[MPlayer-users] deinterlacer performance?

[Moritz Bunkus]

Hi.

While testint A'rpi's DVD a/v synch patch I noticed that deinterlacing
kicks my processor to its limits. Therefore I'd like to know if this is
normal (well NO I won't file a complete bugreport - I'm not even
remotely sure that it is a bug at all...).

My system is a Celeron 733 MHz, Matrox MGA400 with -vo xmga,
SoundBlaster don'taskmethecorrectmodel with -ao oss and the kernel's
emu10k1. It can play everything back normally without reaching 100% CPU
usage. (oh, mplayer is CVS from 10:00 CET)

If I play back my Dave Matthews Band DVD with

mplayer -dvd-device `pwd`/DMB_PAL/ -dvd 1 -chapter 11

everything is ok and mplayer uses approx. 60% of my CPU time. But the
image is interlaced, so I tried adding '-vop pp=lb' and '-vop pp=li'.
The image WAS properly deinterlaced, but mplayer now needs 100% of my
CPU time, and audio/video sync is not good anymore.

Reading the man page implies that there is a set of default pp filters
(de) so I tried to deactivate them. Here are some of the command lines
I tried:

mplayer -dvd-device `pwd`/DMB_PAL/ -dvd 1 -chapter 11
60%

mplayer -dvd-device `pwd`/DMB_PAL/ -dvd 1 -chapter 11 -vop pp=lb
100%

mplayer -dvd-device `pwd`/DMB_PAL/ -dvd 1 -chapter 11 -vop pp=li
100%

mplayer -dvd-device `pwd`/DMB_PAL/ -dvd 1 -chapter 11 -vop pp
100%

mplayer -dvd-device `pwd`/DMB_PAL/ -dvd 1 -chapter 11 -vop pp=-de
100%

mplayer -dvd-device `pwd`/DMB_PAL/ -dvd 1 -chapter 11 -vop pp=-de/lb
100%

mplayer -dvd-device `pwd`/DMB_PAL/ -dvd 1 -chapter 11 -vop pp=' '
60%

mplayer -dvd-device `pwd`/DMB_PAL/ -dvd 1 -chapter 11 -vop pp='lb/ '
60%

Is this the 'normal' way to deactivate the default filters? Is the last
command line even using the lb filter?

-- 
 ==> Ciao, Mosu (Moritz Bunkus)