need for sensor_t config of camera parameter

[kitazaki]

@phoddie

As I mentioned below, I find another reason why it needs for sensor_t config of camera parameter.
#1447 (comment)
OV2640 image looks OK for me, but OV3660 image is inverted on horizontal. (Horizontal Mirrored)

• XIAO ESP32S3 Sense
  OV2640 camera device
  

• M5Atom S3R M12
  OV3660 camera device
  

If I added 3 lines code after esp_camera_init() in camera.c, horizontal mirror is fixed.

        camera->initErr = esp_camera_init(&camera_config);
        if (ESP_OK != camera->initErr) goto bail;

        // fix Horizontal Mirror for M5AtomS3R M12 OV3660 camera device
        sensor_t *sensor = NULL;
        sensor = esp_camera_sensor_get();
        sensor->set_hmirror(sensor, 1);

• M5Atom S3R M12
  OV3660 camera device
  

[phoddie]

Thanks for this example of the use of the feature. Implementing this in the general case is a little more complicated because the parameters are connected by I²C. On devices with other I²C devices on the same bus this can cause conflicts between the ESP-IDF's camera driver implementation and the Moddable SDK use of I²C. We have made some progress in resolving that.