Initial commit

2025-02-18 21:43:34 +03:00 · 2020-06-09 01:01:48 +02:00
commit 00d8471408
40 changed files with 1171 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,10 @@
+*.iml
+.gradle
+/local.properties
+/.idea/
+.DS_Store
+/build
+/dist
+/captures
+.externalNativeBuild
+.cxx
--- a/BUILD.md
+++ b/BUILD.md
@@ -0,0 +1,46 @@
+# Build
+
+## Debug
+
+This project is an Android application with some shell scripts to execute on the
+computer. Therefore, just use `gradle` as usual:
+
+```
+./gradlew assembleDebug
+```
+
+(or build from _Android Studio_)
+
+To run it:
+
+```bash
+./run
+./run <serial>  # if several devices are connected
+```
+
+_Since building is very fast, `./run` also executes `./gradlew assembleDebug` to
+always run an up-to-date version._
+
+
+## Release
+
+To build and install a release, you need to generate a signed APK.
+
+For that purpose, first generate a _keystore_:
+
+```bash
+# generate sndcpy.keystore file
+keytool -genkey -v -keystore sndcpy.keystore -alias sndcpy \
+        -keyalg RSA -keysize 2048 -validity 30000
+```
+
+Then, add these lines (and adapt) in `~/.gradle/gradle.properties`:
+
+```bash
+SNDCPY_STORE_FILE=/path/to/your/sndcpy.keystore
+SNDCPY_STORE_PASSWORD=the_keystore_password
+SNDCPY_KEY_ALIAS=sndcpy
+SNDCPY_KEY_PASSWORD=the_key_password
+```
+
+Then, execute `./release.sh`. It will generate a release in `dist/`.
--- a/21
+++ b/21
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020 Romain Vimont
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
--- a/README.md
+++ b/README.md
@@ -0,0 +1,119 @@
+# sndcpy
+
+This tool forwards audio from an Android 10 device to the computer. It does not
+require any _root_ access. It works on _GNU/Linux_, _Windows_ and _macOS_.
+
+The purpose is to enable [audio forwarding][issue14] while mirroring with
+[scrcpy]. However, it can be used independently.
+
+[issue14]: https://github.com/Genymobile/scrcpy/issues/14
+[scrcpy]: https://github.com/Genymobile/scrcpy
+
+
+## Requirements
+
+ - The Android device requires at least Android 10.
+ - [VLC] must be installed on the computer.
+
+[vlc]: https://www.videolan.org/
+
+
+## Get the app
+
+Download the latest release:
+
+ - [`sndcpy-v1.0.zip`][release]  
+   _SHA256: TODO_
+ - [`sndcpy-with-adb-windows-v1.0.zip`][release-adb]  
+   _SHA256: TODO_
+
+_On Windows, for simplicity, take the second archive, which also contains
+`adb`._
+
+[release]: https://github.com/rom1v/sndcpy/releases/download/v1.0/sndcpy-v1.0.zip
+[release-adb]: https://github.com/rom1v/sndcpy/releases/download/v1.0/sndcpy-with-adb-windows-v1.0.zip
+
+Alternatively, you could [build the app][BUILD].
+
+[BUILD]: BUILD.md
+
+## Run the app
+
+Plug an Android 10 device with USB debugging enabled, and execute:
+
+```bash
+./sndcpy
+```
+
+If several devices are connected (listed by `adb devices`):
+
+```bash
+./sndcpy <serial>  # replace <serial> by the device serial
+```
+
+_(omit `./` on Windows)_
+
+It will install the app on the device, and request permission to start audio
+capture:
+
+![screenshot](assets/request.png)
+
+Once you clicked on _START NOW_, press _Enter_ in the console to start playing
+on the computer. Press `Ctrl`+`c` in the terminal to stop (except on Windows,
+just disconnect the device or stop capture from the device notifications).
+
+VLC may print this error message once:
+
+```
+main stream error: connection error: Connection refused
+```
+
+It is "expected", just ignore it.
