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ffplay: detect when the created overlay buffers are not valid for the wanted overlay height

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Fixes cases when the picture height was bigger than the maximum supported
overlay height...

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2013-05-29 23:21:14 +02:00
parent 87917a3283
commit 30d724bdfd
1 changed files with 3 additions and 1 deletions
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4
ffplay.c
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@ -1504,6 +1504,7 @@ display:
static void alloc_picture(VideoState *is)
{
VideoPicture *vp;
int64_t bufferdiff;
vp = &is->pictq[is->pictq_windex];
@ -1515,7 +1516,8 @@ static void alloc_picture(VideoState *is)
vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
SDL_YV12_OVERLAY,
screen);
if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
bufferdiff = vp->bmp ? FFMAX(vp->bmp->pixels[0], vp->bmp->pixels[1]) - FFMIN(vp->bmp->pixels[0], vp->bmp->pixels[1]) : 0;
if (!vp->bmp || vp->bmp->pitches[0] < vp->width || bufferdiff < vp->height * vp->bmp->pitches[0]) {
/* SDL allocates a buffer smaller than requested if the video
* overlay hardware is unable to support the requested size. */
fprintf(stderr, "Error: the video system does not support an image\n"