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vcr1: check if dimensions are supported, fix out of array accesses. 

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-11-17 20:17:22 +01:00
parent fb1ea777b3
commit 845724c82c
1 changed files with 4 additions and 0 deletions
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4
libavcodec/vcr1.c
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@ -50,6 +50,10 @@ static av_cold int vcr1_decode_init(AVCodecContext *avctx)
avctx->pix_fmt = AV_PIX_FMT_YUV410P;
if (avctx->width % 8 || avctx->height%4) {
av_log_ask_for_sample(avctx, "odd dimensions are not supported\n");
return AVERROR_PATCHWELCOME;
}
return 0;
}