Dateien hochladen nach "Gruppe3"

app/src/main/AndroidManifest.xml

@@ -2,13 +2,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.example.greenwatch">
 
-    <uses-permission android:name="android.permission.INTERNET" />
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
-    <uses-permission android:name="android.permission.READ_MEDIA_AUDIO" />
-    <uses-permission android:name="android.permission.READ_MEDIA_VIDEO" />
-    <uses-permission android:name="android.permission.RECORD_AUDIO" />
-    <uses-permission android:name="android.permission.CAMERA" />
-
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"

app/src/main/java/com/example/greenwatch/AlarmRecorder.java

@@ -1,225 +0,0 @@
-package com.example.greenwatch;
-
-import android.graphics.SurfaceTexture;
-import android.media.MediaCodec;
-import android.media.MediaExtractor;
-import android.media.MediaFormat;
-import android.media.MediaMuxer;
-import android.media.MediaRecorder;
-import android.os.Environment;
-import android.view.Surface;
-import android.view.SurfaceHolder;
-
-import java.io.File;
-import java.io.IOException;
-import java.nio.ByteBuffer;
-
-public class AlarmRecorder {
-    private String videoPath;
-    private String audioPath;
-    private MediaFormat videoFormat;
-    private MediaFormat audioFormat;
-    private MediaExtractor videoExtractor;
-    private MediaExtractor audioExtractor;
-    private Runnable audioRecorderRunnable;
-    private Runnable videoRecorderRunnable;
-    private MediaRecorder videoRecorder;
-    private MediaRecorder audioRecorder;
-    //private SurfaceHolder previewHolder;
-    private Surface surface;
-    private Thread videoThread; // Video-Thread als Instanzvariable
-    private Thread audioThread; // Audio-Thread als Instanzvariable
-
-    public AlarmRecorder(SurfaceTexture surfaceTexture) {
-        audioRecorder = new MediaRecorder();
-        videoRecorder = new MediaRecorder();
-        videoExtractor = new MediaExtractor();
-        audioExtractor = new MediaExtractor();
-        this.surface = new Surface(surfaceTexture);
-    }
-
-    public void startRecording() {
-        createStoragePaths(); //Speicherort und -namen für Audio- und Video-Datei
-
-        audioRecorderRunnable = new AudioRecorder(audioRecorder, audioPath);
-        videoRecorderRunnable = new VideoRecorder(videoRecorder, videoPath, surface);
-        audioThread = new Thread(audioRecorderRunnable);
-        videoThread = new Thread(videoRecorderRunnable);
-
-        //Threads starten
-        videoThread.start();
-        audioThread.start();
-    }
-
-    public void stopRecording() {
-        try {
-            stopVideoRecording();
-            stopAudioRecording();
-
-            waitTillThreadsStopped();
-            File videoFile = new File(videoPath); //Speichere das aufgenommene Video
-            File audioFile = new File(audioPath); //Speichere die aufgenommene Audio
-
-            if (videoFile.exists() && audioFile.exists()) {
-                //Wenn Video- und Audioaufzeichnung gestoppt und abgespeichert sind, beginne mit dem Mergeprozess der beiden
-                mergeVideoWithAudio();
-            }
-        } catch (RuntimeException stopException) {
-            stopException.printStackTrace();
-        }
-    }
-
-    private void createStoragePaths(){
-        //Pfade zum Zwischenspeichern der aufgenommenen Audio und Video-Datei
-        String externalStorageDirectory = Environment.getExternalStorageDirectory().getAbsolutePath();
-        String dcimDirectory = externalStorageDirectory + "/DCIM";
-        videoPath = dcimDirectory + "/video.mp4";
-        audioPath = dcimDirectory + "/audio.mp3";
-    }
-
-    private void stopVideoRecording(){
-        if (videoRecorder != null) {
-            videoRecorder.stop();
-            videoRecorder.release();
-            videoRecorder = null;
-        }
-    }
-
-    private void stopAudioRecording(){
-        if (audioRecorder != null) {
-            audioRecorder.stop();
-            audioRecorder.release();
-            audioRecorder = null;
-        }
-    }
-
-    private void waitTillThreadsStopped(){
-        try {
-            videoThread.join();
-            audioThread.join();
-        } catch (InterruptedException e) {
-            e.printStackTrace();
-        }
-    }
-
-    private void mergeVideoWithAudio() {
-        try {
-            setVideoExtractorDataSource(); //extrahieren der Video Datei, die zuvor zwischengespeichert wurde
-            setAudioExtractorDataSource(); //extrahieren der Audio Datei, die zuvor zwischengespeichert wurde
