[libav-stable] sdp: Check that fmt->oformat is non-null before accessing it

Martin Storsjö git at libav.org
Sun Jan 5 00:36:24 CET 2014


Module: libav
Branch: master
Commit: 82b9799bb211ecd117171115e4a8b832c4942314

Author:    Martin Storsjö <martin at martin.st>
Committer: Martin Storsjö <martin at martin.st>
Date:      Fri Jan  3 15:47:02 2014 +0200

sdp: Check that fmt->oformat is non-null before accessing it

This avoids crashes when avserver tries to create an SDP, since
d77f4af.

CC: libav-stable at libav.org
Signed-off-by: Martin Storsjö <martin at martin.st>

---

 libavformat/sdp.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/sdp.c b/libavformat/sdp.c
index ec7e2f4..895b9d6 100644
--- a/libavformat/sdp.c
+++ b/libavformat/sdp.c
@@ -402,7 +402,7 @@ static char *sdp_write_media_attributes(char *buff, int size, AVCodecContext *c,
     switch (c->codec_id) {
         case AV_CODEC_ID_H264: {
             int mode = 1;
-            if (fmt && fmt->oformat->priv_class &&
+            if (fmt && fmt->oformat && fmt->oformat->priv_class &&
                 av_opt_flag_is_set(fmt->priv_data, "rtpflags", "h264_mode0"))
                 mode = 0;
             if (c->extradata_size) {



More information about the libav-stable mailing list