MP4 File Format Specification

Question

I am writing some code to parse MP4 files ...

Is there a free source to get documentation on the MP4 File Format Specification. So far I have only found an ISO document which I would need to purchase ISO PDF. Is MP4 Not an open standard ?

Tomer · Answer 1 · 2020-03-16T09:33:01.840

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Here's the specification of the ISO base format, and here is the MP4 file format specification, both defined as part of the ISO/IEC 14496 standard.

Also take a look at the QuickTime MP4 specification. It has a very clear explanation.

edited Mar 16 '20 at 09:33

answered Aug 02 '15 at 21:22

Tomer

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score 17 · Answer 2 · edited Nov 22 '16 at 20:46

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"ISO 14496-1 Media Format" gives a detailed description of the MP4 layout:

edited Nov 22 '16 at 20:46

the Tin Man

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answered Apr 10 '15 at 15:24

Alex

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score 17 · Answer 3 · edited Nov 22 '16 at 20:48

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The latest ISO doc is ISO/IEC 14496-12:2015. And you can download it at Licence Agreement... for free.

edited Nov 22 '16 at 20:48

the Tin Man

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answered Mar 30 '16 at 03:30

Akagi201

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MP4 File Format Specification

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