Not sure if this actually happens, but we do the same check when
checking payload_type further above in the function, so it might
be needed.
---
 libavformat/rtp.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/rtp.c b/libavformat/rtp.c
index d1c6ed0..e827c2e 100644
--- a/libavformat/rtp.c
+++ b/libavformat/rtp.c
@@ -103,7 +103,7 @@ int ff_rtp_get_payload_type(AVFormatContext *fmt,
     /* static payload type */
     for (i = 0; rtp_payload_types[i].pt >= 0; ++i)
         if (rtp_payload_types[i].codec_id == codec->codec_id) {
-            if (codec->codec_id == AV_CODEC_ID_H263 && (!fmt ||
+            if (codec->codec_id == AV_CODEC_ID_H263 && (!fmt || !fmt->oformat 
||
                 !fmt->oformat->priv_class || !fmt->priv_data ||
                 !av_opt_flag_is_set(fmt->priv_data, "rtpflags", "rfc2190")))
                 continue;
-- 
1.7.9.4

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