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Fix Android samples for devices having front camera only (Nexus 7)

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This commit is contained in:
Andrey Kamaev 2012-08-31 14:26:22 +04:00
parent fc93518449
commit 067744d071
31 changed files with 771 additions and 708 deletions
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36
samples/android/15-puzzle/src/org/opencv/samples/puzzle15/SampleCvViewBase.java
View File

@ -14,7 +14,7 @@ import android.view.SurfaceHolder;
import android.view.SurfaceView;
public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHolder.Callback, Runnable {
private static final String TAG = "Sample-15puzzle::SurfaceView";
private static final String TAG = "OCVSample::BaseView";
private SurfaceHolder mHolder;
private VideoCapture mCamera;
@ -26,34 +26,28 @@ public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHol
Log.i(TAG, "Instantiated new " + this.getClass());
}
public boolean openCamera() {
Log.i(TAG, "openCamera");
synchronized (this) {
releaseCamera();
public synchronized boolean openCamera() {
Log.i(TAG, "Opening Camera");
mCamera = new VideoCapture(Highgui.CV_CAP_ANDROID);
if (!mCamera.isOpened()) {
releaseCamera();
Log.e(TAG, "Failed to open native camera");
Log.e(TAG, "Can't open native camera");
return false;
}
}
return true;
}
public void releaseCamera() {
Log.i(TAG, "releaseCamera");
synchronized (this) {
public synchronized void releaseCamera() {
Log.i(TAG, "Releasing Camera");
if (mCamera != null) {
mCamera.release();
mCamera = null;
}
}
}
public void setupCamera(int width, int height) {
Log.i(TAG, "setupCamera("+width+", "+height+")");
synchronized (this) {
public synchronized void setupCamera(int width, int height) {
if (mCamera != null && mCamera.isOpened()) {
Log.i(TAG, "Setup Camera - " + width + "x" + height);
List<Size> sizes = mCamera.getSupportedPreviewSizes();
int mFrameWidth = width;
int mFrameHeight = height;
@ -75,27 +69,24 @@ public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHol
}
}
}
public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) {
Log.i(TAG, "surfaceChanged");
Log.i(TAG, "called surfaceChanged");
setupCamera(width, height);
}
public void surfaceCreated(SurfaceHolder holder) {
Log.i(TAG, "surfaceCreated");
Log.i(TAG, "called surfaceCreated");
(new Thread(this)).start();
}
public void surfaceDestroyed(SurfaceHolder holder) {
Log.i(TAG, "surfaceDestroyed");
releaseCamera();
Log.i(TAG, "called surfaceDestroyed");
}
protected abstract Bitmap processFrame(VideoCapture capture);
public void run() {
Log.i(TAG, "Starting processing thread");
Log.i(TAG, "Started processing thread");
while (true) {
Bitmap bmp = null;
@ -120,7 +111,6 @@ public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHol
bmp.recycle();
}
}
Log.i(TAG, "Finishing processing thread");
Log.i(TAG, "Finished processing thread");
}
}

27
samples/android/15-puzzle/src/org/opencv/samples/puzzle15/puzzle15Activity.java
View File

@ -15,9 +15,8 @@ import android.view.Window;
import android.view.WindowManager;
/** Activity class implements LoaderCallbackInterface to handle OpenCV initialization status **/
public class puzzle15Activity extends Activity
{
private static final String TAG = "Sample::Activity";
public class puzzle15Activity extends Activity {
private static final String TAG = "OCVSample::Activity";
private MenuItem mItemNewGame;
private MenuItem mItemToggleNumbers;
@ -33,6 +32,7 @@ public class puzzle15Activity extends Activity
// Create and set View
mView = new puzzle15View(mAppContext);
setContentView(mView);
// Check native OpenCV camera
if( !mView.openCamera() ) {
AlertDialog ad = new AlertDialog.Builder(mAppContext).create();
@ -47,6 +47,7 @@ public class puzzle15Activity extends Activity
ad.show();
}
} break;
/** OpenCV loader cannot start Google Play **/
case LoaderCallbackInterface.MARKET_ERROR:
{
@ -76,7 +77,7 @@ public class puzzle15Activity extends Activity
@Override
protected void onPause() {
Log.i(TAG, "onPause");
Log.i(TAG, "called onPause");
if (null != mView)
mView.releaseCamera();
super.onPause();
@ -84,12 +85,11 @@ public class puzzle15Activity extends Activity
@Override
protected void onResume() {
Log.i(TAG, "onResume");
Log.i(TAG, "called onResume");
super.onResume();
Log.i(TAG, "Trying to load OpenCV library");
if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mOpenCVCallBack))
{
if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mOpenCVCallBack)) {
Log.e(TAG, "Cannot connect to OpenCV Manager");
}
}
@ -97,16 +97,15 @@ public class puzzle15Activity extends Activity
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
Log.i(TAG, "onCreate");
Log.i(TAG, "called onCreate");
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
Log.i(TAG, "onCreateOptionsMenu");
Log.i(TAG, "called onCreateOptionsMenu");
mItemNewGame = menu.add("Start new game");
mItemToggleNumbers = menu.add("Show/hide tile numbers");
return true;
@ -114,12 +113,10 @@ public class puzzle15Activity extends Activity
@Override
public boolean onOptionsItemSelected(MenuItem item) {
Log.i(TAG, "Menu Item selected " + item);
if (item == mItemNewGame) {
synchronized (mView) {
Log.i(TAG, "called onOptionsItemSelected; selected item: " + item);
if (item == mItemNewGame)
mView.startNewGame();
}
} else if (item == mItemToggleNumbers)
else if (item == mItemToggleNumbers)
mView.tolggleTileNumbers();
return true;
}

21
samples/android/15-puzzle/src/org/opencv/samples/puzzle15/puzzle15View.java
View File

@ -18,6 +18,8 @@ import android.view.View;
import android.view.View.OnTouchListener;
public class puzzle15View extends SampleCvViewBase implements OnTouchListener {
private static final String TAG = "OCVSample::View";
private Mat mRgba;
private Mat mRgba15;
private Mat[] mCells;
@ -42,14 +44,17 @@ public class puzzle15View extends SampleCvViewBase implements OnTouchListener {
mTextHeights[i] = (int) s.height;
mTextWidths[i] = (int) s.width;
}
Log.i(TAG, "Instantiated new " + this.getClass());
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
Log.i(TAG, "called surfaceCreated");
synchronized (this) {
// initialize Mat before usage
mRgba = new Mat();
}
super.surfaceCreated(holder);
}
@ -102,7 +107,14 @@ public class puzzle15View extends SampleCvViewBase implements OnTouchListener {
startNewGame();
}
public void startNewGame() {
private void drawGrid(int cols, int rows) {
for (int i = 1; i < gridSize; i++) {
Core.line(mRgba15, new Point(0, i * rows / gridSize), new Point(cols, i * rows / gridSize), new Scalar(0, 255, 0, 255), 3);
Core.line(mRgba15, new Point(i * cols / gridSize, 0), new Point(i * cols / gridSize, rows), new Scalar(0, 255, 0, 255), 3);
}
}
public synchronized void startNewGame() {
do {
shuffle(mIndexses);
} while (!isPuzzleSolvable());
@ -154,13 +166,6 @@ public class puzzle15View extends SampleCvViewBase implements OnTouchListener {
}
}
private void drawGrid(int cols, int rows) {
for (int i = 1; i < gridSize; i++) {
Core.line(mRgba15, new Point(0, i * rows / gridSize), new Point(cols, i * rows / gridSize), new Scalar(0, 255, 0, 255), 3);
Core.line(mRgba15, new Point(i * cols / gridSize, 0), new Point(i * cols / gridSize, rows), new Scalar(0, 255, 0, 255), 3);
}
}
@Override
public void run() {
super.run();

13
samples/android/color-blob-detection/src/org/opencv/samples/colorblobdetect/ColorBlobDetectionActivity.java
View File

