Dan, While working with the data_show filter, I found that it doesn't work 
properly in the latest git. I narrowed the problem down to commit 96d9:
http://mltframework.org/gitweb/mlt.git?p=mltframework.org/mlt.git;a=commitdiff;h=a0c82f0eb433e5b756e8239ebb684abc81b796d9

The commit immediately before 96d9 works properly.

The problem is that text is not displayed. To test the problem, run this 
command:
melt file.mp4 meta.attr.titles=1 meta.attr.titles.markup=#timecode# -attach 
data_show dynamic=1
It's the example for timecode overlay on the FAQ.

I looked at the diff for that commit, but the cause of the problem isn't 
obvious to me. If the solution isn't obvious to you, or you don't have time to 
chase it, let me know and I can dig deeper.

Let me know how I can help,

~Brian
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