Compare commits
| Author | SHA1 | Date | |
|---|---|---|---|
 wolzto94552
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c60a14b6ac | ||
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wolzto94552
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4381ae78f8 | ||
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wolzto94552
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81e04e370a | ||
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wolzto94552
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b94a1d98b7 | ||
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wolzto94552
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7c8610facb | ||
 unknown
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90a2aad491 |
+1
-17
@@ -36,21 +36,5 @@ dependencies {
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testImplementation 'junit:junit:4.13.2'
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androidTestImplementation 'androidx.test.ext:junit:1.1.5'
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androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
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// OpenCV (from: https://github.com/QuickBirdEng/opencv-android)
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def opencv_version = "4.5.3.0"
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implementation "com.quickbirdstudios:opencv:${opencv_version}"
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implementation "androidx.lifecycle:lifecycle-extensions:2.0.0"
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// Required for CameraX
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def camerax_version = "1.2.2"
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implementation "androidx.camera:camera-core:${camerax_version}"
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implementation "androidx.camera:camera-camera2:${camerax_version}"
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implementation "androidx.camera:camera-lifecycle:${camerax_version}"
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implementation "androidx.camera:camera-video:${camerax_version}"
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implementation "androidx.camera:camera-view:${camerax_version}"
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implementation "androidx.camera:camera-extensions:${camerax_version}"
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implementation 'com.jjoe64:graphview:4.2.2'
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}
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@@ -2,9 +2,12 @@
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools">
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<uses-feature android:name="android.hardware.camera"/>
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<uses-permission android:name="android.permission.RECORD_AUDIO"/>
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<uses-permission android:name="android.permission.CAMERA"/>
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<uses-permission android:name="android.permission.RECORD_AUDIO" />
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<!--<uses-permission android:name="android.permission.BLUETOOTH"/>-->
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<!--<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>-->
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<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
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<uses-permission android:name="android.permission.INTERNET" />
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<application
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android:allowBackup="true"
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@@ -24,7 +27,6 @@
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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<service android:name=".Detection.DetectorService"/>
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</application>
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</manifest>
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@@ -1,74 +0,0 @@
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package com.example.ueberwachungssystem.Detection;
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import android.content.Context;
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import android.media.MediaPlayer;
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import android.media.MediaRecorder;
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import android.widget.Toast;
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import java.io.File;
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import java.io.IOException;
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import java.time.LocalDateTime;
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import java.time.format.DateTimeFormatter;
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public class AudioRecorder {
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private final Context context;
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private MediaRecorder mediaRecorder = null;
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private boolean isRecording = false;
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private File outputDir; // Default: in app files directory
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public AudioRecorder (Context context) {
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this.context = context;
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this.outputDir = context.getFilesDir();
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}
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public void startRecording() {
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// Handle logic
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if (outputDir == null)
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return;
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if (isRecording)
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return;
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isRecording = true;
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// Setup Audio Recorder for output Format: 3GP
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mediaRecorder = new MediaRecorder();
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mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
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mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
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mediaRecorder.setOutputFile(outputDir + "/" + generateFileName() + ".3gp");
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mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
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try {
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mediaRecorder.prepare();
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} catch (IOException e) {
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e.printStackTrace();
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}
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mediaRecorder.start();
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}
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public void stopRecording() {
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if (mediaRecorder != null) {
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mediaRecorder.stop();
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mediaRecorder.reset();
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mediaRecorder.release();
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mediaRecorder = null;
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isRecording = false;
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Toast.makeText(context, "audio recording saved", Toast.LENGTH_SHORT).show();
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}
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}
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public boolean isRecording(){
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return isRecording;
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}
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public void setOutputDir(File outputDir) {
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this.outputDir = outputDir;
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}
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private String generateFileName(){
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// Get the current timestamp
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LocalDateTime currentTime = LocalDateTime.now();
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// Define the format for the timestamp
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DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyyMMdd_HHmmss");
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// Return the timestamp as a string
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return currentTime.format(formatter);
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}
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}
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@@ -1,76 +0,0 @@
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package com.example.ueberwachungssystem.Detection;
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import android.os.CountDownTimer;
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import androidx.annotation.NonNull;
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import androidx.camera.core.ExperimentalGetImage;
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abstract public class Detector {
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private OnDetectionListener listener;
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private boolean isDetecting = false;
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private boolean extendViolation = false;
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// Countdown parameters
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private final int COUNTDOWN_TIME = 10000; // milliseconds
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private final int COUNTDOWN_POLLING_TIME = 100; // milliseconds
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/** Constructor - takes context of current activity */
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public Detector() {}
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/** On Detection Listener - runs when violation is reported */
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public interface OnDetectionListener {
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void onDetection(@NonNull DetectionReport detectionReport);
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}
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public void setOnDetectionListener(@NonNull OnDetectionListener listener) {
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this.listener = listener;
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}
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/** Triggers onDetectionListener - call this to trigger violation/alarm */
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public void reportViolation(String detectionType, float amplitude) {
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if (listener != null) {
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if (!isDetecting) {
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isDetecting = true;
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DetectionReport detectionReport = new DetectionReport(true, detectionType, amplitude);
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listener.onDetection(detectionReport);
