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example added

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pull/14/head
Samir 7 years ago
parent 42d56c4a1a
commit 14254cc819
11 changed files with 39 additions and 253 deletions
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13
.babelrc
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@ -1,13 +0,0 @@
{
"presets": [
[
"es2015",
{
"modules": false
}
]
],
"plugins": [
"external-helpers"
]
}

23
example/index.html
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@ -7,32 +7,25 @@
<body> <body>
<div id="container" style="width: 400px; margin: 0 auto;"> <div id="container" style="width: 400px; margin: 0 auto;">
<h2>It should play audio if everying went well!</h2> <h2>It should play audio if everying went well!</h2>
<p>Yea! recoreded audio is not in good qualtity though! </p>
</div> </div>
<script> <script>
window.onload = function() { window.onload = function() {
var channels = 1, var socketURL = 'ws://localhost:8080';
socketURL = 'ws://localhost:8080'; var player = new PCMPlayer({
encoding: '16bitInt',
var decoder = new Decoder.OpusToPCM({ channels: 2,
channels: channels sampleRate: 8000,
}); flushingTime: 1000
decoder.on('decode', function(pcmData) {
player.feed(pcmData);
}); });
var player = new PCMPlayer(channels, decoder.getSampleRate());
var ws = new WebSocket(socketURL); var ws = new WebSocket(socketURL);
ws.binaryType = 'arraybuffer'; ws.binaryType = 'arraybuffer';
ws.addEventListener('message',function(event) { ws.addEventListener('message',function(event) {
var data = new Uint8Array(event.data); var data = new Uint8Array(event.data);
decoder.decode(data); player.feed(data);
}); });
} }
</script> </script>
<script type="text/javascript" src="../dist/opus_to_pcm.js"></script> <script type="text/javascript" src="../pcm-player.js"></script>
<script type="text/javascript" src="player/pcm_player.js"></script>
</body> </body>
</html> </html>

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example/server/16bit-8000.raw
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example/server/32bit (float)-8000.raw
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44
example/server/server.js
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@ -1,25 +1,19 @@
const WebSocket = require('ws'); const WebSocket = require('ws');
const fs = require('fs'); const fs = require('fs');
const opusPackets = './raw_opus/'; const pcm_file = './16bit-8000.raw';
let packets = [], let interval = 0,
source = [], sampleRate = 8000,
interval = 0, channels = 2,
count = 0, bytesChunk = (sampleRate * channels),
offset = 0,
pcmData,
wss; wss;
fs.readdir(opusPackets, (err, files) => { fs.readFile(pcm_file, (err, data) => {
files.forEach(function(file) {
fs.readFile(opusPackets+file, (err, data) => {
if (err) throw err; if (err) throw err;
source.push(data); pcmData = data;
count++;
if (files.length == count) {
packets = source.slice();
openSocket(); openSocket();
}
});
});
}); });
@ -32,26 +26,24 @@ function openSocket() {
clearInterval(interval); clearInterval(interval);
} }
interval = setInterval(function() { interval = setInterval(function() {
sendPacket(); sendData();
}, 10); }, 500);
}); });
} }
function sendPacket() { function sendData() {
let packet; let payload;
if (packets.length == 0 && interval){ if (offset >= pcmData.length) {
clearInterval(interval); clearInterval(interval);
packets = source.slice(); offset = 0;
return; return;
} }
packet = packets.shift(); payload = pcmData.subarray(offset, (offset + bytesChunk));
offset += bytesChunk;
wss.clients.forEach(function each(client) { wss.clients.forEach(function each(client) {
if (client.readyState === WebSocket.OPEN) { if (client.readyState === WebSocket.OPEN) {
client.send(packet); client.send(payload);
if (packets.length % 100 == 0){
console.log(`Remainging packets ${packets.length}`);
}
} }
}); });
} }

