[FFmpeg-devel] Multichannel WavPack support anyone?

[Kostya]

On Sun, Jan 09, 2011 at 12:01:43PM +0200, Martin Storsj? wrote:
> On Sun, 9 Jan 2011, Kostya wrote:
> 
> > On Sat, Jan 08, 2011 at 09:37:55PM +0000, Carl Eugen Hoyos wrote:
> > > Kostya <kostya.shishkov <at> gmail.com> writes:
> > > 
> > > > While this works for WavPack, it breaks WavPack-in-Matroska.
> > > 
> > > You mean the patch would break currently working decoding of two channel wv in
> > > mkv?
> > 
> > yes
> 
> That would break upgrade scenarios where lavc is updated while lavf isn't, 
> too, right?

of course

> Could this extra prefix be signalled via some other avctx field (e.g. only 
> having it present if channels > 2), to keep the output of current muxers 
> compatible with future lavc? Or is this use case (wavpack in general) 
> uncommon enough not to care about that scenario?

Yes, it's easy to hack it to use old format for <= 2 channels but iam
too lazy to do that :P.
 
> // Martin