MT6575 平臺(tái) android 4.0版本 改成1024x600的平板模式

進(jìn)camera預(yù)覽圖像橫向拉伸

解決方案：

1. 若 camera旋轉(zhuǎn)了90°，修改 mediatek/custom/xxxx/hal/camera/camera/Cfg_tuning_mt6575.h 文件里

???????? getSensorOrentation()

??????? {

?????????????? static SensorOrientation_T inst ={

??????????????? u4Degree_0 : 90,

??????????????? u4Degree_1: 0,

?????????? }

??????? }

????? .............

2.? packages/apps/Camera/src/com/android/camera/camera.java

????? 在方法private void updateCameraParametersPreference() 中

??if (mMeteringAreaSupported) {
???// Use the same area for focus and metering.
???mParameters.setMeteringAreas(mFocusManager.getMeteringAreas());
??}

??int camOri = CameraHolder.instance().getCameraInfo()[mCameraId].orientation;
// Vincent.Yu modify for p507 20121213

??if(camOri == 0 || camOri == 180)
???camOri = 90;
??else
???camOri = 0;

??Size prePictureSize = mParameters.getPictureSize();
??// Set picture size.
??String pictureSize = mPreferences.getString(
????CameraSettings.KEY_PICTURE_SIZE, null);
??if (pictureSize == null) {
???CameraSettings.initialCameraPictureSize(this, mParameters, camOri);
??} else {
???List<Size> supported = mParameters.getSupportedPictureSizes();
???CameraSettings.setCameraPictureSize(pictureSize, supported,
?????mParameters, camOri);
??}

?

添加紅色部分

??// Set a preview size that is closest to the viewfinder height and has
??// the right aspect ratio.
??List<Size> sizes = mParameters.getSupportedPreviewSizes();
??Size optimalSize = Util.getOptimalPreviewSize(this, sizes, aspectWtoH);
??Size original = mParameters.getPreviewSize();

??Log.i(TAG, " Sensor[" + mCameraId + "]'s orientation is " + camOri);
??if (!original.equals(optimalSize)) {

???/*
??? * Tricky code here, should really careful here. swap width and
??? * height when camera orientation = 0 or 180
??? */
?// Vincent.Yu modify for p507 20121213??
???/*if (camOri == 0 || camOri == 180) { //test zch
????mParameters.setPreviewSize(optimalSize.height,
??????optimalSize.width);
???} else */{
????mParameters.setPreviewSize(optimalSize.width,
??????optimalSize.height);
???}

???// Zoom related settings will be changed for different preview
???// sizes, so set and read the parameters to get lastest values
???mCameraDevice.setParameters(mParameters);
???mParameters = mCameraDevice.getParameters();
??}
??Log.v(TAG, "Preview size is " + optimalSize.width + "x"
????+ optimalSize.height);

屏蔽紅色部分

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