From a0bad7ed9fb5d85a7c9b7bee412ed95c49bb835f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jo=C3=A3o=20Pedro=20Kaspary?= <joaopedrokaspary@hotmail.com>
Date: Thu, 21 Feb 2019 11:37:16 -0300
Subject: [PATCH] =?UTF-8?q?Corre=C3=A7=C3=A3o=20da=20atualiza=C3=A7=C3=A3o?=
 =?UTF-8?q?=20dos=20termos=20do=20google?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 index.html                      |   3 +-
 js/main.js                      |  18 +-
 js/recorderjs/recorder.js       |   7 +-
 js/recorderjs/recorderWorker.js | 285 ++++++++++++++++----------------
 4 files changed, 160 insertions(+), 153 deletions(-)

diff --git a/index.html b/index.html
index 47f562a..9a468fd 100644
--- a/index.html
+++ b/index.html
@@ -6,6 +6,7 @@
 
 	<script src="js/audiodisplay.js"></script>
 	<script src="js/recorderjs/recorder.js"></script>
+	<script src="js/recorderjs/recorderWorker.js"></script>
 	<script src="js/main.js"></script>
 	<style>
 	html { overflow: hidden; }
@@ -69,4 +70,4 @@
 		<a id="save" href="#"><img src="img/save.svg"></a>
 	</div>
 </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/js/main.js b/js/main.js
index 29689d6..d25f9c5 100644
--- a/js/main.js
+++ b/js/main.js
@@ -15,7 +15,7 @@
 
 window.AudioContext = window.AudioContext || window.webkitAudioContext;
 
-var audioContext = new AudioContext();
+var audioContext = null;
 var audioInput = null,
     realAudioInput = null,
     inputPoint = null,
@@ -62,6 +62,7 @@ function toggleRecording( e ) {
         // start recording
         if (!audioRecorder)
             return;
+        // $(window).ready(initAudio);
         e.classList.add("recording");
         audioRecorder.clear();
         audioRecorder.record();
@@ -136,6 +137,9 @@ function toggleMono() {
 }
 
 function gotStream(stream) {
+
+    audioContext = new AudioContext();
+
     inputPoint = audioContext.createGain();
 
     // Create an AudioNode from the stream.
@@ -159,12 +163,12 @@ function gotStream(stream) {
 }
 
 function initAudio() {
-        if (!navigator.getUserMedia)
-            navigator.getUserMedia = navigator.webkitGetUserMedia || navigator.mozGetUserMedia;
-        if (!navigator.cancelAnimationFrame)
-            navigator.cancelAnimationFrame = navigator.webkitCancelAnimationFrame || navigator.mozCancelAnimationFrame;
-        if (!navigator.requestAnimationFrame)
-            navigator.requestAnimationFrame = navigator.webkitRequestAnimationFrame || navigator.mozRequestAnimationFrame;
+    if (!navigator.getUserMedia)
+        navigator.getUserMedia = navigator.webkitGetUserMedia || navigator.mozGetUserMedia;
+    if (!navigator.cancelAnimationFrame)
+        navigator.cancelAnimationFrame = navigator.webkitCancelAnimationFrame || navigator.mozCancelAnimationFrame;
+    if (!navigator.requestAnimationFrame)
+        navigator.requestAnimationFrame = navigator.webkitRequestAnimationFrame || navigator.mozRequestAnimationFrame;
 
     navigator.getUserMedia(
         {
diff --git a/js/recorderjs/recorder.js b/js/recorderjs/recorder.js
index b469ba4..e1f0599 100644
--- a/js/recorderjs/recorder.js
+++ b/js/recorderjs/recorder.js
@@ -19,7 +19,7 @@ DEALINGS IN THE SOFTWARE.
 
 (function(window){
 
-  var WORKER_PATH = 'js/recorderjs/recorderWorker.js';
+  //var WORKER_PATH = 'js/recorderjs/recorderWorker.js';
 
