vlc | branch: master | Francois Cartegnie <fcvlc...@free.fr> | Wed Oct  8 
17:06:28 2014 +0200| [929970aecfc91725ba243953ccb5197fa797c0a8] | committer: 
Francois Cartegnie

demux: mp4: fix heap buffer ofw with zero chunk (fix #12356)

> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=929970aecfc91725ba243953ccb5197fa797c0a8
---

 modules/demux/mp4/mp4.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/modules/demux/mp4/mp4.c b/modules/demux/mp4/mp4.c
index eff7bf8..f40cf2a 100644
--- a/modules/demux/mp4/mp4.c
+++ b/modules/demux/mp4/mp4.c
@@ -2255,7 +2255,7 @@ static void TrackGetESSampleRate( demux_t *p_demux,
         return;
     }
 
-    if( p_track->i_chunk_count <= 0 )
+    if( p_track->i_chunk_count == 0 )
         return;
 
     /* */
@@ -2295,7 +2295,7 @@ static int TrackCreateES( demux_t *p_demux, mp4_track_t 
*p_track,
     demux_sys_t *p_sys = p_demux->p_sys;
     unsigned int i_sample_description_index;
 
-    if( p_sys->b_fragmented )
+    if( p_sys->b_fragmented || p_track->i_chunk_count == 0 )
         i_sample_description_index = 1; /* XXX */
     else
         i_sample_description_index =

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