Codec implementation is based on: https://github.com/gopro/cineform-sdk
To encode bayer you must select the correct mosaic pattern (e.g. RGGB), otherwise cineform decoder will display incorrect image.
Actual format is selectable in Video->Decode format, any conversion if needed is provided by cineform-sdk.
To activate bayer mode: select Video->Decode format->any grayscale format (Y8 / I8 / Y16)
When opening a rgb/rgba file that was produced from 8-bit source, the format in file properties is indicated as 8/12-bit