CAMERA_AUTO_SWITCH_ENABLED

Whether the source may automatically switch between the back and front cameras while scanning.

Intended for camera-faces-away carry modes (e.g. a phone on a neck lanyard that turns so either camera may face the scene): the initial camera is picked from the proximity sensor, and at runtime the source switches to the other camera when the active one keeps returning low-texture frames (blank views of the wearer/ground). When false (the default), only the back camera is ever used — the behavior most integrations want for normal handheld scanning.