mirror of https://git.ffmpeg.org/ffmpeg.git
avcodec/mpeg12dec: check for overread in mpeg1_fast_decode_block_inter()
No speedloss meassured Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -335,7 +335,7 @@ static inline int mpeg1_fast_decode_block_inter(MpegEncContext *s, int16_t *bloc
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}
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block[j] = level;
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if (((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)
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if (((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF || i >= 64)
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break;
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UPDATE_CACHE(re, &s->gb);
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}
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