77
karma.conf.js
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@ -1,77 +0,0 @@
// Karma configuration
// Generated on Fri Nov 03 2017 16:10:03 GMT+0600 (+06)
module.exports = function(config) {
config.set({
// base path that will be used to resolve all patterns (eg. files, exclude)
basePath: '',
// frameworks to use
// available frameworks: https://npmjs.org/browse/keyword/karma-adapter
frameworks: ['mocha'],
// list of files / patterns to load in the browser
files: [
'test/*.js'
],
// list of files to exclude
exclude: [
],
// preprocess matching files before serving them to the browser
// available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
preprocessors: {
'test/*.js': ['rollup']
},
rollupPreprocessor: {
plugins: [
require('rollup-plugin-node-globals')(),
require('rollup-plugin-node-builtins')(),
require('rollup-plugin-babel')()
],
format: 'iife', // Helps prevent naming collisions.
name: 'Decoder', // Required for 'iife' format.
sourcemap: 'inline' // Sensible for testing.
},
// test results reporter to use
// possible values: 'dots', 'progress'
// available reporters: https://npmjs.org/browse/keyword/karma-reporter
reporters: ['progress'],
// web server port
port: 9876,
// enable / disable colors in the output (reporters and logs)
colors: true,
// level of logging
// possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
logLevel: config.LOG_INFO,
// enable / disable watching file and executing tests whenever any file changes
autoWatch: false,
// start these browsers
// available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
browsers: ['Chrome'],
// Continuous Integration mode
// if true, Karma captures browsers, runs the tests and exits
singleRun: true,
// Concurrency level
// how many browser should be started simultaneous
concurrency: Infinity
})
}

19
package.json
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@ -14,24 +14,7 @@
}, },
"author": "Samir Das", "author": "Samir Das",
"devDependencies": { "devDependencies": {
"babel-plugin-external-helpers": "^6.22.0", "ws": "^3.3.0"
"babel-preset-es2015": "^6.24.1",
"babel-register": "^6.26.0",
"karma": "^1.7.1",
"karma-chrome-launcher": "^2.2.0",
"karma-mocha": "^1.3.0",
"karma-rollup-preprocessor": "^5.0.1",
"mocha": "^4.0.1",
"path": "^0.12.7",
"rollup": "^0.50.0",
"rollup-plugin-babel": "^2.7.1",
"rollup-plugin-buble": "^0.16.0",
"rollup-plugin-eslint": "^3.0.0",
"rollup-plugin-node-builtins": "^2.1.2",
"rollup-plugin-node-globals": "^1.1.0",
"rollup-plugin-node-resolve": "^3.0.0",
"rollup-plugin-replace": "^1.1.1",
"rollup-plugin-uglify": "^1.0.1"
}, },
"dependencies": {} "dependencies": {}
} }

19
src/pcm-player.js → pcm-player.js
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@ -3,16 +3,16 @@ function PCMPlayer(option) {
} }
PCMPlayer.prototype.init = function(option) { PCMPlayer.prototype.init = function(option) {
var default = { var defaults = {
encoding: '16bitInt', encoding: '16bitInt',
channels: 1, channels: 1,
sampleRate: 8000, sampleRate: 8000,
flushingTime: 200 flushingTime: 1000
}; };
this.option = Object.assign({}, default, option); this.option = Object.assign({}, defaults, option);
this.samples = new Float32Array(); this.samples = new Float32Array();
this.flush = this.flush.bind(this); this.flush = this.flush.bind(this);
this.interval = setInterval(this.flush, this.flushingTime); this.interval = setInterval(this.flush, this.option.flushingTime);
this.maxValue = this.getMaxValue(); this.maxValue = this.getMaxValue();
this.typedArray = this.getTypedArray(); this.typedArray = this.getTypedArray();
this.createContext(); this.createContext();
@ -31,10 +31,10 @@ PCMPlayer.prototype.getMaxValue = function () {
PCMPlayer.prototype.getTypedArray = function () { PCMPlayer.prototype.getTypedArray = function () {
var typedArrays = { var typedArrays = {
'8bitInt': 'Int8Array', '8bitInt': Int8Array,
'16bitInt': 'Int16Array', '16bitInt': Int16Array,
'32bitInt': 'Int32Array', '32bitInt': Int32Array,
'32bitFloat': 'Float32Array' '32bitFloat': Float32Array
} }
return typedArrays[this.option.encoding] ? typedArrays[this.option.encoding] : typedArrays['16bitInt']; return typedArrays[this.option.encoding] ? typedArrays[this.option.encoding] : typedArrays['16bitInt'];
@ -53,7 +53,7 @@ PCMPlayer.prototype.isTypedArray = function(data) {
}; };
PCMPlayer.prototype.feed = function(data) { PCMPlayer.prototype.feed = function(data) {
if (!this.isTypedArray(isTypedArray)) return; if (!this.isTypedArray(data)) return;
data = this.getFormatedValue(data); data = this.getFormatedValue(data);
var tmp = new Float32Array(this.samples.length + data.length); var tmp = new Float32Array(this.samples.length + data.length);
tmp.set(this.samples, 0); tmp.set(this.samples, 0);
@ -114,6 +114,7 @@ PCMPlayer.prototype.flush = function() {
if (this.startTime < this.audioCtx.currentTime) { if (this.startTime < this.audioCtx.currentTime) {
this.startTime = this.audioCtx.currentTime; this.startTime = this.audioCtx.currentTime;
} }
console.log('start vs current '+this.startTime+' vs '+this.audioCtx.currentTime);
bufferSource.buffer = audioBuffer; bufferSource.buffer = audioBuffer;
bufferSource.connect(this.gainNode); bufferSource.connect(this.gainNode);
bufferSource.start(this.startTime); bufferSource.start(this.startTime);

