[MPlayer-users] Confused about deinterlacing and scaling
*
afe0108 at yahoo.com
Wed Jul 28 09:36:19 CEST 2004
Hello, I'm about to spend 14+ days encoding some DVDs of television
shows and it would be *fantastic* if someone could glance at my
options and point out anything wrong (from past history I'm positive
I must be doing at least a couple things wrong).
In particular I'm confused about the pp to use for deinterlacing.
It sounds like pp=lb is best in theory but I have to say that pp=ci
looks a lot less blurry.
Also I'm not clear on whether (or how) to scale after deinterlacing
and cropping.
Anyway here are some relevant lines from the mplayer header:
VIDEO: MPEG2 720x480 (aspect 2) 29.970 fps 9800.0 kbps
Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
VO: [xv] 720x480 => 720x540 Planar YV12
Maybe the 720x540 means it was originally PAL TV?
And here are the full 2-pass commands I was planning on using:
mencoder -aid 128 -oac copy -ovc lavc
-lavcopts mbd=2:mv0:trell:cbp:precmp=2:cmp=2:subcmp=2:
vmax_b_frames=1:predia=2:dia=2:preme=2:vme=4:
v4mv:vbitrate=868:vpass=1
-vf pp=lb,crop=712:480:4:0,scale=640:480,hqdn3d
-ofps 29.970 -o /dev/null movie.vob
mencoder -aid 128 -oac copy -ovc lavc
-lavcopts mbd=2:mv0:trell:cbp:precmp=2:cmp=2:subcmp=2:
vmax_b_frames=1:predia=2:dia=2:preme=2:vme=4:
v4mv:vbitrate=868:vpass=2
-vf pp=lb,crop=712:480:4:0,scale=640:480,hqdn3d
-ofps 29.970 -o movie.avi movie.vob
Thanks!
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