[Mp4-tech] request: mpeg 4 audio , video profiles and levels

[Herbert Thoma]

ravi kumar schrieb:
> 
> hi all,
> 
>   I request you to please clarify the following
> 
> 1. How many profiles and levels are there in MPEG4 ASP

There is one Profile ASP = Advanced Simple Profile and there are 6
levels: 1, 2, 3, 3b, 4, 5
> 2. Where I could find profile and levels for all MPEG? 1, 2,4,7?
>     (including frame rates)

In the respective standard document.
> 3.  Which is best profile and level for most of the common usage( say  < 1MBps) applications

Depends on your application. For 1 Mbps and ASP probably level 3b.
> 4. In real time ( say video conference applications)  how one can merge  audio and video
> profile  OR talk about profile and levels( since audio and video profile and levels are different)?

You have a profile for video and a profile for audio. Where is the problem?
> 5.  Show me the  web link so that I can clarify few more doubts.

http://www.mpegif.org
http://www.chiariglione.org/mpeg/
> 
> Regards
> Ravi
> 
> 
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> 
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-- 
Herbert Thoma
FhG-IIS A, Studio Department
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