android.hardware.camera2.CaptureResult#CONTROL_AE_STATE_INACTIVE源码实例Demo

private boolean isAEAcceptable(TotalCaptureResultProxy metadata)
{
    Integer aeState = metadata.get(CaptureResult.CONTROL_AE_STATE);
    if (aeState == null)
    {
        return true;
    } else
    {
        switch (aeState)
        {
            case CaptureResult.CONTROL_AE_STATE_INACTIVE:
            case CaptureResult.CONTROL_AE_STATE_LOCKED:
            case CaptureResult.CONTROL_AE_STATE_CONVERGED:
                return true;
            default:
                return false;
        }
    }
}
 

/**
 * Auto-Exposure の状態を文字列に変換します。
 *
 * @param asState Auto Exposure の状態
 * @return 文字列
 */
static String debugAEState(Integer asState) {
    if (asState == null) {
        return "NULL";
    }

    switch (asState) {
        default:
            return "UNKNOWN";
        case CaptureResult.CONTROL_AE_STATE_CONVERGED:
            return "CaptureResult.CONTROL_AE_STATE_CONVERGED";
        case CaptureResult.CONTROL_AE_STATE_FLASH_REQUIRED:
            return "CaptureResult.CONTROL_AE_STATE_FLASH_REQUIRED";
        case CaptureResult.CONTROL_AE_STATE_INACTIVE:
            return "CaptureResult.CONTROL_AE_STATE_INACTIVE";
        case CaptureResult.CONTROL_AE_STATE_LOCKED:
            return "CaptureResult.CONTROL_AE_STATE_LOCKED";
        case CaptureResult.CONTROL_AE_STATE_PRECAPTURE:
            return "CaptureResult.CONTROL_AE_STATE_PRECAPTURE";
        case CaptureResult.CONTROL_AE_STATE_SEARCHING:
            return "CaptureResult.CONTROL_AE_STATE_SEARCHING";
    }
}
 

private void changeState(int newState) {
    if (mCameraState.getState() != newState) {
        mCameraState.setState(newState);
        if (newState < AndroidCamera2StateHolder.CAMERA_PREVIEW_ACTIVE) {
            mCurrentAeState = CaptureResult.CONTROL_AE_STATE_INACTIVE;
            mCameraResultStateCallback.resetState();
        }
    }
}