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startDetectionTimer(detectionType, amplitude);
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} else {
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extendViolation = true;
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}
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} else {
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isDetecting = false;
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extendViolation = false;
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}
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}
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private void startDetectionTimer(String detectionType, float amplitude) {
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isDetecting = true;
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new CountDownTimer((long) COUNTDOWN_TIME, COUNTDOWN_POLLING_TIME) {
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@Override
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public void onTick(long millisUntilFinished) {
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if (extendViolation) {
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extendViolation = false;
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startDetectionTimer(detectionType, amplitude);
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this.cancel();
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}
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}
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@Override
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public void onFinish() {
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isDetecting = false;
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DetectionReport detectionReport = new DetectionReport(false, detectionType, amplitude);
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listener.onDetection(detectionReport);
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}
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}.start();
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}
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public void extendViolation(){
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this.extendViolation = true;
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}
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/** Starts Detection (abstract method: needs to be overridden in child class) */
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public abstract void startDetection();
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/** Stops Detection (abstract method: needs to be overridden in child class) */
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public abstract void stopDetection();
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}
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@@ -1,160 +0,0 @@
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package com.example.ueberwachungssystem.Detection;
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import android.content.Intent;
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import android.os.Binder;
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import android.os.IBinder;
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import android.widget.ImageView;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.camera.core.ExperimentalGetImage;
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import androidx.lifecycle.LifecycleService;
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import java.io.File;
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@ExperimentalGetImage
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public class DetectorService extends LifecycleService {
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public ServiceBinder serviceBinder = new ServiceBinder();
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private DetectorService.OnDetectionListener listener;
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private boolean isServiceRunning = false;
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VideoDetector videoDetector = null;
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AudioRecorder audioRecorder = null;
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@Override
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public int onStartCommand(Intent intent, int flags, int startId) {
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if (isServiceRunning)
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return START_NOT_STICKY;
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// Setup Service classes:
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videoDetector = new VideoDetector(this);
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videoDetector.setOnDetectionListener(new Detector.OnDetectionListener() {
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@Override
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public void onDetection(@NonNull DetectionReport detectionReport) {
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passToServiceListener(detectionReport);
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}
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});
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audioRecorder = new AudioRecorder(this);
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isServiceRunning = true;
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return super.onStartCommand(intent, flags, startId);
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}
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@Override
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public void onDestroy() {
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super.onDestroy();
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isServiceRunning = false;
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}
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/** Service methods */
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public class ServiceBinder extends Binder {
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public DetectorService getBoundService() {
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// Return an instance of the TestService
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return DetectorService.this;
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}
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}
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@Nullable
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@Override
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public IBinder onBind(Intent intent) {
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super.onBind(intent);
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return serviceBinder;
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}
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/** Video Detection */
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public void startVideoDetection() {
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if(videoDetector != null)
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videoDetector.startDetection();
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}
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public void stopVideoDetection() {
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if(videoDetector != null)
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videoDetector.stopDetection();
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}
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public boolean isVideoDetectionRunning() {
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if(videoDetector != null)
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return videoDetector.isDetecting();
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return false;
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}
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public void debugVideoProcessing(ImageView input, ImageView output) {
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if(videoDetector != null)
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videoDetector.debugProcessing(input, output);
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}
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/** Audio Detection */
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public void startAudioDetection() {
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|
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}
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public void stopAudioDetection() {
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|
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}
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|
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/** Motion Detection */
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public void startMotionDetection() {
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|
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}
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public void stopMotionDetection() {
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}
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/** Video Recording */
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public void startVideoRecording() {
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if(videoDetector != null)
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videoDetector.startRecording();
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}
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public void stopVideoRecording() {
|
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if(videoDetector != null)
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videoDetector.stopRecording();
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}
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public boolean isVideoRecordingRunning() {
|
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if(videoDetector != null)
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return videoDetector.isRecording();
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return false;
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}
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public void setVideoRecordingDir(File outputDir) {
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if (videoDetector != null)
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videoDetector.setOutputDir(outputDir);
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}
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|
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/** Audio Recording */
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public void startAudioRecording() {
|
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if(audioRecorder != null)
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audioRecorder.startRecording();
|
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}
|
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public void stopAudioRecording() {
|
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if(audioRecorder != null)
|
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audioRecorder.stopRecording();
|
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}
|
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public boolean isAudioRecordingRunning() {
|
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if(videoDetector != null)
|
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return audioRecorder.isRecording();
|
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return false;
|
||||
}
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public void setAudioRecordingDir(File outputDir) {
|