-
-            //Speicherort der später zusammengeführten Datei
-            String outputFilePath = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES).getAbsolutePath() + "/merged_video.mp4";
-            //MediaMuxer zum Zusammenführen einer Audio- und einer Videodatei
-            MediaMuxer muxer = new MediaMuxer(outputFilePath, MediaMuxer.OutputFormat.MUXER_OUTPUT_MPEG_4);
-            int videoTrack = muxer.addTrack(videoFormat);
-            int audioTrack = muxer.addTrack(audioFormat);
-            muxer.start();
-
-            ByteBuffer buffer = ByteBuffer.allocate(1024 * 1024);
-            MediaCodec.BufferInfo bufferInfo = new MediaCodec.BufferInfo();
-
-            videoExtraction(buffer, videoTrack, bufferInfo, muxer);
-            audioExtraction(buffer, audioTrack, bufferInfo, muxer);
-
-            muxer.stop();
-            muxer.release();
-
-            // Löschen der separaten Video- und Audio-Dateien
-            deleteVideoFile();
-            deleteAudioFile();
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-    }
-
-    private void setVideoExtractorDataSource() {
-        try {
-            videoExtractor.setDataSource(videoPath);
-            int videoTrackIndex = getTrackIndex(videoExtractor, "video/");
-            if (videoTrackIndex < 0) {
-                // Video-Track nicht gefunden
-                return;
-            }
-            videoExtractor.selectTrack(videoTrackIndex);
-            videoFormat = videoExtractor.getTrackFormat(videoTrackIndex);
-        } catch (IOException e) {
-            throw new RuntimeException(e);
-        }
-    }
-
-    private void setAudioExtractorDataSource() {
-        try {
-            audioExtractor.setDataSource(audioPath);
-            int audioTrackIndex = getTrackIndex(audioExtractor, "audio/");
-            if (audioTrackIndex < 0) {
-                // Audio-Track nicht gefunden
-                return;
-            }
-            audioExtractor.selectTrack(audioTrackIndex);
-            audioFormat = audioExtractor.getTrackFormat(audioTrackIndex);
-
-        } catch (IOException e) {
-            throw new RuntimeException(e);
-        }
-    }
-
-    private int getTrackIndex(MediaExtractor extractor, String mimeType) {
-        int trackCount = extractor.getTrackCount();
-        for (int i = 0; i < trackCount; i++) {
-            MediaFormat format = extractor.getTrackFormat(i);
-            String trackMimeType = format.getString(MediaFormat.KEY_MIME);
-            if (trackMimeType.startsWith(mimeType)) {
-                return i;
-            }
-        }
-        return -1;
-    }
-
-    private void videoExtraction(ByteBuffer buffer, int videoTrack, MediaCodec.BufferInfo bufferInfo, MediaMuxer muxer) {
-        videoExtractor.seekTo(0, MediaExtractor.SEEK_TO_CLOSEST_SYNC);
-        while (true) {
-            int sampleSize = videoExtractor.readSampleData(buffer, 0);
-            if (sampleSize < 0) {
-                break;
-            }
-            long presentationTimeUs = videoExtractor.getSampleTime();
-            bufferInfo.offset = 0;
-            bufferInfo.size = sampleSize;
-            bufferInfo.flags = MediaCodec.BUFFER_FLAG_KEY_FRAME;
-            bufferInfo.presentationTimeUs = presentationTimeUs;
-            muxer.writeSampleData(videoTrack, buffer, bufferInfo);
-            videoExtractor.advance();
-        }
-    }
-
-    private void audioExtraction(ByteBuffer buffer, int audioTrack, MediaCodec.BufferInfo bufferInfo, MediaMuxer muxer) {
-        audioExtractor.seekTo(0, MediaExtractor.SEEK_TO_CLOSEST_SYNC);
-        while (true) {
-            int sampleSize = audioExtractor.readSampleData(buffer, 0);
-            if (sampleSize < 0) {
-                break;
-            }
-            long presentationTimeUs = audioExtractor.getSampleTime();
-            bufferInfo.offset = 0;
-            bufferInfo.size = sampleSize;
-            bufferInfo.flags = 0; // or MediaCodec.BUFFER_FLAG_KEY_FRAME
-            bufferInfo.presentationTimeUs = presentationTimeUs;
-            muxer.writeSampleData(audioTrack, buffer, bufferInfo);
-            audioExtractor.advance();
-        }
-    }
-
-    private void deleteVideoFile(){
-        File videoFile = new File(videoPath);
-        if (videoFile.exists()) {
-            videoFile.delete();
-        }
-    }
-
-    private void deleteAudioFile(){
-        File audioFile = new File(audioPath);
-        if (audioFile.exists()) {
-            audioFile.delete();
-        }
-    }
-}

