@SuppressLint("NewApi")
public void changeCameraFacing() {
// 切换前后摄像头
int cameraCount = 0;
CameraInfo cameraInfo = new CameraInfo();
cameraCount = Camera.getNumberOfCameras(); // 得到摄像头的个数
for (int i = 0; i < cameraCount; i++) {
Camera.getCameraInfo(i, cameraInfo); // 得到每一个摄像头的信息
if (cameraPosition == 1) {
// 现在是后置，变更为前置
if (cameraInfo.facing
== Camera.CameraInfo
.CAMERA_FACING_FRONT) { // 代表摄像头的方位，CAMERA_FACING_FRONT前置 CAMERA_FACING_BACK后置
mCamera.setPreviewCallback(null);
mCamera.stopPreview(); // 停掉原来摄像头的预览
mCamera.release(); // 释放资源
mCamera = null; // 取消原来摄像头
mCamera = Camera.open(i); // 打开当前选中的摄像头
try {
mCamera.setPreviewDisplay(mHolder); // 通过surfaceview显示取景画面
initParameters();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
mCamera.startPreview(); // 开始预览
cameraPosition = 0;
break;
}
} else {
// 现在是前置， 变更为后置
if (cameraInfo.facing
== Camera.CameraInfo
.CAMERA_FACING_BACK) { // 代表摄像头的方位，CAMERA_FACING_FRONT前置 CAMERA_FACING_BACK后置
mCamera.setPreviewCallback(null);
mCamera.stopPreview(); // 停掉原来摄像头的预览
mCamera.release(); // 释放资源
mCamera = null; // 取消原来摄像头
mCamera = Camera.open(i); // 打开当前选中的摄像头
try {
mCamera.setPreviewDisplay(mHolder); // 通过surfaceview显示取景画面
initParameters();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
mCamera.startPreview(); // 开始预览
cameraPosition = 1;
break;
}
}
}
}
public void surfaceCreated(SurfaceHolder holder) {
// The Surface has been created, acquire the camera and tell it where
// to draw.
camera = Camera.open();
try {
camera.setPreviewDisplay(holder);
camera.setPreviewCallback(
new PreviewCallback() {
public void onPreviewFrame(byte[] data, Camera arg1) {
FileOutputStream outStream = null;
try {
outStream =
new FileOutputStream(
String.format("/sdcard/%d.jpg", System.currentTimeMillis()));
outStream.write(data);
outStream.close();
Log.d(TAG, "onPreviewFrame - wrote bytes: " + data.length);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
}
Preview.this.invalidate();
}
});
} catch (IOException e) {
e.printStackTrace();
}
}
public void surfaceChanged(SurfaceHolder mholder, int format, int w, int h) {
// If your preview can change or rotate, take care of those events here.
// Make sure to stop the preview before resizing or reformatting it.
if (mHolder.getSurface() == null) {
// preview surface does not exist
return;
}
// stop preview before making changes
try {
mCamera.stopPreview();
} catch (Exception e) {
Log.d(LOG_TAG, "Unable to stop preview");
}
Parameters p = mCamera.getParameters();
mCamera.setDisplayOrientation(90);
mCamera.setParameters(p);
Log.d(LOG_TAG, "Surface changed");
// set preview size and make any resize, rotate or
// reformatting changes here
// start preview with new settings
try {
mCamera.setPreviewDisplay(mholder);
mCamera.startPreview();
Log.d(LOG_TAG, "Starting camera preview ");
} catch (IOException e) {
Log.d(LOG_TAG, "Error starting camera preview " + e.getMessage());
} catch (Exception e) {
Log.d(LOG_TAG, "Error 2 starting camera preview " + e.getMessage());
}
}
@SuppressLint("NewApi")
@Override
public void surfaceCreated(SurfaceHolder holder) {
int cameraIndex =
Integer.parseInt(
PreferenceManager.getDefaultSharedPreferences(getContext())
.getString("pref_cameraIndex", "0"));
Log.i(TAG, "Opening camera " + (cameraIndex + 1));
try {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD)
camera = Camera.open(cameraIndex);
else camera = Camera.open();
} catch (RuntimeException exception) {
Log.e(TAG, "Cannot open camera. It may be in use by another process.");
return;
}
Log.i(TAG, "Camera open");
try {
camera.setPreviewDisplay(holder);
} catch (IOException exception) {
Log.e(TAG, "IOException setting display holder");
camera.release();
camera = null;
Log.i(TAG, "Released camera");
return;
}
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
if (mHolder.getSurface() == null) {
// preview surface does not exist
return;
}
// stop preview before making changes
try {
mCamera.stopPreview();
} catch (Exception e) {
// ignore: tried to stop a non-existent preview
}
// Sets preview size.
