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Last updated on 2008-03-18.
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encode2mpeg is a front end to MPlayer/MEncoder and mjpegtools. It is able to convert any kind of video that mplayer can play in a format suitable for VCD/SVCD/DVD, plus it can create DivX avi.
his program has evolved from another one called mencvcd. The idea of mencvcd is the following: '_'_'_'_ | | source video -> | mplayer | -> final video (DVD) | mjpegtools | (S/VCD) |'_'_'_'_|
One serious problem I found using mencvcd is that it fails to deal with source videos that have video frame rate different from the one of the target mpeg stream. If you have a video with variable frame rate, non standard (i.e. 15fps) frame rate, some exotic NTSC telecined dvd or simply you want to convert from PAL to NTSC or vice versa, then mencvcd will not help you.
I kept all the features and many options of mencvcd and I added many more. Here is a list of the main differences:
encode2mpeg version 0.4.2 Copyright (C) 2004-2005 Giacomo Comes
Usage: encode2mpeg options source
Options:
-h|-help
-l|-longhelp
-quiet
-o|-output <filename>
-a <n> [Direct,Mpeg]
-mpegfixaspect [pad|crop] [Direct,Mpeg]
-abr <n>
-asr <n> [Direct,Mpeg]
-vbr <n>
-vfr <n>
-n|-video-norm <n|p|s> [Direct,Mpeg]
-p|-pulldown [Direct]
-vcd [Direct,Mpeg]
-svcd [1-2] [Direct,Npeg]
-svcdht [Direct,Mpeg]
-dvd [1-5] [Direct,Mpeg]
-dvdaudiolang <code,code,...> [Direct,Mpeg]
-addchapter <time,time,...|step-total|copy> [Direct,Mpeg]
-nochapter [Direct,Mpeg]
-addsub <sid0,sid1,...|copy> [Direct,Mpeg]
-addsdx <sid0,sid1,...> [Direct,Mpeg]
-addsla <sla0,sla1,...> [Direct,Mpeg]
-cdburndevice <dev> [Direct,Mpeg]
-dvdburndevice <dev> [Direct,Mpeg]
-cdi <path to CD-i application files> [Direct,Mpeg]
-avi [DivX]
-dvd2dvd [Mpeg]
-stdvid <n> [Direct,Indirect,Mpeg]
-mpeg [Mpeg]
-fast [Mpeg]
-qmatrix <kvcd|tmpgenc|default|hi-res>
-mpeg1vbr [Direct,Mpeg]
-mpegmbr <n> [Mpeg]
-mp1 [mp2enc|encode|copy] [Direct,Mpeg]
-mp2 [mp2enc|toolame|mencoder|copy] [Direct,Mpeg]
-mp3 [lame|mencoder|copy] [Direct,Mpeg]
-ac3 [mencoder|copy] [Direct,Mpeg]
-dts [copy] [Direct,Mpeg]
-lpcm [Direct,Mpeg]
-acopy [Mpeg]
-mpegchannels <1-6> [Direct,Mpeg]
-normalize [Direct,Mpeg]
-volume <n>
-multiaudio <aid0,aid1,...>
-noscale [Direct,Mpeg]
-monochrome
-sync-offset <n> [Direct,Mpeg]
-toolopts <yuvdenoise|yuvscaler|mpeg2enc|mplex|mplayer|vcdimager|
-split <n> [Direct]
-nosplit [Direct]
-avisplit <n> [DivX]
-resume
-keep
-blank [Direct,Mpeg]
-nowait [Direct,Mpeg]
-cacheonly
-avionly [DivX]
-streamonly [Direct,Mpeg]
-mpegonly [Direct,Mpeg]
-imageonly [Direct,Mpeg]
-isoonly [Direct,Mpeg]
-encode <n|n:m:i[,b]> [DivX,Indirect,Mpeg]
-turbo <0-1> [DivX,Mpeg]
-bframes <0-4> [DivX,Mpeg]
-vbitrate <n> [DivX,Mpeg]
-vcustom <libavcodec options> [DivX,Mpeg]
-acustom <mp3lame options> [DivX,Mpeg]
-encsid <sid0,sid1,...>
-encsdx <sid0,sid1,...>
-encsla <sla0,sla1,...>
-ofps <n> [DivX]
-usesbr [1-6|>100] [DivX,Mpeg]
-setaspect [n] [DivX]
-crop <w:h:x:y> [DivX]
-autocrop [DivX]
-cpu <n>
-interlaced
-fixavi [DivX]
-video <source stream> <options> [Direct,Mpeg]
-cache <dir> <mount point>
-savecache [iso] [raid]
-removecacheOptions valid for DivX Mode are also valid for Indirect Mode ( avi stream) Options valid for Direct Mode are also valid for Indirect Mode (mpeg stream) If nothing is specified, the option is valid for every Mode Arguments enclosed in [ ] are optional
encode2mpeg has different working modes, which are:
Mpeg Mode
