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avcodec/mpeg4videodec: Fix slice end detection in mpeg4_decode_studio_mb()

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2018-08-19 10:15:53 +02:00
parent 0c71c6d66f
commit 168d8d56bf
1 changed files with 8 additions and 0 deletions
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8
libavcodec/mpeg4videodec.c
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@ -1955,6 +1955,14 @@ static int mpeg4_decode_studio_mb(MpegEncContext *s, int16_t block_[12][64])
return SLICE_END;
}
//vcon-stp9L1.bits (first frame)
if (get_bits_left(&s->gb) == 0)
return SLICE_END;
//vcon-stp2L1.bits, vcon-stp3L1.bits, vcon-stp6L1.bits, vcon-stp7L1.bits, vcon-stp8L1.bits, vcon-stp10L1.bits (first frame)
if (get_bits_left(&s->gb) < 8U && show_bits(&s->gb, get_bits_left(&s->gb)) == 0)
return SLICE_END;
return SLICE_OK;
}