[MPlayer-users] Quality of DVD rips

[j.a.l]

Jan Kroken wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> 
> Hi.
> 
> I've tried ripping a few DVD's with mencoder. Mostly, the quality is
> tolerable, but one of the DVD's was a concert DVD, and when it came to
> black shadows in front of blinking/moving bright colored light, the
> quality became totally crap (it looked like the resolution dropped to
> below 80x60). Is there a trick to avoid this?
> 
bad bitrate, some dvds are in 900, other need 1400,

> Also, I had to use 2/3 pass encoding using the libavcodec controller.
> I tried the first examples in section 2.4.2.1 of the encoding doc,
> but I had to stop the encoding when the result file passed 1 gb
> at about 10% encoded. That also happened on the 3-pass encoding
> when I explicit set the bitrate displayed for 650mb.
> 
no audio compressed

> In addition, I tried ripping tracks from a 5 track dvd, and only
> track 2 and 4 (specified as -dvd 3 / 5) came out ok, on the 3
> others, the sound was white noise.
> 
> All of this was with MPlayer-0.90pre9
> 

this is not mendatory but produce really good rip ( 2 cds rip )

"mplayer -dvd 1 -frames 0" ---> check for this line

DVD successfully opened!
Detected MPEG-PS file format!
VIDEO:  MPEG2  720x576  (aspect 3)  25.00 fps  10000.0 kbps (1250.0 kbyte/s)

don't ask why, but here, 1250, with lavc produce dvd quality -->

rm frameno.avi
mencoder -ovc frameno -oac mp3lame -lameopts cbr:br=192 -o frameno.avi 
<source, dvd chapter range or file, language !>
memcoder -oac copy -ovc lavc -lavcopts vcodec=mpeg4:vhq:vbitrate:<the 
bit rate, here 1250>:vpass=1 -o file_to_produce.avi <same source as above>
memcoder -oac copy -ovc lavc -lavcopts vcodec=mpeg4:vhq:vbitrate:<the 
bit rate, here 1250>:vpass=2 -o file_to_produce.avi <same source as above>

this is the basic, you could have sync error or garbage : frame rate to 
fix ( don't ask me, i rip sound to external mp3 ), read arch , this 
doesn't fix aspect ratio ( 1.71 for dvd, i apply it on playback ) - do 
not try "-vop scale 1024:576" this produce bad file, but scale it down 
in case... , read arch for how to put subtittle, deinterlace, scale... 
or apply them on playback

A+