@ -13,8 +13,8 @@ import android.view.Window;
import android.view.WindowManager;
public class ColorBlobDetectionActivity extends Activity {
private static final String TAG = "OCVSample::Activity";
private static final String TAG = "Sample-ColorBlobDetection::Activity";
private ColorBlobDetectionView mView;
private BaseLoaderCallback mOpenCVCallBack = new BaseLoaderCallback(this) {
@ -27,6 +27,7 @@ public class ColorBlobDetectionActivity extends Activity {
// Create and set View
mView = new ColorBlobDetectionView(mAppContext);
setContentView(mView);
// Check native OpenCV camera
if( !mView.openCamera() ) {
AlertDialog ad = new AlertDialog.Builder(mAppContext).create();
@ -41,6 +42,7 @@ public class ColorBlobDetectionActivity extends Activity {
ad.show();
}
} break;
/** OpenCV loader cannot start Google Play **/
case LoaderCallbackInterface.MARKET_ERROR:
{
@ -70,7 +72,7 @@ public class ColorBlobDetectionActivity extends Activity {
@Override
protected void onPause() {
Log.i(TAG, "onPause");
Log.i(TAG, "called onPause");
if (null != mView)
mView.releaseCamera();
super.onPause();
@ -78,12 +80,11 @@ public class ColorBlobDetectionActivity extends Activity {
@Override
protected void onResume() {
Log.i(TAG, "onResume");
Log.i(TAG, "called onResume");
super.onResume();
Log.i(TAG, "Trying to load OpenCV library");
if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mOpenCVCallBack))
{
if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mOpenCVCallBack)) {
Log.e(TAG, "Cannot connect to OpenCV Manager");
}
}
@ -91,7 +92,7 @@ public class ColorBlobDetectionActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
Log.i(TAG, "onCreate");
Log.i(TAG, "called onCreate");
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

24
samples/android/color-blob-detection/src/org/opencv/samples/colorblobdetect/ColorBlobDetectionView.java
View File

@ -22,29 +22,27 @@ import android.view.View;
import android.view.View.OnTouchListener;
public class ColorBlobDetectionView extends SampleCvViewBase implements OnTouchListener {
private static final String TAG = "OCVSample::View";
private Mat mRgba;
private boolean mIsColorSelected = false;
private Scalar mBlobColorRgba = new Scalar(255);
private Scalar mBlobColorHsv = new Scalar(255);
private ColorBlobDetector mDetector = new ColorBlobDetector();
private Mat mSpectrum = new Mat();
private static Size SPECTRUM_SIZE = new Size(200, 32);
// Logcat tag
private static final String TAG = "Sample-ColorBlobDetection::View";
private static final Scalar CONTOUR_COLOR = new Scalar(255,0,0,255);
public ColorBlobDetectionView(Context context) {
super(context);
setOnTouchListener(this);
Log.i(TAG, "Instantiated new " + this.getClass());
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
Log.i(TAG, "called surfaceCreated");
synchronized (this) {
// initialize Mat before usage
mRgba = new Mat();
@ -53,6 +51,14 @@ public class ColorBlobDetectionView extends SampleCvViewBase implements OnTouchL
super.surfaceCreated(holder);
}
private Scalar converScalarHsv2Rgba(Scalar hsvColor) {
Mat pointMatRgba = new Mat();
Mat pointMatHsv = new Mat(1, 1, CvType.CV_8UC3, hsvColor);
Imgproc.cvtColor(pointMatHsv, pointMatRgba, Imgproc.COLOR_HSV2RGB_FULL, 4);
return new Scalar(pointMatRgba.get(0, 0));
}
public boolean onTouch(View v, MotionEvent event) {
int cols = mRgba.cols();
int rows = mRgba.rows();
@ -130,14 +136,6 @@ public class ColorBlobDetectionView extends SampleCvViewBase implements OnTouchL
return bmp;
}
private Scalar converScalarHsv2Rgba(Scalar hsvColor) {
Mat pointMatRgba = new Mat();
Mat pointMatHsv = new Mat(1, 1, CvType.CV_8UC3, hsvColor);
Imgproc.cvtColor(pointMatHsv, pointMatRgba, Imgproc.COLOR_HSV2RGB_FULL, 4);
return new Scalar(pointMatRgba.get(0, 0));
}
@Override
public void run() {
super.run();

20
samples/android/color-blob-detection/src/org/opencv/samples/colorblobdetect/ColorBlobDetector.java
View File

@ -12,6 +12,16 @@ import org.opencv.core.Scalar;
import org.opencv.imgproc.Imgproc;
public class ColorBlobDetector {
// Lower and Upper bounds for range checking in HSV color space
private Scalar mLowerBound = new Scalar(0);
private Scalar mUpperBound = new Scalar(0);
// Minimum contour area in percent for contours filtering
private static double mMinContourArea = 0.1;
// Color radius for range checking in HSV color space
private Scalar mColorRadius = new Scalar(25,50,50,0);
private Mat mSpectrum = new Mat();
private List<MatOfPoint> mContours = new ArrayList<MatOfPoint>();
public void setColorRadius(Scalar radius) {
mColorRadius = radius;
}
@ -94,14 +104,4 @@ public class ColorBlobDetector {
public List<MatOfPoint> getContours() {
return mContours;
}
// Lower and Upper bounds for range checking in HSV color space
private Scalar mLowerBound = new Scalar(0);
private Scalar mUpperBound = new Scalar(0);
// Minimum contour area in percent for contours filtering
private static double mMinContourArea = 0.1;
// Color radius for range checking in HSV color space
private Scalar mColorRadius = new Scalar(25,50,50,0);
private Mat mSpectrum = new Mat();
private List<MatOfPoint> mContours = new ArrayList<MatOfPoint>();
}

36
samples/android/color-blob-detection/src/org/opencv/samples/colorblobdetect/SampleCvViewBase.java
View File

@ -14,7 +14,7 @@ import android.view.SurfaceHolder;
import android.view.SurfaceView;
public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHolder.Callback, Runnable {
private static final String TAG = "Sample::SurfaceView";
private static final String TAG = "OCVSample::BaseView";
private SurfaceHolder mHolder;
private VideoCapture mCamera;
@ -26,34 +26,28 @@ public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHol
Log.i(TAG, "Instantiated new " + this.getClass());
}
public boolean openCamera() {
Log.i(TAG, "openCamera");
synchronized (this) {
releaseCamera();
public synchronized boolean openCamera() {
Log.i(TAG, "Opening Camera");
mCamera = new VideoCapture(Highgui.CV_CAP_ANDROID);
if (!mCamera.isOpened()) {
releaseCamera();
Log.e(TAG, "Failed to open native camera");
Log.e(TAG, "Can't open native camera");
return false;
}
}
return true;
}
public void releaseCamera() {
Log.i(TAG, "releaseCamera");
synchronized (this) {
public synchronized void releaseCamera() {
Log.i(TAG, "Releasing Camera");
if (mCamera != null) {
mCamera.release();
mCamera = null;
}
}
}
public void setupCamera(int width, int height) {
Log.i(TAG, "setupCamera("+width+", "+height+")");
synchronized (this) {
public synchronized void setupCamera(int width, int height) {
if (mCamera != null && mCamera.isOpened()) {
Log.i(TAG, "Setup Camera - " + width + "x" + height);
List<Size> sizes = mCamera.getSupportedPreviewSizes();
int mFrameWidth = width;
int mFrameHeight = height;
@ -75,27 +69,24 @@ public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHol
}
}
}
public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) {
Log.i(TAG, "surfaceChanged");
Log.i(TAG, "called surfaceChanged");
setupCamera(width, height);
}
public void surfaceCreated(SurfaceHolder holder) {
Log.i(TAG, "surfaceCreated");
Log.i(TAG, "called surfaceCreated");
(new Thread(this)).start();
}
public void surfaceDestroyed(SurfaceHolder holder) {
Log.i(TAG, "surfaceDestroyed");
releaseCamera();
Log.i(TAG, "called surfaceDestroyed");
}
protected abstract Bitmap processFrame(VideoCapture capture);
public void run() {
Log.i(TAG, "Starting processing thread");
Log.i(TAG, "Started processing thread");
while (true) {
Bitmap bmp = null;
@ -121,7 +112,6 @@ public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHol
bmp.recycle();
}
}
Log.i(TAG, "Finishing processing thread");
Log.i(TAG, "Finished processing thread");
}
}

4
samples/android/face-detection/src/org/opencv/samples/fd/DetectionBasedTracker.java
View File

@ -38,8 +38,4 @@ public class DetectionBasedTracker
private static native void nativeStop(long thiz);
private static native void nativeSetFaceSize(long thiz, int size);
private static native void nativeDetect(long thiz, long inputImage, long faces);
static {
System.loadLibrary("detection_based_tracker");
}
}

24
samples/android/face-detection/src/org/opencv/samples/fd/FdActivity.java
View File

