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XSLT 2.0 stylesheets for chapters to: cue sheets; shnsplit timecodes
This commit is contained in:
Moritz Bunkus
parent
1eea0bd871
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@ -1,5 +1,11 @@
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2011-11-04 Moritz Bunkus <moritz@bunkus.org>
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* examples: Added XSLT 2.0 stylesheets in the
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"examples/stylesheets" directory for turning Matroska chapters
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into cue sheet and split points for "shntool" (useful for
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situations in which you have e.g. a live recording from a concert
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including chapters and want to create one audio file per song).
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* mkvmerge: bug fix: Fixed reading VC1 video tracks from Matroska
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files that don't use VC1 start markers (0x00 0x00 0x01 ...).
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152
examples/stylesheets/chapters-to-cuesheet.xsl
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152
examples/stylesheets/chapters-to-cuesheet.xsl
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<?xml version="1.0" encoding="utf-8"?>
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<!--
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Chapters to cue sheet
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=====================
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This is a XSLT 2.0 stylesheet for turning the chapter format that mkvmerge
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understands into a cue sheet as used by e.g. CD recording software.
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You need a XSLT 2.0 compatible XSLT processor, e.g. Saxon-HE (see
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http://saxon.sourceforge.net/).
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Usage depends on your processor. For Saxon-HE on Linux this should work:
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$ java -classpath saxon9he.jar net.sf.saxon.Transform \
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-o:output-filename.cue \
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-xsl:chapters-to-cuesheet.xsl \
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input-filename.xml
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You have to extract the chapters from a Matroska file with mkvextract first if
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you want to turn the chapters included in one into a cue sheet.
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This can be useful if you want to turn an audio file contain in a Matroska
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file into one file per chapter (e.g. for music videos). For this you need both
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"chapters-to-cuesheet.xsl" and "chapters-to-shnsplit.xsl" as well as the
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"cuetools" (see https://github.com/svend/cuetools) and "shntool" (see
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http://etree.org/shnutils/shntool/) packages.
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Assumptions are (meaning: adjust these values in the commands):
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- the source file contains an audio track with track ID 2 of type FLAC,
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- the band is "Perpetuum Jazzile",
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- the album is "Live 2009",
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- the source file name is "source.mkv".
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Here we go:
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# 1. Extract audio track from Matroska file:
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$ mkvextract source.mkv tracks 2:source.flac
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# 2. Extract chapters from same file:
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$ mkvextract source.mkv chapters > chapters.xml
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# 3. Generate the split points used in step 4:
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$ java -classpath saxon9he.jar net.sf.saxon.Transform \
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-o:splitpoints.txt \
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-xsl:chapters-to-cuesheet.xsl \
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chapters.xml
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# 4. Split the audio file into multiple files:
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$ shnsplit -o flac source.flac < splitpoints.txt
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# 5. Generate the cue sheet used in step 6:
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$ java -classpath saxon9he.jar net.sf.saxon.Transform \
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-o:source.cue \
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-xsl:chapters-to-cuesheet.xsl \
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chapters.xml \
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artist="Perpetuum Jazzile" \
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album="Live 2009"
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# 6: Assign tags (artist and title):
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$ cuetag source.cue split-*.flac
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Written by Moritz Bunkus <moritz@bunkus.org>.
