<p:declare-step xmlns:p="http://www.w3.org/ns/xproc" xmlns:px="http://www.daisy.org/ns/pipeline/xproc" xmlns:pf="http://www.daisy.org/ns/pipeline/functions" xmlns:d="http://www.daisy.org/ns/pipeline/data" xmlns:c="http://www.w3.org/ns/xproc-step" xmlns:cx="http://xmlcalabash.com/ns/extensions" xmlns:xs="http://www.w3.org/2001/XMLSchema" version="1.0" type="px:audio-transcode" name="main"> <p:documentation xmlns="http://www.w3.org/1999/xhtml"> <p>Transcode audio files.</p> </p:documentation> <p:input port="source"> <p:documentation xmlns="http://www.w3.org/1999/xhtml"> <p>Input fileset.</p> </p:documentation> </p:input> <p:option name="media-types" select="'audio/*'"> <p:documentation xmlns="http://www.w3.org/1999/xhtml"> <p>Space separated list of white-listed media types. Suppports the glob characters '*' and '?'.</p> <p>Matched files are expected to be audio files and stored on disk.</p> </p:documentation> </p:option> <p:option name="not-media-types" select="''"> <p:documentation xmlns="http://www.w3.org/1999/xhtml"> <p>Space separated list of black-listed media types. Suppports the glob characters '*' and '?'.</p> </p:documentation> </p:option> <p:option name="new-audio-file-type" required="true"> <p:documentation xmlns="http://www.w3.org/1999/xhtml"> <p>The desired file type of the transcoded audio files, specified as a MIME type.</p> </p:documentation> </p:option> <p:option name="new-audio-dir" required="false" select="''"> <p:documentation xmlns="http://www.w3.org/1999/xhtml"> <p>URI of the folder within the output fileset that should contain the transcoded audio files.</p> <p>If not specified or empty, will use the deepest common directory that contains all the matched files.</p> <p>The actual files will be stored in a temporary location.</p> </p:documentation> </p:option> <p:option name="temp-dir" select="''"> <p:documentation xmlns="http://www.w3.org/1999/xhtml"> <p>If not empty, this directory will be used to store audio files. The directory must not exist yet.</p> </p:documentation> </p:option> <p:output port="result" primary="true"> <p:documentation xmlns="http://www.w3.org/1999/xhtml"> <p>Copy of the input fileset with all the audio files that are matched by the "media-types" and "not-media-types" filters replaced by transcoded versions of those files.</p> </p:documentation> <p:pipe step="maybe-skip" port="result"/> </p:output> <p:output port="mapping"> <p:documentation xmlns="http://www.w3.org/1999/xhtml"> <p>A <code>d:fileset</code> document that contains the mapping from the original audio files (<code>@original-href</code>) to the transcoded versions (<code>@href</code>). The <code>d:file</code> elements can have an optional <code>d:clip</code> child with attributes <code>clipBegin</code>, <code>clipEnd</code>, <code>original-clipBegin</code> and <code>original-clipEnd</code>, to indicate if the audio contained in the original audio file starts at an offset within the transcoded audio file. The attributes values are positive and are expressed in seconds (with millisecond precision).