adding packages

deprecated/flutter_midi/.gitattributes

@@ -0,0 +1,2 @@
+# Auto detect text files and perform LF normalization
+* text=auto

deprecated/flutter_midi/.github/workflows/main.yml

@@ -0,0 +1,30 @@
+name: github pages
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  deploy:
+    runs-on: ubuntu-18.04
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Setup Flutter
+        uses: subosito/flutter-action@v1
+        with:
+          channel: 'dev'
+
+      - name: Install
+        run: |
+          flutter config --enable-web
+          flutter pub get
+      - name: Build
+        run: cd example && flutter build web
+
+      - name: Deploy
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./example/build/web

deprecated/flutter_midi/.gitignore

@@ -0,0 +1,8 @@
+.DS_Store
+.dart_tool/
+
+.packages
+.pub/
+pubspec.lock
+
+build/

deprecated/flutter_midi/.metadata

@@ -0,0 +1,10 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: ec1044a8773e31b4630bf162d9c374236ad1eaaf
+  channel: master
+
+project_type: plugin

deprecated/flutter_midi/.vscode/launch.json

@@ -0,0 +1,14 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Flutter",
+            "request": "launch",
+            "type": "dart",
+            "program": "example/lib/main.dart"
+        }
+    ]
+}

deprecated/flutter_midi/CHANGELOG.md

@@ -0,0 +1,47 @@
+## 1.1.0
+
+* Null Safety
+
+## 1.0.2
+
+*  Updating Version
+
+## 1.0.1
+
+* Bumping Version
+* Adding Web Example
+* Adding Online Demo
+
+## 1.0.0 - 05.04.2019
+
+* Support for Desktop (Path Only)
+
+## 0.2.0 - 04.06.2019
+
+* Updating Example to be desktop aware
+
+## 0.1.1
+
+* Added Ability to Change .sf2 File Being Played
+* Updated Example
+
+## 0.1.0
+
+* Removed Need to Bundle .sf2 on iOS
+* Added .sf2 Support for Android
+* Added Ability to Cancel any note for true polyphony
+* Updated Example
+* Changed way SoundFont is Loaded (From Asset Folder)
+
+## 0.0.4
+
+* Fixing Android Bug
+* Added Midi to Android
+
+## 0.0.2
+
+* Optional force unmute
+
+## 0.0.1
+
+* Added Midi for iOS.

deprecated/flutter_midi/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020 Rody Davis
+
+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.

deprecated/flutter_midi/README.md

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+[![Buy Me A Coffee](https://img.shields.io/badge/Donate-Buy%20Me%20A%20Coffee-yellow.svg)](https://www.buymeacoffee.com/rodydavis)
+[![Donate](https://img.shields.io/badge/Donate-PayPal-green.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=WSH3GVC49GNNJ)
+![github pages](https://github.com/rodydavis/flutter_midi/workflows/github%20pages/badge.svg)
+[![GitHub stars](https://img.shields.io/github/stars/rodydavis/flutter_midi?color=blue)](https://github.com/rodydavis/flutter_midi)
+[![flutter_midi](https://img.shields.io/pub/v/flutter_midi.svg)](https://pub.dev/packages/flutter_midi)
+
+# flutter_midi
+
+A FLutter Plugin to Play midi on iOS and Android. This uses SoundFont (.sf2) Files.
+
+Online Demo: https://rodydavis.github.io/flutter_midi/
+
+## Installation
+
+Download a any sound font file, example: `sound_font.SF2` file.
+
+Create an /assets folder and store the .sf2 files
+
+Update pubspec.yaml
+
+``` ruby
+assets:
+   - assets/sf2/Piano.SF2
+   - assets/sf2/SmallTimGM6mb.sf2
+```
+ 
+Load the sound font to prepare to play;
+
+```dart
+ @override
+  void initState() {
+    load('assets/sf2/Piano.SF2');
+    super.initState();
+  }
+  
+ void load(String asset) async {
+    FlutterMidi.unmute(); // Optionally Unmute
+    ByteData _byte = await rootBundle.load(asset);
+    FlutterMidi.prepare(sf2: _byte);
+  }
+```
+
+Play and Stop the Midi Notes
+
+```dart
+ FlutterMidi.playMidiNote(midi: 60);
+ FlutterMidi.playMidiNote(midi: 60, velocity: 120);
+
+ FlutterMidi.stopMidiNote(midi: 60);
+ FlutterMidi.stopMidiNote(midi: 60, velocity: 120);
+```

deprecated/flutter_midi/android/.gitignore

@@ -0,0 +1,8 @@
+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures

deprecated/flutter_midi/android/build.gradle

@@ -0,0 +1,41 @@
+group 'com.appleeducate.fluttermidi'
+version '1.0-SNAPSHOT'
+
+buildscript {
+    repositories {
+        google()
+        jcenter()
+        maven { url "https://jitpack.io" }
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.2.1'
+    }
+}
+
+rootProject.allprojects {
+    repositories {
+        google()
+        jcenter()
+        maven { url "https://jitpack.io" }
+    }
+}
+
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 28
+
+    defaultConfig {
+        minSdkVersion 16
+        targetSdkVersion 28
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+}
+
+dependencies {
+    implementation 'com.github.appleeducate:MidiDriver-Android-SF2:1.0'
+}

deprecated/flutter_midi/android/gradle.properties

@@ -0,0 +1 @@
+org.gradle.jvmargs=-Xmx1536M

deprecated/flutter_midi/android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

deprecated/flutter_midi/android/gradlew

@@ -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" "$@"

deprecated/flutter_midi/android/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

deprecated/flutter_midi/android/settings.gradle

@@ -0,0 +1 @@
+rootProject.name = 'flutter_midi'

deprecated/flutter_midi/android/src/main/AndroidManifest.xml

@@ -0,0 +1,3 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="com.appleeducate.fluttermidi">
+</manifest>

deprecated/flutter_midi/android/src/main/java/com/appleeducate/fluttermidi/FlutterMidiPlugin.java

@@ -0,0 +1,118 @@
+package com.appleeducate.fluttermidi;
+
+import android.content.Context;
+import cn.sherlock.com.sun.media.sound.SF2Soundbank;
+import cn.sherlock.com.sun.media.sound.SoftSynthesizer;
+import io.flutter.embedding.engine.plugins.FlutterPlugin;
+import io.flutter.plugin.common.MethodCall;
+import io.flutter.plugin.common.MethodChannel;
+import io.flutter.plugin.common.MethodChannel.MethodCallHandler;
+import io.flutter.plugin.common.MethodChannel.Result;
+import io.flutter.plugin.common.PluginRegistry.Registrar;
+import io.flutter.plugin.common.BinaryMessenger;
+import java.io.File;
+import java.io.IOException;
+import jp.kshoji.javax.sound.midi.InvalidMidiDataException;
+import jp.kshoji.javax.sound.midi.MidiUnavailableException;
+import jp.kshoji.javax.sound.midi.Receiver;
+import jp.kshoji.javax.sound.midi.ShortMessage;
+
+/** FlutterMidiPlugin */
+public class FlutterMidiPlugin implements MethodCallHandler, FlutterPlugin {
+  private SoftSynthesizer synth;
+  private Receiver recv;
+  private MethodChannel methodChannel;
+  private Context applicationContext;
+
+  /** Plugin registration. */
+  @SuppressWarnings("deprecation")
+  public static void registerWith(Registrar registrar) {
+    final FlutterMidiPlugin instance = new FlutterMidiPlugin();
+    instance.onAttachedToEngine(registrar.context(), registrar.messenger());
+  }
+
+  @Override
+  public void onAttachedToEngine(FlutterPluginBinding binding) {
+    onAttachedToEngine(binding.getApplicationContext(), binding.getBinaryMessenger());
+  }
+
+  /*
+    "Also, note that the plugin should still contain the static registerWith() method 
+    to remain compatible with apps that don’t use the v2 Android embedding. 
+    (See Upgrading pre 1.12 Android projects for details.) The easiest thing to 
+    do (if possible) is move the logic from registerWith() into a private method that 
+    both registerWith() and onAttachedToEngine() can call. Either registerWith() or 
+    onAttachedToEngine() will be called, not both."
+
+    - https://flutter.dev/docs/development/packages-and-plugins/plugin-api-migration
+  */
+  private void onAttachedToEngine(Context applicationContext, BinaryMessenger messenger) {
+    methodChannel = new MethodChannel(messenger, "flutter_midi");
+    methodChannel.setMethodCallHandler(new FlutterMidiPlugin());
+  }
+
+  @Override
+  public void onDetachedFromEngine(FlutterPluginBinding binding) {
+    applicationContext = null;
+    methodChannel.setMethodCallHandler(null);
+    methodChannel = null;
+  }
+
+  @Override
+  public void onMethodCall(MethodCall call, Result result) {
+    if (call.method.equals("prepare_midi")) {
+      try {
+        String _path = call.argument("path");
+        File _file = new File(_path);
+        SF2Soundbank sf = new SF2Soundbank(_file);
+        synth = new SoftSynthesizer();
+        synth.open();
+        synth.loadAllInstruments(sf);
+        synth.getChannels()[0].programChange(0);
+        synth.getChannels()[1].programChange(1);
+        recv = synth.getReceiver();
+      } catch (IOException e) {
+        e.printStackTrace();
+      } catch (MidiUnavailableException e) {
+        e.printStackTrace();
+      }
+    } else if (call.method.equals("change_sound")) {
+      try {
+        String _path = call.argument("path");
+        File _file = new File(_path);
+        SF2Soundbank sf = new SF2Soundbank(_file);
+        synth = new SoftSynthesizer();
+        synth.open();
+        synth.loadAllInstruments(sf);
+        synth.getChannels()[0].programChange(0);
+        synth.getChannels()[1].programChange(1);
+        recv = synth.getReceiver();
+      } catch (IOException e) {
+        e.printStackTrace();
+      } catch (MidiUnavailableException e) {
+        e.printStackTrace();
+      }
+    } else if (call.method.equals("play_midi_note")) {
+      int _note = call.argument("note");
+      int _velocity = call.argument("velocity");
+      try {
+        ShortMessage msg = new ShortMessage();
+        msg.setMessage(ShortMessage.NOTE_ON, 0, _note, _velocity);
+        recv.send(msg, -1);
+      } catch (InvalidMidiDataException e) {
+        e.printStackTrace();
+      }
+    } else if (call.method.equals("stop_midi_note")) {
+      int _note = call.argument("note");
+      int _velocity = call.argument("velocity");
+      try {
+        ShortMessage msg = new ShortMessage();
+        msg.setMessage(ShortMessage.NOTE_OFF, 0, _note, _velocity);
+        recv.send(msg, -1);
+      } catch (InvalidMidiDataException e) {
+        e.printStackTrace();
+      }
+    } else {
+    }
+  }
+}

deprecated/flutter_midi/example/.gitignore

@@ -0,0 +1,46 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.packages
+.pub-cache/
+.pub/
+/build/
+
+# Web related
+lib/generated_plugin_registrant.dart
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release

deprecated/flutter_midi/example/.metadata

@@ -0,0 +1,10 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: 77512a3c46ec447cc64bac959e3043c2f0bdd446
+  channel: master
+
+project_type: app

deprecated/flutter_midi/example/README.md

@@ -0,0 +1,16 @@
+# flutter_midi_example
+
+Demonstrates how to use the flutter_midi plugin.
+
+## Getting Started
+
+This project is a starting point for a Flutter application.
+
+A few resources to get you started if this is your first Flutter project:
+
+- [Lab: Write your first Flutter app](https://flutter.io/docs/get-started/codelab)
+- [Cookbook: Useful Flutter samples](https://flutter.io/docs/cookbook)
+
+For help getting started with Flutter, view our 
+[online documentation](https://flutter.io/docs), which offers tutorials, 
+samples, guidance on mobile development, and a full API reference.

deprecated/flutter_midi/example/android/.gitignore

@@ -0,0 +1,7 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java

deprecated/flutter_midi/example/android/app/build.gradle

@@ -0,0 +1,67 @@
+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withReader('UTF-8') { reader ->
+        localProperties.load(reader)
+    }
+}
+
+def flutterRoot = localProperties.getProperty('flutter.sdk')
+if (flutterRoot == null) {
+    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+}
+
+def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
+if (flutterVersionCode == null) {
+    flutterVersionCode = '1'
+}
+
+def flutterVersionName = localProperties.getProperty('flutter.versionName')
+if (flutterVersionName == null) {
+    flutterVersionName = '1.0'
+}
+
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+    compileSdkVersion 28
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
+
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+
+    defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId "com.example.example"
+        minSdkVersion 16
+        targetSdkVersion 28
+        versionCode flutterVersionCode.toInteger()
+        versionName flutterVersionName
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig signingConfigs.debug
+        }
+    }
+}
+
+flutter {
+    source '../..'
+}
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test:runner:1.1.1'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
+}

deprecated/flutter_midi/example/android/app/src/debug/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.example">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

deprecated/flutter_midi/example/android/app/src/main/AndroidManifest.xml

@@ -0,0 +1,30 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.example">
+    <!-- io.flutter.app.FlutterApplication is an android.app.Application that
+         calls FlutterMain.startInitialization(this); in its onCreate method.
+         In most cases you can leave this as-is, but you if you want to provide
+         additional functionality it is fine to subclass or reimplement
+         FlutterApplication and put your custom class here. -->
+    <application
+        android:name="io.flutter.app.FlutterApplication"
+        android:label="example"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name="io.flutter.embedding.android.FlutterActivity"
+            android:launchMode="singleTop"
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
+    </application>
+</manifest>

deprecated/flutter_midi/example/android/app/src/main/res/drawable/launch_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

deprecated/flutter_midi/example/android/app/src/main/res/values/styles.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+</resources>

deprecated/flutter_midi/example/android/app/src/profile/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.example">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

deprecated/flutter_midi/example/android/build.gradle

@@ -0,0 +1,31 @@
+buildscript {
+    ext.kotlin_version = '1.3.50'
+    repositories {
+        google()
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.5.0'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+rootProject.buildDir = '../build'
+subprojects {
+    project.buildDir = "${rootProject.buildDir}/${project.name}"
+}
+subprojects {
+    project.evaluationDependsOn(':app')
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

deprecated/flutter_midi/example/android/gradle.properties

@@ -0,0 +1,4 @@
+org.gradle.jvmargs=-Xmx1536M
+android.enableR8=true
+android.useAndroidX=true
+android.enableJetifier=true

deprecated/flutter_midi/example/android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Fri Jun 23 08:50:38 CEST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip

deprecated/flutter_midi/example/android/settings.gradle

@@ -0,0 +1,15 @@
+include ':app'
+
+def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+
+def plugins = new Properties()
+def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+if (pluginsFile.exists()) {
+    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
+}
+
+plugins.each { name, path ->
+    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+    include ":$name"
+    project(":$name").projectDir = pluginDirectory
+}

