lav2mpeg(1)
NAME
lav2mpeg - easy conversion of lav files to mpeg
SYNOPSIS
lav2mpeg [ options ] lavfile1 [lavfile2 ... lavfileN]
DESCRIPTION
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), Mov
tar (.movtar), Quicktime (.qt/.mov) or editlist files so
long as they are all lavtools- readable (e.g. MJPEGencoded AVI/Quicktime/Movtar or DV type 2 AVI).
OPTIONS
-s/S Turn stereo off/on (default auto)
-k/K Turn keeping of raw files off/on (default off)
-f/F Turn use of Fifos off/on (default off)
-l/L Turn logging of entire process off/on (default off)
-n/N Turn "noisy logging" off/on (default off)
-y/Y Turn use of yuvdenoise off/on (default off)
-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
FILES
- ~/.lav2mpegrc
- user configuration file. It is bash sourceable, and
can modify any of the environment variables men
tioned in the ENVIRONMENT section, or set the
LAV2MPEG_OPTIONS variable to add default options.
ENVIRONMENT
- NICEVAL
- the nice value of each command, set using 'nice -n
command' - YUVSCALER
- modify which command is called for yuvscaler
- LAV2WAV
- modify which command is called for lav2wav
- MPLEX modify which command is called for mplex
- YUVDENOISE
- modify which command is called for yuvdenoise
- MPEG2ENC
- modify which command is called for mpeg2enC
- AUDIOENC
- audioenc is similar to those above, however, if it
is set to 'mp2enc' it will use mp2enc rather than
toolame, and set flags appropriotely. - NOISYLOGFILE
- set the file used for noisy logging (-N) defaults
to outputfile.log - QUIETLOG
- set the file used for quiet logging. defaults to
lav2mpeg.log if set to "" it will log only to
screen - LOGDATE
- defaults to 1, set to 0 to not have the date logged
in log or output (see man date for more info) - LOGDATESTR
- will pass this on to 'date' to describe what time
format to use. only used if LOGDATE is not 0 - LOGCOMMANDS
- if set to non-zero, will log to the quite log the
commands used. commands are always logged to NOI
SYLOGFILE if used - LOGONLY
- if set to non-zero, will only log the commands it
would use but not actually run any commands - LAV2MPEGRC
- the lav2mpegrc file. really only beneficial if set
from environment variable. - VCD_MEDIUM_BR
- video bitrate for mode=vcd_medium
- VCD_HIGH_BR
- video bitrate for mode=vcd_high
- SVCD_HIGH_BR
- video bitrate for mode=svcd_high
- SVCD_HIGH_QUAL
- quality used (-q 0-30 to mpeg2enc) for SVCD_HIGH
- SVCD_HIGH_BUFFSIZE
- buffsize (-V to mpeg2enc) used for svcd_high
defaults to 100 - EXTRA_LAV2YUV
- set extra command line arguments to lav2yuv, which
will be added on the end - EXTRA_YUVSCALER
- set extra command line arguments to yuvscaler,
which will be added on the end - EXTRA_MPEG2ENC
- set extra command line arguments to mpeg2enc, which
will be added on the end - EXTRA_LAV2WAV
- set extra command line arguments to lav2wav, which
will be added on the end - EXTRA_AUDIOENC
- set extra command line arguments to mp2enc or
toolame (depending on AUDIOENC), which will be
added on the end - EXTRA_MPLEX
- set extra command line arguments to mplex, which
will be added on the end - EXTRA_YUVDENOISE
- set extra command line arguments to yuvdenoise,
which will be added on the end
DIAGNOSTICS
To simply see the commands that lav2mpeg would have
called, run 'LOGONLY=1 lav2mpeg ...'
BUGS
Possibly Exist, please let the author know
AUTHOR
Scott Moser <smoser at brickies dot net>
EXAMPLES
- create a VCD complient mpeg regardless of input named
- file.mpg
lav2mpeg file.avi - create a SVCD high rate mpeg from input named out.mpg
lav2mpeg -o out.mpg -m svcd_high file.avi - use lav2yuv.new for instead of lav2yuv, and add the '-M
- MMX' flag to
yuvscaler:
LAV2YUV="lav2yuv.new" EXTRA_YUVSCALER="-M MMX" lav2mpeg - file.avi
- Please Read Other examples included in documentation for
- .lav2mpegrc
usage