如何修改mtk android 默认拍照size

[DESCRIPTION]
修改默认拍照size

[SOLUTION]

修改默认的capture size，改变camera feature table的FID_CAP_SIZE default值不起作用。 因为camera AP并没有从feature table读取FID_CAP_SIZE的default值。

下面介绍在AP端修改默认的capture size，分为在初始化时候和restore时候修改。以默认capture size 1600x1200为例。

修改文件：Camera.java (alps\packages\apps\camera\src\com\android\camera)。

1、在AP初始化设置参数的时候修改默认的capture size。

private void updateCameraParametersPreference()方法中，将

            if (pictureSize == null) {

                  CameraSettings.initialCameraPictureSize(this, mParameters, camOri);

            } else {

                  List<Size> supported = mParameters.getSupportedPictureSizes();

                  CameraSettings.setCameraPictureSize(pictureSize, supported,

                              mParameters, camOri);

            }

改为：

            if (pictureSize == null) {

                  List<Size> supported = mParameters.getSupportedPictureSizes();

                  if(!(CameraSettings.setCameraPictureSize("1600x1200", supported,

                              mParameters, camOri)))

                  {

                        CameraSettings.initialCameraPictureSize(this, mParameters, camOri);

                  }

                  else

                  {

                       SharedPreferences.Editor editor = ComboPreferences

                        .get(this).edit();

                       editor.putString(CameraSettings.KEY_PICTURE_SIZE, "1600x1200");

                       editor.apply();               

                  }

             } else {

                  List<Size> supported = mParameters.getSupportedPictureSizes();

                  CameraSettings.setCameraPictureSize(pictureSize, supported,

                              mParameters, camOri);

             }

2、恢复默认参数的时候，需要添加默认的capture size。

private void restorePreferences()方法中，

在CameraSettings.restorePreferences(Camera.this, mPreferences,mParameters);

之后添加：

List<Size> supported = mParameters.getSupportedPictureSizes();

int camOri = CameraHolder.instance().getCameraInfo()[mCameraId].orientation;

                 

if (LOGI) Log.i(TAG, "supported="+supported+",camOri="+camOri);

if(camOri!=-1&&supported!=null)

    {

        if (LOGI) Log.i(TAG, "setCameraPictureSize=");

        if(CameraSettings.setCameraPictureSize("1600x1200", supported,mParameters, camOri))

        {

                       SharedPreferences.Editor editor = ComboPreferences

                        .get(this).edit();

                        editor.putString(CameraSettings.KEY_PICTURE_SIZE, "1600x1200");

                        editor.apply();

         }                         

    }

另外，对于前后摄像头不同要求，根据需要进行判断。

CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId];

if(info.facing == CameraInfo.CAMERA_FACING_FRONT){

//sub sensor

}else{

//main sensor

}