[MPlayer-dev-eng] [PATCH] pc2tv/tv2pc conversion

[Nico Sabbi]

Michael Niedermayer wrote:

>Hi
>
>On Thursday 08 July 2004 08:36, Nico Sabbi wrote:
>  
>
>>Il gio, 2004-07-08 alle 02:36, Michael Niedermayer ha scritto:
>>    
>>
>>>Hi
>>>
>>>On Wednesday 07 July 2004 19:53, Nico Sabbi wrote:
>>>      
>>>
>>>>This patch extends vf_yuvcsp.c to rescale luma and chroma when
>>>>converting from tv->pc and viceversa.
>>>>
>>>>Now the filter accepts an optional parameter which can be "pc2tv",
>>>>"tv2pc" or "clamp" (the default, old algorithm).
>>>>
>>>>It's implemented as a LUT for performance reasons.
>>>>
>>>>As far as I understand how CCIR601 works, this code seems to be
>>>>correct, but I wish someone more familiar with colorspace conversions
>>>>will give it a look.
>>>>        
>>>>
>>>did u look at the tables? dont u think the pc2tv tables look strange?
>>>      
>>>
>>because of these sudden jumps from 0xd9 to the top?
>>
>>0xd7, 0xd8, 0xd8, 0xd9, 0xeb, 0xeb, 0xeb, 0xeb,
>>    
>>
>yes
>
>[...]
>  
>

right, 1000l to me. What can you tell me about the dithering you were 
talking about in your previous mail?
I never made anything of that kind.

Thanks,
       Nico