Results 1 to 5 of 5

Thread: RTSP SETUP transport switching

  1. #1

    Default RTSP SETUP transport switching

    I am trying to use SETUP to switch transports after a stream has already been established. Specifically I am trying to do this to support falling back to TCP interleave if I do not receive RTCP packets back from Wowza when using UDP (Indicating UDP is possibly being blocked). The RTSP messages indicate that this is supported, but after doing the transport switch Wowza does not read from the TCP connection. It will however continue to accept UDP packets for the initial SETUP. Is this something that is supposed? I have attached some RTSP test responses. If this is not supported it would be nice if you would return a 455.

    General RTSP messaging.

    2011-12-15 10:41:54.034 sRTSP[23365:707] --- OPTIONS Response: 200 ---
    
     {
        "Cache-Control" = " no-cache";
        Cseq = " 1";
        Public = " DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE, OPTIONS, ANNOUNCE, RECORD, GET_PARAMETER";
        Server = " Wowza Media Server 3.0.3.12 build1008";
        Supported = " play.basic, con.persistent";
    } 
    2011-12-15 10:41:54.079 sRTSP[23365:707] --- ANNOUNCE Response: 200 - session: 77783130 ---
    
     {
        "Cache-Control" = " no-cache";
        Cseq = " 2";
        Server = " Wowza Media Server 3.0.3.12 build1008";
        Session = " 77783130;timeout=60";
    } 
    2011-12-15 10:41:54.085 sRTSP[23365:707] --- SETUP Response: 200 ---
    
     {
        "Cache-Control" = " no-cache";
        Cseq = " 3";
        Date = " Thu, 15 Dec 2011 10:41:54 PST";
        Expires = " Thu, 15 Dec 2011 10:41:54 PST";
        Server = " Wowza Media Server 3.0.3.12 build1008";
        Session = " 77783130;timeout=60";
        Transport = " RTP/AVP/UDP;unicast;client_port=5000-5001;mode=receive;source=192.168.1.50;server_port=6972-6973";
    } 
    2011-12-15 10:41:54.089 sRTSP[23365:707] --- SETUP Response: 200 ---
    
     {
        "Cache-Control" = " no-cache";
        Cseq = " 4";
        Date = " Thu, 15 Dec 2011 10:41:54 PST";
        Expires = " Thu, 15 Dec 2011 10:41:54 PST";
        Server = " Wowza Media Server 3.0.3.12 build1008";
        Session = " 77783130;timeout=60";
        Transport = " RTP/AVP/UDP;unicast;client_port=5002-5003;mode=receive;source=192.168.1.50;server_port=6970-6971";
    } 
    2011-12-15 10:41:54.091 sRTSP[23365:707] --- RECORD Response: 200 ---
    
     {
        "Cache-Control" = " no-cache";
        Cseq = " 5";
        Range = " npt=now-";
        Server = " Wowza Media Server 3.0.3.12 build1008";
        Session = " 77783130;timeout=60";
    } 
    2011-12-15 10:41:59.094 sRTSP[23365:707] --- SETUP Response: 200 ---
    
     {
        "Cache-Control" = " no-cache";
        Cseq = " 6";
        Date = " Thu, 15 Dec 2011 10:41:59 PST";
        Expires = " Thu, 15 Dec 2011 10:41:59 PST";
        Server = " Wowza Media Server 3.0.3.12 build1008";
        Session = " 77783130;timeout=60";
        Transport = " RTP/AVP/TCP;unicast;interleaved=0-1;mode=receive";
    } 
    2011-12-15 10:41:59.096 sRTSP[23365:707] --- SETUP Response: 200 ---
    
     {
        "Cache-Control" = " no-cache";
        Cseq = " 7";
        Date = " Thu, 15 Dec 2011 10:41:59 PST";
        Expires = " Thu, 15 Dec 2011 10:41:59 PST";
        Server = " Wowza Media Server 3.0.3.12 build1008";
        Session = " 77783130;timeout=60";
        Transport = " RTP/AVP/TCP;unicast;interleaved=2-3;mode=receive";
    } 
    2011-12-15 10:41:59.101 sRTSP[23365:707] --- TEARDOWN Response: 200 ---
    
     {
        "Cache-Control" = " no-cache";
        Cseq = " 8";
        Server = " Wowza Media Server 3.0.3.12 build1008";
        Session = " 77783130;timeout=60";
    } 
    Program ended with exit code: 0
    Live test messages.

