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godot/modules/theora/video_stream_theora.cpp
Rémi Verschelde d8223ffa75 Welcome in 2017, dear changelog reader! 
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!

(cherry picked from commit c7bc44d5ad)
2017-01-12 19:15:30 +01:00

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/*************************************************************************/
/* video_stream_theora.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "video_stream_theora.h"
#include "globals.h"
#include "os/os.h"
#include "yuv2rgb.h"
int VideoStreamPlaybackTheora:: buffer_data() {
char *buffer=ogg_sync_buffer(&oy,4096);
#ifdef THEORA_USE_THREAD_STREAMING
int read;
do {
thread_sem->post();
read = MIN(ring_buffer.data_left(),4096);
if (read) {
ring_buffer.read((uint8_t*)buffer,read);
ogg_sync_wrote(&oy,read);
} else {
OS::get_singleton()->delay_usec(100);
}
} while(read==0);
return read;
#else
int bytes=file->get_buffer((uint8_t*)buffer, 4096);
ogg_sync_wrote(&oy,bytes);
return(bytes);
#endif
}
int VideoStreamPlaybackTheora::queue_page(ogg_page *page){
if(theora_p) {
ogg_stream_pagein(&to,page);
if (to.e_o_s)
theora_eos=true;
}
if(vorbis_p) {
ogg_stream_pagein(&vo,page);
if (vo.e_o_s)
vorbis_eos=true;
}
return 0;
}
void VideoStreamPlaybackTheora::video_write(void){
th_ycbcr_buffer yuv;
th_decode_ycbcr_out(td,yuv);
/*
int y_offset, uv_offset;
y_offset=(ti.pic_x&~1)+yuv[0].stride*(ti.pic_y&~1);
{
int pixels = size.x * size.y;
frame_data.resize(pixels * 4);
DVector<uint8_t>::Write w = frame_data.write();
char* dst = (char*)w.ptr();
int p = 0;
for (int i=0; i<size.y; i++) {
char *in_y = (char *)yuv[0].data+y_offset+yuv[0].stride*i;
char *out = dst + (int)size.x * 4 * i;
for (int j=0;j<size.x;j++) {
dst[p++] = in_y[j];
dst[p++] = in_y[j];
dst[p++] = in_y[j];
dst[p++] = 255;
};
}
format = Image::FORMAT_RGBA;
}
// */
//*
int pitch = 4;
frame_data.resize(size.x * size.y * pitch);
{
DVector<uint8_t>::Write w = frame_data.write();
char* dst = (char*)w.ptr();
//uv_offset=(ti.pic_x/2)+(yuv[1].stride)*(ti.pic_y/2);
if (px_fmt == TH_PF_444) {
yuv444_2_rgb8888((uint8_t*)dst, (uint8_t*)yuv[0].data, (uint8_t*)yuv[1].data, (uint8_t*)yuv[2].data, size.x, size.y, yuv[0].stride, yuv[1].stride, size.x<<2, 0);
} else if (px_fmt == TH_PF_422) {
yuv422_2_rgb8888((uint8_t*)dst, (uint8_t*)yuv[0].data, (uint8_t*)yuv[1].data, (uint8_t*)yuv[2].data, size.x, size.y, yuv[0].stride, yuv[1].stride, size.x<<2, 0);
} else if (px_fmt == TH_PF_420) {
yuv420_2_rgb8888((uint8_t*)dst, (uint8_t*)yuv[0].data, (uint8_t*)yuv[2].data, (uint8_t*)yuv[1].data, size.x, size.y, yuv[0].stride, yuv[1].stride, size.x<<2, 0);
};
format = Image::FORMAT_RGBA;
}
Image img(size.x,size.y,0,Image::FORMAT_RGBA,frame_data); //zero copy image creation
texture->set_data(img); //zero copy send to visual server
/*
if (px_fmt == TH_PF_444) {
int pitch = 3;
frame_data.resize(size.x * size.y * pitch);
DVector<uint8_t>::Write w = frame_data.write();
char* dst = (char*)w.ptr();
for(int i=0;i<size.y;i++) {
char *in_y = (char *)yuv[0].data+y_offset+yuv[0].stride*i;
char *out = dst + (int)size.x * pitch * i;
char *in_u = (char *)yuv[1].data+uv_offset+yuv[1].stride*i;
char *in_v = (char *)yuv[2].data+uv_offset+yuv[2].stride*i;
for (int j=0;j<size.x;j++) {
out[j*3+0] = in_y[j];
out[j*3+1] = in_u[j];
out[j*3+2] = in_v[j];
};
}
format = Image::FORMAT_YUV_444;
} else {
int div;
if (px_fmt!=TH_PF_422) {
div = 2;
}
bool rgba = true;
if (rgba) {
int pitch = 4;
frame_data.resize(size.x * size.y * pitch);
DVector<uint8_t>::Write w = frame_data.write();
char* dst = (char*)w.ptr();
uv_offset=(ti.pic_x/2)+(yuv[1].stride)*(ti.pic_y / div);
for(int i=0;i<size.y;i++) {
char *in_y = (char *)yuv[0].data+y_offset+yuv[0].stride*i;
char *in_u = (char *)yuv[1].data+uv_offset+yuv[1].stride*(i/div);
char *in_v = (char *)yuv[2].data+uv_offset+yuv[2].stride*(i/div);
uint8_t *out = (uint8_t*)dst + (int)size.x * pitch * i;
int ofs = 0;
for (int j=0;j<size.x;j++) {
uint8_t y, u, v;
y = in_y[j];
u = in_u[j/2];
v = in_v[j/2];
int32_t r = Math::fast_ftoi(1.164 * (y - 16) + 1.596 * (v - 128));
int32_t g = Math::fast_ftoi(1.164 * (y - 16) - 0.813 * (v - 128) - 0.391 * (u - 128));
int32_t b = Math::fast_ftoi(1.164 * (y - 16) + 2.018 * (u - 128));
out[ofs++] = CLAMP(r, 0, 255);
out[ofs++] = CLAMP(g, 0, 255);
out[ofs++] = CLAMP(b, 0, 255);
out[ofs++] = 255;
}
}
format = Image::FORMAT_RGBA;
} else {
int pitch = 2;
frame_data.resize(size.x * size.y * pitch);
DVector<uint8_t>::Write w = frame_data.write();
char* dst = (char*)w.ptr();
uv_offset=(ti.pic_x/2)+(yuv[1].stride)*(ti.pic_y / div);
for(int i=0;i<size.y;i++) {
char *in_y = (char *)yuv[0].data+y_offset+yuv[0].stride*i;
char *out = dst + (int)size.x * pitch * i;
for (int j=0;j<size.x;j++)
out[j*2] = in_y[j];
char *in_u = (char *)yuv[1].data+uv_offset+yuv[1].stride*(i/div);
char *in_v = (char *)yuv[2].data+uv_offset+yuv[2].stride*(i/div);
for (int j=0;j<(int)size.x>>1;j++) {
out[j*4+1] = in_u[j];
out[j*4+3] = in_v[j];
}
}
format = Image::FORMAT_YUV_422;
};
};
// */
frames_pending = 1;
}
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;
};
void VideoStreamPlaybackTheora::set_file(const String& p_file) {
ERR_FAIL_COND(playing);
ogg_packet op;
th_setup_info *ts = NULL;
file_name = p_file;
if (file) {
memdelete(file);
}
file = FileAccess::open(p_file, FileAccess::READ);
ERR_FAIL_COND(!file);
#ifdef THEORA_USE_THREAD_STREAMING
thread_exit=false;
thread_eof=false;
//pre-fill buffer
int to_read = ring_buffer.space_left();
int read = file->get_buffer(read_buffer.ptr(),to_read);
ring_buffer.write(read_buffer.ptr(),read);
thread=Thread::create(_streaming_thread,this);
#endif
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);
theora_eos=false;
vorbis_eos=false;
/* Ogg file open; parse the headers */
/* Only interested in Vorbis/Theora streams */
int stateflag = 0;
int audio_track_skip=audio_track;
while(!stateflag){
int ret=buffer_data();
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 */
copymem(&to,&test,sizeof(test));
theora_p=1;
}else if(!vorbis_p && vorbis_synthesis_headerin(&vi,&vc,&op)>=0){
/* it is vorbis */
if (audio_track_skip) {
vorbis_info_clear(&vi);
vorbis_comment_clear(&vc);
ogg_stream_clear(&test);
vorbis_info_init(&vi);
vorbis_comment_init(&vc);
audio_track_skip--;
} else {
copymem(&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");
clear();
return;
}
if(!th_decode_headerin(&ti,&tc,&ts,&op)){
fprintf(stderr,"Error parsing Theora stream headers; "
"corrupt stream?\n");
clear();
return;
}
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");
clear();
return;
}
ret = vorbis_synthesis_headerin(&vi,&vc,&op);
if(ret){
fprintf(stderr,"Error parsing Vorbis stream headers; corrupt stream?\n");
clear();
return;
}
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(); /* someone needs more data */
if(ret==0){
fprintf(stderr,"End of file while searching for codec headers.\n");
clear();
return;
}
}
}
/* 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);
th_decode_ctl(td,TH_DECCTL_GET_PPLEVEL_MAX,&pp_level_max,
sizeof(pp_level_max));
pp_level=pp_level_max;
pp_level=0;
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));
}*/
int w;
int h;
w=(ti.pic_x+ti.frame_width+1&~1)-(ti.pic_x&~1);
h=(ti.pic_y+ti.frame_height+1&~1)-(ti.pic_y&~1);
size.x = w;
size.y = h;