deprecated/flutter_midi/example/ios/.gitignore

@@ -0,0 +1,33 @@
+*.mode1v3
+*.mode2v3
+*.moved-aside
+*.pbxuser
+*.perspectivev3
+**/*sync/
+.sconsign.dblite
+.tags*
+**/.vagrant/
+**/DerivedData/
+Icon?
+**/Pods/
+**/.symlinks/
+profile
+xcuserdata
+**/.generated/
+Flutter/App.framework
+Flutter/Flutter.framework
+Flutter/Flutter.podspec
+Flutter/Generated.xcconfig
+Flutter/ephemeral/
+Flutter/app.flx
+Flutter/app.zip
+Flutter/flutter_assets/
+Flutter/flutter_export_environment.sh
+ServiceDefinitions.json
+Runner/GeneratedPluginRegistrant.*
+
+# Exceptions to above rules.
+!default.mode1v3
+!default.mode2v3
+!default.pbxuser
+!default.perspectivev3

deprecated/flutter_midi/example/ios/Flutter/AppFrameworkInfo.plist

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+  <key>CFBundleDevelopmentRegion</key>
+  <string>$(DEVELOPMENT_LANGUAGE)</string>
+  <key>CFBundleExecutable</key>
+  <string>App</string>
+  <key>CFBundleIdentifier</key>
+  <string>io.flutter.flutter.app</string>
+  <key>CFBundleInfoDictionaryVersion</key>
+  <string>6.0</string>
+  <key>CFBundleName</key>
+  <string>App</string>
+  <key>CFBundlePackageType</key>
+  <string>FMWK</string>
+  <key>CFBundleShortVersionString</key>
+  <string>1.0</string>
+  <key>CFBundleSignature</key>
+  <string>????</string>
+  <key>CFBundleVersion</key>
+  <string>1.0</string>
+  <key>MinimumOSVersion</key>
+  <string>8.0</string>
+</dict>
+</plist>

deprecated/flutter_midi/example/ios/Flutter/Debug.xcconfig

@@ -0,0 +1,2 @@
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
+#include "Generated.xcconfig"

deprecated/flutter_midi/example/ios/Flutter/Release.xcconfig

@@ -0,0 +1,2 @@
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
+#include "Generated.xcconfig"

deprecated/flutter_midi/example/ios/Podfile

@@ -0,0 +1,41 @@
+# Uncomment this line to define a global platform for your project
+# platform :ios, '9.0'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def flutter_root
+  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
+  unless File.exist?(generated_xcode_build_settings_path)
+    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure flutter pub get is executed first"
+  end
+
+  File.foreach(generated_xcode_build_settings_path) do |line|
+    matches = line.match(/FLUTTER_ROOT\=(.*)/)
+    return matches[1].strip if matches
+  end
+  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Generated.xcconfig, then run flutter pub get"
+end
+
+require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
+
+flutter_ios_podfile_setup
+
+target 'Runner' do
+  use_frameworks!
+  use_modular_headers!
+
+  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    flutter_additional_ios_build_settings(target)
+  end
+end

deprecated/flutter_midi/example/ios/Podfile.lock

@@ -0,0 +1,28 @@
+PODS:
+  - Flutter (1.0.0)
+  - flutter_midi (0.0.1):
+    - Flutter
+  - path_provider (0.0.1):
+    - Flutter
+
+DEPENDENCIES:
+  - Flutter (from `Flutter`)
+  - flutter_midi (from `.symlinks/plugins/flutter_midi/ios`)
+  - path_provider (from `.symlinks/plugins/path_provider/ios`)
+
+EXTERNAL SOURCES:
+  Flutter:
+    :path: Flutter
+  flutter_midi:
+    :path: ".symlinks/plugins/flutter_midi/ios"
+  path_provider:
+    :path: ".symlinks/plugins/path_provider/ios"
+
+SPEC CHECKSUMS:
+  Flutter: 434fef37c0980e73bb6479ef766c45957d4b510c
+  flutter_midi: 4fe7280cf156c668fe92445f384b1bc440473cdb
+  path_provider: abfe2b5c733d04e238b0d8691db0cfd63a27a93c
+
+PODFILE CHECKSUM: aafe91acc616949ddb318b77800a7f51bffa2a4c
+
+COCOAPODS: 1.10.1

deprecated/flutter_midi/example/ios/Runner.xcodeproj/project.pbxproj

@@ -0,0 +1,574 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 46;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */ = {isa = PBXBuildFile; fileRef = 1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */; };
+		3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */; };
+		74858FAF1ED2DC5600515810 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 74858FAE1ED2DC5600515810 /* AppDelegate.swift */; };
+		8A223C5FBD986B4897047BE9 /* Pods_Runner.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 3C4129DF1B02405D977FDC10 /* Pods_Runner.framework */; };
+		97C146FC1CF9000F007C117D /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FA1CF9000F007C117D /* Main.storyboard */; };
+		97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FD1CF9000F007C117D /* Assets.xcassets */; };
+		97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXCopyFilesBuildPhase section */
+		9705A1C41CF9048500538489 /* Embed Frameworks */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "";
+			dstSubfolderSpec = 10;
+			files = (
+			);
+			name = "Embed Frameworks";
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXCopyFilesBuildPhase section */
+
+/* Begin PBXFileReference section */
+		1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = GeneratedPluginRegistrant.h; sourceTree = "<group>"; };
+		1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GeneratedPluginRegistrant.m; sourceTree = "<group>"; };
+		1EF6E390822A969C1BAF1720 /* Pods-Runner.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.release.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"; sourceTree = "<group>"; };
+		2CF6BF108CE97D3FF0E4074B /* Pods-Runner.profile.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.profile.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.profile.xcconfig"; sourceTree = "<group>"; };
+		3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
+		3C4129DF1B02405D977FDC10 /* Pods_Runner.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_Runner.framework; sourceTree = BUILT_PRODUCTS_DIR; };
+		74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "Runner-Bridging-Header.h"; sourceTree = "<group>"; };
+		74858FAE1ED2DC5600515810 /* AppDelegate.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = Release.xcconfig; path = Flutter/Release.xcconfig; sourceTree = "<group>"; };
+		9740EEB21CF90195004384FC /* Debug.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Debug.xcconfig; path = Flutter/Debug.xcconfig; sourceTree = "<group>"; };
+		9740EEB31CF90195004384FC /* Generated.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Generated.xcconfig; path = Flutter/Generated.xcconfig; sourceTree = "<group>"; };
+		97C146EE1CF9000F007C117D /* Runner.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Runner.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		97C146FB1CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		97C146FD1CF9000F007C117D /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		97C147001CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		97C147021CF9000F007C117D /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		BB1303FE7A4C9273741A7E58 /* Pods-Runner.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.debug.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		97C146EB1CF9000F007C117D /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				8A223C5FBD986B4897047BE9 /* Pods_Runner.framework in Frameworks */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		3D90B1142E53436247B8920F /* Frameworks */ = {
+			isa = PBXGroup;
+			children = (
+				3C4129DF1B02405D977FDC10 /* Pods_Runner.framework */,
+			);
+			name = Frameworks;
+			sourceTree = "<group>";
+		};
+		6FCF25D4796CC565F56692C5 /* Pods */ = {
+			isa = PBXGroup;
+			children = (
+				BB1303FE7A4C9273741A7E58 /* Pods-Runner.debug.xcconfig */,
+				1EF6E390822A969C1BAF1720 /* Pods-Runner.release.xcconfig */,
+				2CF6BF108CE97D3FF0E4074B /* Pods-Runner.profile.xcconfig */,
+			);
+			name = Pods;
+			path = Pods;
+			sourceTree = "<group>";
+		};
+		9740EEB11CF90186004384FC /* Flutter */ = {
+			isa = PBXGroup;
+			children = (
+				3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */,
+				9740EEB21CF90195004384FC /* Debug.xcconfig */,
+				7AFA3C8E1D35360C0083082E /* Release.xcconfig */,
+				9740EEB31CF90195004384FC /* Generated.xcconfig */,
+			);
+			name = Flutter;
+			sourceTree = "<group>";
+		};
+		97C146E51CF9000F007C117D = {
+			isa = PBXGroup;
+			children = (
+				9740EEB11CF90186004384FC /* Flutter */,
+				97C146F01CF9000F007C117D /* Runner */,
+				97C146EF1CF9000F007C117D /* Products */,
+				6FCF25D4796CC565F56692C5 /* Pods */,
+				3D90B1142E53436247B8920F /* Frameworks */,
+			);
+			sourceTree = "<group>";
+		};
+		97C146EF1CF9000F007C117D /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				97C146EE1CF9000F007C117D /* Runner.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		97C146F01CF9000F007C117D /* Runner */ = {
+			isa = PBXGroup;
+			children = (
+				97C146FA1CF9000F007C117D /* Main.storyboard */,
+				97C146FD1CF9000F007C117D /* Assets.xcassets */,
+				97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */,
+				97C147021CF9000F007C117D /* Info.plist */,
+				97C146F11CF9000F007C117D /* Supporting Files */,
+				1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */,
+				1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */,
+				74858FAE1ED2DC5600515810 /* AppDelegate.swift */,
+				74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */,
+			);
+			path = Runner;
+			sourceTree = "<group>";
+		};
+		97C146F11CF9000F007C117D /* Supporting Files */ = {
+			isa = PBXGroup;
+			children = (
+			);
+			name = "Supporting Files";
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		97C146ED1CF9000F007C117D /* Runner */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 97C147051CF9000F007C117D /* Build configuration list for PBXNativeTarget "Runner" */;
+			buildPhases = (
+				5B0119F1E58B7269472310B0 /* [CP] Check Pods Manifest.lock */,
+				9740EEB61CF901F6004384FC /* Run Script */,
+				97C146EA1CF9000F007C117D /* Sources */,
+				97C146EB1CF9000F007C117D /* Frameworks */,
+				97C146EC1CF9000F007C117D /* Resources */,
+				9705A1C41CF9048500538489 /* Embed Frameworks */,
+				3B06AD1E1E4923F5004D2608 /* Thin Binary */,
+				889DE4B16C1F671D4DDCC694 /* [CP] Embed Pods Frameworks */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = Runner;
+			productName = Runner;
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+}

deprecated/flutter_midi/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:">
+   </FileRef>
+</Workspace>

deprecated/flutter_midi/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme

@@ -0,0 +1,91 @@
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+<Scheme
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+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+               BuildableName = "Runner.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Profile"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

deprecated/flutter_midi/example/ios/Runner.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+   <FileRef
+      location = "group:Pods/Pods.xcodeproj">
+   </FileRef>
+</Workspace>

deprecated/flutter_midi/example/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

deprecated/flutter_midi/example/ios/Runner/AppDelegate.swift

@@ -0,0 +1,13 @@
+import UIKit
+import Flutter
+
+@UIApplicationMain
+@objc class AppDelegate: FlutterAppDelegate {
+  override func application(
+    _ application: UIApplication,
+    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
+  ) -> Bool {
+    GeneratedPluginRegistrant.register(with: self)
+    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
+  }
+}

deprecated/flutter_midi/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,122 @@
+{
+  "images" : [
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "83.5x83.5",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-83.5x83.5@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "Icon-App-1024x1024@1x.png",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

deprecated/flutter_midi/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json

@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

deprecated/flutter_midi/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md

@@ -0,0 +1,5 @@
+# Launch Screen Assets
+
+You can customize the launch screen with your own desired assets by replacing the image files in this directory.
+
+You can also do it by opening your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images.

deprecated/flutter_midi/example/ios/Runner/Base.lproj/LaunchScreen.storyboard

@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12121" systemVersion="16G29" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12089"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="Ydg-fD-yQy"/>
+                        <viewControllerLayoutGuide type="bottom" id="xbc-2k-c8Z"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
+                            </imageView>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>
+                        </constraints>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="LaunchImage" width="168" height="185"/>
+    </resources>
+</document>

deprecated/flutter_midi/example/ios/Runner/Base.lproj/Main.storyboard

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
+    </dependencies>
+    <scenes>
+        <!--Flutter View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="FlutterViewController" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
+                        <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+</document>

deprecated/flutter_midi/example/ios/Runner/Info.plist

@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>example</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(FLUTTER_BUILD_NAME)</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UIViewControllerBasedStatusBarAppearance</key>
+	<false/>
+</dict>
+</plist>

deprecated/flutter_midi/example/ios/Runner/Runner-Bridging-Header.h

@@ -0,0 +1 @@
+#import "GeneratedPluginRegistrant.h"

deprecated/flutter_midi/example/lib/main.dart

@@ -0,0 +1,88 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_midi/flutter_midi.dart';
+import 'package:flutter/foundation.dart';
+
+void main() => runApp(MyApp());
+
+class MyApp extends StatefulWidget {
+  @override
+  _MyAppState createState() => _MyAppState();
+}
+
+class _MyAppState extends State<MyApp> {
+  final _flutterMidi = FlutterMidi();
+  @override
+  void initState() {
+    if (!kIsWeb) {
+      load(_value);
+    } else {
+      _flutterMidi.prepare(sf2: null);
+    }
+    super.initState();
+  }
+
+  void load(String asset) async {
+    print('Loading File...');
+    _flutterMidi.unmute();
+    ByteData _byte = await rootBundle.load(asset);
+    //assets/sf2/SmallTimGM6mb.sf2
+    //assets/sf2/Piano.SF2
+    _flutterMidi.prepare(sf2: _byte, name: _value.replaceAll('assets/', ''));
+  }
+
+  String _value = 'assets/Piano.sf2';
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      debugShowCheckedModeBanner: false,
+      home: Scaffold(
+        appBar: AppBar(
+          title: const Text('Plugin example app'),
+        ),
+        body: Center(
+            child: Column(
+          crossAxisAlignment: CrossAxisAlignment.center,
+          mainAxisSize: MainAxisSize.min,
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: <Widget>[
+            // DropdownButton<String>(
+            //   value: _value,
+            //   items: [
+            //     DropdownMenuItem(
+            //       child: Text("Soft Piano"),
+            //       value: "assets/sf2/SmallTimGM6mb.sf2",
+            //     ),
+            //     DropdownMenuItem(
+            //       child: Text("Loud Piano"),
+            //       value: "assets/sf2/Piano.SF2",
+            //     ),
+            //   ],
+            //   onChanged: (String value) {
+            //     setState(() {
+            //       _value = value;
+            //     });
+            //     load(_value);
+            //   },
+            // ),
+            ElevatedButton(
+              child: Text('Play C'),
+              onPressed: () {
+                _play(60);
+              },
+            ),
+          ],
+        )),
+      ),
+    );
+  }
+
+  void _play(int midi) {
+    if (kIsWeb) {
+      // WebMidi.play(midi);
+    } else {
+      _flutterMidi.playMidiNote(midi: midi);
+    }
+  }
+}

