[MPlayer-users] Reencoding a broadcast HD-ATSC stream

[Vladimir Mosgalin]

Hi Philip Prindeville!

 On 2005.11.21 at 01:58:51 -0700, Philip Prindeville wrote next:

> x mencoder -quiet -sws 2 -oac copy -ovc lavc \
> -lavcopts vcodec=mpeg4:vbitrate=$bitrate:vpass=$pass:autoaspect \
> -vf crop=1920:1080,scale=1920:1080,pp=hb/vb/dr/al/lb \
> -tsprog $prog \

First, about quality.. why do you use pp filter after others? Place it
first. Don't use pp=al in encoding. Don't use pp=hb/vb/dr in favor of
pp=ac. Play with lb and other deinterlacing filters, maybe you'll like
pp=md or kerndeint better.

conclusion: something like pp=ac/lb,crop=...,scale=...
You may also think about denoising filter, something like hqdn3d=2:2:3
or stronger one.

About your problem: don't use bitrate of 20000. If you want to specify
2 mbit/s, use 2000. If you want to specify 20 mbit/s, use 20000000. Read
man page for details.

-- 

Vladimir