mplex -S 790 -f 4 -o filename.mpg filename.m1v filename.mp2
Posted by: JoeDuncan on 09-04-2004.
First of all you will need the following tools:
avidemux http://fixounet.free.fr/avidemux/ which is the VirtualDub equivalent in Linux mjpegtools http://mjpeg.sourceforge.net/ which will actually split the files for you (it splits mpegs… but I'm getting ahead of myself…) vcdimager http://www.gnu.org/software/vcdimager/vcdimager.html which will prepare the VCD/SVCD images for you and last but not least: cdrdao http://cdrdao.sourceforge.net/ which will actually burn the CDs.
I have used this setup for awhile and it works beautifully for me. All of these pieces of software should be available as a binary package for your distribution.
Ok, the first thing you have to know is that (S)VCDs are MPEGs, not AVIs, so you have to convert from AVI to MPEG. This is where Avidemux comes in. You use it to save the audio and video into different streams (demultiplex) of the proper format to merge (multiplex) back in to an MPEG.
So, open Avidemux (I use version 2.0.24 so yours may be a bit different) and load your avi file (File->Open or the "Open" button on the toolbar).
Then click on the "Video Filter" button on the left.
In the "Video Filters" box, select either "SVCD res" or "VCD res" depending on which one you are going to make (I have found that a 700 mb avi splits almost evenly across 2 SVCDs).
Then click close.
Now click on the "Video Codex" button on the left toolbar. Select either "SVCD" or "VCD" for your codec and click "OK"
Then click on the "Video Process" button, this will tell Avidemux to only process the video.
Now click on "File->Save->Save Video" and enter "filename.m1v" for the file name to save as. Now sit back and wait, as this usually takes 2-3 hours on my P3 1.4 GHz machine (your mileage may vary - I usually do this part overnight)…
Ok, that takes care of splitting off (demultiplexing) the video. Now for the audio…
The first thing you want to do is to click on the "Info" button on the toolbar and then select the "audio" tab in the info box. If it says "variable" or "VBR" in there anywhere, then your AVI file is using variable bit rate audio, and you will need to build a timemap or you will have audio sync problems.. but don't worry, building a time map is easy, just select "Audio->Build VBR Time map". That will usually take about 10 minutes… Also take a note of the frequency of the audio.
Next, click on "Audio Filter" in the left toolbar. Select "Normalize" (to adjust the volume to a standard level) and then either no resampling, "44.1 to 48 kHz resampling" (usually this one as most AVIs are in 48000 hz frequency, or if your audio is already in 44100 or 48000hz frequency, enter "44100" in the "Resample to hz" box. Then click OK.
Ok, now click on "Audio Codec" on the left toolbar.
Select "FFmpeg mpeg audio" as your codec and then click "Configure"
Select a bit rate of 224kbits/second and stereo sound and click OK twice.
Now, click "Audio Process" on the left toolbar (to tell Avidemux to only process audio).
Then select "Audio->Save Audio" and enter "filename.mp2" as your audio stream file name and click ok. This will approx 30 minutes (again on my P3 1.4 GHz…)
Ok, now we have split our file we need to recreate the video as an mpeg. Close Avidemux and open up a console.
In the console (make sure you are in the right directory) type this:
mplex -S 790 -f 4 -o filename.mpg filename.m1v filename.mp2
What this says is to remultiplex your two streams into filetype 4 (-f 4) which is SVCD, with output file (-o) called "filename.mpg". The "-S 790" tells it to split the created MPEG into files that will each fit on a CD. (-S means size, although I'm not sure what the units are, it's not megabytes, but 790 fits perfectly onto one standard blank CD). IIRC it adds a "1" or "2" or "3" after the filename if it has to split them…
(-f 1 will tell it to make VCDs)
This should only take about 5 minutes.
Now, once you have your completed MPEGs, test them with your favorite video viewer. All should be well. If the audio is slightly out of sync, this can be corrected by deleting the audio track and recreating it with Avidemux, but using the "Time shift" filter option to shift the audio X milliseconds, then remultiplexing.
Ok, now you have your MPEG videos, you need to burn them to CD. So create the (S)VCD image like so (you will have to do them one at a time if your file has been split):
vcdimager -t svcd filename.mpg
This will create a file called "videocd.cue" which is the (S)VCD image. (Use "-t vcd20" to create VCDs).
