[Live-devel] Patch to liveMedia for Consideration

[Harper, Paul]

I appreciate your position, thanks for taking a look.  

I have requested changes to our RTSP server to allow compatibility with
liveMedia.

-- 
Paul Harper
pharper at c-cor.com
503.531.6438

On Mon, 2006-12-25 at 21:58 -0800, Ross Finlayson wrote:
> > Attached is a patch file to liveMedia that I would like to submit
> > for consideration. It allows liveMedia to initiate an RTSP session
> > on an nCUBE/C-COR video server.  The code that was added is similar
> > to the code currently in place for Kasenna and Microsoft.
> 
> 
> Thanks for the submission.  Unfortunately, however, I'm getting
> increasingly reluctant to keep adding ugly hacks to the RTSP client
> code in order to support all sorts of different weird, non-standard
> servers.  (I realize that - for historical reasons - we already have
> ugly code there to support Kasenna servers; however, I'd like to
> remove this at some point in the future (as these broken old Kasenna
> servers fade into irrelevance).)
> 
> 
> Our installed base (in VLC, MPlayer, and other RTSP clients) is now
> sufficiently large (far larger than the installed base of any
> particular RTSP server implementation) that I believe it's now
> reasonable and appropriate for us to put pressure on these server
> implementors to clean up their implementations to make them more
> compliant with standards, and with other existing implementations.
> 
> 
> With this in mind, rather than add your patch to the code, I ask that
> the implementors of the "nCUBE/C-COR" video server make the following
> three simple changes to their implementation.  If they do this, their
> server should - I believe - work with the existing "LIVE555 Streaming
> Media" RTSP client implementation - and the large existing installed
> base of VLC (and MPlayer etc.) clients:
> 
> 
> 1/ Change the SDP description returned in response to a RTSP
> "DESCRIBE" command to say
>        RAW/RAW/UDP
>   instead of
>        RTP/AVP
>   (reporting "RTP/AVP" is very wrong, because the server is quite
> clearly *not* sending RTP)
> 
> 
> 2/ Accept "RAW/RAW/UDP" in the "Transport:" header of RTSP "SETUP"
> commands (rather than requiring that the string "MP2T/DVBC/UDP" be
> used).
> 
> 
> 3/ Make whatever (presumably minor) fixes are necessary to the server
> so that you don't need to modify the existing implementation of the
> "constructSubsessionURL()" command.
> -- 
> 
> Ross Finlayson
> Live Networks, Inc.
> http://www.live555.com/
> plain text document attachment (ATT92777.txt), "ATT92777.txt"
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