Wowza Media Server 2 patch15 or greater now includes improved support for RTSP/RTP streaming. This improved support includes RTSP/RTP Video On Demand Support, RTSP/RTP UDP Configuration, RTSP/RTP Session Timeout and Validation and RTSP/RTP over HTTP (QuickTime RTSP/RTP tunneling).You can get the latest Wowza Media Server 2 patch here:
RTSP/RTP Video On Demand Support
Wowza Media Server patch14 or greater now includes support for VOD over RTSP/RTP. The URL format for RTSP/RTP video on demand playback is:
[wowza-ip-address]: Wowza ip address
[application]: name of application configured for video on demand playback
[appInstance]: name of application instance (default is definst)
[prefix]: media type (most likely value is mp4)
[streamName]: stream name
See this post for details on how to setup an application for video on demand playback:
In addition to the steps outlined in the above post you will also need to change the RTP/Authentication/PlayMethod to none to enable RTSP/RTP playback. Once you have the video on demand application configured, the URL to playback the Extremists.m4v file is:
RTSP/RTP UDP Configuration
The second improvement to RTSP/RTP involves additional configuration items that improves UDP handling. There are now 3 additional configuration items that have been added to the base Application.xml file:
RTP/RTSPBindIpAddress: IP address to which Wowza will bind to when streaming RTP over UDP
RTP/RTSPConnectionIpAddress: IP address published in connection (c=) line of session description protocol (SDP) data
RTP/RTSPOriginIpAddress: IP address published in origin (o=) line of session description protocol (SDP) data
If your Wowza server is not behind NAT (network address translation) then it is suggested that all these of these values should be set to the external ip address of your Wowza server. If you are behind NAT then it is suggested that you use the following settings:
<RTSPBindIpAddress>[internal-ip-address]</RTSPBindIpAddress> <RTSPConnectionIpAddress>[external-ip-address]</RTSPConnectionIpAddress> <RTSPOriginIpAddress>[external-ip-address]</RTSPOriginIpAddress>
RTSP/RTP Session Timeout and Validation
Wowza Media Server 2 patch14 and greater now includes a system that does RTSP/RTP session validation and timeout.
RTSP/RTP over HTTP (QuickTime RTSP/RTP tunneling)
Wowza Media Server 2 patch15 and greater now includes support for QuickTime’s RTSP/RTP over HTTP (QuickTime RTSP/RTP tunneling).
Notes and Observations
When playing back a RTSP/RTP VOD stream using VLC, seek does not seem to work properly. The seek bar in VLC does update to the proper location after the seek is performed. This seems to be a VLC bug and not a Wowza problem. The same problem occurs when streaming RTSP/RTP VOD using Darwin as the streaming server. I have seen similar seek issues with the Blackberry Curve 8900.
The [install-dir]/content/Extremist.m4v file does not playback properly when using VLC. You can download an updated encode that seems to resolve the issue from here:
We are still considering adding support for RTSP/RTP tunneling. This is the method used by the QuickTime player if RTSP/RTP over UDP fails.
There is a RTSP/RTP Video On Demand demo stream available at:
HTML page with RTSP/RTP link: http://www.wowza.com/mobile.html Direct RTSP/RTP URL (QuickTime player or VLC): rtsp://18.104.22.168/vod/mp4:BigBuckBunny_175k.mov