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rv10: always check image size not just in some cases.

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Fixes division by 0

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-11-15 02:16:56 +01:00
parent a3cb7f992f
commit caa2fa2c69
1 changed files with 2 additions and 1 deletions
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libavcodec/rv10.c
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@ -398,7 +398,8 @@ static int rv20_decode_picture_header(RVDecContext *rv)
if(s->avctx->debug & FF_DEBUG_PICT_INFO){ if(s->avctx->debug & FF_DEBUG_PICT_INFO){
av_log(s->avctx, AV_LOG_DEBUG, "F %d/%d\n", f, rpr_bits); av_log(s->avctx, AV_LOG_DEBUG, "F %d/%d\n", f, rpr_bits);
} }
} else if (av_image_check_size(s->width, s->height, 0, s->avctx) < 0) }
if (av_image_check_size(s->width, s->height, 0, s->avctx) < 0)
return AVERROR_INVALIDDATA; return AVERROR_INVALIDDATA;
mb_pos = ff_h263_decode_mba(s); mb_pos = ff_h263_decode_mba(s);