From feb15cee5e19a1e31d075ec08d598d64c2dc38ef Mon Sep 17 00:00:00 2001 From: Shitiz Garg Date: Fri, 16 Dec 2011 00:36:27 +0530 Subject: 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 --- libavformat/mtv.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'libavformat/mtv.c') 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; -- cgit v1.2.3