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<div class="document" id="miragextract">
<h1 class="title">miragextract</h1>
<h2 class="subtitle" id="extract-audio-and-data-tracks-from-cd-images">extract audio and data tracks from CD images</h2>
<table class="docinfo" frame="void" rules="none">
<col class="docinfo-name" />
<col class="docinfo-content" />
<tbody valign="top">
<tr class="manual-section field"><th class="docinfo-name">Manual section:</th><td class="field-body">1</td>
</tr>
<tr class="manual-group field"><th class="docinfo-name">Manual group:</th><td class="field-body">Urchlay</td>
</tr>
<tr><th class="docinfo-name">Date:</th>
<td>2020-05-13</td></tr>
<tr><th class="docinfo-name">Version:</th>
<td>0.2.0</td></tr>
</tbody>
</table>
<!-- RST source for miragextract(1) man page. Convert with: -->
<!-- rst2man.py miragextract.rst > miragextract.1 -->
<!-- rst2man.py comes from the SBo development/docutils package. -->
<!-- note to self: don't forget to check the generated man and html pages -->
<!-- into git since we don't want to require our users to have rst2man.py. -->
<div class="section" id="synopsis">
<h1>SYNOPSIS</h1>
<p>miragextract [<strong>-l</strong>] [<strong>-s</strong>] [<strong>-t</strong> track] [<strong>-b</strong> base] [<strong>-f</strong> fmt] [<strong>-p</strong> passwd] [<strong>-q</strong> quality ] <strong>image-file</strong></p>
</div>
<div class="section" id="description">
<h1>DESCRIPTION</h1>
<p>Extracts data and audio tracks from any CD image supported by libmirage.
Data tracks are written as-is, and audio tracks can be written as-is or
converted to wav, flac, or ogg/vorbis (via libsndfile).</p>
</div>
<div class="section" id="options">
<h1>OPTIONS</h1>
<table class="docutils option-list" frame="void" rules="none">
<col class="option" />
<col class="description" />
<tbody valign="top">
<tr><td class="option-group">
<kbd><span class="option">--help</span></kbd></td>
<td>Print short usage string.</td></tr>
<tr><td class="option-group">
<kbd><span class="option">-a</span></kbd></td>
<td>Extract only audio tracks. Default is to extract all tracks.</td></tr>
<tr><td class="option-group">
<kbd><span class="option">-b <var><name></var></span></kbd></td>
<td>Sets the base filename for the output files. Default is <strong>track</strong>.
Can be prefixed with a directory to write files in that dir,
but the dir must already exist (example: -b extracted/track). See
also the -n option.</td></tr>
<tr><td class="option-group">
<kbd><span class="option">-d</span></kbd></td>
<td>Extract only data tracks. Default is to extract all tracks.</td></tr>
<tr><td class="option-group">
<kbd><span class="option">-f</span></kbd></td>
<td>Sets the format and filename extension for the output audio files.
Choices are <strong>wav</strong>, <strong>ogg</strong>, <strong>flac</strong>, <strong>cdda</strong> (raw CD audio).
Default is <strong>wav</strong>.</td></tr>
<tr><td class="option-group">
<kbd><span class="option">-l</span></kbd></td>
<td>Lists all tracks in the image without extracting them. Currently
does not combine with -t, -a, -d as expected (you can't list only
audio tracks with "-l -a" for instance).</td></tr>
<tr><td class="option-group">
<kbd><span class="option">-L</span></kbd></td>
<td>Lists all tracks in the image without extracting them, with
extra detail (sector sizes, counts, and exact byte sizes).</td></tr>
<tr><td class="option-group">
<kbd><span class="option">-n</span></kbd></td>
<td>Set the base filename to the input filename, minus its extension.