@ -15,7 +15,7 @@ import android.view.Window;
import android.view.WindowManager;
public class FdActivity extends Activity {
private static final String TAG = "Sample-FD::Activity";
private static final String TAG = "OCVSample::Activity";
private MenuItem mItemFace50;
private MenuItem mItemFace40;
@ -42,6 +42,7 @@ public class FdActivity extends Activity {
mView.setDetectorType(mDetectorType);
mView.setMinFaceSize(0.2f);
setContentView(mView);
// Check native OpenCV camera
if( !mView.openCamera() ) {
AlertDialog ad = new AlertDialog.Builder(mAppContext).create();
@ -56,6 +57,7 @@ public class FdActivity extends Activity {
ad.show();
}
} break;
/** OpenCV loader cannot start Google Play **/
case LoaderCallbackInterface.MARKET_ERROR:
{
@ -80,28 +82,27 @@ public class FdActivity extends Activity {
};
public FdActivity() {
Log.i(TAG, "Instantiated new " + this.getClass());
mDetectorName = new String[2];
mDetectorName[FdView.JAVA_DETECTOR] = "Java";
mDetectorName[FdView.NATIVE_DETECTOR] = "Native (tracking)";
Log.i(TAG, "Instantiated new " + this.getClass());
}
@Override
protected void onPause() {
Log.i(TAG, "onPause");
if (mView != null)
Log.i(TAG, "called onPause");
if (null != mView)
mView.releaseCamera();
super.onPause();
}
@Override
protected void onResume() {
Log.i(TAG, "onResume");
Log.i(TAG, "called onResume");
super.onResume();
Log.i(TAG, "Trying to load OpenCV library");
if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mOpenCVCallBack))
{
if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mOpenCVCallBack)) {
Log.e(TAG, "Cannot connect to OpenCV Manager");
}
}
@ -109,7 +110,7 @@ public class FdActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
Log.i(TAG, "onCreate");
Log.i(TAG, "called onCreate");
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
@ -117,7 +118,7 @@ public class FdActivity extends Activity {
@Override
public boolean onCreateOptionsMenu(Menu menu) {
Log.i(TAG, "onCreateOptionsMenu");
Log.i(TAG, "called onCreateOptionsMenu");
mItemFace50 = menu.add("Face size 50%");
mItemFace40 = menu.add("Face size 40%");
mItemFace30 = menu.add("Face size 30%");
@ -128,7 +129,7 @@ public class FdActivity extends Activity {
@Override
public boolean onOptionsItemSelected(MenuItem item) {
Log.i(TAG, "Menu Item selected " + item);
Log.i(TAG, "called onOptionsItemSelected; selected item: " + item);
if (item == mItemFace50)
mView.setMinFaceSize(0.5f);
else if (item == mItemFace40)
@ -137,8 +138,7 @@ public class FdActivity extends Activity {
mView.setMinFaceSize(0.3f);
else if (item == mItemFace20)
mView.setMinFaceSize(0.2f);
else if (item == mItemType)
{
else if (item == mItemType) {
mDetectorType = (mDetectorType + 1) % mDetectorName.length;
item.setTitle(mDetectorName[mDetectorType]);
mView.setDetectorType(mDetectorType);

6
samples/android/face-detection/src/org/opencv/samples/fd/FdView.java
View File

@ -22,7 +22,7 @@ import android.util.Log;
import android.view.SurfaceHolder;
class FdView extends SampleCvViewBase {
private static final String TAG = "Sample-FD::View";
private static final String TAG = "OCVSample::View";
private Mat mRgba;
private Mat mGray;
private File mCascadeFile;
@ -62,6 +62,7 @@ class FdView extends SampleCvViewBase {
super(context);
try {
// load cascade file from application resources
InputStream is = context.getResources().openRawResource(R.raw.lbpcascade_frontalface);
File cascadeDir = context.getDir("cascade", Context.MODE_PRIVATE);
mCascadeFile = new File(cascadeDir, "lbpcascade_frontalface.xml");
@ -90,10 +91,13 @@ class FdView extends SampleCvViewBase {
e.printStackTrace();
Log.e(TAG, "Failed to load cascade. Exception thrown: " + e);
}
Log.i(TAG, "Instantiated new " + this.getClass());
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
Log.i(TAG, "called surfaceCreated");
synchronized (this) {
// initialize Mats before usage
mGray = new Mat();

2
samples/android/face-detection/src/org/opencv/samples/fd/FpsMeter.java
View File

@ -10,7 +10,7 @@ import android.graphics.Paint;
import android.util.Log;
public class FpsMeter {
private static final String TAG = "Sample::FpsMeter";
private static final String TAG = "OCVSample::FpsMeter";
int step;
int framesCouner;
double freq;

38
samples/android/face-detection/src/org/opencv/samples/fd/SampleCvViewBase.java
View File

@ -14,7 +14,7 @@ import android.view.SurfaceHolder;
import android.view.SurfaceView;
public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHolder.Callback, Runnable {
private static final String TAG = "Sample::SurfaceView";
private static final String TAG = "OCVSample::BaseView";
private SurfaceHolder mHolder;
private VideoCapture mCamera;
@ -28,34 +28,28 @@ public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHol
Log.i(TAG, "Instantiated new " + this.getClass());
}
public boolean openCamera() {
Log.i(TAG, "openCamera");
synchronized (this) {
releaseCamera();
public synchronized boolean openCamera() {
Log.i(TAG, "Opening Camera");
mCamera = new VideoCapture(Highgui.CV_CAP_ANDROID);
if (!mCamera.isOpened()) {
Log.e(TAG, "Failed to open native camera");
releaseCamera();
Log.e(TAG, "Can't open native camera");
return false;
}
}
return true;
}
public void releaseCamera() {
Log.i(TAG, "releaseCamera");
synchronized (this) {
public synchronized void releaseCamera() {
Log.i(TAG, "Releasing Camera");
if (mCamera != null) {
mCamera.release();
mCamera = null;
}
}
}
public void setupCamera(int width, int height) {
Log.i(TAG, "setupCamera("+width+", "+height+")");
synchronized (this) {
public synchronized void setupCamera(int width, int height) {
if (mCamera != null && mCamera.isOpened()) {
Log.i(TAG, "Setup Camera - " + width + "x" + height);
List<Size> sizes = mCamera.getSupportedPreviewSizes();
int mFrameWidth = width;
int mFrameHeight = height;
@ -77,28 +71,23 @@ public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHol
}
}
}
public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) {
Log.i(TAG, "surfaceChanged");
Log.i(TAG, "called surfaceChanged");
setupCamera(width, height);
}
public void surfaceCreated(SurfaceHolder holder) {
Log.i(TAG, "surfaceCreated");
Log.i(TAG, "called surfaceCreated");
(new Thread(this)).start();
}
public void surfaceDestroyed(SurfaceHolder holder) {
Log.i(TAG, "surfaceDestroyed");
releaseCamera();
Log.i(TAG, "surfaceDestroyed2");
Log.i(TAG, "called surfaceDestroyed");
}
protected abstract Bitmap processFrame(VideoCapture capture);
public void run() {
Log.i(TAG, "Starting processing thread");
Log.i(TAG, "Started processing thread");
mFps.init();
while (true) {
@ -128,7 +117,6 @@ public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHol
bmp.recycle();
}
}
Log.i(TAG, "Finishing processing thread");
Log.i(TAG, "Finished processing thread");
}
}

2
samples/android/image-manipulations/src/org/opencv/samples/imagemanipulations/FpsMeter.java
View File

@ -10,7 +10,7 @@ import android.graphics.Paint;
import android.util.Log;
public class FpsMeter {
private static final String TAG = "Sample::FpsMeter";
private static final String TAG = "OCVSample::FpsMeter";
int step;
int framesCouner;
double freq;

21
samples/android/image-manipulations/src/org/opencv/samples/imagemanipulations/ImageManipulationsActivity.java
View File

