"--raw flag.\n");
exit(1);
}
width=ti.pic_width;
height=ti.pic_height;
}
else{
width=ti.frame_width;
height=ti.frame_height;
}
fprintf(outfile,"YUV4MPEG2 C%s W%d H%d F%d:%d I%c A%d:%d\n",
CHROMA_TYPES[ti.pixel_fmt],width,height,
ti.fps_numerator,ti.fps_denominator,'p',
ti.aspect_numerator,ti.aspect_denominator);
}
/* install signal handler */
signal (SIGINT, sigint_handler);
/*Finally the main decode loop.
It's one Theora packet per frame, so this is pretty straightforward if
we're not trying to maintain sync with other multiplexed streams.
The videobuf_ready flag is used to maintain the input buffer in the libogg
stream state.
If there's no output frame available at the end of the decode step, we must
need more input data.
We could simplify this by just using the return code on
ogg_page_packetout(), but the flag system extends easily to the case where
you care about more than one multiplexed stream (like with audio
playback).
In that case, just maintain a flag for each decoder you care about, and
pull data when any one of them stalls.
videobuf_time holds the presentation time of the currently buffered video
frame.
We ignore this value.*/
stateflag=0; /* playback has not begun */
/* queue any remaining pages from data we buffered but that did not
contain headers */
while(ogg_sync_pageout(&oy,&og)>0){
queue_page(&og);
}
if(fps_only){
ftime(&start);
ftime(&last);
}
while(!got_sigint){
while(theora_p && !videobuf_ready){
/* theora is one in, one out... */
if(ogg_stream_packetout(&to,&op)>0){
if(th_decode_packetin(td,&op,&videobuf_granulepos)>=0){
videobuf_time=th_granule_time(td,videobuf_granulepos);
videobuf_ready=1;
frames++;
if(fps_only)
ftime(&after);
}
}else
break;
}
if(fps_only && (videobuf_ready || fps_only==2)){
long ms =
after.time*1000.+after.millitm-
(last.time*1000.+last.millitm);
if(ms>500 || fps_only==1 ||
(feof(infile) && !videobuf_ready)){
float file_fps = (float)ti.fps_numerator/ti.fps_denominator;
fps_only=2;
ms = after.time*1000.+after.millitm-
(start.time*1000.+start.millitm);
fprintf(stderr,"\rframe:%d rate:%.2fx ",
frames,
frames*1000./(ms*file_fps));
memcpy(&last,&after,sizeof(last));
}
}
if(!videobuf_ready && feof(infile))break;
if(!videobuf_ready){
/* no data yet for somebody. Grab another page */
buffer_data(infile,&oy);
while(ogg_sync_pageout(&oy,&og)>0){
queue_page(&og);
}
}
/* dumpvideo frame, and get new one */
else if(outfile)video_write();
videobuf_ready=0;
}
/* end of decoder loop -- close everything */
if(theora_p){
ogg_stream_clear(&to);
th_decode_free(td);
th_comment_clear(&tc);
th_info_clear(&ti);
}
ogg_sync_clear(&oy);
if(infile && infile!=stdin)fclose(infile);
if(outfile && outfile!=stdout)fclose(outfile);
fprintf(stderr, "\n\n%d frames\n", frames);
fprintf(stderr, "\nDone.\n");
return(0);
}
void IoTheoraDecodeContext_free(IoTheoraDecodeContext *self)
{
th_decode_free(DATA(self)->ctx);
free(DATA(self));
}
static void th_dec_api_clear(th_api_wrapper *_api){
if(_api->setup)th_setup_free(_api->setup);
if(_api->decode)th_decode_free(_api->decode);
memset(_api,0,sizeof(*_api));
}
int main(int argc,char *const *argv){
int pp_level_max;
int pp_level;
int pp_inc;
int i,j;
ogg_packet op;
FILE *infile = stdin;
int frames = 0;
int dropped = 0;
