@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.v("FlashlightService", "Starting Flash");
if (cam != null) return START_NOT_STICKY;
try {
cam = Camera.open();
Parameters p = cam.getParameters();
List<String> flashes = p.getSupportedFlashModes();
if (flashes == null) return error(this, R.string.err_available);
if (flashes.contains(Parameters.FLASH_MODE_TORCH))
p.setFlashMode(Parameters.FLASH_MODE_TORCH);
else if (flashes.contains(Parameters.FLASH_MODE_ON)) p.setFlashMode(Parameters.FLASH_MODE_ON);
else return error(this, R.string.err_available);
cam.setParameters(p);
// Needed for some devices.
cam.setPreviewTexture(new SurfaceTexture(0));
// Needed for some more devices.
cam.startPreview();
// Keep phone awake with screen off
wl =
((PowerManager) getSystemService(Context.POWER_SERVICE))
.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "FlashlightService");
if (wl != null && !wl.isHeld()) wl.acquire();
return START_NOT_STICKY;
} catch (Exception e) {
return error(this, R.string.err_access);
}
}
/**
* 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;
}
public int StartCapture(int width, int height, int frameRate) {
Log.d(TAG, "StartCapture width " + width + " height " + height + " frame rate " + frameRate);
// Get the local preview SurfaceHolder from the static render class
localPreview = ViERenderer.GetLocalRenderer();
if (localPreview != null) {
if (localPreview.getSurface() != null && localPreview.getSurface().isValid()) {
surfaceCreated(localPreview);
}
localPreview.addCallback(this);
} else {
// No local renderer. Camera won't capture without
// setPreview{Texture,Display}, so we create a dummy SurfaceTexture
// and hand it over to Camera, but never listen for frame-ready
// callbacks, and never call updateTexImage on it.
captureLock.lock();
try {
dummySurfaceTexture = new SurfaceTexture(42);
camera.setPreviewTexture(dummySurfaceTexture);
} catch (IOException e) {
throw new RuntimeException(e);
}
captureLock.unlock();
}
captureLock.lock();
isCaptureStarted = true;
mCaptureWidth = width;
mCaptureHeight = height;
mCaptureFPS = frameRate;
int res = tryStartCapture(mCaptureWidth, mCaptureHeight, mCaptureFPS);
captureLock.unlock();
return res;
}
// 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;
}
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;
}
}
}
/** Connects the SurfaceTexture to the Camera preview output, and starts the preview. */
private void handleSetSurfaceTexture(SurfaceTexture st) {
st.setOnFrameAvailableListener(this);
try {
mCamera.setPreviewTexture(st);
} catch (IOException ioe) {
throw new RuntimeException(ioe);
}
mCamera.startPreview();
}
public void startCamera(int texture) {
surface = new SurfaceTexture(texture);
surface.setOnFrameAvailableListener(this);
renderer.setSurface(surface);
mCamera = Camera.open();
mCamera.setPreviewTexture(surface);
mCamera.startPreview();
}
// Called by native code. Returns true if capturer is started.
//
// Note that this actually opens the camera, which can be a slow operation and
// thus might be done on a background thread, but ViE API needs a
// synchronous success return value so we can't do that.
private synchronized boolean startCapture(int width, int height, int min_mfps, int max_mfps) {
Log.d(TAG, "startCapture: " + width + "x" + height + "@" + min_mfps + ":" + max_mfps);
Throwable error = null;
try {
camera = Camera.open(id);
localPreview = ViERenderer.GetLocalRenderer();
if (localPreview != null) {
localPreview.addCallback(this);
if (localPreview.getSurface() != null && localPreview.getSurface().isValid()) {
camera.setPreviewDisplay(localPreview);
}
} else {
// No local renderer (we only care about onPreviewFrame() buffers, not a
// directly-displayed UI element). Camera won't capture without
// setPreview{Texture,Display}, so we create a dummy SurfaceTexture and
// hand it over to Camera, but never listen for frame-ready callbacks,
// and never call updateTexImage on it.