+
+The sound continues to be played on the device. The volume can be adjusted
+independently on the device and on the computer.
+
+## Uninstall
+
+To uninstall the app from the device:
+
+```bash
+adb uninstall com.rom1v.sndcpy
+```
+
+## Apps restrictions
+
+`sndcpy` may only forward audio from apps which do not [prevent audio
+capture][allow]. The rules are detailed in [§capture policy][rules]:
+
+> - By default, apps that target versions up to and including to Android 9.0 do
+>   not permit playback capture. To enable it, include
+>   `android:allowAudioPlaybackCapture="true"` in the app's `manifest.xml` file.
+> - By default, apps that target Android 10 (API level 29) or higher allow their
+>   audio to be captured. To disable playback capture, include
+>   `android:allowAudioPlaybackCapture="false"` in the app's `manifest.xml`
+>   file.
+
+So some apps might need to be updated to support audio capture.
+
+[allow]: https://developer.android.com/guide/topics/media/playback-capture#allowing_playback_capture
+[rules]: https://developer.android.com/guide/topics/media/playback-capture#capture_policy
+
+## Audio delay
+
+This is just a proof-of-concept, so it's far from perfect.
+
+For example, jitter may cause VLC to automatically increase its buffering,
+causing an unacceptable delay:
+
+```
+main input error: ES_OUT_SET_(GROUP_)PCR  is called too late (pts_delay increased to 377 ms)
+```
+
+In that case, just restart it.
+
+## Blog post
+
+ - [Audio forwarding on Android 10][blogpost]
+
+[blogpost]: https://blog.rom1v.com/2020/06/audio-forwarding-on-android-10/
--- a/app/.gitignore
+++ b/app/.gitignore
@@ -0,0 +1 @@
+/build
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -0,0 +1,36 @@
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 29
+    buildToolsVersion "29.0.3"
+
+    defaultConfig {
+        applicationId "com.rom1v.sndcpy"
+        minSdkVersion 29
+        targetSdkVersion 29
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+if (project.hasProperty("SNDCPY_STORE_FILE")) {
+    android.signingConfigs {
+        release {
+            // to be defined in ~/.gradle/gradle.properties
+            storeFile file(RELEASE_STORE_FILE)
+            storePassword RELEASE_STORE_PASSWORD
+            keyAlias RELEASE_KEY_ALIAS
+            keyPassword RELEASE_KEY_PASSWORD
+        }
+    }
+    android.buildTypes.release.signingConfig = android.signingConfigs.release
+}
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -0,0 +1,29 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.rom1v.sndcpy">
+
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+    <uses-permission android:name="android.permission.RECORD_AUDIO" />
+
+    <application
+        android:allowBackup="false"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round">
+        <activity
+            android:name="com.rom1v.sndcpy.MainActivity"
+            android:theme="@style/Theme.Transparent"
+            android:showWhenLocked="true"
+            android:turnScreenOn="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <service
+            android:name="com.rom1v.sndcpy.RecordService"
+            android:enabled="true"
+            android:exported="false"
+            android:foregroundServiceType="mediaProjection" />
+    </application>
+</manifest>
--- a/app/src/main/java/com/rom1v/sndcpy/MainActivity.java
+++ b/app/src/main/java/com/rom1v/sndcpy/MainActivity.java
@@ -0,0 +1,36 @@
+package com.rom1v.sndcpy;
+
+import android.Manifest;
+import android.app.Activity;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.media.projection.MediaProjectionManager;
+import android.os.Bundle;
+
+public class MainActivity extends Activity {
+
+    private static final int REQUEST_CODE_PERMISSION_AUDIO = 1;
+    private static final int REQUEST_CODE_START_CAPTURE = 2;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        if (checkSelfPermission(Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
+            String[] permissions = {Manifest.permission.RECORD_AUDIO};
+            requestPermissions(permissions, REQUEST_CODE_PERMISSION_AUDIO);
+        }
+
