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vcr1dec: Check that there is sufficient input data.

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Fixes crash.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-12-28 19:05:16 +01:00
parent 11ca3416f9
commit 8e09482e4d
1 changed files with 5 additions and 0 deletions
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5
libavcodec/vcr1.c
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@ -56,6 +56,11 @@ static int decode_frame(AVCodecContext *avctx,
if(p->data[0])
avctx->release_buffer(avctx, p);
if(buf_size < 16 + avctx->height + avctx->width*avctx->height*5/8){
av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n");
return AVERROR(EINVAL);
}
p->reference= 0;
if(avctx->get_buffer(avctx, p) < 0){
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");