app/src/main/java/com/example/greenwatch/AudioRecorder.java

@@ -1,30 +0,0 @@
-package com.example.greenwatch;
-
-import android.media.MediaRecorder;
-
-import java.io.IOException;
-
-public class AudioRecorder implements Runnable {
-
-    private final MediaRecorder audioRecorder;
-    private final String audioPath;
-    public AudioRecorder(MediaRecorder audioRecorder, String audioPath) {
-        this.audioRecorder = audioRecorder;
-        this.audioPath = audioPath;
-    }
-    @Override
-    public void run() {
-        audioRecorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
-        audioRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
-        audioRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
-        audioRecorder.setOutputFile(audioPath);
-
-        try {
-            audioRecorder.prepare();
-            audioRecorder.start();
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-    }
-
-}

app/src/main/java/com/example/greenwatch/Beschleunigungssensor.java

@@ -0,0 +1,4 @@
+package com.example.greenwatch;
+
+public class Beschleunigungssensor {
+}

app/src/main/java/com/example/greenwatch/Kamera.java

@@ -0,0 +1,4 @@
+package com.example.greenwatch;
+
+public class Kamera {
+}

app/src/main/java/com/example/greenwatch/MainActivity.java

@@ -1,101 +1,14 @@
 package com.example.greenwatch;
 
-import android.Manifest;
-import android.content.pm.PackageManager;
-import android.graphics.SurfaceTexture;
-import android.os.Bundle;
-import android.view.TextureView;
-import android.view.View;
-import android.widget.Button;
-import android.widget.Toast;
-
 import androidx.appcompat.app.AppCompatActivity;
-import androidx.core.app.ActivityCompat;
-import androidx.core.content.ContextCompat;
 
-public class MainActivity extends AppCompatActivity implements TextureView.SurfaceTextureListener{
+import android.os.Bundle;
 