deprecated/flutter_midi/example/pubspec.yaml

@@ -0,0 +1,22 @@
+name: flutter_midi_example
+description: Demonstrates how to use the flutter_midi plugin.
+publish_to: 'none'
+
+environment:
+  sdk: ">=2.12.0 <3.0.0"
+
+dependencies:
+  flutter:
+    sdk: flutter
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+  flutter_midi:
+    path: ..
+
+flutter:
+  uses-material-design: true
+  assets:
+    - assets/
+

deprecated/flutter_midi/example/web/index.html

@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="UTF-8" />
+    <meta content="IE=Edge" http-equiv="X-UA-Compatible" />
+    <meta name="description" content="A new Flutter project." />
+
+    <!-- iOS meta tags & icons -->
+    <meta name="apple-mobile-web-app-capable" content="yes" />
+    <meta name="apple-mobile-web-status-bar-style" content="black" />
+    <meta name="apple-mobile-web-app-title" content="example" />
+    <link rel="apple-touch-icon" href="/icons/Icon-192.png" />
+
+    <title>example</title>
+    <link rel="manifest" href="/manifest.json" />
+  </head>
+
+  <body>
+    <button id="temp">Play</button>
+    <script src="main.dart.js" type="application/javascript"></script>
+    <script
+      src="https://cdnjs.cloudflare.com/ajax/libs/tone/14.7.39/Tone.js"
+      type="application/javascript"
+    ></script>
+    <script>
+      const synth = new Tone.PolySynth().toDestination();
+      document.body.addEventListener("click", () => {
+        // const note = "C4";
+        // playNote(note);
+        // setTimeout(() => stopNote(note), 1000);
+        Tone.context.resume();
+      });
+      function playNote(note, duration) {
+        Tone.context.resume();
+        synth.triggerAttack(note, duration ?? Tone.context.currentTime);
+      }
+      function stopNote(note) {
+        Tone.context.resume();
+        synth.triggerRelease(note, Tone.context.currentTime);
+      }
+    </script>
+  </body>
+</html>

deprecated/flutter_midi/example/web/manifest.json

@@ -0,0 +1,23 @@
+{
+    "name": "example",
+    "short_name": "example",
+    "start_url": ".",
+    "display": "minimal-ui",
+    "background_color": "#0175C2",
+    "theme_color": "#0175C2",
+    "description": "A new Flutter project.",
+    "orientation": "portrait-primary",
+    "prefer_related_applications": false,
+    "icons": [
+        {
+            "src": "icons/Icon-192.png",
+            "sizes": "192x192",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-512.png",
+            "sizes": "512x512",
+            "type": "image/png"
+        }
+    ]
+}

deprecated/flutter_midi/ios/.gitignore

@@ -0,0 +1,36 @@
+.idea/
+.vagrant/
+.sconsign.dblite
+.svn/
+
+.DS_Store
+*.swp
+profile
+
+DerivedData/
+build/
+GeneratedPluginRegistrant.h
+GeneratedPluginRegistrant.m
+
+.generated/
+
+*.pbxuser
+*.mode1v3
+*.mode2v3
+*.perspectivev3
+
+!default.pbxuser
+!default.mode1v3
+!default.mode2v3
+!default.perspectivev3
+
+xcuserdata
+
+*.moved-aside
+
+*.pyc
+*sync/
+Icon?
+.tags*
+
+/Flutter/Generated.xcconfig

deprecated/flutter_midi/ios/Classes/AudioUnitMIDISynth.swift

@@ -0,0 +1,471 @@
+
+//
+//  AudioUnitMIDISynth.swift
+//  MIDISynth
+//
+//  Created by Gene De Lisa on 2/6/16.
+//  Copyright © 2016 Gene De Lisa. All rights reserved.
+//
+
+
+import Foundation
+import AudioToolbox
+import CoreAudio
+
+// swiftlint:disable function_body_length
+// swiftlint:disable type_body_length
+// swiftlint:disable file_length
+// swiftlint:disable line_length
+/// # A Core Audio MIDISynth `AudioUnit` example.
+/// This will add a polyphonic `kAudioUnitSubType_MIDISynth` audio unit to the `AUGraph`.
+///
+/// - author: Gene De Lisa
+/// - copyright: 2016 Gene De Lisa
+/// - date: February 2016
+class AudioUnitMIDISynth: NSObject {
+
+    var processingGraph: AUGraph?
+    var midisynthNode   = AUNode()
+    var ioNode          = AUNode()
+    var midisynthUnit: AudioUnit?
+    var ioUnit: AudioUnit?
+    var musicSequence: MusicSequence!
+    var musicPlayer: MusicPlayer!
+    let patch1          = UInt32(46)
+    let patch2          = UInt32(0)
+    var pitch           = UInt32(60)
+
+    var bankUrl: URL!
+
+    init(soundfont: URL) {
+        super.init()
+        prepare(soundfont:soundfont)
+       
+    }
+    
+    func prepare(soundfont: URL) {
+        bankUrl = soundfont;
+        augraphSetup()
+        loadMIDISynthSoundFont()
+        initializeGraph()
+        self.musicSequence = createMusicSequence()
+        musicPlayer = createPlayer(musicSequence)
+        loadPatches()
+        startGraph()
+    }
+
+    /// Create the `AUGraph`, the nodes and units, then wire them together.
+    func augraphSetup() {
+        var status = OSStatus(noErr)
+
+        status = NewAUGraph(&processingGraph)
+        AudioUtils.CheckError(status)
+
+        createIONode()
+
+        createSynthNode()
+
+        // now do the wiring. The graph needs to be open before you call AUGraphNodeInfo
+        status = AUGraphOpen(self.processingGraph!)
+        AudioUtils.CheckError(status)
+
+        status = AUGraphNodeInfo(self.processingGraph!, self.midisynthNode, nil, &midisynthUnit)
+        AudioUtils.CheckError(status)
+
+        status = AUGraphNodeInfo(self.processingGraph!, self.ioNode, nil, &ioUnit)
+        AudioUtils.CheckError(status)
+
+
+        let synthOutputElement: AudioUnitElement = 0
+        let ioUnitInputElement: AudioUnitElement = 0
+
+        status = AUGraphConnectNodeInput(self.processingGraph!,
+                                         self.midisynthNode, synthOutputElement, // srcnode, SourceOutputNumber
+            self.ioNode, ioUnitInputElement) // destnode, DestInputNumber
+
+        AudioUtils.CheckError(status)
+    }
+
+    /// Create the Output Node and add it to the `AUGraph`.
+    func createIONode() {
+        var cd = AudioComponentDescription(
+            componentType: OSType(kAudioUnitType_Output),
+            componentSubType: OSType(kAudioUnitSubType_RemoteIO),
+            componentManufacturer: OSType(kAudioUnitManufacturer_Apple),
+            componentFlags: 0, componentFlagsMask: 0)
+        let status = AUGraphAddNode(self.processingGraph!, &cd, &ioNode)
+        AudioUtils.CheckError(status)
+    }
+
+    /// Create the Synth Node and add it to the `AUGraph`.
+    func createSynthNode() {
+        var cd = AudioComponentDescription(
+            componentType: OSType(kAudioUnitType_MusicDevice),
+            componentSubType: OSType(kAudioUnitSubType_MIDISynth),
+            componentManufacturer: OSType(kAudioUnitManufacturer_Apple),
+            componentFlags: 0, componentFlagsMask: 0)
+        let status = AUGraphAddNode(self.processingGraph!, &cd, &midisynthNode)
+        AudioUtils.CheckError(status)
+    }
+
+
+
+    /// This will load the default sound font and set the synth unit's property.
+    /// - postcondition: `self.midisynthUnit` will have it's sound font url set.
+    func loadMIDISynthSoundFont() {
+
+        if var bankURL = bankUrl {
+
+            let status = AudioUnitSetProperty(
+                self.midisynthUnit!,
+                AudioUnitPropertyID(kMusicDeviceProperty_SoundBankURL),
+                AudioUnitScope(kAudioUnitScope_Global),
+                0,
+                &bankURL,
+                UInt32(MemoryLayout<URL>.size))
+
+            AudioUtils.CheckError(status)
+            print("loaded sound font")
+        } else {
+            print("Could not load sound font")
+        }
+    }
+
+
+    /// Pre-load the patches you will use.
+    ///
+    /// Turn on `kAUMIDISynthProperty_EnablePreload` so the midisynth will load the patch data from the file into memory.
+    /// You load the patches first before playing a sequence or sending messages.
+    /// Then you turn `kAUMIDISynthProperty_EnablePreload` off. It is now in a state where it will respond to MIDI program
+    /// change messages and switch to the already cached instrument data.
+    ///
+    /// - precondition: the graph must be initialized
+    ///
+    /// [Doug's post](http://prod.lists.apple.com/archives/coreaudio-api/2016/Jan/msg00018.html)
+    func loadPatches() {
+
+        if !isGraphInitialized() {
+            fatalError("initialize graph first")
+        }
+
+        let channel = UInt32(0)
+        var enabled = UInt32(1)
+
+        var status = AudioUnitSetProperty(
+            self.midisynthUnit!,
+            AudioUnitPropertyID(kAUMIDISynthProperty_EnablePreload),
+            AudioUnitScope(kAudioUnitScope_Global),
+            0,
+            &enabled,
+            UInt32(MemoryLayout<UInt32>.size))
+        AudioUtils.CheckError(status)
+
+        //        let bankSelectCommand = UInt32(0xB0 | 0)
+        //        status = MusicDeviceMIDIEvent(self.midisynthUnit, bankSelectCommand, 0, 0, 0)
+
+        let pcCommand = UInt32(0xC0 | channel)
+        status = MusicDeviceMIDIEvent(self.midisynthUnit!, pcCommand, patch1, 0, 0)
+        AudioUtils.CheckError(status)
+        status = MusicDeviceMIDIEvent(self.midisynthUnit!, pcCommand, patch2, 0, 0)
+        AudioUtils.CheckError(status)
+
+        enabled = UInt32(0)
+        status = AudioUnitSetProperty(
+            self.midisynthUnit!,
+            AudioUnitPropertyID(kAUMIDISynthProperty_EnablePreload),
+            AudioUnitScope(kAudioUnitScope_Global),
+            0,
+            &enabled,
+            UInt32(MemoryLayout<UInt32>.size))
+        AudioUtils.CheckError(status)
+
+        // at this point the patches are loaded. You still have to send a program change at "play time" for the synth
+        // to switch to that patch
+    }
+
+
+    /// Check to see if the `AUGraph` is Initialized.
+    ///
+    /// - returns: `true` if it's running, `false` if not
+    /// - seealso: [AUGraphIsInitialized](/https://developer.apple.com/library/prerelease/ios/documentation/AudioToolbox/Reference/AUGraphServicesReference/index.html#//apple_ref/c/func/AUGraphIsInitialized)
+    func isGraphInitialized() -> Bool {
+        var outIsInitialized = DarwinBoolean(false)
+        let status = AUGraphIsInitialized(self.processingGraph!, &outIsInitialized)
+        AudioUtils.CheckError(status)
+        return outIsInitialized.boolValue
+    }
+
+    /// Initializes the `AUGraph.
+    func initializeGraph() {
+        let status = AUGraphInitialize(self.processingGraph!)
+        AudioUtils.CheckError(status)
+    }
+
+    /// Starts the `AUGraph`
+    func startGraph() {
+        let status = AUGraphStart(self.processingGraph!)
+        AudioUtils.CheckError(status)
+    }
+
+    /// Check to see if the `AUGraph` is running.
+    ///
+    /// - returns: `true` if it's running, `false` if not
+    func isGraphRunning() -> Bool {
+        var isRunning = DarwinBoolean(false)
+        let status = AUGraphIsRunning(self.processingGraph!, &isRunning)
+        AudioUtils.CheckError(status)
+        return isRunning.boolValue
+    }
+
+    /// Generate a random pitch between 36 (C below middle C) and 100.
+    ///
+    /// - postcondition: self.pitch is modified
+    func generateRandomPitch() {
+        pitch = arc4random_uniform(64) + 36 // 36 - 100
+    }
+
+//    /// Send a note on message using patch1 on channel 0
+//    func playPatch1On() {
+//
+//        let channel = UInt32(0)
+//        let noteCommand = UInt32(0x90 | channel)
+//        let pcCommand = UInt32(0xC0 | channel)
+//        var status = OSStatus(noErr)
+//
+//        generateRandomPitch()
+//        print(pitch)
+//        status = MusicDeviceMIDIEvent(self.midisynthUnit!, pcCommand, patch1, 0, 0)
+//        AudioUtils.CheckError(status)
+//        status = MusicDeviceMIDIEvent(self.midisynthUnit!, noteCommand, pitch, 64, 0)
+//        AudioUtils.CheckError(status)
+//    }
+//
+//    /// Send a note off message using patch1 on channel 0
+//    func playPatch1Off() {
+//        let channel = UInt32(0)
+//        let noteCommand = UInt32(0x80 | channel)
+//        var status = OSStatus(noErr)
+//        status = MusicDeviceMIDIEvent(self.midisynthUnit!, noteCommand, pitch, 0, 0)
+//        AudioUtils.CheckError(status)
+//    }
+//
+//    /// Send a note on message using patch2 on channel 0
+//    func playPatch2On(midi: Int) {
+//
+//        let channel = UInt32(0)
+//        let noteCommand = UInt32(0x90 | channel)
+//        let pcCommand = UInt32(0xC0 | channel)
+//        var status = OSStatus(noErr)
+//        pitch = UInt32(midi)
+//        //generateRandomPitch()
+//        print(pitch)
+//        status = MusicDeviceMIDIEvent(self.midisynthUnit!, pcCommand, patch2, 0, 0)
+//        AudioUtils.CheckError(status)
+//        status = MusicDeviceMIDIEvent(self.midisynthUnit!, noteCommand, pitch, 64, 0)
+//        AudioUtils.CheckError(status)
+//    }
+//
+//    /// Send a note off message using patch2 on channel 0
+//    func playPatch2Off() {
+//        let channel = UInt32(0)
+//        let noteCommand = UInt32(0x80 | channel)
+//        var status = OSStatus(noErr)
+//        status = MusicDeviceMIDIEvent(self.midisynthUnit!, noteCommand, pitch, 0, 0)
+//        AudioUtils.CheckError(status)
+//    }
+//
+
+    /// Send a note on message using patch2 on channel 0
+    func playPitch(midi: Int, velocity: Int) {
+
+        let channel = UInt32(0)
+        let noteCommand = UInt32(0x90 | channel)
+        let pcCommand = UInt32(0xC0 | channel)
+        var status = OSStatus(noErr)
+
+        status = MusicDeviceMIDIEvent(self.midisynthUnit!, pcCommand, patch2, 0, 0)
+        AudioUtils.CheckError(status)
+        status = MusicDeviceMIDIEvent(self.midisynthUnit!, noteCommand, UInt32(midi), UInt32(velocity), 0)
+        AudioUtils.CheckError(status)
+    }
+
+    /// Send a note off message using patch2 on channel 0
+    func stopPitch(midi: Int, velocity: Int) {
+        let channel = UInt32(0)
+        let noteCommand = UInt32(0x80 | channel)
+        var status = OSStatus(noErr)
+        status = MusicDeviceMIDIEvent(self.midisynthUnit!, noteCommand, UInt32(midi), UInt32(velocity), 0)
+        AudioUtils.CheckError(status)
+    }
+    
+    
+    /// Create a test `MusicSequence`.
+    ///
+    /// - throws: Nothing, but it should
+    /// - todo: create an `ErrorType` ennum
+    /// - returns: a `MusicSequence`
+    func createMusicSequence() -> MusicSequence {
+        
+        var musicSequence: MusicSequence?
+        var status = NewMusicSequence(&musicSequence)
+        if status != noErr {
+            print("\(#line) bad status \(status) creating sequence")
+        }
+        
+        // add a track
+        var track: MusicTrack?
+        status = MusicSequenceNewTrack(musicSequence!, &track)
+        if status != noErr {
+            print("error creating track \(status)")
+        }
+        
+        var channel = UInt8(0)
+        // bank select msb
+        var chanmess = MIDIChannelMessage(status: 0xB0 | channel, data1: 0, data2: 0, reserved: 0)
+        status = MusicTrackNewMIDIChannelEvent(track!, 0, &chanmess)
+        if status != noErr {
+            print("creating bank select event \(status)")
+        }
+        // bank select lsb
+        chanmess = MIDIChannelMessage(status: 0xB0 | channel, data1: 32, data2: 0, reserved: 0)
+        status = MusicTrackNewMIDIChannelEvent(track!, 0, &chanmess)
+        if status != noErr {
+            print("creating bank select event \(status)")
+        }
+        
+        // program change. first data byte is the patch, the second data byte is unused for program change messages.
+        chanmess = MIDIChannelMessage(status: 0xC0 | channel, data1: UInt8(patch1), data2: 0, reserved: 0)
+        status = MusicTrackNewMIDIChannelEvent(track!, 0, &chanmess)
+        if status != noErr {
+            print("creating program change event \(status)")
+        }
+        
+        // now make some notes and put them on the track
+        var beat = MusicTimeStamp(0.0)
+        for i: UInt8 in 60...72 {
+            var mess = MIDINoteMessage(channel: channel,
+                                       note: i,
+                                       velocity: 64,
+                                       releaseVelocity: 0,
+                                       duration: 1.0 )
+            status = MusicTrackNewMIDINoteEvent(track!, beat, &mess)
+            if status != noErr {
+                print("creating new midi note event \(status)")
+            }
+            beat += 1
+        }
+        
+        // another track
+        
+        channel = UInt8(1)
+        
+        track = nil
+        status = MusicSequenceNewTrack(musicSequence!, &track)
+        if status != noErr {
+            print("error creating track \(status)")
+        }
+        
+        chanmess = MIDIChannelMessage(status: 0xB0 | channel, data1: 0, data2: 0, reserved: 0)
+        status = MusicTrackNewMIDIChannelEvent(track!, 0, &chanmess)
+        if status != noErr {
+            print("creating bank select msb event \(status)")
+        }
+        
+        chanmess = MIDIChannelMessage(status: 0xB0 | channel, data1: 32, data2: 0, reserved: 0)
+        status = MusicTrackNewMIDIChannelEvent(track!, 0, &chanmess)
+        if status != noErr {
+            print("creating bank select lsb event \(status)")
+        }
+        
+        chanmess = MIDIChannelMessage(status: 0xC0 | channel, data1: UInt8(patch2), data2: 0, reserved: 0)
+        status = MusicTrackNewMIDIChannelEvent(track!, 0, &chanmess)
+        if status != noErr {
+            print("creating program change event \(status)")
+        }
+        
+        beat = MusicTimeStamp(3.0)
+        for i: UInt8 in 60...72 {
+            var mess = MIDINoteMessage(channel: channel,
+                                       note: i,
+                                       velocity: 36,
+                                       releaseVelocity: 0,
+                                       
+                                       duration: 1.0 )
+            status = MusicTrackNewMIDINoteEvent(track!, beat, &mess)
+            if status != OSStatus(noErr) {
+                print("creating new midi note event \(status)")
+            }
+            beat += 1
+        }
+        
+        // associate the AUGraph with the sequence.
+        status = MusicSequenceSetAUGraph(musicSequence!, self.processingGraph)
+        
+        // Let's see it
+        CAShow(UnsafeMutablePointer<MusicSequence>(musicSequence!))
+        
+        return musicSequence!
+    }
+    
+    /// Create a `MusicPlayer` with the specified sequence.
+    ///
+    /// - parameters:
+    ///   - musicSequence: a valid `MusicSequence` instance
+    /// - throws: Nothing, but it should
+    /// - todo: create an `ErrorType` ennum
+    /// - returns: a `MusicPlayer`
+    func createPlayer(_ musicSequence: MusicSequence) -> MusicPlayer {
+        var musicPlayer: MusicPlayer?
+        
+        var status = NewMusicPlayer(&musicPlayer)
+        if status != OSStatus(noErr) {
+            print("bad status \(status) creating player")
+            AudioUtils.CheckError(status)
+        }
+        
+        status = MusicPlayerSetSequence(musicPlayer!, musicSequence)
+        if status != OSStatus(noErr) {
+            print("setting sequence \(status)")
+            AudioUtils.CheckError(status)
+        }
+        status = MusicPlayerPreroll(musicPlayer!)
+        if status != OSStatus(noErr) {
+            print("prerolling player \(status)")
+            AudioUtils.CheckError(status)
+        }
+        return musicPlayer!
+    }
+    
+    /// Make the `MusicPlayer` play its sequence
+    /// - throws: Nothing, but it should
+    /// - todo: create an `ErrorType` ennum
+    func musicPlayerPlay() {
+        var status = noErr
+        var playing: DarwinBoolean = false
+        status = MusicPlayerIsPlaying(musicPlayer, &playing)
+        if playing != false {
+            status = MusicPlayerStop(musicPlayer)
+            if status != noErr {
+                print("Error stopping \(status)")
+                AudioUtils.CheckError(status)
+                return
+            }
+        }
+        
+        status = MusicPlayerSetTime(musicPlayer, 0)
+        if status != noErr {
+            print("setting time \(status)")
+            AudioUtils.CheckError(status)
+            return
+        }
+        
+        status = MusicPlayerStart(musicPlayer)
+        if status != noErr {
+            print("Error starting \(status)")
+            AudioUtils.CheckError(status)
+            return
+        }
+    }
+    
+}
+