Camera.Parameters parameters = mCamera.getParameters();
List<Camera.Size> sizes = parameters.getSupportedPreviewSizes();
Camera.Size cs = sizes.get(0);
parameters.setPreviewSize(cs.width, cs.height);
mCamera.setParameters(parameters);
// start preview with new settings
try {
mCamera.setPreviewDisplay(mHolder);
mCamera.startPreview();
} catch (Exception e) {
Log.d(TAG, "Error starting camera preview: " + e.getMessage());
}
Log.e(TAG, "SurfaceChanged.");
}
// Called by native code. Returns true when camera is known to be stopped.
private synchronized boolean stopCapture() {
Log.d(TAG, "stopCapture");
if (camera == null) {
throw new RuntimeException("Camera is already stopped!");
}
Throwable error = null;
try {
camera.stopPreview();
camera.setPreviewCallbackWithBuffer(null);
if (localPreview != null) {
localPreview.removeCallback(this);
camera.setPreviewDisplay(null);
} else {
camera.setPreviewTexture(null);
}
camera.release();
camera = null;
return true;
} catch (IOException e) {
error = e;
} catch (RuntimeException e) {
error = e;
}
Log.e(TAG, "Failed to stop camera", error);
return false;
}
public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
// If your preview can change or rotate, take care of those events here.
// Make sure to stop the preview before resizing or reformatting it.
if (mHolder.getSurface() == null) {
// preview surface does not exist
return;
}
// stop preview before making changes
try {
mCamera.stopPreview();
} catch (Exception e) {
// ignore: tried to stop a non-existent preview
}
// set preview size and make any resize, rotate or
// reformatting changes here
// start preview with new settings
try {
Camera.Parameters parameters = mCamera.getParameters();
setCameraDisplayOrientation(
((Activity) this.getContext()), Camera.CameraInfo.CAMERA_FACING_FRONT, mCamera);
mCamera.setParameters(parameters);
mCamera.setPreviewCallback(previewCallback);
mCamera.setPreviewDisplay(mHolder);
mCamera.startPreview();
} catch (Exception e) {
Log.d(TAG, "Error starting camera preview: " + e.getMessage());
}
}
private void initPreview(int width, int height) {
if (camera != null && previewHolder.getSurface() != null) {
try {
camera.setPreviewDisplay(previewHolder);
} catch (Throwable t) {
}
if (!cameraConfigured) {
Camera.Parameters parameters = camera.getParameters();
Camera.Size size = getBestPreviewSize(width, height, parameters);
Camera.Size pictureSize = getLargestPictureSize(parameters);
if (size != null && pictureSize != null) {
if (parameters.getSupportedFocusModes().contains(Camera.Parameters.FOCUS_MODE_AUTO)) {
// set the focus mode
parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO);
}
parameters.setPreviewSize(size.width, size.height);
parameters.setPictureSize(pictureSize.width, pictureSize.height);
parameters.setPictureFormat(ImageFormat.JPEG);
camera.setParameters(parameters);
cameraConfigured = true;
}
}
}
}
@SuppressLint("NewApi")
@Override
public void surfaceCreated(SurfaceHolder holder) {
Log.i(TAG, "Opening camera.");
try {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
int cameraIndex =
Integer.parseInt(
PreferenceManager.getDefaultSharedPreferences(getContext())
.getString("pref_cameraIndex", "0"));
camera = Camera.open(cameraIndex);
} else {
camera = Camera.open();
}
} catch (RuntimeException exception) {
Log.e(TAG, "Cannot open camera. It may be in use by another process.");
}
if (camera != null) {
try {
camera.setPreviewDisplay(holder);
// camera.setPreviewCallback(this);
camera.setPreviewCallbackWithBuffer(this); // API level 8 (Android 2.2)
} catch (IOException exception) {
Log.e(TAG, "Cannot set camera preview display.");
camera.release();
camera = null;
}
}
}
/**
* Opens the camera driver and initializes the hardware parameters.
