The setup_camera() function removes found media devices
from the device list on run but somehow avoids this on
the pinephone due more bugs in the software. This makes
it run with a clean list for every camera to fix this.
The proper fix is dropping the whole setup_camera()
procedure in the future.
Current post processing scripts assume at least 2 frames are captured.
With the rear pinephone camera the automatic gain control will always
raise the gain high enough that the frame count will be 2 or higher. For
the front camera the gain might be zero causing the burst to be 1 frame
long.
If the flash was disabled and screne flash is used it will try to set
the screen brightness back to the original value. Because the check for
mp_flash_enable and mp_flash_disable is different there's cases where
enable wasn't run but disable is, causing it to use the initial zero
brightness as the restore value.
Rename MPCameraMode to a more generic MPMode and move it along
with related functions to a new object in preparation for using
it in the device object.
clang-format always manages to mix spaces into tab-based indentation.
Since we already require an exact tab-width of 8 it makes more sense to
use spaces.
makes trigger focus, continuous focus, autogain, gain ctrl, auto
exposure, exposure ctrl run in background to not block the UI thread.
The camera updates the image while this is in progress, so you can for
example see the camera live focus as on common other phones.