try {
// "42" because http://goo.gl/KaEn8
dummySurfaceTexture = new SurfaceTexture(42);
camera.setPreviewTexture(dummySurfaceTexture);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
Camera.Parameters parameters = camera.getParameters();
Log.d(TAG, "isVideoStabilizationSupported: " + parameters.isVideoStabilizationSupported());
if (parameters.isVideoStabilizationSupported()) {
parameters.setVideoStabilization(true);
}
parameters.setPreviewSize(width, height);
parameters.setPreviewFpsRange(min_mfps, max_mfps);
int format = ImageFormat.NV21;
parameters.setPreviewFormat(format);
camera.setParameters(parameters);
int bufSize = width * height * ImageFormat.getBitsPerPixel(format) / 8;
for (int i = 0; i < numCaptureBuffers; i++) {
camera.addCallbackBuffer(new byte[bufSize]);
}
camera.setPreviewCallbackWithBuffer(this);
camera.startPreview();
return true;
} catch (IOException e) {
error = e;
} catch (RuntimeException e) {
error = e;
}
Log.e(TAG, "startCapture failed", error);
if (camera != null) {
stopCapture();
}
return false;
}
@Override
public CameraActions startPreview(SurfaceTexture texture) throws IOException {
if (texture == null) {
throw new NullPointerException("You cannot start preview without a preview texture");
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
camera.setPreviewTexture(texture);
} else {
throw new IllegalStateException("Your Android version does not support this method.");
}
camera.startPreview();
return new DefaultCameraActions(this);
}
public void startCamera(int texture) {
surface = new SurfaceTexture(texture);
surface.setOnFrameAvailableListener(this);
camera = Camera.open();
try {
camera.setPreviewTexture(surface);
camera.startPreview();
} catch (IOException ioe) {
Log.w("MainActivity", "CAM LAUNCH FAILED");
}
}
/** The Surface is created/init() */
@Override
public void onSurfaceCreated(GL10 gl, EGLConfig config) {
Log.i("Almalence", "GLLayer.onSurfaceCreated()");
PluginManager.getInstance().onGLSurfaceCreated(gl, config);
if (PluginManager.getInstance().shouldPreviewToGPU()) {
final int[] tex = new int[1];
GLES20.glGenTextures(1, tex, 0);
this.texture_preview = tex[0];
GLES20.glBindTexture(GL_TEXTURE_EXTERNAL_OES, this.texture_preview);
GLES20.glTexParameteri(
GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE);
GLES20.glTexParameteri(
GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE);
GLES20.glTexParameteri(
GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);
GLES20.glTexParameteri(
GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);
GLES20.glBindTexture(GL_TEXTURE_EXTERNAL_OES, 0);
this.surfaceTexture = new SurfaceTexture(this.texture_preview);
this.surfaceTexture.setOnFrameAvailableListener(
new OnFrameAvailableListener() {
@Override
public void onFrameAvailable(final SurfaceTexture surfaceTexture) {
PluginManager.getInstance().onFrameAvailable();
}
});
final Camera camera = CameraController.getCamera();
if (camera == null) {
return;
}
try {
camera.setDisplayOrientation(90);
} catch (RuntimeException e) {
e.printStackTrace();
}
try {
camera.setPreviewTexture(this.surfaceTexture);
} catch (final IOException e) {
e.printStackTrace();
}
camera.startPreview();
}
}
private void initializeCamera() {
Camera.Parameters p = mCamera.getParameters();
// Hack for Samsung devices (e.g. Nexus 5) ; otherwise callback is never called
// See http://stackoverflow.com/questions/5788993/use-android-camera-without-surface-view
try {
mCameraTexture = new SurfaceTexture(10);
mCamera.setPreviewTexture(mCameraTexture);
} catch (Throwable ignored) {
}
// Choose smallest preview size available
List<Camera.Size> sizes = p.getSupportedPictureSizes();
int bestIndex = -1;
int pixelCount = Integer.MAX_VALUE;
for (int i = 0; i < sizes.size(); i++) {
