[Ffmpeg-devel] Re: [PATCH] x264 avc encoding, movenc avcC, ctts

Baptiste COUDURIER baptiste.coudurier
Mon Feb 20 13:51:01 CET 2006


Michael Niedermayer wrote:
> Hi
> 
> [...]
> 
> its exactly what the h.264 standard says it is and that is IIRC with
> startcodes

Ok, according to the specs, that means ffmpeg will consider bytestream
format the default, not transport packet format.

> [...]
> 
> stream copy (demuxer->muxer) with no codec inbetween must work so
> its the job of the mov muxer & demxuer to convert to standard h.264 video
> or the converstaion must be done in some intermediate layer like a AVParser
> 

Ah yes, of course, I will find the way to retrieve sps, pps from h264 in
avi stream. Mov muxer will convert to transport packet then.

Making AVI muxer adding start code and padding bytes is not possible ?
Im trying to find the fastest way to do both muxing.

Mov muxer would then decode_nal_units, and reencode them, cause it needs
size of each nal.

I really don't know much about AVParser, so I guess it will take some
time to submit a new patch. Do you have some advices and hints for me ?

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