mp3check - check mp3 files for consistency

mp3check [-03ABCEFGIKLMNPRSTWYZabcdefghlmopqrst] [--accept=LIST] [--alt-color] [--anomaly-check] [--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...]

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.

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 unpritable 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

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.