[FFmpeg-devel] H 264 File Structure Reference

Loren Merritt lorenm
Sat Jul 5 01:45:57 CEST 2008

On Thu, 3 Jul 2008, Grae Cullen wrote:

>    I am trying to figure out the header structure of the
> h.264 file format.  I am aware of the ITU standard, however,
> it is very difficult, and I was hoping some a little easier,
> and more understandable.
>    Although, the NAL structure seems clearly defined 7.3.1,
> the over structure of the file seems more cryptic.  Where is
> the file header defined, and where can i expect the first
> NAL unit to start at in a regular file.

H.264 isn't a file format. It doesn't define any structure higher than 
NAL, that's up to the container.

--Loren Merritt

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