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add documentation for flac's --picture option

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Josh Coalson
2006-09-25 05:14:50 +00:00
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The cuesheet file must be of the sort written by <a href="http://www.goldenhawk.com/cdrwin.htm">CDRwin</a>, <a href="http://www.dcsoft.com/prod03.htm">CDRcue</a>, <a href="http://www.exactaudiocopy.de/">EAC</a>, et al.
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<a name="flac_options_picture" />
<span class="argument">--picture=SPECIFICATION</span>
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Import a picture and store it in a <a href="format.html#def_PICTURE"><span class="code">PICTURE</span></a> metadata block. More than one <span class="argument">--picture</span> command can be specified. The <span class="argument">SPECIFICATION</span> is a string whose parts are separated by <span class="argument">|</span> (pipe) characters. Some parts may be left empty to invoke default values. The format of <span class="argument">SPECIFICATION</span> is<br /><br />
<tt>&nbsp;&nbsp;[TYPE]|MIME-TYPE|[DESCRIPTION]|[WIDTHxHEIGHTxDEPTH[/COLORS]]|FILE</tt><br /><br />
<span class="argument">TYPE</span> is optional; it is a number from one of:<br />
<tt><ul>
<li>0: Other</li>
<li>1: 32x32 pixels 'file icon' (PNG only)</li>
<li>2: Other file icon</li>
<li>3: Cover (front)</li>
<li>4: Cover (back)</li>
<li>5: Leaflet page</li>
<li>6: Media (e.g. label side of CD)</li>
<li>7: Lead artist/lead performer/soloist</li>
<li>8: Artist/performer</li>
<li>9: Conductor</li>
<li>10: Band/Orchestra</li>
<li>11: Composer</li>
<li>12: Lyricist/text writer</li>
<li>13: Recording Location</li>
<li>14: During recording</li>
<li>15: During performance</li>
<li>16: Movie/video screen capture</li>
<li>17: A bright coloured fish</li>
<li>18: Illustration</li>
<li>19: Band/artist logotype</li>
<li>20: Publisher/Studio logotype</li>
</ul></tt>
The default is 3 (front cover). There may only be one picture each of type 1 and 2 in a file.<br/><br />
<span class="argument">MIME-TYPE</span> is mandatory; for best compatibility with players, use pictures with MIME type <tt>image/jpeg</tt> or <tt>image/png</tt>. The MIME type can also be --&gt; to mean that <span class="argument">FILE</span> is actually a URL to an image, though this use is discouraged.<br /><br />
<span class="argument">DESCRIPTION</span> is optional; the default is an empty string.<br /><br />
The next part specfies the resolution and color information. If the <span class="argument">MIME-TYPE</span> is <tt>image/jpeg</tt>, <tt>image/png</tt>, or <tt>image/gif</tt>, you can usually leave this empty and they can be detected from the file. Otherwise, you must specify the width in pixels, height in pixels, and color depth in bits-per-pixel. If the image has indexed colors you should also specify the number of colors used. When manually specified, it is not checked against the file for accuracy.<br /><br />
<span class="argument">FILE</span> is the path to the picture file to be imported, or the URL if MIME type is --&gt;<br /><br />
For example, the specification <span class="argument">|image/jpeg|||../cover.jpg</span> will embed the JPEG file at <tt>../cover.jpg</tt>, defaulting to type 3 (front cover) and an empty description. The resolution and color info will be retrieved from the file itself.<br /><br />
The specification <span class="argument">4|--&gt;|CD|320x300x24/173|http://blah.blah/backcover.tiff</span> will embed the given URL, with type 4 (back cover), description "CD", and a manually specified resolution of 320x300, 24 bits-per-pixel, and 173 colors. The file at the URL will not be fetched; the URL itself is stored in the PICTURE metadata block.
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<a name="flac_options_sector_align" />