Automated Cutting and Transcoding Guide Using Mencoder

[-stattik-]

Is there a way to compress the video without comskip running first? I taped a SportsCenter and want to send a bit of the video to someone, but don't want to send it full sized. Comskip runs normally and works for me, I think it just didn't work because SportsCenter might have thrown off comskip. Anyway, how can I compress if comskip doesn't run first?

The script compresses the video with or without comskip first running. Dirmon is setup to look for the edl file. If you want to compress a video without creating an edl file, just drop the video on the script. Otherwise you can create a blank file and call it program.edl.

Hope this helps.

[5%NationofCasiotone]

The script compresses the video with or without comskip first running. Dirmon is setup to look for the edl file. If you want to compress a video without creating an edl file, just drop the video on the script. Otherwise you can create a blank file and call it program.edl.

Hope this helps.

Thanks. Dropping it on the script worked.

[unixdude]

Just downloaded everything and started up my first trial runs tonight, so nothing is finished... but here are some initial problems I encountered.

1) The site for comskip http://mk.kaashoek.com/comskip/ is unavailable... does anyone know if there is another site where I can download this program?

2) When I download mplayer from http://www.aziendeassociate.it/cd.asp?dir=/mplayer, I get an error when I drop the mpg on the bat file that says mencoder cannot find intl.dll

3) When I download mplayer from http://www.mplayerhq.hu/homepage/design7/dload.html the whole process starts (and is currently running), but I did receive the following error messages: (in BOLD)

MEncoder dev-CVS-050928-16:38-3.4.2 © 2000-2005 MPlayer Team
CPU: Advanced Micro Devices Athlon 4 /Athlon MP/XP Palomino (Family: 6, Step
: 2)
Detected cache-line size is 64 bytes
CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 0 SSE2: 0
Compiled with runtime CPU detection - WARNING - this is not optimal!
To get best performance, recompile MPlayer with --disable-runtime-cpudetecti
Warning streams need a type !!!!
success: format: 0 data: 0x0 - 0x0
MPEG-PS file format detected.
VIDEO: MPEG2 720x480 (aspect 2) 29.970 fps 5250.0 kbps (656.3 kbyte/s)
[V] filefmt:2 fourcc:0x10000002 size:720x480 fps:29.97 ftime:=0.0334
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 48000 Hz, 2 ch, s16le, 224.0 kbit/14.58% (ratio: 28000->192000)
Selected audio codec: [mp3] afm:mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
PACKET SIZE: 2048 bytes
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
==========================================================================
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
VDec: vo config request - 720 x 480 (preferred csp: Mpeg PES)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
Also try adding the scale filter, e.g. -vf spp,scale instead of -vf spp.
VDecoder init failed
Opening video decoder: [libmpeg2] MPEG 1/2 Video decoder libmpeg2-v0.4.0b
Selected video codec: [mpeg12] vfm:libmpeg2 (MPEG-1 or 2 (libmpeg2))
==========================================================================
Building audio filter chain for 48000Hz/2ch/s16le -> 0Hz/0ch/??...
Building audio filter chain for 48000Hz/2ch/s16le -> 48000Hz/2ch/s16le...
Writing AVI header...
Limiting audio preload to 0.4s
Increasing audio density to 4
VDec: vo config request - 720 x 480 (preferred csp: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
videocodec: libavcodec (720x480 fourcc=3267706d [mpg2])
Using constant qscale = 4.000000 (VBR)
New_Face failed. Maybe the font path is wrong.
Please supply the text font file (~/.mplayer/subfont.ttf).
subtitle font: load_sub_face failed.
INITIAL DELAY of 0 frames 0fps Trem: 0min 0mb A-V:-0.033 [0:0]
Pos: 0.7s 22f ( 0%) 0fps Trem: 0min 0mb A-V:-0.070 [0:127]
1 duplicate frame(s)!
Pos: 1.0s 32f ( 0%) 26fps Trem: 0min 0mb A-V:-0.070 [4626:128]
1 duplicate frame(s)!
Pos: 1.6s 49f ( 0%) 27fps Trem: 0min 0mb A-V:-0.067 [4748:127]
1 duplicate frame(s)!
Pos:6092.6s 182595f ( 0%) 37fps Trem: 0min 0mb A-V:-0.041 [3732:128]

Finally, this process has been running for over an hour and it is still reporting 0%, 0min, and 0mb!!! That can't be good...

[-stattik-]

2) When I download mplayer from http://www.aziendeassociate.it/cd.asp?dir=/mplayer, I get an error when I drop the mpg on the bat file that says mencoder cannot find intl.dll

What build did you dl? I'm using 11-23.

3) When I download mplayer from http://www.mplayerhq.hu/homepage/design7/dload.html the whole process starts (and is currently running), but I did receive the following error messages: (in BOLD)

Pos: 1.6s 49f ( 0%) 27fps Trem: 0min 0mb A-V:-0.067 [4748:127]
1 duplicate frame(s)!
Pos:6092.6s 182595f ( 0%) 37fps Trem: 0min 0mb A-V:-0.041 [3732:128]

Finally, this process has been running for over an hour and it is still reporting 0%, 0min, and 0mb!!! That can't be good...

Most of those error messages are standard but the codec ones should be cleaned up with the 11-23 build. It looks like the transcode was working but it couldn't figure out how long the original file was. Perhaps a timecode issue. It got to about 101 min accordig to your logfile.


I would suggest getting the 11-23 build, setting the script up in test mode, and then droping your file on it. You should get a 1 min file you can check for errors/quality. I'll also find the dvd script you PM'ed about.

[unixdude]

Somehow I grabbed the older of the two mplayer builds... thanks. The new build, 11-23, worked no errors, but I'm not sure about the output. In the script directory it created an mpg file, but in the portable directory it created an mp4 and a thm file. I got an avi file out of the build I downloaded from mplayerhq... What am I doing wrong?

[-stattik-]

Somehow I grabbed the older of the two mplayer builds... thanks. The new build, 11-23, worked no errors, but I'm not sure about the output. In the script directory it created an mpg file, but in the portable directory it created an mp4 and a thm file. I got an avi file out of the build I downloaded from mplayerhq... What am I doing wrong?

It looks like it's using the psp profile. Either set the script to use the STANDARD profile or another of your choosing.


Hope that helps.

[notderrick]

Is there any way to set up the script to check the size of the file and set a target 2-pass sized based on this information. I'd like to use 2-pass to get the best possible size to quality ratio, but don't want to fool with changing the size each time I encode. Since the files are pretty constant size per length, this seems like a possible way to set this up. Anyone tried something like this?

[unixdude]

I just sent -stattik- a couple script modifications that will automatically set the target size based on the size of the file that you are encoding. He is evaluating the code now. If he likes it, he may add it to his script. If not, I will be happy to post the code for individual use.

[tal56]

Hi guys,

I'd like to set this to run right after a show is recorded but without using dirmon, is this possible? Can I use one of the .bat files that run after a show is recorded, and how do I go about doing this?

Also, is there any progress on the target size being based on the origional size of the file? This would be great for having like half our shows encoded to 175, hour shows to 350, and movies to 700.

Thanks

[-stattik-]

Just rename the script postprocessing.bat after setting it up. It will work fine.

I'm working on the target-size script that unixdude wrote. I hope to finish it soon.