[FFmpeg-devel] [PATCH] h264 bitstream filter

Måns Rullgård mans
Wed Sep 5 20:07:29 CEST 2007

Benoit Fouet <benoit.fouet at purplelabs.com> writes:

> Michael Niedermayer wrote:
>> patch ok if it works
>> [...]
> i have one remaining question: should mp4 files contain AUD nal units
> too or have i missed something (again :) ) ?
> if i'm right, it seems that our muxer doesn't handle it, as i don't get
> the aud frames...
> if i'm wrong, i'll have to add the aud in the filter too.

AUD (Access Unit Delimiter) is an optional NAL unit with the sole
purpose of marking the start of a new frame (access unit).  There
would be no sense in using it in formats like mp4 that signal frame
boundaries by other means.

M?ns Rullg?rd
mans at mansr.com

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