private void switchCameraOnCameraThread() {
checkIsOnCameraThread();
Logging.d(TAG, "switchCameraOnCameraThread");
stopCaptureOnCameraThread();
synchronized (cameraIdLock) {
id = (id + 1) % Camera.getNumberOfCameras();
}
dropNextFrame = true;
startCaptureOnCameraThread(
requestedWidth, requestedHeight, requestedFramerate, frameObserver, applicationContext);
Logging.d(TAG, "switchCameraOnCameraThread done");
}
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;
}