    2011-12-15 13:32:55.909 Livu[4783:707] [trace] Connected
    2011-12-15 13:32:55.911 Livu[4783:707] [trace] --- OPTIONS Request ---
    
    OPTIONS rtsp://...:1935/live/stream RTSP/1.0
    Cseq: 1
    
    2011-12-15 13:32:56.013 Livu[4783:707] [trace] --- OPTIONS Response ---
    
    RTSP/1.0 200 OK
    Supported: play.basic, con.persistent
    Cseq: 1
    Server: Wowza Media Server 3.0.3.12 build1008
    Public: DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE, OPTIONS, ANNOUNCE, RECORD, GET_PARAMETER
    Cache-Control: no-cache
    
    
    2011-12-15 13:32:56.016 Livu[4783:707] [trace] --- ANNOUNCE Request ---
    
    ANNOUNCE rtsp://...:1935/live/stream RTSP/1.0
    Cseq: 2
    Content-Length: 246
    Content-Type: application/sdp
    
    v=0
    o=- 0 0 IN IP4 127.0.0.1
    s=Livu
    c=IN IP4 ...
    t=0 0
    a=tool:Livu RTP
    m=video 0 RTP/AVP 97
    b=AS:64
    a=rtpmap:97 H264/90000
    a=fmtp:97 packetization-mode=1;sprop-parameter-sets=Z0IAHqtAsEsg,KM48gA==
    a=control:trackid=1
    
    2011-12-15 13:32:56.140 Livu[4783:707] [trace] --- ANNOUNCE Response ---
    
    {
        "Cache-Control" = " no-cache";
        Cseq = " 2";
        Server = " Wowza Media Server 3.0.3.12 build1008";
        Session = " 450654471;timeout=60";
    }
    2011-12-15 13:32:56.141 Livu[4783:707] [trace] --- SETUP Request ---
    
    SETUP rtsp://...:1935/live/stream/trackid=1 RTSP/1.0
    Session: 450654471
    Cseq: 3
    Transport: RTP/AVP/UDP;unicast;client_port=5002-5003;mode=receive
    
    2011-12-15 13:32:56.246 Livu[4783:707] [trace] --- SETUP Response ---
    
    RTSP/1.0 200 OK
    Date: Thu, 15 Dec 2011 13:31:51 PST
    Transport: RTP/AVP/UDP;unicast;client_port=5002-5003;mode=receive;source=....;server_port=6980-6981
    Session: 450654471;timeout=60
    Expires: Thu, 15 Dec 2011 13:31:51 PST
    Cseq: 3
    Server: Wowza Media Server 3.0.3.12 build1008
    Cache-Control: no-cache
    
    
    2011-12-15 13:32:56.251 Livu[4783:707] [trace] --- RECORD Request ---
    
    RECORD rtsp://...:1935/live/stream RTSP/1.0
    Cseq: 4
    range: npt=0.000-
    Session: 450654471
    
    2011-12-15 13:32:56.348 Livu[4783:707] [trace] --- RECORD Response ---
    
    RTSP/1.0 200 OK
    Range: npt=now-
    Session: 450654471;timeout=60
    Cseq: 4
    Server: Wowza Media Server 3.0.3.12 build1008
    Cache-Control: no-cache
    
    2011-12-15 13:32:56.354 Livu[4783:707] Broadcast Message: Started
    2011-12-15 13:33:32.420 Livu[4783:6f03] RTCP Timeout
    2011-12-15 13:33:32.421 Livu[4783:6f03] Switching to TCP as transport
    2011-12-15 13:33:32.422 Livu[4783:6f03] [trace] --- SETUP Request ---
    
    SETUP rtsp://...:1935/live/stream/trackid=1 RTSP/1.0
    Session: 450654471
    Cseq: 5
    Transport: RTP/AVP/TCP;unicast;interleaved=0-1;mode=receive
    
    2011-12-15 13:33:32.522 Livu[4783:6f03] [trace] --- SETUP Response ---
    
    RTSP/1.0 200 OK
    Date: Thu, 15 Dec 2011 13:32:27 PST
    Transport: RTP/AVP/TCP;unicast;interleaved=0-1;mode=receive
    Session: 450654471;timeout=60
    Expires: Thu, 15 Dec 2011 13:32:27 PST
    Cseq: 5
    Server: Wowza Media Server 3.0.3.12 build1008
    Cache-Control: no-cache
    
    2011-12-15 13:33:32.524 Livu[4783:6f03] [trace] Response line count: 10
    2011-12-15 13:33:32.526 Livu[4783:6f03] Startup broadcast back up
    At this point any data sent over the RTSP connection is ignored by Wowza. The prior UDP connection still works.

  2. #2

    Default

    I did test tearing down the connection, and then setting it up again using TCP interleave. VLC survived the transition which is a good thing. Flash did as well as I assumed it would.

  3. #3
    Join Date
    Dec 2007
    Posts
    21,962

    Default

    Why not use MediaCaster API to stop the stream, change forceInterleaved, then start again.

    Richard

  4. #4

    Default

    Would this not change forceInterleaved for every connection to the application? Or is the switch only for a particular stream? I will look into this. Thanks.
    Last edited by SteveMc; 12-15-2011 at 04:12 PM.

  5. #5

    Default

    This property applies to all streams for a particular application. We currently do not have a way to do this stream by stream.

    Charlie

Similar Threads

  1. RTSP Transcoding and setup
    By easyflv.com in forum Wowza Media Server 3 for Amazon EC2 Discussion
    Replies: 0
    Last Post: 09-27-2012, 11:38 PM
  2. Replies: 0
    Last Post: 06-20-2012, 12:36 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •