static int
resizePlayer(ffmpegPlayer *me)
{
/* resizePlayer may be called before any size allocation */
int widget_w = AGWIDGET(me)->w > 0 ? AGWIDGET(me)->w : me->w;
int widget_h = AGWIDGET(me)->h > 0 ? AGWIDGET(me)->h : me->h;
if (me->flags & AG_FFMPEGPLAYER_KEEPRATIO) {
int film_w, film_h;
float aspect;
SDL_ffmpegGetVideoSize(me->file, &film_w, &film_h);
aspect = (float)film_h / film_w;
if (widget_w * aspect > widget_h) {
me->disp_w = SCALE_FLOOR((int)(widget_h / aspect));
me->disp_h = SCALE_FLOOR(widget_h);
} else {
me->disp_w = SCALE_FLOOR(widget_w);
me->disp_h = SCALE_FLOOR((int)(widget_w * aspect));
}
} else {
me->disp_w = SCALE_FLOOR(widget_w);
me->disp_h = SCALE_FLOOR(widget_h);
}
#ifndef USE_OVERLAY
for (int i = 0; i < FFMPEGPLAYER_BUFSIZE; i++) {
SDL_ffmpegVideoFrame *frame = me->videoFrame[i];
if (frame->surface != NULL)
SDL_FreeSurface(frame->surface);
frame->surface = SDL_CreateRGBSurface(SDL_HWSURFACE,
me->disp_w, me->disp_h, 24,
htonl(0xFF000000),
htonl(0x00FF0000),
htonl(0x0000FF00), 0x0);
if (frame->surface == NULL)
/* FIXME */
return -1;
SDL_ffmpegGetVideoFrame(me->file, frame);
}
me->curVideoFrame = 0;
#endif
return 0;
}
int main(int argc, char** argv) {
SDL_ffmpegFile* film;
int s;
SDL_ffmpegStream *str;
SDL_AudioSpec *specs;
int w,h;
int done = 0;
SDL_Surface *screen;
/* check if we got an argument */
if(argc < 2) {
printf("usage: \"%s\" \"filename\"\n", argv[0]);
return -1;
}
/* standard SDL initialization stuff */
if(SDL_Init(SDL_INIT_AUDIO|SDL_INIT_VIDEO|SDL_DOUBLEBUF) < 0) {
fprintf(stderr, "problem initializing SDL: %s\n", SDL_GetError());
return -1;
}
/* open file from arg[1] */
film = SDL_ffmpegOpen(argv[1]);
if(!film) {
printf("error opening file\n");
return -1;
}
/* print some info on detected stream to output */
for(s = 0; s<film->AStreams; s++) {
str = SDL_ffmpegGetAudioStream(film, s);
printf("Info on audiostream #%i:\n", s);
printf("\tChannels: %i\n", str->channels);
if(strlen(str->language)) printf("\tLanguage: %s\n", str->language);
printf("\tSampleRate: %i\n", str->sampleRate);
}
for(s = 0; s<film->VStreams; s++) {
str = SDL_ffmpegGetVideoStream(film, s);
printf("Info on videostream #%i:\n", s);
if(strlen(str->language)) printf("\tLanguage: %s\n", str->language);
printf("\tFrame: %ix%i\n", str->width, str->height);
printf("\tFrameRate: %.2ffps\n", 1.0 / (str->frameRate[0] / str->frameRate[1]));
}
/* select the streams you want to decode (example just uses 0 as a default) */
SDL_ffmpegSelectVideoStream(film, 0);
SDL_ffmpegSelectAudioStream(film, 0);
/* get the audiospec which fits the selected videostream, if no videostream */
/* is selected, default values are used (2 channel, 48Khz) */
specs = SDL_ffmpegGetAudioSpec(film, 512, audioCallback);
/* we get the size from our active video stream, if no active video stream */
/* exists, width and height are set to default values (320x240) */
SDL_ffmpegGetVideoSize(film, &w, &h);
/* Open the Video device */
screen = SDL_SetVideoMode(w, h, 32, SDL_DOUBLEBUF|SDL_HWSURFACE);
if(!screen) {
printf("Couldn't open video: %s\n", SDL_GetError());
return -1;
}
/* Open the Audio device */
if( SDL_OpenAudio(specs, 0) < 0 ) {
printf("Couldn't open audio: %s\n", SDL_GetError());
return -1;
}
