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Merged the trunk r8345:8376

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This commit is contained in:
Andrey Kamaev
2012-05-18 13:18:37 +00:00
parent 70166820ea
commit e1c4fd9e1f
52 changed files with 1750 additions and 622 deletions
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2
samples/android/tutorial-1-addopencv/res/values/strings.xml
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@@ -1,4 +1,4 @@
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">Tutorial 1 Basic - 1. Add OpenCV</string>
<string name="app_name">Tutorial 1 (Basic) - Add OpenCV</string>
</resources>

27
samples/android/tutorial-1-addopencv/src/org/opencv/samples/tutorial1/Sample1Java.java
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@@ -1,6 +1,8 @@
package org.opencv.samples.tutorial1;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
@@ -19,6 +21,31 @@ public class Sample1Java extends Activity {
Log.i(TAG, "Instantiated new " + this.getClass());
}
@Override
protected void onPause() {
Log.i(TAG, "onPause");
super.onPause();
mView.releaseCamera();
}
@Override
protected void onResume() {
Log.i(TAG, "onResume");
super.onResume();
if( !mView.openCamera() ) {
AlertDialog ad = new AlertDialog.Builder(this).create();
ad.setCancelable(false); // This blocks the 'BACK' button
ad.setMessage("Fatal error: can't open camera!");
ad.setButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
finish();
}
});
ad.show();
}
}
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {

7
samples/android/tutorial-1-addopencv/src/org/opencv/samples/tutorial1/Sample1View.java
View File

@@ -2,16 +2,15 @@ package org.opencv.samples.tutorial1;
import org.opencv.android.Utils;
import org.opencv.core.Core;
import org.opencv.core.CvType;
import org.opencv.core.Mat;
import org.opencv.core.Point;
import org.opencv.core.Scalar;
import org.opencv.core.CvType;
import org.opencv.imgproc.Imgproc;
import android.content.Context;
import android.graphics.Bitmap;
import android.util.Log;
import android.view.SurfaceHolder;
class Sample1View extends SampleViewBase {
@@ -32,7 +31,7 @@ class Sample1View extends SampleViewBase {
}
@Override
protected void onPreviewStared(int previewWidth, int previewHeight) {
protected void onPreviewStarted(int previewWidth, int previewHeight) {
synchronized (this) {
// initialize Mats before usage
mYuv = new Mat(getFrameHeight() + getFrameHeight() / 2, getFrameWidth(), CvType.CV_8UC1);
@@ -94,7 +93,7 @@ class Sample1View extends SampleViewBase {
try {
Utils.matToBitmap(mRgba, bmp);
} catch(Exception e) {
Log.e("org.opencv.samples.puzzle15", "Utils.matToBitmap() throws an exception: " + e.getMessage());
Log.e("org.opencv.samples.tutorial1", "Utils.matToBitmap() throws an exception: " + e.getMessage());
bmp.recycle();
bmp = null;
}

152
samples/android/tutorial-1-addopencv/src/org/opencv/samples/tutorial1/SampleViewBase.java
View File

@@ -49,63 +49,14 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
mCamera.setPreviewDisplay(null);
}
public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) {
Log.i(TAG, "surfaceCreated");
if (mCamera != null) {
Camera.Parameters params = mCamera.getParameters();
List<Camera.Size> sizes = params.getSupportedPreviewSizes();
mFrameWidth = width;
mFrameHeight = height;
// selecting optimal camera preview size
{
int minDiff = Integer.MAX_VALUE;
for (Camera.Size size : sizes) {
if (Math.abs(size.height - height) < minDiff) {
mFrameWidth = size.width;
mFrameHeight = size.height;
minDiff = Math.abs(size.height - height);
}
}
}
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);
/* 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();
}
}
public void surfaceCreated(SurfaceHolder holder) {
Log.i(TAG, "surfaceCreated");
public boolean openCamera() {
Log.i(TAG, "openCamera");
releaseCamera();
mCamera = Camera.open();
if(mCamera == null) {
Log.e(TAG, "Can't open camera!");
return false;
}
mCamera.setPreviewCallbackWithBuffer(new PreviewCallback() {
public void onPreviewFrame(byte[] data, Camera camera) {
@@ -116,15 +67,14 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
camera.addCallbackBuffer(mBuffer);
}
});
(new Thread(this)).start();
return true;
}
public void surfaceDestroyed(SurfaceHolder holder) {
Log.i(TAG, "surfaceDestroyed");
public void releaseCamera() {
Log.i(TAG, "releaseCamera");
mThreadRun = false;
if (mCamera != null) {
synchronized (this) {
synchronized (this) {
if (mCamera != null) {
mCamera.stopPreview();
mCamera.setPreviewCallback(null);
mCamera.release();
@@ -133,22 +83,92 @@ public abstract class SampleViewBase extends SurfaceView implements SurfaceHolde
}
onPreviewStopped();
}
public void setupCamera(int width, int height) {
Log.i(TAG, "setupCamera");
synchronized (this) {
if (mCamera != null) {
Camera.Parameters params = mCamera.getParameters();
List<Camera.Size> sizes = params.getSupportedPreviewSizes();
mFrameWidth = width;
mFrameHeight = height;
// selecting optimal camera preview size
{
int minDiff = Integer.MAX_VALUE;
for (Camera.Size size : sizes) {
if (Math.abs(size.height - height) < minDiff) {
mFrameWidth = size.width;
mFrameHeight = size.height;
minDiff = Math.abs(size.height - height);
}
}
}
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);
/* 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 copied */
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 */
onPreviewStarted(params.getPreviewSize().width, params.getPreviewSize().height);
/* Now we can start a preview */
mCamera.startPreview();
}
}
}
public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) {
Log.i(TAG, "surfaceChanged");
setupCamera(width, height);
}
public void surfaceCreated(SurfaceHolder holder) {
Log.i(TAG, "surfaceCreated");
(new Thread(this)).start();
}
public void surfaceDestroyed(SurfaceHolder holder) {
Log.i(TAG, "surfaceDestroyed");
releaseCamera();
}
/* 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
* This method is called when the preview process is being 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);
protected abstract void onPreviewStarted(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.
* Any other resources used during the preview can be released.
*/
protected abstract void onPreviewStopped();