int w = sizes.get(i).width, h = sizes.get(i).height;
int count = w * h;
if (count < pixelCount) {
bestIndex = i;
pixelCount = count; // Note pixelCount is reused below
}
}
Camera.Size size = sizes.get(bestIndex);
mCameraWidth = size.width;
mCameraHeight = size.height;
Log.d(TAG, "W:" + mCameraWidth + ",H:" + mCameraHeight + ", num pixels:" + pixelCount);
mCameraDecodedRGB = new int[pixelCount];
p.setPreviewSize(mCameraWidth, mCameraHeight);
p.setPreviewFormat(ImageFormat.NV21);
mCamera.setParameters(p);
int bitsPerPixel = ImageFormat.getBitsPerPixel(p.getPreviewFormat());
int bytes = (pixelCount * bitsPerPixel) / 8;
// Double Buffer - allow a buffer to be filled with new data while we are using the other one
mCamera.addCallbackBuffer(new byte[bytes]);
mCamera.addCallbackBuffer(new byte[bytes]);
mCamera.setPreviewCallbackWithBuffer(this);
mPreviewRunning = true;
mCamera.startPreview();
Log.d(TAG, "startPreview()");
}
/** Handles camera opening */
private void openCamera(int which) {
if (mCamera != null) {
mCamera.stopPreview();
mCamera.release();
mCamera = null;
}
if (mCameraId >= 0) {
Camera.getCameraInfo(mCameraId, mCameraInfo);
if (which == FRONT) mCamera = Camera.open(Camera.CameraInfo.CAMERA_FACING_FRONT);
else mCamera = Camera.open(Camera.CameraInfo.CAMERA_FACING_BACK);
params = mCamera.getParameters();
params.setRotation(0);
/** set focus mode */
List<String> FocusModes = params.getSupportedFocusModes();
if (FocusModes.contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE)) {
params.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);
}
mCamera.setParameters(params);
try {
if (mSurfaceTexture != null) {
mCamera.setPreviewTexture(mSurfaceTexture);
mCamera.startPreview();
}
} catch (Exception ex) {
}
}
if (mCamera == null || mSharedData == null) {
return;
}
int orientation = mCameraInfo.orientation + rot_angle;
Matrix.setRotateM(mSharedData.mOrientationM, 0, orientation, 0f, 0f, 1f);
Camera.Size size = mCamera.getParameters().getPreviewSize();
if (orientation % 90 == 0) {
int w = size.width;
size.width = size.height;
size.height = w;
}
mSharedData.mAspectRatioPreview[0] = (float) Math.min(size.width, size.height) / size.width;
mSharedData.mAspectRatioPreview[1] = (float) Math.min(size.width, size.height) / size.height;
}
/**
* Start the camera and set up its preview texture to the given texture (essentially copying
* camera into texture.
*
* @param texture
*/
public void startCamera(int texture) {
surface = new SurfaceTexture(texture);
surface.setOnFrameAvailableListener(this);
camera = Camera.open();
camera.setFaceDetectionListener(this);
try {
camera.setPreviewTexture(surface);
camera.startPreview();
} catch (IOException ioe) {
Log.w("MainActivity", "Failed to start camera preview on texture.");
}
camera.startFaceDetection();
}
@CalledByNative
public void deallocate() {
if (mCamera == null) return;
stopCapture();
try {
mCamera.setPreviewTexture(null);
if (mGlTextures != null) GLES20.glDeleteTextures(1, mGlTextures, 0);
mCaptureFormat = null;
mCamera.release();
mCamera = null;
} catch (IOException ex) {
Log.e(TAG, "deallocate: failed to deallocate camera, " + ex);
return;
}
}
@Override
public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {
mCamera = Camera.open();
mCamera.setDisplayOrientation(getCameraOrientation());
Camera.Size previewSize = mCamera.getParameters().getPreviewSize();
mTextureView.setLayoutParams(
new FrameLayout.LayoutParams(previewSize.width, previewSize.height, Gravity.CENTER));
try {
mCamera.setPreviewTexture(surface);
} catch (IOException t) {
android.util.Log.e("TextureView", "Cannot set preview texture target!", t);
}
mCamera.startPreview();
}
/**
* Closes the camera and stops sending frames to the underlying frame detector.
