diff options
| author | Michael Niedermayer <michaelni@gmx.at> | 2014-01-19 15:28:25 +0000 |
|---|---|---|
| committer | Reinhard Tartler <siretart@tauware.de> | 2014-02-02 12:48:34 -0500 |
| commit | 30c8a5e4f6c096eabb82c45177b945ebc85144fb (patch) | |
| tree | 48a74436aca3ebad3ef075983abc0f0799f5aef6 | |
| parent | 716ee73c991cfa4a8a49670e2650ebd0e2d34df8 (diff) | |
| download | ffmpeg-30c8a5e4f6c096eabb82c45177b945ebc85144fb.tar.gz | |
vc1: Always reset numref when parsing a new frame header.
Fixes an issue where the B-frame coding mode switches from interlaced
fields to interlaced frames, causing incorrect decisions in the motion
compensation code and resulting in visual artifacts.
CC: libav-stable@libav.org
Signed-off-by: Tim Walker <tdskywalker@gmail.com>
(cherry picked from commit dd2d0039b6405dc724e4fef0d5b8f49530eea3aa)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
(cherry picked from commit 3cc8d9bc1ffc6c0888960fb009f12fa3047bb663)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
| -rw-r--r-- | libavcodec/vc1.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/libavcodec/vc1.c b/libavcodec/vc1.c index 6135ebdc09..68e0d0d306 100644 --- a/libavcodec/vc1.c +++ b/libavcodec/vc1.c @@ -822,6 +822,7 @@ int vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb) int mbmodetab, imvtab, icbptab, twomvbptab, fourmvbptab; /* useful only for debugging */ int scale, shift, i; /* for initializing LUT for intensity compensation */ + v->numref = 0; v->p_frame_skipped = 0; if (v->second_field) { v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I; |