using video as a source to animate a puppett
I would like to use a prerecorded video instead of a live web camera, so face tracking and audio (lipsync) comes from there.
Instead of applying some sort of filter to the video.
John Knowles commented
For now you need to use an app like ManyCam to load a virtual webcam into CA, and then you can add video to the many cam queue and play though into CA. But yes it would be nice to avoid this step if CA simply allowed QuickTime video input in the camera window.
David Simons (Adobe) commented
You can already do this in Ch for lip sync by importing the audio file, placing it on the timeline, and doing Timeline > Compute Lip Sync Take from Scene Audio.
For video, it requires more work, as you have to go through After Effects, track the video and then copy the keyframe data and paste into Ch. See https://helpx.adobe.com/in/after-effects/user-guide.html/in/after-effects/using/facetracking.ug.html