resources:
 http://otranscribe.com/

To grab a frame from the video:

dir=2016-06; time=95; ffmpeg -ss $time -i ~/Desktop/scienceknocks/episodes/$dir/$dir.mp4 -vframes 1 -f image2 ~/Desktop/scienceknocks/episodes/$dir/$dir.jpg


To get the time, in seconds, for a file

dir=2016-06; for media in mp3 mp4; do ffprobe -i ~/Desktop/scienceknocks/episodes/$dir/$dir.$media -show_entries format=duration -v quiet -of csv="p=0"; done;


gifs
http://superuser.com/questions/556029/how-do-i-convert-a-video-to-gif-using-ffmpeg-with-reasonable-quality

--
- During upload to s3, add x-amz-meta-duration on the mp4 to the duration of the video
-