merged all the latest changes from 2.4 to trunk
This commit is contained in:
@@ -1,6 +1,6 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<projectDescription>
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<name>Tutorial 2 Advanced - 2. Mix Java+Native OpenCV</name>
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<name>Tutorial 4 (Advanced) - Mix Java+Native OpenCV</name>
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<comment></comment>
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<projects>
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</projects>
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@@ -8,19 +8,14 @@ import android.view.MenuItem;
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import android.view.Window;
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public class Sample4Mixed extends Activity {
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private static final String TAG = "Sample::Activity";
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public static final int VIEW_MODE_RGBA = 0;
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public static final int VIEW_MODE_GRAY = 1;
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public static final int VIEW_MODE_CANNY = 2;
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public static final int VIEW_MODE_FEATURES = 5;
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private static final String TAG = "Sample::Activity";
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private MenuItem mItemPreviewRGBA;
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private MenuItem mItemPreviewGray;
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private MenuItem mItemPreviewCanny;
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private MenuItem mItemPreviewFeatures;
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private Sample4View mView;
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public static int viewMode = VIEW_MODE_RGBA;
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public Sample4Mixed() {
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Log.i(TAG, "Instantiated new " + this.getClass());
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@@ -32,7 +27,8 @@ public class Sample4Mixed extends Activity {
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super.onCreate(savedInstanceState);
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Log.i(TAG, "onCreate");
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requestWindowFeature(Window.FEATURE_NO_TITLE);
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setContentView(new Sample4View(this));
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mView = new Sample4View(this);
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setContentView(mView);
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}
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public boolean onCreateOptionsMenu(Menu menu) {
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@@ -46,14 +42,15 @@ public class Sample4Mixed extends Activity {
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public boolean onOptionsItemSelected(MenuItem item) {
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Log.i(TAG, "Menu Item selected " + item);
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if (item == mItemPreviewRGBA)
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viewMode = VIEW_MODE_RGBA;
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else if (item == mItemPreviewGray)
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viewMode = VIEW_MODE_GRAY;
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else if (item == mItemPreviewCanny)
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viewMode = VIEW_MODE_CANNY;
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else if (item == mItemPreviewFeatures)
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viewMode = VIEW_MODE_FEATURES;
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if (item == mItemPreviewRGBA) {
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mView.setViewMode(Sample4View.VIEW_MODE_RGBA);
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} else if (item == mItemPreviewGray) {
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mView.setViewMode(Sample4View.VIEW_MODE_GRAY);
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} else if (item == mItemPreviewCanny) {
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mView.setViewMode(Sample4View.VIEW_MODE_CANNY);
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} else if (item == mItemPreviewFeatures) {
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mView.setViewMode(Sample4View.VIEW_MODE_FEATURES);
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}
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return true;
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}
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}
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@@ -11,87 +11,106 @@ import android.util.Log;
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import android.view.SurfaceHolder;
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class Sample4View extends SampleViewBase {
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public static final int VIEW_MODE_RGBA = 0;
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public static final int VIEW_MODE_GRAY = 1;
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public static final int VIEW_MODE_CANNY = 2;
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public static final int VIEW_MODE_FEATURES = 5;
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private Mat mYuv;
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private Mat mRgba;
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private Mat mGraySubmat;
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private Mat mIntermediateMat;
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private int mViewMode;
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private Bitmap mBitmap;
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public Sample4View(Context context) {
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super(context);
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}
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@Override
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protected void onPreviewStared(int previewWidtd, int previewHeight) {
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// initialize Mats before usage
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mYuv = new Mat(getFrameHeight() + getFrameHeight() / 2, getFrameWidth(), CvType.CV_8UC1);
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mGraySubmat = mYuv.submat(0, getFrameHeight(), 0, getFrameWidth());
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@Override
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public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) {
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super.surfaceChanged(_holder, format, width, height);
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mRgba = new Mat();
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mIntermediateMat = new Mat();
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mBitmap = Bitmap.createBitmap(previewWidtd, previewHeight, Bitmap.Config.ARGB_8888);
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}
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synchronized (this) {
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// initialize Mats before usage
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mYuv = new Mat(getFrameHeight() + getFrameHeight() / 2, getFrameWidth(), CvType.CV_8UC1);
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mGraySubmat = mYuv.submat(0, getFrameHeight(), 0, getFrameWidth());
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@Override
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protected void onPreviewStopped() {
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if (mBitmap != null) {
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mBitmap.recycle();
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mBitmap = null;
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}