+        MediaProjectionManager mediaProjectionManager = (MediaProjectionManager) getSystemService(MEDIA_PROJECTION_SERVICE);
+        Intent intent = mediaProjectionManager.createScreenCaptureIntent();
+        startActivityForResult(intent, REQUEST_CODE_START_CAPTURE);
+    }
+
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent data) {
+        if (requestCode == REQUEST_CODE_START_CAPTURE && resultCode == Activity.RESULT_OK) {
+            RecordService.start(this, data);
+        }
+        finish();
+    }
+}
--- a/app/src/main/java/com/rom1v/sndcpy/RecordService.java
+++ b/app/src/main/java/com/rom1v/sndcpy/RecordService.java
@@ -0,0 +1,224 @@
+package com.rom1v.sndcpy;
+
+import android.app.Activity;
+import android.app.Notification;
+import android.app.NotificationChannel;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.app.Service;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.ServiceInfo;
+import android.graphics.drawable.Icon;
+import android.media.AudioAttributes;
+import android.media.AudioFormat;
+import android.media.AudioPlaybackCaptureConfiguration;
+import android.media.AudioRecord;
+import android.media.projection.MediaProjection;
+import android.media.projection.MediaProjectionManager;
+import android.net.LocalServerSocket;
+import android.net.LocalSocket;
+import android.os.Handler;
+import android.os.IBinder;
+import android.os.Message;
+import android.util.Log;
+
+import java.io.IOException;
+
+public class RecordService extends Service {
+
+    private static final String TAG = "sndcpy";
+    private static final String CHANNEL_ID = "sndcpy";
+    private static final int NOTIFICATION_ID = 1;
+
+    private static final String ACTION_RECORD = "com.rom1v.sndcpy.RECORD";
+    private static final String ACTION_STOP = "com.rom1v.sndcpy.STOP";
+    private static final String EXTRA_MEDIA_PROJECTION_DATA = "mediaProjectionData";
+
+    private static final int MSG_CONNECTION_ESTABLISHED = 1;
+
+    private static final String SOCKET_NAME = "sndcpy";
+
+
+    private static final int SAMPLE_RATE = 48000;
+    private static final int CHANNELS = 2;
+
+    private final Handler handler = new ConnectionHandler(this);
+    private MediaProjectionManager mediaProjectionManager;
+    private MediaProjection mediaProjection;
+    private Thread recorderThread;
+
+    public static void start(Context context, Intent data) {
+        Intent intent = new Intent(context, RecordService.class);
+        intent.setAction(ACTION_RECORD);
+        intent.putExtra(EXTRA_MEDIA_PROJECTION_DATA, data);
+        context.startForegroundService(intent);
+    }
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+
+        Notification notification = createNotification(false);
+
+        NotificationChannel channel = new NotificationChannel(CHANNEL_ID, getString(R.string.app_name), NotificationManager.IMPORTANCE_NONE);
+        getNotificationManager().createNotificationChannel(channel);
+
+        startForeground(NOTIFICATION_ID, notification, ServiceInfo.FOREGROUND_SERVICE_TYPE_MEDIA_PROJECTION);
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        String action = intent.getAction();
+        if (ACTION_STOP.equals(action)) {
+            stopSelf();
+            return START_NOT_STICKY;
+        }
+
+        if (isRunning()) {
+            return START_NOT_STICKY;
+        }
+
+        Intent data = intent.getParcelableExtra(EXTRA_MEDIA_PROJECTION_DATA);
+        mediaProjectionManager = (MediaProjectionManager) getSystemService(MEDIA_PROJECTION_SERVICE);
+        mediaProjection = mediaProjectionManager.getMediaProjection(Activity.RESULT_OK, data);
+        if (mediaProjection != null) {
+            startRecording();
+        } else {
+            Log.w(TAG, "Failed to capture audio");
+            stopSelf();
+        }
+        return START_NOT_STICKY;
+    }
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        return null;
+    }
+
+    private Notification createNotification(boolean established) {
+        Notification.Builder notificationBuilder = new Notification.Builder(this, CHANNEL_ID);
+        notificationBuilder.setContentTitle(getString(R.string.app_name));
