generic-library/opencv
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merged all the latest changes from 2.4 to trunk

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This commit is contained in:
Vadim Pisarevsky
2012-04-13 21:50:59 +00:00
parent 020f9a6047
commit 2fd1e2ea57
416 changed files with 12852 additions and 6070 deletions
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2
samples/android/tutorial-3-native/.project
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@@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>Tutorial 2 Advanced - 1. Add Native OpenCV</name>
<name>Tutorial 3 (Advanced) - Add Native OpenCV</name>
<comment></comment>
<projects>
</projects>

31
samples/android/tutorial-3-native/src/org/opencv/samples/tutorial3/Sample3View.java
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@@ -4,19 +4,40 @@ import android.content.Context;
import android.graphics.Bitmap;
class Sample3View extends SampleViewBase {
private int mFrameSize;
private Bitmap mBitmap;
private int[] mRGBA;
public Sample3View(Context context) {
super(context);
}
@Override
protected void onPreviewStared(int previewWidtd, int previewHeight) {
mFrameSize = previewWidtd * previewHeight;
mRGBA = new int[mFrameSize];
mBitmap = Bitmap.createBitmap(previewWidtd, previewHeight, Bitmap.Config.ARGB_8888);
}
@Override
protected void onPreviewStopped() {
if(mBitmap != null) {
mBitmap.recycle();
mBitmap = null;
}
mRGBA = null;
}
@Override
protected Bitmap processFrame(byte[] data) {
int frameSize = getFrameWidth() * getFrameHeight();
int[] rgba = new int[frameSize];
int[] rgba = mRGBA;
FindFeatures(getFrameWidth(), getFrameHeight(), data, rgba);
Bitmap bmp = Bitmap.createBitmap(getFrameWidth(), getFrameHeight(), Bitmap.Config.ARGB_8888);
Bitmap bmp = mBitmap;
bmp.setPixels(rgba, 0/* offset */, getFrameWidth() /* stride */, 0, 0, getFrameWidth(), getFrameHeight());
return bmp;
}
@@ -24,10 +45,6 @@ class Sample3View extends SampleViewBase {
public native void FindFeatures(int width, int height, byte yuv[], int[] rgba);
static {
try {
System.loadLibrary("opencv_java");
} catch(Exception e) {
}
System.loadLibrary("native_sample");
}
}

60
samples/android/tutorial-3-native/src/org/opencv/samples/tutorial3/SampleViewBase.java
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@@ -6,6 +6,7 @@ import java.util.List;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.ImageFormat;
import android.graphics.SurfaceTexture;
import android.hardware.Camera;
import android.hardware.Camera.PreviewCallback;
@@ -23,6 +24,8 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
private int mFrameHeight;
private byte[] mFrame;
private boolean mThreadRun;
private byte[] mBuffer;
public SampleViewBase(Context context) {
super(context);
@@ -45,7 +48,7 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
else
mCamera.setPreviewDisplay(null);
}
public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) {
Log.i(TAG, "surfaceCreated");
if (mCamera != null) {
@@ -56,7 +59,7 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
// selecting optimal camera preview size
{
double minDiff = Double.MAX_VALUE;
int minDiff = Integer.MAX_VALUE;
for (Camera.Size size : sizes) {
if (Math.abs(size.height - height) < minDiff) {
mFrameWidth = size.width;
@@ -67,12 +70,34 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
}
params.setPreviewSize(getFrameWidth(), getFrameHeight());
List<String> FocusModes = params.getSupportedFocusModes();
if (FocusModes.contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO))
{
params.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO);
}
mCamera.setParameters(params);
try {
setPreview();
/* Now allocate the buffer */
params = mCamera.getParameters();
int size = params.getPreviewSize().width * params.getPreviewSize().height;
size = size * ImageFormat.getBitsPerPixel(params.getPreviewFormat()) / 8;
mBuffer = new byte[size];
/* The buffer where the current frame will be coppied */
mFrame = new byte [size];
mCamera.addCallbackBuffer(mBuffer);
try {
setPreview();
} catch (IOException e) {
Log.e(TAG, "mCamera.setPreviewDisplay/setPreviewTexture fails: " + e);
}
/* Notify that the preview is about to be started and deliver preview size */
onPreviewStared(params.getPreviewSize().width, params.getPreviewSize().height);
/* Now we can start a preview */
mCamera.startPreview();
}
}
@@ -80,14 +105,17 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
public void surfaceCreated(SurfaceHolder holder) {
Log.i(TAG, "surfaceCreated");
mCamera = Camera.open();
mCamera.setPreviewCallback(new PreviewCallback() {
mCamera.setPreviewCallbackWithBuffer(new PreviewCallback() {
public void onPreviewFrame(byte[] data, Camera camera) {
synchronized (SampleViewBase.this) {
mFrame = data;
SampleViewBase.this.notify();
System.arraycopy(data, 0, mFrame, 0, data.length);
SampleViewBase.this.notify();
}
camera.addCallbackBuffer(mBuffer);
}
});
(new Thread(this)).start();
}
@@ -102,10 +130,27 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
mCamera = null;
}
}
onPreviewStopped();
}
/* The bitmap returned by this method shall be owned by the child and released in onPreviewStopped() */
protected abstract Bitmap processFrame(byte[] data);
/**
* This method is called when the preview process is beeing started. It is called before the first frame delivered and processFrame is called
* 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.
* @param previewWidth - the width of the preview frames that will be delivered via processFrame
* @param previewHeight - the height of the preview frames that will be delivered via processFrame
*/
protected abstract void onPreviewStared(int previewWidtd, int previewHeight);
/**
* This method is called when preview is stopped. When this method is called the preview stopped and all the processing of frames already completed.
* If the Bitmap object returned via processFrame is cached - it is a good time to recycle it.
* Any other resourcses used during the preview can be released.
*/
protected abstract void onPreviewStopped();
public void run() {
mThreadRun = true;
Log.i(TAG, "Starting processing thread");
@@ -127,7 +172,6 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
canvas.drawBitmap(bmp, (canvas.getWidth() - getFrameWidth()) / 2, (canvas.getHeight() - getFrameHeight()) / 2, null);
mHolder.unlockCanvasAndPost(canvas);
}
bmp.recycle();
}
}
}