#ifdef _WIN32 /* We need to set stdin/stdout to binary mode. Damn windows. */
/* Beware the evil ifdef. We avoid these where we can, but this one we
cannot. Don't add any more, you'll probably go to hell if you do. */
_setmode( _fileno( stdin ), _O_BINARY );
#endif
/* open the input file if any */
if(argc==2){
infile=fopen(argv[1],"rb");
if(infile==NULL){
fprintf(stderr,"Unable to open '%s' for playback.\n", argv[1]);
exit(1);
}
}
if(argc>2){
usage();
exit(1);
}
/* start up Ogg stream synchronization layer */
ogg_sync_init(&oy);
/* init supporting Vorbis structures needed in header parsing */
vorbis_info_init(&vi);
vorbis_comment_init(&vc);
/* init supporting Theora structures needed in header parsing */
th_comment_init(&tc);
th_info_init(&ti);
/* Ogg file open; parse the headers */
/* Only interested in Vorbis/Theora streams */
while(!stateflag){
int ret=buffer_data(infile,&oy);
if(ret==0)break;
while(ogg_sync_pageout(&oy,&og)>0){
ogg_stream_state test;
/* is this a mandated initial header? If not, stop parsing */
if(!ogg_page_bos(&og)){
/* don't leak the page; get it into the appropriate stream */
queue_page(&og);
stateflag=1;
break;
}
ogg_stream_init(&test,ogg_page_serialno(&og));
ogg_stream_pagein(&test,&og);
ogg_stream_packetout(&test,&op);
/* identify the codec: try theora */
if(!theora_p && th_decode_headerin(&ti,&tc,&ts,&op)>=0){
/* it is theora */
memcpy(&to,&test,sizeof(test));
theora_p=1;
}else if(!vorbis_p && vorbis_synthesis_headerin(&vi,&vc,&op)>=0){
/* it is vorbis */
memcpy(&vo,&test,sizeof(test));
vorbis_p=1;
}else{
/* whatever it is, we don't care about it */
ogg_stream_clear(&test);
}
}
/* fall through to non-bos page parsing */
}
/* we're expecting more header packets. */
while((theora_p && theora_p<3) || (vorbis_p && vorbis_p<3)){
int ret;
/* look for further theora headers */
while(theora_p && (theora_p<3) && (ret=ogg_stream_packetout(&to,&op))){
if(ret<0){
fprintf(stderr,"Error parsing Theora stream headers; "
"corrupt stream?\n");
exit(1);
}
if(!th_decode_headerin(&ti,&tc,&ts,&op)){
fprintf(stderr,"Error parsing Theora stream headers; "
"corrupt stream?\n");
exit(1);
}
theora_p++;
}
/* look for more vorbis header packets */
while(vorbis_p && (vorbis_p<3) && (ret=ogg_stream_packetout(&vo,&op))){
if(ret<0){
fprintf(stderr,"Error parsing Vorbis stream headers; corrupt stream?\n");
exit(1);
}
if(vorbis_synthesis_headerin(&vi,&vc,&op)){
fprintf(stderr,"Error parsing Vorbis stream headers; corrupt stream?\n");
exit(1);
}
vorbis_p++;
if(vorbis_p==3)break;
}
/* The header pages/packets will arrive before anything else we
care about, or the stream is not obeying spec */
if(ogg_sync_pageout(&oy,&og)>0){
queue_page(&og); /* demux into the appropriate stream */
}else{
int ret=buffer_data(infile,&oy); /* someone needs more data */
if(ret==0){
fprintf(stderr,"End of file while searching for codec headers.\n");
exit(1);
}
}
}
/* and now we have it all. initialize decoders */
if(theora_p){
td=th_decode_alloc(&ti,ts);
printf("Ogg logical stream %lx is Theora %dx%d %.02f fps",
to.serialno,ti.pic_width,ti.pic_height,
(double)ti.fps_numerator/ti.fps_denominator);
px_fmt=ti.pixel_fmt;
switch(ti.pixel_fmt){
case TH_PF_420: printf(" 4:2:0 video\n"); break;
case TH_PF_422: printf(" 4:2:2 video\n"); break;
