[Live-devel] Stream errors with MPEG 4 ES

[Kumar Bala (DSP-Weuffen GmbH)]

>> Because your input device returns discrete MPEG-4 video frames,
rather than a byte stream, it'd be better if you used
"MPEG4VideoStreamDiscreteFramer", rather than "MPEG4VideoStreamFramer".

That did the trick, I streamed for 30 min without one single error !!!

Thanks a ton.




Mit freundlichen Grüßen / Best regards

Kumar Bala
(Software Developer and System Designer)


DSP-Weuffen
Software/Hardware für DSP- und MCP-Konzeption und Optimierung ihres Systems

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Ross Finlayson wrote:
>> I use  the testOnDemandRTSPServer to stream live video (captured using
>> an analog camera and encoded to MPEG 4 ES using a co-processor). I use
>> ByteFileStreamSource.cpp in (ASYNCHRONOUS mode) as a base model for my
>> device. I have modified doReadFromFile in such a way that it reurns an
>> MPEG 4 frame from the "codec engine"(capture device + mpeg 4 encoder).
>
> Because your input device returns discrete MPEG-4 video frames, rather
> than a byte stream, it'd be better if you used
> "MPEG4VideoStreamDiscreteFramer", rather than "MPEG4VideoStreamFramer".
>
> However, your first test should have been using the *unmodified*
> source code - to stream from a MPEG-4 Video Elementary Stream *file*.
> I.e., you should have first created a file "test.m4e" - from the
> output of your encoder - and then tried streaming this, using the
> *unmodified* "testOnDemandRTSPServer" (or "testMPEG4VideoStreamer")
> application.  (In general, once you've modified the supplied code, you
> can't expect to get much support on this mailing list.)
>
> I suspect that perhaps the output from your encoder is not in the
> proper form - i.e., not a true MPEG-4 Video Elementary Stream.  If you
> this may be true, then please put your "test.m4e" file on a web
> server, and send us the URL, so we can download and test this for
> ourselves.