[FFmpeg-cvslog] rl2demux: Fix FPE

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sun Dec 18 23:54:56 2011 +0100| [f371396dfb95c116a05e9b9f690fa916bb2d815e] | committer: Michael Niedermayer

rl2demux: Fix FPE
Fixes Ticket788
Bug found by Oana Stratulat

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f371396dfb95c116a05e9b9f690fa916bb2d815e
---

 libavformat/rl2.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/libavformat/rl2.c b/libavformat/rl2.c
index 530e0df..78edec5 100644
--- a/libavformat/rl2.c
+++ b/libavformat/rl2.c
@@ -138,6 +138,9 @@ static av_cold int rl2_read_header(AVFormatContext *s,
 
     /** setup audio stream if present */
     if(sound_rate){
+        if(channels <= 0)
+            return AVERROR_INVALIDDATA;
+
         pts_num = def_sound_size;
         pts_den = rate;