*
* @param holder The surface object which the camera will draw preview frames into.
* @throws IOException Indicates the camera driver failed to open.
*/
public void openDriver(SurfaceHolder holder) throws IOException {
if (camera == null) {
camera = Camera.open();
if (camera == null) {
throw new IOException();
}
camera.setPreviewDisplay(holder);
if (!initialized) {
initialized = true;
configManager.initFromCameraParameters(camera);
}
configManager.setDesiredCameraParameters(camera);
// FIXME
// SharedPreferences prefs =
// PreferenceManager.getDefaultSharedPreferences(context);
// 是否使用前灯
// if (prefs.getBoolean(PreferencesActivity.KEY_FRONT_LIGHT, false))
// {
// FlashlightManager.enableFlashlight();
// }
FlashlightManager.enableFlashlight();
}
}
/**
* Opens the camera driver and initializes the hardware parameters.
*
* @param holder The surface object which the camera will draw preview frames into.
* @throws IOException Indicates the camera driver failed to open.
*/
public void openDriver(SurfaceHolder holder) throws IOException {
Camera theCamera = camera;
if (theCamera == null) {
theCamera = Camera.open();
if (theCamera == null) {
throw new IOException();
}
camera = theCamera;
}
theCamera.setPreviewDisplay(holder);
if (!initialized) {
initialized = true;
configManager.initFromCameraParameters(theCamera);
if (requestedFramingRectWidth > 0 && requestedFramingRectHeight > 0) {
setManualFramingRect(requestedFramingRectWidth, requestedFramingRectHeight);
requestedFramingRectWidth = 0;
requestedFramingRectHeight = 0;
}
}
configManager.setDesiredCameraParameters(theCamera);
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
reverseImage = prefs.getBoolean(KEY_REVERSE_IMAGE, false);
}
public void startCamera() {
mCamera = Camera.open();
try {
Camera.Parameters parameters = mCamera.getParameters();
Display display =
((WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
if (display.getRotation() == Surface.ROTATION_0) {
// parameters.setPreviewSize(height, width);
mCamera.setDisplayOrientation(90);
}
if (display.getRotation() == Surface.ROTATION_90) {
// parameters.setPreviewSize(width, height);
}
if (display.getRotation() == Surface.ROTATION_180) {
// parameters.setPreviewSize(height, width);
}
if (display.getRotation() == Surface.ROTATION_270) {
// parameters.setPreviewSize(width, height);
mCamera.setDisplayOrientation(180);
}
mCamera.setParameters(parameters);
mCamera.setPreviewDisplay(surface_holder);
mCamera.startPreview();
cameraRunning = true;
} catch (IOException exception) {
mCamera.release();
mCamera = null;
}
}
/** 给摄像头设置好一系列相关参数，并开始预览 */
private void initCamera() {
azLog.log("isPreView", "" + isPreview);
if (mCamera != null && !isPreview) {
try {
Camera.Parameters parameters = mCamera.getParameters();
// 设置预览照片的大小
parameters.setPreviewSize(mPreviewWidth, mPreviewHeight);
// 设置预览照片时每秒显示多少帧的最小值和最大值
parameters.setPreviewFpsRange(mFrameMin, mFrameMax);
// 设置图片格式
parameters.setPictureFormat(mImageFormat);
// 设置JPG照片的质量
parameters.set("jpeg-quality", mImageQuality);
// 设置照片的大小
parameters.setPictureSize(mPictureWidth, mPictureHeight);
// 通过SurfaceView显示取景画面
mCamera.setPreviewDisplay(mSurfaceHolder);
// 开始预览
mCamera.startPreview();
azLog.log("AzCamera", "摄像头打开");
} catch (IOException e) {
e.printStackTrace();
}
isPreview = true;
}
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
try {
// open the camera
camera = Camera.open(1);
} catch (RuntimeException e) {
// check for exceptions
System.err.println(e);
return;
}
Camera.Parameters param;
param = camera.getParameters();
// modify parameter
param.setPreviewSize(352, 288);
camera.setParameters(param);
try {
// The Surface has been created, now tell the camera where to draw
// the preview.
