Question

So I’ve never used XSLT before, so this is probably a very simple problem. Basically, my job is to chapter videos, and the program we use generates an XML document containing pairs of timecodes (where the chapter starts, in milliseconds) and a title (the name of the chapter). What I want to do is rearrange it into a format that Final Cut Pro understands.

The program generates data in the following format:

<marker time="27">
<label>Introduction</label>
</marker>

and Final Cut needs it in this format (with the timecode converted into frames, aka divided by 33.3):

<marker>
    <name>Introduction</name>
    <comment> &lt;CHAPTER>
    </comment>
    <color>
        <alpha>0</alpha>
        <red>127</red>
        <green>0</green>
        <blue>255</blue>
    </color>
    <in>27</in>
    <out>-1</out>
</marker>

The code I’ve written is:

<xsl:template match="/">
<xsl:for-each select="captionate/markers/marker">
<marker>
    <name><xsl:value-of select="label"/></name>
    <comment> &lt;CHAPTER>
    </comment>
    <color>
        <alpha>0</alpha>
        <red>127</red>
        <green>0</green>
        <blue>255</blue>
    </color>
    <in><xsl:value-of select="@time"/></in>
    <out>-1</out>
</marker>
</xsl:for-each>
</xsl:template>

but it’s not working (I’m not even entirely sure how to implement it). Any help would be greatly appreciated!

Answer 1

I have completed your sample data (perhaps it now matches yours exactly?):

<?xml version="1.0" encoding="utf-8"?>
<captionate>
<markers>
<marker time="27">
<label>Introduction</label>
</marker>
</markers>
</captionate>

Here is the code again, only minimal changes (shows the division):

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" >
<xsl:template match="/">
<xsl:for-each select="captionate/markers/marker">
<marker>
    <name><xsl:value-of select="label"/></name>
    <comment> &lt;CHAPTER&gt;
    </comment>
    <color>
        <alpha>0</alpha>
        <red>127</red>
        <green>0</green>
        <blue>255</blue>
    </color>
    <in><xsl:value-of select="@time div 33.33"/></in>
    <out>-1</out>
</marker>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>

Running this through xsltproc gives the expected results.