[MPlayer-dev-eng] soft equalizer video filter

[Felix Buenemann]

On Wednesday 21 August 2002 11:30, D Richard Felker III wrote:
> Here's a quick implementation of a software equalizer
> (brightness/contrast only) for mplayer/mencoder. The function
> process() should be optimized and ideally use mmx, etc., but it works
> well enough. I use it with my g200 (no hardware eq), but it could also
> be useful for mencoder, for fixing movies encoded from tv/vhs/etc.
> with bad brightness and contrast, and/or for reducing the contrast
> slightly before encoding to improve quality/compression. Syntax is
> -vop eq[=brightness:contrast]. Normal keyboard controls also work for
> setting values interactively. As long as it's ok I'll commit to CVS
> soon.
hmm, just a question:
shouldn't brightness/contrast be independent of chrominance and thus work with 
all YUV formats (-> operate only on luminance)? Now you seem to only support 
YUV 4:2:0.
> Rich

-- 
Best Regards,
        Atmos
____________________________________________
- MPlayer Developer - http://mplayerhq.hu/ -
____________________________________________