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avcodec/h263dec: Workaround H263 end padding bug
author
Michael Niedermayer
<michaelni@gmx.at>
Tue, 4 Mar 2014 01:47:12 +0000
(
02:47
+0100)
committer
Michael Niedermayer
<michaelni@gmx.at>
Tue, 4 Mar 2014 01:47:12 +0000
(
02:47
+0100)
Fixes: H263PaddingBugFixVID_6647.MOV
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libavcodec/h263dec.c
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diff --git
a/libavcodec/h263dec.c
b/libavcodec/h263dec.c
index
6324e9b
..
8fb3d38
100644
(file)
--- a/
libavcodec/h263dec.c
+++ b/
libavcodec/h263dec.c
@@
-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;