compared with replaykit2, which is faster?

[BigWavelet]

No description provided.

[nanoscopic]

With ReplayKit; you need an App on the phone to grab the frames and then do something with them. That thing needs to be maintained. There are examples of screen mirroring via FLV in this fashion; see HaishinKit screen mirror example. It is very unstable. I wouldn't recommend it at all.

The "quicktime mirroring" path is Apple maintained code that has existed for a long time and is quite stable. It is also connected through to AVFoundation, and that is what ios-minicap uses. It is much more reliable.

This isn't really an "issue" and should be closed...