Add ogg and wav support, fail gracefully on bad decode

ogg.js and vorbis.js are intentionally missing pending fixes to their compile.

gulpfile.js

@@ -9,7 +9,7 @@ var order = require("gulp-order");
 var del = require('del');
 var jshint = require('gulp-jshint');
 
-gulp.task('default', ['css', 'mp3', 'minify'], function() {
+gulp.task('default', ['css', 'audio', 'minify'], function() {
     
 });
 
@@ -31,10 +31,15 @@ gulp.task('css', function(){
     .pipe(gulp.dest('css'));
 });
 
-gulp.task("mp3", function () {
-  return gulp.src("src/js/mp3/*.js")
+gulp.task("audio", function () {
+  gulp.src(["src/js/audio/aurora.js", "src/js/audio/mp3.js"])
+  .pipe(concat("audio-min.js"))
+  .pipe(uglify())
+  .pipe(gulp.dest("lib"));
+    
+  gulp.src(["src/js/audio/ogg.js", "src/js/audio/vorbis.js"])
+  .pipe(concat("oggvorbis.js"))
   .pipe(uglify())
-    .pipe(concat("mp3-min.js"))
   .pipe(gulp.dest("lib"));
 });
 
@@ -63,7 +68,8 @@ gulp.task('clean', function() {
     return del([
         'lib/hues-min.js',
         'lib/hues-min.map',
-        'lib/mp3-min.js',
+        'lib/audio-min.js',
+        'lib/oggvorbis.js',
         'css',
         'release']);
 });
@@ -72,7 +78,8 @@ gulp.task('release', ['default', 'lint'], function() {
     gulp.src([
         'css/hues-min.css',
         'lib/hues-min.js',
-        'lib/mp3-min.js',
+        'lib/audio-min.js',
+        'lib/oggvorbis.js',
         'fonts/**/*',
         'img/**/*',
         'index.html',

lib/workers/audio-worker.js

@@ -1,39 +1,53 @@
-// Use mp3.js and aurora.js for dev
-// Use mp3-min.js for release
-//importScripts('aurora.js');
-//importScripts('mp3.js');
-importScripts('../mp3-min.js');
+importScripts('../audio-min.js');
 
 // Flash value
 var LAME_DELAY_START = 2258;
 var LAME_DELAY_END = 0;
 
 var deinterleaveAndTrim = function(buffer, asset) {
-    // because MP3 is bad, we nuke silence
     var channels = asset.format.channelsPerFrame,
-        len = buffer.length / channels;
+        len = buffer.length / channels,
+        newLen, start;
+        
+    // because MP3 is bad, we nuke silence
+    if(asset.format.formatID == "mp3") {
         newLen = len - LAME_DELAY_START - LAME_DELAY_END;
-        result = new Float32Array(newLen * channels);
+        start = LAME_DELAY_START;
+    } else {
+        newLen = len;
+        start = 0;
+    }
+    var result = new Float32Array(newLen * channels);
         
     for(var sample = 0; sample < newLen; sample++) {
         for(var channel = 0; channel < channels; channel++) {
-            result[channel*newLen + sample] = buffer[(sample+LAME_DELAY_START)*channels + channel];
+            result[channel*newLen + sample] = buffer[(sample+start)*channels + channel];
         }
     }
     return result;
 }
 
 self.addEventListener('message', function(e) {
+    if(!e.data.ogg) {
+        importScripts('../oggvorbis.js');
+    }
+    
     // To see if things are working, we can ping the worker
     if(e.data.ping) {
         self.postMessage({ping: true});
         return;
     }
     
-    var arrayBuffer = e.data;
+    var arrayBuffer = e.data.buffer;
     
     var asset = AV.Asset.fromBuffer(arrayBuffer);
-    // Any errors are thrown up the chain to our Promises
+    
+    // On error we still want to restore the audio file
+    asset.on("error", function(error) {
+        self.postMessage({arrayBuffer : arrayBuffer,
+            error: error},
+            [arrayBuffer]);
+    });
     
     asset.decodeToBuffer(function(buffer) {
         var fixedBuffer = deinterleaveAndTrim(buffer, asset);

src/js/HuesEditor.js

@@ -278,6 +278,15 @@ HuesEditor.prototype.loadAudio = function(editor) {
     // load audio
     this.blobToArrayBuffer(file)
     .then(buffer => {
+        // Is this buffer even decodable?
+        let testSong = {test: buffer};
+        return this.core.soundManager.loadBuffer(testSong, "test")
+               // keep the buffer moving through the chain
+               // remember it's been passed through to a worker, so we update the reference
+               .then(() => {
+                   return testSong.test;
+               });
+    }).then(buffer => {
         this.song[editor._sound] = buffer;
         // Save filename for XML export
         let noExt = file.name.replace(/\.[^/.]+$/, "");
@@ -827,7 +836,7 @@ HuesEditor.prototype.uiCreateSingleEditor = function(title, soundName, rhythmNam
     