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-->
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<xsl:stylesheet version="2.0"
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xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
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xmlns:xs="http://www.w3.org/2001/XMLSchema">
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<xsl:param name="album" select="'ChangeMeAlbum'"/>
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<xsl:param name="artist" select="'ChangeMeAlbumArtist'"/>
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<xsl:param name="track-artist" select="if ($artist eq 'ChangeMeAlbumArtist') then 'ChangeMeTrackArtist' else $artist"/>
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<xsl:output method="text"/>
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<xsl:strip-space elements="*"/>
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<xsl:template match="/Chapters">
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<xsl:apply-templates select="EditionEntry"/>
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</xsl:template>
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<xsl:template name="timecode-to-ns" as="xs:integer">
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<xsl:param name="timecode" select="'0'"/>
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<xsl:choose>
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<xsl:when test="$timecode eq ''">
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<xsl:value-of select="0"/>
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</xsl:when>
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<xsl:when test="matches($timecode, '^\d+:\d+:\d+\.\d{9}$')">
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<xsl:analyze-string select="$timecode"
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regex="^ (\d+) : (\d+) : (\d+) \. (\d+) $"
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flags="x">
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<xsl:matching-substring>
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<xsl:value-of select=" (regex-group(1) cast as xs:integer) * 3600000000000
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+ (regex-group(2) cast as xs:integer) * 60000000000
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+ (regex-group(3) cast as xs:integer) * 1000000000
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+ (regex-group(4) cast as xs:integer)"/>
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</xsl:matching-substring>
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</xsl:analyze-string>
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</xsl:when>
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<xsl:when test="matches($timecode, '^\d+:\d+:\d+\.\d*$')">
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<xsl:call-template name="timecode-to-ns">
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<xsl:with-param name="timecode" select="concat($timecode, '0')"/>
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</xsl:call-template>
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</xsl:when>
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<xsl:when test="matches($timecode, '^\d+:\d+:\d+$')">
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<xsl:call-template name="timecode-to-ns">
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<xsl:with-param name="timecode" select="concat($timecode, '.')"/>
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</xsl:call-template>
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</xsl:when>
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<xsl:otherwise>
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<xsl:call-template name="timecode-to-ns">
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<xsl:with-param name="timecode" select="concat('0:', $timecode)"/>
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</xsl:call-template>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:template>
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<xsl:template match="EditionEntry">
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<xsl:text>PERFORMER "</xsl:text>
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<xsl:value-of select="$artist"/>
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<xsl:text>"
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TITLE "</xsl:text>
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<xsl:value-of select="$album"/>
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<xsl:text>"
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FILE "ChangeMe.mp3" MP3
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</xsl:text>
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<xsl:for-each select="ChapterAtom">
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<xsl:variable name="timecode" as="xs:integer">
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<xsl:call-template name="timecode-to-ns">
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<xsl:with-param name="timecode" select="ChapterTimeStart"/>
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</xsl:call-template>
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</xsl:variable>
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<xsl:text> TRACK </xsl:text>
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<xsl:number format="01" value="position()"/>
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<xsl:text> AUDIO
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PERFORMER "</xsl:text>
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<xsl:value-of select="$track-artist"/>
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<xsl:text>"
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TITLE "</xsl:text>
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<xsl:value-of select="ChapterDisplay[1]/ChapterString"/>
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<xsl:text>"
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INDEX 01 </xsl:text>
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<xsl:number format="01" value=" $timecode idiv 60000000000"/>
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<xsl:text>:</xsl:text>
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<xsl:number format="01" value="($timecode idiv 1000000000) mod 60"/>
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<xsl:text>:</xsl:text>
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<xsl:value-of select="($timecode mod 1000000000) * 75 idiv 1000000000"/>
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<xsl:text>
</xsl:text>
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</xsl:for-each>
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</xsl:template>
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</xsl:stylesheet>
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137
examples/stylesheets/chapters-to-shnsplit.xsl
Normal file
137
examples/stylesheets/chapters-to-shnsplit.xsl
Normal file
@ -0,0 +1,137 @@
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<?xml version="1.0" encoding="utf-8"?>
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<!--
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Chapters to shnsplit
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====================
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This is a XSLT 2.0 stylesheet for turning the chapter format that mkvmerge
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understands into a list of timecodes for the "shnsplit" tool from the
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"shntool" package (see http://etree.org/shnutils/shntool/). It allows you to
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split a large audio file into smaller ones, optionally encoding/decoding in
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the process.
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You need a XSLT 2.0 compatible XSLT processor, e.g. Saxon-HE (see
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http://saxon.sourceforge.net/).
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Usage depends on your processor. For Saxon-HE on Linux this should work:
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$ java -classpath saxon9he.jar net.sf.saxon.Transform \
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-o:splitpoints.txt \
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-xsl:chapters-to-shnsplit.xsl \
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input-filename.xml \
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artist="Name of the artist" \
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album="Name of the album"
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You have to extract the chapters from a Matroska file with mkvextract first if
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you want to turn the chapters included in one into split points.
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This can be useful if you want to turn an audio file contain in a Matroska
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file into one file per chapter (e.g. for music videos). For this you need both
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"chapters-to-cuesheet.xsl" and "chapters-to-shnsplit.xsl" as well as the
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"cuetools" (see https://github.com/svend/cuetools) and "shntool" (see
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http://etree.org/shnutils/shntool/) packages.