@ -15,8 +15,7 @@ import android.view.Window;
import android.view.WindowManager;
public class ImageManipulationsActivity extends Activity {
private static final String TAG = "Sample-ImageManipulations::Activity";
private static final String TAG = "OCVSample::Activity";
public static final int VIEW_MODE_RGBA = 0;
public static final int VIEW_MODE_HIST = 1;
@ -35,11 +34,10 @@ public class ImageManipulationsActivity extends Activity {
private MenuItem mItemPreviewZoom;
private MenuItem mItemPreviewPixelize;
private MenuItem mItemPreviewPosterize;
private ImageManipulationsView mView;
public static int viewMode = VIEW_MODE_RGBA;
private ImageManipulationsView mView;
private BaseLoaderCallback mOpenCVCallBack = new BaseLoaderCallback(this) {
@Override
public void onManagerConnected(int status) {
@ -50,6 +48,7 @@ public class ImageManipulationsActivity extends Activity {
// Create and set View
mView = new ImageManipulationsView(mAppContext);
setContentView(mView);
// Check native OpenCV camera
if( !mView.openCamera() ) {
AlertDialog ad = new AlertDialog.Builder(mAppContext).create();
@ -64,6 +63,7 @@ public class ImageManipulationsActivity extends Activity {
ad.show();
}
} break;
/** OpenCV loader cannot start Google Play **/
case LoaderCallbackInterface.MARKET_ERROR:
{
@ -93,7 +93,7 @@ public class ImageManipulationsActivity extends Activity {
@Override
protected void onPause() {
Log.i(TAG, "onPause");
Log.i(TAG, "called onPause");
if (null != mView)
mView.releaseCamera();
super.onPause();
@ -101,12 +101,11 @@ public class ImageManipulationsActivity extends Activity {
@Override
protected void onResume() {
Log.i(TAG, "onResume");
Log.i(TAG, "called onResume");
super.onResume();
Log.i(TAG, "Trying to load OpenCV library");
if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mOpenCVCallBack))
{
if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mOpenCVCallBack)) {
Log.e(TAG, "Cannot connect to OpenCV Manager");
}
}
@ -114,7 +113,7 @@ public class ImageManipulationsActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
Log.i(TAG, "onCreate");
Log.i(TAG, "called onCreate");
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
@ -122,7 +121,7 @@ public class ImageManipulationsActivity extends Activity {
@Override
public boolean onCreateOptionsMenu(Menu menu) {
Log.i(TAG, "onCreateOptionsMenu");
Log.i(TAG, "called onCreateOptionsMenu");
mItemPreviewRGBA = menu.add("Preview RGBA");
mItemPreviewHist = menu.add("Histograms");
mItemPreviewCanny = menu.add("Canny");
@ -136,7 +135,7 @@ public class ImageManipulationsActivity extends Activity {
@Override
public boolean onOptionsItemSelected(MenuItem item) {
Log.i(TAG, "Menu Item selected " + item);
Log.i(TAG, "called onOptionsItemSelected; selected item: " + item);
if (item == mItemPreviewRGBA)
viewMode = VIEW_MODE_RGBA;
if (item == mItemPreviewHist)

23
samples/android/image-manipulations/src/org/opencv/samples/imagemanipulations/ImageManipulationsView.java
View File

@ -21,6 +21,7 @@ import android.util.Log;
import android.view.SurfaceHolder;
class ImageManipulationsView extends SampleCvViewBase {
private static final String TAG = "OCVSample::View";
private Size mSize0;
private Size mSizeRgba;
private Size mSizeRgbaInner;
@ -28,20 +29,23 @@ class ImageManipulationsView extends SampleCvViewBase {
private Mat mRgba;
private Mat mGray;
private Mat mIntermediateMat;
private Mat mHist, mMat0;
private MatOfInt mChannels[], mHistSize;
private Mat mHist;
private Mat mMat0;
private MatOfInt mChannels[];
private MatOfInt mHistSize;
private int mHistSizeNum;
private MatOfFloat mRanges;
private Scalar mColorsRGB[], mColorsHue[], mWhilte;
private Point mP1, mP2;
float mBuff[];
private Scalar mColorsRGB[];
private Scalar mColorsHue[];
private Scalar mWhilte;
private Point mP1;
private Point mP2;
private float mBuff[];
private Mat mRgbaInnerWindow;
private Mat mGrayInnerWindow;
private Mat mBlurWindow;
private Mat mZoomWindow;
private Mat mZoomCorner;
private Mat mSepiaKernel;
public ImageManipulationsView(Context context) {
@ -52,10 +56,13 @@ class ImageManipulationsView extends SampleCvViewBase {
mSepiaKernel.put(1, 0, /* G */0.168f, 0.686f, 0.349f, 0f);
mSepiaKernel.put(2, 0, /* B */0.131f, 0.534f, 0.272f, 0f);
mSepiaKernel.put(3, 0, /* A */0.000f, 0.000f, 0.000f, 1f);
Log.i(TAG, "Instantiated new " + this.getClass());
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
Log.i(TAG, "called surfaceCreated");
synchronized (this) {
// initialize Mats before usage
mGray = new Mat();
@ -234,7 +241,7 @@ class ImageManipulationsView extends SampleCvViewBase {
Utils.matToBitmap(mRgba, bmp);
return bmp;
} catch(Exception e) {
Log.e("org.opencv.samples.puzzle15", "Utils.matToBitmap() throws an exception: " + e.getMessage());
Log.e(TAG, "Utils.matToBitmap() throws an exception: " + e.getMessage());
bmp.recycle();
return null;
}

40
samples/android/image-manipulations/src/org/opencv/samples/imagemanipulations/SampleCvViewBase.java
View File

@ -14,7 +14,7 @@ import android.view.SurfaceHolder;
import android.view.SurfaceView;
public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHolder.Callback, Runnable {
private static final String TAG = "Sample-ImageManipulations::SurfaceView";
private static final String TAG = "OCVSample::BaseView";
private SurfaceHolder mHolder;
private VideoCapture mCamera;
@ -28,34 +28,28 @@ public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHol
Log.i(TAG, "Instantiated new " + this.getClass());
}
public boolean openCamera() {
Log.i(TAG, "openCamera");
synchronized (this) {
releaseCamera();
public synchronized boolean openCamera() {
Log.i(TAG, "Opening Camera");
mCamera = new VideoCapture(Highgui.CV_CAP_ANDROID);
if (!mCamera.isOpened()) {
releaseCamera();
Log.e(TAG, "Failed to open native camera");
Log.e(TAG, "Can't open native camera");
return false;
}
}
return true;
}
public void releaseCamera() {
Log.i(TAG, "releaseCamera");
synchronized (this) {
public synchronized void releaseCamera() {
Log.i(TAG, "Releasing Camera");
if (mCamera != null) {
mCamera.release();
mCamera = null;
}
}
}
public void setupCamera(int width, int height) {
Log.i(TAG, "setupCamera("+width+", "+height+")");
synchronized (this) {
public synchronized void setupCamera(int width, int height) {
if (mCamera != null && mCamera.isOpened()) {
Log.i(TAG, "Setup Camera - " + width + "x" + height);
List<Size> sizes = mCamera.getSupportedPreviewSizes();
int mFrameWidth = width;
int mFrameHeight = height;
@ -77,37 +71,32 @@ public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHol
}
}
}
public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) {
Log.i(TAG, "surfaceChanged");
Log.i(TAG, "called surfaceChanged");
setupCamera(width, height);
}
public void surfaceCreated(SurfaceHolder holder) {
Log.i(TAG, "surfaceCreated");
Log.i(TAG, "called surfaceCreated");
(new Thread(this)).start();
}
public void surfaceDestroyed(SurfaceHolder holder) {
Log.i(TAG, "surfaceDestroyed");
releaseCamera();
Log.i(TAG, "called surfaceDestroyed");
}
protected abstract Bitmap processFrame(VideoCapture capture);
public void run() {
Log.i(TAG, "Starting processing thread");
Log.i(TAG, "Started processing thread");
mFps.init();
while (true) {
Bitmap bmp = null;
synchronized (this) {
if (mCamera == null) {
Log.i(TAG, "mCamera == null");
if (mCamera == null)
break;
}
if (!mCamera.grab()) {
Log.e(TAG, "mCamera.grab() failed");
@ -129,7 +118,6 @@ public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHol
bmp.recycle();
}
}
Log.i(TAG, "Finishing processing thread");
Log.i(TAG, "Finished processing thread");
}
}

12
samples/android/tutorial-0-androidcamera/src/org/opencv/samples/tutorial0/Sample0Base.java
View File

@ -11,7 +11,7 @@ import android.view.Window;
public class Sample0Base extends Activity {
private static final String TAG = "Sample::Activity";
private static final String TAG = "OCVSample::Activity";
private MenuItem mItemPreviewRGBA;
private MenuItem mItemPreviewGray;
@ -23,14 +23,14 @@ public class Sample0Base extends Activity {
@Override
protected void onPause() {
Log.i(TAG, "onPause");
Log.i(TAG, "called onPause");
super.onPause();
mView.releaseCamera();
}
@Override
protected void onResume() {
Log.i(TAG, "onResume");
Log.i(TAG, "called onResume");
super.onResume();
if( !mView.openCamera() ) {
AlertDialog ad = new AlertDialog.Builder(this).create();
@ -49,7 +49,7 @@ public class Sample0Base extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
Log.i(TAG, "onCreate");
Log.i(TAG, "called onCreate");
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
mView = new Sample0View(this);
@ -58,7 +58,7 @@ public class Sample0Base extends Activity {
@Override
public boolean onCreateOptionsMenu(Menu menu) {
Log.i(TAG, "onCreateOptionsMenu");
Log.i(TAG, "called onCreateOptionsMenu");
mItemPreviewRGBA = menu.add("Preview RGBA");
mItemPreviewGray = menu.add("Preview GRAY");
return true;
@ -66,7 +66,7 @@ public class Sample0Base extends Activity {
@Override
public boolean onOptionsItemSelected(MenuItem item) {
Log.i(TAG, "Menu Item selected " + item);
Log.i(TAG, "called onOptionsItemSelected; selected item: " + item);
if (item == mItemPreviewRGBA)
mView.setViewMode(Sample0View.VIEW_MODE_RGBA);
else if (item == mItemPreviewGray)