+        int textRes = established ? R.string.notification_forwarding : R.string.notification_waiting;
+        notificationBuilder.setContentText(getText(textRes));
+        notificationBuilder.setSmallIcon(R.drawable.ic_album_black_24dp);
+        notificationBuilder.addAction(createStopAction());
+        return notificationBuilder.build();
+    }
+
+
+    private Intent createStopIntent() {
+        Intent intent = new Intent(this, RecordService.class);
+        intent.setAction(ACTION_STOP);
+        return intent;
+    }
+
+    private Notification.Action createStopAction() {
+        Intent stopIntent = createStopIntent();
+        PendingIntent stopPendingIntent = PendingIntent.getService(this, 0, stopIntent, PendingIntent.FLAG_ONE_SHOT);
+        Icon stopIcon = Icon.createWithResource(this, R.drawable.ic_close_24dp);
+        String stopString = getString(R.string.action_stop);
+        Notification.Action.Builder actionBuilder = new Notification.Action.Builder(stopIcon, stopString, stopPendingIntent);
+        return actionBuilder.build();
+    }
+
+    private static LocalSocket connect() throws IOException {
+        LocalServerSocket localServerSocket = new LocalServerSocket(SOCKET_NAME);
+        try {
+            return localServerSocket.accept();
+        } finally {
+            localServerSocket.close();
+        }
+    }
+
+    private static AudioPlaybackCaptureConfiguration createAudioPlaybackCaptureConfig(MediaProjection mediaProjection) {
+        AudioPlaybackCaptureConfiguration.Builder confBuilder = new AudioPlaybackCaptureConfiguration.Builder(mediaProjection);
+        confBuilder.addMatchingUsage(AudioAttributes.USAGE_MEDIA);
+        confBuilder.addMatchingUsage(AudioAttributes.USAGE_GAME);
+        confBuilder.addMatchingUsage(AudioAttributes.USAGE_UNKNOWN);
+        return confBuilder.build();
+    }
+
+    private static AudioFormat createAudioFormat() {
+        AudioFormat.Builder builder = new AudioFormat.Builder();
+        builder.setEncoding(AudioFormat.ENCODING_PCM_16BIT);
+        builder.setSampleRate(SAMPLE_RATE);
+        builder.setChannelMask(CHANNELS == 2 ? AudioFormat.CHANNEL_IN_STEREO : AudioFormat.CHANNEL_IN_MONO);
+        return builder.build();
+    }
+
+    private static AudioRecord createAudioRecord(MediaProjection mediaProjection) {
+        AudioRecord.Builder builder = new AudioRecord.Builder();
+        builder.setAudioFormat(createAudioFormat());
+        builder.setBufferSizeInBytes(1024 * 1024);
+        builder.setAudioPlaybackCaptureConfig(createAudioPlaybackCaptureConfig(mediaProjection));
+        return builder.build();
+    }
+
+    private void startRecording() {
+        final AudioRecord recorder = createAudioRecord(mediaProjection);
+
+        recorderThread = new Thread(new Runnable() {
+            @Override
+            public void run() {
+                try (LocalSocket socket = connect()) {
+                    handler.sendEmptyMessage(MSG_CONNECTION_ESTABLISHED);
+
+                    recorder.startRecording();
+                    int BUFFER_MS = 15; // do not buffer more than BUFFER_MS milliseconds
+                    byte[] buf = new byte[SAMPLE_RATE * CHANNELS * BUFFER_MS / 1000];
+                    while (true) {
+                        int r = recorder.read(buf, 0, buf.length);
+                        socket.getOutputStream().write(buf, 0, r);
+                    }
+                } catch (IOException e) {
+                    // ignore
+                } finally {
+                    recorder.stop();
+                    stopSelf();
+                }
+            }
+        });
+        recorderThread.start();
+    }
+
+    private boolean isRunning() {
+        return recorderThread != null;
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        stopForeground(true);
+        if (recorderThread != null) {
+            recorderThread.interrupt();
+            recorderThread = null;
+        }
+    }
+
+    private NotificationManager getNotificationManager() {
+        return (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
+    }
+
+    private static final class ConnectionHandler extends Handler {
