[MPlayer-users] Unsharp Mask - Faster/Multi-Threaded?

[galenz at zinkconsulting.com]

On Jan 16, 2008, at 7:24 AM, Vladimir Mosgalin wrote:

> Hi galenz at zinkconsulting.com!
>
> On 2008.01.15 at 06:26:11 -0800, galenz at zinkconsulting.com wrote next:
>
>> I'm trying to use the unsharp mask filter with 1080p video in  
>> mplayer.
>>
>> The problem is that the filter is too slow. It appears to run as a
>> single thread, which is maybe 20-40% short of realtime on my system
>
> Maybe multi-thread unsharp mask isn't really what you need, what you
> need is making video filters process images in separate thread (on
> separate core) than video decoding, since decoding 1080p uses a lot of
> cpu. On the other hand, now with 4-cores cpu becoming mainstream,
> forcing each filter into its own thread and even maybe in-filter  
> thread
> usage is desirable, too..
>
> -- 
>
> Vladimir

I'm actually already multi-threading the decoding of the 1080p video.  
I have tried from 1 to 4 threads, with the fast option as well. I am  
using no other filters.

Basically, it seems that the issue at hand is the rate at which the  
unsharp mask filter runs.

I'd really love an OpenGL customtex file that does an unsharp mask :)

-Galen