deprecated/flutter_midi/ios/Classes/AudioUtils.swift

@@ -0,0 +1,449 @@
+//
+//  AudioUtils.swift
+//  SwiftMusic
+//
+//  Created by Gene De Lisa on 2/28/15.
+//  Copyright (c) 2015 Gene De Lisa. All rights reserved.
+//
+
+import Foundation
+import AudioToolbox
+import CoreAudio
+
+// swiftlint:disable function_body_length
+// swiftlint:disable type_body_length
+// swiftlint:disable file_length
+
+
+#if os(OSX)
+    // for UTCreateStringForOSType
+    import CoreServices
+    
+#endif
+
+#if os(tvOS)
+#elseif os(iOS)
+    import CoreMIDI
+#endif
+
+import AVFoundation
+
+
+/// # A few utilities for using Core Audio.
+///
+/// I started with [Adamson's](http://amzn.to/1KG0yWe) Objective-C CheckError method. The translation
+/// into Swift was a bit of a pain.
+///
+/// - author: Gene De Lisa
+/// - copyright: 2016 Gene De Lisa
+/// - date: February 2016
+open class AudioUtils {
+    
+    fileprivate init() {
+    }
+    
+    
+    
+    ///  Create a String from an encoded 4char.
+    ///
+    ///  - parameter n: The encoded 4char
+    ///
+    ///  - returns: The String representation.
+    class func stringFrom4(_ n: Int) -> String {
+        
+        var scalar = UnicodeScalar((n >> 24) & 255)
+        if !scalar!.isASCII {
+            return ""
+        }
+        var s = String(describing: scalar)
+        
+        scalar = UnicodeScalar((n >> 16) & 255)
+        if !scalar!.isASCII {
+            return ""
+        }
+        s.append(String(describing: scalar))
+        
+        scalar = UnicodeScalar((n >> 8) & 255)
+        if !scalar!.isASCII {
+            return ""
+        }
+        s.append(String(describing: scalar))
+        
+        scalar = UnicodeScalar(n & 255)
+        if !scalar!.isASCII {
+            return ""
+        }
+        s.append(String(describing: scalar))
+        
+        
+        return s
+    }
+    
+    ///  Create a String from an encoded 4char.
+    ///
+    ///  - parameter status: an `OSStatus` containing the encoded 4char.
+    ///
+    ///  - returns: The String representation.
+    class func stringFrom4(_ status: OSStatus) -> String {
+        let n = Int(status)
+        return stringFrom4(n)
+    }
+    
+    ///  Create an encoded 4char from a String.
+    ///
+    ///  - parameter s: The String.
+    ///
+    ///  - returns: the encoded Int
+    class func valueFromString4(_ s: String) -> Int {
+        var n = 0
+        var r = ""
+        
+        if s.count > 4 {
+            let startIndex = s.index(s.startIndex, offsetBy: 4)
+            //            r = s.substring(from: startIndex)
+            r = String(s[startIndex...])
+        } else {
+            r = s + "    "
+            let startIndex = s.index(s.startIndex, offsetBy: 4)
+            //            r = r.substring(to: startIndex)
+            r = String(r[...startIndex])
+            
+        }
+        
+        for UniCodeChar in r.unicodeScalars {
+            n = (n << 8) + (Int(UniCodeChar.value) & 255)
+        }
+        
+        return n
+    }
+    
+    
+    // osx only
+    //let s = UTCreateStringForOSType(error)
+    //
+    //        let e = UInt32(error)
+    ////        let swapped = CFSwapInt32HostToBig(e)
+    //        let swapped = e
+    //
+    //        let b1 = Character(UnicodeScalar(swapped & 0b00001))
+    //        let b2 = Character(UnicodeScalar(swapped & 0b00010))
+    //        let b3 = Character(UnicodeScalar(swapped & 0b00100))
+    //        let b4 = Character(UnicodeScalar(swapped & 0b01000))
+    //        print("check error string: \(b1) \(b2) \(b3) \(b4)")
+    //    func OSTypeFrom(string : String) -> UInt {
+    //        var result : UInt = 0
+    //        if let data = string.dataUsingEncoding(NSMacOSRomanStringEncoding) {
+    //            let bytes = UnsafePointer<UInt8>(data.bytes)
+    //            for i in 0..<data.length {
+    //                result = result << 8 + UInt(bytes[i])
+    //            }
+    //        }
+    //        return result
+    //    }
+    
+    
+    //    func stringValue(unicodeValue: Int) -> String {
+    //        var stringValue = ""
+    //        var value = unicodeValue
+    //        for _ in 0..<4 {
+    //            stringValue = String(UnicodeScalar(value & 255)) + stringValue
+    //            value = value / 256
+    //        }
+    //        return stringValue
+    //    }
+    
+    
+    
+    #if os(tvOS)
+    /// Check the status code
+    ///
+    /// - parameter error: The status to check.
+    /// - todo: Finish this for tvOS
+    class func CheckError(status: OSStatus) {
+    if status == noErr {
+    print("no error")
+    return
+    }
+    print("error \(status)")
+    }
+    #elseif os(iOS)
+    ///  Print a description of the status code to stdout if it's an error.
+    ///
+    ///  - parameter status: the status to check.
+    class func CheckError(_ status: OSStatus) {
+    
+    if status == noErr {
+    return
+    }
+    
+    let s = stringFrom4(status)
+    print("error chars '\(s)'")
+    
+    
+    switch status {
+    // AudioToolbox
+    case kAUGraphErr_NodeNotFound:
+    print("kAUGraphErr_NodeNotFound")
+    
+    case kAUGraphErr_OutputNodeErr:
+    print("kAUGraphErr_OutputNodeErr")
+    
+    case kAUGraphErr_InvalidConnection:
+    print("kAUGraphErr_InvalidConnection")
+    
+    case kAUGraphErr_CannotDoInCurrentContext:
+    print("kAUGraphErr_CannotDoInCurrentContext")
+    
+    case kAUGraphErr_InvalidAudioUnit:
+    print("kAUGraphErr_InvalidAudioUnit")
+    
+    case kMIDIInvalidClient :
+    print("kMIDIInvalidClient ")
+    
+    
+    case kMIDIInvalidPort :
+    print("kMIDIInvalidPort ")
+    
+    
+    case kMIDIWrongEndpointType :
+    print("kMIDIWrongEndpointType")
+    
+    
+    case kMIDINoConnection :
+    print("kMIDINoConnection ")
+    
+    
+    case kMIDIUnknownEndpoint :
+    print("kMIDIUnknownEndpoint ")
+    
+    
+    case kMIDIUnknownProperty :
+    print("kMIDIUnknownProperty ")
+    
+    
+    case kMIDIWrongPropertyType :
+    print("kMIDIWrongPropertyType ")
+    
+    
+    case kMIDINoCurrentSetup :
+    print("kMIDINoCurrentSetup ")
+    
+    
+    case kMIDIMessageSendErr :
+    print("kMIDIMessageSendErr ")
+    
+    
+    case kMIDIServerStartErr :
+    print("kMIDIServerStartErr ")
+    
+    
+    case kMIDISetupFormatErr :
+    print("kMIDISetupFormatErr ")
+    
+    
+    case kMIDIWrongThread :
+    print("kMIDIWrongThread ")
+    
+    
+    case kMIDIObjectNotFound :
+    print("kMIDIObjectNotFound ")
+    
+    
+    case kMIDIIDNotUnique :
+    print("kMIDIIDNotUnique ")
+    
+    
+    case kAudioToolboxErr_InvalidSequenceType :
+    print("kAudioToolboxErr_InvalidSequenceType ")
+    
+    case kAudioToolboxErr_TrackIndexError :
+    print("kAudioToolboxErr_TrackIndexError ")
+    
+    case kAudioToolboxErr_TrackNotFound :
+    print("kAudioToolboxErr_TrackNotFound ")
+    
+    case kAudioToolboxErr_EndOfTrack :
+    print("kAudioToolboxErr_EndOfTrack ")
+    
+    case kAudioToolboxErr_StartOfTrack :
+    print("kAudioToolboxErr_StartOfTrack ")
+    
+    case kAudioToolboxErr_IllegalTrackDestination:
+    print("kAudioToolboxErr_IllegalTrackDestination")
+    
+    case kAudioToolboxErr_NoSequence :
+    print("kAudioToolboxErr_NoSequence ")
+    
+    case kAudioToolboxErr_InvalidEventType    :
+    print("kAudioToolboxErr_InvalidEventType")
+    
+    case kAudioToolboxErr_InvalidPlayerState:
+    print("kAudioToolboxErr_InvalidPlayerState")
+    
+    case kAudioUnitErr_InvalidProperty    :
+    print("kAudioUnitErr_InvalidProperty")
+    
+    case kAudioUnitErr_InvalidParameter    :
+    print("kAudioUnitErr_InvalidParameter")
+    
+    case kAudioUnitErr_InvalidElement :
+    print("kAudioUnitErr_InvalidElement")
+    
+    case kAudioUnitErr_NoConnection    :
+    print("kAudioUnitErr_NoConnection")
+    
+    case kAudioUnitErr_FailedInitialization    :
+    print("kAudioUnitErr_FailedInitialization")
+    
+    case kAudioUnitErr_TooManyFramesToProcess:
+    print("kAudioUnitErr_TooManyFramesToProcess")
+    
+    case kAudioUnitErr_InvalidFile:
+    print("kAudioUnitErr_InvalidFile")
+    
+    case kAudioUnitErr_FormatNotSupported :
+    print("kAudioUnitErr_FormatNotSupported")
+    
+    case kAudioUnitErr_Uninitialized:
+    print("kAudioUnitErr_Uninitialized")
+    
+    case kAudioUnitErr_InvalidScope :
+    print("kAudioUnitErr_InvalidScope")
+    
+    case kAudioUnitErr_PropertyNotWritable :
+    print("kAudioUnitErr_PropertyNotWritable")
+    
+    case kAudioUnitErr_InvalidPropertyValue :
+    print("kAudioUnitErr_InvalidPropertyValue")
+    
+    case kAudioUnitErr_PropertyNotInUse :
+    print("kAudioUnitErr_PropertyNotInUse")
+    
+    case kAudioUnitErr_Initialized :
+    print("kAudioUnitErr_Initialized")
+    
+    case kAudioUnitErr_InvalidOfflineRender :
+    print("kAudioUnitErr_InvalidOfflineRender")
+    
+    case kAudioUnitErr_Unauthorized :
+    print("kAudioUnitErr_Unauthorized")
+    
+    case kAudioUnitErr_CannotDoInCurrentContext:
+    print("kAudioUnitErr_CannotDoInCurrentContext")
+    
+    case kAudioUnitErr_FailedInitialization:
+    print("kAudioUnitErr_FailedInitialization")
+    
+    case kAudioUnitErr_FileNotSpecified:
+    print("kAudioUnitErr_FileNotSpecified")
+    
+    case kAudioUnitErr_FormatNotSupported:
+    print("kAudioUnitErr_FormatNotSupported")
+    
+    case kAudioUnitErr_IllegalInstrument:
+    print("kAudioUnitErr_IllegalInstrument")
+    
+    case kAudioUnitErr_Initialized:
+    print("kAudioUnitErr_Initialized")
+    
+    case kAudioUnitErr_InstrumentTypeNotFound:
+    print("kAudioUnitErr_InstrumentTypeNotFound")
+    
+    case kAudioUnitErr_InvalidElement:
+    print("kAudioUnitErr_InvalidElement")
+    
+    case kAudioUnitErr_InvalidFile:
+    print("kAudioUnitErr_InvalidFile")
+    
+    case kAudioUnitErr_InvalidOfflineRender:
+    print("kAudioUnitErr_InvalidOfflineRender")
+    
+    case kAudioUnitErr_InvalidParameter:
+    print("kAudioUnitErr_InvalidParameter")
+    
+    case kAudioUnitErr_InvalidProperty:
+    print("kAudioUnitErr_InvalidProperty")
+    
+    case kAudioUnitErr_InvalidPropertyValue:
+    print("kAudioUnitErr_InvalidPropertyValue")
+    
+    case kAudioUnitErr_InvalidScope:
+    print("kAudioUnitErr_InvalidScope")
+    
+    case kAudioUnitErr_NoConnection:
+    print("kAudioUnitErr_NoConnection")
+    
+    case kAudioUnitErr_PropertyNotInUse:
+    print("kAudioUnitErr_PropertyNotInUse")
+    
+    case kAudioUnitErr_PropertyNotWritable:
+    print("kAudioUnitErr_PropertyNotWritable")
+    
+    case kAudioUnitErr_TooManyFramesToProcess:
+    print("kAudioUnitErr_TooManyFramesToProcess")
+    
+    case kAudioUnitErr_Unauthorized:
+    print("kAudioUnitErr_Unauthorized")
+    
+    case kAudioUnitErr_Uninitialized:
+    print("kAudioUnitErr_Uninitialized")
+    
+    case kAudioUnitErr_UnknownFileType:
+    print("kAudioUnitErr_UnknownFileType")
+    
+    case kAudioComponentErr_InstanceInvalidated:
+    print("kAudioComponentErr_InstanceInvalidated ")
+    
+    case kAudioComponentErr_DuplicateDescription:
+    print("kAudioComponentErr_DuplicateDescription ")
+    
+    case kAudioComponentErr_UnsupportedType:
+    print("kAudioComponentErr_UnsupportedType ")
+    
+    case kAudioComponentErr_TooManyInstances:
+    print("kAudioComponentErr_TooManyInstances ")
+    
+    case kAudioComponentErr_NotPermitted:
+    print("kAudioComponentErr_NotPermitted ")
+    
+    case kAudioComponentErr_InitializationTimedOut:
+    print("kAudioComponentErr_InitializationTimedOut ")
+    
+    case kAudioComponentErr_InvalidFormat:
+    print("kAudioComponentErr_InvalidFormat ")
+    
+    // in CoreAudioTypes
+    case kAudio_UnimplementedError :
+    print("kAudio_UnimplementedError")
+    
+    case kAudio_FileNotFoundError :
+    print("kAudio_FileNotFoundError")
+    
+    case kAudio_FilePermissionError :
+    print("kAudio_FilePermissionError")
+    
+    case kAudio_TooManyFilesOpenError :
+    print("kAudio_TooManyFilesOpenError")
+    
+    case kAudio_BadFilePathError :
+    print("kAudio_BadFilePathError")
+    
+    case kAudio_ParamError :
+    print("kAudio_ParamError") // the infamous -50
+    
+    case kAudio_MemFullError :
+    print("kAudio_MemFullError")
+    
+    
+    default:
+    print("huh?")
+    print("bad status \(status)")
+    //print("\(__LINE__) bad status \(error)")
+    }
+    }
+    
+    #endif
+    
+    
+}
+