+
+        private RecordService service;
+
+        ConnectionHandler(RecordService service) {
+            this.service = service;
+        }
+
+        @Override
+        public void handleMessage(Message message) {
+            if (!service.isRunning()) {
+                // if the VPN is not running anymore, ignore obsolete events
+                return;
+            }
+
+            if (message.what == MSG_CONNECTION_ESTABLISHED) {
+                Notification notification = service.createNotification(true);
+                service.getNotificationManager().notify(NOTIFICATION_ID, notification);
+            }
+        }
+    }
+}
--- a/app/src/main/res/drawable/ic_album_black_24dp.xml
+++ b/app/src/main/res/drawable/ic_album_black_24dp.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM12,16.5c-2.49,0 -4.5,-2.01 -4.5,-4.5S9.51,7.5 12,7.5s4.5,2.01 4.5,4.5 -2.01,4.5 -4.5,4.5zM12,11c-0.55,0 -1,0.45 -1,1s0.45,1 1,1 1,-0.45 1,-1 -0.45,-1 -1,-1z"/>
+</vector>
--- a/app/src/main/res/drawable/ic_close_24dp.xml
+++ b/app/src/main/res/drawable/ic_close_24dp.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FFFFFFFF"
+        android:pathData="M19,6.41L17.59,5 12,10.59 6.41,5 5,6.41 10.59,12 5,17.59 6.41,19 12,13.41 17.59,19 19,17.59 13.41,12z"/>
+</vector>
--- a/app/src/main/res/drawable/ic_launcher_background.xml
+++ b/app/src/main/res/drawable/ic_launcher_background.xml
@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>
--- a/app/src/main/res/drawable/ic_launcher_foreground.xml
+++ b/app/src/main/res/drawable/ic_launcher_foreground.xml
@@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>
--- a/app/src/main/res/mipmap-anydpi/ic_launcher.xml
+++ b/app/src/main/res/mipmap-anydpi/ic_launcher.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/app/src/main/res/mipmap-anydpi/ic_launcher_round.xml
+++ b/app/src/main/res/mipmap-anydpi/ic_launcher_round.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/app/src/main/res/mipmap-hdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
--- a/app/src/main/res/mipmap-mdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -0,0 +1,6 @@
+<resources>
+    <string name="app_name">sndcpy</string>
+    <string name="notification_waiting">Waiting for connection…</string>
+    <string name="notification_forwarding">Audio forwarding enabled</string>
+    <string name="action_stop">Stop</string>
+</resources>
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -0,0 +1,12 @@
+<resources>
+
+    <style name="Theme.Transparent" parent="android:Theme">
+        <item name="android:windowIsTranslucent">true</item>
+        <item name="android:windowBackground">@android:color/transparent</item>
+        <item name="android:windowContentOverlay">@null</item>
+        <item name="android:windowNoTitle">true</item>
+        <item name="android:windowIsFloating">true</item>
+        <item name="android:backgroundDimEnabled">false</item>
+    </style>
+
+</resources>
--- a/assets/request.png
+++ b/assets/request.png
--- a/build.gradle
+++ b/build.gradle
@@ -0,0 +1,25 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    repositories {
+        google()
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.6.2'
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
--- a/gradle.properties
+++ b/gradle.properties
@@ -0,0 +1,19 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx1536m
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app's APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Automatically convert third-party libraries to use AndroidX
+android.enableJetifier=true
--- a/gradle/wrapper/gradle-wrapper.jar
+++ b/gradle/wrapper/gradle-wrapper.jar
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Mon Jun 08 22:54:59 CEST 2020
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.4-all.zip
--- a/172
+++ b/172
@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
--- a/release.sh
+++ b/release.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+VERSION=$(git describe --tags --always)
+rm -rf dist
+./gradlew assembleRelease
+mkdir dist
+cd dist
+cp ../app/build/outputs/apk/release/app-release.apk sndcpy.apk
+cp ../sndcpy .