     let fileInput = document.createElement("input");
     fileInput.type ="file";
-    fileInput.accept="audio/mp3";
+    fileInput.accept="audio/mp3|audio/wav|audio/ogg";
     fileInput.multiple = false;
     fileInput.onchange = this.loadAudio.bind(this, container);
     let load = this.createButton("Load " + title.replace(/ /g,""), rightHeader);

src/js/HuesSettings.js

@@ -27,7 +27,7 @@
    - Go to the HTML and edit the `defaults` object instead!
  */
 HuesSettings.prototype.defaultSettings = {
-    // Location relative to root - where do the mp3/zip workers live
+    // Location relative to root - where do the audio/zip workers live
     // This is required because Web Workers need an absolute path
     workersPath : "lib/workers/",
     // Debugging var, for loading zips or not

src/js/ResourcePack.js

@@ -57,7 +57,7 @@ function Respack() {
     this.loadedFromURL = false;
 }
 
-Respack.prototype.audioExtensions = new RegExp("\\.(mp3|ogg)$", "i");
+Respack.prototype.audioExtensions = new RegExp("\\.(mp3|ogg|wav)$", "i");
 Respack.prototype.imageExtensions = new RegExp("\\.(png|gif|jpg|jpeg)$", "i");
 Respack.prototype.animRegex = new RegExp("(.*?)_\\d+$");
 
@@ -225,6 +225,9 @@ Respack.prototype.parseSong = function(file) {
             case "ogg":
                 mime = "audio/ogg";
                 break;
+            case "wav":
+                mime = "audio/wav";
+                break;
             default:
                 mime = "application/octet-stream";
         }

src/js/SoundManager.js

@@ -32,6 +32,7 @@ function SoundManager(core) {
 
     /* Lower level audio and timing info */
     this.context = null; // Audio context, Web Audio API
+    this.oggSupport = false;
     this.buildSource = null;
     this.loopSource = null;
     this.buildup = null;
@@ -68,8 +69,8 @@ SoundManager.prototype.init = function() {
                 window.AudioContext = window.AudioContext || window.webkitAudioContext;
                 this.context = new window.AudioContext();
                 // These don't always exist
-                this.context.suspend = this.context.suspend || Promise.resolve();
-                this.context.resume = this.context.resume || Promise.resolve();
+                this.context.suspend = this.context.suspend || Promise.resolve;
+                this.context.resume = this.context.resume || Promise.resolve;
                 this.gainNode = this.context.createGain();
                 this.gainNode.connect(this.context.destination);
             } catch(e) {
@@ -77,28 +78,39 @@ SoundManager.prototype.init = function() {
                 return;
             }
             resolve();
-        }).then(response => {
+        }).then(() => {
+            // check for .ogg support - if not, we'll have to load the ogg decoder
             return new Promise((resolve, reject) => {
-                // See if our MP3 decoder is working
-                let mp3Worker;
+                this.context.decodeAudioData(miniOgg, success => {
+                        this.oggSupport = true;
+                        resolve();
+                    }, error => {
+                        this.oggSupport = false;
+                        resolve();
+                });
+            });
+        }).then(() => {
+            return new Promise((resolve, reject) => {          
+                // See if our audio decoder is working
+                let audioWorker;
                 try {
-                    mp3Worker = this.createWorker();
+                    audioWorker = this.createWorker();
                 } catch(e) {
                     console.log(e);
-                    reject(Error("MP3 Worker cannot be started - correct path set in defaults?"));
+                    reject(Error("Audio Worker cannot be started - correct path set in defaults?"));
+                    return;
                 }
                 let pingListener = event => {
-                    mp3Worker.removeEventListener('message', pingListener);
-                    mp3Worker.terminate();
+                    audioWorker.terminate();
                     resolve();
                 };
-                mp3Worker.addEventListener('message', pingListener, false);
-                mp3Worker.addEventListener('error', () => {
-                    reject(Error("MP3 Worker cannot be started - correct path set in defaults?"));
+                audioWorker.addEventListener('message', pingListener, false);
+                audioWorker.addEventListener('error', () => {
+                    reject(Error("Audio Worker cannot be started - correct path set in defaults?"));
                 }, false);
-                mp3Worker.postMessage({ping:true});
+                audioWorker.postMessage({ping:true, ogg:this.oggSupport});
             });
-        }).then(response => {
+        }).then(() => {
             return new Promise((resolve, reject) => {
                 // iOS and other some mobile browsers - unlock the context as
                 // it starts in a suspended state
@@ -158,7 +170,10 @@ SoundManager.prototype.playSong = function(song, playBuild, forcePlay) {
         // To prevent race condition if you press "next" twice fast
         if(song != this.song) {
             // Stop processing - silently ignored in the catch below
-            throw Error("Song not playable - ignoring!");
+            throw {
+                name: "SoundManagerRace",
+                message: "Song not playable - ignoring!"
+            };
         }
         
         this.buildup = buffers.buildup;
@@ -179,10 +194,14 @@ SoundManager.prototype.playSong = function(song, playBuild, forcePlay) {
     }).then(() => {
         this.playing = true;
     }).catch(error => {
+        if(error.name == "SoundManagerRace") {
             // Just to ignore it if the song was invalid
             // Log it in case it's something weird
-        console.log(error);
+            console.log("SoundManager couldn't play song", error);
             return;
+        } else {
+            throw error;
+        }
     });
     return p;
 };
@@ -313,27 +332,53 @@ SoundManager.prototype.loadSong = function(song) {
 };
 
