[MEncoder-users] two pass encoding with pullup

[Winterbird]

D Richard Felker III wrote:

>On Tue, Apr 05, 2005 at 08:58:31AM +0200, Winterbird wrote:
>  
>
>>D Richard Felker III wrote:
>>
>>    
>>
>>>On Tue, Apr 05, 2005 at 07:07:34AM +0200, Winterbird wrote:
>>> 
>>>
>>>      
>>>
>>>>the video looks good when I watch it in mplayer, but I'm beginning to
>>>>think that pullup doesn't always drop the same frames, and that's why
>>>>the video becomes strange... I guess I'll just have to experiment a
>>>>little to see if I can get it working with pullup or any other ivtc...
>>>>Thanks for the help.
>>>>   
>>>>
>>>>        
>>>>
>>>Are you following the directions that say you MUST ALWAYS use the
>>>softskip filter with pullup for encoding? If you're going to ask
>>>questions here you REALLY need to show us the full exact command lines
>>>you're using at the very least.
>>>
>>>Rich
>>> 
>>>
>>>      
>>>
>>yes, sorry, I just wanted to know if it was a common problem... Anyway,
>>first pass:
>>
>>mencoder -noidx -nosound -noaspect dvd://1 -chapter 16-20 -ovc lavc -vf
>>pullup,softskip,phase,hqdn3d=12:0:10,unsharp=c7x7:0.5:l7x7:0.5,crop=704:464:6:8,scale=640:-3
>>-ofps 24000/1001 -lavcopts
>>qns=3:cmp=2:subcmp=6:preme=2:predia=3:dia=3:last_pred=3:vmax_b_frames=1:mv0:cbp:qprd:trell:preme=2:keyint=300:v4mv:mbd=2:vqscale=2:vpass=1
>>-o /dev/null
>>
>>second pass:
>>
>>mencoder -noidx -nosound -noaspect dvd://1 -chapter 16-20 -ovc lavc -vf
>>pullup,softskip,phase,hqdn3d=12:0:10,unsharp=c7x7:0.5:l7x7:0.5,crop=704:464:6:8,scale=640:-3
>>-ofps 24000/1001 -lavcopts
>>qns=3:cmp=2:subcmp=6:preme=2:predia=3:dia=3:last_pred=3:vmax_b_frames=1:mv0:cbp:qprd:trell:preme=2:keyint=300:v4mv:mbd=2:vbitrate=1145:vpass=2
>>-o finished.avi
>>
>>the difference is only that I added qns=3 on the second pass, and the
>>bitrate (vbitrate=1145 instead of vqscale=2).
>>    
>>
>
>Why are you using phase after pullup? This makes no sense
>whatsoever...
>
>Rich
>  
>
That's true, but when I looked at a previous encode with pullup I didn't
think it was that good, it still had some interliced frames, so I
thought phase might would make them less noticable.