17
samples/android/tutorial-0-androidcamera/src/org/opencv/samples/tutorial0/Sample0View.java
View File

@ -6,20 +6,21 @@ import android.util.Log;
class Sample0View extends SampleViewBase {
private static final String TAG = "Sample::View";
private static final String TAG = "OCVSample::View";
public static final int VIEW_MODE_RGBA = 0;
public static final int VIEW_MODE_GRAY = 1;
int mSize;
int[] mRGBA;
private Bitmap mBitmap;
private int mViewMode;
public static final int VIEW_MODE_RGBA = 0;
public static final int VIEW_MODE_GRAY = 1;
public Sample0View(Context context) {
super(context);
mSize = 0;
mViewMode = VIEW_MODE_RGBA;
Log.i(TAG, "Instantiated new " + this.getClass());
}
@Override
@ -64,7 +65,7 @@ class Sample0View extends SampleViewBase {
@Override
protected void onPreviewStarted(int previewWidth, int previewHeight) {
Log.i(TAG, "onPreviewStarted("+previewWidth+", "+previewHeight+")");
Log.i(TAG, "called onPreviewStarted("+previewWidth+", "+previewHeight+")");
/* Create a bitmap that will be used through to calculate the image to */
mBitmap = Bitmap.createBitmap(previewWidth, previewHeight, Bitmap.Config.ARGB_8888);
mRGBA = new int[previewWidth * previewHeight];
@ -72,7 +73,7 @@ class Sample0View extends SampleViewBase {
@Override
protected void onPreviewStopped() {
Log.i(TAG, "onPreviewStopped");
Log.i(TAG, "called onPreviewStopped");
if(mBitmap != null) {
mBitmap.recycle();
mBitmap = null;
@ -84,7 +85,7 @@ class Sample0View extends SampleViewBase {
}
public void setViewMode(int viewMode) {
Log.i(TAG, "setViewMode("+viewMode+")");
Log.i(TAG, "called setViewMode("+viewMode+")");
mViewMode = viewMode;
}
}

43
samples/android/tutorial-0-androidcamera/src/org/opencv/samples/tutorial0/SampleViewBase.java
View File

@ -16,7 +16,7 @@ import android.view.SurfaceHolder;
import android.view.SurfaceView;
public abstract class SampleViewBase extends SurfaceView implements SurfaceHolder.Callback, Runnable {
private static final String TAG = "Sample::SurfaceView";
private static final String TAG = "OCVSample::BaseView";
private Camera mCamera;
private SurfaceHolder mHolder;
@ -52,19 +52,30 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
mCamera.setPreviewDisplay(null);
}
public boolean openCamera() {
Log.i(TAG, "openCamera");
Log.i(TAG, "Opening Camera");
mCamera = null;
try {
mCamera = Camera.open();
}
catch (Exception e){
Log.e(TAG, "Camera is not available (in use or does not exist)");
e.printStackTrace();
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) {
for (int camIdx = 0; camIdx < Camera.getNumberOfCameras(); ++camIdx) {
try {
mCamera = Camera.open(camIdx);
}
catch (RuntimeException e) {
Log.e(TAG, "Camera #" + camIdx + "failed to open: " + e.getLocalizedMessage());
}
}
}
if(mCamera == null) {
Log.e(TAG, "Failed to open camera");
Log.e(TAG, "Can't open any camera");
return false;
}
@ -77,11 +88,12 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
camera.addCallbackBuffer(mBuffer);
}
});
return true;
}
public void releaseCamera() {
Log.i(TAG, "releaseCamera");
Log.i(TAG, "Releasing Camera");
mThreadRun = false;
synchronized (this) {
if (mCamera != null) {
@ -93,11 +105,9 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
onPreviewStopped();
}
public void setupCamera(int width, int height) {
Log.i(TAG, "setupCamera");
synchronized (this) {
public synchronized void setupCamera(int width, int height) {
if (mCamera != null) {
Log.i(TAG, "setupCamera - " + width + "x" + height);
Log.i(TAG, "Setup Camera - " + width + "x" + height);
Camera.Parameters params = mCamera.getParameters();
List<Camera.Size> sizes = params.getSupportedPreviewSizes();
mFrameWidth = width;
@ -147,10 +157,9 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
mCamera.startPreview();
}
}
}
public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) {
Log.i(TAG, "surfaceChanged");
Log.i(TAG, "called surfaceChanged");
// stop preview before making changes
try {
mCamera.stopPreview();
@ -163,12 +172,12 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
}
public void surfaceCreated(SurfaceHolder holder) {
Log.i(TAG, "surfaceCreated");
Log.i(TAG, "called surfaceCreated");
(new Thread(this)).start();
}
public void surfaceDestroyed(SurfaceHolder holder) {
Log.i(TAG, "surfaceDestroyed");
Log.i(TAG, "called surfaceDestroyed");
}
/* The bitmap returned by this method shall be owned by the child and released in onPreviewStopped() */
@ -191,7 +200,7 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
public void run() {
mThreadRun = true;
Log.i(TAG, "Starting processing thread");
Log.i(TAG, "Started processing thread");
while (mThreadRun) {
Bitmap bmp = null;
@ -214,6 +223,6 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
}
}
}
Log.i(TAG, "Finishing processing thread");
Log.i(TAG, "Finished processing thread");
}
}

16
samples/android/tutorial-1-addopencv/src/org/opencv/samples/tutorial1/Sample1Java.java
View File

@ -15,7 +15,7 @@ import android.view.Window;
import android.view.WindowManager;
public class Sample1Java extends Activity {
private static final String TAG = "Sample::Activity";
private static final String TAG = "OCVSample::Activity";
private MenuItem mItemPreviewRGBA;
private MenuItem mItemPreviewGray;
@ -32,6 +32,7 @@ public class Sample1Java extends Activity {
// Create and set View
mView = new Sample1View(mAppContext);
setContentView(mView);
// Check native OpenCV camera
if( !mView.openCamera() ) {
AlertDialog ad = new AlertDialog.Builder(mAppContext).create();
@ -76,7 +77,7 @@ public class Sample1Java extends Activity {
@Override
protected void onPause() {
Log.i(TAG, "onPause");
Log.i(TAG, "called onPause");
if (null != mView)
mView.releaseCamera();
super.onPause();
@ -84,12 +85,11 @@ public class Sample1Java extends Activity {
@Override
protected void onResume() {
Log.i(TAG, "onResume");
Log.i(TAG, "called onResume");
super.onResume();
Log.i(TAG, "Trying to load OpenCV library");
if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mOpenCVCallBack))
{
if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mOpenCVCallBack)) {
Log.e(TAG, "Cannot connect to OpenCV Manager");
}
}
@ -97,7 +97,7 @@ public class Sample1Java extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
Log.i(TAG, "onCreate");
Log.i(TAG, "called onCreate");
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
@ -105,7 +105,7 @@ public class Sample1Java extends Activity {
@Override
public boolean onCreateOptionsMenu(Menu menu) {
Log.i(TAG, "onCreateOptionsMenu");
Log.i(TAG, "called onCreateOptionsMenu");
mItemPreviewRGBA = menu.add("Preview RGBA");
mItemPreviewGray = menu.add("Preview GRAY");
mItemPreviewCanny = menu.add("Canny");
@ -114,7 +114,7 @@ public class Sample1Java extends Activity {
@Override
public boolean onOptionsItemSelected(MenuItem item) {
Log.i(TAG, "Menu Item selected " + item);
Log.i(TAG, "called onOptionsItemSelected; selected item: " + item);
if (item == mItemPreviewRGBA) {
mView.setViewMode(Sample1View.VIEW_MODE_RGBA);
} else if (item == mItemPreviewGray) {

10
samples/android/tutorial-1-addopencv/src/org/opencv/samples/tutorial1/Sample1View.java
View File

@ -13,6 +13,7 @@ import android.graphics.Bitmap;
import android.util.Log;
class Sample1View extends SampleViewBase {
private static final String TAG = "OCVSample::View";
public static final int VIEW_MODE_RGBA = 0;
public static final int VIEW_MODE_GRAY = 1;
@ -28,11 +29,13 @@ class Sample1View extends SampleViewBase {
public Sample1View(Context context) {
super(context);
mViewMode = VIEW_MODE_RGBA;
Log.i(TAG, "Instantiated new " + this.getClass());
}
@Override
protected void onPreviewStarted(int previewWidth, int previewHeight) {
synchronized (this) {
Log.i(TAG, "called onPreviewStarted("+previewWidth+", "+previewHeight+")");
// initialize Mats before usage
mYuv = new Mat(getFrameHeight() + getFrameHeight() / 2, getFrameWidth(), CvType.CV_8UC1);
mGraySubmat = mYuv.submat(0, getFrameHeight(), 0, getFrameWidth());
@ -42,12 +45,14 @@ class Sample1View extends SampleViewBase {
mBitmap = Bitmap.createBitmap(previewWidth, previewHeight, Bitmap.Config.ARGB_8888);
}
}
@Override
protected void onPreviewStopped() {
Log.i(TAG, "called onPreviewStopped");
if(mBitmap != null) {
mBitmap.recycle();
mBitmap = null;
}
synchronized (this) {
@ -101,6 +106,7 @@ class Sample1View extends SampleViewBase {
}
public void setViewMode(int viewMode) {
Log.i(TAG, "called setViewMode("+viewMode+")");
mViewMode = viewMode;
}