-    private boolean isRecording = false;
+public class MainActivity extends AppCompatActivity {
-    private static final int REQUEST_PERMISSION = 200;
-    private Button button;
-    private TextureView textureView;
-    private AlarmRecorder alarmRecorder;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
-
-        button = findViewById(R.id.button);
-        textureView = findViewById(R.id.textureView);
-        textureView.setSurfaceTextureListener(this);
-
-        button.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                if (!isRecording) {
-                    if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.CAMERA)
-                            != PackageManager.PERMISSION_GRANTED
-                            || ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE)
-                            != PackageManager.PERMISSION_GRANTED
-                            || ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.RECORD_AUDIO)
-                            != PackageManager.PERMISSION_GRANTED) {
-                        ActivityCompat.requestPermissions(MainActivity.this,
-                                new String[]{Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.RECORD_AUDIO},
-                                REQUEST_PERMISSION);
-                    } else {
-                        isRecording = true;
-                        alarmRecorder.startRecording();
-                    }
-                } else {
-                    isRecording = false;
-                    alarmRecorder.stopRecording();
-                }
-            }
-        });
-    }
-
-    @Override
-    public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture, int width, int height) {
-        alarmRecorder = new AlarmRecorder(surfaceTexture);
-    }
-
-    @Override
-    public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {
-        // Die Größe der SurfaceTexture hat sich geändert
-        // Hier können entsprechende Anpassungen vorgenommen werden
-    }
-
-    @Override
-    public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
-        // SurfaceTexture wurde zerstört
-        // Hier können entsprechende Bereinigungen durchgeführt werden
-        return true;
-    }
-
-    @Override
-    public void onSurfaceTextureUpdated(SurfaceTexture surface) {
-        // SurfaceTexture wurde aktualisiert
-        // Hier können entsprechende Aktionen ausgeführt werden, wenn gewünscht
-    }
-
-    private SurfaceTexture getSurfaceTexture() {
-        return textureView.getSurfaceTexture();
-    }
-
-    @Override
-    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
-        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
-        if (requestCode == REQUEST_PERMISSION) {
-            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
-                // Berechtigungen wurden gewährt
-                Toast.makeText(this, "Berechtigungen gewährt", Toast.LENGTH_SHORT).show();
-                isRecording = true;
-                alarmRecorder.startRecording();
-            } else {
-                // Berechtigungen wurden nicht gewährt
-                Toast.makeText(this, "Berechtigungen nicht gewährt", Toast.LENGTH_SHORT).show();
-            }
-        }
     }
 }

app/src/main/java/com/example/greenwatch/Mikrofon.java

@@ -0,0 +1,4 @@
+package com.example.greenwatch;
+
+public class Mikrofon {
+}

app/src/main/java/com/example/greenwatch/VideoRecorder.java

@@ -1,39 +0,0 @@
-package com.example.greenwatch;
-
-import android.media.MediaRecorder;
-import android.view.Surface;
-import android.view.SurfaceHolder;
-
-import java.io.IOException;
-
-public class VideoRecorder implements Runnable{
-    private final MediaRecorder videoRecorder;
-    private final String videoPath;
-    //private SurfaceHolder previewHolder;
-    private Surface surface;
-
-
-    public VideoRecorder(MediaRecorder videoRecorder, String videoPath, Surface surface) {
-        this.videoRecorder = videoRecorder;
-        this.videoPath = videoPath;
-        this.surface = surface;
-    }
-    @Override
-    public void run() {
-        videoRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
-        videoRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
-        videoRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.DEFAULT);
-        videoRecorder.setOutputFile(videoPath);
-        videoRecorder.setOrientationHint(90);
-        videoRecorder.setPreviewDisplay(surface);
-
-        try {
-            videoRecorder.prepare();
-            videoRecorder.start();
-
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-    }
-}
-

app/src/main/res/layout/activity_main.xml

@@ -6,26 +6,13 @@
     android:layout_height="match_parent"
     tools:context=".MainActivity">
 
-    <TextureView
+    <TextView
-        android:id="@+id/textureView"
-        android:layout_width="1sp"
-        android:layout_height="1sp"
-        android:visibility="visible"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHorizontal_bias="1.0"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@id/button"
-        app:layout_constraintVertical_bias="0.0" />
-
-    <Button
-        android:id="@+id/button"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_marginEnd="339dp"
+        android:text="Hello World!"
-        android:text="Record Video"
+        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
 </androidx.constraintlayout.widget.ConstraintLayout>