*
* <p>This camera source may be restarted again by calling {@link #start()} or {@link
* #start(SurfaceHolder)}.
*
* <p>Call {@link #release()} instead to completely shut down this camera source and release the
* resources of the underlying detector.
*/
public void stop() {
synchronized (mCameraLock) {
mFrameProcessor.setActive(false);
if (mProcessingThread != null) {
try {
// Wait for the thread to complete to ensure that we can't have multiple threads
// executing at the same time (i.e., which would happen if we called start too
// quickly after stop).
mProcessingThread.join();
} catch (InterruptedException e) {
Log.d(TAG, mContext.getString(R.string.processing_interrupted));
}
mProcessingThread = null;
}
// clear the buffer to prevent oom exceptions
mBytesToByteBuffer.clear();
if (mCamera != null) {
mCamera.stopPreview();
mCamera.setPreviewCallbackWithBuffer(null);
try {
// We want to be compatible back to Gingerbread, but SurfaceTexture
// wasn't introduced until Honeycomb. Since the interface cannot use a SurfaceTexture, if
// the
// developer wants to display a preview we must use a SurfaceHolder. If the developer
// doesn't
// want to display a preview we use a SurfaceTexture if we are running at least Honeycomb.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
mCamera.setPreviewTexture(null);
} else {
mCamera.setPreviewDisplay(null);
}
} catch (Exception e) {
Log.e(TAG, mContext.getString(R.string.failed_to_clear_preview) + e);
}
mCamera.release();
mCamera = null;
}
}
}
@SuppressLint("NewApi")
@Override
public void onSurfaceTextureAvailable(SurfaceTexture arg0, int arg1, int arg2) {
mCamera = Camera.open();
Camera.Size previewSize = mCamera.getParameters().getPreviewSize();
Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
int width = size.x;
int height = size.y;
myTexture.setLayoutParams(new FrameLayout.LayoutParams(width, height, Gravity.CENTER));
try {
mCamera.setPreviewTexture(arg0);
} catch (IOException t) {
}
mCamera.startPreview();
myTexture.setAlpha(1.0f);
// myTexture.setRotation(90.0f);
new GoGo().execute();
}
protected boolean initializeCamera(int width, int height) {
Log.d(TAG, "Initialize java camera");
boolean result = true;
synchronized (this) {
mCamera = null;
if (mCameraIndex == CAMERA_ID_ANY) {
Log.d(TAG, "Trying to open camera with old open()");
try {
mCamera = Camera.open();
} catch (Exception e) {
Log.e(
TAG,
"Camera is not available (in use or does not exist): " + e.getLocalizedMessage());
}
if (mCamera == null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
boolean connected = false;
for (int camIdx = 0; camIdx < Camera.getNumberOfCameras(); ++camIdx) {
Log.d(TAG, "Trying to open camera with new open(" + Integer.valueOf(camIdx) + ")");
try {
mCamera = Camera.open(camIdx);
connected = true;
} catch (RuntimeException e) {
Log.e(TAG, "Camera #" + camIdx + "failed to open: " + e.getLocalizedMessage());
}
if (connected) break;
}
}
} else {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
int localCameraIndex = mCameraIndex;
if (mCameraIndex == CAMERA_ID_BACK) {
Log.i(TAG, "Trying to open back camera");
Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
for (int camIdx = 0; camIdx < Camera.getNumberOfCameras(); ++camIdx) {
Camera.getCameraInfo(camIdx, cameraInfo);