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// Explicitly deallocate Mats
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if (mYuv != null)
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mYuv.release();
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if (mRgba != null)
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mRgba.release();
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if (mGraySubmat != null)
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mGraySubmat.release();
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if (mIntermediateMat != null)
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mIntermediateMat.release();
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mYuv = null;
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mRgba = null;
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mGraySubmat = null;
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mIntermediateMat = null;
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}
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mRgba = new Mat();
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mIntermediateMat = new Mat();
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}
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}
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@Override
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protected Bitmap processFrame(byte[] data) {
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mYuv.put(0, 0, data);
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switch (Sample4Mixed.viewMode) {
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case Sample4Mixed.VIEW_MODE_GRAY:
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final int viewMode = mViewMode;
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switch (viewMode) {
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case VIEW_MODE_GRAY:
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Imgproc.cvtColor(mGraySubmat, mRgba, Imgproc.COLOR_GRAY2RGBA, 4);
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break;
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case Sample4Mixed.VIEW_MODE_RGBA:
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case VIEW_MODE_RGBA:
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Imgproc.cvtColor(mYuv, mRgba, Imgproc.COLOR_YUV420sp2RGB, 4);
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break;
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case Sample4Mixed.VIEW_MODE_CANNY:
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case VIEW_MODE_CANNY:
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Imgproc.Canny(mGraySubmat, mIntermediateMat, 80, 100);
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Imgproc.cvtColor(mIntermediateMat, mRgba, Imgproc.COLOR_GRAY2BGRA, 4);
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break;
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case Sample4Mixed.VIEW_MODE_FEATURES:
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case VIEW_MODE_FEATURES:
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Imgproc.cvtColor(mYuv, mRgba, Imgproc.COLOR_YUV420sp2RGB, 4);
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FindFeatures(mGraySubmat.getNativeObjAddr(), mRgba.getNativeObjAddr());
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break;
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}
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Bitmap bmp = Bitmap.createBitmap(getFrameWidth(), getFrameHeight(), Bitmap.Config.ARGB_8888);
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Bitmap bmp = mBitmap;
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try {
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Utils.matToBitmap(mRgba, bmp);
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return bmp;
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Utils.matToBitmap(mRgba, bmp);
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} catch(Exception e) {
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Log.e("org.opencv.samples.puzzle15", "Utils.matToBitmap() throws an exception: " + e.getMessage());
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Log.e("org.opencv.samples.puzzle15", "Utils.matToBitmap() throws an exception: " + e.getMessage());
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bmp.recycle();
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return null;
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bmp = null;
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}
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}
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@Override
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public void run() {
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super.run();
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synchronized (this) {
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// Explicitly deallocate Mats
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if (mYuv != null)
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mYuv.release();
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if (mRgba != null)
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mRgba.release();
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if (mGraySubmat != null)
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mGraySubmat.release();
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if (mIntermediateMat != null)
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mIntermediateMat.release();
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mYuv = null;
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mRgba = null;
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mGraySubmat = null;
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mIntermediateMat = null;
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}
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return bmp;
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}
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public native void FindFeatures(long matAddrGr, long matAddrRgba);
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static {
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System.loadLibrary("opencv_java");
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System.loadLibrary("mixed_sample");
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}
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public void setViewMode(int viewMode) {
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mViewMode = viewMode;
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}
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}
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@@ -6,6 +6,7 @@ import java.util.List;
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import android.content.Context;
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import android.graphics.Bitmap;
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import android.graphics.Canvas;
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import android.graphics.ImageFormat;
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import android.graphics.SurfaceTexture;
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import android.hardware.Camera;
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import android.hardware.Camera.PreviewCallback;
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@@ -23,6 +24,8 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
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private int mFrameHeight;
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private byte[] mFrame;
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private boolean mThreadRun;
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private byte[] mBuffer;
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public SampleViewBase(Context context) {
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super(context);
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@@ -56,7 +59,7 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
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// selecting optimal camera preview size
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{
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double minDiff = Double.MAX_VALUE;