deprecated/flutter_midi/ios/Classes/FlutterMidiPlugin.h

@@ -0,0 +1,4 @@
+#import <Flutter/Flutter.h>
+
+@interface FlutterMidiPlugin : NSObject<FlutterPlugin>
+@end

deprecated/flutter_midi/ios/Classes/FlutterMidiPlugin.m

@@ -0,0 +1,8 @@
+#import "FlutterMidiPlugin.h"
+#import <flutter_midi/flutter_midi-Swift.h>
+
+@implementation FlutterMidiPlugin
++ (void)registerWithRegistrar:(NSObject<FlutterPluginRegistrar>*)registrar {
+  [SwiftFlutterMidiPlugin registerWithRegistrar:registrar];
+}
+@end

deprecated/flutter_midi/ios/Classes/SwiftFlutterMidiPlugin.swift

@@ -0,0 +1,61 @@
+import Flutter
+import UIKit
+import AVFoundation
+
+public class SwiftFlutterMidiPlugin: NSObject, FlutterPlugin {
+  var message = "Please Send Message"
+  var _arguments = [String: Any]()
+  var au: AudioUnitMIDISynth!
+
+  public static func register(with registrar: FlutterPluginRegistrar) {
+    let channel = FlutterMethodChannel(name: "flutter_midi", binaryMessenger: registrar.messenger())
+    let instance = SwiftFlutterMidiPlugin()
+    registrar.addMethodCallDelegate(instance, channel: channel)
+  }
+
+  public func handle(_ call: FlutterMethodCall, result: @escaping FlutterResult) {
+    switch call.method {
+      case "prepare_midi":
+        let map = call.arguments as? Dictionary<String, String>
+       let data = map?["path"]
+      let url = URL(fileURLWithPath: data!)
+         au = AudioUnitMIDISynth(soundfont: url)
+          print("Valid URL: \(url)")
+        let message = "Prepared Sound Font"
+        result(message)
+    case "change_sound":
+        let map = call.arguments as? Dictionary<String, String>
+        let data = map?["path"]
+        let url = URL(fileURLWithPath: data!)
+        au.prepare(soundfont: url)
+        print("Valid URL: \(url)")
+        let message = "Prepared Sound Font"
+        result(message)
+      case "unmute":
+        do {
+            try AVAudioSession.sharedInstance().setCategory(AVAudioSession.Category.playback)
+        } catch {
+            print(error)
+        }
+        let message = "unmuted Device"
+        result(message)
+      case "play_midi_note":
+        _arguments = call.arguments as! [String : Any];
+        let midi = _arguments["note"] as? Int
+        let velocity = _arguments["velocity"] as? Int
+        au.playPitch(midi: midi ?? 60, velocity: velocity ?? 64)
+        let message = "Playing: \(String(describing: midi!))"
+        result(message)
+      case "stop_midi_note":
+        _arguments = call.arguments as! [String : Any];
+        let midi = _arguments["note"] as? Int
+        let velocity = _arguments["velocity"] as? Int
+      au.stopPitch(midi: midi ?? 60, velocity: velocity ?? 64)
+        let message = "Stopped: \(String(describing: midi!))"
+        result(message)
+      default:
+        result(FlutterMethodNotImplemented)
+        break
+    }
+  }
+}

deprecated/flutter_midi/ios/flutter_midi.podspec

@@ -0,0 +1,21 @@
+#
+# To learn more about a Podspec see http://guides.cocoapods.org/syntax/podspec.html
+#
+Pod::Spec.new do |s|
+  s.name             = 'flutter_midi'
+  s.version          = '0.0.1'
+  s.summary          = 'A FLutter Plugin to Play midi on iOS and Android.'
+  s.description      = <<-DESC
+A FLutter Plugin to Play midi on iOS and Android.
+                       DESC
+  s.homepage         = 'http://example.com'
+  s.license          = { :file => '../LICENSE' }
+  s.author           = { 'Your Company' => 'email@example.com' }
+  s.source           = { :path => '.' }
+  s.source_files = 'Classes/**/*'
+  s.public_header_files = 'Classes/**/*.h'
+  s.dependency 'Flutter'
+  
+  s.ios.deployment_target = '8.0'
+end
+

deprecated/flutter_midi/lib/flutter_midi.dart

@@ -0,0 +1,83 @@
+import 'dart:async';
+import 'dart:io';
+import 'package:flutter/foundation.dart';
+
+import 'package:flutter/services.dart';
+
+import 'src/cache.dart';
+import 'src/platform_interface.dart';
+
+class FlutterMidi extends FlutterMidiPlatform {
+  static const MethodChannel _channel = MethodChannel('flutter_midi');
+
+  /// Needed so that the sound font is loaded
+  /// On iOS make sure to include the sound_font.SF2 in the Runner folder.
+  /// This does not work in the simulator.
+  @override
+  Future<String?> prepare({
+    required ByteData? sf2,
+    String name = 'instrument.sf2',
+  }) async {
+    if (sf2 == null) return Future.value(null);
+    if (kIsWeb) return _channel.invokeMethod('prepare_midi');
+    File? _file = await writeToFile(sf2, name: name);
+    if (_file == null) return null;
+    return _channel.invokeMethod('prepare_midi', {'path': _file.path});
+  }
+
+  /// Needed so that the sound font is loaded
+  /// On iOS make sure to include the sound_font.SF2 in the Runner folder.
+  /// This does not work in the simulator.
+  @override
+  Future<String?> changeSound({
+    required ByteData? sf2,
+    String name = 'instrument.sf2',
+  }) async {
+    if (sf2 == null) return Future.value(null);
+    File? _file = await writeToFile(sf2, name: name);
+    if (_file == null) return null;
+
+    final Map<dynamic, dynamic> mapData = <dynamic, dynamic>{};
+    mapData['path'] = _file.path;
+    debugPrint('Path => ${_file.path}');
+    final String result = await _channel.invokeMethod('change_sound', mapData);
+    debugPrint('Result: $result');
+    return result;
+  }
+
+  /// Unmute the device temporarily even if the mute switch is on or toggled in settings.
+  @override
+  Future<String> unmute() async {
+    final String result = await _channel.invokeMethod('unmute');
+    return result;
+  }
+
+  /// Use this when stopping the sound onTouchUp or to cancel a long file.
+  /// Not needed if playing midi onTap.
+  /// Stop with velocity in the range between 0-127
+  @override
+  Future<String?> stopMidiNote({
+    required int midi,
+    int velocity = 64,
+  }) async {
+    return _channel.invokeMethod('stop_midi_note', {
+      'note': midi,
+      'velocity': velocity,
+    });
+  }
+
+  /// Play a midi note from the sound_font.SF2 library bundled with the application.
+  /// Play a midi note in the range between 0-127
+  /// Play with velocity in the range between 0-127
+  /// Multiple notes can be played at once as separate calls.
+  @override
+  Future<String?> playMidiNote({
+    required int midi,
+    int velocity = 64,
+  }) async {
+    return _channel.invokeMethod('play_midi_note', {
+      'note': midi,
+      'velocity': velocity,
+    });
+  }
+}

