[MPlayer-dev-eng] [DOCS] question: tvinput.xml

[Dmitry Baryshkov]

Hello,
D Richard Felker III wrote:

>On Sun, Apr 20, 2003 at 07:58:36PM +0200, Arpi wrote:
>  
>
>>Hi,
>>
>>    
>>
>>>Just was translating and found such a strange thing (in a third example
>>>of capturing):
>>>mencoder -tv on:driver=v4l:width=768:height=576 \
>>>     -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=900 \
>>>     -oac mp3lame -lameopts cbr:br=64 \
>>>     -vf crop=720:544:24:16,pp=lb -o output.avi
>>>   ^^^^^^^^^^^^^^^^^^^^^^^
>>>
>>>My question is: Mustn't it be so:
>>>-vf  pp=lb,crop=720:544:24:16
>>>?
>>>      
>>>
>>'lb' is a deinterlacer, which doesn't need teh qscale info, so it works
>>after crop/expand like transdormations (but doens't work after scale!)
>>and putting it after crop is even faster as it doens't have to process the
>>image parts being cropped out.
>>    
>>
>
>It can be used after scale if you're only scaling horizontally (very
>common for anime which needs to be scaled from 720x480 to 640x480) or
>if you're just using it as a lowpass filter rather than a
>deinterlacer.
>
Thank you for explanations.

>
>Rich
>
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---
With best wishes
Dmitry