[FFmpeg-devel] [PATCH] h264 bitstream filter

Aurelien Jacobs aurel
Mon Sep 3 15:49:34 CEST 2007


On Mon, 03 Sep 2007 15:15:29 +0200
Benoit Fouet <benoit.fouet at purplelabs.com> wrote:

> M?ns Rullg?rd wrote:
> > Benoit Fouet wrote:
> >   
> >> M?ns Rullg?rd wrote:
> >>     
> >>> Michael Niedermayer wrote:
> >>>
> >>>       
> >>>> On Mon, Sep 03, 2007 at 10:10:04PM +1000, mark cox wrote:
> >>>>
> >>>>         
> >>>>> On 03/09/07, Benoit Fouet <benoit.fouet at purplelabs.com> wrote:
> >>>>>
> >>>>>           
> >>>>>> mark cox wrote:
> >>>>>>
> >>>>>>             
> >>>>>>>> if someone has a better name for this filter, i'd be happy to apply it
> >>>>>>>> too :)
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>                 
> >>>>>>> How would you explain what it does in english?
> >>>>>>>
> >>>>>>>
> >>>>>>>               
> >>>>>> it converts h264 encapsulated in ISO base media file format to h264
> >>>>>> elementary stream.
> >>>>>> it seems a bit long as a name :)
> >>>>>>
> >>>>>> i don't know if avc is used only for h264 in 'mp4' container or not...
> >>>>>> if it is so, maybe a name like: avc_to_h264 could be used ?
> >>>>>> i must admit i don't really know what to use...
> >>>>>>
> >>>>>>             
> >>>>> h264_iso_to_h264_es ?
> >>>>> h264_mp4_to_h264_es ?
> >>>>>
> >>>>>           
> >>>> h264_iso2es ?
> >>>> h264_mp4_to_es ?
> >>>>
> >>>>         
> >>> The term "elementary stream" is not formally defined in relation to H.264.
> >>>
> >>>       
> >> do you feel "h264_iso2es" is correct enough to be used in ffmpeg ?
> >>     
> >
> > Both input and output are ISO formats, and ES is not defined, so no,
> > I don't think that's a good name.
> >
> >   
> 
> what about h264_mp4toannexB ?
> (and please, if you have a suggestion, feel free to share it)

I haven't read the code and I don't know much about the subject,
but from previous discussion, here is what comes to my mind:
  h264_nal2annexB
Well, annexB is not a very nice name, but if there is no better name
clearly associtated to this, then just use annexB.

Aurel




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