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

}