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FFmpeg Video Editor.
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‎.gitignore

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*.iml
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.gradle
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/local.properties
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/.idea/caches
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/.idea/libraries
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/.idea/modules.xml
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/.idea/workspace.xml
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/.idea/navEditor.xml
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/.idea/assetWizardSettings.xml
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.DS_Store
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/build
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/captures
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.externalNativeBuild
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.cxx

‎app/.gitignore

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/build

‎app/build.gradle

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apply plugin: 'com.android.application'
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android {
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compileSdkVersion 29
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buildToolsVersion "29.0.3"
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defaultConfig {
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applicationId "com.aryainfotech.ffmpegvideoeditor"
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minSdkVersion 21
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targetSdkVersion 29
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versionCode 1
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versionName "1.0"
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testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
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}
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compileOptions {
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sourceCompatibility JavaVersion.VERSION_1_8
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targetCompatibility JavaVersion.VERSION_1_8
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}
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buildTypes {
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release {
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minifyEnabled false
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proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
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}
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}
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}
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dependencies {
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implementation fileTree(dir: 'libs', include: ['*.jar'])
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implementation 'androidx.appcompat:appcompat:1.2.0'
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implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
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testImplementation 'junit:junit:4.12'
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androidTestImplementation 'androidx.test.ext:junit:1.1.2'
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androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
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implementation 'com.google.android.material:material:1.3.0'
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// implementation 'com.arthenica:mobile-ffmpeg-full-gpl:4.4.LTS'
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implementation 'com.arthenica:mobile-ffmpeg-full:4.4.LTS'
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implementation 'org.florescu.android.rangeseekbar:rangeseekbar-library:0.3.0'
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implementation 'androidx.cardview:cardview:1.0.0'
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implementation 'commons-io:commons-io:2.8.0'
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}

‎app/proguard-rules.pro

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# Add project specific ProGuard rules here.
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# You can control the set of applied configuration files using the
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# proguardFiles setting in build.gradle.
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#
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# For more details, see
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# http://developer.android.com/guide/developing/tools/proguard.html
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# If your project uses WebView with JS, uncomment the following
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# and specify the fully qualified class name to the JavaScript interface
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# class:
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#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
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# public *;
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#}
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# Uncomment this to preserve the line number information for
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# debugging stack traces.
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#-keepattributes SourceFile,LineNumberTable
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# If you keep the line number information, uncomment this to
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# hide the original source file name.
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#-renamesourcefileattribute SourceFile

‎app/src/androidTest/java/com/aryainfotech/ffmpegvideoeditor/ExampleInstrumentedTest.java

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package com.aryainfotech.ffmpegvideoeditor;
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import android.content.Context;
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import androidx.test.platform.app.InstrumentationRegistry;
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import androidx.test.ext.junit.runners.AndroidJUnit4;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import static org.junit.Assert.*;
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/**
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* Instrumented test, which will execute on an Android device.
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*
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* @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
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*/
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@RunWith(AndroidJUnit4.class)
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public class ExampleInstrumentedTest {
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@Test
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public void useAppContext() {
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// Context of the app under test.
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Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
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assertEquals("com.aryainfotech.ffmpegvideoeditor", appContext.getPackageName());
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}
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}

‎app/src/main/AndroidManifest.xml

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<?xml version="1.0" encoding="utf-8"?>
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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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package="com.aryainfotech.ffmpegvideoeditor">
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<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
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<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
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<uses-permission android:name="android.permission.RECORD_AUDIO" />
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<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
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<application
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android:allowBackup="true"
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android:icon="@mipmap/ic_launcher"
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android:label="@string/app_name"
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android:largeHeap="true"
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android:requestLegacyExternalStorage="true"
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android:roundIcon="@mipmap/ic_launcher_round"
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android:supportsRtl="true"
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android:theme="@style/AppTheme"
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tools:ignore="AllowBackup,UnusedAttribute">
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<activity
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android:name="com.aryainfotech.ffmpegvideoeditor.activity.MainActivity"
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android:screenOrientation="portrait"
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tools:ignore="LockedOrientationActivity">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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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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<activity
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android:name="com.aryainfotech.ffmpegvideoeditor.activity.PreviewActivity"
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android:screenOrientation="portrait"
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tools:ignore="LockedOrientationActivity">
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</activity>
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<activity
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android:name="com.aryainfotech.ffmpegvideoeditor.activity.PreviewImageActivity"
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android:screenOrientation="portrait"
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tools:ignore="LockedOrientationActivity">
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</activity>
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<activity
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android:name="com.aryainfotech.ffmpegvideoeditor.activity.AudioPreviewActivity"
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android:screenOrientation="portrait"
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tools:ignore="LockedOrientationActivity">
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</activity>
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</application>
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</manifest>