Then you can burn your image like so:
cdrdao write --device /dev/scd0 videocd.cue
Now your SCSI dev file for your burner may be different, just sub yours in. Also, you may need to make your regular user part of your distros "CDRW" (or equivalent) user group in order to access the writer properly.
That should do it. Also, note that Avidemux can be called entirely from the command line (see their website for the appropriate switches for all the functions mentioned above) which should allow you to create a completely automated script to do all of this for you.
Avidemux is an awesome tool, it will also let you edit the AVIs themselves (remove bad frames, append videos etc…)
Good luck!
lav2mpeg is a shell script to ease the use of the mjpeg utilities, providing a convinient way to convert from MJPEG files to popular MPEG file formats. It supports output in VCD, medium and high rate VCD, SVCD, high rate SVCD, and generic mpeg1 and mpeg2
The input files may be any combination of AVI (.avi), Quicktime (.qt) or editlist files so long as they are all lavtools- readable (e.g. MJPEG-encoded AVI/Quicktime or DV type 2 AVI).
Wasn't able to get it working.
Usage: lav2mpeg [ -s/S -k/K -f/F -l/L -n/N -y/Y ] [ -m mode ] [ -e 0|1|2 ] [ -o outputFile ] [ -b vidbitrate ] [ -a audbitrate ] [ -q 0-30 ] [ -d XxY ] srcfile…
s/S - stereo : -s=off -S=on (default auto)
k/K - keep raw output files (.m1v, .m2v, .mp2) : -k=no -K=yes (default no)
f/F - use fifos : -f=no -F=yes (default no)
l/L - log all encoding : -l=no -L=yes (default no)
n/N - be noisy (don't hide output of tools) : -n=no -N=yes (default no)
y/Y - yuvdenoise : -y=don't use -Y=use (default e=1|2 use e=0 dont)
m - one of MODES (see below) (default vcd)
e - encoding quality : 0, 1, or 2 (default 2)
o - output file ( defaults to firstInputFileName.mpg )
b - video bitrate in kbps ( only used when -o is "mpeg1" or "mpeg2" )
a - audio bitrate in kpbs ( only used when -o is not "vcd*" )
q - quality for mpeg2enc ( only used when -o is "mpeg1" or "mpeg2" )
d - dimensions XxY ( only used when -o is "mpeg1" or "mpeg2" )
defaults to same as input
MODES:
vcd -- standard VCD (352x240 or 352x288)
vcd_medium -- 1550kbps video VCD (352x240 or 352x288)
vcd_high -- 1800kbps video VCD (352x240 or 352x288)
svcd -- standard SVCD (480x480 or 480x576)
svcd_high -- 3000kbps(max) vbr @qual=5 (480x480 or 480x576)
mpeg1 -- honor -a -b -q -d flags default resolution same as input
mpeg2 -- honor -a -b -q -d flags default resolution same as input
EXAMPLE:
VCD: lav2mpeg file.avi
- will create a VCD compatible mpeg named file.mpg
mpeg2: lav2mpeg -m mpeg2 -o output.mpg file.edl
- will create a mpeg2 with default bitrate in same res as input
mpeg1: lav2mpeg -a 160 -b 2110 -d 320x240 -m mpeg1 -o output.mpg file.edl
- will create a mpeg2 with videobitrate=2110 and audio=160
- and resolution 320x240
debug: export LOGONLY=1; lav2mpeg -m mpeg2 -o output.mpg file.edl
- will print out the commands it would use to do this, but
- not do anything
please see the script for more info and environment variables set/used
$ tcprobe -i test-lav2mpeg.avi
[tcprobe] RIFF data, AVI video
[avilib] V: 23.976 fps, codec=XVID, frames=70592, width=592, height=320
[avilib] A: 48000 Hz, format=0x2000, bits=0, channels=5, bitrate=384 kbps,
[avilib] 70582 chunks, 141325325 bytes, CBR
[tcprobe] summary for test-lav2mpeg.avi, (*) = not default, 0 = not detected
import frame size: -g 592x320 [720x576] (*)
frame rate: -f 23.976 [25.000] frc=1 (*)
audio track: -a 0 [0] -e 48000,0,5 [48000,16,2] -n 0x2000 [0x2000] (*)
bitrate=384 kbps
length: 70592 frames, frame_time=41 msec, duration=0:49:04.277
I don't think it is MJPEG-encoded AVI. This might be the reason that the following trials failed.