deprecated/flutter_midi/lib/flutter_midi_web.dart

@@ -0,0 +1,41 @@
+import 'dart:async';
+import 'dart:js' as js;
+import 'package:flutter/widgets.dart';
+import 'package:tonic/tonic.dart' as tonic;
+import 'package:flutter_web_plugins/flutter_web_plugins.dart';
+
+import 'package:flutter/services.dart';
+
+import 'src/platform_interface.dart';
+
+class FlutterMidiPlugin extends FlutterMidiPlatform {
+  static void registerWith(Registrar registrar) {
+    WidgetsFlutterBinding.ensureInitialized();
+    final instance = FlutterMidiPlugin();
+    final MethodChannel channel = MethodChannel(
+      'flutter_midi',
+      const StandardMethodCodec(),
+      registrar.messenger,
+    );
+    channel.setMethodCallHandler(instance.handleMethodCall);
+  }
+
+  Future<dynamic> handleMethodCall(MethodCall call) async {
+    switch (call.method) {
+      case 'play_midi_note':
+        final int midi = call.arguments['note'];
+        String _note = tonic.Pitch.fromMidiNumber(midi).toString();
+        _note = _note.replaceAll('♭', 'b').replaceAll('♯', '#');
+        js.context.callMethod('playNote', [_note]);
+        return 'Result: $_note';
+      case 'stop_midi_note':
+        final int midi = call.arguments['note'];
+        String _note = tonic.Pitch.fromMidiNumber(midi).toString();
+        _note = _note.replaceAll('♭', 'b').replaceAll('♯', '#');
+        // print('Midi -> $midi/$_note');
+        js.context.callMethod('stopNote');
+        return 'Result: $_note';
+      default:
+    }
+  }
+}

deprecated/flutter_midi/lib/src/cache.dart

@@ -0,0 +1,16 @@
+import 'dart:async';
+import 'dart:io';
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter/services.dart';
+import 'package:path_provider/path_provider.dart';
+
+Future<File?> writeToFile(ByteData data,
+    {String name = "instrument.sf2"}) async {
+  if (kIsWeb) return null;
+  final buffer = data.buffer;
+  final directory = await getApplicationDocumentsDirectory();
+  final path = "${directory.path}/$name";
+  return File(path)
+      .writeAsBytes(buffer.asUint8List(data.offsetInBytes, data.lengthInBytes));
+}

deprecated/flutter_midi/lib/src/method_channel.dart

@@ -0,0 +1,70 @@
+import 'package:flutter/services.dart';
+
+import 'platform_interface.dart';
+
+const MethodChannel _channel = MethodChannel('flutter_midi');
+
+class MethodChannelUrlLauncher extends FlutterMidiPlatform {
+  /// Needed so that the sound font is loaded
+  /// On iOS make sure to include the sound_font.SF2 in the Runner folder.
+  /// This does not work in the simulator.
+  @override
+  Future<String?> prepare({
+    required ByteData? sf2,
+    String name = 'instrument.sf2',
+  }) async {
+    return _channel.invokeMethod<String>('prepare_midi', {
+      'name': name,
+      'data': sf2,
+    });
+  }
+
+  /// Needed so that the sound font is loaded
+  /// On iOS make sure to include the sound_font.SF2 in the Runner folder.
+  /// This does not work in the simulator.
+  @override
+  Future<String?> changeSound({
+    required ByteData? sf2,
+    String name = 'instrument.sf2',
+  }) async {
+    return _channel.invokeMethod<String>('change_sound', {
+      'name': name,
+      'data': sf2,
+    });
+  }
+
+  /// Unmute the device temporarily even if the mute switch is on or toggled in settings.
+  @override
+  Future<String?> unmute() {
+    return _channel.invokeMethod<String>('unmute');
+  }
+
+  /// Use this when stopping the sound onTouchUp or to cancel a long file.
+  /// Not needed if playing midi onTap.
+  /// Stop with velocity in the range between 0-127
+  @override
+  Future<String?> stopMidiNote({
+    required int midi,
+    int velocity = 64,
+  }) {
+    return _channel.invokeMethod<String>('stop_midi_note', {
+      'note': midi,
+      'velocity': velocity,
+    });
+  }
+
+  /// Play a midi note from the sound_font.SF2 library bundled with the application.
+  /// Play a midi note in the range between 0-127
+  /// Play with velocity in the range between 0-127
+  /// Multiple notes can be played at once as separate calls.
+  @override
+  Future<String?> playMidiNote({
+    required int midi,
+    int velocity = 64,
+  }) {
+    return _channel.invokeMethod<String>('play_midi_note', {
+      'note': midi,
+      'velocity': velocity,
+    });
+  }
+}

deprecated/flutter_midi/lib/src/platform_interface.dart

@@ -0,0 +1,63 @@
+import 'package:flutter/foundation.dart';
+import 'package:flutter/services.dart';
+import 'package:plugin_platform_interface/plugin_platform_interface.dart';
+
+import 'method_channel.dart';
+
+class FlutterMidiPlatform extends PlatformInterface {
+  FlutterMidiPlatform() : super(token: _token);
+  static final Object _token = Object();
+  static FlutterMidiPlatform _instance = MethodChannelUrlLauncher();
+  static FlutterMidiPlatform get instance => _instance;
+  static set instance(FlutterMidiPlatform instance) {
+    PlatformInterface.verifyToken(instance, _token);
+    _instance = instance;
+  }
+
+  /// Needed so that the sound font is loaded
+  /// On iOS make sure to include the sound_font.SF2 in the Runner folder.
+  /// This does not work in the simulator.
+  Future<String?> prepare({
+    required ByteData? sf2,
+    String name = 'instrument.sf2',
+  }) async {
+    debugPrint('Setup Midi..');
+    throw UnimplementedError('prepare() has not been implemented.');
+  }
+
+  /// Needed so that the sound font is loaded
+  /// On iOS make sure to include the sound_font.SF2 in the Runner folder.
+  /// This does not work in the simulator.
+  Future<String?> changeSound({
+    required ByteData? sf2,
+    String name = 'instrument.sf2',
+  }) async {
+    throw UnimplementedError('changeSound() has not been implemented.');
+  }
+
+  /// Unmute the device temporarily even if the mute switch is on or toggled in settings.
+  Future<String?> unmute() async {
+    throw UnimplementedError('canLaunch() has not been implemented.');
+  }
+
+  /// Use this when stopping the sound onTouchUp or to cancel a long file.
+  /// Not needed if playing midi onTap.
+  /// Stop with velocity in the range between 0-127
+  Future<String?> stopMidiNote({
+    required int midi,
+    int velocity = 64,
+  }) async {
+    throw UnimplementedError('stopMidiNote() has not been implemented.');
+  }
+
+  /// Play a midi note from the sound_font.SF2 library bundled with the application.
+  /// Play a midi note in the range between 0-127
+  /// Play with velocity in the range between 0-127
+  /// Multiple notes can be played at once as separate calls.
+  Future<String?> playMidiNote({
+    required int midi,
+    int velocity = 64,
+  }) async {
+    throw UnimplementedError('playMidiNote() has not been implemented.');
+  }
+}

deprecated/flutter_midi/local.properties

@@ -0,0 +1,8 @@
+## This file must *NOT* be checked into Version Control Systems,
+# as it contains information specific to your local configuration.
+#
+# Location of the SDK. This is only used by Gradle.
+# For customization when using a Version Control System, please read the
+# header note.
+#Sun Jan 27 20:59:01 EST 2019
+sdk.dir=/Users/developer/Library/Android/sdk

