1 files changed, 5 insertions, 0 deletions
diff --git a/libavformat/rtp.c b/libavformat/rtp.c
index d59b6941b6..35edb5066a 100644
--- a/libavformat/rtp.c
+++ b/libavformat/rtp.c
@@ -103,6 +103,11 @@ int ff_rtp_get_payload_type(AVCodecContext *codec)
                     continue;
             payload_type = AVRtpPayloadTypes[i].pt;
         }
+
+    /* dynamic payload type */
+    if (payload_type < 0)
+        payload_type = RTP_PT_PRIVATE + (codec->codec_type == AVMEDIA_TYPE_AUDIO);
+
     return payload_type;
 }