/* we start our decode thread, this always tries to buffer in some frames */
/* so we can enjoy smooth playback */
SDL_ffmpegStartDecoding(film);
/* we unpause the audio so our audiobuffer gets read */
SDL_PauseAudio(0);
while( !done ) {
SDL_ffmpegVideoFrame* frame;
/* just some standard SDL event stuff */
SDL_Event event;
while(SDL_PollEvent(&event)) {
if(event.type == SDL_QUIT) {
done = 1;
break;
}
if(event.type == SDL_MOUSEBUTTONDOWN) {
int x,y;
int64_t time;
SDL_PumpEvents();
SDL_GetMouseState(&x, &y);
/* by clicking you turn on the stream, seeking to the percentage */
/* in time, based on the x-position you clicked on */
time = ((double)x / w) * SDL_ffmpegGetDuration(film);
/* we seek to time (milliseconds) */
SDL_ffmpegSeek(film, time);
/* by passing 0(false) as our second argument, we play the file */
/* passing a non-zero value would mean we pause our file */
SDL_ffmpegPause(film, 0);
}
}
/* we retrieve the current image from the file */
/* we get 0 if no file could be retrieved */
/* important! please note this call should be paired with SDL_ffmpegReleaseVideo */
frame = SDL_ffmpegGetVideoFrame(film);
if(frame) {
/* we got a frame, so we better show this one */
SDL_BlitSurface(frame->buffer, 0, screen, 0);
/* After releasing this frame, you can no longer use it. */
/* you should call this function every time you get a frame! */
SDL_ffmpegReleaseVideo(film, frame);
/* we flip the double buffered screen so we might actually see something */
SDL_Flip(screen);
}
/* we wish not to kill our poor cpu, so we give it some timeoff */
SDL_Delay(5);
}
/* after all is said and done, we should call this */
SDL_ffmpegFree(film);
/* the SDL_Quit function offcourse... */
SDL_Quit();
return 0;
}
static void *
drawVideoThread(void *data)
{
ffmpegPlayer *me = data;
AG_ObjectLock(me);
for (;;) {
SDL_ffmpegVideoFrame *frame = me->videoFrame[me->curVideoFrame];
if (!frame->ready) {
DEBUG("Video buffer underrun!");
SDL_ffmpegGetVideoFrame(me->file, frame);
}
uint64_t sync = getSync(me);
uint64_t pts = frame->pts;
if (pts >= sync) {
AG_ObjectUnlock(me);
/* condition variable waiting may be faster, test with 500mhz */
AG_Delay(pts - sync);
AG_ObjectLock(me);
if (me->file == NULL) {
/* FIXME */
break;
}
if (pts > getSync(me))
continue;
#ifdef USE_OVERLAY
if (frame->overlay != NULL) {
if (AG_WidgetVisible(me)) {
int frame_x = (AGWIDGET(me)->w - me->disp_w) / 2;
int frame_y = (AGWIDGET(me)->h - me->disp_h) / 2;
SDL_Rect rect = {
.x = AGWIDGET(me)->rView.x1 + frame_x,
.y = AGWIDGET(me)->rView.y1 + frame_y,
.w = me->disp_w,
.h = me->disp_h
};
SDL_DisplayYUVOverlay(frame->overlay, &rect);
}
}
#else
if (frame->surface != NULL) {
#ifdef USE_SDL_SHADOWSURFACE
if (me->surface != NULL)
AG_SDL_ShadowSurfaceFree(me->surface);
me->surface = AG_SDL_ShadowSurface(frame->surface);
#else
if (me->surface != NULL)
AG_SurfaceFree(me->surface);
me->surface = AG_SurfaceFromSDL(frame->surface);
#endif
if (me->surface == NULL) {
/* FIXME */
break;
}
AG_Redraw(AGWIDGET(me));
}
#endif
} else {
/* frame is skipped */
DEBUG("skip frame: %lums late", sync - frame->pts);
}
frame->ready = 0;
RR_INC(me->curVideoFrame, FFMPEGPLAYER_BUFSIZE);
/* wake up buffer-fill thread */
AG_CondSignal(&me->video_cond);
}
