MP3CHECK(1)

NAME
mp3check - check mp3 files for consistency

SYNOPSIS
mp3check [-03ABCEFGIKLMNPRSTWYZabcdefghlmopqrst] [--accept=LIST] [--alt-color] [--anomaly-check] [--any-bitrate] [--any-crc] [--any-emphasis] [--any-layer] [--any-mode] [--any-sampling] [--any-version] [--ascii-only] [--color] [--compact-list] [--cut-junk-end] [--cut-junk-start] [--cut-tag-end] [--dummy] [--dump-tag] [--dump-header] [--dump-tag] [--edit-frame-byte=P] [--error-check] [--error-check] [--filelist=FILE] [--fix-crc] [--fix-headers] [--help] [--ign-bitrate-sw] [--ign-constant-sw] [--ign-crc-error] [--ign-junk-end] [--ign-junk-start] [--ign-non-ampeg] [--ign-resync] [--ign-tag128] [--ign-truncated] [--list] [--log-file=FILE] [--max-errors=NUM] [--only-mp3] [--print-files] [--progress] [--quiet] [--raw-elem-sep=NUM] [--raw-line-sep=NUM] [--raw-list] [--recursive] [--reject=LIST] [--show-valid] [--single-line] [--version] [--xdev] [--] [FILES...]

DESCRIPTION
This manual page documents briefly the mp3check command. This manual page was written for the Debian GNU/Linux distribution because the original program does not have a manual page.

mp3check is a program that checks mp3 files for consistency and prints several errors and warnings. It lists stream attributes (color). Layer 1,2,3, mpeg1.0+2.0 are currently supported. CRC check for layer 3. mp3check is very useful for incomplete mp3 detection as it can be used to scan through your mp3 collection and find all mp3s that aren't perfect. Good for use with Napster and other bulk downloading of mp3s.

OPTIONS
These programs follow the usual GNU command line syntax, with long options starting with two dashes (`-'). Options can be specified in any order and mixed with files. Option scanning stops after a double dash (--) to allow files beginning with a dash. A summary of options is included below.

mode:

-l --list
    list parameters by examining the first valid header and size

-c --compact-list
    list parameters of one file per line in a very compact format: version (l=1.0, L=2.0), layer, sampling frequency [kHz] (44=44.1), bitrate [kbit/s], mode (js=joint stereo, st=stereo, sc=single channel, dc=dual channel), emphasis (n=none, 5=50/15 usecs, J=CCITT J.17), COY (has [C]rc, [O]riginal, cop[Y]right), length [min:sec], filename (poss. truncated)

-e --error-check
    check crc and headers for consistency and print several error messages

-m --max-errors=<int>
    with -e: set maximum number of errors to print per file (0==infinity) (range=[0..])

-a --anomaly-check
    report all differences from these parameters: layer 3, 44.1kHz, 128kbps, joint stereo, no emphasis, has crc

-d --dump-header
    dump all possible header with sync=0xfff

-t --dump-tag
    dump all possible tags of known version

--raw-list
    list parameters in raw output format for use with external programs

--raw-elem-sep=NUM
    separate elements in one line by char NUM (numerical ASCII code) (default="0x09")

--raw-line-sep=NUM
    separate lines by char NUM (numerical ASCII code) (default="0x0a")

--edit-frame-byte=P
    modify a single byte of a specific frame at a specific offset; B has the format 'frame,offset,byteval', (use 0xff for hex or 255 for dec or 0377 for octal); this mode operates on all given files and is useful for your own experiment with broken streams or while testing this toll ;-)

fix errors:

--cut-junk-start
    remove junk before first frame

--cut-junk-end
    remove junk after last frame

--fix-headers
    fix invalid headers (prevent constant parameter switching), implies -e, use with care

--fix-crc
    fix crc (set crc to the calculated one), implies -e, use with care (note: it is not possible to add crc to files which have been created without crc)

disable error messages for -e --error-check:

-G --ign-tag128
    ignore 128 byte TAG after last frame

-R --ign-resync
    ignore invalid frame header

-E --ign-junk-end
    ignore junk after last frame

-Z --ign-crc-error
    ignore crc errors

-N --ign-non-ampeg
    ignore non audio mpeg streams

-T --ign-truncated
    ignore truncated last frames

-S --ign-junk-start
    ignore junk before first frame

-B --ign-bitrate-sw
    ignore bitrate switching and enable VBR support

-W --ign-constant-sw
    ignore switching of constant parameters, such as sampling frequency

--show-valid
    print the message 'valid audio mpeg stream' for all files which error free (after ignoring errors)

disable anomaly messages for -a --anomaly-check:

-C --any-crc
    ignore crc anomalies

-M --any-mode
    ignore mode anomalies

-L --any-layer
    ignore layer anomalies

-K --any-bitrate
    ignore bitrate anomalies

-I --any-version
    ignore version anomalies

-F --any-sampling
    ignore sampling frequency anomalies

-P --any-emphasis
    ignore emphasis anomalies

file options:

-r --recursive
    process any given directories recursively (the default is to ignore all directories specified on the command line)

-f --filelist=FILE
    process all files specified in FILE (one filename per line) in addition to the command line

-A --accept=LIST
    process only files with filename extensions specified by comma separated LIST

-R --reject=LIST
    do not process files with a filename extension specified by comma separated LIST

-3 --only-mp3
    same as --accept mp3,MP3

--xdev
    do not descend into other filesystems when recursing directories (doesn't work in Cygwin environment)

--print-files
    just print all filenames without processing them, then exit

output options:

-s --single-line
    print one line per file and message instead of splitting into several lines

--no-summary
    suppress the summary printed below all messages if multiple files are given

-g --log-file=FILE
    print names of erroneous files to FILE, one per line

-q --quiet
    quiet mode, hide messages about directories, non-regular or non-existing files

-o --color
    colorize output with ANSI sequences

-b --alt-color
    colorize: do not use bold ANSI sequences

--ascii-only
    generally all unprintable characters in filenames etc are replaced by '!' (ASCII 0-31) and '?' (ASCII 127-159), with this option present the range ASCII 160-255 (which is usually printable: e.g. ISO-8859) is also printed as '?'

-p --progress
    show progress information on stderr

common options:

-0 --dummy
    do not write/modify anything other than the logfile

-h --help
    print this help message, then exit successfully

--version
    print version, then exit successfully

AUTHOR
This original manual page was written by Klaus Kettner <kk@debian.org>, for the Debian GNU/Linux system. The current version of this manpage is maintained by Johannes Overmann <overmann@iname.com>, the author of mp3check.