[Live-devel] Example of a streamable mp4 file

Ross Finlayson finlayson at live.com
Thu Nov 11 02:44:12 PST 2004


>I have some questions about MPEG4. Is it correct that I can stream with 
>testOnDemandRTSPServer only MPEG4-Video-Elementary-Streams?

At present, yes.

>  What about MPEG4 Audio Streams?

Not right now.  (The only real reason for this is that there currently 
isn't a 'framer' filter for MPEG-4 (AAC) audio, but one would probably be 
fairly easy to write.)

>  Doesn't consist an mp4-file of MPEG4-Video-ES and an 
> MPEG-4-Audio-Stream? Is it possible to demux and stream a mp4-file with 
> audio and video with liveMedia as it is possible for MPEG1/2?

Yes, it's 'possible', but this is new code that would need to be written.

>Does anybody has a mp4-file which can be streamed by 
>testOnDemandRTSPServer? Perhaps it is possible to put this file on a web 
>page where I can download it. How can I create a mp4-file which can be 
>streamed by liveMedia for example from a MPEG2-file?

One easy way to generate a MPEG-4 video elementary stream file that can be 
streamed by "testMPEG4VideoStreamer" (or "testOnDemandRTSPServer") is to 
find a MPEG-4 RTSP stream, and run the "openRTSP" test program to record 
it.  "openRTSP" will write out a file named "video-<something>".  You can 
then rename this file to "test.m4v".

However, I have also put online an example of such a file that you can use 
for testing
         http://www.live.com/test.m4v
(This file is ~5.8 MBytes in size.  I will remove it in a few days.)


	Ross Finlayson
	LIVE.COM
	<http://www.live.com/>



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