[x264-devel] Custom slice support

List, Peter Peter.List at t-systems.com
Tue Nov 13 17:49:49 CET 2007



> Hello Peter,
>   Have you tried the patch I sent to this mailing list that adds
> splitting each frame into NALs when its size is greater than a
> given programmable threshold?
> 
>
http://mailman.videolan.org/pipermail/x264-devel/2007-October/003694.htm
l
> 
>   I have been using that patch for our h264 transmission over lossy
> networks. It would be good to know if others use it and report any
> problems so I can fix it. Others using it would also give x264
> contributors more confidence before merging the patch.
> 
> Mojtaba Hosseini
> ______________________________________________

Hello Mojtaba,

No I haven't.
One important feature of slices is, that every slice is independently
decodeble, because:
1. there is no prediction over slice boundaries
2. EACH of the slice-headers contain ALL the information that was 
   formally called "Frame-header"
3. It also contains the address where it starts, so it can always be 
   placed at the right spot in the frame (even if slices at the top 
   of that frame are missing.

Does your patch provide that? In other words does it produce 
"real slices", or just NAL-chunks of a desired size?

Regards
Peter




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