texture->create(w,h,Image::FORMAT_RGBA,Texture::FLAG_FILTER|Texture::FLAG_VIDEO_SURFACE);
}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);
//_setup(vi.channels, vi.rate);
}else{
/* tear down the partial vorbis setup */
vorbis_info_clear(&vi);
vorbis_comment_clear(&vc);
}
playing = false;
buffering=true;
time=0;
audio_frames_wrote=0;
};
float VideoStreamPlaybackTheora::get_time() const {
//print_line("total: "+itos(get_total())+" todo: "+itos(get_todo()));
//return MAX(0,time-((get_total())/(float)vi.rate));
return time-AudioServer::get_singleton()->get_output_delay()-delay_compensation;//-((get_total())/(float)vi.rate);
};
Ref<Texture> VideoStreamPlaybackTheora::get_texture() {
return texture;
}
void VideoStreamPlaybackTheora::update(float p_delta) {
if (!file)
return;
if (!playing || paused) {
//printf("not playing\n");
return;
};
#ifdef THEORA_USE_THREAD_STREAMING
thread_sem->post();
#endif
//double ctime =AudioServer::get_singleton()->get_mix_time();
//print_line("play "+rtos(p_delta));
time+=p_delta;
if (videobuf_time>get_time()) {
return; //no new frames need to be produced
}
bool frame_done=false;
bool audio_done=!vorbis_p;
while (!frame_done || (!audio_done && !vorbis_eos)) {
//a frame needs to be produced
ogg_packet op;
bool no_theora=false;
while (vorbis_p) {
int ret;
float **pcm;
bool buffer_full=false;
/* if there's pending, decoded audio, grab it */
if ((ret=vorbis_synthesis_pcmout(&vd,&pcm))>0) {
const int AUXBUF_LEN=4096;
int to_read = ret;
int16_t aux_buffer[AUXBUF_LEN];
while(to_read) {
int m = MIN(AUXBUF_LEN/vi.channels,to_read);
int count = 0;
for(int j=0;j<m;j++){
for(int i=0;i<vi.channels;i++){
int val=Math::fast_ftoi(pcm[i][j]*32767.f);
if(val>32767)val=32767;
if(val<-32768)val=-32768;
aux_buffer[count++] = val;
}
}
if (mix_callback) {
int mixed = mix_callback(mix_udata,aux_buffer,m);
to_read-=mixed;
if (mixed!=m) { //could mix no more
buffer_full=true;
break;
}
} else {
to_read-=m; //just pretend we sent the audio
}
}
int tr = vorbis_synthesis_read(&vd, ret-to_read);
if (vd.granulepos>=0) {
// print_line("wrote: "+itos(audio_frames_wrote)+" gpos: "+itos(vd.granulepos));
}
//print_line("mix audio!");
audio_frames_wrote+=ret-to_read;
//print_line("AGP: "+itos(vd.granulepos)+" added "+itos(ret-to_read));
} 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 */
//printf("need moar data\n");
break;
};
}
audio_done = videobuf_time < (audio_frames_wrote/float(vi.rate));
if (buffer_full)
break;
}
while(theora_p && !frame_done){
/* theora is one in, one out... */
if(ogg_stream_packetout(&to,&op)>0){
if(false && 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));
}
ogg_int64_t videobuf_granulepos;
if(th_decode_packetin(td,&op,&videobuf_granulepos)==0){
videobuf_time=th_granule_time(td,videobuf_granulepos);
//printf("frame time %f, play time %f, ready %i\n", (float)videobuf_time, get_time(), videobuf_ready);
/* 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()) {
frame_done=true;
} else{
/*If we are too slow, reduce the pp level.*/
pp_inc=pp_level>0?-1:0;
}
} else {
}
} else {
no_theora=true;
break;
}
}
//print_line("no theora: "+itos(no_theora)+" theora eos: "+itos(theora_eos)+" frame done "+itos(frame_done));
#ifdef THEORA_USE_THREAD_STREAMING
if (file && thread_eof && no_theora && theora_eos && ring_buffer.data_left()==0) {
#else
if (file && /*!videobuf_ready && */ no_theora && theora_eos) {
#endif
printf("video done, stopping\n");
stop();
return;
};
#if 0
if (!videobuf_ready || audio_todo > 0){
/* no data yet for somebody. Grab another page */
buffer_data();
while(ogg_sync_pageout(&oy,&og)>0){
queue_page(&og);
}
}
#else
if (!frame_done || !audio_done){
//what's the point of waiting for audio to grab a page?
