[MPlayer-users] Re: Newbie problems starting mencoder

Anton anton_melser at paradise.net.nz
Fri Sep 26 07:42:05 CEST 2003


you two are incredible...

D Richard Felker III wrote:

>[Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
>On Thu, Sep 25, 2003 at 04:30:38AM -0500, Jonathan Rogers wrote:
>  
>
>>[Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
>>D Richard Felker III wrote:
>>    
>>
>>>Using -vf detc=dr=1 or -vf ivtc=1 with tv cam content (interlaced 50
>>>or 60 fps) will drop at least 1 out of every 5 "frames" (actually
>>>field pairs since frames don't exist), and additionally try to make
>>>progressive frames by rematching fields with less difference between
>>>them, which will reorder (and thus misorder) fields! So it's a very
>>>bad idea. Before selecting whether to encode as-is, deinterlace, or
>>>reverse telecine, you must be sure you know what kind of content
>>>you're dealing with! Actually the new vf_pullup can deal with mixed
>>>progressive/pulldown content properly, but it still could be a bad
>>>idea with true interlaced video...
>>>
>>>      
>>>
>>Of course it's bad to use detc or ivtc with interlaced video. That's why 
>>I said, "Specifically, one should only deinterlace TV sources." I went 
>>on to recommend using detc or ivtc *for film sources*. Please try to 
>>read a post before you go off on it. You wonder why I've gotten so angry 
>>at you before.
>>    
>>
>
>Sorry, I did misread.
>
>Rich
>
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