</p> </p:documentation> <p:pipe step="maybe-skip" port="mapping"/> </p:output> <p:import href="http://www.daisy.org/pipeline/modules/file-utils/library.xpl"> <p:documentation> px:tempdir </p:documentation> </p:import> <p:import href="http://www.daisy.org/pipeline/modules/fileset-utils/library.xpl"> <p:documentation> px:fileset-filter px:fileset-apply px:fileset-join px:fileset-copy px:fileset-compose </p:documentation> </p:import> <cx:import href="http://www.daisy.org/pipeline/modules/file-utils/uri-functions.xsl" type="application/xslt+xml"> <p:documentation> pf:normalize-uri pf:longest-common-uri </p:documentation> </cx:import> <px:fileset-filter name="input-audio"> <p:with-option name="media-types" select="$media-types"/> <p:with-option name="not-media-types" select="$not-media-types"/> </px:fileset-filter> <p:choose name="maybe-skip"> <p:when test="not(//d:file)"> <p:output port="result" primary="true"/> <p:output port="mapping"> <p:inline><d:fileset/></p:inline> </p:output> <p:sink/> <p:identity> <p:input port="source"> <p:pipe step="main" port="source"/> </p:input> </p:identity> </p:when> <p:otherwise> <p:output port="result" primary="true"> <p:pipe step="move-to-new-audio-dir" port="result"/> </p:output> <p:output port="mapping"> <p:pipe step="mapping" port="result"/> </p:output> <p:group name="transcode-files"> <p:output port="result" primary="true"/> <p:output port="mapping"> <p:pipe step="xslt" port="secondary"/> </p:output> <p:xslt name="xslt"> <p:input port="stylesheet"> <p:document href="audio-transcode.xsl"/> </p:input> <p:with-param name="new-audio-file-type" select="$new-audio-file-type"/> <p:with-param name="new-audio-dir" select="xs:anyURI(string(/*))"> <p:pipe step="temp-dir" port="result"/> </p:with-param> <p:with-param name="temp-dir" select="xs:anyURI(string(/*))"> <p:pipe step="temp-dir" port="result"/> </p:with-param> </p:xslt> <p:sink/> <px:fileset-apply name="apply-to-fileset"> <p:input port="source.fileset"> <p:pipe step="main" port="source"/> </p:input> <p:input port="mapping"> <p:pipe step="xslt" port="secondary"/> </p:input> </px:fileset-apply> <p:sink/> <px:fileset-join> <p:input port="source"> <p:pipe step="apply-to-fileset" port="result.fileset"/> <p:pipe step="xslt" port="result"/> </p:input> </px:fileset-join> </p:group> <p:group name="move-to-new-audio-dir"> <p:output port="result" primary="true"/> <p:output port="mapping"> <p:pipe step="move" port="mapping"/> </p:output> <p:variable name="target" select="pf:normalize-uri( if ($new-audio-dir!='') then $new-audio-dir else pf:longest-common-uri(//d:file/resolve-uri(@href,base-uri(.))))"> <p:pipe step="input-audio" port="result"/> </p:variable> <p:delete> <p:with-option name="match" select="concat( 'd:file[not(resolve-uri("./",resolve-uri(@href,base-uri(.)))=("', pf:normalize-uri(string(/*)), '","', $target, '"))]' )"> <p:pipe step="temp-dir" port="result"/> </p:with-option> </p:delete> <px:fileset-copy flatten="true" dry-run="true" name="move"> <p:with-option name="target" select="$target"/> </px:fileset-copy> <p:sink/> <px:fileset-apply> <p:input port="source.fileset"> <p:pipe step="transcode-files" port="result"/> </p:input> <p:input port="mapping"> <p:pipe step="move" port="mapping"/> </p:input> </px:fileset-apply> </p:group> <p:sink/> <px:fileset-compose name="mapping"> <p:input port="source"> <p:pipe step="transcode-files" port="mapping"/> <p:pipe step="move-to-new-audio-dir" port="mapping"/> </p:input> </px:fileset-compose> <p:sink/> <p:choose> <p:when test="not($temp-dir='')"> <p:in-scope-names name="vars"/> <p:template> <p:input port="template"> <p:inline><c:result>{$temp-dir}/</c:result></p:inline> </p:input> <p:input port="parameters"> <p:pipe step="vars" port="result"/> </p:input> <p:input port="source"> <p:empty/> </p:input> </p:template> </p:when> <p:otherwise> <px:tempdir delete-on-exit="true"/> </p:otherwise> </p:choose> <p:identity name="temp-dir"/> <p:sink/> </p:otherwise> </p:choose> </p:declare-step>