deprecated/flutter_midi/macos/Classes/AudioUnitMIDISynth.swift

@@ -0,0 +1,471 @@
+
+//
+//  AudioUnitMIDISynth.swift
+//  MIDISynth
+//
+//  Created by Gene De Lisa on 2/6/16.
+//  Copyright © 2016 Gene De Lisa. All rights reserved.
+//
+
+
+import Foundation
+import AudioToolbox
+import CoreAudio
+
+// swiftlint:disable function_body_length
+// swiftlint:disable type_body_length
+// swiftlint:disable file_length
+// swiftlint:disable line_length
+/// # A Core Audio MIDISynth `AudioUnit` example.
+/// This will add a polyphonic `kAudioUnitSubType_MIDISynth` audio unit to the `AUGraph`.
+///
+/// - author: Gene De Lisa
+/// - copyright: 2016 Gene De Lisa
+/// - date: February 2016
+class AudioUnitMIDISynth: NSObject {
+
+    var processingGraph: AUGraph?
+    var midisynthNode   = AUNode()
+    var ioNode          = AUNode()
+    var midisynthUnit: AudioUnit?
+    var ioUnit: AudioUnit?
+    var musicSequence: MusicSequence!
+    var musicPlayer: MusicPlayer!
+    let patch1          = UInt32(46)
+    let patch2          = UInt32(0)
+    var pitch           = UInt32(60)
+
+    var bankUrl: URL!
+
+    init(soundfont: URL) {
+        super.init()
+        prepare(soundfont:soundfont)
+       
+    }
+    
+    func prepare(soundfont: URL) {
+        bankUrl = soundfont;
+        augraphSetup()
+        loadMIDISynthSoundFont()
+        initializeGraph()
+        self.musicSequence = createMusicSequence()
+        musicPlayer = createPlayer(musicSequence)
+        loadPatches()
+        startGraph()
+    }
+
+    /// Create the `AUGraph`, the nodes and units, then wire them together.
+    func augraphSetup() {
+        var status = OSStatus(noErr)
+
+        status = NewAUGraph(&processingGraph)
+//        // AudioUtils.CheckError(status)
+
+        createIONode()
+
+        createSynthNode()
+
+        // now do the wiring. The graph needs to be open before you call AUGraphNodeInfo
+        status = AUGraphOpen(self.processingGraph!)
+//        // AudioUtils.CheckError(status)
+
+        status = AUGraphNodeInfo(self.processingGraph!, self.midisynthNode, nil, &midisynthUnit)
+        // AudioUtils.CheckError(status)
+
+        status = AUGraphNodeInfo(self.processingGraph!, self.ioNode, nil, &ioUnit)
+        // AudioUtils.CheckError(status)
+
+
+        let synthOutputElement: AudioUnitElement = 0
+        let ioUnitInputElement: AudioUnitElement = 0
+
+        status = AUGraphConnectNodeInput(self.processingGraph!,
+                                         self.midisynthNode, synthOutputElement, // srcnode, SourceOutputNumber
+            self.ioNode, ioUnitInputElement) // destnode, DestInputNumber
+
+        // AudioUtils.CheckError(status)
+    }
+
+    /// Create the Output Node and add it to the `AUGraph`.
+    func createIONode() {
+        var cd = AudioComponentDescription(
+            componentType: OSType(kAudioUnitType_Output),
+            componentSubType: OSType(kAudioUnitSubType_MIDISynth),
+            componentManufacturer: OSType(kAudioUnitManufacturer_Apple),
+            componentFlags: 0, componentFlagsMask: 0)
+        let status = AUGraphAddNode(self.processingGraph!, &cd, &ioNode)
+        // AudioUtils.CheckError(status)
+    }
+
+    /// Create the Synth Node and add it to the `AUGraph`.
+    func createSynthNode() {
+        var cd = AudioComponentDescription(
+            componentType: OSType(kAudioUnitType_MusicDevice),
+            componentSubType: OSType(kAudioUnitSubType_MIDISynth),
+            componentManufacturer: OSType(kAudioUnitManufacturer_Apple),
+            componentFlags: 0, componentFlagsMask: 0)
+//        let status = AUGraphAddNode(self.processingGraph!, &cd, &midisynthNode)
+        // AudioUtils.CheckError(status)
+    }
+
+
+
+    /// This will load the default sound font and set the synth unit's property.
+    /// - postcondition: `self.midisynthUnit` will have it's sound font url set.
+    func loadMIDISynthSoundFont() {
+
+        if var bankURL = bankUrl {
+
+            let status = AudioUnitSetProperty(
+                self.midisynthUnit!,
+                AudioUnitPropertyID(kMusicDeviceProperty_SoundBankURL),
+                AudioUnitScope(kAudioUnitScope_Global),
+                0,
+                &bankURL,
+                UInt32(MemoryLayout<URL>.size))
+
+            // AudioUtils.CheckError(status)
+            print("loaded sound font")
+        } else {
+            print("Could not load sound font")
+        }
+    }
+
+
+    /// Pre-load the patches you will use.
+    ///
+    /// Turn on `kAUMIDISynthProperty_EnablePreload` so the midisynth will load the patch data from the file into memory.
+    /// You load the patches first before playing a sequence or sending messages.
+    /// Then you turn `kAUMIDISynthProperty_EnablePreload` off. It is now in a state where it will respond to MIDI program
+    /// change messages and switch to the already cached instrument data.
+    ///
+    /// - precondition: the graph must be initialized
+    ///
+    /// [Doug's post](http://prod.lists.apple.com/archives/coreaudio-api/2016/Jan/msg00018.html)
+    func loadPatches() {
+
+        if !isGraphInitialized() {
+            fatalError("initialize graph first")
+        }
+
+        let channel = UInt32(0)
+        var enabled = UInt32(1)
+
+        var status = AudioUnitSetProperty(
+            self.midisynthUnit!,
+            AudioUnitPropertyID(kAUMIDISynthProperty_EnablePreload),
+            AudioUnitScope(kAudioUnitScope_Global),
+            0,
+            &enabled,
+            UInt32(MemoryLayout<UInt32>.size))
+        // AudioUtils.CheckError(status)
+
+        //        let bankSelectCommand = UInt32(0xB0 | 0)
+        //        status = MusicDeviceMIDIEvent(self.midisynthUnit, bankSelectCommand, 0, 0, 0)
+
+        let pcCommand = UInt32(0xC0 | channel)
+        status = MusicDeviceMIDIEvent(self.midisynthUnit!, pcCommand, patch1, 0, 0)
+        // AudioUtils.CheckError(status)
+        status = MusicDeviceMIDIEvent(self.midisynthUnit!, pcCommand, patch2, 0, 0)
+        // AudioUtils.CheckError(status)
+
+        enabled = UInt32(0)
+        status = AudioUnitSetProperty(
+            self.midisynthUnit!,
+            AudioUnitPropertyID(kAUMIDISynthProperty_EnablePreload),
+            AudioUnitScope(kAudioUnitScope_Global),
+            0,
+            &enabled,
+            UInt32(MemoryLayout<UInt32>.size))
+        // AudioUtils.CheckError(status)
+
+        // at this point the patches are loaded. You still have to send a program change at "play time" for the synth
+        // to switch to that patch
+    }
+
+
+    /// Check to see if the `AUGraph` is Initialized.
+    ///
+    /// - returns: `true` if it's running, `false` if not
+    /// - seealso: [AUGraphIsInitialized](/https://developer.apple.com/library/prerelease/ios/documentation/AudioToolbox/Reference/AUGraphServicesReference/index.html#//apple_ref/c/func/AUGraphIsInitialized)
+    func isGraphInitialized() -> Bool {
+        var outIsInitialized = DarwinBoolean(false)
+        let status = AUGraphIsInitialized(self.processingGraph!, &outIsInitialized)
+        // AudioUtils.CheckError(status)
+        return outIsInitialized.boolValue
+    }
+
+    /// Initializes the `AUGraph.
+    func initializeGraph() {
+        let status = AUGraphInitialize(self.processingGraph!)
+        // AudioUtils.CheckError(status)
+    }
+
+    /// Starts the `AUGraph`
+    func startGraph() {
+        let status = AUGraphStart(self.processingGraph!)
+        // AudioUtils.CheckError(status)
+    }
+
+    /// Check to see if the `AUGraph` is running.
+    ///
+    /// - returns: `true` if it's running, `false` if not
+    func isGraphRunning() -> Bool {
+        var isRunning = DarwinBoolean(false)
+        let status = AUGraphIsRunning(self.processingGraph!, &isRunning)
+        // AudioUtils.CheckError(status)
+        return isRunning.boolValue
+    }
+
+    /// Generate a random pitch between 36 (C below middle C) and 100.
+    ///
+    /// - postcondition: self.pitch is modified
+    func generateRandomPitch() {
+        pitch = arc4random_uniform(64) + 36 // 36 - 100
+    }
+
+//    /// Send a note on message using patch1 on channel 0
+//    func playPatch1On() {
+//
+//        let channel = UInt32(0)
+//        let noteCommand = UInt32(0x90 | channel)
+//        let pcCommand = UInt32(0xC0 | channel)
+//        var status = OSStatus(noErr)
+//
+//        generateRandomPitch()
+//        print(pitch)
+//        status = MusicDeviceMIDIEvent(self.midisynthUnit!, pcCommand, patch1, 0, 0)
+//        // AudioUtils.CheckError(status)
+//        status = MusicDeviceMIDIEvent(self.midisynthUnit!, noteCommand, pitch, 64, 0)
+//        // AudioUtils.CheckError(status)
+//    }
+//
+//    /// Send a note off message using patch1 on channel 0
+//    func playPatch1Off() {
+//        let channel = UInt32(0)
+//        let noteCommand = UInt32(0x80 | channel)
+//        var status = OSStatus(noErr)
+//        status = MusicDeviceMIDIEvent(self.midisynthUnit!, noteCommand, pitch, 0, 0)
+//        // AudioUtils.CheckError(status)
+//    }
+//
+//    /// Send a note on message using patch2 on channel 0
+//    func playPatch2On(midi: Int) {
+//
+//        let channel = UInt32(0)
+//        let noteCommand = UInt32(0x90 | channel)
+//        let pcCommand = UInt32(0xC0 | channel)
+//        var status = OSStatus(noErr)
+//        pitch = UInt32(midi)
+//        //generateRandomPitch()
+//        print(pitch)
+//        status = MusicDeviceMIDIEvent(self.midisynthUnit!, pcCommand, patch2, 0, 0)
+//        // AudioUtils.CheckError(status)
+//        status = MusicDeviceMIDIEvent(self.midisynthUnit!, noteCommand, pitch, 64, 0)
+//        // AudioUtils.CheckError(status)
+//    }
+//
+//    /// Send a note off message using patch2 on channel 0
+//    func playPatch2Off() {
+//        let channel = UInt32(0)
+//        let noteCommand = UInt32(0x80 | channel)
+//        var status = OSStatus(noErr)
+//        status = MusicDeviceMIDIEvent(self.midisynthUnit!, noteCommand, pitch, 0, 0)
+//        // AudioUtils.CheckError(status)
+//    }
+//
+
+    /// Send a note on message using patch2 on channel 0
+    func playPitch(midi: Int, velocity: Int) {
+
+        let channel = UInt32(0)
+        let noteCommand = UInt32(0x90 | channel)
+        let pcCommand = UInt32(0xC0 | channel)
+        var status = OSStatus(noErr)
+
+        status = MusicDeviceMIDIEvent(self.midisynthUnit!, pcCommand, patch2, 0, 0)
+        // AudioUtils.CheckError(status)
+        status = MusicDeviceMIDIEvent(self.midisynthUnit!, noteCommand, UInt32(midi), UInt32(velocity), 0)
+        // AudioUtils.CheckError(status)
+    }
+
+    /// Send a note off message using patch2 on channel 0
+    func stopPitch(midi: Int, velocity: Int) {
+        let channel = UInt32(0)
+        let noteCommand = UInt32(0x80 | channel)
+        var status = OSStatus(noErr)
+        status = MusicDeviceMIDIEvent(self.midisynthUnit!, noteCommand, UInt32(midi), UInt32(velocity), 0)
+        // AudioUtils.CheckError(status)
+    }
+    
+    
+    /// Create a test `MusicSequence`.
+    ///
+    /// - throws: Nothing, but it should
+    /// - todo: create an `ErrorType` ennum
+    /// - returns: a `MusicSequence`
+    func createMusicSequence() -> MusicSequence {
+        
+        var musicSequence: MusicSequence?
+        var status = NewMusicSequence(&musicSequence)
+        if status != noErr {
+            print("\(#line) bad status \(status) creating sequence")
+        }
+        
+        // add a track
+        var track: MusicTrack?
+        status = MusicSequenceNewTrack(musicSequence!, &track)
+        if status != noErr {
+            print("error creating track \(status)")
+        }
+        
+        var channel = UInt8(0)
+        // bank select msb
+        var chanmess = MIDIChannelMessage(status: 0xB0 | channel, data1: 0, data2: 0, reserved: 0)
+        status = MusicTrackNewMIDIChannelEvent(track!, 0, &chanmess)
+        if status != noErr {
+            print("creating bank select event \(status)")
+        }
+        // bank select lsb
+        chanmess = MIDIChannelMessage(status: 0xB0 | channel, data1: 32, data2: 0, reserved: 0)
+        status = MusicTrackNewMIDIChannelEvent(track!, 0, &chanmess)
+        if status != noErr {
+            print("creating bank select event \(status)")
+        }
+        
+        // program change. first data byte is the patch, the second data byte is unused for program change messages.
+        chanmess = MIDIChannelMessage(status: 0xC0 | channel, data1: UInt8(patch1), data2: 0, reserved: 0)
+        status = MusicTrackNewMIDIChannelEvent(track!, 0, &chanmess)
+        if status != noErr {
+            print("creating program change event \(status)")
+        }
+        
+        // now make some notes and put them on the track
+        var beat = MusicTimeStamp(0.0)
+        for i: UInt8 in 60...72 {
+            var mess = MIDINoteMessage(channel: channel,
+                                       note: i,
+                                       velocity: 64,
+                                       releaseVelocity: 0,
+                                       duration: 1.0 )
+            status = MusicTrackNewMIDINoteEvent(track!, beat, &mess)
+            if status != noErr {
+                print("creating new midi note event \(status)")
+            }
+            beat += 1
+        }
+        
+        // another track
+        
+        channel = UInt8(1)
+        
+        track = nil
+        status = MusicSequenceNewTrack(musicSequence!, &track)
+        if status != noErr {
+            print("error creating track \(status)")
+        }
+        
+        chanmess = MIDIChannelMessage(status: 0xB0 | channel, data1: 0, data2: 0, reserved: 0)
+        status = MusicTrackNewMIDIChannelEvent(track!, 0, &chanmess)
+        if status != noErr {
+            print("creating bank select msb event \(status)")
+        }
+        
+        chanmess = MIDIChannelMessage(status: 0xB0 | channel, data1: 32, data2: 0, reserved: 0)
+        status = MusicTrackNewMIDIChannelEvent(track!, 0, &chanmess)
+        if status != noErr {
+            print("creating bank select lsb event \(status)")
+        }
+        
+        chanmess = MIDIChannelMessage(status: 0xC0 | channel, data1: UInt8(patch2), data2: 0, reserved: 0)
+        status = MusicTrackNewMIDIChannelEvent(track!, 0, &chanmess)
+        if status != noErr {
+            print("creating program change event \(status)")
+        }
+        
+        beat = MusicTimeStamp(3.0)
+        for i: UInt8 in 60...72 {
+            var mess = MIDINoteMessage(channel: channel,
+                                       note: i,
+                                       velocity: 36,
+                                       releaseVelocity: 0,
+                                       
+                                       duration: 1.0 )
+            status = MusicTrackNewMIDINoteEvent(track!, beat, &mess)
+            if status != OSStatus(noErr) {
+                print("creating new midi note event \(status)")
+            }
+            beat += 1
+        }
+        
+        // associate the AUGraph with the sequence.
+        status = MusicSequenceSetAUGraph(musicSequence!, self.processingGraph)
+        
+        // Let's see it
+        CAShow(UnsafeMutablePointer<MusicSequence>(musicSequence!))
+        
+        return musicSequence!
+    }
+    
+    /// Create a `MusicPlayer` with the specified sequence.
+    ///
+    /// - parameters:
+    ///   - musicSequence: a valid `MusicSequence` instance
+    /// - throws: Nothing, but it should
+    /// - todo: create an `ErrorType` ennum
+    /// - returns: a `MusicPlayer`
+    func createPlayer(_ musicSequence: MusicSequence) -> MusicPlayer {
+        var musicPlayer: MusicPlayer?
+        
+        var status = NewMusicPlayer(&musicPlayer)
+        if status != OSStatus(noErr) {
+            print("bad status \(status) creating player")
+            // AudioUtils.CheckError(status)
+        }
+        
+        status = MusicPlayerSetSequence(musicPlayer!, musicSequence)
+        if status != OSStatus(noErr) {
+            print("setting sequence \(status)")
+            // AudioUtils.CheckError(status)
+        }
+        status = MusicPlayerPreroll(musicPlayer!)
+        if status != OSStatus(noErr) {
+            print("prerolling player \(status)")
+            // AudioUtils.CheckError(status)
+        }
+        return musicPlayer!
+    }
+    
+    /// Make the `MusicPlayer` play its sequence
+    /// - throws: Nothing, but it should
+    /// - todo: create an `ErrorType` ennum
+    func musicPlayerPlay() {
+        var status = noErr
+        var playing: DarwinBoolean = false
+        status = MusicPlayerIsPlaying(musicPlayer, &playing)
+        if playing != false {
+            status = MusicPlayerStop(musicPlayer)
+            if status != noErr {
+                print("Error stopping \(status)")
+                // AudioUtils.CheckError(status)
+                return
+            }
+        }
+        
+        status = MusicPlayerSetTime(musicPlayer, 0)
+        if status != noErr {
+            print("setting time \(status)")
+            // AudioUtils.CheckError(status)
+            return
+        }
+        
+        status = MusicPlayerStart(musicPlayer)
+        if status != noErr {
+            print("Error starting \(status)")
+            // AudioUtils.CheckError(status)
+            return
+        }
+    }
+    
+}
+