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if (audioRecorder != null)
|
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audioRecorder.setOutputDir(outputDir);
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/** pass Detection Report to Service Detection Listener and trigger it */
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public void passToServiceListener(DetectionReport detectionReport) {
|
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if (listener != null) {
|
||||
listener.onDetection(detectionReport);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/** On Detection Listener - runs when violation is reported */
|
||||
public interface OnDetectionListener {
|
||||
void onDetection(@NonNull DetectionReport detectionReport);
|
||||
}
|
||||
public void setOnDetectionListener(@NonNull DetectorService.OnDetectionListener listener) {
|
||||
this.listener = listener;
|
||||
}
|
||||
}
|
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@@ -1,109 +0,0 @@
|
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package com.example.ueberwachungssystem.Detection;
|
||||
|
||||
import android.graphics.Bitmap;
|
||||
import android.media.Image;
|
||||
import android.widget.ImageView;
|
||||
|
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import androidx.annotation.NonNull;
|
||||
import androidx.camera.core.ExperimentalGetImage;
|
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import androidx.camera.core.ImageProxy;
|
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|
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import org.opencv.android.Utils;
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import org.opencv.core.Core;
|
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import org.opencv.core.CvType;
|
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import org.opencv.core.Mat;
|
||||
import org.opencv.core.MatOfPoint;
|
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import org.opencv.core.Scalar;
|
||||
import org.opencv.core.Size;
|
||||
import org.opencv.imgproc.Imgproc;
|
||||
|
||||
import java.nio.ByteBuffer;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Collections;
|
||||
import java.util.List;
|
||||
|
||||
|
||||
@ExperimentalGetImage
|
||||
public class OpenCVHelper {
|
||||
|
||||
/** OpenCV helper methods **/
|
||||
public static Mat addGaussianBlur(Mat inputMat, Size kernelSize){
|
||||
Mat outputMat = new Mat();
|
||||
Imgproc.GaussianBlur(inputMat, outputMat, kernelSize, 0);
|
||||
return outputMat;
|
||||
}
|
||||
|
||||
public static Mat addBlur(Mat inputMat, Size kernelSize){
|
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Mat outputMat = new Mat();
|
||||
Imgproc.blur(inputMat, outputMat, kernelSize);
|
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return outputMat;
|
||||
}
|
||||
|
||||
public static Mat extractYChannel(@NonNull ImageProxy imgProxy) {
|
||||
Image img = imgProxy.getImage();
|
||||
|
||||
assert img != null;
|
||||
ByteBuffer yBuffer = img.getPlanes()[0].getBuffer();
|
||||
byte[] yData = new byte[yBuffer.remaining()];
|
||||
yBuffer.get(yData);
|
||||
|
||||
Mat yMat = new Mat(img.getHeight(), img.getWidth(), CvType.CV_8UC1);
|
||||
yMat.put(0, 0, yData);
|
||||
|
||||
return yMat;
|
||||
}
|
||||
|
||||
public static Mat thresholdPixels(Mat inputMat, Mat previousImage, int threshold){
|
||||
Mat diffImage = new Mat();
|
||||
Core.absdiff(inputMat, previousImage, diffImage);
|
||||
Mat binaryMat = new Mat();
|
||||
Imgproc.threshold(diffImage, binaryMat, threshold, 255, Imgproc.THRESH_BINARY);
|
||||
return binaryMat;
|
||||
}
|
||||
|
||||
|
||||
public static Mat thresholdContourArea(Mat inputMat, float areaThreshold){
|
||||
List<MatOfPoint> contours = new ArrayList<>();
|
||||
Mat hierarchy = new Mat();
|
||||
Imgproc.findContours(inputMat, contours, hierarchy, Imgproc.RETR_EXTERNAL, Imgproc.CHAIN_APPROX_SIMPLE);
|
||||
|
||||
Mat outputMat = new Mat(inputMat.size(), inputMat.type(), new Scalar(0));
|
||||
// Iterate over the contours and draw only the larger contours on the outputMat
|
||||
for (MatOfPoint contour : contours) {
|
||||
double contourArea = Imgproc.contourArea(contour);
|
||||
if (contourArea > areaThreshold) {
|
||||
Imgproc.drawContours(outputMat, Collections.singletonList(contour), 0, new Scalar(255), -1);
|
||||
}
|
||||
}
|
||||
// Apply the outputMat as a mask to the dilatedImage
|
||||
Mat maskedImage = new Mat();
|
||||
inputMat.copyTo(maskedImage, outputMat);
|
||||
return outputMat;
|
||||
}
|
||||
|
||||
public static Mat dilateBinaryMat(Mat inputMat, Size kernelSize){
|
||||
Mat dilatedMat = new Mat();
|
||||
Mat kernel = Imgproc.getStructuringElement(Imgproc.MORPH_ELLIPSE, kernelSize);
|
||||
Imgproc.dilate(inputMat, dilatedMat, kernel);
|
||||
return dilatedMat;
|
||||
}
|
||||
|
||||
public static int countNonZeroPixels(Mat inputImage) {
|
||||
if (inputImage != null)
|
||||
return Core.countNonZero(inputImage);
|
||||
else
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
public static void debugMat(Mat mat, ImageView imageView) {
|
||||
if (imageView == null || mat == null)
|
||||
return;
|
||||
|
||||
Bitmap bitmap = Bitmap.createBitmap(mat.cols(), mat.rows(), Bitmap.Config.ARGB_8888);
|
||||
Utils.matToBitmap(mat, bitmap);
|
||||
|
||||
// Display the bitmap in an ImageView
|
||||
imageView.setImageBitmap(bitmap);
|
||||
}
|
||||
}
|
||||
@@ -1,327 +0,0 @@
|
||||
package com.example.ueberwachungssystem.Detection;
|
||||
|
||||
import android.Manifest;
|
||||
import android.annotation.SuppressLint;
|
||||
import android.content.Context;
|
||||
import android.content.pm.PackageManager;
|
||||
import android.graphics.ImageFormat;
|
||||
import android.media.Image;
|
||||
import android.os.CountDownTimer;
|
||||
import android.util.Log;
|
||||
import android.view.Display;
|
||||
import android.view.Surface;
|
||||
import android.view.WindowManager;
|
||||
import android.widget.ImageView;
|
||||
import android.widget.Toast;
|
||||
|
||||
import androidx.annotation.NonNull;
|
||||
import androidx.annotation.Nullable;
|
||||
import androidx.camera.core.CameraSelector;
|
||||
import androidx.camera.core.ExperimentalGetImage;
|
||||
import androidx.camera.core.ImageAnalysis;
|
||||
import androidx.camera.core.ImageProxy;
|
||||
import androidx.camera.core.Preview;
|
||||
import androidx.camera.core.VideoCapture;
|
||||
import androidx.camera.lifecycle.ProcessCameraProvider;
|
||||
import androidx.camera.view.PreviewView;
|
||||
import androidx.core.app.ActivityCompat;
|
||||
import androidx.core.content.ContextCompat;
|
||||
import androidx.lifecycle.LifecycleOwner;
|
||||
|
||||
import com.google.common.util.concurrent.ListenableFuture;
|
||||
|
||||
import org.opencv.android.OpenCVLoader;
|
||||
import org.opencv.core.Mat;
|
||||
import org.opencv.core.Size;
|
||||
|
||||
import java.io.File;
|
||||
import java.time.LocalDateTime;
|
||||
import java.time.format.DateTimeFormatter;
|
||||
import java.util.concurrent.ExecutionException;
|
||||
|
||||
|
||||
/**
|
||||
* Video Detector inherits some methods from abstract Detector class (more info there)
|
||||
* USE FROM MAIN ACTIVITY:
|
||||
* VideoDetector vd = new VideoDetector(this);
|
||||
* */
|
||||
|
||||
|
||||
@ExperimentalGetImage
|
||||
public class VideoDetector extends Detector {
|
||||
// Calling Activity
|
||||
private final Context context;
|
||||
|
||||
// Camera Provider
|
||||
private ProcessCameraProvider cameraProvider;
|
||||
private ImageAnalysis imageAnalysis;
|
||||
private VideoCapture videoCapture;
|
||||
//private Preview preview;
|
||||
|
||||
// Logic
|
||||
private boolean isDetecting = false;
|
||||
private boolean isRecording = false;
|
||||
private boolean allowReportViolation = false;
|
||||
|
||||
// Image Processing
|
||||
private Mat previousImage = null;
|
||||
|
||||
// Debugging
|
||||
private ImageView inputImageView = null;
|
||||
private ImageView outputImageView = null;
|
||||
|
||||
// Recorder
|
||||
private File outputDir; // Default: in app files directory
|
||||
|
||||
|
||||
// Parameters
|
||||
private static final float ALARM_THRESHOLD = 0f; // Percent of pixels changed
|
||||
private static final float AREA_THRESHOLD = 10f;
|
||||
private static final int DILATE_ITERATIONS = 2;
|
||||
private static final float START_DELAY = 20000; // milliseconds
|
||||
private static final android.util.Size IMAGE_RES = new android.util.Size(640, 480);
|
||||
|
||||
|
||||
|
||||
/** Constructor */
|
||||
public VideoDetector(Context context) {
|
||||
super();
|
||||
this.context = context;
|
||||
this.imageAnalysis = setupImageAnalysis();
|
||||
this.videoCapture = setupVideoCapture();
|
||||
this.outputDir = context.getFilesDir();
|
||||
//this.preview = new Preview.Builder().build();
|
||||
}
|
||||
|
||||
/** Get States */
|
||||
public boolean isDetecting() {
|
||||
return isDetecting;
|
||||
}
|
||||
public boolean isRecording(){
|
||||
return isRecording;
|
||||
}
|
||||
|
||||
|
||||
/** Starts the Video Detection */
|
||||
@Override
|
||||
public void startDetection() {
|
||||
// Check States
|
||||
if (isDetecting)
|
||||
return;
|
||||
// Configure Image Analysis
|
||||
imageAnalysis = setupImageAnalysis();
|
||||
// Open CV startup check
|
||||
if (!OpenCVLoader.initDebug()) {
|
||||
Log.e("OpenCV", "Unable to load OpenCV!");
|
||||
return;
|
||||
} else
|
||||
Log.d("OpenCV", "OpenCV loaded Successfully!");
|
||||
// Get Process Camera Provider and start
|
||||
final ListenableFuture<ProcessCameraProvider> cameraProviderFuture = ProcessCameraProvider.getInstance(context);
|
||||
cameraProviderFuture.addListener(() -> {
|
||||
try {
|
||||
cameraProvider = cameraProviderFuture.get();
|
||||
isDetecting = true;
|
||||
bindCameraProvider();
|
||||
} catch (ExecutionException | InterruptedException e) {}
|
||||
}, ContextCompat.getMainExecutor(context));
|
||||
// Disable Violation Calling for Setup Time
|
||||
startViolationTimer(START_DELAY);
|
||||
}
|
||||
|
||||
/** Starts the Recorder */
|
||||
@SuppressLint("RestrictedApi")
|
||||
public void startRecording() {
|
||||
// Check States
|
||||
if (isRecording){
|
||||
return;
|
||||
}
|
||||
|
||||
videoCapture = setupVideoCapture();
|
||||
|
||||
final ListenableFuture<ProcessCameraProvider> cameraProviderFuture = ProcessCameraProvider.getInstance(context);
|
||||
cameraProviderFuture.addListener(() -> {
|
||||
try {
|
||||
cameraProvider = cameraProviderFuture.get();
|
||||
isRecording = true;
|
||||
bindCameraProvider();
|
||||
|
||||
File vidFile = new File(context.getFilesDir() + "/" + generateFileName() + ".mp4");
|
||||
if (ActivityCompat.checkSelfPermission(context, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
|
||||
return;
|
||||
}
|
||||
videoCapture.startRecording(
|
||||
new VideoCapture.OutputFileOptions.Builder(vidFile).build(),
|
||||
context.getMainExecutor(),
|
||||
new VideoCapture.OnVideoSavedCallback() {
|
||||
@Override
|
||||
public void onVideoSaved(@NonNull VideoCapture.OutputFileResults outputFileResults) {
|
||||
isRecording = false;
|
||||
Toast.makeText(context, "video recording saved", Toast.LENGTH_SHORT).show();
|
||||
}
|
||||
@Override
|
||||
public void onError(int videoCaptureError, @NonNull String message, @Nullable Throwable cause) {
|
||||
isRecording = false;
|
||||
Toast.makeText(context, "video recording failed", Toast.LENGTH_SHORT).show();
|
||||
}
|
||||
}
|
||||
);
|
||||
} catch (ExecutionException | InterruptedException ignored) {}
|
||||
}, ContextCompat.getMainExecutor(context));
|
||||
}
|
||||
|
||||
/** Stops the Video Detection */
|
||||
@Override
|
||||
public void stopDetection() {
|
||||
if (!isDetecting || imageAnalysis == null)
|
||||
return;
|
||||
cameraProvider.unbind(imageAnalysis);
|
||||
isDetecting = false;
|
||||
allowReportViolation = false;
|
||||
}
|
||||
|
||||
/** Stops the Recording */
|
||||
@SuppressLint("RestrictedApi")
|
||||
public void stopRecording(){
|
||||
if(!isRecording)
|
||||
return;
|
