[Mp4-tech] AAC header in MP4 file format

[Yoshikazu Yokomizo]

As far as I know as of today,
ISO/IEC14496-12 and 14 are at FDIS and on the way of voting step to IS.
FDIS documents can be purchased from ISO online shop.
http://www.iso.ch/iso/en/CatalogueListPage.CatalogueList
For above reason however, you can't find 14496-12, 14 there.
My suggestion is to send an e-mail to ISO from that page.
Y.Yokomizo
At 17:54 03/08/07 +0800, 丁樗 wrote:
>Trevor
>    can you tell me where i can find ISO/IEC 14496-12 and 14?
>   THX
>   Rgds
>huming
>
>
>
>
>
>
> > Huming,
> >
> > Mp4 is the iso file format for containing mpeg-4 streams. For
> > definitions of moov and mdat you have
> > to refer to ISO/IEC 14496-12 and 14. After you read these two documents,
> > you should be able to decode the "00 02 6a dc 6d 64 61 74 c0 11 a5 02
> > 60..." yourself.
> > 00 02 6a dc : size of atom mdat
> > 6d 64 61 74 : ascii code!  of "mdat"
> > c0 11 a5 02 60 ...... : real data of mdat atom.
> >
> > Hope this helps.
> >
> > Rgds,
> > Trevor
> >
> >
> > -----Original Message-----
> > From: mp4-tech-bounces lists.mpegif.org
> > [mailto:mp4-tech-bounces lists.mpegif.org] On Behalf Of CzCt
> > Sent: Thursday, August 07, 2023 8:35 AM
> > To: mp4-tech lists.mpegif.org
> > Subject: Re: [Mp4-tech] AAC header in MP4 file format
> >
> >
> > hi,all
> >    What is the MP4 file format(include the audio and video)?
> >    what are the ATOM,such&nb!
>sp;as "moov","mdata", represente! d by in the
> > stream?
> >    I found with the MP4 file format streams that i have, that the first
> > HEX datas
> >  are "00 02 6a dc 6d 64 61 74 c0 11 a5 02 60 ...........".
> >    can you tell me what it means?
> >    regards
> >    huming
> >
> > ==============================================
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> >
> >
> >
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