[Mp4-tech] supporting AMR, AAC audios and MPEG-4 videos in QTfile format.

[Dave Singer]

At 5:53 PM +0200 8/9/04, Jean-Claude Dufourd wrote:
>.mov are Apple-private. MPEG does not know what is in a .mov, so 
>this reflector is not the proper place to ask.
>.mp4 are in the scope of this reflector (.3gp not really, but well...)
>The information about MP4 file format is ISO/IEC 14496-12 and -14, 
>available from <http://www.iso.ch>www.iso.ch
>Best regards
>JC

JC is right;  you're better off asking me.
As it happens, we store AMR according to the 3GPP specs (see 26.234 
in 3GPP release 5), AAC according to MP4 specs, andMPEG-4 video 
according to MP4 specs also.
>
>Satyanarayana.N wrote:
>
>>I have generated clips using export option in QuickTime 6.0 player, 
>>these streams have aac,mp4 video directly in .mov file format it 
>>self!!
>>Can anybody assist me in finding out the standard document which 
>>explains about support of the aac,amr, and mp4 video in .mov files?
>>
>>----- Original Message -----
>>From: <mailto:rlei ati.com>Ryan Lei
>>To: <mailto:satya emuzed.com>'Satyanarayana.N' ; 
>><mailto:mp4-tech lists.mpegif.org>mp4-tech lists.mpegif.org
>>Sent: Monday, August 09, 2023 8:34 PM
>>Subject: RE: [Mp4-tech] supporting AMR, AAC audios and MPEG-4 
>>videos in QTfile format.
>>
>>QuickTime use .3gp or .mp4 file format to contain amr, aac, mpeg4 
>>video. .mov is dedicated for QuickTime audio/video itself.
>>
>>
>>From: Satyanarayana.N [<mailto:satya emuzed.com>mailto:satya emuzed.com]
>>Sent: Monday, August 09, 2023 10:40 AM
>>To: <mailto:mp4-tech lists.mpegif.org>mp4-tech lists.mpegif.org
>>Subject: [Mp4-tech] supporting AMR, AAC audios and MPEG-4 videos in 
>>QT file format.
>>
>>I am building an application which reads  movie files with extension ".mov".
>>I have downloaded quick time file format document from QT site.
>>But,these documents does not talk about atom hierarchies to be 
>>followed to support AMR,AAC audios and MPEG-4 videos.
>>Can you tell me the place where can I get the information, about 
>>details of these coded specific data in "stsd" atom of the file 
>>format.
>>
>>looking forward for your replay
>>
>>With Warm Regards,
>>Satya.
>>---------------------------------------------------------
>>Software Engineer, Systems
>>eMuzed India Pvt Ltd.
>>
>>e-mail   : <mailto:satya emuzed.com>satya emuzed.com
>>Tel      : +91 80 51269151 / 2 / 3 Ext : 2044
>>Fax      : +91 80 5203257
>>Mobile   : +91 9845550255
>>
>>
>>_______________________________________________
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>>
>>
>>
>>
>>_______________________________________________
>>NOTE: Please use clear subject lines for your posts. Include 
>>[audio, [video], [systems], [general] or another apppropriate 
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>>
>>Note: Conduct on the mailing list is subject to the Antitrust 
>>guidelines found at 
>><http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php>http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php
>>
>
>
>_______________________________________________
>NOTE: Please use clear subject lines for your posts. Include [audio, 
>[video], [systems], [general] or another apppropriate identifier to 
>indicate the type of question you have.
>
>Note: Conduct on the mailing list is subject to the Antitrust 
>guidelines found at 
>http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php

-- 
David Singer
Apple Computer/QuickTime
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