   var Recorder = function(source, cfg){
     var config = cfg || {};
@@ -30,8 +30,9 @@ DEALINGS IN THE SOFTWARE.
     } else {
        this.node = this.context.createScriptProcessor(bufferLen, 2, 2);
     }
-   
-    var worker = new Worker(config.workerPath || WORKER_PATH);
+    
+    
+    var worker = new Worker(URL.createObjectURL(new Blob(["("+worker_function.toString()+")()"], {type: 'text/javascript'})));
     worker.postMessage({
       command: 'init',
       config: {
diff --git a/js/recorderjs/recorderWorker.js b/js/recorderjs/recorderWorker.js
index 57bdd51..844d30a 100644
--- a/js/recorderjs/recorderWorker.js
+++ b/js/recorderjs/recorderWorker.js
@@ -16,146 +16,147 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY
 CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
 DEALINGS IN THE SOFTWARE.
 */
-
-var recLength = 0,
-  recBuffersL = [],
-  recBuffersR = [],
-  sampleRate;
-
-this.onmessage = function(e){
-  switch(e.data.command){
-    case 'init':
-      init(e.data.config);
-      break;
-    case 'record':
-      record(e.data.buffer);
-      break;
-    case 'exportWAV':
-      exportWAV(e.data.type);
-      break;
-    case 'exportMonoWAV':
-      exportMonoWAV(e.data.type);
-      break;
-    case 'getBuffers':
-      getBuffers();
-      break;
-    case 'clear':
-      clear();
-      break;
-  }
-};
-
-function init(config){
-  sampleRate = config.sampleRate;
-}
-
-function record(inputBuffer){
-  recBuffersL.push(inputBuffer[0]);
-  recBuffersR.push(inputBuffer[1]);
-  recLength += inputBuffer[0].length;
-}
-
-function exportWAV(type){
-  var bufferL = mergeBuffers(recBuffersL, recLength);
-  var bufferR = mergeBuffers(recBuffersR, recLength);
-  var interleaved = interleave(bufferL, bufferR);
-  var dataview = encodeWAV(interleaved);
-  var audioBlob = new Blob([dataview], { type: type });
-
-  this.postMessage(audioBlob);
-}
-
-function exportMonoWAV(type){
-  var bufferL = mergeBuffers(recBuffersL, recLength);
-  var dataview = encodeWAV(bufferL, true);
-  var audioBlob = new Blob([dataview], { type: type });
-
-  this.postMessage(audioBlob);
-}
-
-function getBuffers() {
-  var buffers = [];
-  buffers.push( mergeBuffers(recBuffersL, recLength) );
-  buffers.push( mergeBuffers(recBuffersR, recLength) );
-  this.postMessage(buffers);
-}
-
-function clear(){
-  recLength = 0;
-  recBuffersL = [];
-  recBuffersR = [];
-}
-
-function mergeBuffers(recBuffers, recLength){
-  var result = new Float32Array(recLength);
-  var offset = 0;
-  for (var i = 0; i < recBuffers.length; i++){
-    result.set(recBuffers[i], offset);
-    offset += recBuffers[i].length;
-  }
-  return result;
-}
-
-function interleave(inputL, inputR){
-  var length = inputL.length + inputR.length;
-  var result = new Float32Array(length);
-
-  var index = 0,
-    inputIndex = 0;
-
-  while (index < length){
-    result[index++] = inputL[inputIndex];
-    result[index++] = inputR[inputIndex];
-    inputIndex++;
-  }
-  return result;
-}
-
-function floatTo16BitPCM(output, offset, input){
-  for (var i = 0; i < input.length; i++, offset+=2){
-    var s = Math.max(-1, Math.min(1, input[i]));
-    output.setInt16(offset, s < 0 ? s * 0x8000 : s * 0x7FFF, true);
-  }
-}
-
-function writeString(view, offset, string){
-  for (var i = 0; i < string.length; i++){
-    view.setUint8(offset + i, string.charCodeAt(i));
-  }
-}
-
-function encodeWAV(samples, mono){
-  var buffer = new ArrayBuffer(44 + samples.length * 2);
-  var view = new DataView(buffer);
-
-  /* RIFF identifier */
-  writeString(view, 0, 'RIFF');
-  /* file length */
-  view.setUint32(4, 32 + samples.length * 2, true);
-  /* RIFF type */
-  writeString(view, 8, 'WAVE');
-  /* format chunk identifier */
-  writeString(view, 12, 'fmt ');
-  /* format chunk length */
-  view.setUint32(16, 16, true);
-  /* sample format (raw) */
-  view.setUint16(20, 1, true);
-  /* channel count */
-  view.setUint16(22, mono ? 1 : 2, true);
-  /* sample rate */
-  view.setUint32(24, sampleRate, true);
-  /* byte rate (sample rate * channels * bytes per sample) */
-  view.setUint32(28, sampleRate * (mono ? 1 : 2) * 2, true);
-  /* block align (channel count * bytes per sample) */
-  view.setUint16(32, (mono ? 1 : 2) * 2, true);
-  /* bits per sample */
