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 Readme for:  Audio » Misc » checkmate.lha


Description: Checks MP3 files for errors
Download: checkmate.lha       (TIPS: Use the right click menu if your browser takes you back here all the time)
Size: 29kb
Version: 0.18
Date: 25 Nov 2008
Author: Sjoerd and many more, see readme. AmigaOS 4.x compile by Spot / Up Rough
Submitter: Spot / Up Rough
Email: spot/triad se
Homepage: http://checkmate.linuxonly.nl/
Category: audio/misc
License: Other
Distribute: yes
Min OS Version: 4.0
FileID: 4271
Comments: 0
Snapshots: 0
Videos: 0
Downloads: 59  (Current version)
392  (Accumulated)
Votes: 0 (0/0)  (30 days/7 days)

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Checkmate readme


Checkmate mpck checks mp3s. It scans the file to see if the frames are
where they are supposed to be, if the frame headers are correct  and  if 
the headers are consistent throughout the file. It gives some statistics
on the file like bitrate and length, and a conclusion whether the file is
good or bad.

MP3 checker is a Microsoft Windows interface for mpck. It also scans MP3
files and has a Explorer-like display which shows which files where
scanned and what the result was. MP3 checker was tested on Windows 2000
and should work on any Windows version.

--=[ USAGE ]=--

Usage: mpck [OPTION]... [FILE]...

   -v, --verbose        print some extra info
   -q, --quiet          print only Ok or Bad per file
   -B, --badonly only report bad files
Other options:
   -R, --recursive      check directories recursively
   -e, --extention=EXT  only check files ending on .EXT
   -r   short for -R -e mp3
   -m, --maxname=NUM  report bad for filenames which exceed NUM characters
   -n, --namecheck check for strange characters in the filename
   -h, --help           print this help, then exit
   -V, --version        print version information

--=[ OUTPUT ]=--

Occasionally, something goes wrong and mpck prints an error. It has one
of the following formats:
1) mpck: stat on blah failed
2) mpck:bla: foo bar error
3) mpck:bla:34003: yet another error

Number 1 indicates a general error. Number 2 means an error occured in file
bla. Number 3 says an error occured in file bla, at offset 34003 (decimal).

If all is well, mpck will output something like this:

SUMMARY: mp3/test.mp3
    version                       MPEG v1.0
    layer                         3
    bitrate                       128000 bps
    samplerate                    44100 Hz
    frames                        7271
    time                          3:09.936
    unidentified                  0 b (0%)
    errors                        none
    result                        Ok

--=[ EXIT STATUS ]=--

mpck returns one of the following values:

0               Everything went OK and no broken files were found.
1               Everything went OK, but at least one broken file was found.
2 (ENOENT)      File or directory not found, stat failed.
4 (EINTR)       The program received a SIGINT.
5 (EIO)         Read error.
12 (ENOMEM)     Malloc failed due to memory shortage.
21 (EISDIR)     The given file is a directory.
22 (EINVAL)     Invalid argument, no filename supplied.
36 (ENAMETOOLONG) File extention or file name is too long.

--=[ WORDLIST ]=--

ID3V1           Specifies if a ID3v1 tag is present in the file
ID3V2           Specifies if a ID3v2 tag is present in the file
average bitrate See: bitrate, vbr
bitrate         One second of sound is stored in this many bits
frames          Number of frames in the file
layer           MPEG layer   - 1, 2 or 3.
length          The length of a frame in bytes
offset          The position in bytes from the start of the file
result          Specifies if the file is correct or damaged
samplerate      The sound is sampled this many times per second
size            Size of the file in KiB (1 KiB = 1024 bytes)
stereo          Specifies wheter the file is stereo or mono
time            The duration of the soundfile
unidentified    This many bytes are not part of a MP3 frame or a ID3 tag
vbr             Variable bitrate, bitrate differs per frame
version         MPEG version - 1.0, 2.0 or 2.5

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