 SoundManager.prototype.loadBuffer = function(song, soundName) {
+    let buffer = song[soundName];
+    
+    // Is this an ogg file?
+    let view = new Uint8Array(buffer);
+    // Signature for ogg file: OggS
+    if(this.oggSupport && view[0] == 0x4F && view[1] == 0x67 && view[2] == 0x67 && view[3] == 0x53) {
+        // As we don't control decodeAudioData, we cannot do fast transfers and must copy
+        let backup = buffer.slice(0);
         return new Promise((resolve, reject) => {
-        let mp3Worker = this.createWorker();
+            this.context.decodeAudioData(buffer, result => {
+                    resolve(result);
+                }, error => {
+                    reject(Error("decodeAudioData failed to load track"));
+            });
+        }).then(result => {
+            // restore copied buffer
+            song[soundName] = backup;
+            return result;
+        });
+    } else { // Use our JS decoder
+        return new Promise((resolve, reject) => {
+            let audioWorker = this.createWorker();
             
-        mp3Worker.addEventListener('error', () => {
-            reject(Error("MP3 Worker failed to convert track"));
+            audioWorker.addEventListener('error', () => {
+                reject(Error("Audio Worker failed to convert track"));
             }, false);
             
-        mp3Worker.addEventListener('message', e => {
+            audioWorker.addEventListener('message', e => {
                 let decoded = e.data;
-            mp3Worker.terminate();
+                audioWorker.terminate();
                 
                 // restore transferred buffer
                 song[soundName] = decoded.arrayBuffer;
+                if(decoded.error) {
+                    reject(new Error(decoded.error));
+                    return;
+                }
                 // Convert to real audio buffer
                 let audio = this.audioBufFromRaw(decoded.rawAudio);
                 resolve(audio);
             }, false);
             
             // transfer the buffer to save time
-        mp3Worker.postMessage(song[soundName], [song[soundName]]);
+            audioWorker.postMessage({buffer: buffer, ogg: this.oggSupport}, [buffer]);
         });
+   }
+
 };
 
 // Converts continuous PCM array to Web Audio API friendly format
@@ -342,20 +387,16 @@ SoundManager.prototype.audioBufFromRaw = function(raw) {
     let channels = raw.channels;
     let samples = buffer.length/channels;
     let audioBuf = this.context.createBuffer(channels, samples, raw.sampleRate);
-    //let audioBuf = this.context.createBuffer(1, buffer.length, raw.sampleRate);
-    //audioBuf.copyToChannel(buffer, 0, 0);
     for(let i = 0; i < channels; i++) {
-        //console.log("Making buffer at offset",i*samples,"and length",samples,".Original buffer is",channels,"channels and",buffer.length,"elements");
         // Offset is in bytes, length is in elements
         let channel = new Float32Array(buffer.buffer , i * samples * 4, samples);
-        //console.log(channel);
         audioBuf.copyToChannel(channel, i, 0);
     }
     return audioBuf;
 };
 
 SoundManager.prototype.createWorker = function() {
-    return new Worker(this.core.settings.defaults.workersPath + 'mp3-worker.js');
+    return new Worker(this.core.settings.defaults.workersPath + 'audio-worker.js');
 };
 
 SoundManager.prototype.initVisualiser = function(bars) {
@@ -516,6 +557,95 @@ SoundManager.prototype.fadeOut = function(callback) {
     setTimeout(callback, 2000);
 };
 
+let miniOggRaw = 
+"T2dnUwACAAAAAAAAAADFYgAAAAAAAMLKRdwBHgF2b3JiaXMAAAAAAUSsAAAA" +
+"AAAAgLsAAAAAAAC4AU9nZ1MAAAAAAAAAAAAAxWIAAAEAAACcKCV2Dzv/////" +
+"////////////MgN2b3JiaXMrAAAAWGlwaC5PcmcgbGliVm9yYmlzIEkgMjAx" +
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+"VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVNU3TNE0gNGQlAAAEAMBijcHl" +
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+"gICAAAAAAABAAAAAgIBPZ2dTAAQBAAAAAAAAAMViAAACAAAA22A/JwIBAQAK";
+
+// write the bytes of the string to an ArrayBuffer
+let miniOggBin = atob(miniOggRaw);
+let miniOgg = new ArrayBuffer(miniOggBin.length);
+let view = new Uint8Array(miniOgg);
+for (var i = 0; i < miniOggBin.length; i++) {
+    view[i] = miniOggBin.charCodeAt(i);
+}
+
 window.SoundManager = SoundManager;
 
 })(window, document);

src/js/audio/aurora.js

@@ -1730,6 +1730,8 @@ Demuxer = (function(_super) {
 
   formats = [];
   
+  Demuxer.test = function() {return formats};
+
   Demuxer.register = function(demuxer) {
     return formats.push(demuxer);
   };