[FFmpeg-devel] Droping old scaler

Aurelien Jacobs aurel
Fri Sep 5 02:26:36 CEST 2008


Michael Niedermayer wrote:

> On Thu, Sep 04, 2008 at 04:33:38PM -0700, Baptiste Coudurier wrote:
> > Hi Michael,
> > 
> > Michael Niedermayer wrote:
> > > Hi
> > > 
> > > I will remove the old scaler as soon as the regression tests pass with
> > > swscale. We have had 2 scalers for long enough and it caused enough problems
> > > with noone working on fixing anything. Keeping 2 scalers causes time to be
> > > wasted on maintaining both ...
> > 
> > I agree with this.

+1

> > Im clearly not happy with the GPL state of libswscale, and I'd like
> > corresponding part of the code to be isolated so it can be easier to
> > reimplement them, I might have a look at it.

+1

> > IIRC SIMD is GPL, the old scaler does not have SIMD anyway, can we
> > emphasize which part is GPL exactly ? This code is old...
> 
> > If nobody wants to isolate GPL parts exactly, well I will vote for
> > _removing_ GPL parts.
> 
> I vote for keeping the asm optimzations.

Sure. Even if they are GPLed, as long as they can be disabled, and cause
no trouble (except slowness) when using only the LGPLed code, there is
no reason to drop them.

Aurel




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