if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_BACK) {
localCameraIndex = camIdx;
break;
}
}
} else if (mCameraIndex == CAMERA_ID_FRONT) {
Log.i(TAG, "Trying to open front camera");
Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
for (int camIdx = 0; camIdx < Camera.getNumberOfCameras(); ++camIdx) {
Camera.getCameraInfo(camIdx, cameraInfo);
if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
localCameraIndex = camIdx;
break;
}
}
}
if (localCameraIndex == CAMERA_ID_BACK) {
Log.e(TAG, "Back camera not found!");
} else if (localCameraIndex == CAMERA_ID_FRONT) {
Log.e(TAG, "Front camera not found!");
} else {
Log.d(
TAG,
"Trying to open camera with new open(" + Integer.valueOf(localCameraIndex) + ")");
try {
mCamera = Camera.open(localCameraIndex);
} catch (RuntimeException e) {
Log.e(
TAG,
"Camera #" + localCameraIndex + "failed to open: " + e.getLocalizedMessage());
}
}
}
}
if (mCamera == null) return false;
/* Now set camera parameters */
try {
Camera.Parameters params = mCamera.getParameters();
Log.d(TAG, "getSupportedPreviewSizes()");
List<android.hardware.Camera.Size> sizes = params.getSupportedPreviewSizes();
if (sizes != null) {
/* Select the size that fits surface considering maximum size allowed */
Size frameSize =
calculateCameraFrameSize(sizes, new JavaCameraSizeAccessor(), width, height);
params.setPreviewFormat(ImageFormat.NV21);
Log.d(
TAG,
"Set preview size to "
+ Integer.valueOf((int) frameSize.width)
+ "x"
+ Integer.valueOf((int) frameSize.height));
params.setPreviewSize((int) frameSize.width, (int) frameSize.height);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH
&& !android.os.Build.MODEL.equals("GT-I9100")) params.setRecordingHint(true);
List<String> FocusModes = params.getSupportedFocusModes();
if (FocusModes != null
&& FocusModes.contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO)) {
params.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO);
}
mCamera.setParameters(params);
params = mCamera.getParameters();
mFrameWidth = params.getPreviewSize().width;
mFrameHeight = params.getPreviewSize().height;
if ((getLayoutParams().width == LayoutParams.MATCH_PARENT)
&& (getLayoutParams().height == LayoutParams.MATCH_PARENT))
mScale = Math.min(((float) height) / mFrameHeight, ((float) width) / mFrameWidth);
else mScale = 0;
if (mFpsMeter != null) {
mFpsMeter.setResolution(mFrameWidth, mFrameHeight);
}
int size = mFrameWidth * mFrameHeight;
size = size * ImageFormat.getBitsPerPixel(params.getPreviewFormat()) / 8;
mBuffer = new byte[size];
mCamera.addCallbackBuffer(mBuffer);
mCamera.setPreviewCallbackWithBuffer(this);
mFrameChain = new Mat[2];
mFrameChain[0] = new Mat(mFrameHeight + (mFrameHeight / 2), mFrameWidth, CvType.CV_8UC1);
mFrameChain[1] = new Mat(mFrameHeight + (mFrameHeight / 2), mFrameWidth, CvType.CV_8UC1);
AllocateCache();
mCameraFrame = new JavaCameraFrame[2];
mCameraFrame[0] = new JavaCameraFrame(mFrameChain[0], mFrameWidth, mFrameHeight);
mCameraFrame[1] = new JavaCameraFrame(mFrameChain[1], mFrameWidth, mFrameHeight);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
mSurfaceTexture = new SurfaceTexture(MAGIC_TEXTURE_ID);
mCamera.setPreviewTexture(mSurfaceTexture);
} else mCamera.setPreviewDisplay(null);
/* Finally we are ready to start the preview */
Log.d(TAG, "startPreview");
mCamera.startPreview();
