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authorLaurent Aimar <fenrir@videolan.org>2011-09-12 21:09:57 +0200
committerJanne Grunau <janne-libav@jannau.net>2011-10-06 23:01:45 +0200
commit762ffa6861a8afefe11e1fe18e7b47c18d2d62f6 (patch)
tree67127468926567440c897f648eed9af95ab22670 /libavformat/segafilm.c
parent790f4dd5c96f948a637a90899b5f6af34ccb3942 (diff)
downloadffmpeg-762ffa6861a8afefe11e1fe18e7b47c18d2d62f6.tar.gz
segafilm: Fix potential division by 0 on corrupted streams in the demuxer
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
Diffstat (limited to 'libavformat/segafilm.c')
-rw-r--r--libavformat/segafilm.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/libavformat/segafilm.c b/libavformat/segafilm.c
index 32a979f1a3..ea464f29fd 100644
--- a/libavformat/segafilm.c
+++ b/libavformat/segafilm.c
@@ -113,11 +113,14 @@ static int film_read_header(AVFormatContext *s,
film->audio_bits = scratch[22];
if (scratch[23] == 2)
film->audio_type = CODEC_ID_ADPCM_ADX;
- else if (film->audio_bits == 8)
- film->audio_type = CODEC_ID_PCM_S8;
- else if (film->audio_bits == 16)
- film->audio_type = CODEC_ID_PCM_S16BE;
- else
+ else if (film->audio_channels > 0) {
+ if (film->audio_bits == 8)
+ film->audio_type = CODEC_ID_PCM_S8;
+ else if (film->audio_bits == 16)
+ film->audio_type = CODEC_ID_PCM_S16BE;
+ else
+ film->audio_type = CODEC_ID_NONE;
+ } else
film->audio_type = CODEC_ID_NONE;
}