+cp ../sndcpy.bat .
+zip sndcpy-"$VERSION".zip sndcpy.apk sndcpy sndcpy.bat
--- a/4
+++ b/4
@@ -0,0 +1,4 @@
+#!/bin/bash
+set -e
+./gradlew assembleDebug
+SNDCPY_APK=app/build/outputs/apk/debug/app-debug.apk ./sndcpy "$@"
--- a/settings.gradle
+++ b/settings.gradle
@@ -0,0 +1,2 @@
+rootProject.name='sndcpy'
+include ':app'
--- a/29
+++ b/29
@@ -0,0 +1,29 @@
+#!/bin/bash
+set -e
+ADB=${ADB:-adb}
+VLC=${VLC:-vlc}
+SNDCPY_APK=${SNDCPY_APK:-sndcpy.apk}
+SNDCPY_PORT=${SNDCPY_PORT:-28200}
+
+serial=
+if [[ $# -ge 1 ]]
+then
+    serial="-s $1"
+    echo "Waiting for device $1..."
+else
+    echo 'Waiting for device...'
+fi
+
+"$ADB" $serial wait-for-device
+"$ADB" $serial install -t -r -g "$SNDCPY_APK" ||
+{
+    echo 'Uninstalling existing version first...'
+    "$ADB" $serial uninstall com.rom1v.sndcpy
+    "$ADB" $serial install -t -g "$SNDCPY_APK"
+}
+
+"$ADB" $serial forward tcp:$SNDCPY_PORT localabstract:sndcpy
+"$ADB" $serial shell am start com.rom1v.sndcpy/.MainActivity
+echo "Press Enter once audio capture is authorized on the device to start playing..."
+read dummy
+"$VLC" -Idummy --demux rawaud --network-caching=50 --play-and-exit tcp://localhost:"$SNDCPY_PORT"
--- a/sndcpy.bat
+++ b/sndcpy.bat
@@ -0,0 +1,31 @@
+@echo off
+if not defined ADB set ADB=adb
+if not defined VLC set VLC="C:\Program Files\VideoLAN\VLC\vlc.exe"
+if not defined SNDCPY_APK set SNDCPY_APK=sndcpy.apk
+if not defined SNDCPY_PORT set SNDCPY_PORT=28200
+
+if not "%1"=="" (
+    set serial=-s %1
+    echo Waiting for device %1...
+) else (
+    echo Waiting for device...
+)
+
+%ADB% %serial% wait-for-device || goto :error
+%ADB% %serial% install -t -r -g %SNDCPY_APK% || (
+    echo Uninstalling existing version first...
+    %ADB% %serial% uninstall com.rom1v.sndcpy || goto :error
+    %ADB% %serial% install -t -g %SNDCPY_APK% || goto :error
+)
+%ADB% %serial% forward tcp:%SNDCPY_PORT% localabstract:sndcpy || goto :error
+%ADB% %serial% shell am start com.rom1v.sndcpy/.MainActivity || goto :error
+echo Press Enter once audio capture is authorized on the device to start playing...
+pause >nul
+echo Playing audio...
+%VLC% -Idummy --demux rawaud --network-caching=50 --play-and-exit tcp://localhost:%SNDCPY_PORT%
+goto :EOF
+
+:error
+echo Failed with error #%errorlevel%.
+pause
+exit /b %errorlevel%