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Assumptions are (meaning: adjust these values in the commands):
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- the source file contains an audio track with track ID 2 of type FLAC,
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- the band is "Perpetuum Jazzile",
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- the album is "Live 2009",
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- the source file name is "source.mkv".
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Here we go:
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# 1. Extract audio track from Matroska file:
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$ mkvextract source.mkv tracks 2:source.flac
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# 2. Extract chapters from same file:
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$ mkvextract source.mkv chapters > chapters.xml
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# 3. Generate the split points used in step 4:
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$ java -classpath saxon9he.jar net.sf.saxon.Transform \
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-o:splitpoints.txt \
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-xsl:chapters-to-cuesheet.xsl \
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chapters.xml
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# 4. Split the audio file into multiple files:
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$ shnsplit -o flac source.flac < splitpoints.txt
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# 5. Generate the cue sheet used in step 6:
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$ java -classpath saxon9he.jar net.sf.saxon.Transform \
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-o:source.cue \
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-xsl:chapters-to-cuesheet.xsl \
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chapters.xml \
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artist="Perpetuum Jazzile" \
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album="Live 2009"
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# 6: Assign tags (artist and title):
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$ cuetag source.cue split-*.flac
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Written by Moritz Bunkus <moritz@bunkus.org>.
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-->
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<xsl:stylesheet version="2.0"
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xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
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xmlns:xs="http://www.w3.org/2001/XMLSchema">
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<xsl:output method="text"/>
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<xsl:strip-space elements="*"/>
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<xsl:template match="/Chapters">
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<xsl:apply-templates select="EditionEntry"/>
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</xsl:template>
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<xsl:template name="timecode-to-ns" as="xs:integer">
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<xsl:param name="timecode" select="'0'"/>
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<xsl:choose>
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<xsl:when test="$timecode eq ''">
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<xsl:value-of select="0"/>
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</xsl:when>
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<xsl:when test="matches($timecode, '^\d+:\d+:\d+\.\d{9}$')">
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<xsl:analyze-string select="$timecode"
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regex="^ (\d+) : (\d+) : (\d+) \. (\d+) $"
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flags="x">
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<xsl:matching-substring>
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<xsl:value-of select=" (regex-group(1) cast as xs:integer) * 3600000000000
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+ (regex-group(2) cast as xs:integer) * 60000000000
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+ (regex-group(3) cast as xs:integer) * 1000000000
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+ (regex-group(4) cast as xs:integer)"/>
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</xsl:matching-substring>
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</xsl:analyze-string>
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</xsl:when>
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<xsl:when test="matches($timecode, '^\d+:\d+:\d+\.\d*$')">
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<xsl:call-template name="timecode-to-ns">
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<xsl:with-param name="timecode" select="concat($timecode, '0')"/>
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</xsl:call-template>
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</xsl:when>
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<xsl:when test="matches($timecode, '^\d+:\d+:\d+$')">
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<xsl:call-template name="timecode-to-ns">
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<xsl:with-param name="timecode" select="concat($timecode, '.')"/>
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</xsl:call-template>
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</xsl:when>
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<xsl:otherwise>
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<xsl:call-template name="timecode-to-ns">
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<xsl:with-param name="timecode" select="concat('0:', $timecode)"/>
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</xsl:call-template>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:template>
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<xsl:template match="EditionEntry">
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<xsl:for-each select="ChapterAtom">
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<xsl:variable name="timecode" as="xs:integer">
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<xsl:call-template name="timecode-to-ns">
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<xsl:with-param name="timecode" select="ChapterTimeStart"/>
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</xsl:call-template>
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</xsl:variable>
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<xsl:if test="$timecode > 0">
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<xsl:number format="01" value=" $timecode idiv 60000000000"/>
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<xsl:text>:</xsl:text>
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<xsl:number format="01" value="($timecode idiv 1000000000) mod 60"/>
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<xsl:text>.</xsl:text>
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<xsl:number format="001" value="($timecode mod 1000000000) idiv 1000000"/>
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<xsl:text>
</xsl:text>
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</xsl:if>
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</xsl:for-each>
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</xsl:template>
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</xsl:stylesheet>
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