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int minDiff = Integer.MAX_VALUE;
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for (Camera.Size size : sizes) {
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if (Math.abs(size.height - height) < minDiff) {
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mFrameWidth = size.width;
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@@ -67,12 +70,34 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
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}
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params.setPreviewSize(getFrameWidth(), getFrameHeight());
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List<String> FocusModes = params.getSupportedFocusModes();
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if (FocusModes.contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO))
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{
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params.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO);
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}
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mCamera.setParameters(params);
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/* Now allocate the buffer */
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params = mCamera.getParameters();
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int size = params.getPreviewSize().width * params.getPreviewSize().height;
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size = size * ImageFormat.getBitsPerPixel(params.getPreviewFormat()) / 8;
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mBuffer = new byte[size];
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/* The buffer where the current frame will be coppied */
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mFrame = new byte [size];
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mCamera.addCallbackBuffer(mBuffer);
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try {
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setPreview();
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} catch (IOException e) {
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Log.e(TAG, "mCamera.setPreviewDisplay/setPreviewTexture fails: " + e);
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}
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setPreview();
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} catch (IOException e) {
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Log.e(TAG, "mCamera.setPreviewDisplay/setPreviewTexture fails: " + e);
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}
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/* Notify that the preview is about to be started and deliver preview size */
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onPreviewStared(params.getPreviewSize().width, params.getPreviewSize().height);
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/* Now we can start a preview */
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mCamera.startPreview();
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}
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}
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@@ -80,14 +105,17 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
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public void surfaceCreated(SurfaceHolder holder) {
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Log.i(TAG, "surfaceCreated");
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mCamera = Camera.open();
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mCamera.setPreviewCallback(new PreviewCallback() {
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mCamera.setPreviewCallbackWithBuffer(new PreviewCallback() {
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public void onPreviewFrame(byte[] data, Camera camera) {
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synchronized (SampleViewBase.this) {
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mFrame = data;
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SampleViewBase.this.notify();
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System.arraycopy(data, 0, mFrame, 0, data.length);
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SampleViewBase.this.notify();
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}
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camera.addCallbackBuffer(mBuffer);
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}
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});
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(new Thread(this)).start();
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}
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@@ -102,10 +130,27 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
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mCamera = null;
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}
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}
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onPreviewStopped();
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}
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/* The bitmap returned by this method shall be owned by the child and released in onPreviewStopped() */
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protected abstract Bitmap processFrame(byte[] data);
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/**
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* This method is called when the preview process is beeing started. It is called before the first frame delivered and processFrame is called
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* It is called with the width and height parameters of the preview process. It can be used to prepare the data needed during the frame processing.
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* @param previewWidth - the width of the preview frames that will be delivered via processFrame
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* @param previewHeight - the height of the preview frames that will be delivered via processFrame
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*/
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protected abstract void onPreviewStared(int previewWidtd, int previewHeight);
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/**
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* This method is called when preview is stopped. When this method is called the preview stopped and all the processing of frames already completed.
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* If the Bitmap object returned via processFrame is cached - it is a good time to recycle it.
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* Any other resourcses used during the preview can be released.
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*/
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protected abstract void onPreviewStopped();
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public void run() {
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mThreadRun = true;
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Log.i(TAG, "Starting processing thread");
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@@ -127,12 +172,7 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
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canvas.drawBitmap(bmp, (canvas.getWidth() - getFrameWidth()) / 2, (canvas.getHeight() - getFrameHeight()) / 2, null);
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mHolder.unlockCanvasAndPost(canvas);
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}
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bmp.recycle();
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}
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}
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}
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static {
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System.loadLibrary("opencv_java");
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}
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}
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Reference in New Issue
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