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author | Reimar Döffinger <Reimar.Doeffinger@gmx.de> | 2011-01-15 15:44:48 +0300 |
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committer | Reimar Döffinger <Reimar.Doeffinger@gmx.de> | 2011-01-15 15:44:48 +0300 |
commit | b0c8b8a69d37b55a03a600d753113f4314404080 (patch) | |
tree | 6d28293e6e1cc19c232442c080796846ba15ec04 /libavcodec/lagarith.c | |
parent | fbd56159a099dafac617440a2312b47dcb0386c7 (diff) |
Lagarith: fix decoding of one-coloured frames by reading the per-plane
color value instead of always taking 0 (resulting in green frames).
Fixes issue issue2531.
Originally committed as revision 26363 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/lagarith.c')
-rw-r--r-- | libavcodec/lagarith.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/libavcodec/lagarith.c b/libavcodec/lagarith.c index 95179df729..1bf61bd23d 100644 --- a/libavcodec/lagarith.c +++ b/libavcodec/lagarith.c @@ -405,9 +405,13 @@ static int lag_decode_arith_plane(LagarithContext *l, uint8_t *dst, } } } else if (esc_count == 0xff) { - /* Plane is a solid run of 0 bytes */ + /* Plane is a solid run of given value */ for (i = 0; i < height; i++) - memset(dst + i * stride, 0, width); + memset(dst + i * stride, src[1], width); + /* Do not apply prediction. + Note: memset to 0 above, setting first value to src[1] + and applying prediction gives the same result. */ + return 0; } else { av_log(l->avctx, AV_LOG_ERROR, "Invalid zero run escape code! (%#x)\n", esc_count); |