E.g. for foo.cue, this is the same as saying "-b foo". Beware of
using input filenames with directory separators in them: the output files
will be written in the same dir as the input file. Hopefully you
have permission to write there.</td></tr>
<tr><td class="option-group">
<kbd><span class="option">-p <var><passwd></var></span></kbd></td>
<td>Password for encrypted images. Note that anyone who can run <strong>ps(1)</strong>
on your system may be able to view the password. Also note that password
support in miragextract is <em>completely</em> untested: I have no
encrypted images to test with.</td></tr>
<tr><td class="option-group">
<kbd><span class="option">-q <var><qual></var></span></kbd></td>
<td>Quality setting for ogg and flac output files. Integer from 0
to 10. Default is 7. Has very little effect on flac, and no effect on
wav or cdda output.</td></tr>
<tr><td class="option-group">
<kbd><span class="option">-s</span></kbd></td>
<td>Swaps bytes in audio tracks. Use this if your audio files sound
like white noise or gibberish.</td></tr>
<tr><td class="option-group">
<kbd><span class="option">-t <var><track></var></span></kbd></td>
<td>Takes a track number (1-99), and extracts only that one track.
Default behaviour is to extract all tracks.</td></tr>
</tbody>
</table>
<p>Option bundling is not supported (e.g. <strong>-d</strong> <strong>-s</strong> is OK, <strong>-ds</strong> is wrong).</p>
<p>Always include a space between an option and its argument (e.g. <strong>-b foo</strong>, not <strong>-bfoo</strong>).</p>
</div>
<div class="section" id="notes">
<h1>NOTES</h1>
<p>Image-file is e.g. a .cue, .ccd, .nrg, .mds, or anything else supported
by libmirage. See the README for your version of libmirage for details.</p>
<p>Output files will be overwritten if they already exist, with no prompting.</p>
<p>Output audio files are named track01.wav, track02.wav, etc by default. The
'track' part of the name can be set with -b, and the extension will
match the encoding set with -f. Note that mp3 is NOT a valid -f option.
If you need mp3, extract to .wav and then use a tool like lame or ffmpeg
to convert to mp3.</p>
<p>Output data tracks will be named to end in '.iso' by default, or '.hfs'
if they look like Apple disk images (HFS or HFS+), or '.hfs.iso' for
"hybrid" images that can be mounted as either ISO9660 or HFS/HFS+
(such as Blizzard's combined Mac/PC releases).</p>
<p>Images with multiple sessions should be supported, but have not been
tested. Track numbering just continues, so a disc with 2 sessions of
8 files each will have tracks numbered 1 to 16 as far as the -t option
and the output filenames are concerned.</p>
<p>When extracting raw CD audio tracks, you can test them by listening to
them with the <em>play</em> command from <em>sox</em>. Try:</p>
<pre class="literal-block">
play -x -t cdda track01.cdda
</pre>
<p>...possibly without the -x option if you're on a big-endian platform.</p>
<!-- other sections we might want, uncomment as needed. -->
<!-- FILES -->
<!-- ===== -->
<!-- ENVIRONMENT -->
<!-- =========== -->
</div>
<div class="section" id="exit-status">
<h1>EXIT STATUS</h1>
<p>As usual, 0 for success, non-zero for failure.</p>
</div>
<div class="section" id="bugs">
<h1>BUGS</h1>
<p>The -p option should prompt for a password.</p>
<p>Not exactly a bug, per se, but miragextract can't deal with multi-file
images where one of the files is missing or truncated. This is because
libmirage validates the image when it's loaded, and is unlikely to change.</p>
<p>Related to the above, there's no attempt to recover from errors.
miragextract exits as soon as it encounters an error of any kind.</p>
<p>libmirage (as of version 3.2.4) also doesn't really support "wav/cue"
images (or ogg/cue, mp3/cue, etc). If you try to use miragextract on one,
you'll get advised to try audiocue2bincue(1). When (if) libmirage gains
support for these, miragextract should handle them just fine.</p>
<!-- EXAMPLES -->
<!-- ======== -->
</div>
<div class="section" id="author">
<h1>AUTHOR</h1>
<p>miragextract was written by B. Watson <<a class="reference external" href="mailto:yalhcru@gmail.com">yalhcru@gmail.com</a>> and
released under the WTFPL: Do WTF you want with this.</p>
</div>
<div class="section" id="see-also">
<h1>SEE ALSO</h1>
<p>cuerecover(1), cdemu(1), bchunk(1)</p>
</div>
</div>
</body>
</html>
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