[Live-devel] MP3 streaming problem

[Ignacio Barreto]

Hi Ross,
we tried what you suggested and we find some interesting issue.

We have a video subsession, which works fine streaming H.264 video frames.
We added another subsession for audio, we return as you suggested our
own framed source subclass.

The interesting thing is if we NOT ADD the video subsession to the
ServerMediaSession, the audio hears perfectly well. However, if we add
the video subsession, as well as the audio subsession we started to
hear some glitches.
Any ideas?


2016-04-16 4:13 GMT-03:00 Gilles Chanteperdrix
<gilles.chanteperdrix at xenomai.org>:
> On Fri, Apr 15, 2016 at 02:26:37AM -0700, Ross Finlayson wrote:
>> > We based our streamer server using testOnDemandRTSPServer.
>> > We subclassed FramedSource (AudioFramedSource) and
>> > OnDemandServerMediaSubsession (AudioServerMediaSubsession)
>> >
>> > In this AudioServerMediaSubsession class we return
>> > MPEG1or2AudioStreamFramer in createNewStreamSource method and
>> > MPEG1or2AudioRTPSink in createNewRTPSink method
>>
>> This looks good - but are you sure that your MP3 audio source is OK?  I.e., I suggest that you first output your MP3 audio source (from your encoder) to a file, and make sure that you can play that file OK (e.g., using VLC).  Then, I suggest making sure that you can stream this file (using “testOnDemandRTSPServer” and/or the “LIVE555 Media Server”).
>>
>>
>> > Is there some example of how to use MP3ADU from memory live source?
>>
>> There’s code in “MP3AudioFileServerMediaSubsession.cpp” that should help you here.  Be aware, however, that very few RTSP clients will implement the MP3ADU RTP payload format; VLC is the only one that I know of.
>>
>
> ffplay/ffmpeg version 2.6 and later supports MP3ADU.
>
> --
>                                             Gilles.
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