58
samples/android/tutorial-1-addopencv/src/org/opencv/samples/tutorial1/SampleViewBase.java
View File

@ -16,14 +16,14 @@ import android.view.SurfaceHolder;
import android.view.SurfaceView;
public abstract class SampleViewBase extends SurfaceView implements SurfaceHolder.Callback, Runnable {
private static final String TAG = "Sample::SurfaceView";
private static final String TAG = "OCVSample::BaseView";
private Camera mCamera;
private SurfaceHolder mHolder;
private int mFrameWidth;
private int mFrameHeight;
private byte[] mFrame;
private boolean mThreadRun;
private volatile boolean mThreadRun;
private byte[] mBuffer;
private SurfaceTexture mSf;
@ -53,11 +53,29 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
}
public boolean openCamera() {
Log.i(TAG, "openCamera");
releaseCamera();
Log.i(TAG, "Opening Camera");
mCamera = null;
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) {
for (int camIdx = 0; camIdx < Camera.getNumberOfCameras(); ++camIdx) {
try {
mCamera = Camera.open(camIdx);
}
catch (RuntimeException e) {
Log.e(TAG, "Camera #" + camIdx + "failed to open: " + e.getLocalizedMessage());
}
}
}
if(mCamera == null) {
Log.e(TAG, "Can't open camera!");
Log.e(TAG, "Can't open any camera");
return false;
}
@ -70,16 +88,16 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
camera.addCallbackBuffer(mBuffer);
}
});
return true;
}
public void releaseCamera() {
Log.i(TAG, "releaseCamera");
Log.i(TAG, "Releasing Camera");
mThreadRun = false;
synchronized (this) {
if (mCamera != null) {
mCamera.stopPreview();
mCamera.setPreviewCallback(null);
mCamera.release();
mCamera = null;
}
@ -87,10 +105,9 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
onPreviewStopped();
}
public void setupCamera(int width, int height) {
Log.i(TAG, "setupCamera");
synchronized (this) {
public synchronized void setupCamera(int width, int height) {
if (mCamera != null) {
Log.i(TAG, "Setup Camera - " + width + "x" + height);
Camera.Parameters params = mCamera.getParameters();
List<Camera.Size> sizes = params.getSupportedPreviewSizes();
mFrameWidth = width;
@ -140,21 +157,27 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
mCamera.startPreview();
}
}
}
public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) {
Log.i(TAG, "surfaceChanged");
Log.i(TAG, "called surfaceChanged");
// stop preview before making changes
try {
mCamera.stopPreview();
} catch (Exception e){
// ignore: tried to stop a non-existent preview
}
// start preview with new settings
setupCamera(width, height);
}
public void surfaceCreated(SurfaceHolder holder) {
Log.i(TAG, "surfaceCreated");
Log.i(TAG, "called surfaceCreated");
(new Thread(this)).start();
}
public void surfaceDestroyed(SurfaceHolder holder) {
Log.i(TAG, "surfaceDestroyed");
releaseCamera();
Log.i(TAG, "called surfaceDestroyed");
}
/* The bitmap returned by this method shall be owned by the child and released in onPreviewStopped() */
@ -177,13 +200,15 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
public void run() {
mThreadRun = true;
Log.i(TAG, "Starting processing thread");
Log.i(TAG, "Started processing thread");
while (mThreadRun) {
Bitmap bmp = null;
synchronized (this) {
try {
this.wait();
if (!mThreadRun)
break;
bmp = processFrame(mFrame);
} catch (InterruptedException e) {
e.printStackTrace();
@ -198,5 +223,6 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
}
}
}
Log.i(TAG, "Finished processing thread");
}
}

20
samples/android/tutorial-2-opencvcamera/src/org/opencv/samples/tutorial2/Sample2NativeCamera.java
View File

@ -15,7 +15,7 @@ import android.view.Window;
import android.view.WindowManager;
public class Sample2NativeCamera extends Activity {
private static final String TAG = "Sample::Activity";
private static final String TAG = "OCVSample::Activity";
public static final int VIEW_MODE_RGBA = 0;
public static final int VIEW_MODE_GRAY = 1;
@ -24,11 +24,10 @@ public class Sample2NativeCamera extends Activity {
private MenuItem mItemPreviewRGBA;
private MenuItem mItemPreviewGray;
private MenuItem mItemPreviewCanny;
private Sample2View mView;
public static int viewMode = VIEW_MODE_RGBA;
private Sample2View mView;
private BaseLoaderCallback mOpenCVCallBack = new BaseLoaderCallback(this) {
@Override
public void onManagerConnected(int status) {
@ -39,6 +38,7 @@ public class Sample2NativeCamera extends Activity {
// Create and set View
mView = new Sample2View(mAppContext);
setContentView(mView);
// Check native OpenCV camera
if( !mView.openCamera() ) {
AlertDialog ad = new AlertDialog.Builder(mAppContext).create();
@ -53,6 +53,7 @@ public class Sample2NativeCamera extends Activity {
ad.show();
}
} break;
/** OpenCV loader cannot start Google Play **/
case LoaderCallbackInterface.MARKET_ERROR:
{
@ -82,7 +83,7 @@ public class Sample2NativeCamera extends Activity {
@Override
protected void onPause() {
Log.i(TAG, "onPause");
Log.i(TAG, "called onPause");
if (null != mView)
mView.releaseCamera();
super.onPause();
@ -90,12 +91,11 @@ public class Sample2NativeCamera extends Activity {
@Override
protected void onResume() {
Log.i(TAG, "onResume");
Log.i(TAG, "called onResume");
super.onResume();
Log.i(TAG, "Trying to load OpenCV library");
if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mOpenCVCallBack))
{
if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mOpenCVCallBack)) {
Log.e(TAG, "Cannot connect to OpenCV Manager");
}
}
@ -103,7 +103,7 @@ public class Sample2NativeCamera extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
Log.i(TAG, "onCreate");
Log.i(TAG, "called onCreate");
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
@ -111,7 +111,7 @@ public class Sample2NativeCamera extends Activity {
@Override
public boolean onCreateOptionsMenu(Menu menu) {
Log.i(TAG, "onCreateOptionsMenu");
Log.i(TAG, "called onCreateOptionsMenu");
mItemPreviewRGBA = menu.add("Preview RGBA");
mItemPreviewGray = menu.add("Preview GRAY");
mItemPreviewCanny = menu.add("Canny");
@ -120,7 +120,7 @@ public class Sample2NativeCamera extends Activity {
@Override
public boolean onOptionsItemSelected(MenuItem item) {
Log.i(TAG, "Menu Item selected " + item);
Log.i(TAG, "called onOptionsItemSelected; selected item: " + item);
if (item == mItemPreviewRGBA)
viewMode = VIEW_MODE_RGBA;
else if (item == mItemPreviewGray)

6
samples/android/tutorial-2-opencvcamera/src/org/opencv/samples/tutorial2/Sample2View.java
View File

@ -15,16 +15,20 @@ import android.util.Log;
import android.view.SurfaceHolder;
class Sample2View extends SampleCvViewBase {
private static final String TAG = "OCVSample::View";
private Mat mRgba;
private Mat mGray;
private Mat mIntermediateMat;
public Sample2View(Context context) {
super(context);
Log.i(TAG, "Instantiated new " + this.getClass());
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
Log.i(TAG, "called surfaceCreated");
synchronized (this) {
// initialize Mats before usage
mGray = new Mat();
@ -59,7 +63,7 @@ class Sample2View extends SampleCvViewBase {
Utils.matToBitmap(mRgba, bmp);
return bmp;
} catch(Exception e) {
Log.e("org.opencv.samples.tutorial2", "Utils.matToBitmap() throws an exception: " + e.getMessage());
Log.e(TAG, "Utils.matToBitmap() throws an exception: " + e.getMessage());
bmp.recycle();
return null;
}

38
samples/android/tutorial-2-opencvcamera/src/org/opencv/samples/tutorial2/SampleCvViewBase.java
View File

