--- /dev/null
+<?xml version="1.0" encoding="utf-8"?>\r
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"\r
+ package="org.opencv.samples"\r
+ android:versionCode="1"\r
+ android:versionName="1.0">\r
+\r
+ <supports-screens android:resizeable="true"\r
+ android:smallScreens="true" \r
+ android:normalScreens="true" \r
+ android:largeScreens="true" \r
+ android:anyDensity="true" />\r
+\r
+ <application android:label="@string/app_name" android:icon="@drawable/icon">\r
+ <activity android:name="Sample0Base"\r
+ android:label="@string/app_name">\r
+ <intent-filter>\r
+ <action android:name="android.intent.action.MAIN" />\r
+ <category android:name="android.intent.category.LAUNCHER" />\r
+ </intent-filter>\r
+ </activity>\r
+ </application>\r
+ \r
+ <uses-sdk android:minSdkVersion="8" />\r
+\r
+ <uses-permission android:name="android.permission.CAMERA"/>\r
+ <uses-feature android:name="android.hardware.camera" />\r
+ <uses-feature android:name="android.hardware.camera.autofocus" />\r
+\r
+</manifest> \r
--- /dev/null
+package org.opencv.samples;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.Window;
+
+public class Sample0Base extends Activity {
+ private static final String TAG = "Sample0Base::Activity";
+
+ public static final int view_mode_rgba = 0;
+ public static final int view_mode_gray = 1;
+
+ private MenuItem item_preview_rgba;
+ private MenuItem item_preview_gray;
+
+ public int view_mode;
+
+ /** Called when the activity is first created. */
+ @Override
+ public void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ requestWindowFeature(Window.FEATURE_NO_TITLE);
+ setContentView( new Sample0View(this) );
+ view_mode = view_mode_rgba;
+ }
+
+ public boolean onCreateOptionsMenu(Menu menu) {
+ item_preview_rgba = menu.add("Preview RGBA");
+ item_preview_gray = menu.add("Preview GRAY");
+ return true;
+ }
+
+ public boolean onOptionsItemSelected (MenuItem item) {
+ Log.i(TAG, "Menu Item selected " + item);
+ if (item == item_preview_rgba)
+ view_mode = view_mode_rgba;
+ else if (item == item_preview_gray)
+ view_mode = view_mode_gray;
+ return true;
+ }
+}
--- /dev/null
+package org.opencv.samples;
+
+import java.util.List;
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.hardware.Camera;
+import android.hardware.Camera.PreviewCallback;
+import android.util.Log;
+import android.view.SurfaceHolder;
+import android.view.SurfaceView;
+
+class Sample0View extends SurfaceView implements SurfaceHolder.Callback, Runnable{
+ private static final String TAG = "Sample0Base::View";
+
+ private Camera camera;
+ private SurfaceHolder holder;
+ private int frame_width;
+ private int frame_height;
+ private byte[] frame;
+
+ private boolean mThreadRun;
+
+
+ public Sample0View(Context context) {
+ super(context);
+ holder = getHolder();
+ holder.addCallback(this);
+ }
+
+
+ public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) {
+ if ( camera != null) {
+ Camera.Parameters params = camera.getParameters();
+ List<Camera.Size> sizes = params.getSupportedPreviewSizes();
+ frame_width = width;
+ frame_height = height;
+
+ //selecting optimal camera preview size
+ {
+ double minDiff = Double.MAX_VALUE;
+ for (Camera.Size size : sizes) {
+ if (Math.abs(size.height - height) < minDiff) {
+ frame_width = size.width;
+ frame_height = size.height;
+ minDiff = Math.abs(size.height - height);
+ }
+ }
+ }
+ params.setPreviewSize(frame_width, frame_height);
+ camera.setParameters(params);
+ camera.startPreview();
+ }
+ }
+
+ public void surfaceCreated(SurfaceHolder holder) {
+ camera = Camera.open();
+ camera.setPreviewCallback(
+ new PreviewCallback() {
+ public void onPreviewFrame(byte[] data, Camera camera) {
+ synchronized(Sample0View.this)
+ {
+ frame = data;
+ Sample0View.this.notify();
+ }
+ }
+ }
+ );
+ (new Thread(this)).start();
+ }
+
+ public void surfaceDestroyed(SurfaceHolder holder) {
+ mThreadRun = false;
+ if(camera != null) {
+ camera.stopPreview();
+ camera.setPreviewCallback(null);
+ camera.release();
+ camera = null;
+ }
+ }
+
+ public void run() {
+ mThreadRun = true;
+ Log.i(TAG, "Starting thread");
+ while(mThreadRun) {
+ byte[] data = null;
+ synchronized(this)
+ {
+ try {
+ this.wait();
+ data = frame;
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ }
+ }
+
+ Canvas canvas = holder.lockCanvas();
+
+ int frameSize = frame_width*frame_height;
+ int[] rgba = new int[frameSize];
+
+ Sample0Base a = (Sample0Base)getContext();
+ int view_mode = a.view_mode;
+ if(view_mode == Sample0Base.view_mode_gray) {
+ for(int i = 0; i < frameSize; i++) {
+ int y = (0xff & ((int)data[i]));
+ rgba[i] = 0xff000000 + (y << 16) + (y << 8) + y;
+ }
+ }
+ else if (view_mode == Sample0Base.view_mode_rgba) {
+ for(int i = 0; i < frame_height; i++)
+ for(int j = 0; j < frame_width; j++) {
+ int y = (0xff & ((int)data[i*frame_width+j]));
+ int u = (0xff & ((int)data[frameSize + (i >> 1) * frame_width + (j & ~1) + 0]));
+ int v = (0xff & ((int)data[frameSize + (i >> 1) * frame_width + (j & ~1) + 1]));
+ if (y < 16) y = 16;
+
+ int r = Math.round(1.164f * (y - 16) + 1.596f * (v - 128) );
+ int g = Math.round(1.164f * (y - 16) - 0.813f * (v - 128) - 0.391f * (u - 128));
+ int b = Math.round(1.164f * (y - 16) + 2.018f * (u - 128));
+
+ if (r < 0) r = 0; if (r > 255) r = 255;
+ if (g < 0) g = 0; if (g > 255) g = 255;
+ if (b < 0) b = 0; if (b > 255) b = 255;
+
+ rgba[i*frame_width+j] = 0xff000000 + (b << 16) + (g << 8) + r;
+ }
+ }
+
+ Bitmap bmp = Bitmap.createBitmap(frame_width, frame_height, Bitmap.Config.ARGB_8888);
+ bmp.setPixels(rgba, 0/*offset*/, frame_width /*stride*/, 0, 0, frame_width, frame_height);
+
+ canvas.drawBitmap(bmp, (canvas.getWidth()-frame_width)/2, (canvas.getHeight()-frame_height)/2, null);
+ holder.unlockCanvasAndPost(canvas);
+ }
+ }
+}
\ No newline at end of file
projects / profile / ivi / opencv.git / commitdiff
