If you wouldn't mind, even if in a direct message. Would you please be able to explain to me how to use rtmpdump with some good detailed steps on a Macintosh. I have rtmpdump, rtmpsrv, rtmpsuck installed on OS X El Capitan 10.11.2 machine. I have just never been able to figure out how to use it. I had found this posting months ago, and now with your new post I thought I would ask for help.
For Example, I would like to get things from Crackle.com
http://www.crackle.com/powers/2494883
Any and all help you may be able to provide would be great and much appreciated! Thank you!