[Live-devel] Streaming Transport Stream bit rate question

[Dixon Siu]

Hi Ross,

Thank you very much for the promptly reply.
I guess it would be more convenient for us to stream TS file then.

Another question. I still have trouble fixing it. My DeviceSource copies a
buffer to fTo. When I use SimpleRTPSink, it is okay. I tried to use demux to
separate my DeviceSource into audio and video. It didn't work. I looked into
the code, it seems that the demux only need to refer to fTo. So it doesn't
matter that my source is a buffer. Can you give me any suggestion?

	mpegDemux = MPEG1or2Demux::createNew(*env, aDeviceSource);
	FramedSource* audioES = mpegDemux->newAudioStream();
	FramedSource* videoES = mpegDemux->newVideoStream();

	audioSource = MPEG1or2AudioStreamFramer::createNew(*env, audioES);
	videoSource = MPEG1or2VideoStreamFramer::createNew(*env, videoES,
iFramesOnly);

	videoSink->startPlaying(*videoSource, afterPlaying, videoSink);
	audioSink->startPlaying(*audioSource, afterPlaying, audioSink);

Thank you very much for your attention.

Dixon

> -----Original Message-----
> From: live-devel-bounces at ns.live.com
> [mailto:live-devel-bounces at ns.live.com]On Behalf Of Ross Finlayson
> Sent: Wednesday, June 02, 2004 1:53 PM
> To: LIVE.COM Streaming Media - development & use
> Subject: RE: [Live-devel] Streaming Transport Stream bit rate question
>
>
>
> >1. With proper setting, can I use the MPEG2TransportStreamFramer
> to handle
> >PS file?
>
> No, definitely not.  The "MPEG2TransportStreamFramer" class has explicit
> knowledge of the structure of MPEG Transport Stream packets
> (including PCR
> (timestamp) values, which it uses to compute the 'duration' of each
> Transport Stream packet).
>
> >2. Will you provide MPEG2ProgramStreamFramer to handle PS file for later
> >release? Without demuxing the content.
>
> This is unlikely, unless a client pays for this to be done.  (The
> "MPEG2TransportStreamFramer" support came about as a result of a project
> done for a client.)  Note, of course, that if you know the average
> 'duration' of a fixed-size chunk of Program Stream data, then you
> can just
> use "SimpleRTPSink", as you have already noted.
>
> In any case, I believe that the best way to stream a MPEG Program
> Stream is
> to demux the audio and video, and send them as separate RTP
> streams, as is
> already done by the "testMPEG1or2AudioVideoStreamer" test program.
>
>
> 	Ross Finlayson
> 	LIVE.COM
> 	<http://www.live.com/>
>
> _______________________________________________
> live-devel mailing list
> live-devel at lists.live.com
> http://lists.live.com/mailman/listinfo/live-devel
>
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