[FFmpeg-devel] [PATCH] h264 bitstream filter

Måns Rullgård mans
Thu Aug 30 12:08:54 CEST 2007


Benoit Fouet wrote:

> is there a function accessible to the bitstream filter than can get me
> the NALU type ? or do i have to do it on my own in the filter ?

The low 5 bits of the first byte of a NAL unit hold the type.

> i also think that i can "construct" the sps/pps NALU only once, instead
> of doing it every time, but i don't know how to do it, as bsfs don't
> have a cleanup function...

Well, prepending 00 00 00 01 isn't all that much work...

-- 
M?ns Rullg?rd
mans at mansr.com




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