} else result = false;
} catch (Exception e) {
result = false;
e.printStackTrace();
}
}
return result;
}
@TargetApi(11)
protected boolean initializeCamera(int width, int height) {
Log.d(TAG, "Initialize java camera");
boolean result = true;
synchronized (this) {
mCamera = null;
if (mCameraIndex == -1) {
Log.d(TAG, "Trying to open camera with old open()");
try {
mCamera = Camera.open();
} catch (Exception e) {
Log.e(
TAG,
"Camera is not available (in use or does not exist): " + e.getLocalizedMessage());
}
if (mCamera == null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
boolean connected = false;
for (int camIdx = 0; camIdx < Camera.getNumberOfCameras(); ++camIdx) {
Log.d(TAG, "Trying to open camera with new open(" + Integer.valueOf(camIdx) + ")");
try {
mCamera = Camera.open(camIdx);
connected = true;
} catch (RuntimeException e) {
Log.e(TAG, "Camera #" + camIdx + "failed to open: " + e.getLocalizedMessage());
}
if (connected) break;
}
}
} else {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
Log.d(TAG, "Trying to open camera with new open(" + Integer.valueOf(mCameraIndex) + ")");
try {
mCamera = Camera.open(mCameraIndex);
} catch (RuntimeException e) {
Log.e(TAG, "Camera #" + mCameraIndex + "failed to open: " + e.getLocalizedMessage());
}
}
}
if (mCamera == null) return false;
/* Now set camera parameters */
try {
Camera.Parameters params = mCamera.getParameters();
Log.d(TAG, "getSupportedPreviewSizes()");
List<android.hardware.Camera.Size> sizes = params.getSupportedPreviewSizes();
if (sizes != null) {
/* Select the size that fits surface considering maximum size allowed */
Size frameSize =
calculateCameraFrameSize(sizes, new JavaCameraSizeAccessor(), width, height);
params.setPreviewFormat(ImageFormat.NV21);
Log.d(
TAG,
"Set preview size to "
+ Integer.valueOf((int) frameSize.width)
+ "x"
+ Integer.valueOf((int) frameSize.height));
params.setPreviewSize((int) frameSize.width, (int) frameSize.height);
List<String> FocusModes = params.getSupportedFocusModes();
if (FocusModes.contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO)) {
params.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO);
}
mCamera.setParameters(params);
params = mCamera.getParameters();
mFrameWidth = params.getPreviewSize().width;
mFrameHeight = params.getPreviewSize().height;
if (mFpsMeter != null) {
mFpsMeter.setResolution(mFrameWidth, mFrameHeight);
}
int size = mFrameWidth * mFrameHeight;
size = size * ImageFormat.getBitsPerPixel(params.getPreviewFormat()) / 8;
mBuffer = new byte[size];
mCamera.addCallbackBuffer(mBuffer);
mCamera.setPreviewCallbackWithBuffer(this);
mBaseMat = new Mat(mFrameHeight + (mFrameHeight / 2), mFrameWidth, CvType.CV_8UC1);
mFrameChain = new Mat[2];
mFrameChain[0] = new Mat();
mFrameChain[1] = new Mat();
AllocateCache();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
mSurfaceTexture = new SurfaceTexture(MAGIC_TEXTURE_ID);
getHolder().setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
mCamera.setPreviewTexture(mSurfaceTexture);
} else mCamera.setPreviewDisplay(null);
/* Finally we are ready to start the preview */
Log.d(TAG, "startPreview");
mCamera.startPreview();
} else result = false;
} catch (Exception e) {
result = false;
e.printStackTrace();
}
}
return result;
}
// Returns true on success, false otherwise.
