Hi Dan,
I would like to offer a new filter for your consideration. It is called
"dynamictext". The change is here:
https://github.com/pez4brian/mlt/commit/beb7046cedc89efc3715878ba490832bbac5570c
My motivation for the new filter is that, ultimately, I want to fulfill the
same use case in Kdenlive that I currently fill in Kino using the Titler effect
with keywords. In Kino, I would use the Titler filter with the text #dv.date#
to burn the recording date as an overlay on my home movies. In Kdenlive, I have
to go through each clip and manually add a title to each clip and look up the
recording date.
Using the "dynamictext" filter, I use the #filedate# keyword to burn in the
"modified date" property of the file. This works with the files from my HD
camcorder because it doesn't put a date/timecode in the video but it does save
the file with a modified date of the day it was recorded. However, when the day
comes that libav supports frame-specific context with timecodes, then this
filter will work with embedded date/timecodes (like DV has) because it can
overlay any frame property.
Let me know your thoughts on the filter and its suitability to be included in
MLT. I would be glad to accommodate any changes you request.
Also, I have a patch the adds the necessary event stack widgets to Kdenlive to
make the filter work. And I have tested the filter with Kdenlive. But I figured
I would keep that patch to myself until things are finalized in MLT.
Thanks for your consideration,
~Brian
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