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avcodec/ffv1dec: Test extradata_size instead of extradata for better robustness 

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-07-21 23:37:02 +02:00
parent 38cc5c298c
commit 697b2bbd54
1 changed files with 1 additions and 1 deletions
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2
libavcodec/ffv1dec.c
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@ -881,7 +881,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
if ((ret = ff_ffv1_common_init(avctx)) < 0)
return ret;
if (avctx->extradata && (ret = read_extra_header(f)) < 0)
if (avctx->extradata_size > 0 && (ret = read_extra_header(f)) < 0)
return ret;
if ((ret = ff_ffv1_init_slice_contexts(f)) < 0)