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avcodec/h263dec: Workaround H263 end padding bug

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Fixes: H263PaddingBugFixVID_6647.MOV

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-03-04 02:47:12 +01:00
parent b416517cce
commit ec6d043f8e
1 changed files with 11 additions and 0 deletions
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11
libavcodec/h263dec.c
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@ -319,6 +319,17 @@ static int decode_slice(MpegEncContext *s)
}
}
if (s->codec_id == AV_CODEC_ID_H263 &&
(s->workaround_bugs & FF_BUG_AUTODETECT) &&
get_bits_left(&s->gb) >= 8 &&
get_bits_left(&s->gb) < 300 &&
s->pict_type == AV_PICTURE_TYPE_I &&
show_bits(&s->gb, 8) == 0 &&
!s->data_partitioning) {
s->padding_bug_score += 32;
}
if (s->workaround_bugs & FF_BUG_AUTODETECT) {
if (s->padding_bug_score > -2 && !s->data_partitioning)
s->workaround_bugs |= FF_BUG_NO_PADDING;