Split the SETUP request into a separate function, as a prelude into allowing multiple SETUPs to be send to cycle protocols rather than bailing if one fails.
Split the SETUP request into a separate function, as a prelude into allowing
multiple SETUPs to be send to cycle protocols rather than bailing if one
fails.

Discussed and approved in "[PATCH] RTSP alternate protocol 1/3".



git-svn-id: a4d7c1866f8397a4106e0b57fc4fbf792bbdaaaf@12476 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

prajnashi/ffmpeg,prajnashi/ffmpeg,prajnashi/ffmpeg,prajnashi/ffmpeg