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 {
mCamera.setPreviewDisplay(mHolder);
// reference former
Camera.Parameters parameters = mCamera.getParameters();
int capWidth = parameters.getPreviewSize().width;
int capHeight = parameters.getPreviewSize().height;
// android.graphics.imageformat
int pixelformat = parameters.getPreviewFormat();
PixelFormat pixelinfo = new PixelFormat();
PixelFormat.getPixelFormatInfo(pixelformat, pixelinfo);
int cameraIndex = 0;
boolean frontFacing = false;
Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
Camera.getCameraInfo(cameraIndex, cameraInfo);
if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
frontFacing = true;
}
// For the default NV21 format, bitsPerPixel = 12.
int bufSize = capWidth * capHeight * pixelinfo.bitsPerPixel / 8;
for (int i = 0; i < 5; i++) {
mCamera.addCallbackBuffer(new byte[bufSize]);
}
mCamera.startPreview();
nftSimpleActivity.nativeVideoInit(capWidth, capHeight, cameraIndex, frontFacing);
} catch (Exception e) {
Log.d(TAG, "Error starting camera preview: " + e.getMessage());
}
}
private int tryStartCapture(int width, int height, int frameRate) {
if (camera == null) {
Log.e(TAG, "Camera not initialized %d" + id);
return -1;
}
Log.d(
TAG,
"tryStartCapture: "
+ width
+ "x"
+ height
+ ", frameRate: "
+ frameRate
+ ", isCaptureRunning: "
+ isCaptureRunning
+ ", isSurfaceReady: "
+ isSurfaceReady
+ ", isCaptureStarted: "
+ isCaptureStarted);
if (isCaptureRunning || !isCaptureStarted) {
return 0;
}
CaptureCapabilityAndroid currentCapability = new CaptureCapabilityAndroid();
currentCapability.width = width;
currentCapability.height = height;
currentCapability.maxFPS = frameRate;
PixelFormat.getPixelFormatInfo(PIXEL_FORMAT, pixelFormat);
Camera.Parameters parameters = camera.getParameters();
parameters.setPreviewSize(currentCapability.width, currentCapability.height);
parameters.setPreviewFormat(PIXEL_FORMAT);
parameters.setPreviewFrameRate(currentCapability.maxFPS);
try {
camera.setParameters(parameters);
} catch (RuntimeException e) {
Log.e(TAG, "setParameters failed", e);
return -1;
}
int bufSize = width * height * pixelFormat.bitsPerPixel / 8;
byte[] buffer = null;
for (int i = 0; i < numCaptureBuffers; i++) {
buffer = new byte[bufSize];
camera.addCallbackBuffer(buffer);
}
camera.setPreviewCallbackWithBuffer(this);
ownsBuffers = true;
camera.startPreview();
previewBufferLock.lock();
expectedFrameSize = bufSize;
isCaptureRunning = true;
previewBufferLock.unlock();
return 0;
}
@SuppressLint("NewApi") // CameraInfo
@SuppressWarnings("deprecation") // setPreviewFrameRate
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
if (camera != null) {
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();
int capWidth = parameters.getPreviewSize().width;
int capHeight = parameters.getPreviewSize().height;
int pixelformat = parameters.getPreviewFormat(); // android.graphics.imageformat
PixelFormat pixelinfo = new PixelFormat();
PixelFormat.getPixelFormatInfo(pixelformat, pixelinfo);
int cameraIndex = 0;
boolean frontFacing = 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) frontFacing = true;
}
int bufSize =
capWidth
* capHeight
* pixelinfo.bitsPerPixel
/ 8; // For the default NV21 format, bitsPerPixel = 12.
for (int i = 0; i < 5; i++) camera.addCallbackBuffer(new byte[bufSize]);
camera.startPreview();
nftBookActivity.nativeVideoInit(capWidth, capHeight, cameraIndex, frontFacing);
}
}
public void setCallback() {
int bufferSize = 0;
int pformat;
int bitsPerPixel;
pformat = mCamera.getParameters().getPreviewFormat();
PixelFormat info = new PixelFormat();
PixelFormat.getPixelFormatInfo(pformat, info);
bitsPerPixel = info.bitsPerPixel;
bufferSize = mPreviewWidth * mPreviewHeight * bitsPerPixel / 8;
mPreviewBuffer = null;
mPreviewBuffer = new byte[bufferSize + 4096];
mCamera.addCallbackBuffer(mPreviewBuffer);
mCamera.setPreviewCallbackWithBuffer(mCameraCallback);
}
public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
w = optimalSize.width;
h = optimalSize.height;
Camera.Parameters parameters = mCamera.getParameters();
parameters.setPreviewSize(w, h);
mCamera.setParameters(parameters);
PixelFormat p = new PixelFormat();
PixelFormat.getPixelFormatInfo(parameters.getPreviewFormat(), p);
// Must call this before calling addCallbackBuffer to get all the
// reflection variables setup
initAddCallbackBufferMethod();
int bufSize = ((h * w) * p.bitsPerPixel) / 8;
Log.d(
"AR",
"Camera parameters: Size: "
+ bufSize
+ ", Height: "
+ h
+ ", Width: "
+ w
+ ", pixelformat: "
+ p.toString());
if (first) {
myThread.setImageSizeAndRun(h, w);
first = false;
}
// Add a buffer for the detection. This will be added to the queue again once it is free to use
// otherwise the frames will be discarded.
byte[] buffer = new byte[bufSize];
addCallbackBuffer(buffer);
setPreviewCallbackWithBuffer();
// mCamera.setOneShotPreviewCallback(this);
mCamera.startPreview();
}
public static CapabilitiesImmutable fixCaps(
boolean matchFormatPrecise, int format, CapabilitiesImmutable rCaps) {
PixelFormat pf = new PixelFormat();
PixelFormat.getPixelFormatInfo(format, pf);
final CapabilitiesImmutable res;
int r, g, b, a;
switch (format) {
case PixelFormat.RGBA_8888:
r = 8;
g = 8;
b = 8;
a = 8;
break;
case PixelFormat.RGBX_8888:
r = 8;
g = 8;
b = 8;
a = 0;
break;
case PixelFormat.RGB_888:
r = 8;
g = 8;
b = 8;
a = 0;
break;
case PixelFormat.RGB_565:
r = 5;
g = 6;
b = 5;
a = 0;
break;
case PixelFormat.RGBA_5551:
r = 5;
g = 5;
b = 5;
a = 1;
break;
case PixelFormat.RGBA_4444:
r = 4;
g = 4;
b = 4;
a = 4;
break;
case PixelFormat.RGB_332:
r = 3;
g = 3;
b = 2;
a = 0;
break;
default:
throw new InternalError("Unhandled pixelformat: " + format);
}
final boolean change =
matchFormatPrecise
|| rCaps.getRedBits() > r
&& rCaps.getGreenBits() > g
&& rCaps.getBlueBits() > b
&& rCaps.getAlphaBits() > a;
if (change) {
Capabilities nCaps = (Capabilities) rCaps.cloneMutable();
nCaps.setRedBits(r);
nCaps.setGreenBits(g);
nCaps.setBlueBits(b);
nCaps.setAlphaBits(a);
res = nCaps;
} else {
res = rCaps;
}
Log.d(MD.TAG, "fixCaps: format: " + format);
Log.d(MD.TAG, "fixCaps: requested: " + rCaps);
Log.d(MD.TAG, "fixCaps: chosen: " + res);
return res;
}
@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);
}