Merge "Camera: Add torch brightness control keys."

     */

    ACAMERA_FLASH_INFO_AVAILABLE =                              // byte (acamera_metadata_enum_android_flash_info_available_t)

            ACAMERA_FLASH_INFO_START,

    /**

     * <p>Maximum flashlight brightness level.</p>

     *

     * <p>Type: int32</p>

     *

     * <p>This tag may appear in:

     * <ul>

     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>

     * </ul></p>

     *

     * <p>If this value is greater than 1, then the device supports controlling the

     * flashlight brightness level via

     * {android.hardware.camera2.CameraManager#setTorchStrengthLevel}.

     * If this value is equal to 1, flashlight brightness control is not supported.

     * This value will be -1 if the flash unit is not available.</p>

     */

    ACAMERA_FLASH_INFO_STRENGTH_MAXIMUM_LEVEL =                 // int32

            ACAMERA_FLASH_INFO_START + 2,

    /**

     * <p>Default flashlight brightness level to be set via

     * {android.hardware.camera2.CameraManager#setTorchStrengthLevel}.</p>

     *

     * <p>Type: int32</p>

     *

     * <p>This tag may appear in:

     * <ul>

     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>

     * </ul></p>

     *

     * <p>If flash unit is available this will be greater than or equal to 1 and less

     * or equal to <code>ACAMERA_FLASH_INFO_STRENGTH_MAXIMUM_LEVEL</code>.

     * If flash unit is not available this will be set to -1.</p>

     * <p>Setting flashlight brightness above the default level

     * (i.e.<code>ACAMERA_FLASH_INFO_STRENGTH_DEFAULT_LEVEL</code>) may make the device more

     * likely to reach thermal throttling conditions and slow down, or drain the

     * battery quicker than normal. To minimize such issues, it is recommended to

     * start the flashlight at this default brightness until a user explicitly requests

     * a brighter level.</p>

     *

     * @see ACAMERA_FLASH_INFO_STRENGTH_DEFAULT_LEVEL

     * @see ACAMERA_FLASH_INFO_STRENGTH_MAXIMUM_LEVEL

     */

    ACAMERA_FLASH_INFO_STRENGTH_DEFAULT_LEVEL =                 // int32

            ACAMERA_FLASH_INFO_START + 3,

    ACAMERA_FLASH_INFO_END,

    /**