||||
|
||||
videoCapture.stopRecording();
|
||||
cameraProvider.unbind(videoCapture);
|
||||
isRecording = false;
|
||||
}
|
||||
|
||||
/** Bind Camera Provider */
|
||||
private void bindCameraProvider() {
|
||||
// Specify which Camera to use
|
||||
CameraSelector cameraSelector = new CameraSelector.Builder().requireLensFacing(CameraSelector.LENS_FACING_BACK).build();
|
||||
cameraProvider.unbindAll();
|
||||
cameraProvider.bindToLifecycle((LifecycleOwner) context, cameraSelector, imageAnalysis, videoCapture);
|
||||
}
|
||||
|
||||
/** Setup Use Cases */
|
||||
private ImageAnalysis setupImageAnalysis() {
|
||||
// Configure and create Image Analysis
|
||||
ImageAnalysis.Builder builder = new ImageAnalysis.Builder();
|
||||
builder.setTargetResolution(IMAGE_RES);
|
||||
builder.setBackpressureStrategy(ImageAnalysis.STRATEGY_KEEP_ONLY_LATEST);
|
||||
builder.setOutputImageFormat(ImageAnalysis.OUTPUT_IMAGE_FORMAT_YUV_420_888);
|
||||
builder.setTargetRotation(Surface.ROTATION_90);
|
||||
ImageAnalysis imageAnalysis = builder.build();
|
||||
// Set Analyzer
|
||||
imageAnalysis.setAnalyzer(ContextCompat.getMainExecutor(context), imageProxy -> {
|
||||
if (imageProxy.getFormat() == ImageFormat.YUV_420_888) {
|
||||
Image image = imageProxy.getImage();
|
||||
assert image != null;
|
||||
|
||||
// Violation Handling
|
||||
Mat processed = processImage(imageProxy);
|
||||
|
||||
int n = OpenCVHelper.countNonZeroPixels(processed);
|
||||
int pixelCount = image.getWidth() * image.getHeight();
|
||||
float percentChanged = (float) n / pixelCount;
|
||||
|
||||
// Violation Condition
|
||||
if (percentChanged * 100 > ALARM_THRESHOLD) {
|
||||
if (allowReportViolation)
|
||||
reportViolation("Video", percentChanged);
|
||||
}
|
||||
}
|
||||
imageProxy.close();
|
||||
});
|
||||
return imageAnalysis;
|
||||
}
|
||||
|
||||
@SuppressLint("RestrictedApi")
|
||||
private VideoCapture setupVideoCapture() {
|
||||
int rotation = getDisplayRotation();
|
||||
return new VideoCapture.Builder()
|
||||
.setTargetRotation(rotation)
|
||||
.build();
|
||||
}
|
||||
|
||||
/** Process Image to be used for Motion Detection */
|
||||
private Mat processImage(ImageProxy imageProxy){
|
||||
if (imageProxy == null)
|
||||
return null;
|
||||
// Image Transformation
|
||||
Mat imageMat = OpenCVHelper.extractYChannel(imageProxy);
|
||||
// Show Input Image
|
||||
if (inputImageView != null)
|
||||
OpenCVHelper.debugMat(imageMat, inputImageView);
|
||||
// Preprocess Image
|
||||
Mat preprocessed = imageMat;
|
||||
preprocessed = OpenCVHelper.addGaussianBlur(preprocessed, new Size(21, 21));
|
||||
preprocessed = OpenCVHelper.addBlur(preprocessed, new Size(3, 3));
|
||||
// Set Previous Image
|
||||
if (previousImage == null) {
|
||||
previousImage = preprocessed;
|
||||
return null;
|
||||
}
|
||||
// Process Image
|
||||
Mat processed = preprocessed.clone();
|
||||
processed = OpenCVHelper.thresholdPixels(processed, previousImage, 25);
|
||||
|
||||
for(int i = 0; i < DILATE_ITERATIONS; i++)
|
||||
processed = OpenCVHelper.dilateBinaryMat(processed, new Size(3,3));
|
||||
|
||||
processed = OpenCVHelper.thresholdContourArea(processed, AREA_THRESHOLD);
|
||||
// Output
|
||||
previousImage = preprocessed.clone();
|
||||
// Show Output Image
|
||||
if (outputImageView != null)
|
||||
OpenCVHelper.debugMat(processed, outputImageView);
|
||||
return processed;
|
||||
}
|
||||
|
||||
|
||||
/** Debug input and result of processing */
|
||||
public void debugProcessing(@NonNull ImageView inputImageView, @NonNull ImageView outputImageView){
|
||||
this.inputImageView = inputImageView;
|
||||
this.outputImageView = outputImageView;
|
||||
}
|
||||
|
||||
/**
|
||||
private void setPreviewView(@NonNull PreviewView previewView) {
|
||||
// Create Preview
|
||||
if (this.preview != null)
|
||||
this.preview.setSurfaceProvider(previewView.getSurfaceProvider());
|
||||
}
|
||||
*/
|
||||
|
||||
|
||||
/** Generate File Name */
|
||||
private String generateFileName(){
|
||||
// Get the current timestamp
|
||||
LocalDateTime currentTime = LocalDateTime.now();
|
||||
// Define the format for the timestamp
|
||||
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyyMMdd_HHmmss");
|
||||
// Return the timestamp as a string
|
||||
return currentTime.format(formatter);
|
||||
}
|
||||
|
||||
|
||||
/** Get current Display Rotation */
|
||||
private int getDisplayRotation() {
|
||||
WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
|
||||
Display display = windowManager.getDefaultDisplay();
|
||||
return display.getRotation();
|
||||
}
|
||||
|
||||
/** Start delay until Violation Report is allowed */
|
||||
private void startViolationTimer(float setupTime) {
|
||||
new CountDownTimer((long) (START_DELAY), 100) {
|
||||
@Override
|
||||
public void onTick(long millisUntilFinished) {
|
||||
}
|
||||
@Override
|
||||
public void onFinish() {
|
||||
allowReportViolation = true;
|
||||
}
|
||||
}.start();
|
||||
}
|
||||
|
||||
public void setOutputDir(File outputDir) {
|
||||
this.outputDir = outputDir;
|
||||
}
|
||||
}
|
||||
+6
-8
@@ -1,4 +1,4 @@
|
||||
package com.example.ueberwachungssystem.Detection;
|
||||
package com.example.ueberwachungssystem.Detector;
|
||||
|
||||
import android.util.Log;
|
||||
|
||||
@@ -9,26 +9,24 @@ public class DetectionReport {
|
||||
public String timeStamp;
|
||||
public String detectionType;
|
||||
public float detectedValue;
|
||||
public boolean detectionState;
|
||||
public String detectorID;
|
||||
|
||||
public DetectionReport(boolean detectionState, String detectionType, float detectedAmplitude) {
|
||||
public DetectionReport(String detectorID, String detectionType, float detectedAmplitude) {
|
||||
this.timeStamp = String.valueOf(Calendar.getInstance().getTime());
|
||||
this.detectionType = detectionType;
|
||||
this.detectedValue = detectedAmplitude;
|
||||
this.detectionState = detectionState;
|
||||
|
||||
//this.detectorID = detectorID;
|
||||
this.detectorID = detectorID;
|
||||
}
|
||||
|
||||
|
||||
/** Get Detection Report in String format */
|
||||
public String toString() {
|
||||
String state = "State: " + "[" + this.detectionState + "]";
|
||||
String time = "Time: " + "[" + this.timeStamp + "]";
|
||||
String type = "Type: " + "[" + this.detectionType + "]";
|
||||
String value = "Value: " + "[" + this.detectedValue + "]";
|
||||
String id = "ID: " + "[" + this.detectorID + "]";
|
||||
|
||||
return String.join("\t", state, time, type, value);
|
||||
return String.join("\t", time, type, value, id);
|
||||
}
|
||||
|
||||
/** Debug Report */
|
||||
@@ -0,0 +1,39 @@
|
||||
package com.example.ueberwachungssystem.Detector;
|
||||
|
||||
import android.content.Context;
|
||||
import androidx.annotation.NonNull;
|
||||
|
||||
|
||||
abstract public class Detector {
|
||||
private OnDetectionListener listener;
|
||||
|
||||
/** Constructor - takes context of current activity */
|
||||
public Detector(Context context) {};
|
||||
|
||||
|
||||
/** On Detection Listener - runs when violation is reported */
|
||||
public interface OnDetectionListener {
|
||||
void onDetection(@NonNull DetectionReport detectionReport);
|
||||
}
|
||||
public void setOnDetectionListener(@NonNull OnDetectionListener listener) {
|
||||
this.listener = listener;
|
||||
}
|
||||
|
||||
|
||||
/** Triggers onDetectionListener - call this to trigger violation/alarm */
|
||||
public void reportViolation(String detectorID, String detectionType, float amplitude) {
|
||||
if (listener != null) {
|
||||
DetectionReport detectionReport = new DetectionReport(detectorID, detectionType, amplitude);
|
||||
listener.onDetection(detectionReport);
|
||||
} else {
|
||||
throw new IllegalStateException("No listener set for violation reporting");
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/** Starts Detection (abstract method: needs to be overridden in child class) */
|
||||
public abstract void startDetection();
|
||||
|
||||
/** Stops Detection (abstract method: needs to be overridden in child class) */
|
||||
public abstract void stopDetection();
|
||||
}
|
||||
@@ -0,0 +1,421 @@
|
||||
package com.example.ueberwachungssystem.Detector;
|
||||
|
||||
import static java.lang.Math.*;
|
||||
|
||||
import android.Manifest;
|
||||
import android.app.Activity;
|
||||
import android.content.Context;
|
||||
import android.content.pm.PackageManager;
|
||||
import android.media.AudioFormat;
|
||||
import android.media.AudioRecord;
|
||||
import android.media.MediaRecorder;
|
||||
import android.os.AsyncTask;
|
||||
import android.util.Log;
|
||||
|
||||
import androidx.core.app.ActivityCompat;
|
||||
import androidx.core.content.ContextCompat;
|
||||
|
||||
import com.example.ueberwachungssystem.Detector.Signalverarbeitung.Complex;
|
||||
import com.example.ueberwachungssystem.Detector.Signalverarbeitung.FFT;
|
||||
import com.example.ueberwachungssystem.Detector.logger.Logger;
|
||||
import com.jjoe64.graphview.GraphView;
|
||||
import com.jjoe64.graphview.series.DataPoint;
|
||||
import com.jjoe64.graphview.series.LineGraphSeries;
|
||||
|
||||
public class MicrophoneDetector extends Detector {
|
||||
/**
|
||||
* Constructor - takes context of current activity
|
||||
*
|
||||
* @param context
|
||||
*/
|
||||
|
||||
private static final int RECHTEANFORDERUNG_MIKROFON = 1;
|
||||
|
||||
private AufnahmeTask aufnahmeTask;
|
||||
public boolean armed = false;
|
||||
public int Schwellwert_Alarm = 100;
|
||||
private Activity MainActivityForClass;
|
||||
|
||||
public MicrophoneDetector(Context context) {
|
||||
super(context);
|
||||
MainActivityForClass = (Activity) context;
|
||||
|
||||
if (!istZugriffAufMikrofonErlaubt()) {
|
||||
zugriffAufMikrofonAnfordern();
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void startDetection() {
|
||||
|
||||
if (!istZugriffAufMikrofonErlaubt()) {
|
||||
zugriffAufMikrofonAnfordern();
|
||||
}
|
||||
if (istZugriffAufMikrofonErlaubt()) {
|
||||
aufnahmeTask = new AufnahmeTask();
|
||||
aufnahmeTask.execute();
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void stopDetection() {
|
||||
if (aufnahmeTask != null) {
|
||||
aufnahmeTask.cancel(true);
|
||||
}
|
||||
}
|
||||
|
||||
private boolean istZugriffAufMikrofonErlaubt() {
|
||||
if (ContextCompat.checkSelfPermission(MainActivityForClass, android.Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
|
||||
Log.d("0","Zugriff auf Mikrofon ist verboten.");
|
||||
return false;
|
||||
} else {
|
||||
Log.d("0","Zugriff auf Mikrofon ist erlaubt.");
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
private void zugriffAufMikrofonAnfordern() {
|
||||
ActivityCompat.requestPermissions(MainActivityForClass, new String[]{Manifest.permission.RECORD_AUDIO}, RECHTEANFORDERUNG_MIKROFON);
|
||||
}
|
||||
|
||||
class AufnahmeTask extends AsyncTask<Long, Verarbeitungsergebnis, Void> {
|
||||
private AudioRecord recorder;
|
||||
private final int sampleRateInHz = 44100;
|
||||
private final int channelConfig = AudioFormat.CHANNEL_IN_MONO;
|
||||
private final int audioFormat = AudioFormat.ENCODING_PCM_16BIT;
|
||||
private int minPufferGroesseInBytes;
|
||||
private int pufferGroesseInBytes;
|
||||
private RingPuffer ringPuffer = new RingPuffer(10);
|
||||
private float kalibierWert;
|
||||
private DetectionReport detectionReport;
|
||||
|
||||
AufnahmeTask() {
|
||||
minPufferGroesseInBytes = AudioRecord.getMinBufferSize(sampleRateInHz, channelConfig, audioFormat);
|
||||
pufferGroesseInBytes = minPufferGroesseInBytes * 2;
|
||||
if (ActivityCompat.checkSelfPermission(MainActivityForClass, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
|
||||
// TODO: Consider calling
|
||||
// ActivityCompat#requestPermissions
|
||||
// here to request the missing permissions, and then overriding
|
||||
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
|
||||
// int[] grantResults)
|
||||
// to handle the case where the user grants the permission. See the documentation
|
||||
// for ActivityCompat#requestPermissions for more details.
