881addb5b4
- IMediaFrameSource gains bool Looping. - MediaVideoSource ctor takes Func<IDecodeProcess> processFactory instead of a single IDecodeProcess: a System.Diagnostics.Process can't be re-Start()ed, so each loop pass creates a fresh decoder. Decode wrapped in do-while(Looping): restart on natural EOF instead of raising Completed. - Production wiring (MainViewModel media factory): passes the process factory AND FfmpegFrameRateProbe -- closes the slice-2b gap where production had no probe and therefore no pacing. - Tests: loop test (single frame re-emits across passes, Completed only when loop cleared); fakes updated for the new interface member. Media tests 12/12, build 0 warnings. Wiring Source.MediaIsLooping into the flag needs a manager-level per-path loop provider -> lands with the UI-picker (acquisition) slice. Derivative reference: looping media by restarting decode on EOF, standard in playback/overlay tooling (OBS media source repeat).