camera.setPreviewDisplay(surfaceHolder);
camera.setDisplayOrientation(90);
camera.startPreview();
} catch (Exception e) {
// check for exceptions
System.err.println(e);
return;
}
}
/** **************************************************************** about Camera */
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
Log.d(TAG, "---->>>>>>>>>> surfaceChanged()");
if (holder.getSurface() == null) {
Log.d(TAG, "---- surfaceChanged(), holder.getSurface() == null");
return;
}
mSurfaceHolder = holder;
try {
hasCamera = true;
nocamera.setVisibility(View.GONE);
mCameraDevice = Camera.open(mCurrentCameraId);
} catch (Exception e) {
hasCamera = false;
nocamera.setVisibility(View.VISIBLE);
mSwitchBut.setVisibility(View.GONE);
Log.e(TAG, " ____________- camera error");
return;
}
if (mHardwareRotation == 0) // XXX
mCameraDevice.setDisplayOrientation(90);
if (mCurrentCameraId == 1) mCameraDevice.setDisplayOrientation(270); // XXX
try {
mCameraDevice.setPreviewDisplay(mSurfaceHolder);
} catch (IOException e) {
e.printStackTrace();
}
mCameraDevice.startPreview();
}
public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
Log.e(TAG, "surfaceChanged => w=" + w + ", h=" + h);
// If your preview can change or rotate, take care of those events here.
// Make sure to stop the preview before resizing or reformatting it.
if (mHolder.getSurface() == null) {
// preview surface does not exist
return;
}
// stop preview before making changes
try {
mCamera.stopPreview();
} catch (Exception e) {
// ignore: tried to stop a non-existent preview
}
// set preview size and make any resize, rotate or reformatting changes here
// start preview with new settings
try {
Camera.Parameters parameters = mCamera.getParameters();
/* INSERT ZOOM HERE */
parameters.setPreviewSize(mPreviewSize.width, mPreviewSize.height);
parameters.setRotation(90);
mCamera.setParameters(parameters);
mCamera.setDisplayOrientation(90);
mCamera.setPreviewDisplay(mHolder);
mCamera.startPreview();
} catch (Exception e) {
Log.d(TAG, "Error starting camera preview: " + e.getMessage());
}
}
public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
if (mHolder.getSurface() == null) {
return;
}
// stop preview before making changes
try {
mCamera.stopPreview();
} catch (Exception e) {
// ignore: tried to stop a non-existent preview
}
if (mSupportedPreviewSizes != null) {
mPreviewSize = getOptimalPreviewSize(mSupportedPreviewSizes, w, h);
}
// start preview with new settings
try {
mCamera.setPreviewDisplay(mHolder);
Parameters params = mCamera.getParameters();
// params.setPreviewSize(mPreviewSize.width, mPreviewSize.height);
params.setPreviewSize(
mSupportedPreviewSizes.get(0).width, mSupportedPreviewSizes.get(0).height);
mCamera.setParameters(params);
mCamera.startPreview();
Log.d(TAG, "Preview Size: " + mPreviewSize.width + "X" + mPreviewSize.height);
} catch (Exception e) {
Log.d(TAG, "Error starting camera preview: " + e.getMessage());
}
}
private void initCamera() {
if (!isPreview) {
camera = Camera.open();
}
if (camera != null && !isPreview) {
streamIt = new StreamIt();
try {
Camera.Parameters parameters = camera.getParameters();
parameters.setPreviewSize(screenWidth, screenHeight); // 设置预览照片的大小
parameters.setPreviewFpsRange(20, 30); // 每秒显示20~30帧
parameters.setPictureFormat(ImageFormat.NV21); // 设置图片格式
parameters.setPictureSize(screenWidth, screenHeight); // 设置照片的大小
camera.setPreviewDisplay(surfaceHolder); // 通过SurfaceView显示取景画面
camera.setPreviewCallback(streamIt); // 设置回调的类
camera.startPreview(); // 开始预览
camera.autoFocus(null); // 自动对焦
} catch (Exception e) {
e.printStackTrace();
}
isPreview = true;
Thread postThread2 = new Thread(new postThread());
postThread2.start();
System.out.println("线程启动了@@@@@@@@@@@@@@@@@@@@@@@@@@");
}
}
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
/*
* If your preview can change or rotate, take care of those events here.
* Make sure to stop the preview before resizing or reformatting it.
