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| author | Luca Barbato <lu_zero@gentoo.org> | 2012-10-25 15:42:08 +0200 |
|---|---|---|
| committer | Luca Barbato <lu_zero@gentoo.org> | 2001-01-01 01:06:41 +0100 |
| commit | 22f7942fe7d7349e3562ac68fa101d9efec522df (patch) | |
| tree | 18d1c925d08877ca9df587eb320ee807f0061b26 | |
| parent | dcdfb8ede3580cde6acc1c6ca889ad3b610d75dc (diff) | |
| download | ffmpeg-22f7942fe7d7349e3562ac68fa101d9efec522df.tar.gz | |
ffv1: set the range coder state in decode_slice_header
| -rw-r--r-- | libavcodec/ffv1dec.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/libavcodec/ffv1dec.c b/libavcodec/ffv1dec.c index f5f7a8f2f5..c5329b42ad 100644 --- a/libavcodec/ffv1dec.c +++ b/libavcodec/ffv1dec.c @@ -273,7 +273,12 @@ static int decode_slice_header(FFV1Context *f, FFV1Context *fs) unsigned ps, i, context_count; memset(state, 128, sizeof(state)); - av_assert0(f->version > 2); + if (fs->ac > 1) { + for (i = 1; i < 256; i++) { + fs->c.one_state[i] = f->state_transition[i]; + fs->c.zero_state[256 - i] = 256 - fs->c.one_state[i]; + } + } fs->slice_x = get_symbol(c, state, 0) * f->width; fs->slice_y = get_symbol(c, state, 0) * f->height; |