CWAC-Cam2 v0.7.5 is now available, adding
VideoRecorderActivity.IntentBuilder. If you call this, a "rule of thirds" grid will overlay the preview, to help with framing shots.
If you have any questions, start a fresh topic in the CWAC category here, or ask on Stack Overflow in the commonsware-cwac tag. If you encounter a bug, read the contribution guidelines, then file an issue.