@ -14,7 +14,7 @@ import android.view.SurfaceHolder;
import android.view.SurfaceView;
public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHolder.Callback, Runnable {
private static final String TAG = "Sample::SurfaceView";
private static final String TAG = "OCVSample::BaseView";
private SurfaceHolder mHolder;
private VideoCapture mCamera;
@ -26,34 +26,28 @@ public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHol
Log.i(TAG, "Instantiated new " + this.getClass());
}
public boolean openCamera() {
Log.i(TAG, "openCamera");
synchronized (this) {
releaseCamera();
public synchronized boolean openCamera() {
Log.i(TAG, "Opening Camera");
mCamera = new VideoCapture(Highgui.CV_CAP_ANDROID);
if (!mCamera.isOpened()) {
releaseCamera();
Log.e(TAG, "Failed to open native camera");
Log.e(TAG, "Can't open native camera");
return false;
}
}
return true;
}
public void releaseCamera() {
Log.i(TAG, "releaseCamera");
synchronized (this) {
public synchronized void releaseCamera() {
Log.i(TAG, "Releasing Camera");
if (mCamera != null) {
mCamera.release();
mCamera = null;
}
}
}
public void setupCamera(int width, int height) {
Log.i(TAG, "setupCamera("+width+", "+height+")");
synchronized (this) {
public synchronized void setupCamera(int width, int height) {
if (mCamera != null && mCamera.isOpened()) {
Log.i(TAG, "Setup Camera - " + width + "x" + height);
List<Size> sizes = mCamera.getSupportedPreviewSizes();
int mFrameWidth = width;
int mFrameHeight = height;
@ -75,27 +69,24 @@ public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHol
}
}
}
public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) {
Log.i(TAG, "surfaceChanged");
Log.i(TAG, "called surfaceChanged");
setupCamera(width, height);
}
public void surfaceCreated(SurfaceHolder holder) {
Log.i(TAG, "surfaceCreated");
Log.i(TAG, "called surfaceCreated");
(new Thread(this)).start();
}
public void surfaceDestroyed(SurfaceHolder holder) {
Log.i(TAG, "surfaceDestroyed");
releaseCamera();
Log.i(TAG, "called surfaceDestroyed");
}
protected abstract Bitmap processFrame(VideoCapture capture);
public void run() {
Log.i(TAG, "Starting processing thread");
Log.i(TAG, "Started processing thread");
while (true) {
Bitmap bmp = null;
@ -115,13 +106,12 @@ public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHol
Canvas canvas = mHolder.lockCanvas();
if (canvas != null) {
canvas.drawColor(0, android.graphics.PorterDuff.Mode.CLEAR);
canvas.drawBitmap(bmp, (canvas.getWidth()-bmp.getWidth()) / 2, (canvas.getHeight()-bmp.getHeight()) / 2, null);
canvas.drawBitmap(bmp, (canvas.getWidth() - bmp.getWidth()) / 2, (canvas.getHeight() - bmp.getHeight()) / 2, null);
mHolder.unlockCanvasAndPost(canvas);
}
bmp.recycle();
}
}
Log.i(TAG, "Finishing processing thread");
Log.i(TAG, "Finished processing thread");
}
}

12
samples/android/tutorial-3-native/src/org/opencv/samples/tutorial3/Sample3Native.java
View File

@ -13,7 +13,8 @@ import android.view.Window;
import android.view.WindowManager;
public class Sample3Native extends Activity {
private static final String TAG = "Sample::Activity";
private static final String TAG = "OCVSample::Activity";
private Sample3View mView;
private BaseLoaderCallback mOpenCVCallBack = new BaseLoaderCallback(this) {
@ -73,7 +74,7 @@ public class Sample3Native extends Activity {
@Override
protected void onPause() {
Log.i(TAG, "onPause");
Log.i(TAG, "called onPause");
if (null != mView)
mView.releaseCamera();
super.onPause();
@ -81,12 +82,11 @@ public class Sample3Native extends Activity {
@Override
protected void onResume() {
Log.i(TAG, "onResume");
Log.i(TAG, "called onResume");
super.onResume();
Log.i(TAG, "Trying to load OpenCV library");
if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mOpenCVCallBack))
{
if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mOpenCVCallBack)) {
Log.e(TAG, "Cannot connect to OpenCV Manager");
}
}
@ -94,7 +94,7 @@ public class Sample3Native extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
Log.i(TAG, "onCreate");
Log.i(TAG, "called onCreate");
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

11
samples/android/tutorial-3-native/src/org/opencv/samples/tutorial3/Sample3View.java
View File

@ -2,8 +2,10 @@ package org.opencv.samples.tutorial3;
import android.content.Context;
import android.graphics.Bitmap;
import android.util.Log;
class Sample3View extends SampleViewBase {
private static final String TAG = "OCVSample::View";
private int mFrameSize;
private Bitmap mBitmap;
@ -11,13 +13,16 @@ class Sample3View extends SampleViewBase {
public Sample3View(Context context) {
super(context);
Log.i(TAG, "Instantiated new " + this.getClass());
}
@Override
protected void onPreviewStarted(int previewWidtd, int previewHeight) {
mFrameSize = previewWidtd * previewHeight;
protected void onPreviewStarted(int previewWidth, int previewHeight) {
Log.i(TAG, "called onPreviewStarted("+previewWidth+", "+previewHeight+")");
mFrameSize = previewWidth * previewHeight;
mRGBA = new int[mFrameSize];
mBitmap = Bitmap.createBitmap(previewWidtd, previewHeight, Bitmap.Config.ARGB_8888);
mBitmap = Bitmap.createBitmap(previewWidth, previewHeight, Bitmap.Config.ARGB_8888);
}
@Override

58
samples/android/tutorial-3-native/src/org/opencv/samples/tutorial3/SampleViewBase.java
View File

@ -15,14 +15,14 @@ import android.view.SurfaceHolder;
import android.view.SurfaceView;
public abstract class SampleViewBase extends SurfaceView implements SurfaceHolder.Callback, Runnable {
private static final String TAG = "Sample::SurfaceView";
private static final String TAG = "OCVSample::BaseView";
private Camera mCamera;
private SurfaceHolder mHolder;
private int mFrameWidth;
private int mFrameHeight;
private byte[] mFrame;
private boolean mThreadRun;
private volatile boolean mThreadRun;
private byte[] mBuffer;
private SurfaceTexture mSf;
@ -52,11 +52,29 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
}
public boolean openCamera() {
Log.i(TAG, "openCamera");
releaseCamera();
Log.i(TAG, "Opening Camera");
mCamera = null;
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) {
for (int camIdx = 0; camIdx < Camera.getNumberOfCameras(); ++camIdx) {
try {
mCamera = Camera.open(camIdx);
}
catch (RuntimeException e) {
Log.e(TAG, "Camera #" + camIdx + "failed to open: " + e.getLocalizedMessage());
}
}
}
if(mCamera == null) {
Log.e(TAG, "Can't open camera!");
Log.e(TAG, "Can't open any camera");
return false;
}
@ -69,11 +87,12 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
camera.addCallbackBuffer(mBuffer);
}
});
return true;
}
public void releaseCamera() {
Log.i(TAG, "releaseCamera");
Log.i(TAG, "Releasing Camera");
mThreadRun = false;
synchronized (this) {
if (mCamera != null) {
@ -86,10 +105,9 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
onPreviewStopped();
}
public void setupCamera(int width, int height) {
Log.i(TAG, "setupCamera");
synchronized (this) {
public synchronized void setupCamera(int width, int height) {
if (mCamera != null) {
Log.i(TAG, "Setup Camera - " + width + "x" + height);
Camera.Parameters params = mCamera.getParameters();
List<Camera.Size> sizes = params.getSupportedPreviewSizes();
mFrameWidth = width;
@ -139,24 +157,29 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
mCamera.startPreview();
}
}
}
public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) {
Log.i(TAG, "surfaceChanged");
Log.i(TAG, "called surfaceChanged");
// stop preview before making changes
try {
mCamera.stopPreview();
} catch (Exception e){
// ignore: tried to stop a non-existent preview
}
// start preview with new settings
setupCamera(width, height);
}
public void surfaceCreated(SurfaceHolder holder) {
Log.i(TAG, "surfaceCreated");
Log.i(TAG, "called surfaceCreated");
(new Thread(this)).start();
}
public void surfaceDestroyed(SurfaceHolder holder) {
Log.i(TAG, "surfaceDestroyed");
releaseCamera();
Log.i(TAG, "called surfaceDestroyed");
}
/* The bitmap returned by this method shall be owned by the child and released in onPreviewStopped() */
protected abstract Bitmap processFrame(byte[] data);
@ -177,13 +200,15 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
public void run() {
mThreadRun = true;
Log.i(TAG, "Starting processing thread");
Log.i(TAG, "Started processing thread");
while (mThreadRun) {
Bitmap bmp = null;
synchronized (this) {
try {
this.wait();
if (!mThreadRun)
break;
bmp = processFrame(mFrame);
} catch (InterruptedException e) {
e.printStackTrace();
@ -198,5 +223,6 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
}
}
}
Log.i(TAG, "Finished processing thread");
}
}