|
||||
ActivityCompat.requestPermissions(MainActivityForClass, new String[]{Manifest.permission.RECORD_AUDIO}, RECHTEANFORDERUNG_MIKROFON);
|
||||
}
|
||||
|
||||
recorder = new AudioRecord(MediaRecorder.AudioSource.MIC, sampleRateInHz, channelConfig, audioFormat, pufferGroesseInBytes);
|
||||
|
||||
Log.d("0","Puffergroeße: "+ minPufferGroesseInBytes + " " + pufferGroesseInBytes);
|
||||
Log.d("0","Recorder (SR, CH): "+ recorder.getSampleRate() + " " + recorder.getChannelCount());
|
||||
|
||||
int anzahlBytesProAbtastwert;
|
||||
String s;
|
||||
switch (recorder.getAudioFormat()) {
|
||||
case AudioFormat.ENCODING_PCM_8BIT:
|
||||
s = "8 Bit PCM ";
|
||||
anzahlBytesProAbtastwert = 1;
|
||||
break;
|
||||
case AudioFormat.ENCODING_PCM_16BIT:
|
||||
s = "16 Bit PCM";
|
||||
anzahlBytesProAbtastwert = 2;
|
||||
break;
|
||||
case AudioFormat.ENCODING_PCM_FLOAT:
|
||||
s = "Float PCM";
|
||||
anzahlBytesProAbtastwert = 4;
|
||||
break;
|
||||
default:
|
||||
throw new IllegalArgumentException();
|
||||
}
|
||||
|
||||
switch (recorder.getChannelConfiguration()) {
|
||||
case AudioFormat.CHANNEL_IN_MONO:
|
||||
s = "Mono";
|
||||
break;
|
||||
case AudioFormat.CHANNEL_IN_STEREO:
|
||||
s = "Stereo";
|
||||
anzahlBytesProAbtastwert *= 2;
|
||||
break;
|
||||
case AudioFormat.CHANNEL_INVALID:
|
||||
s = "ungültig";
|
||||
break;
|
||||
default:
|
||||
throw new IllegalArgumentException();
|
||||
}
|
||||
|
||||
Log.d("0","Konfiguration: "+ s);
|
||||
|
||||
int pufferGroesseInAnzahlAbtastwerten = pufferGroesseInBytes / anzahlBytesProAbtastwert;
|
||||
int pufferGroesseInMillisekunden = 1000 * pufferGroesseInAnzahlAbtastwerten / recorder.getSampleRate();
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
protected Void doInBackground(Long... params) {
|
||||
recorder.startRecording();
|
||||
short[] puffer = new short[pufferGroesseInBytes / 2];
|
||||
long lastTime = System.currentTimeMillis();
|
||||
float verarbeitungsrate = 0;
|
||||
final int maxZaehlerZeitMessung = 10;
|
||||
int zaehlerZeitMessung = 0;
|
||||
int anzahlVerarbeitet = 0;
|
||||
GleitenderMittelwert gleitenderMittelwert = new GleitenderMittelwert(0.3f);
|
||||
|
||||
//Kalibrierung
|
||||
try {
|
||||
Thread.sleep(3000); // Time to lay down the phone
|
||||
} catch (InterruptedException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
int i = 0;
|
||||
for (i = 0; i < 20; i++) {
|
||||
int n = recorder.read(puffer, 0, puffer.length);
|
||||
Verarbeitungsergebnis kalibrierErgebnis = verarbeiten(puffer, n);
|
||||
kalibierWert += kalibrierErgebnis.maxAmp;
|
||||
try {
|
||||
Thread.sleep(50);
|
||||
} catch (InterruptedException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
kalibierWert = kalibierWert/i;
|
||||
|
||||
// __Part of FFT__
|
||||
// Complex[] zeitSignal = new Complex[puffer.length];
|
||||
// for (int j = 0; j < puffer.length; j++) {
|
||||
// zeitSignal[j] = new Complex(puffer[j], 0);
|
||||
// }
|
||||
// Complex[] spektrum = FFT.fft(zeitSignal);
|
||||
// double[] spektrum = calculateFFT(puffer);
|
||||
// DataPoint AddPoint;
|
||||
// LineGraphSeries<DataPoint> series = new LineGraphSeries<DataPoint>(new DataPoint[]{});
|
||||
// for (i = 0; i < spektrum.length; i++) {
|
||||
// AddPoint = new DataPoint(i, spektrum[i]);
|
||||
// series.appendData(AddPoint, true, spektrum.length);
|
||||
// }
|
||||
// graph.addSeries(series);
|
||||
|
||||
for (; ; ) {
|
||||
if (aufnahmeTask.isCancelled()) {
|
||||
break;
|
||||
} else {
|
||||
int n = recorder.read(puffer, 0, puffer.length);
|
||||
Verarbeitungsergebnis ergebnis = verarbeiten(puffer, n);
|
||||
anzahlVerarbeitet += n;
|
||||
// __Part of FFT__
|
||||
// spektrum = calculateFFT(puffer);
|
||||
// LineGraphSeries<DataPoint> newseries = new LineGraphSeries<DataPoint>(new DataPoint[]{});
|
||||
// for (i = 0; i < spektrum.length; i++) {
|
||||
// AddPoint = new DataPoint(i, spektrum[i]);
|
||||
// newseries.appendData(AddPoint, true, spektrum.length);
|
||||
// }
|
||||
|
||||
zaehlerZeitMessung++;
|
||||
if (zaehlerZeitMessung == maxZaehlerZeitMessung) {
|
||||
long time = System.currentTimeMillis();
|
||||
long deltaTime = time - lastTime;
|
||||
verarbeitungsrate = 1000.0f * anzahlVerarbeitet / deltaTime;
|
||||
verarbeitungsrate = gleitenderMittelwert.mittel(verarbeitungsrate);
|
||||
zaehlerZeitMessung = 0;
|
||||
anzahlVerarbeitet = 0;
|
||||
lastTime = time;
|
||||
}
|
||||
|
||||
|
||||
ergebnis.verarbeitungsrate = (int) verarbeitungsrate;
|
||||
publishProgress(ergebnis);
|
||||
|
||||
try {
|
||||
Thread.sleep(10);
|
||||
} catch (InterruptedException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
}
|
||||
recorder.release();
|
||||
return null;
|
||||
}
|
||||
|
||||
private Verarbeitungsergebnis verarbeiten(short[] daten, int n) {
|
||||
String status;
|
||||
short maxAmp = -1;
|
||||
if (n == AudioRecord.ERROR_INVALID_OPERATION) {
|
||||
status = "ERROR_INVALID_OPERATION";
|
||||
} else if (n == AudioRecord.ERROR_BAD_VALUE) {
|
||||
status = "ERROR_BAD_VALUE";
|
||||
} else {
|
||||
status = "OK";
|
||||
short max = 0;
|
||||
for (int i = 0; i < n; i++) {
|
||||
if (daten[i] > max) {
|
||||
max = daten[i];
|
||||
}
|
||||
}
|
||||
|
||||
ringPuffer.hinzufuegen(max);
|
||||
maxAmp = ringPuffer.maximum();
|
||||
if (maxAmp <= Schwellwert_Alarm+kalibierWert) {
|
||||
armed = true;
|
||||
}
|
||||
}
|
||||
|
||||
return new Verarbeitungsergebnis(status, maxAmp, 0);
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void onProgressUpdate(Verarbeitungsergebnis... progress) {
|
||||
super.onProgressUpdate(progress);
|
||||
float maxAmpPrint = round(20*log10(abs(progress[0].maxAmp/1.0)));
|
||||
float kalibierWertPrint = round(20*log10(abs(kalibierWert)));
|
||||
Log.d("0","VR, Max, Kal:" + progress[0].verarbeitungsrate + ", " + maxAmpPrint
|
||||
+ " dB, " + kalibierWertPrint + " dB");
|
||||
|
||||
if (progress[0].maxAmp >= Schwellwert_Alarm+kalibierWert && armed == true) {
|
||||
armed = false;
|
||||
detectionReport = new DetectionReport("Mic1", "Audio", maxAmpPrint);
|
||||
reportViolation("Mic1", "Audio", maxAmpPrint);
|
||||
Log.d("1",detectionReport.toString());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private double[] calculateFFT(short[] zeitsignal)
|
||||
{
|
||||
byte signal[] = new byte[zeitsignal.length];
|
||||
// loops through all the values of a Short
|
||||
for (int i = 0; i < zeitsignal.length-1; i++) {
|
||||
signal[i] = (byte) (zeitsignal[i]);
|
||||
signal[i+1] = (byte) (zeitsignal[i] >> 8);
|
||||
}
|
||||
|
||||
final int mNumberOfFFTPoints =1024;
|
||||
double mMaxFFTSample;
|
||||
|
||||
double temp;
|
||||
Complex[] y;
|
||||
Complex[] complexSignal = new Complex[mNumberOfFFTPoints];
|
||||
double[] absSignal = new double[mNumberOfFFTPoints/2];
|
||||
|
||||
for(int i = 0; i < mNumberOfFFTPoints; i++){
|
||||
temp = (double)((signal[2*i] & 0xFF) | (signal[2*i+1] << 8)) / 32768.0F;
|
||||
complexSignal[i] = new Complex(temp,0.0);
|
||||
}
|
||||
|
||||
y = FFT.fft(complexSignal);
|
||||
|
||||
mMaxFFTSample = 0.0;
|
||||
for(int i = 0; i < (mNumberOfFFTPoints/2); i++)
|
||||
{
|
||||
absSignal[i] = y[i].abs();
|
||||
// absSignal[i] = Math.sqrt(Math.pow(y[i].re(), 2) + Math.pow(y[i].im(), 2));
|
||||
// if(absSignal[i] > mMaxFFTSample)
|
||||
// {
|
||||
// mMaxFFTSample = absSignal[i];
|
||||
// }
|
||||
}
|
||||
|
||||
return absSignal;
|
||||
|
||||
}
|
||||
|
||||
class Verarbeitungsergebnis {
|
||||
String status;
|
||||
short maxAmp;
|
||||
int verarbeitungsrate;
|
||||
Verarbeitungsergebnis(String status, short maxAmp, int verarbeitungsrate) {
|
||||
this.status = status;
|
||||
this.maxAmp = maxAmp;
|
||||
this.verarbeitungsrate = verarbeitungsrate;
|
||||
}
|
||||
}
|
||||
|
||||
class RingPuffer {
|
||||
private short[] puffer;
|
||||
private final int laenge;
|
||||
private int anzahlEnthaltenerDaten;
|
||||
private int position;
|
||||
|
||||
public RingPuffer(int n) {
|
||||
laenge = n;
|
||||
anzahlEnthaltenerDaten = 0;
|
||||
position = 0;
|
||||
puffer = new short[laenge];
|
||||
}
|
||||
|
||||
public void hinzufuegen(short wert) {
|
||||
puffer[position] = wert;
|
||||
