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lavd/sdl: allow to change window size

This commit is contained in:
Stefano Sabatini 2013-11-25 13:31:06 +01:00
parent 0464d272ff
commit b23dea27fd
1 changed files with 23 additions and 4 deletions
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27
libavdevice/sdl.c
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@ -124,11 +124,13 @@ static void compute_overlay_rect(AVFormatContext *s)
overlay_rect->y = (sdl->window_height - overlay_rect->h) / 2;
}
#define SDL_BASE_FLAGS (SDL_SWSURFACE|SDL_RESIZABLE)
static int event_thread(void *arg)
{
AVFormatContext *s = arg;
SDLContext *sdl = s->priv_data;
int flags = SDL_SWSURFACE | (sdl->window_fullscreen ? SDL_FULLSCREEN : 0);
int flags = SDL_BASE_FLAGS | (sdl->window_fullscreen ? SDL_FULLSCREEN : 0);
AVStream *st = s->streams[0];
AVCodecContext *encctx = st->codec;
@ -195,6 +197,22 @@ init_end:
case SDL_QUIT:
sdl->quit = 1;
break;
case SDL_VIDEORESIZE:
sdl->window_width = event.resize.w;
sdl->window_height = event.resize.h;
SDL_LockMutex(sdl->mutex);
sdl->surface = SDL_SetVideoMode(sdl->window_width, sdl->window_height, 24, SDL_BASE_FLAGS);
if (!sdl->surface) {
av_log(s, AV_LOG_ERROR, "Failed to set SDL video mode: %s\n", SDL_GetError());
sdl->quit = 1;
} else {
compute_overlay_rect(s);
}
SDL_UnlockMutex(sdl->mutex);
break;
default:
break;
}
@ -292,15 +310,15 @@ static int sdl_write_packet(AVFormatContext *s, AVPacket *pkt)
AVPicture pict;
int i;
if (sdl->quit)
if (sdl->quit) {
sdl_write_trailer(s);
return AVERROR(EIO);
}
avpicture_fill(&pict, pkt->data, encctx->pix_fmt, encctx->width, encctx->height);
SDL_LockMutex(sdl->mutex);
SDL_FillRect(sdl->surface, &sdl->surface->clip_rect,
SDL_MapRGB(sdl->surface->format, 0, 0, 0));
SDL_UnlockMutex(sdl->mutex);
SDL_LockYUVOverlay(sdl->overlay);
for (i = 0; i < 3; i++) {
sdl->overlay->pixels [i] = pict.data [i];
@ -312,6 +330,7 @@ static int sdl_write_packet(AVFormatContext *s, AVPacket *pkt)
SDL_UpdateRect(sdl->surface,
sdl->overlay_rect.x, sdl->overlay_rect.y,
sdl->overlay_rect.w, sdl->overlay_rect.h);
SDL_UnlockMutex(sdl->mutex);
return 0;
}