[FFmpeg-devel] [PATCH] lavfi: reimplement MPlayer's af_pan filter for libavfilter.

Nicolas George nicolas.george at normalesup.org
Thu Nov 17 19:04:37 CET 2011

Le septidi 27 brumaire, an CCXX, Clément Bœsch a écrit :
> I think you can just say "ported from MPlayer by Clément, and rewritten
> from scratch by Nicolas" ;)
> You did much more work on this than I do :)

I am not so sure: I did parsing and numeric manipulations, that is "classic"
work. You did the integration with lavfi, which involves understanding the

> > +pan=stereo:FL<FL+0.5*FC+0.6*BL+0.6*SL:FR<FR+0.5*FC+0.6*BR+0.6*SR

> Does the syntax allow some spacing? for instance between the ':'?

Yes, except possibly before the first one. Do you think it would be better
to include an example with spacing?

> Any reason to go up to 63 ATM?

Do yo see any reason not to? SWR_CH_MAX=16 was too low anyway, as we have
named channels up to id #30.


  Nicolas George
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