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| author | Laurent Aimar <fenrir@videolan.org> | 2011-09-27 22:15:32 +0000 |
|---|---|---|
| committer | Janne Grunau <janne-libav@jannau.net> | 2011-10-07 16:25:31 +0200 |
| commit | 06be075cda0a6ba8bab8f543571b380884f562ac (patch) | |
| tree | 4739b6498aacefaefd1017ee23d95700e2c9373b /libavcodec/xan.c | |
| parent | c7e631986b4a326a71a20a1a51000f3fbf6e64e7 (diff) | |
| download | ffmpeg-06be075cda0a6ba8bab8f543571b380884f562ac.tar.gz | |
xan: Prevent NULL dereferences with missing reference frame
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
Diffstat (limited to 'libavcodec/xan.c')
| -rw-r--r-- | libavcodec/xan.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/xan.c b/libavcodec/xan.c index f21075c3bf..9e58a77f19 100644 --- a/libavcodec/xan.c +++ b/libavcodec/xan.c @@ -224,6 +224,8 @@ static inline void xan_wc3_copy_pixel_run(XanContext *s, palette_plane = s->current_frame.data[0]; prev_palette_plane = s->last_frame.data[0]; + if (!prev_palette_plane) + prev_palette_plane = palette_plane; stride = s->current_frame.linesize[0]; line_inc = stride - width; curframe_index = y * stride + x; |