[Mp4-tech] Is it possible to attach uncompressed wave audio data to MP4 ?

[Jean-Claude Dufourd]

Philip Hong wrote:
>Per the captioned question, If it is possible, please advise me with the
>details/URLs. It would be the best if you can email me some mp4 sample
>files constructed with uncompressed wave data.
>  
>
Just cut your wav in packets of any length (but do not cut across a 
sample), and these packets you can treat as access units, using the 
sample time of the first sample as decoding time stamp. It is probably 
easier if you have packets of uniform length, but that is not necessary. 
You will need to pick an user-definable object type indication. That's 
it for packaging in MP4.
Now, to play it in an MP4 Systems environment, I think it is trivial to 
add a null decoder to Osmo4/GPAC (gpac.sourceforge.net). It may even be 
already implemented.
Best regards
JC