documented on: 2005.08.04
LOGONLY=1 lav2mpeg -N -F -K -m svcd test-lav2mpeg.avi 17:39:46 - being noisy - using fifos- saving raw files - mode=svcd - ++ WARN: [lavinfo] Input file test-lav2mpeg.avi is not in JPEG 4:2:2 or 4:2:0 format **ERROR: [lavinfo] File test-lav2mpeg.avi has 23.976000 frames/sec, choose norm with +[np] param 17:39:46 - 'lavinfo test-lav2mpeg.avi' died! exiting 17:39:46 - maybe you don't have lavinfo. or your input flags were wrong 17:39:46 - input files must be the last input on the command line
$ LOGONLY=1 LAVINFO='lavinfo +p' lav2mpeg -N -F -K -m svcd test-lav2mpeg.avi 17:41:38 - being noisy - using fifos- saving raw files - mode=svcd - ++ WARN: [lavinfo] Input file test-lav2mpeg.avi is not in JPEG 4:2:2 or 4:2:0 format 17:41:39 - can't do logonly with fifos, turning fifos off 17:41:39 - using mode=svcd, stereo=0 audio bpr=112 17:41:39 - beginning conversion of test-lav2mpeg.avi to test-lav2mpeg.mpg 17:41:39 - had 70592 to encode 17:41:39 - beginning video encoding 17:41:39 - COMMAND=nice -n 19 lav2yuv test-lav2mpeg.avi | nice -n 19 yuvdenoise | nice -n 19 yuvscaler -O SVCD -n p | nice -n 19 mpeg2enc -a 2 -f 4 -4 1 -2 1 -o test-lav2mpeg.m2v 17:41:39 - finished video encoding ( took 0:00:00 ) 17:41:39 - beginning audio encoding 17:41:39 - COMMAND=nice -n 19 lav2wav test-lav2mpeg.avi | nice -n 19 mp2enc -b 112 -e -m -r 44100 -o test-lav2mpeg.mp2 17:41:39 - finished audio encoding ( took 0:00:00 ) 17:41:39 - beginning multiplexing 17:41:39 - COMMAND=nice -n 19 mplex -f 4 -o test-lav2mpeg.mpg test-lav2mpeg.mp2 test-lav2mpeg.m2v 17:41:39 - finished multiplexing ( took 0:00:00 ) 17:41:39 - finished encoding (took 0:00:00)
$ LAVINFO='lavinfo +p' lav2mpeg -N -F -K -m svcd test-lav2mpeg.avi 17:45:16 - being noisy - using fifos- saving raw files - mode=svcd - ++ WARN: [lavinfo] Input file test-lav2mpeg.avi is not in JPEG 4:2:2 or 4:2:0 format 17:45:16 - using mode=svcd, stereo=0 audio bpr=112 17:45:16 - beginning conversion of test-lav2mpeg.avi to test-lav2mpeg.mpg 17:45:16 - had 70592 to encode 17:45:16 - beginning encoding with fifos COMMAND=nice -n 19 mplex -f 4 -o test-lav2mpeg.mpg test-lav2mpeg.mp2 test-lav2mpeg.m2v INFO: [yuvdenoise] ======================================================== INFO: [yuvdenoise] Y4M2 Motion-Compensating-YCrCb-Denoiser INFO: [yuvdenoise] ======================================================== INFO: [yuvdenoise] Version: MjpegTools 1.6.2 INFO: [yuvscaler] yuvscaler 1.6.2 (31-12-2003) is a general scaling utility for yuv frames INFO: [yuvscaler] (C) 2001-2003 Xavier Biquard <xbiquard@free.fr>, yuvscaler -h for help, or man yuvscaler INFO: [mplex] mplex version 1.6.2 (2.2.3 $Date: 2004/01/13 20:45:26 $) ++ WARN: [lav2wav] Input file test-lav2mpeg.avi is not in JPEG 4:2:2 or 4:2:0 format **ERROR: [lav2wav] File test-lav2mpeg.avi has 23.976000 frames/sec, choose norm with +[np] param ++ WARN: [lav2yuv] Input file test-lav2mpeg.avi is not in JPEG 4:2:2 or 4:2:0 format **ERROR: [lav2yuv] File test-lav2mpeg.avi has 23.976000 frames/sec, choose norm with +[np] param **ERROR: [yuvdenoise] Couldn't read YUV4MPEG header: system error (failed read/write)! **ERROR: [yuvscaler] Could'nt read YUV4MPEG header! **ERROR: [mp2enc] EOF in WAV header **ERROR: [mp2enc] failure reading WAV file INFO: [mpeg2enc] SETTING EXTENDED MMX for MOTION! INFO: [mpeg2enc] SETTING MMX for TRANSFORM! INFO: [mpeg2enc] SETTING EXTENDED MMX for PREDICTION! **ERROR: [mpeg2enc] Could not read YUV4MPEG2 header: system error (failed read/write)!
