TTML data for TimedText captions problem

Aug 6, 2010 at 7:33 AM
Hello I'm trying to display subtitles with SMFPlayer. The subtitles are delivered in manifest file as base64 encoded data inside "f" elements of a text stream. I can see that the base64 data is properly decoded to XML string and are delivered to InStreamTimedTextPlugin (I can see that in DataReceived event). But then I got "Parsing of DFXP data failed: TimedTextMarkerParser.ParseMarkerCollection received invalid input" on logging console. How exactly the XML for subtitle markers should look like? I tried the example "tt" node from here with no luck.
Aug 9, 2010 at 9:41 AM

Eventually I figured it out. It seems that the subtitle region has to be defined. The example XML should look like:

<?xml version="1.0" encoding="utf-8" ?>
<tt xml:lang="" xmlns="" xmlns:tts="">
      <region xml:id="default region">
        <style tts:backgroundColor="Black"/>
        <style tts:color="White"/>
        <style tts:fontSize="14px"/>
        <style tts:textAlign="center"/>
  <body region="default region">
    <div xml:id="d1" begin="0s" end="5s">
      <p xml:id="p1"><span tts:color="Red">Highlighted text</span><br/>More text...</p>
I noticed that if I define other regions than "default region" then they are displayed, but the text appears on the default region anyway. Some other functionalities described here are probably not supported in current release of SMF.