to round out here, I believe that video capture is not supported even with today's release of Emteria's Android 13. Multimedia is core to mobile, so I am unsure why there has been no HAL to utilize rpi's hardware encoded camera.
I found that camera preview and capture is different from video capture. While the former is supported, the latter requires work from Emteria's end, which hopefully they get to by the end of the decade?
