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 ;-)
fixerrors:--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)
disableerrormessagesfor-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)
disableanomalymessagesfor-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
fileoptions:-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 --acceptmp3,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
outputoptions:-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
commonoptions:-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
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