In my workshops and for general casting analysis I use Motionview video analysis software from Allsports Systems. It has become an indispensable tool for me when analyzing students casts and defining cause and effect of casting faults. It allows me to mark the video which enables me to trace tip path, trace casting stroke, measure casting arc, measure the angle change of the rod butt through the casting stroke and more.
I highly recommend it for anyone serious about analyzing casting videos. If you purchase an AllSports product I will receive a percentage of the sale. That money will go toward maintaining this site and allow me to add content.