[Live-devel] Can't read from a MPEG4 unicast stream?

Ross Finlayson finlayson at live555.com
Fri Nov 17 02:25:31 PST 2006


>Hi,
>
>   This is my first contact with the library and the mpeg4 world. I'm
>trying to fetch a mpeg4 RTP unicast video stream from a sony snc-rz25p
>IP network camera. My RTCP instance keeps the connection alive (so I
>have some working code snips :) ), but i'm trying to dump the stream to
>a file, and I always get a 0 byte file.
>
>   RTP Payload type is 96. I'm using a MPEG4VideoStreamFramer as source
>(getting the stream from a MPEG4ESVideoRTPSource) and a FileSink to
>write it to disk...
>
>My affected code is:
>
>struct in_addr serverAddress;
>serverAddress.s_addr = our_inet_addr ("192.168.2.10");
>Groupsock rtpGroupsockVideo (*env, serverAddress, 50000, 255);
>
>videoSource = MPEG4ESVideoRTPSource::createNew (*env,
>						&rtpGroupsockVideo,
>						96,
>						0);
>videoFramedSource = MPEG4VideoStreamFramer::createNew (*env,
>							videoSource);
>
>fileSink = FileSink::createNew(*env, outputFilename);
>fileSink->startPlaying (*videoFramedSource, afterPlaying, NULL);
>
>env->taskScheduler().doEventLoop();
>
>The afterPlaying function is just empty.
>
>What I am doing wrong?

I'm not sure, but try replacing "192.168.2.10" with "0.0.0.0".

(See <http://www.live555.com/liveMedia/faq.html#unicast>)
-- 

Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
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