[Live-devel] live555MediaServer info

[Saverio ABC]

Dear Ross,

Thank you very much for your explanation , I'll try to follow your advice.
Best regards,

Saverio



Il 22/07/2015 17:01, Ross Finlayson ha scritto:
>> I've this network infrastructure:
>>
>> - Server1 with live555MediaServer installed that stream a MPEG 
>> Transport Stream file .ts on the net (This file .ts is growing)
>> - Server2 with live555ProxyServer installed that receives rtsp stream 
>> of Server1 and proxy it to some RTSP clients
>> It works fine but now when a RTSP Client connects to Server2 receives 
>> the video stream ever since the beginning of the file .ts.
>>
>> *Is it possible to modify live555MediaServer code or 
>> live555ProxyServer to set the start of stream always at 90% of file 
>> lenght?*
>
> The “LIVE555 Media Server” is intended to be a complete application - 
> for streaming complete media files (i.e., starting from the beginning) 
> - and was not intended to be modified (although anyone is, of course, 
> free to do so, subject to the LGPL).  The reason why the first client 
> of the proxy server receives data from the start of the file is 
> because the because your ‘back end’ server is the “LIVE555 Media 
> Server”, and this server works by streaming from the file, starting 
> from the beginning.  (Note, however, that if you later start a second 
> concurrent client of the proxy server, then this second client will 
> receive the stream starting at the same point that the first client is 
> currently at - i.e., not at the start of the file.)
>
> Therefore, if you want to change this behavior, you should do so by 
> developing your own ‘back end’ server that handles each request - from 
> the ‘proxy server’ - by starting the stream at whatever point you want 
> (rather than the beginning of the file).  To do this, I suggest that 
> you use the “testOnDemandRTSPServer” demo application code (in the 
> “testProgs”) directory as a model.  In particular, you would develop 
> your own “OnDemandServerMediaSubsession” subclass; see
> http://live555.com/liveMedia/faq.html#liveInput-unicast
> Note that you would need to implement the “createNewStreamSource()” 
> and “createNewRTPSink()” pure virtual functions.  Your implementation 
> of “createNewRTPSink()” would be exactly the same as the one that’s in 
> “liveMedia/MPEG2TransportFileServerMediaSubsession.cpp”.  Your 
> implementation of “createNewStreamSource()” would work by seeking 
> initially to whatever point in the file you want.
>
> Ross Finlayson
> Live Networks, Inc.
> http://www.live555.com/
>
>
>
> _______________________________________________
> live-devel mailing list
> live-devel at lists.live555.com
> http://lists.live555.com/mailman/listinfo/live-devel

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