28
rollup.config.js
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/* global process */
// Rollup plugins
import babel from 'rollup-plugin-babel';
import eslint from 'rollup-plugin-eslint';
import replace from 'rollup-plugin-replace';
import uglify from 'rollup-plugin-uglify';
export default {
input: 'src/opus-to-pcm.js',
output: {
file: 'dist/opus_to_pcm.js',
format: 'iife',
name: 'Decoder',
sourcemap: false, //inline
},
plugins: [
eslint(),
babel({
exclude: 'node_modules/**',
}),
replace({
exclude: 'node_modules/**',
ENV: JSON.stringify(process.env.NODE_ENV || 'development'),
}),
(process.env.NODE_ENV === 'production' && uglify()),
],
};

31
test/event.js
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@ -1,31 +0,0 @@
import {equal, deepEqual} from 'assert';
import Event from '../src/utils/event.js';
var event = new Event('XYZ');
var callback = function() {
};
describe('event tests --', function() {
beforeEach(function(){
event.offAll();
event.on('topic1',callback);
event.on('topic1',callback);
event.on('topic2',callback);
});
it('listener should be 2 for the topic1', function() {
equal(event.listener.topic1.length, 2);
});
it('event dispatcher should be return true for a successful dispatcher', function() {
equal(event.dispatch('topic1', true), true);
});
it('listener should be zero after removing all listeners', function() {
event.offAll();
deepEqual(event.listener, {});
});
});

34
test/ogg.js
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import {equal} from 'assert';
import Ogg from '../src/utils/ogg.js';
var channel = 1,
decoder = new Ogg(channel),
audioCtx = new (window.AudioContext || window.webkitAudioContext)(),
sampleRate = audioCtx.sampleRate;
describe('Ogg tests -- ', function() {
it('sample rate should be same system sample rate', function() {
equal(decoder.getSampleRate(), sampleRate);
});
it('magic Signature of ID header should be Opus Head', function() {
var idHeader = decoder.getIDHeader();
var dv = new DataView(idHeader.buffer);
equal(dv.getUint32(0, true), 1937076303);
equal(dv.getUint32(4, true), 1684104520);
});
it('magic Signature of comment header should be Opus Tags', function() {
var commonHeader = decoder.getCommentHeader();
var dv = new DataView(commonHeader.buffer);
equal(dv.getUint32(0, true), 1937076303);
equal(dv.getUint32(4, true), 1936154964);
});
it('page header should be started with OggS', function() {
var segmentData = new Uint8Array(20);
var page = decoder.getPage(segmentData, 4);
var dv = new DataView(page.buffer);
equal(dv.getUint32(0, true), 1399285583);
});
});
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