Extract URLs from presentation slides and create YouTube annotations over top of them in the video output

[mithro]

From discussion on IRC...

https://logs.timvideos.us/%23timvideos/%23timvideos.2016-08-24.log.html#t2016-08-24T06:21:59

@mithro CarlFK: You should OCR the recorded video looking for things which look like URLs and then convert them to YouTube annotations so I can click on URLs in people's slides :P
4:18 PM N lol
4:19 PM C<+CarlFK> mithro: I have the OCR bit.. how about you give me some annotation code?
4:19 PM M@mithro CarlFK: If you can generate the time period and the x/y location I can give you the annotation creation code bit
4:20 PM C<+CarlFK> neat. oh wait.. x/y.. that's ... not something I currently do. but maybe I can...
4:20 PM M@mithro CarlFK: Oh and the URL value :P
4:22 PM C<+CarlFK> https://github.com/CarlFK/veyepar/blob/master/dj/scripts/ocrdv.py # ocrdv - reads frames from a .dv untill it finds a bunch of words
4:22 PM T Title: veyepar/ocrdv.py at master · CarlFK/veyepar · GitHub (at github.com)
4:22 PM X DV? who uses DV? :P
4:23 PM C<+CarlFK> https://github.com/CarlFK/veyepar/blob/master/dj/scripts/gsocr.py # uses gstreamer to send frames to gocr better? ;)
4:23 PM T Title: veyepar/gsocr.py at master · CarlFK/veyepar · GitHub (at github.com)
4:24 PM C<+CarlFK> mithro: can I get a job at youtube to do this?
4:24 PM C<+CarlFK> should only take me.. um.. 6 months sounds good.
4:24 PM M@mithro CarlFK: No :P
4:24 PM C<+CarlFK> boo.
4:25 PM M@mithro CarlFK: What is gocr and where does it come from?
4:26 PM C<+CarlFK> mithro: http://jocr.sourceforge.net/ I hear tesseract is better. I think I have code to use that too
4:26 PM T Title: GOCR (at jocr.sourceforge.net)

It appears there might not be a YouTube Annotation API? The only thing I could find is this Ruby thing?
http://fullscreen.github.io/yt/annotations.html

http://stackoverflow.com/questions/14463242/manage-youtube-annotations-through-youtube-api
https://code.google.com/p/gdata-issues/issues/detail?id=558

[mithro]

You'll probably want a regex for URLs;

• See http://stackoverflow.com/questions/3809401/what-is-a-good-regular-expression-to-match-a-url
• http://stackoverflow.com/questions/161738/what-is-the-best-regular-expression-to-check-if-a-string-is-a-valid-url
• https://mathiasbynens.be/demo/url-regex
• https://gist.github.com/gruber/8891611