@CalledByNative
public boolean allocate(int width, int height, int frameRate) {
Log.d(TAG, "allocate: requested (" + width + "x" + height + ")@" + frameRate + "fps");
try {
mCamera = Camera.open(mId);
} catch (RuntimeException ex) {
Log.e(TAG, "allocate: Camera.open: " + ex);
return false;
}
Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
Camera.getCameraInfo(mId, cameraInfo);
mCameraOrientation = cameraInfo.orientation;
mCameraFacing = cameraInfo.facing;
mDeviceOrientation = getDeviceOrientation();
Log.d(
TAG,
"allocate: orientation dev="
+ mDeviceOrientation
+ ", cam="
+ mCameraOrientation
+ ", facing="
+ mCameraFacing);
Camera.Parameters parameters = mCamera.getParameters();
// getSupportedPreviewFpsRange() returns a List with at least one
// element, but when camera is in bad state, it can return null pointer.
List<int[]> listFpsRange = parameters.getSupportedPreviewFpsRange();
if (listFpsRange == null || listFpsRange.size() == 0) {
Log.e(TAG, "allocate: no fps range found");
return false;
}
int frameRateInMs = frameRate * 1000;
// Use the first range as default.
int[] fpsMinMax = listFpsRange.get(0);
int newFrameRate = (fpsMinMax[0] + 999) / 1000;
for (int[] fpsRange : listFpsRange) {
if (fpsRange[0] <= frameRateInMs && frameRateInMs <= fpsRange[1]) {
fpsMinMax = fpsRange;
newFrameRate = frameRate;
break;
}
}
frameRate = newFrameRate;
Log.d(TAG, "allocate: fps set to " + frameRate);
// Calculate size.
List<Camera.Size> listCameraSize = parameters.getSupportedPreviewSizes();
int minDiff = Integer.MAX_VALUE;
int matchedWidth = width;
int matchedHeight = height;
for (Camera.Size size : listCameraSize) {
int diff = Math.abs(size.width - width) + Math.abs(size.height - height);
Log.d(TAG, "allocate: supported (" + size.width + ", " + size.height + "), diff=" + diff);
// TODO(wjia): Remove this hack (forcing width to be multiple
// of 32) by supporting stride in video frame buffer.
// Right now, VideoCaptureController requires compact YV12
// (i.e., with no padding).
if (diff < minDiff && (size.width % 32 == 0)) {
minDiff = diff;
matchedWidth = size.width;
matchedHeight = size.height;
}
}
if (minDiff == Integer.MAX_VALUE) {
Log.e(TAG, "allocate: can not find a multiple-of-32 resolution");
return false;
}
mCaptureFormat =
new CaptureFormat(matchedWidth, matchedHeight, frameRate, BuggyDeviceHack.getImageFormat());
// Hack to avoid certain capture resolutions under a minimum one,
// see http://crbug.com/305294
BuggyDeviceHack.applyMinDimensions(mCaptureFormat);
Log.d(TAG, "allocate: matched (" + mCaptureFormat.mWidth + "x" + mCaptureFormat.mHeight + ")");
if (parameters.isVideoStabilizationSupported()) {
Log.d(
TAG,
"Image stabilization supported, currently: "
+ parameters.getVideoStabilization()
+ ", setting it.");
parameters.setVideoStabilization(true);
} else {
Log.d(TAG, "Image stabilization not supported.");
}
parameters.setPreviewSize(mCaptureFormat.mWidth, mCaptureFormat.mHeight);
parameters.setPreviewFormat(mCaptureFormat.mPixelFormat);
parameters.setPreviewFpsRange(fpsMinMax[0], fpsMinMax[1]);
mCamera.setParameters(parameters);
// Set SurfaceTexture. Android Capture needs a SurfaceTexture even if
// it is not going to be used.
mGlTextures = new int[1];
// Generate one texture pointer and bind it as an external texture.
