Update tmux and add local bins

local/bin/youtube-to-gif.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+# brew install x265
+# brew install ffmpeg
+# brew install youtube-dl
+# brew install imagemagick
+
+ID='https://www.youtube.com/watch?v=p0JspnMuyig' # YouTube video ID, i.e. https://www.youtube.com/watch?v={ID}
+
+# fetch the video file with youtube-dl
+# convert it to MP4 (not really needed, but keeps the filename predictable)
+if [ ! -f $ID.mp4 ]; then
+  youtube-dl --output '%(id)s.%(ext)s' --recode-video mp4 $ID
+fi
+
+# convert the video file to GIF with ffmpeg
+START='00:08:52.000' # start 4 seconds in
+LENGTH='00:00:25.000' # end after 5 seconds
+SIZE='400x300' # size of the output GIF
+ffmpeg -ss $START -i $ID.mp4 -pix_fmt rgb8 -r 10 -s $SIZE -t $LENGTH $ID-unoptimized.gif
+
+# optimize the GIF with imagemagick
+convert -layers Optimize $ID-unoptimized.gif $ID.gif
+
+# credits:
+# http://www.commandlinefu.com/commands/view/10002/create-an-animated-gif-from-a-youtube-video
+# http://superuser.com/a/436109/106809