02-23-2009
I'm with DukeNuke - periodic reboots have advantages, and show up problems. We take our boxes down over long (3 day) weekends, so it works out to several times per year.
However, we have 400+ blade servers running eithe Linux or Windoze - those are rebooted monthly.
If your grumps have left a box up for several years, taking it down has a higher probability of exposing problems, so in that case leave it alone. May be more trouble than you want. Older boxes are slower anyway - it may be possible that 4 years on a really old UNIX box is the same number of cpu cycles as you see on a new Linux dualcore PC in one month.
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LEARN ABOUT SUSE
yuvkineco
yuvkineco(1) MJPEG tools manual yuvkineco(1)
NAME
yuvkineco - revert 2-3 pulldown movie
SYNOPSIS
yuvkineco [options] [-C PATH]
yuvkineco [options] -O|N PATH
DESCRIPTION
yuvkineco reverts to original non-interlaced frames, from NTSC video which was film sourced and 2-3 pulled down. Input fps code must be
4(29.97fps), output fps code can be selected from 1(23.97fps) to 4(29.97fps). If 2, 3 or 4 selected, duplicated frames remain but they are
reverted to non-interlaced. If input was non-interlaced only remove duplicate frames. Interlaced frame detection may fail in conditions
like:
Pull down cycle changed (video editing).
Low quality pull down.
Motionless scene.
If -C PATH was specified, yuvkineco outputs 2-3 pull down cycle list to the file. You can edit this file by hand and feed it to yuvkineco
with -O or -N option to correct mistake of 1st yuvkineco. Try -C and see cycle list.
EXAMPLE #1: for 24p movie / automatically
lav2yuv 60i.eli |
yuvkineco -F 1 | yuv2lav -f a -I 0 -o 24p.avi
EXAMPLE #2: for 30p/24p mix / automatically
lav2yuv 60i.eli |
yuvkineco -F 4 | yuv2lav -f a -I 0 -o 30p.avi
EXAMPLE #3: for 24p movie / check and repair
lav2yuv 60i.eli |
yuvkineco -F 1 -C 60i.23c |
yuv2lav -f a -I 1 -o take1.avi
glav -F +n take1.avi # check and edit 60i.23c
lav2yuv take1.avi |
yuvkineco -F 1 -N 60i.23c |
yuv2lav -f a -I 0 -o take2.avi
EXAMPLE #4: for 24p movie / check and retry
lav2yuv 60i.eli |
yuvkineco -F 1 -C 60i.23c |
yuv2lav -f a -I 0 -o take1.avi
glav -F +n take1.avi # check and edit 60i.23c
lav2yuv 60i.eli |
yuvkineco -F 1 -O 60i.23c |
yuv2lav -f a -I 0 -o take2.avi
OPTIONS
yuvkineco accepts the following options:
-F FPSCODE
Set output fps code (default: same as input).
-C PATH Specify 2-3 pull down cycle list file name to write.
-O PATH Specify cycle list name to read with old yuv stream to retry.
-N PATH Specify cycle list name to read with new yuv stream to repair.
-S MIN Use yuvycsnoise(1) as preprocessor and specify minimum threshold.
-n LEVEL
Specify noise level of input (default: 10). This affects both pulldown cycle detection and deinterlacing.
-c THRESHOLD
Specify threshold to decide pictures in 2 frames are same (default: 4). yuvkineco compares several frames, searches pair of frame
they contain same pictures, to decide which frame should be dropped. If THRESHOLD is 0, pair which has smallest difference will be
selected. If 16, selected from pairs those have differences smaller than average.
-i PERMIL
yuvkineco deinterlaces each frame after 2-3 pulldown reverting process, specify how much pixels deinterlaced to decide to use or
not use deinterlacing result (default: 10). If PERMIL is 10 and 1% or more of pixels deinterlaced, deinterlacing result will be
used. If 0, always deinterlacing result will be used. If 1000, deinterlacing result will not be used, but deinterlacing process
will run on all of frames. To disable deinterlacing process, specify negative value.
-u Set interlace information in header of output to unknown (default: non-interlaced).
AUTHOR
yuvkineco was written by Kawamata/Hitoshi.
If you have questions, remarks, problems or you just want to contact the developers, the main mailing list for the MJPEG-tools is:
mjpeg-users@lists.sourceforge.net
For more info, see our website at
http://mjpeg.sourceforge.net/
SEE ALSO
mjpegtools(1), yuvycsnoise(1).
MJPEG Linux Square 5 February 2002 yuvkineco(1)