[Live-devel] RTSP Streaming Playback in QuickTime

[Ganesh V]

Hello Ross,

Many thanks for your pointer. I enabled debug and retried my experiments with VLC, QT and Windows Media Player. From the logs, I observed the following.

After connection is setup,
- both VLC and QT send DESCRIBE command with bytes and parseRTSPRequestString returns DESCRIBE command name.
- After this stage, both VLC and QT are able to sent SETUP command which is also serviced successfully
- After setup, PLAY is also serviced successfully for both the players. At the end of this stage, RTP info in URL is passed successfully from RTSPServer. 
- After this stage, VLC is able to play the stream without any issues. But, in case of QT, I observed that QT sends "0" bytes and terminates the connection. After the same, QT sends a GET command with HTTP/1.0 to Live555MediaServer. 
- Because the incoming protocol type is HTTP, parseRTSPRequestString() failed and hence, Bad Request Message is observed in QT.

The same issue is observed when I try playing the streaming data using Windows Media Player too. I have attached the log in case of QT player.

Is this a known defect with QT or am I missing some parameter or initialization? Another interesting issue I observed was that one version of QT detected the frame width and height, but was unable to display the decoded data. 

Do I need to invoke or modify any call in case of QT/ Windows Media Player? I assume that the current failure is due to the incoming request type to be HTTP. How do I overcome the same?

Thanks,
Ganesh





________________________________
From: Ross Finlayson <finlayson at live555.com>
To: LIVE555 Streaming Media - development & use <live-devel at ns.live555.com>
Sent: Monday, May 4, 2009 8:33:10 PM
Subject: Re: [Live-devel] RTSP Streaming Playback in QuickTime

> I am trying to stream out MPEG4/H.264 streams from my application on a device using livemedia stack. I am able to play the streams without any issues using VLC player and my own player based of Livemedia stack. However, when I try to play the same using a Quicktime player, I observe a "Bad Request" message.

Turn on debugging output in your RTSP server application, by adding
#define DEBUG 1
to the start of "liveMedia/RTSPServer.cpp", and recompile.  That should tell you why the server is rejecting the request.
-- 
Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
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