18
samples/android/tutorial-4-mixed/src/org/opencv/samples/tutorial4/Sample4Mixed.java
View File

@ -15,7 +15,7 @@ import android.view.Window;
import android.view.WindowManager;
public class Sample4Mixed extends Activity {
private static final String TAG = "Sample::Activity";
private static final String TAG = "OCVSample::Activity";
private MenuItem mItemPreviewRGBA;
private MenuItem mItemPreviewGray;
@ -52,6 +52,7 @@ public class Sample4Mixed extends Activity {
ad.show();
}
} break;
/** OpenCV loader cannot start Google Play **/
case LoaderCallbackInterface.MARKET_ERROR:
{
@ -81,7 +82,7 @@ public class Sample4Mixed extends Activity {
@Override
protected void onPause() {
Log.i(TAG, "onPause");
Log.i(TAG, "called onPause");
if (null != mView)
mView.releaseCamera();
super.onPause();
@ -89,12 +90,11 @@ public class Sample4Mixed extends Activity {
@Override
protected void onResume() {
Log.i(TAG, "onResume");
Log.i(TAG, "called onResume");
super.onResume();
Log.i(TAG, "Trying to load OpenCV library");
if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mOpenCVCallBack))
{
if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mOpenCVCallBack)) {
Log.e(TAG, "Cannot connect to OpenCV Manager");
}
}
@ -102,14 +102,15 @@ public class Sample4Mixed extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
Log.i(TAG, "called onCreate");
super.onCreate(savedInstanceState);
Log.i(TAG, "onCreate");
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
Log.i(TAG, "onCreateOptionsMenu");
Log.i(TAG, "called onCreateOptionsMenu");
mItemPreviewRGBA = menu.add("Preview RGBA");
mItemPreviewGray = menu.add("Preview GRAY");
mItemPreviewCanny = menu.add("Canny");
@ -117,8 +118,9 @@ public class Sample4Mixed extends Activity {
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
Log.i(TAG, "Menu Item selected " + item);
Log.i(TAG, "called onOptionsItemSelected; selected item: " + item);
if (item == mItemPreviewRGBA) {
mView.setViewMode(Sample4View.VIEW_MODE_RGBA);
} else if (item == mItemPreviewGray) {

14
samples/android/tutorial-4-mixed/src/org/opencv/samples/tutorial4/Sample4View.java
View File

@ -10,6 +10,7 @@ import android.graphics.Bitmap;
import android.util.Log;
class Sample4View extends SampleViewBase {
private static final String TAG = "OCVSample::View";
public static final int VIEW_MODE_RGBA = 0;
public static final int VIEW_MODE_GRAY = 1;
@ -20,16 +21,17 @@ class Sample4View extends SampleViewBase {
private Mat mRgba;
private Mat mGraySubmat;
private Mat mIntermediateMat;
private int mViewMode;
private Bitmap mBitmap;
private int mViewMode;
public Sample4View(Context context) {
super(context);
}
@Override
protected void onPreviewStarted(int previewWidtd, int previewHeight) {
protected void onPreviewStarted(int previewWidth, int previewHeight) {
Log.i(TAG, "called onPreviewStarted("+previewWidth+", "+previewHeight+")");
// initialize Mats before usage
mYuv = new Mat(getFrameHeight() + getFrameHeight() / 2, getFrameWidth(), CvType.CV_8UC1);
mGraySubmat = mYuv.submat(0, getFrameHeight(), 0, getFrameWidth());
@ -37,17 +39,19 @@ class Sample4View extends SampleViewBase {
mRgba = new Mat();
mIntermediateMat = new Mat();
mBitmap = Bitmap.createBitmap(previewWidtd, previewHeight, Bitmap.Config.ARGB_8888);
mBitmap = Bitmap.createBitmap(previewWidth, previewHeight, Bitmap.Config.ARGB_8888);
}
@Override
protected void onPreviewStopped() {
Log.i(TAG, "called onPreviewStopped");
if (mBitmap != null) {
mBitmap.recycle();
mBitmap = null;
}
synchronized (this) {
// Explicitly deallocate Mats
if (mYuv != null)
mYuv.release();
@ -62,6 +66,7 @@ class Sample4View extends SampleViewBase {
mRgba = null;
mGraySubmat = null;
mIntermediateMat = null;
}
}
@ -105,6 +110,7 @@ class Sample4View extends SampleViewBase {
public native void FindFeatures(long matAddrGr, long matAddrRgba);
public void setViewMode(int viewMode) {
Log.i(TAG, "called setViewMode("+viewMode+")");
mViewMode = viewMode;
}
}

61
samples/android/tutorial-4-mixed/src/org/opencv/samples/tutorial4/SampleViewBase.java
View File

@ -2,6 +2,7 @@ package org.opencv.samples.tutorial4;
import java.io.IOException;
import java.util.List;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
@ -15,14 +16,14 @@ import android.view.SurfaceHolder;
import android.view.SurfaceView;
public abstract class SampleViewBase extends SurfaceView implements SurfaceHolder.Callback, Runnable {
private static final String TAG = "Sample::SurfaceView";
private static final String TAG = "OCVSample::BaseView";
private Camera mCamera;
private SurfaceHolder mHolder;
private int mFrameWidth;
private int mFrameHeight;
private byte[] mFrame;
private boolean mThreadRun;
private volatile boolean mThreadRun;
private byte[] mBuffer;
private SurfaceTexture mSf;
@ -52,11 +53,29 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
}
public boolean openCamera() {
Log.i(TAG, "openCamera");
releaseCamera();
Log.i(TAG, "Opening Camera");
mCamera = null;
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) {
for (int camIdx = 0; camIdx < Camera.getNumberOfCameras(); ++camIdx) {
try {
mCamera = Camera.open(camIdx);
}
catch (RuntimeException e) {
Log.e(TAG, "Camera #" + camIdx + "failed to open: " + e.getLocalizedMessage());
}
}
}
if(mCamera == null) {
Log.e(TAG, "Can't open camera!");
Log.e(TAG, "Can't open any camera");
return false;
}
@ -69,16 +88,16 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
camera.addCallbackBuffer(mBuffer);
}
});
return true;
}
public void releaseCamera() {
Log.i(TAG, "releaseCamera");
Log.i(TAG, "Releasing Camera");
mThreadRun = false;
synchronized (this) {
if (mCamera != null) {
mCamera.stopPreview();
mCamera.setPreviewCallback(null);
mCamera.release();
mCamera = null;
}
@ -86,10 +105,9 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
onPreviewStopped();
}
public void setupCamera(int width, int height) {
Log.i(TAG, "setupCamera");
synchronized (this) {
public synchronized void setupCamera(int width, int height) {
if (mCamera != null) {
Log.i(TAG, "Setup Camera - " + width + "x" + height);
Camera.Parameters params = mCamera.getParameters();
List<Camera.Size> sizes = params.getSupportedPreviewSizes();
mFrameWidth = width;
@ -139,25 +157,29 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
mCamera.startPreview();
}
}
}
public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) {
Log.i(TAG, "surfaceChanged");
Log.i(TAG, "called surfaceChanged");
// stop preview before making changes
try {
mCamera.stopPreview();
} catch (Exception e){
// ignore: tried to stop a non-existent preview
}
// start preview with new settings
setupCamera(width, height);
}
public void surfaceCreated(SurfaceHolder holder) {
Log.i(TAG, "surfaceCreated");
Log.i(TAG, "called surfaceCreated");
(new Thread(this)).start();
}
public void surfaceDestroyed(SurfaceHolder holder) {
Log.i(TAG, "surfaceDestroyed");
releaseCamera();
Log.i(TAG, "called surfaceDestroyed");
}
/* The bitmap returned by this method shall be owned by the child and released in onPreviewStopped() */
protected abstract Bitmap processFrame(byte[] data);
@ -178,13 +200,15 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
public void run() {
mThreadRun = true;
Log.i(TAG, "Starting processing thread");
Log.i(TAG, "Started processing thread");
while (mThreadRun) {
Bitmap bmp = null;
synchronized (this) {
try {
this.wait();
if (!mThreadRun)
break;
bmp = processFrame(mFrame);
} catch (InterruptedException e) {
e.printStackTrace();
@ -199,5 +223,6 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
}
}
}
Log.i(TAG, "Finished processing thread");
}
}