-  view.setUint16(34, 16, true);
-  /* data chunk identifier */
-  writeString(view, 36, 'data');
-  /* data chunk length */
-  view.setUint32(40, samples.length * 2, true);
-
-  floatTo16BitPCM(view, 44, samples);
-
-  return view;
+function worker_function() {
+    var recLength = 0,
+    recBuffersL = [],
+    recBuffersR = [],
+    sampleRate;
+
+    this.onmessage = function(e){
+    switch(e.data.command){
+        case 'init':
+        init(e.data.config);
+        break;
+        case 'record':
+        record(e.data.buffer);
+        break;
+        case 'exportWAV':
+        exportWAV(e.data.type);
+        break;
+        case 'exportMonoWAV':
+        exportMonoWAV(e.data.type);
+        break;
+        case 'getBuffers':
+        getBuffers();
+        break;
+        case 'clear':
+        clear();
+        break;
+    }
+    };
+
+    function init(config){
+    sampleRate = config.sampleRate;
+    }
+
+    function record(inputBuffer){
+    recBuffersL.push(inputBuffer[0]);
+    recBuffersR.push(inputBuffer[1]);
+    recLength += inputBuffer[0].length;
+    }
+
+    function exportWAV(type){
+    var bufferL = mergeBuffers(recBuffersL, recLength);
+    var bufferR = mergeBuffers(recBuffersR, recLength);
+    var interleaved = interleave(bufferL, bufferR);
+    var dataview = encodeWAV(interleaved);
+    var audioBlob = new Blob([dataview], { type: type });
+
+    this.postMessage(audioBlob);
+    }
+
+    function exportMonoWAV(type){
+    var bufferL = mergeBuffers(recBuffersL, recLength);
+    var dataview = encodeWAV(bufferL, true);
+    var audioBlob = new Blob([dataview], { type: type });
+
+    this.postMessage(audioBlob);
+    }
+
+    function getBuffers() {
+    var buffers = [];
+    buffers.push( mergeBuffers(recBuffersL, recLength) );
+    buffers.push( mergeBuffers(recBuffersR, recLength) );
+    this.postMessage(buffers);
+    }
+
+    function clear(){
+    recLength = 0;
+    recBuffersL = [];
+    recBuffersR = [];
+    }
+
+    function mergeBuffers(recBuffers, recLength){
+    var result = new Float32Array(recLength);
+    var offset = 0;
+    for (var i = 0; i < recBuffers.length; i++){
+        result.set(recBuffers[i], offset);
+        offset += recBuffers[i].length;
+    }
+    return result;
+    }
+
+    function interleave(inputL, inputR){
+    var length = inputL.length + inputR.length;
+    var result = new Float32Array(length);
+
+    var index = 0,
+        inputIndex = 0;
+
+    while (index < length){
+        result[index++] = inputL[inputIndex];
+        result[index++] = inputR[inputIndex];
+        inputIndex++;
+    }
+    return result;
+    }
+
+    function floatTo16BitPCM(output, offset, input){
+    for (var i = 0; i < input.length; i++, offset+=2){
+        var s = Math.max(-1, Math.min(1, input[i]));
+        output.setInt16(offset, s < 0 ? s * 0x8000 : s * 0x7FFF, true);
+    }
+    }
+
+    function writeString(view, offset, string){
+    for (var i = 0; i < string.length; i++){
+        view.setUint8(offset + i, string.charCodeAt(i));
+    }
+    }
+
+    function encodeWAV(samples, mono){
+    var buffer = new ArrayBuffer(44 + samples.length * 2);
+    var view = new DataView(buffer);
+
+    /* RIFF identifier */
+    writeString(view, 0, 'RIFF');
+    /* file length */
+    view.setUint32(4, 32 + samples.length * 2, true);
+    /* RIFF type */
+    writeString(view, 8, 'WAVE');
+    /* format chunk identifier */
+    writeString(view, 12, 'fmt ');
+    /* format chunk length */
+    view.setUint32(16, 16, true);
+    /* sample format (raw) */
+    view.setUint16(20, 1, true);
+    /* channel count */
+    view.setUint16(22, mono ? 1 : 2, true);
+    /* sample rate */
+    view.setUint32(24, sampleRate, true);
+    /* byte rate (sample rate * channels * bytes per sample) */
+    view.setUint32(28, sampleRate * (mono ? 1 : 2) * 2, true);
+    /* block align (channel count * bytes per sample) */
+    view.setUint16(32, (mono ? 1 : 2) * 2, true);
+    /* bits per sample */
+    view.setUint16(34, 16, true);
+    /* data chunk identifier */
+    writeString(view, 36, 'data');
+    /* data chunk length */
+    view.setUint32(40, samples.length * 2, true);
+
+    floatTo16BitPCM(view, 44, samples);
+
+    return view;
+    }
 }