‎app/src/main/java/com/aryainfotech/ffmpegvideoeditor/activity/AudioPreviewActivity.java

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package com.aryainfotech.ffmpegvideoeditor.activity;
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import android.media.AudioManager;
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import android.media.MediaPlayer;
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import android.media.audiofx.Visualizer;
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import android.net.Uri;
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import android.os.Bundle;
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import android.view.MenuItem;
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import android.widget.TextView;
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import com.aryainfotech.ffmpegvideoeditor.R;
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import com.aryainfotech.ffmpegvideoeditor.views.VisualizerView;
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import androidx.annotation.Nullable;
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import androidx.appcompat.app.AppCompatActivity;
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/**
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* Created by Bhuvnesh on 09-03-2017.
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*/
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public class AudioPreviewActivity extends AppCompatActivity {
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private VisualizerView mVisualizerView;
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private MediaPlayer mMediaPlayer;
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private Visualizer mVisualizer;
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private static final String FILEPATH = "filepath";
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@Override
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protected void onCreate(@Nullable Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_audio_preview);
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getSupportActionBar().setDisplayHomeAsUpEnabled(true);
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getSupportActionBar().setDisplayShowHomeEnabled(true);
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mVisualizerView = (VisualizerView) findViewById(R.id.visualizerView);
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}
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@Override
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protected void onResume() {
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super.onResume();
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initAudio();
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}
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@Override
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public boolean onOptionsItemSelected(MenuItem item) {
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// handle arrow click here
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if (item.getItemId() == android.R.id.home) {
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finish(); // close this activity and return to preview activity (if there is any)
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}
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return super.onOptionsItemSelected(item);
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}
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@Override
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protected void onPause() {
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super.onPause();
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if (mMediaPlayer != null) {
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mVisualizer.release();
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mMediaPlayer.release();
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mMediaPlayer = null;
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}
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}
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private void initAudio() {
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setVolumeControlStream(AudioManager.STREAM_MUSIC);
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String filePath = getIntent().getStringExtra(FILEPATH);
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TextView tvInstruction=(TextView) findViewById(R.id.tvInstruction);
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tvInstruction.setText("Audio stored at path "+filePath);
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mMediaPlayer = MediaPlayer.create(this, Uri.parse(filePath));
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setupVisualizerFxAndUI();
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// Make sure the visualizer is enabled only when you actually want to
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// receive data, and
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// when it makes sense to receive data.
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mVisualizer.setEnabled(true);
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// When the stream ends, we don't need to collect any more data. We
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// don't do this in
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// setupVisualizerFxAndUI because we likely to have more,
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// non-Visualizer related code
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// in this callback.
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mMediaPlayer
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.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
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public void onCompletion(MediaPlayer mediaPlayer) {
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mVisualizer.setEnabled(false);
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}
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});
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mMediaPlayer.start();
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mMediaPlayer.setLooping(true);
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}
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private void setupVisualizerFxAndUI() {
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// Create the Visualizer object and attach it to our media player.
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mVisualizer = new Visualizer(mMediaPlayer.getAudioSessionId());
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mVisualizer.setCaptureSize(Visualizer.getCaptureSizeRange()[1]);
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mVisualizer.setDataCaptureListener(
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new Visualizer.OnDataCaptureListener() {
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public void onWaveFormDataCapture(Visualizer visualizer,
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byte[] bytes, int samplingRate) {
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mVisualizerView.updateVisualizer(bytes);
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}
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public void onFftDataCapture(Visualizer visualizer,
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byte[] bytes, int samplingRate) {
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}
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}, Visualizer.getMaxCaptureRate() / 2, true, false);
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}
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}

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