From f3a094f2da26f62f3461e78a22b115ab8a700b8d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Storsj=C3=B6?= <martin@martin.st>
Date: Mon, 13 Feb 2012 17:05:43 +0200
Subject: [PATCH] sdp: Ignore RTCP packets when autodetecting RTP streams
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The rtp demuxer which listens for RTP packets and detects the
RTP payload type will currently get confused if the first packet
received is an RTCP packet. Thus ignore such packets.

Signed-off-by: Martin Storsjö <martin@martin.st>
---
 libavformat/rtsp.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavformat/rtsp.c b/libavformat/rtsp.c
index 1fb7b2bcda..f8611deed2 100644
--- a/libavformat/rtsp.c
+++ b/libavformat/rtsp.c
@@ -1927,6 +1927,9 @@ static int rtp_read_header(AVFormatContext *s)
             continue;
         }
 
+        if (recvbuf[1] >= RTCP_SR && recvbuf[1] <= RTCP_APP)
+            continue;
+
         payload_type = recvbuf[1] & 0x7f;
         break;
     }