position++;
|
||||
if (position >= laenge) {
|
||||
position = 0;
|
||||
}
|
||||
if (anzahlEnthaltenerDaten < laenge) {
|
||||
anzahlEnthaltenerDaten++;
|
||||
}
|
||||
}
|
||||
|
||||
public void hinzufuegen(short[] daten) {
|
||||
for (short d : daten) {
|
||||
puffer[position] = d;
|
||||
position++;
|
||||
if (position >= laenge) {
|
||||
position = 0;
|
||||
}
|
||||
}
|
||||
if (anzahlEnthaltenerDaten < laenge) {
|
||||
anzahlEnthaltenerDaten += daten.length;
|
||||
if (anzahlEnthaltenerDaten >= laenge) {
|
||||
anzahlEnthaltenerDaten = laenge;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public short maximum() {
|
||||
short max = 0;
|
||||
for (int i = 0; i < anzahlEnthaltenerDaten; i++) {
|
||||
if (puffer[i] > max) {
|
||||
max = puffer[i];
|
||||
}
|
||||
}
|
||||
return max;
|
||||
}
|
||||
|
||||
public float mittelwert() {
|
||||
float summe = 0;
|
||||
for (int i = 0; i < anzahlEnthaltenerDaten; i++) {
|
||||
summe += puffer[i];
|
||||
}
|
||||
return summe / anzahlEnthaltenerDaten;
|
||||
}
|
||||
}
|
||||
|
||||
class GleitenderMittelwert {
|
||||
private final float wichtungNeuerWert;
|
||||
private final float wichtungAlterWert;
|
||||
private float mittelwert = 0;
|
||||
private boolean istMittelwertGesetzt = false;
|
||||
|
||||
GleitenderMittelwert(float wichtungNeuerWert) {
|
||||
this.wichtungNeuerWert = wichtungNeuerWert;
|
||||
this.wichtungAlterWert = 1 - this.wichtungNeuerWert;
|
||||
}
|
||||
|
||||
float MittelwertPuffer(short[] puffer) {
|
||||
|
||||
for (int i = 0; i < puffer.length; i++) {
|
||||
mittelwert = Math.abs(puffer[i]);
|
||||
}
|
||||
mittelwert = mittelwert/puffer.length;
|
||||
|
||||
return mittelwert;
|
||||
}
|
||||
|
||||
float mittel(float wert) {
|
||||
if (istMittelwertGesetzt) {
|
||||
mittelwert = wert * wichtungNeuerWert + mittelwert * wichtungAlterWert;
|
||||
} else {
|
||||
mittelwert = wert;
|
||||
istMittelwertGesetzt = true;
|
||||
}
|
||||
return mittelwert;
|
||||
}
|
||||
}
|
||||
}
|
||||
+148
@@ -0,0 +1,148 @@
|
||||
package com.example.ueberwachungssystem.Detector.Signalverarbeitung;
|
||||
|
||||
import java.util.Objects;
|
||||
|
||||
public class Complex {
|
||||
private final double re; // the real part
|
||||
private final double im; // the imaginary part
|
||||
|
||||
// create a new object with the given real and imaginary parts
|
||||
public Complex(double real, double imag) {
|
||||
re = real;
|
||||
im = imag;
|
||||
}
|
||||
|
||||
// return a string representation of the invoking com.example.ueberwachungssystem.Detector.Signalverarbeitung.Complex object
|
||||
public String toString() {
|
||||
if (im == 0) return re + "";
|
||||
if (re == 0) return im + "i";
|
||||
if (im < 0) return re + " - " + (-im) + "i";
|
||||
return re + " + " + im + "i";
|
||||
}
|
||||
|
||||
// return abs/modulus/magnitude
|
||||
public double abs() {
|
||||
return Math.hypot(re, im);
|
||||
}
|
||||
|
||||
// return angle/phase/argument, normalized to be between -pi and pi
|
||||
public double phase() {
|
||||
return Math.atan2(im, re);
|
||||
}
|
||||
|
||||
// return a new com.example.ueberwachungssystem.Detector.Signalverarbeitung.Complex object whose value is (this + b)
|
||||
public Complex plus(Complex b) {
|
||||
Complex a = this; // invoking object
|
||||
double real = a.re + b.re;
|
||||
double imag = a.im + b.im;
|
||||
return new Complex(real, imag);
|
||||
}
|
||||
|
||||
// return a new com.example.ueberwachungssystem.Detector.Signalverarbeitung.Complex object whose value is (this - b)
|
||||
public Complex minus(Complex b) {
|
||||
Complex a = this;
|
||||
double real = a.re - b.re;
|
||||
double imag = a.im - b.im;
|
||||
return new Complex(real, imag);
|
||||
}
|
||||
|
||||
// return a new com.example.ueberwachungssystem.Detector.Signalverarbeitung.Complex object whose value is (this * b)
|
||||
public Complex times(Complex b) {
|
||||
Complex a = this;
|
||||
double real = a.re * b.re - a.im * b.im;
|
||||
double imag = a.re * b.im + a.im * b.re;
|
||||
return new Complex(real, imag);
|
||||
}
|
||||
|
||||
// return a new object whose value is (this * alpha)
|
||||
public Complex scale(double alpha) {
|
||||
return new Complex(alpha * re, alpha * im);
|
||||
}
|
||||
|
||||
// return a new com.example.ueberwachungssystem.Detector.Signalverarbeitung.Complex object whose value is the conjugate of this
|
||||
public Complex conjugate() {
|
||||
return new Complex(re, -im);
|
||||
}
|
||||
|
||||
// return a new com.example.ueberwachungssystem.Detector.Signalverarbeitung.Complex object whose value is the reciprocal of this
|
||||
public Complex reciprocal() {
|
||||
double scale = re * re + im * im;
|
||||
return new Complex(re / scale, -im / scale);
|
||||
}
|
||||
|
||||
// return the real or imaginary part
|
||||
public double re() {
|
||||
return re;
|
||||
}
|
||||
|
||||
public double im() {
|
||||
return im;
|
||||
}
|
||||
|
||||
// return a / b
|
||||
public Complex divides(Complex b) {
|
||||
Complex a = this;
|
||||
return a.times(b.reciprocal());
|
||||
}
|
||||
|
||||
// return a new com.example.ueberwachungssystem.Detector.Signalverarbeitung.Complex object whose value is the complex exponential of this
|
||||
public Complex exp() {
|
||||
return new Complex(Math.exp(re) * Math.cos(im), Math.exp(re) * Math.sin(im));
|
||||
}
|
||||
|
||||
// return a new com.example.ueberwachungssystem.Detector.Signalverarbeitung.Complex object whose value is the complex sine of this
|
||||
public Complex sin() {
|
||||
return new Complex(Math.sin(re) * Math.cosh(im), Math.cos(re) * Math.sinh(im));
|
||||
}
|
||||
|
||||
// return a new com.example.ueberwachungssystem.Detector.Signalverarbeitung.Complex object whose value is the complex cosine of this
|
||||
public Complex cos() {
|
||||
return new Complex(Math.cos(re) * Math.cosh(im), -Math.sin(re) * Math.sinh(im));
|
||||
}
|
||||
|
||||
// return a new com.example.ueberwachungssystem.Detector.Signalverarbeitung.Complex object whose value is the complex tangent of this
|
||||
public Complex tan() {
|
||||
return sin().divides(cos());
|
||||
}
|
||||
|
||||
// a static version of plus
|
||||
public static Complex plus(Complex a, Complex b) {
|
||||
double real = a.re + b.re;
|
||||
double imag = a.im + b.im;
|
||||
Complex sum = new Complex(real, imag);
|
||||
return sum;
|
||||
}
|
||||
|
||||
// See Section 3.3.
|
||||
public boolean equals(Object x) {
|
||||
if (x == null) return false;
|
||||
if (this.getClass() != x.getClass()) return false;
|
||||
Complex that = (Complex) x;
|
||||
return (this.re == that.re) && (this.im == that.im);
|
||||
}
|
||||
|
||||
// See Section 3.3.
|
||||
public int hashCode() {
|
||||
return Objects.hash(re, im);
|
||||
}
|
||||
|
||||
// sample client for testing
|
||||
public static void main(String[] args) {
|
||||
Complex a = new Complex(5.0, 6.0);
|
||||
Complex b = new Complex(-3.0, 4.0);
|
||||
|
||||
System.out.println("a = " + a);
|
||||
System.out.println("b = " + b);
|
||||
System.out.println("Re(a) = " + a.re());
|
||||
System.out.println("Im(a) = " + a.im());
|
||||
System.out.println("b + a = " + b.plus(a));
|
||||
System.out.println("a - b = " + a.minus(b));
|
||||
System.out.println("a * b = " + a.times(b));
|
||||
System.out.println("b * a = " + b.times(a));
|
||||
System.out.println("a / b = " + a.divides(b));
|
||||
System.out.println("(a / b) * b = " + a.divides(b).times(b));
|
||||
System.out.println("conj(a) = " + a.conjugate());
|
||||
System.out.println("|a| = " + a.abs());
|
||||
System.out.println("tan(a) = " + a.tan());
|
||||
}
|
||||
}
|
||||
+246
@@ -0,0 +1,246 @@
|
||||
package com.example.ueberwachungssystem.Detector.Signalverarbeitung;
|
||||
// Source: https://introcs.cs.princeton.edu/java/97data/FFT.java.html
|
||||
|
||||
/******************************************************************************
|
||||
* Compilation: javac FFT.java
|
||||
* Execution: java FFT n
|
||||
* Dependencies: com.example.ueberwachungssystem.Detector.Signalverarbeitung.Complex.java
|
||||
*
|
||||
* Compute the FFT and inverse FFT of a length n complex sequence
|
||||
* using the radix 2 Cooley-Tukey algorithm.