case TH_PF_444: printf(" 4:4:4 video\n"); break;
case TH_PF_RSVD:
default:
printf(" video\n (UNKNOWN Chroma sampling!)\n");
break;
}
if(ti.pic_width!=ti.frame_width || ti.pic_height!=ti.frame_height)
printf(" Frame content is %dx%d with offset (%d,%d).\n",
ti.frame_width, ti.frame_height, ti.pic_x, ti.pic_y);
report_colorspace(&ti);
dump_comments(&tc);
th_decode_ctl(td,TH_DECCTL_GET_PPLEVEL_MAX,&pp_level_max,
sizeof(pp_level_max));
pp_level=pp_level_max;
th_decode_ctl(td,TH_DECCTL_SET_PPLEVEL,&pp_level,sizeof(pp_level));
pp_inc=0;
/*{
int arg = 0xffff;
th_decode_ctl(td,TH_DECCTL_SET_TELEMETRY_MBMODE,&arg,sizeof(arg));
th_decode_ctl(td,TH_DECCTL_SET_TELEMETRY_MV,&arg,sizeof(arg));
th_decode_ctl(td,TH_DECCTL_SET_TELEMETRY_QI,&arg,sizeof(arg));
arg=10;
th_decode_ctl(td,TH_DECCTL_SET_TELEMETRY_BITS,&arg,sizeof(arg));
}*/
}else{
/* tear down the partial theora setup */
th_info_clear(&ti);
th_comment_clear(&tc);
}
th_setup_free(ts);
if(vorbis_p){
vorbis_synthesis_init(&vd,&vi);
vorbis_block_init(&vd,&vb);
fprintf(stderr,"Ogg logical stream %lx is Vorbis %d channel %ld Hz audio.\n",
vo.serialno,vi.channels,vi.rate);
}else{
/* tear down the partial vorbis setup */
vorbis_info_clear(&vi);
vorbis_comment_clear(&vc);
}
/* open audio */
if(vorbis_p)open_audio();
/* open video */
if(theora_p)open_video();
/* install signal handler as SDL clobbered the default */
signal (SIGINT, sigint_handler);
/* on to the main decode loop. We assume in this example that audio
and video start roughly together, and don't begin playback until
we have a start frame for both. This is not necessarily a valid
assumption in Ogg A/V streams! It will always be true of the
example_encoder (and most streams) though. */
stateflag=0; /* playback has not begun */
while(!got_sigint){
/* we want a video and audio frame ready to go at all times. If
we have to buffer incoming, buffer the compressed data (ie, let
ogg do the buffering) */
while(vorbis_p && !audiobuf_ready){
int ret;
float **pcm;
/* if there's pending, decoded audio, grab it */
if((ret=vorbis_synthesis_pcmout(&vd,&pcm))>0){
int count=audiobuf_fill/2;
int maxsamples=(audiofd_fragsize-audiobuf_fill)/2/vi.channels;
for(i=0;i<ret && i<maxsamples;i++)
for(j=0;j<vi.channels;j++){
int val=rint(pcm[j][i]*32767.f);
if(val>32767)val=32767;
if(val<-32768)val=-32768;
audiobuf[count++]=val;
}
vorbis_synthesis_read(&vd,i);
audiobuf_fill+=i*vi.channels*2;
if(audiobuf_fill==audiofd_fragsize)audiobuf_ready=1;
if(vd.granulepos>=0)
audiobuf_granulepos=vd.granulepos-ret+i;
else
audiobuf_granulepos+=i;
}else{
/* no pending audio; is there a pending packet to decode? */
if(ogg_stream_packetout(&vo,&op)>0){
if(vorbis_synthesis(&vb,&op)==0) /* test for success! */
vorbis_synthesis_blockin(&vd,&vb);
}else /* we need more data; break out to suck in another page */
break;
}
}
while(theora_p && !videobuf_ready){
/* theora is one in, one out... */
if(ogg_stream_packetout(&to,&op)>0){
if(pp_inc){
pp_level+=pp_inc;
th_decode_ctl(td,TH_DECCTL_SET_PPLEVEL,&pp_level,
sizeof(pp_level));
pp_inc=0;
}
/*HACK: This should be set after a seek or a gap, but we might not have
a granulepos for the first packet (we only have them for the last
packet on a page), so we just set it as often as we get it.