-avionly -encode -mpeg The running Mode is selected x x DivX Mode by the presence or the Direct Mode absence of the options x Indirect Mode avionly, encode, mpeg x x Mpeg Mode
DivX Mode => Indirect Mode ( avi stream) Direct Mode => Indirect Mode (mpeg stream)
Options valid for DivX Mode are also valid for Indirect Mode ( avi stream) Options valid for Direct Mode are also valid for Indirect Mode (mpeg stream) If nothing is specified, the option is valid for every Mode
-encode <n|n:m:i[,b]> [DivX,Indirect,Mpeg]
the parameter n:m:i selects the audio codec, video codec and
number of pass for mencoder, possible values are:
n m i
0 copy 0 copy 1
1 pcm 1 libavcodec/mpeg 2
2 mp3lame/fast 2 as 1 + mbd=2 3
3 mp3lame/standard 3 as 1 + compression opts
4 libavcodec/mp2 4 as 1 + quality opts
5 libavcodec/mp3
6 libavcodec/ac3 for m=[2-4] and i>1 turbo is on
7 toolame/mp2
witn n=[3-7] b specify the audio bit rate
when the parameter is a single number it is a shortcut:
1 = 3:2:1 - 1 pass,fast,almost good quality, big size
2 = 3:2:2 - 2 pass,not fast,good quality, big size
3 = 3:3:2 - 2 pass,slow,average quality, small size (default)
4 = 3:4:2 - 2 pass,slow,very good quality, huge size-o|-output <filename>
filename of the output stream
-n|-video-norm <n|p|s> [Direct,Mpeg]
set the video norm of the VCD/SVCD/DVD-vcd [Direct,Mpeg]
generate VCD compliant frames on output (default)
-svcd [1-2] [Direct,Npeg]
generate SVCD compliant frames on output; the following resolutions
are possible: PAL NTSC
1 480x576 480x480
2 352x288 352x240
default is 1
-svcdht [Direct,Mpeg]
enable the VCD header trick; this trick could allow to play SVCD on
DVD player that does not support SVCD. For more details see:
http://www.videohelp.com/svcd
-dvd [1-5] [Direct,Mpeg]
generate DVD compliant frames on output; the following resolutions
are possible: PAL NTSC
1 720x576 720x480
2 704x576 704x480
3 480x576 480x480 (non standard DVD-SVCD)
4 352x576 352x480
5 352x288 352x240
default is 1-avionly [DivX]
create only the avi stream
-streamonly [Direct,Mpeg]
create only the elementary stream (video and audio)
-mpegonly [Direct,Mpeg]
create the mpeg stream (and remove the elementary stream)
-imageonly [Direct,Mpeg]
create the binary image (S/VCD) or the DVD filesystem
-isoonly [Direct,Mpeg]
create the DVD iso image; normally it is never created-mpeg [Mpeg]
set Mpeg Mode; it generates VCD/SVCD/DVD compliant frames on
output using mencoder instead of mpeg2enc; it will set -nosplit
-mpeg1vbr [Direct,Mpeg]
produce a VCD/MPEG-1 variable bit rate stream, the output stream
is smaller and a complete movie could fit in one VCD; check if
your hardware player support variable bit rate VCD
-fast [Mpeg]
if you create the VCD/SVCD/DVD mpeg stream with mencoder (Mpeg
Mode) and you have only one mp2/mp3 audio stream, you can skip
the multiplexing step with this option.0.4.2 2005-03-18 0.4.1 2005-03-12 0.4.0 2005-03-04 0.3.5 2005-01-27 0.3.4 2005-01-03 0.3.3 2004-12-21 0.3.2 2004-12-09 0.3.1 2004-11-28 0.3.0 2004-11-03
I generally prefer to write shell scripts in a syntax conformant to the POSIX/SUS standard. This way, they are easily portable across operating systems, I only need to refer to a text to write my code (http://www.opengroup.org/onlinepubs/009695399/toc.htm), not to various existing implementations/versions of a specific shell (and set of utilities), and it makes it easier for other people to understand the code and contribute to it.
I did several tests with that new version with various POSIX conformant shells (dash, pdksh, zsh, bash).
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