|
||||
* Bare bones implementation that runs in O(n log n) time and O(n)
|
||||
* space. Our goal is to optimize the clarity of the code, rather
|
||||
* than performance.
|
||||
*
|
||||
* This implementation uses the primitive root of unity w = e^(-2 pi i / n).
|
||||
* Some resources use w = e^(2 pi i / n).
|
||||
*
|
||||
* Reference: https://www.cs.princeton.edu/~wayne/kleinberg-tardos/pdf/05DivideAndConquerII.pdf
|
||||
*
|
||||
* Limitations
|
||||
* -----------
|
||||
* - assumes n is a power of 2
|
||||
*
|
||||
* - not the most memory efficient algorithm (because it uses
|
||||
* an object type for representing complex numbers and because
|
||||
* it re-allocates memory for the subarray, instead of doing
|
||||
* in-place or reusing a single temporary array)
|
||||
*
|
||||
* For an in-place radix 2 Cooley-Tukey FFT, see
|
||||
* https://introcs.cs.princeton.edu/java/97data/InplaceFFT.java.html
|
||||
*
|
||||
******************************************************************************/
|
||||
|
||||
public class FFT {
|
||||
|
||||
// compute the FFT of x[], assuming its length n is a power of 2
|
||||
public static Complex[] fft(Complex[] x) {
|
||||
int n = x.length;
|
||||
|
||||
// base case
|
||||
if (n == 1) return new Complex[]{x[0]};
|
||||
|
||||
// radix 2 Cooley-Tukey FFT
|
||||
if (n % 2 != 0) {
|
||||
throw new IllegalArgumentException("n is not a power of 2");
|
||||
}
|
||||
|
||||
// compute FFT of even terms
|
||||
Complex[] even = new Complex[n / 2];
|
||||
for (int k = 0; k < n / 2; k++) {
|
||||
even[k] = x[2 * k];
|
||||
}
|
||||
Complex[] evenFFT = fft(even);
|
||||
|
||||
// compute FFT of odd terms
|
||||
Complex[] odd = even; // reuse the array (to avoid n log n space)
|
||||
for (int k = 0; k < n / 2; k++) {
|
||||
odd[k] = x[2 * k + 1];
|
||||
}
|
||||
Complex[] oddFFT = fft(odd);
|
||||
|
||||
// combine
|
||||
Complex[] y = new Complex[n];
|
||||
for (int k = 0; k < n / 2; k++) {
|
||||
double kth = -2 * k * Math.PI / n;
|
||||
Complex wk = new Complex(Math.cos(kth), Math.sin(kth));
|
||||
y[k] = evenFFT[k].plus(wk.times(oddFFT[k]));
|
||||
y[k + n / 2] = evenFFT[k].minus(wk.times(oddFFT[k]));
|
||||
}
|
||||
return y;
|
||||
}
|
||||
|
||||
|
||||
// compute the inverse FFT of x[], assuming its length n is a power of 2
|
||||
public static Complex[] ifft(Complex[] x) {
|
||||
int n = x.length;
|
||||
Complex[] y = new Complex[n];
|
||||
|
||||
// take conjugate
|
||||
for (int i = 0; i < n; i++) {
|
||||
y[i] = x[i].conjugate();
|
||||
}
|
||||
|
||||
// compute forward FFT
|
||||
y = fft(y);
|
||||
|
||||
// take conjugate again
|
||||
for (int i = 0; i < n; i++) {
|
||||
y[i] = y[i].conjugate();
|
||||
}
|
||||
|
||||
// divide by n
|
||||
for (int i = 0; i < n; i++) {
|
||||
y[i] = y[i].scale(1.0 / n);
|
||||
}
|
||||
|
||||
return y;
|
||||
|
||||
}
|
||||
|
||||
// compute the circular convolution of x and y
|
||||
public static Complex[] cconvolve(Complex[] x, Complex[] y) {
|
||||
|
||||
// should probably pad x and y with 0s so that they have same length
|
||||
// and are powers of 2
|
||||
if (x.length != y.length) {
|
||||
throw new IllegalArgumentException("Dimensions don't agree");
|
||||
}
|
||||
|
||||
int n = x.length;
|
||||
|
||||
// compute FFT of each sequence
|
||||
Complex[] a = fft(x);
|
||||
Complex[] b = fft(y);
|
||||
|
||||
// point-wise multiply
|
||||
Complex[] c = new Complex[n];
|
||||
for (int i = 0; i < n; i++) {
|
||||
c[i] = a[i].times(b[i]);
|
||||
}
|
||||
|
||||
// compute inverse FFT
|
||||
return ifft(c);
|
||||
}
|
||||
|
||||
|
||||
// compute the linear convolution of x and y
|
||||
public static Complex[] convolve(Complex[] x, Complex[] y) {
|
||||
Complex ZERO = new Complex(0, 0);
|
||||
|
||||
Complex[] a = new Complex[2 * x.length];
|
||||
for (int i = 0; i < x.length; i++) a[i] = x[i];
|
||||
for (int i = x.length; i < 2 * x.length; i++) a[i] = ZERO;
|
||||
|
||||
Complex[] b = new Complex[2 * y.length];
|
||||
for (int i = 0; i < y.length; i++) b[i] = y[i];
|
||||
for (int i = y.length; i < 2 * y.length; i++) b[i] = ZERO;
|
||||
|
||||
return cconvolve(a, b);
|
||||
}
|
||||
|
||||
// compute the DFT of x[] via brute force (n^2 time)
|
||||
public static Complex[] dft(Complex[] x) {
|
||||
int n = x.length;
|
||||
Complex ZERO = new Complex(0, 0);
|
||||
Complex[] y = new Complex[n];
|
||||
for (int k = 0; k < n; k++) {
|
||||
y[k] = ZERO;
|
||||
for (int j = 0; j < n; j++) {
|
||||
int power = (k * j) % n;
|
||||
double kth = -2 * power * Math.PI / n;
|
||||
Complex wkj = new Complex(Math.cos(kth), Math.sin(kth));
|
||||
y[k] = y[k].plus(x[j].times(wkj));
|
||||
}
|
||||
}
|
||||
return y;
|
||||
}
|
||||
|
||||
// display an array of com.example.ueberwachungssystem.Detector.Signalverarbeitung.Complex numbers to standard output
|
||||
public static void show(Complex[] x, String title) {
|
||||
System.out.println(title);
|
||||
System.out.println("-------------------");
|
||||
for (int i = 0; i < x.length; i++) {
|
||||
System.out.println(x[i]);
|
||||
}
|
||||
System.out.println();
|
||||
}
|
||||
|
||||
/***************************************************************************
|
||||
* Test client and sample execution
|
||||
*
|
||||
* % java FFT 4
|
||||
* x
|
||||
* -------------------
|
||||
* -0.03480425839330703
|
||||
* 0.07910192950176387
|
||||
* 0.7233322451735928
|
||||
* 0.1659819820667019
|
||||
*
|
||||
* y = fft(x)
|
||||
* -------------------
|
||||
* 0.9336118983487516
|
||||
* -0.7581365035668999 + 0.08688005256493803i
|
||||
* 0.44344407521182005
|
||||
* -0.7581365035668999 - 0.08688005256493803i
|
||||
*
|
||||
* z = ifft(y)
|
||||
* -------------------
|
||||
* -0.03480425839330703
|
||||
* 0.07910192950176387 + 2.6599344570851287E-18i
|
||||
* 0.7233322451735928
|
||||
* 0.1659819820667019 - 2.6599344570851287E-18i
|
||||
*
|
||||
* c = cconvolve(x, x)
|
||||
* -------------------
|
||||
* 0.5506798633981853
|
||||
* 0.23461407150576394 - 4.033186818023279E-18i
|
||||
* -0.016542951108772352
|
||||
* 0.10288019294318276 + 4.033186818023279E-18i
|
||||
*
|
||||
* d = convolve(x, x)
|
||||
* -------------------
|
||||
* 0.001211336402308083 - 3.122502256758253E-17i
|
||||
* -0.005506167987577068 - 5.058885073636224E-17i
|
||||
* -0.044092969479563274 + 2.1934338938072244E-18i
|
||||
* 0.10288019294318276 - 3.6147323062478115E-17i
|
||||
* 0.5494685269958772 + 3.122502256758253E-17i
|
||||
* 0.240120239493341 + 4.655566391833896E-17i
|
||||
* 0.02755001837079092 - 2.1934338938072244E-18i
|
||||
* 4.01805098805014E-17i
|
||||
*
|
||||
***************************************************************************/
|
||||
|
||||
public static void main(String[] args) {
|
||||
int n = Integer.parseInt(args[0]);
|
||||
Complex[] x = new Complex[n];
|
||||
|
||||
// original data
|
||||
for (int i = 0; i < n; i++) {
|
||||
x[i] = new Complex(i, 0);
|
||||
}
|
||||
show(x, "x");
|
||||
|
||||
// FFT of original data
|
||||
Complex[] y = fft(x);
|
||||
show(y, "y = fft(x)");
|
||||
|
||||
// FFT of original data
|
||||
Complex[] y2 = dft(x);
|
||||
show(y2, "y2 = dft(x)");
|
||||
|
||||
// take inverse FFT
|
||||
Complex[] z = ifft(y);
|
||||
show(z, "z = ifft(y)");
|
||||
|
||||
// circular convolution of x with itself
|
||||
Complex[] c = cconvolve(x, x);
|
||||
show(c, "c = cconvolve(x, x)");
|
||||
|
||||
// linear convolution of x with itself
|
||||
Complex[] d = convolve(x, x);
|
||||
show(d, "d = convolve(x, x)");
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@@ -2,78 +2,66 @@ package com.example.ueberwachungssystem;
|
||||
|
||||
import androidx.annotation.NonNull;
|
||||
import androidx.appcompat.app.AppCompatActivity;
|
||||
import androidx.camera.core.ExperimentalGetImage;
|
||||
import androidx.camera.view.PreviewView;
|
||||
|
||||
import android.os.Bundle;
|
||||
import android.util.Log;