To do this right, we should back-track from the last packet on the
page and compute the correct granulepos for the first packet after
a seek or a gap.*/
if(op.granulepos>=0){
th_decode_ctl(td,TH_DECCTL_SET_GRANPOS,&op.granulepos,
sizeof(op.granulepos));
}
if(th_decode_packetin(td,&op,&videobuf_granulepos)==0){
videobuf_time=th_granule_time(td,videobuf_granulepos);
frames++;
/* is it already too old to be useful? This is only actually
useful cosmetically after a SIGSTOP. Note that we have to
decode the frame even if we don't show it (for now) due to
keyframing. Soon enough libtheora will be able to deal
with non-keyframe seeks. */
if(videobuf_time>=get_time())
videobuf_ready=1;
else{
/*If we are too slow, reduce the pp level.*/
pp_inc=pp_level>0?-1:0;
dropped++;
}
}
}else
break;
}
if(!videobuf_ready && !audiobuf_ready && feof(infile))break;
if(!videobuf_ready || !audiobuf_ready){
/* no data yet for somebody. Grab another page */
buffer_data(infile,&oy);
while(ogg_sync_pageout(&oy,&og)>0){
queue_page(&og);
}
}
/* If playback has begun, top audio buffer off immediately. */
if(stateflag) audio_write_nonblocking();
/* are we at or past time for this video frame? */
if(stateflag && videobuf_ready && videobuf_time<=get_time()){
video_write();
videobuf_ready=0;
}
if(stateflag &&
(audiobuf_ready || !vorbis_p) &&
(videobuf_ready || !theora_p) &&
!got_sigint){
/* we have an audio frame ready (which means the audio buffer is
full), it's not time to play video, so wait until one of the
audio buffer is ready or it's near time to play video */
/* set up select wait on the audiobuffer and a timeout for video */
struct timeval timeout;
fd_set writefs;
fd_set empty;
int n=0;
FD_ZERO(&writefs);
FD_ZERO(&empty);
if(audiofd>=0){
FD_SET(audiofd,&writefs);
n=audiofd+1;
}
if(theora_p){
double tdiff;
long milliseconds;
tdiff=videobuf_time-get_time();
/*If we have lots of extra time, increase the post-processing level.*/
if(tdiff>ti.fps_denominator*0.25/ti.fps_numerator){
pp_inc=pp_level<pp_level_max?1:0;
}
else if(tdiff<ti.fps_denominator*0.05/ti.fps_numerator){
pp_inc=pp_level>0?-1:0;
}
milliseconds=tdiff*1000-5;
if(milliseconds>500)milliseconds=500;
if(milliseconds>0){
timeout.tv_sec=milliseconds/1000;
timeout.tv_usec=(milliseconds%1000)*1000;
n=select(n,&empty,&writefs,&empty,&timeout);
if(n)audio_calibrate_timer(0);
}
}else{
select(n,&empty,&writefs,&empty,NULL);
}
}
/* if our buffers either don't exist or are ready to go,
we can begin playback */
if((!theora_p || videobuf_ready) &&
(!vorbis_p || audiobuf_ready))stateflag=1;
/* same if we've run out of input */
if(feof(infile))stateflag=1;
}
/* tear it all down */
audio_close();
SDL_Quit();
if(vorbis_p){
ogg_stream_clear(&vo);
vorbis_block_clear(&vb);
vorbis_dsp_clear(&vd);
vorbis_comment_clear(&vc);
vorbis_info_clear(&vi);
}
if(theora_p){
ogg_stream_clear(&to);
th_decode_free(td);
th_comment_clear(&tc);
th_info_clear(&ti);
}
ogg_sync_clear(&oy);
if(infile && infile!=stdin)fclose(infile);
fprintf(stderr,
"\r \r");
fprintf(stderr, "%d frames", frames);
if (dropped) fprintf(stderr, " (%d dropped)", dropped);
fprintf(stderr, "\n");
fprintf(stderr, "\nDone.\n");
return(0);
}
TheoraDecoder::TheoraVideoTrack::~TheoraVideoTrack() {
th_decode_free(_theoraDecode);
_surface.free();
_displaySurface.setPixels(0);
}
void VideoClip_Theora::_executeSeek()
{
#if _DEBUG
log(this->name + " [seek]: seeking to frame " + str(this->seekFrame));
#endif
int frame = 0;
float time = this->seekFrame / getFps();
this->timer->seek(time);
bool paused = this->timer->isPaused();
if (!paused)
{
this->timer->pause(); // pause until seeking is done
}
this->endOfFile = false;
this->restarted = false;
this->_resetFrameQueue();
// reset the video decoder.
ogg_stream_reset(&this->info.TheoraStreamState);
th_decode_free(this->info.TheoraDecoder);
this->info.TheoraDecoder = th_decode_alloc(&this->info.TheoraInfo, this->info.TheoraSetup);
Mutex::ScopeLock audioMutexLock;
if (this->audioInterface != NULL)
{
audioMutexLock.acquire(this->audioMutex);
ogg_stream_reset(&this->info.VorbisStreamState);
vorbis_synthesis_restart(&this->info.VorbisDSPState);
this->destroyAllAudioPackets();
}
// first seek to desired frame, then figure out the location of the
// previous key frame and seek to it.
