[Mp4-tech] Can I use PCM or ADPCM as audio stream of .mp4 file?

[John Lam]

Hi all,
I'm now working on construct .mp4 file with both visual and audio
stream. Can audio stream data be non-compressed PCM (16 bits) or IMA
ADPCM (4 bits) data? If so, how to fill the whole 'trak' atom and its
sub-atom such as 'hdlr'? If not, what file format should I use for
packing MPEG4 visual stream simple profile confirmed to ISO/IEC 14496-2
and audio stream is either non-compressed PCM or IMA ADPCM together?
Thank you for your help!
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Best Regards,
John Lam