Neither of the OSX GEM developers have Intel Macs but someone on the list was working on compiling it recently.
We don't have any code specific to rtsp in GEM. Quicktime
supposedly handles all of that internally, but there are probably
certain parts of the API to help streaming. One thing to make
sure you do in GEM is set the gemwin frame rate to at least 100 [gemwin
100]. At that point it is possible for Quicktime to deliver
frames to GEM that fast, but I have never tested anything like
that. Also, everything in GEM will run at that frame rate so the
load on the CPU and GPU will go up.
I just get a Mac Book Pro (today), I try to compile PD and GEM and make new test, I will make a short overview after on how it work.What is surprising, is that QT perform very poorly in reading the stream versus mencoder or mplayer : there is a lot of frame drop in QT when you exceed the 25fps, while in mencoder everything work fine (in 100 fps) (this where done on a PowerBook G4)And when just playing the stream in QTPlayer, it works, but if you try to use te stream in another app like QuartzComposer or PD, the stream break very often.What kind of detail do you need about the setup ?