// then by setting the correct time, the decoder will skip N frames untill
// we get the frame we want.
frame = (int)this->_seekPage(this->seekFrame, 1); // find the key frame nearest to the target frame
#ifdef _DEBUG
// log(mName + " [seek]: nearest key frame for frame " + str(mSeekFrame) + " is frame: " + str(frame));
#endif
this->_seekPage(std::max(0, frame - 1), 0);
ogg_packet opTheora;
ogg_int64_t granulePos;
bool granuleSet = false;
if (frame <= 1)
{
if (this->info.TheoraInfo.version_major == 3 && this->info.TheoraInfo.version_minor == 2 && this->info.TheoraInfo.version_subminor == 0)
{
granulePos = 0;
}
else
{
granulePos = 1; // because of difference in granule interpretation in theora streams 3.2.0 and newer ones
}
th_decode_ctl(this->info.TheoraDecoder, TH_DECCTL_SET_GRANPOS, &granulePos, sizeof(granulePos));
granuleSet = true;
}
// now that we've found the key frame that preceeds our desired frame, lets keep on decoding frames until we
// reach our target frame.
int status = 0;
while (this->seekFrame != 0)
{
if (ogg_stream_packetout(&this->info.TheoraStreamState, &opTheora) > 0)
{
if (!granuleSet)
{
// theora decoder requires to set the granule pos after seek to be able to determine the current frame
if (opTheora.granulepos < 0)
{
continue; // ignore prev delta frames until we hit a key frame
}
th_decode_ctl(this->info.TheoraDecoder, TH_DECCTL_SET_GRANPOS, &opTheora.granulepos, sizeof(opTheora.granulepos));
granuleSet = true;
}
status = th_decode_packetin(this->info.TheoraDecoder, &opTheora, &granulePos);
if (status != 0 && status != TH_DUPFRAME)
{
continue;
}
frame = (int)th_granule_frame(this->info.TheoraDecoder, granulePos);
if (frame >= this->seekFrame - 1)
{
break;
}
}
else if (!this->_readData())
{
log(this->name + " [seek]: fineseeking failed, _readData failed!");
return;
}
}
#ifdef _DEBUG
// log(mName + " [seek]: fineseeked to frame " + str(frame + 1) + ", requested: " + str(mSeekFrame));
#endif
if (this->audioInterface != NULL)
{
// read audio data until we reach a timeStamp. this usually takes only one iteration, but just in case let's
// wrap it in a loop
float timeStamp = 0.0f;
while (true)
{
timeStamp = this->_decodeAudio();
if (timeStamp >= 0)
{
break;
}
this->_readData();
}
float rate = (float)this->audioFrequency * this->audioChannelsCount;
float queuedTime = this->getAudioPacketQueueLength();
int trimmedCount = 0;
// at this point there are only 2 possibilities: either we have too much packets and we have to delete
// the first N ones, or we don't have enough, so let's fill the gap with silence.
if (time > timeStamp - queuedTime)
{
while (this->audioPacketQueue != NULL)
{
if (time <= timeStamp - queuedTime + this->audioPacketQueue->samplesCount / rate)
{
trimmedCount = (int)((timeStamp - queuedTime + this->audioPacketQueue->samplesCount / rate - time) * rate);
if (this->audioPacketQueue->samplesCount - trimmedCount <= 0)
{
this->destroyAudioPacket(this->popAudioPacket()); // if there's no data to be left, just destroy it
}
else
{
for (int i = trimmedCount, j = 0; i < this->audioPacketQueue->samplesCount; ++i, ++j)
{
this->audioPacketQueue->pcmData[j] = this->audioPacketQueue->pcmData[i];
}
this->audioPacketQueue->samplesCount -= trimmedCount;
}
break;
}
queuedTime -= this->audioPacketQueue->samplesCount / rate;
this->destroyAudioPacket(this->popAudioPacket());
}
}
// expand the first packet with silence.
else if (this->audioPacketQueue != NULL)
{
int i = 0;
int j = 0;
int missingCount = (int)((timeStamp - queuedTime - time) * rate);
if (missingCount > 0)
{
float* samples = new float[missingCount + this->audioPacketQueue->samplesCount];
if (missingCount > 0)
{
memset(samples, 0, missingCount * sizeof(float));
}
for (j = 0; i < missingCount + this->audioPacketQueue->samplesCount; ++i, ++j)
{
samples[i] = this->audioPacketQueue->pcmData[j];
}
delete[] this->audioPacketQueue->pcmData;
this->audioPacketQueue->pcmData = samples;
}
}
this->lastDecodedFrameNumber = this->seekFrame;
this->readAudioSamples = (unsigned int)(timeStamp * this->audioFrequency);
audioMutexLock.release();
}
if (!paused)
{
this->timer->play();
}
this->seekFrame = -1;
}