*/
if (mHolder.getSurface() == null) {
// preview surface does not exist
return;
}
// stop preview before making changes
try {
mCamera.stopPreview();
} catch (Exception e) {
// ignore: tried to stop a non-existent preview
}
try {
// Hard code camera surface rotation 90 degs to match Activity view in portrait
mCamera.setDisplayOrientation(90);
mCamera.setPreviewDisplay(mHolder);
mCamera.setPreviewCallback(previewCallback);
mCamera.startPreview();
mCamera.autoFocus(autoFocusCallback);
} catch (Exception e) {
Log.d("DBG", "Error starting camera preview: " + e.getMessage());
}
}
public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
// If your preview can change or rotate, take care of those events here.
// Make sure to stop the preview before resizing or reformatting it.
Log.i(TAG, "srface changed");
if (mHolder.getSurface() == null) {
// preview surface does not exist
return;
}
// stop preview before making changes
try {
mCamera.stopPreview();
} catch (Exception e) {
// ignore: tried to stop a non-existent preview
}
// set preview size and make any resize, rotate or
// reformatting changes here
// start preview with new settings
try {
mCamera.setPreviewDisplay(mHolder);
mCamera.startPreview();
} catch (Exception e) {
Log.d(TAG, "Error starting camera preview: " + e.getMessage());
}
}
/**
* Opens the camera and starts sending preview frames to the underlying detector. The preview
* frames are not displayed.
*
* @throws IOException if the camera's preview texture or display could not be initialized
*/
@RequiresPermission(Manifest.permission.CAMERA)
public CameraSource start() throws IOException {
synchronized (mCameraLock) {
if (mCamera != null) {
return this;
}
mCamera = createCamera();
// SurfaceTexture was introduced in Honeycomb (11), so if we are running and
// old version of Android. fall back to use SurfaceView.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
mDummySurfaceTexture = new SurfaceTexture(DUMMY_TEXTURE_NAME);
mCamera.setPreviewTexture(mDummySurfaceTexture);
} else {
mDummySurfaceView = new SurfaceView(mContext);
mCamera.setPreviewDisplay(mDummySurfaceView.getHolder());
}
mCamera.startPreview();
mProcessingThread = new Thread(mFrameProcessor);
mFrameProcessor.setActive(true);
mProcessingThread.start();
}
return this;
}
private boolean openCamera(int id) {
boolean result = false;
cameraId = id;
releaseCamera();
try {
camera = Camera.open(cameraId);
} catch (Exception e) {
e.printStackTrace();
}
if (camera != null) {
try {
setUpCamera(camera);
camera.setErrorCallback(
new ErrorCallback() {
@Override
public void onError(int error, Camera camera) {}
});
camera.setPreviewDisplay(surfaceHolder);
camera.startPreview();
result = true;
} catch (IOException e) {
e.printStackTrace();
result = false;
releaseCamera();
}
}
return result;
}
/** 开启相机拍摄 */
public void startCapture() {
try {
cameraInfo = new CameraInfo();
if (mCamera == null) {
// mCamera = Camera.open();
camera_count = Camera.getNumberOfCameras();
Log.e(TAG, "camera count:" + camera_count);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
for (int i = 0; i < camera_count; i++) {
CameraInfo info = new CameraInfo();
Camera.getCameraInfo(i, info);
// find front camera
if (info.facing == CameraInfo.CAMERA_FACING_FRONT) {
Log.e(TAG, "to open front camera");
mCamera = Camera.open(i);
Camera.getCameraInfo(i, cameraInfo);
}
}
}
if (mCamera == null) {
Log.e(TAG, "AAAAA OPEN camera");
mCamera = Camera.open();
Camera.getCameraInfo(0, cameraInfo);
}
}
mCamera.stopPreview();
mParameters = mCamera.getParameters();
if (isScreenOriatationPortrait()) {
if (cameraInfo.orientation == 270 || cameraInfo.orientation == 0)
mCamera.setDisplayOrientation(90);
if (cameraInfo.orientation == 90) mCamera.setDisplayOrientation(270);
} else {
if (cameraInfo.orientation == 90) mCamera.setDisplayOrientation(180);
}
mParameters.setPreviewSize(mwidth, mheight);
mParameters.setPreviewFrameRate(15);
mCamera.setParameters(mParameters);
int mformat = mParameters.getPreviewFormat();
int bitsperpixel = ImageFormat.getBitsPerPixel(mformat);
Log.e(TAG, "pzy bitsperpixel: " + bitsperpixel);
yuv_frame = new byte[mwidth * mheight * bitsperpixel / 8];
yuv_Rotate90 = new byte[mwidth * mheight * bitsperpixel / 8];
// yuv_Rotate90lr = new byte[mwidth * mheight * bitsperpixel / 8];
mCamera.addCallbackBuffer(yuv_frame);
// mCamera.setPreviewDisplay(holder);
mCamera.setPreviewDisplay(localSurfaceHolder);
mCamera.setPreviewCallbackWithBuffer(this);
EMVideoCallHelper.getInstance().setResolution(mwidth, mheight);
mCamera.startPreview();
Log.d(TAG, "camera start preview");
} catch (Exception e) {
e.printStackTrace();
if (mCamera != null) mCamera.release();
}
}
void initCameraPreview() {
try {
_camera.setPreviewDisplay(_holder);
_camera.startPreview();
} catch (IOException e) {
e.printStackTrace();
}
}
public void surfaceCreated(SurfaceHolder holder) {
// The Surface has been created, now tell the camera where to draw the preview.
