Android(安卓)camera摄像头对焦，zoom的通知事件回调，告诉java应用层已经对焦完成

在vendor/sec/sec_proprietary/smdkc110/libcamera/SecCameraHWInterface.cpp中，当对硬件设置完毕后，通知packages/apps/Camera/src/com/android/camera/Camera.java，zoom已经完成。

    status_t CameraHardwareSec::sendCommand(int32_t command, int32_t arg1,                                               int32_t arg2)      {          if( command == ZOOM_COMMAND_ID )          {              if( arg1  == mZoomLevel )              {                  return NO_ERROR;              }                                    LOGE("startZoom (%s),arg1:%ld,mZoomLevel:%ld", __FUNCTION__,arg1,mZoomLevel);              //mZoomLevel = arg1;              //mSecCamera->startZoom(mZoomLevel);              if( arg1>mZoomLevel )              {                   LOGE("zoomIn (%s)", __FUNCTION__);                  mZoomLevel = arg1;                  mSecCamera->zoomIn(mZoomLevel);              }              else if( arg1<mZoomLevel )              {                  LOGE("zoomOut (%s)", __FUNCTION__);                  mZoomLevel = arg1;                  mSecCamera->zoomOut(mZoomLevel);              }              //add by hui              if (mMsgEnabled & CAMERA_MSG_ZOOM)              mNotifyCb(CAMERA_MSG_ZOOM, true, 1, mCallbackCookie);          }          return NO_ERROR;      }

应用层或者硬件层设置成功，可以对应用程序进行成功后的相关设置。例如把zoomin按钮显示出来。

private final class ZoomCallback            implements android.hardware.Camera.ZoomCallback {        public void onZoomUpdate(int zoomValue, boolean stopped,                                 android.hardware.Camera camera) {            Log.v(TAG, "ZoomCallback: zoom value=" + zoomValue + ". stopped="                    + stopped);            mZoomValue = zoomValue;            // Keep mParameters up to date. We do not getParameter again in            // takePicture. If we do not do this, wrong zoom value will be set.            mParameters.setZoom(zoomValue);            // We only care if the zoom is stopped. mZooming is set to true when            // we start smooth zoom.            if (stopped) mZooming = false;            updateZoomButtonsEnabled();        }    }

更多相关文章

随机推荐