Camera API1，好多年前的一笔修改

private Camera mSreviceCamera = null;
mServiceCamera.setDisplayOrientation(0);

 status_t CameraClient::sendCommand(int32_t cmd, int32_t arg1, int32_t arg2) {
    LOG1("sendCommand (pid %d)", getCallingPid());
    int orientation;
    Mutex::Autolock lock(mLock);
    status_t result = checkPidAndHardware();
    if (result != NO_ERROR) return result;

    if (cmd == CAMERA_CMD_SET_DISPLAY_ORIENTATION) {
        // Mirror the preview if the camera is front-facing.
        orientation = getOrientation(arg1, mCameraFacing == CAMERA_FACING_FRONT);

            // 新添加
            if(mCameraFacing == CAMERA_FACING_FRONT)
                  orientation = 0;
           ...


    return mHardware->sendCommand(cmd, arg1, arg2);
}