try {
mCamera.setPreviewDisplay(holder);
} catch (IOException e) {
Log.d("DBG", "Error setting camera preview: " + e.getMessage());
}
}
public void surfaceCreated(SurfaceHolder holder) {
mCamera = Camera.open();
try {
mCamera.setPreviewDisplay(holder);
} catch (IOException e) {
e.printStackTrace();
}
}
private void setPreviewDisplay(SurfaceHolder holder) {
try {
mCameraDevice.setPreviewDisplay(holder);
} catch (Throwable ex) {
closeCamera();
throw new RuntimeException("setPreviewDisplay failed", ex);
}
}
public void surfaceCreated(SurfaceHolder holder) {
try {
camera.setPreviewDisplay(previewHolder);
} catch (Throwable t) {
Log.e("PreviewDemo-surfaceCallback", "Exception in setPreviewDisplay()", t);
Toast.makeText(CameraActivity.this, t.getMessage(), Toast.LENGTH_LONG).show();
}
}
protected synchronized void createCamera() throws RuntimeException {
if (mSurfaceView == null) throw new InvalidSurfaceException("Invalid surface !");
if (mSurfaceView.getHolder() == null || !mSurfaceReady)
throw new InvalidSurfaceException("Invalid surface !");
if (mCamera == null) {
openCamera();
mUpdated = false;
mUnlocked = false;
mCamera.setErrorCallback(
new Camera.ErrorCallback() {
@Override
public void onError(int error, Camera camera) {
// On some phones when trying to use the camera facing front the media server will die
// Whether or not this callback may be called really depends on the phone
if (error == Camera.CAMERA_ERROR_SERVER_DIED) {
// In this case the application must release the camera and instantiate a new one
Log.e(TAG, "Media server died !");
// We don't know in what thread we are so stop needs to be synchronized
mCameraOpenedManually = false;
stop();
} else {
Log.e(TAG, "Error unknown with the camera: " + error);
}
}
});
try {
// If the phone has a flash, we turn it on/off according to mFlashEnabled
// setRecordingHint(true) is a very nice optimization if you plane to only use the Camera
// for recording
Parameters parameters = mCamera.getParameters();
if (parameters.getFlashMode() != null) {
parameters.setFlashMode(
mFlashEnabled ? Parameters.FLASH_MODE_TORCH : Parameters.FLASH_MODE_OFF);
}
parameters.setRecordingHint(true);
mCamera.setParameters(parameters);
mCamera.setDisplayOrientation(mOrientation);
try {
if (mMode == MODE_MEDIACODEC_API_2) {
mSurfaceView.startGLThread();
mCamera.setPreviewTexture(mSurfaceView.getSurfaceTexture());
} else {
mCamera.setPreviewDisplay(mSurfaceView.getHolder());
}
} catch (IOException e) {
throw new InvalidSurfaceException("Invalid surface !");
}
} catch (RuntimeException e) {
destroyCamera();
throw e;
}
}
}
/** {@inheritDoc} */
@Override
public void surfaceCreated(SurfaceHolder holder) {
try {
camera.setPreviewDisplay(previewHolder);
camera.setPreviewCallback(previewCallback);
} catch (Throwable t) {
Log.e("PreviewDemo-surfaceCallback", "Exception in setPreviewDisplay()", t);
}
}
