[MEncoder-users] Cropping fails on DVD

[Grozdan]

2009/9/6 Jon Cosby <jon.l.cosby at gmail.com>:
> I'm backing up some DVDs. I'm using a different program to rip them. I did a
> test run on one chapter and got great results, although I got wide screen
> when I intended to get full screen. I then did the entire title,
>
> Pass 1:
> mencoder *.vob -vf crop=704:352:8:62,scale=640:480 -ovc xvid -xvidencopts
> bvhq=1:chroma_opt:quant_type=mpeg:bitrate=658:pass=1:threads=2 -oac copy -o
> /dev/null
>
> Pass 2:
> mencoder *.vob -vf crop=704:352:8:62,scale=640:480 -ovc xvid -xvidencopts
> bvhq=1:chroma_opt:quant_type=mpeg:bitrate=658:pass=2:threads=2 -alang en
> -oac mp3lame -lameopts br=96:cbr:vol=6 -o chinatown.avi
>
> This time, the cropping failed. Frustrating, as it took a few hours to
> finish the transcoding. Does it usually take this long to transcode a DVD,
> and why would the cropping fail on the full run? It even failed on the test
> chapter the second time around.

what do you mean by "crop failed"? I've never had crop fail on me in
all those years I've been encoding DVDs. You can find out the correct
crop areas by using -vf cropdetect then pass the values to the crop
filter

Yes, it takes a long time to encode a DVD using high encoder settings.
>
>
>
> Jon Cosby
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