@Override
public void onPreviewFrame(byte[] data, Camera camera) {
if (listener != null) listener.cameraPreviewFrame(data);
cameraWrapper.frameReceived(data);
if (fpsCounter.frame()) {
Log.i(TAG, "Camera capture FPS: " + fpsCounter.getFPS());
}
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
// Surface will be destroyed when we return, so stop the preview.
// Because the CameraDevice object is not a shared resource, it's very
// important to release it when the activity is paused.
if (camera != null) {
camera.setPreviewCallback(null);
camera.stopPreview();
camera.release();
camera = null;
}
if (listener != null) listener.cameraPreviewStopped();
}
@SuppressWarnings("deprecation") // setPreviewFrameRate, getPreviewFrameRate
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
if (camera == null) {
// Camera wasn't opened successfully?
Log.e(TAG, "No camera in surfaceChanged");
return;
}
Log.i(TAG, "Surfaced changed, setting up camera and starting preview");
String camResolution =
PreferenceManager.getDefaultSharedPreferences(getContext())
.getString(
"pref_cameraResolution",
getResources().getString(R.string.pref_defaultValue_cameraResolution));
String[] dims = camResolution.split("x", 2);
Camera.Parameters parameters = camera.getParameters();
parameters.setPreviewSize(Integer.parseInt(dims[0]), Integer.parseInt(dims[1]));
parameters.setPreviewFrameRate(30);
camera.setParameters(parameters);
parameters = camera.getParameters();
captureWidth = parameters.getPreviewSize().width;
captureHeight = parameters.getPreviewSize().height;
captureRate = parameters.getPreviewFrameRate();
int pixelformat = parameters.getPreviewFormat(); // android.graphics.imageformat
PixelFormat pixelinfo = new PixelFormat();
PixelFormat.getPixelFormatInfo(pixelformat, pixelinfo);
int cameraIndex = 0;
boolean cameraIsFrontFacing = false;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
cameraIndex =
Integer.parseInt(
PreferenceManager.getDefaultSharedPreferences(getContext())
.getString("pref_cameraIndex", "0"));
Camera.getCameraInfo(cameraIndex, cameraInfo);
if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) cameraIsFrontFacing = true;
}
mParent.onCameraConfigured(captureWidth, captureHeight, w, h);
int bufSize =
captureWidth
* captureHeight
* pixelinfo.bitsPerPixel
/ 8; // For the default NV21 format, bitsPerPixel = 12.
Log.i(
TAG,
"Camera buffers will be "
+ captureWidth
+ "x"
+ captureHeight
+ "@"
+ pixelinfo.bitsPerPixel
+ "bpp, "
+ bufSize
+ "bytes.");
cameraWrapper = new CameraWrapper(camera);
cameraWrapper.configureCallback(
this, true, 10, bufSize); // For the default NV21 format, bitsPerPixel = 12.
camera.startPreview();
if (listener != null)
listener.cameraPreviewStarted(
captureWidth, captureHeight, captureRate, cameraIndex, cameraIsFrontFacing);
}