GLES20.glGenTextures(1, mGlTextures, 0);
GLES20.glBindTexture(GL_TEXTURE_EXTERNAL_OES, mGlTextures[0]);
// No mip-mapping with camera source.
GLES20.glTexParameterf(GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);
GLES20.glTexParameterf(GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);
// Clamp to edge is only option.
GLES20.glTexParameteri(
GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE);
GLES20.glTexParameteri(
GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE);
mSurfaceTexture = new SurfaceTexture(mGlTextures[0]);
mSurfaceTexture.setOnFrameAvailableListener(null);
try {
mCamera.setPreviewTexture(mSurfaceTexture);
} catch (IOException ex) {
Log.e(TAG, "allocate: " + ex);
return false;
}
int bufSize =
mCaptureFormat.mWidth
* mCaptureFormat.mHeight
* ImageFormat.getBitsPerPixel(mCaptureFormat.mPixelFormat)
/ 8;
for (int i = 0; i < NUM_CAPTURE_BUFFERS; i++) {
byte[] buffer = new byte[bufSize];
mCamera.addCallbackBuffer(buffer);
}
mExpectedFrameSize = bufSize;
return true;
}
/** Forwards call to Camera.setPreviewTexture */
public void setPreviewTexture(SurfaceTexture surfaceTexture) throws IOException {
mSurfaceTexture = surfaceTexture;
mCamera.setPreviewTexture(surfaceTexture);
}
private void startCaptureOnCameraThread(
final int width,
final int height,
final int framerate,
final CapturerObserver frameObserver,
final Context applicationContext) {
Throwable error = null;
checkIsOnCameraThread();
if (camera != null) {
throw new RuntimeException("Camera has already been started.");
}
this.applicationContext = applicationContext;
this.frameObserver = frameObserver;
this.firstFrameReported = false;
try {
try {
synchronized (cameraIdLock) {
Logging.d(TAG, "Opening camera " + id);
if (eventsHandler != null) {
eventsHandler.onCameraOpening(id);
}
camera = Camera.open(id);
info = new Camera.CameraInfo();
Camera.getCameraInfo(id, info);
}
} catch (RuntimeException e) {
openCameraAttempts++;
if (openCameraAttempts < MAX_OPEN_CAMERA_ATTEMPTS) {
Logging.e(TAG, "Camera.open failed, retrying", e);
openCameraOnCodecThreadRunner =
new Runnable() {
@Override
public void run() {
startCaptureOnCameraThread(
width, height, framerate, frameObserver, applicationContext);
}
};
cameraThreadHandler.postDelayed(openCameraOnCodecThreadRunner, OPEN_CAMERA_DELAY_MS);
return;
}
openCameraAttempts = 0;
throw e;
}
try {
camera.setPreviewTexture(surfaceHelper.getSurfaceTexture());
} catch (IOException e) {
Logging.e(TAG, "setPreviewTexture failed", error);
throw new RuntimeException(e);
}
Logging.d(
TAG,
"Camera orientation: "
+ info.orientation
+ " .Device orientation: "
+ getDeviceOrientation());
camera.setErrorCallback(cameraErrorCallback);
startPreviewOnCameraThread(width, height, framerate);
frameObserver.onCapturerStarted(true);
// Start camera observer.
cameraThreadHandler.postDelayed(cameraObserver, CAMERA_OBSERVER_PERIOD_MS);
return;
} catch (RuntimeException e) {
error = e;
}
Logging.e(TAG, "startCapture failed", error);
stopCaptureOnCameraThread();
frameObserver.onCapturerStarted(false);
if (eventsHandler != null) {
eventsHandler.onCameraError("Camera can not be started.");
}
return;
}
public void setPreview() throws IOException {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
mSf = new SurfaceTexture(10);
mCamera.setPreviewTexture(mSf);
} else mCamera.setPreviewDisplay(null);
}