buffer_data();
while(ogg_sync_pageout(&oy,&og)>0){
queue_page(&og);
}
}
#endif
/* 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(videobuf_ready && videobuf_time<=get_time()){
//video_write();
//videobuf_ready=0;
} else {
//printf("frame at %f not ready (time %f), ready %i\n", (float)videobuf_time, get_time(), videobuf_ready);
}
float 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;
}
}
video_write();
};
void VideoStreamPlaybackTheora::play() {
if (!playing)
time=0;
else {
stop();
}
playing = true;
delay_compensation=Globals::get_singleton()->get("audio/video_delay_compensation_ms");
delay_compensation/=1000.0;
};
void VideoStreamPlaybackTheora::stop() {
if (playing) {
clear();
set_file(file_name); //reset
}
playing = false;
time=0;
};
bool VideoStreamPlaybackTheora::is_playing() const {
return playing;
};
void VideoStreamPlaybackTheora::set_paused(bool p_paused) {
paused=p_paused;
//pau = !p_paused;
};
bool VideoStreamPlaybackTheora::is_paused(bool p_paused) const {
return paused;
};
void VideoStreamPlaybackTheora::set_loop(bool p_enable) {
};
bool VideoStreamPlaybackTheora::has_loop() const {
return false;
};
float VideoStreamPlaybackTheora::get_length() const {
return 0;
};
String VideoStreamPlaybackTheora::get_stream_name() const {
return "";
};
int VideoStreamPlaybackTheora::get_loop_count() const {
return 0;
};
float VideoStreamPlaybackTheora::get_pos() const {
return get_time();
};
void VideoStreamPlaybackTheora::seek_pos(float p_time) {
// no
};
void VideoStreamPlaybackTheora::set_mix_callback(AudioMixCallback p_callback,void *p_userdata) {
mix_callback=p_callback;
mix_udata=p_userdata;
}
int VideoStreamPlaybackTheora::get_channels() const{
return vi.channels;
}
void VideoStreamPlaybackTheora::set_audio_track(int p_idx) {
audio_track=p_idx;
}
int VideoStreamPlaybackTheora::get_mix_rate() const{
return vi.rate;
}
#ifdef THEORA_USE_THREAD_STREAMING
void VideoStreamPlaybackTheora::_streaming_thread(void *ud) {
VideoStreamPlaybackTheora *vs=(VideoStreamPlaybackTheora*)ud;
while(!vs->thread_exit) {
//just fill back the buffer
if (!vs->thread_eof) {
int to_read = vs->ring_buffer.space_left();
if (to_read) {
int read = vs->file->get_buffer(vs->read_buffer.ptr(),to_read);
vs->ring_buffer.write(vs->read_buffer.ptr(),read);
vs->thread_eof=vs->file->eof_reached();
}
}
vs->thread_sem->wait();
}
}
#endif
VideoStreamPlaybackTheora::VideoStreamPlaybackTheora() {
file = NULL;
theora_p = 0;
vorbis_p = 0;
videobuf_ready = 0;
playing = false;
frames_pending = 0;
videobuf_time = 0;
paused=false;
buffering=false;
texture = Ref<ImageTexture>( memnew(ImageTexture ));
mix_callback=NULL;
mix_udata=NULL;
audio_track=0;
delay_compensation=0;
audio_frames_wrote=0;
#ifdef THEORA_USE_THREAD_STREAMING
int rb_power = nearest_shift(RB_SIZE_KB*1024);
ring_buffer.resize(rb_power);
read_buffer.resize(RB_SIZE_KB*1024);
thread_sem=Semaphore::create();
thread=NULL;
thread_exit=false;
thread_eof=false;
#endif
};
VideoStreamPlaybackTheora::~VideoStreamPlaybackTheora() {
#ifdef THEORA_USE_THREAD_STREAMING
memdelete(thread_sem);
#endif
clear();
if (file)
memdelete(file);
};
RES ResourceFormatLoaderVideoStreamTheora::load(const String &p_path,const String& p_original_path, Error *r_error) {
if (r_error)
*r_error=ERR_FILE_CANT_OPEN;
VideoStreamTheora *stream = memnew(VideoStreamTheora);
stream->set_file(p_path);
if (r_error)
*r_error=OK;
return Ref<VideoStreamTheora>(stream);
}
void ResourceFormatLoaderVideoStreamTheora::get_recognized_extensions(List<String> *p_extensions) const {
p_extensions->push_back("ogm");
p_extensions->push_back("ogv");
}
bool ResourceFormatLoaderVideoStreamTheora::handles_type(const String& p_type) const {
return (p_type=="VideoStream" || p_type=="VideoStreamTheora");
}
String ResourceFormatLoaderVideoStreamTheora::get_resource_type(const String &p_path) const {
String exl=p_path.extension().to_lower();
if (exl=="ogm" || exl=="ogv")
return "VideoStreamTheora";
return "";
}
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