|
||||
import android.view.View;
|
||||
import android.widget.ImageView;
|
||||
import android.widget.ToggleButton;
|
||||
import android.widget.Switch;
|
||||
import android.widget.TextView;
|
||||
|
||||
import com.example.ueberwachungssystem.Detector.DetectionReport;
|
||||
import com.example.ueberwachungssystem.Detector.Detector;
|
||||
import com.example.ueberwachungssystem.Detector.MicrophoneDetector;
|
||||
import com.jjoe64.graphview.GraphView;
|
||||
|
||||
import com.example.ueberwachungssystem.Detection.AudioRecorder;
|
||||
import com.example.ueberwachungssystem.Detection.DetectionReport;
|
||||
import com.example.ueberwachungssystem.Detection.Detector;
|
||||
import com.example.ueberwachungssystem.Detection.VideoDetector;
|
||||
|
||||
@ExperimentalGetImage
|
||||
public class MainActivity extends AppCompatActivity {
|
||||
|
||||
private TextView tv_log;
|
||||
MicrophoneDetector Mic;
|
||||
private Switch TglBtn_Mic;
|
||||
@Override
|
||||
protected void onCreate(Bundle savedInstanceState) {
|
||||
super.onCreate(savedInstanceState);
|
||||
setContentView(R.layout.activity_main);
|
||||
|
||||
|
||||
ImageView inputImageView = findViewById(R.id.inputImageView);
|
||||
ImageView outputImageView = findViewById(R.id.outputImageView);
|
||||
PreviewView previewView = findViewById(R.id.previewView);
|
||||
|
||||
|
||||
PermissionHandler permissionHandler = new PermissionHandler(this);
|
||||
|
||||
|
||||
permissionHandler.getPermissions();
|
||||
|
||||
if (permissionHandler.hasPermissions()) {
|
||||
AudioRecorder audioRecorder = new AudioRecorder(this);
|
||||
VideoDetector vd = new VideoDetector(this);
|
||||
//vd.setPreviewView(previewView);
|
||||
vd.debugProcessing(inputImageView, outputImageView);
|
||||
vd.setOnDetectionListener(new Detector.OnDetectionListener() {
|
||||
@Override
|
||||
public void onDetection(@NonNull DetectionReport detectionReport) {
|
||||
Log.d("onDetection", detectionReport.toString());
|
||||
}
|
||||
});
|
||||
vd.startDetection();
|
||||
|
||||
ToggleButton toggleButton = findViewById(R.id.toggleButton);
|
||||
toggleButton.setOnClickListener(new View.OnClickListener() {
|
||||
@Override
|
||||
public void onClick(View v) {
|
||||
if (toggleButton.isChecked())
|
||||
{
|
||||
//vd.startDetection();
|
||||
//vd.stopDetection();
|
||||
vd.startRecording();
|
||||
audioRecorder.startRecording();
|
||||
}
|
||||
else {
|
||||
//vd.stopDetection();
|
||||
vd.stopRecording();
|
||||
audioRecorder.stopRecording();
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
}
|
||||
tv_log = (TextView) findViewById(R.id.tv_log); //Set textview for showing logged content
|
||||
Log.d("Main",this.getClass().getSimpleName() + ".onCreate");
|
||||
Mic = new MicrophoneDetector(this);
|
||||
setupMic();
|
||||
Mic.setOnDetectionListener(new Detector.OnDetectionListener() {
|
||||
@Override
|
||||
public void onDetection(@NonNull DetectionReport detectionReport) {
|
||||
Log.d("Main", "Detection erkannt!");
|
||||
}
|
||||
});
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onResume() {
|
||||
super.onResume();
|
||||
Log.d("Main",this.getClass().getSimpleName() + ".onResume");
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onPause() {
|
||||
super.onPause();
|
||||
Log.d("Main",this.getClass().getSimpleName() + ".onPause");
|
||||
}
|
||||
|
||||
private void setupMic() {
|
||||
TglBtn_Mic = (Switch) findViewById(R.id.TglBtn_Mic);
|
||||
TglBtn_Mic.setOnClickListener(new View.OnClickListener() {
|
||||
@Override
|
||||
public void onClick(View v) {
|
||||
if (v == TglBtn_Mic) {
|
||||
Log.d("Main","onClick toggleButtonThread " + TglBtn_Mic.isChecked());
|
||||
if (TglBtn_Mic.isChecked()) {
|
||||
Mic.startDetection();
|
||||
} else {
|
||||
Mic.stopDetection();
|
||||
}
|
||||
}
|
||||
}
|
||||
});
|
||||
}
|
||||
}
|
||||
@@ -1,43 +0,0 @@
|
||||
package com.example.ueberwachungssystem;
|
||||
|
||||
|
||||
import android.app.Activity;
|
||||
import android.content.Context;
|
||||
import android.content.pm.PackageManager;
|
||||
import android.widget.Toast;
|
||||
|
||||
import androidx.core.app.ActivityCompat;
|
||||
import androidx.core.content.ContextCompat;
|
||||
|
||||
public class PermissionHandler {
|
||||
private final Context context;
|
||||
private static final int PERMISSION_REQUEST_CODE = 23409;
|
||||
private static final String[] permissions = new String[]{
|
||||
android.Manifest.permission.CAMERA,
|
||||
android.Manifest.permission.RECORD_AUDIO
|
||||
};
|
||||
|
||||
public PermissionHandler(Context context) {
|
||||
this.context = context;
|
||||
}
|
||||
|
||||
public boolean hasPermissions() {
|
||||
boolean permissionState = true;
|
||||
for (String permission: permissions) {
|
||||
permissionState = permissionState && ContextCompat.checkSelfPermission(context, permission) == PackageManager.PERMISSION_GRANTED;
|
||||
}
|
||||
return permissionState;
|
||||
}
|
||||
|
||||
public void getPermissions() {
|
||||
if (!hasPermissions())
|
||||
ActivityCompat.requestPermissions((Activity) context, permissions, PERMISSION_REQUEST_CODE);
|
||||
}
|
||||
|
||||
public void showPermissionToast() {
|
||||
if (hasPermissions())
|
||||
Toast.makeText(context, "permissions available", Toast.LENGTH_SHORT).show();
|
||||
else
|
||||
Toast.makeText(context, "permissions missing", Toast.LENGTH_SHORT).show();
|
||||
}
|
||||
}
|
||||
@@ -1,41 +1,26 @@
|
||||
<?xml version="1.0" encoding="utf-8"?>
|
||||
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
|
||||
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
|
||||
xmlns:app="http://schemas.android.com/apk/res-auto"
|
||||
xmlns:tools="http://schemas.android.com/tools"
|
||||
android:layout_width="match_parent"
|
||||
android:layout_height="match_parent"
|
||||
android:layout_gravity="center"
|
||||
android:gravity="top"
|
||||
android:orientation="vertical"
|
||||
tools:context=".MainActivity">
|
||||
|
||||
|
||||
<androidx.camera.view.PreviewView
|
||||
android:id="@+id/previewView"
|
||||
android:layout_width="match_parent"
|
||||
android:layout_height="wrap_content"
|
||||
android:backgroundTint="@android:color/black"/>
|
||||
|
||||
<ToggleButton
|
||||
android:id="@+id/toggleButton"
|
||||
android:layout_width="match_parent"
|
||||
android:layout_height="wrap_content"
|
||||
android:text="ToggleButton" />
|
||||
|
||||
<ImageView
|
||||
android:id="@+id/inputImageView"
|
||||
<TextView
|
||||
android:id="@+id/tv_log"
|
||||
android:layout_width="wrap_content"
|
||||
android:layout_height="wrap_content"
|
||||
tools:srcCompat="@tools:sample/avatars" />
|
||||
android:text="Log"
|
||||
app:layout_constraintEnd_toEndOf="parent"
|
||||
app:layout_constraintStart_toStartOf="parent"
|
||||
app:layout_constraintTop_toBottomOf="@+id/TglBtn_Mic" />
|
||||
|
||||
<ImageView
|
||||
android:id="@+id/outputImageView"
|
||||
<Switch
|
||||
android:id="@+id/TglBtn_Mic"
|
||||
android:layout_width="wrap_content"
|
||||
android:layout_height="wrap_content"
|
||||
tools:srcCompat="@tools:sample/avatars" />
|
||||
android:text="Mic"
|
||||
app:layout_constraintEnd_toEndOf="parent"
|
||||
app:layout_constraintTop_toTopOf="parent" />
|
||||
|
||||
<androidx.camera.view.PreviewView
|
||||
android:layout_width="wrap_content"
|
||||
android:layout_height="wrap_content" />
|
||||
|
||||
</LinearLayout>
|
||||
</androidx.constraintlayout.widget.ConstraintLayout>
|
||||
+2
-1
@@ -18,4 +18,5 @@ android.useAndroidX=true
|
||||
# Enables namespacing of each library's R class so that its R class includes only the
|
||||
# resources declared in the library itself and none from the library's dependencies,
|
||||
# thereby reducing the size of the R class for that library
|
||||
android.nonTransitiveRClass=true
|
||||
android.nonTransitiveRClass=true
|
||||
android.enableJetifier=true
|
||||
Reference in New Issue
Block a user