[MPlayer-users] Desaturate video output

[Paolo Bolzoni]

I am using a nvidia (closed driver) in linux, I will check about this
PC to TV levels conversion thingy. Thanks.

However the movie I noticed the problem was Teenage Ninja Mutant
Turtles [2014] that is actually quite oversaturated also to begin
with; still I think in the TV is even moreso.



On Tue, Dec 30, 2014 at 11:18 PM, Vladimir Mosgalin
<mosgalin at vm10124.spb.edu> wrote:
> Hi Paolo Bolzoni!
>
>  On 2014.12.30 at 21:45:04 +0100, Paolo Bolzoni wrote next:
>
>> Sorry, I had a blindness attack until now. The option -saturation is
>> what I was looking for.
>>
>> On Tue, Dec 30, 2014 at 9:41 PM, Paolo Bolzoni
>> <paolo.bolzoni.brown at gmail.com> wrote:
>> > Dear list,
>> >
>> > Is there any filter that can change the colors on the fly? For some
>> > reason when I use my hdmi cable to see a movie on the TV the colors
>> > are too saturated.
>> >
>> > I would like to undo the effect a bit.
>
> Actually, in your case I'd suggest checking levelconv= option of gl
> driver. You can google about PC vs TV levels problem (e.g.
> http://madshi.net/htpc/page3.html is a good article).
>
> Though, the best way to display video is to set TV HDMI input to "PC
> mode" and video card HDMI output to RGB with PC (full range) levels.
> It's easy to do with ATI catalyst (closed source) driver, I'm not 100%
> sure about other configurations. For all other configurations, you are
> going to get either incorrect colors or degraded quality of output
> (crushed black/whites or banding or some other effects).
>
> If you need to change saturation in mplayer, it definitely means that
> something is set up incorrectly and you are sacrificing picture quality.
> You shouldn't need to change any settings like that if there are no
> extra color conversions taking place (except for single YUV->full range RGB
> conversion by mplayer in software, OpenGL shaders or hardware
> accelerated decoder).
>
> --
>
> Vladimir
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