— and was hanging there forever, no cpu usage
$ LAVINFO='lavinfo +p' lav2mpeg -N -L -K -y -m svcd test-lav2mpeg.avi 18:13:47 - being noisy - logging all - saving raw files - not using yuvdenoise - mode=svcd - ++ WARN: [lavinfo] Input file test-lav2mpeg.avi is not in JPEG 4:2:2 or 4:2:0 format 18:13:47 - not using yuvdenoiser, dodenoise=0 18:13:47 - using mode=svcd, stereo=0 audio bpr=112 18:13:47 - logging everything to test-lav2mpeg.log 18:13:47 - beginning conversion of test-lav2mpeg.avi to test-lav2mpeg.mpg 18:13:47 - had 70592 to encode 18:13:47 - beginning video encoding COMMAND=nice -n 19 lav2yuv test-lav2mpeg.avi | nice -n 19 yuvscaler -O SVCD -n p | nice -n 19 mpeg2enc -a 2 -f 4 -4 1 -2 1 -o test-lav2mpeg.m2v INFO: [yuvscaler] yuvscaler 1.6.2 (31-12-2003) is a general scaling utility for yuv frames INFO: [yuvscaler] (C) 2001-2003 Xavier Biquard <xbiquard@free.fr>, yuvscaler -h for help, or man yuvscaler INFO: [mpeg2enc] SETTING EXTENDED MMX for MOTION! INFO: [mpeg2enc] SETTING MMX for TRANSFORM! INFO: [mpeg2enc] SETTING EXTENDED MMX for PREDICTION! ++ WARN: [lav2yuv] Input file test-lav2mpeg.avi is not in JPEG 4:2:2 or 4:2:0 format **ERROR: [lav2yuv] File test-lav2mpeg.avi has 23.976000 frames/sec, choose norm with +[np] param **ERROR: [yuvscaler] Could'nt read YUV4MPEG header! **ERROR: [mpeg2enc] Could not read YUV4MPEG2 header: system error (failed read/write)! 18:13:48 - finished video encoding ( took 0:00:01 - 70592.000 fps) 18:13:48 - beginning audio encoding COMMAND=nice -n 19 lav2wav test-lav2mpeg.avi | nice -n 19 mp2enc -b 112 -e -m -r 44100 -o test-lav2mpeg.mp2 ++ WARN: [lav2wav] Input file test-lav2mpeg.avi is not in JPEG 4:2:2 or 4:2:0 format **ERROR: [lav2wav] File test-lav2mpeg.avi has 23.976000 frames/sec, choose norm with +[np] param **ERROR: [mp2enc] EOF in WAV header **ERROR: [mp2enc] failure reading WAV file 18:13:48 - finished audio encoding ( took 0:00:00 ) 18:13:48 - beginning multiplexing COMMAND=nice -n 19 mplex -f 4 -o test-lav2mpeg.mpg test-lav2mpeg.mp2 test-lav2mpeg.m2v INFO: [mplex] mplex version 1.6.2 (2.2.3 $Date: 2004/01/13 20:45:26 $)
— and was hanging there forever, no cpu usage
documented on: 2005.08.02