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| author | Shitiz Garg <mail@dragooon.net> | 2011-12-16 00:36:27 +0530 |
|---|---|---|
| committer | Justin Ruggles <justin.ruggles@gmail.com> | 2012-01-04 17:47:19 -0500 |
| commit | feb15cee5e19a1e31d075ec08d598d64c2dc38ef (patch) | |
| tree | 64689fb3d91dd0011a15c4671d78593369cac41e | |
| parent | f13a9ca90602408d96fcbaf249a299ac1243609c (diff) | |
| download | ffmpeg-feb15cee5e19a1e31d075ec08d598d64c2dc38ef.tar.gz | |
mtv: Make sure audio_subsegments is not 0
audio_subsegments would be 0 and cause floating point exceptions
Fixes bugzilla #144
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
| -rw-r--r-- | libavformat/mtv.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libavformat/mtv.c b/libavformat/mtv.c index c3fb15c344..4c3b082881 100644 --- a/libavformat/mtv.c +++ b/libavformat/mtv.c @@ -106,6 +106,12 @@ static int mtv_read_header(AVFormatContext *s, AVFormatParameters *ap) avio_skip(pb, 4); audio_subsegments = avio_rl16(pb); + + if (audio_subsegments == 0) { + av_log_ask_for_sample(s, "MTV files without audio are not supported\n"); + return AVERROR_INVALIDDATA; + } + mtv->full_segment_size = audio_subsegments * (MTV_AUDIO_PADDING_SIZE + MTV_ASUBCHUNK_DATA_SIZE) + mtv->img_segment_size; |