deprecated/flutter_midi/macos/Classes/AudioUtils.swift

@@ -0,0 +1,440 @@
+//
+//  AudioUtils.swift
+//  SwiftMusic
+//
+//  Created by Gene De Lisa on 2/28/15.
+//  Copyright (c) 2015 Gene De Lisa. All rights reserved.
+//
+
+import Foundation
+import AudioToolbox
+import CoreAudio
+
+// swiftlint:disable function_body_length
+// swiftlint:disable type_body_length
+// swiftlint:disable file_length
+
+
+import CoreServices
+
+import AVFoundation
+
+
+/// # A few utilities for using Core Audio.
+///
+/// I started with [Adamson's](http://amzn.to/1KG0yWe) Objective-C CheckError method. The translation
+/// into Swift was a bit of a pain.
+///
+/// - author: Gene De Lisa
+/// - copyright: 2016 Gene De Lisa
+/// - date: February 2016
+open class AudioUtils {
+    
+    fileprivate init() {
+    }
+    
+    
+    
+    ///  Create a String from an encoded 4char.
+    ///
+    ///  - parameter n: The encoded 4char
+    ///
+    ///  - returns: The String representation.
+    class func stringFrom4(_ n: Int) -> String {
+        
+        var scalar = UnicodeScalar((n >> 24) & 255)
+        if !scalar!.isASCII {
+            return ""
+        }
+        var s = String(describing: scalar)
+        
+        scalar = UnicodeScalar((n >> 16) & 255)
+        if !scalar!.isASCII {
+            return ""
+        }
+        s.append(String(describing: scalar))
+        
+        scalar = UnicodeScalar((n >> 8) & 255)
+        if !scalar!.isASCII {
+            return ""
+        }
+        s.append(String(describing: scalar))
+        
+        scalar = UnicodeScalar(n & 255)
+        if !scalar!.isASCII {
+            return ""
+        }
+        s.append(String(describing: scalar))
+        
+        
+        return s
+    }
+    
+    ///  Create a String from an encoded 4char.
+    ///
+    ///  - parameter status: an `OSStatus` containing the encoded 4char.
+    ///
+    ///  - returns: The String representation.
+    class func stringFrom4(_ status: OSStatus) -> String {
+        let n = Int(status)
+        return stringFrom4(n)
+    }
+    
+    ///  Create an encoded 4char from a String.
+    ///
+    ///  - parameter s: The String.
+    ///
+    ///  - returns: the encoded Int
+    class func valueFromString4(_ s: String) -> Int {
+        var n = 0
+        var r = ""
+        
+        if s.count > 4 {
+            let startIndex = s.index(s.startIndex, offsetBy: 4)
+            //            r = s.substring(from: startIndex)
+            r = String(s[startIndex...])
+        } else {
+            r = s + "    "
+            let startIndex = s.index(s.startIndex, offsetBy: 4)
+            //            r = r.substring(to: startIndex)
+            r = String(r[...startIndex])
+            
+        }
+        
+        for UniCodeChar in r.unicodeScalars {
+            n = (n << 8) + (Int(UniCodeChar.value) & 255)
+        }
+        
+        return n
+    }
+    
+    
+//    // osx only
+//    let s = UTCreateStringForOSType(error)
+//
+//            let e = UInt32(error)
+//    //        let swapped = CFSwapInt32HostToBig(e)
+//            let swapped = e
+//
+//            let b1 = Character(UnicodeScalar(swapped & 0b00001))
+//            let b2 = Character(UnicodeScalar(swapped & 0b00010))
+//            let b3 = Character(UnicodeScalar(swapped & 0b00100))
+//            let b4 = Character(UnicodeScalar(swapped & 0b01000))
+//            print("check error string: \(b1) \(b2) \(b3) \(b4)")
+//        func OSTypeFrom(string : String) -> UInt {
+//            var result : UInt = 0
+//            if let data = string.dataUsingEncoding(NSMacOSRomanStringEncoding) {
+//                let bytes = UnsafePointer<UInt8>(data.bytes)
+//                for i in 0..<data.length {
+//                    result = result << 8 + UInt(bytes[i])
+//                }
+//            }
+//            return result
+//        }
+//
+//
+//        func stringValue(unicodeValue: Int) -> String {
+//            var stringValue = ""
+//            var value = unicodeValue
+//            for _ in 0..<4 {
+//                stringValue = String(UnicodeScalar(value & 255)) + stringValue
+//                value = value / 256
+//            }
+//            return stringValue
+//        }
+    
+    
+    
+    #if os(tvOS)
+    /// Check the status code
+    ///
+    /// - parameter error: The status to check.
+    /// - todo: Finish this for tvOS
+    class func CheckError(status: OSStatus) {
+    if status == noErr {
+    print("no error")
+    return
+    }
+    print("error \(status)")
+    }
+    #elseif os(iOS)
+    ///  Print a description of the status code to stdout if it's an error.
+    ///
+    ///  - parameter status: the status to check.
+    class func CheckError(_ status: OSStatus) {
+    
+    if status == noErr {
+    return
+    }
+    
+    let s = stringFrom4(status)
+    print("error chars '\(s)'")
+    
+    
+    switch status {
+    // AudioToolbox
+    case kAUGraphErr_NodeNotFound:
+    print("kAUGraphErr_NodeNotFound")
+    
+    case kAUGraphErr_OutputNodeErr:
+    print("kAUGraphErr_OutputNodeErr")
+    
+    case kAUGraphErr_InvalidConnection:
+    print("kAUGraphErr_InvalidConnection")
+    
+    case kAUGraphErr_CannotDoInCurrentContext:
+    print("kAUGraphErr_CannotDoInCurrentContext")
+    
+    case kAUGraphErr_InvalidAudioUnit:
+    print("kAUGraphErr_InvalidAudioUnit")
+    
+    case kMIDIInvalidClient :
+    print("kMIDIInvalidClient ")
+    
+    
+    case kMIDIInvalidPort :
+    print("kMIDIInvalidPort ")
+    
+    
+    case kMIDIWrongEndpointType :
+    print("kMIDIWrongEndpointType")
+    
+    
+    case kMIDINoConnection :
+    print("kMIDINoConnection ")
+    
+    
+    case kMIDIUnknownEndpoint :
+    print("kMIDIUnknownEndpoint ")
+    
+    
+    case kMIDIUnknownProperty :
+    print("kMIDIUnknownProperty ")
+    
+    
+    case kMIDIWrongPropertyType :
+    print("kMIDIWrongPropertyType ")
+    
+    
+    case kMIDINoCurrentSetup :
+    print("kMIDINoCurrentSetup ")
+    
+    
+    case kMIDIMessageSendErr :
+    print("kMIDIMessageSendErr ")
+    
+    
+    case kMIDIServerStartErr :
+    print("kMIDIServerStartErr ")
+    
+    
+    case kMIDISetupFormatErr :
+    print("kMIDISetupFormatErr ")
+    
+    
+    case kMIDIWrongThread :
+    print("kMIDIWrongThread ")
+    
+    
+    case kMIDIObjectNotFound :
+    print("kMIDIObjectNotFound ")
+    
+    
+    case kMIDIIDNotUnique :
+    print("kMIDIIDNotUnique ")
+    
+    
+    case kAudioToolboxErr_InvalidSequenceType :
+    print("kAudioToolboxErr_InvalidSequenceType ")
+    
+    case kAudioToolboxErr_TrackIndexError :
+    print("kAudioToolboxErr_TrackIndexError ")
+    
+    case kAudioToolboxErr_TrackNotFound :
+    print("kAudioToolboxErr_TrackNotFound ")
+    
+    case kAudioToolboxErr_EndOfTrack :
+    print("kAudioToolboxErr_EndOfTrack ")
+    
+    case kAudioToolboxErr_StartOfTrack :
+    print("kAudioToolboxErr_StartOfTrack ")
+    
+    case kAudioToolboxErr_IllegalTrackDestination:
+    print("kAudioToolboxErr_IllegalTrackDestination")
+    
+    case kAudioToolboxErr_NoSequence :
+    print("kAudioToolboxErr_NoSequence ")
+    
+    case kAudioToolboxErr_InvalidEventType    :
+    print("kAudioToolboxErr_InvalidEventType")
+    
+    case kAudioToolboxErr_InvalidPlayerState:
+    print("kAudioToolboxErr_InvalidPlayerState")
+    
+    case kAudioUnitErr_InvalidProperty    :
+    print("kAudioUnitErr_InvalidProperty")
+    
+    case kAudioUnitErr_InvalidParameter    :
+    print("kAudioUnitErr_InvalidParameter")
+    
+    case kAudioUnitErr_InvalidElement :
+    print("kAudioUnitErr_InvalidElement")
+    
+    case kAudioUnitErr_NoConnection    :
+    print("kAudioUnitErr_NoConnection")
+    
+    case kAudioUnitErr_FailedInitialization    :
+    print("kAudioUnitErr_FailedInitialization")
+    
+    case kAudioUnitErr_TooManyFramesToProcess:
+    print("kAudioUnitErr_TooManyFramesToProcess")
+    
+    case kAudioUnitErr_InvalidFile:
+    print("kAudioUnitErr_InvalidFile")
+    
+    case kAudioUnitErr_FormatNotSupported :
+    print("kAudioUnitErr_FormatNotSupported")
+    
+    case kAudioUnitErr_Uninitialized:
+    print("kAudioUnitErr_Uninitialized")
+    
+    case kAudioUnitErr_InvalidScope :
+    print("kAudioUnitErr_InvalidScope")
+    
+    case kAudioUnitErr_PropertyNotWritable :
+    print("kAudioUnitErr_PropertyNotWritable")
+    
+    case kAudioUnitErr_InvalidPropertyValue :
+    print("kAudioUnitErr_InvalidPropertyValue")
+    
+    case kAudioUnitErr_PropertyNotInUse :
+    print("kAudioUnitErr_PropertyNotInUse")
+    
+    case kAudioUnitErr_Initialized :
+    print("kAudioUnitErr_Initialized")
+    
+    case kAudioUnitErr_InvalidOfflineRender :
+    print("kAudioUnitErr_InvalidOfflineRender")
+    
+    case kAudioUnitErr_Unauthorized :
+    print("kAudioUnitErr_Unauthorized")
+    
+    case kAudioUnitErr_CannotDoInCurrentContext:
+    print("kAudioUnitErr_CannotDoInCurrentContext")
+    
+    case kAudioUnitErr_FailedInitialization:
+    print("kAudioUnitErr_FailedInitialization")
+    
+    case kAudioUnitErr_FileNotSpecified:
+    print("kAudioUnitErr_FileNotSpecified")
+    
+    case kAudioUnitErr_FormatNotSupported:
+    print("kAudioUnitErr_FormatNotSupported")
+    
+    case kAudioUnitErr_IllegalInstrument:
+    print("kAudioUnitErr_IllegalInstrument")
+    
+    case kAudioUnitErr_Initialized:
+    print("kAudioUnitErr_Initialized")
+    
+    case kAudioUnitErr_InstrumentTypeNotFound:
+    print("kAudioUnitErr_InstrumentTypeNotFound")
+    
+    case kAudioUnitErr_InvalidElement:
+    print("kAudioUnitErr_InvalidElement")
+    
+    case kAudioUnitErr_InvalidFile:
+    print("kAudioUnitErr_InvalidFile")
+    
+    case kAudioUnitErr_InvalidOfflineRender:
+    print("kAudioUnitErr_InvalidOfflineRender")
+    
+    case kAudioUnitErr_InvalidParameter:
+    print("kAudioUnitErr_InvalidParameter")
+    
+    case kAudioUnitErr_InvalidProperty:
+    print("kAudioUnitErr_InvalidProperty")
+    
+    case kAudioUnitErr_InvalidPropertyValue:
+    print("kAudioUnitErr_InvalidPropertyValue")
+    
+    case kAudioUnitErr_InvalidScope:
+    print("kAudioUnitErr_InvalidScope")
+    
+    case kAudioUnitErr_NoConnection:
+    print("kAudioUnitErr_NoConnection")
+    
+    case kAudioUnitErr_PropertyNotInUse:
+    print("kAudioUnitErr_PropertyNotInUse")
+    
+    case kAudioUnitErr_PropertyNotWritable:
+    print("kAudioUnitErr_PropertyNotWritable")
+    
+    case kAudioUnitErr_TooManyFramesToProcess:
+    print("kAudioUnitErr_TooManyFramesToProcess")
+    
+    case kAudioUnitErr_Unauthorized:
+    print("kAudioUnitErr_Unauthorized")
+    
+    case kAudioUnitErr_Uninitialized:
+    print("kAudioUnitErr_Uninitialized")
+    
+    case kAudioUnitErr_UnknownFileType:
+    print("kAudioUnitErr_UnknownFileType")
+    
+    case kAudioComponentErr_InstanceInvalidated:
+    print("kAudioComponentErr_InstanceInvalidated ")
+    
+    case kAudioComponentErr_DuplicateDescription:
+    print("kAudioComponentErr_DuplicateDescription ")
+    
+    case kAudioComponentErr_UnsupportedType:
+    print("kAudioComponentErr_UnsupportedType ")
+    
+    case kAudioComponentErr_TooManyInstances:
+    print("kAudioComponentErr_TooManyInstances ")
+    
+    case kAudioComponentErr_NotPermitted:
+    print("kAudioComponentErr_NotPermitted ")
+    
+    case kAudioComponentErr_InitializationTimedOut:
+    print("kAudioComponentErr_InitializationTimedOut ")
+    
+    case kAudioComponentErr_InvalidFormat:
+    print("kAudioComponentErr_InvalidFormat ")
+    
+    // in CoreAudioTypes
+    case kAudio_UnimplementedError :
+    print("kAudio_UnimplementedError")
+    
+    case kAudio_FileNotFoundError :
+    print("kAudio_FileNotFoundError")
+    
+    case kAudio_FilePermissionError :
+    print("kAudio_FilePermissionError")
+    
+    case kAudio_TooManyFilesOpenError :
+    print("kAudio_TooManyFilesOpenError")
+    
+    case kAudio_BadFilePathError :
+    print("kAudio_BadFilePathError")
+    
+    case kAudio_ParamError :
+    print("kAudio_ParamError") // the infamous -50
+    
+    case kAudio_MemFullError :
+    print("kAudio_MemFullError")
+    
+    
+    default:
+    print("huh?")
+    print("bad status \(status)")
+    //print("\(__LINE__) bad status \(error)")
+    }
+    }
+    
+    #endif
+    
+    
+}
+

deprecated/flutter_midi/macos/Classes/FlutterMidiPlugin.swift

@@ -0,0 +1,61 @@
+import Cocoa
+import FlutterMacOS
+import AVFoundation
+
+public class FlutterMidiPlugin: NSObject, FlutterPlugin {
+  var message = "Please Send Message"
+  var _arguments = [String: Any]()
+  var au: AudioUnitMIDISynth!
+  
+  public static func register(with registrar: FlutterPluginRegistrar) {
+    let channel = FlutterMethodChannel(name: "flutter_midi", binaryMessenger: registrar.messenger)
+    let instance = FlutterMidiPlugin()
+    registrar.addMethodCallDelegate(instance, channel: channel)
+  }
+
+  public func handle(_ call: FlutterMethodCall, result: @escaping FlutterResult) {
+      switch call.method {
+      case "prepare_midi":
+        let map = call.arguments as? Dictionary<String, String>
+       let data = map?["path"]
+      let url = URL(fileURLWithPath: data!)
+         au = AudioUnitMIDISynth(soundfont: url)
+          print("Valid URL: \(url)")
+        let message = "Prepared Sound Font"
+        result(message)
+    case "change_sound":
+        let map = call.arguments as? Dictionary<String, String>
+        let data = map?["path"]
+        let url = URL(fileURLWithPath: data!)
+        au.prepare(soundfont: url)
+        print("Valid URL: \(url)")
+        let message = "Prepared Sound Font"
+        result(message)
+      case "unmute":
+        do {
+//            try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback)
+        } catch {
+            print(error)
+        }
+        let message = "unmuted Device"
+        result(message)
+      case "play_midi_note":
+        _arguments = call.arguments as! [String : Any];
+        let midi = _arguments["note"] as? Int
+        let velocity = _arguments["velocity"] as? Int
+        au.playPitch(midi: midi ?? 60, velocity: velocity ?? 64)
+        let message = "Playing: \(String(describing: midi!))"
+        result(message)
+      case "stop_midi_note":
+        _arguments = call.arguments as! [String : Any];
+        let midi = _arguments["note"] as? Int
+        let velocity = _arguments["velocity"] as? Int
+      au.stopPitch(midi: midi ?? 60, velocity: velocity ?? 64)
+        let message = "Stopped: \(String(describing: midi!))"
+        result(message)
+      default:
+        result(FlutterMethodNotImplemented)
+        break
+    }
+  }
+}

deprecated/flutter_midi/macos/Flutter/GeneratedPluginRegistrant.swift

@@ -0,0 +1,12 @@
+//
+//  Generated file. Do not edit.
+//
+
+import FlutterMacOS
+import Foundation
+
+import path_provider_macos
+
+func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
+  PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))
+}

deprecated/flutter_midi/macos/flutter_midi.podspec

@@ -0,0 +1,22 @@
+#
+# To learn more about a Podspec see http://guides.cocoapods.org/syntax/podspec.html.
+# Run `pod lib lint flutter_midi.podspec' to validate before publishing.
+#
+Pod::Spec.new do |s|
+  s.name             = 'flutter_midi'
+  s.version          = '0.0.1'
+  s.summary          = 'A new flutter plugin project.'
+  s.description      = <<-DESC
+A new flutter plugin project.
+                       DESC
+  s.homepage         = 'http://example.com'
+  s.license          = { :file => '../LICENSE' }
+  s.author           = { 'Your Company' => 'email@example.com' }
+  s.source           = { :path => '.' }
+  s.source_files     = 'Classes/**/*'
+  s.dependency 'FlutterMacOS'
+
+  s.platform = :osx, '10.11'
+  s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES' }
+  s.swift_version = '5.0'
+end

deprecated/flutter_midi/pubspec.yaml

@@ -0,0 +1,35 @@
+name: flutter_midi
+description: A FLutter Plugin to Play midi on iOS and Android.
+version: 1.1.1
+author: Rody Davis <rody.davis.jr@gmail.com>
+homepage: https://github.com/rodydavis/flutter_midi
+
+environment:
+  sdk: ">=2.12.0 <3.0.0"
+
+dependencies:
+  flutter:
+    sdk: flutter
+  flutter_web_plugins:
+    sdk: flutter
+  js: ^0.6.3
+  path_provider: ^2.0.5
+  plugin_platform_interface: ^2.0.1
+  tonic: ^0.2.4
+
+flutter:
+  plugin:
+    platforms:
+      ios:
+        pluginClass: FlutterMidiPlugin
+      android:
+        package: com.appleeducate.fluttermidi
+        pluginClass: FlutterMidiPlugin
+      # web:
+      #   pluginClass: FlutterMidiPlugin
+      #   fileName: flutter_midi_web.dart
+      # macos:
+      #   pluginClass: FlutterMidiPlugin
+dev_dependencies:
+  flutter_test:
+    sdk: flutter