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abalabahaha
2016-08-05 08:11:45 +09:00
parent c2163a29c0
commit 2b7f88ae3a
29 changed files with 7636 additions and 869 deletions
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102
lib/Voice/VolumeTransformer.js
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@@ -1,13 +1,91 @@
'use strict';var _createClass=(function(){function defineProperties(target,props){for(var i=0;i < props.length;i++) {var descriptor=props[i];descriptor.enumerable = descriptor.enumerable || false;descriptor.configurable = true;if('value' in descriptor)descriptor.writable = true;Object.defineProperty(target,descriptor.key,descriptor);}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor;};})();function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError('Cannot call a class as a function');}}function _inherits(subClass,superClass){if(typeof superClass !== 'function' && superClass !== null){throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass);}subClass.prototype = Object.create(superClass && superClass.prototype,{constructor:{value:subClass,enumerable:false,writable:true,configurable:true}});if(superClass)Object.setPrototypeOf?Object.setPrototypeOf(subClass,superClass):subClass.__proto__ = superClass;}var Transform=require('stream').Transform; /**
'use strict';
var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
function _inherits(subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
var Transform = require('stream').Transform;
/**
* @see https://github.com/reneraab/pcm-volume/blob/master/index.js Inspired by this script
*/var Volume=(function(_Transform){_inherits(Volume,_Transform);function Volume(volume){_classCallCheck(this,Volume);_Transform.call(this);this.set(volume);} // Set the volume so that a value of 0.5 is half the perceived volume and
// 2.0 is double the perceived volume.
Volume.prototype.setVolumeLogarithmic = function setVolumeLogarithmic(value){this.volume = Math.pow(value,1.660964);}; // Set the volume to a value specified as decibels.
Volume.prototype.setVolumeDecibels = function setVolumeDecibels(db){this.volume = Math.pow(10,db / 20);};Volume.prototype.get = function get(){return this.volume;};Volume.prototype.set = function set(volume){this.volume = volume === undefined?1:volume;};Volume.prototype._transform = function _transform(buffer,encoding,callback){var out=new Buffer(buffer.length);for(var i=0;i < buffer.length;i += 2) { // Check whether the index is actually in range - sometimes it's possible
// that it skips ahead too far before the end condition of the for can
// kick in.
if(i >= buffer.length - 1){break;} // Read Int16, multiple with multiplier and round down
//console.log(this.volume, this.multiplier, buffer.readInt16LE(i));
var uint=Math.floor(this.multiplier * buffer.readInt16LE(i)); // Ensure value stays within 16bit
uint = Math.min(32767,uint);uint = Math.max(-32767,uint); // Write 2 new bytes into other buffer;
out.writeInt16LE(uint,i);}this.push(out);callback();};_createClass(Volume,[{key:'volume',get:function get(){return this._volume === undefined?1:this._volume;},set:function set(value){this._volume = value;}},{key:'multiplier',get:function get(){return this.volume;}}]);return Volume;})(Transform);module.exports = Volume;
*/
var Volume = (function (_Transform) {
_inherits(Volume, _Transform);
function Volume(volume) {
_classCallCheck(this, Volume);
_Transform.call(this);
this.set(volume);
}
// Set the volume so that a value of 0.5 is half the perceived volume and
// 2.0 is double the perceived volume.
Volume.prototype.setVolumeLogarithmic = function setVolumeLogarithmic(value) {
this.volume = Math.pow(value, 1.660964);
};
// Set the volume to a value specified as decibels.
Volume.prototype.setVolumeDecibels = function setVolumeDecibels(db) {
this.volume = Math.pow(10, db / 20);
};
Volume.prototype.get = function get() {
return this.volume;
};
Volume.prototype.set = function set(volume) {
this.volume = volume === undefined ? 1 : volume;
};
Volume.prototype._transform = function _transform(buffer, encoding, callback) {
var out = new Buffer(buffer.length);
for (var i = 0; i < buffer.length; i += 2) {
// Check whether the index is actually in range - sometimes it's possible
// that it skips ahead too far before the end condition of the for can
// kick in.
if (i >= buffer.length - 1) {
break;
}
// Read Int16, multiple with multiplier and round down
//console.log(this.volume, this.multiplier, buffer.readInt16LE(i));
var uint = Math.floor(this.multiplier * buffer.readInt16LE(i));
// Ensure value stays within 16bit
uint = Math.min(32767, uint);
uint = Math.max(-32767, uint);
// Write 2 new bytes into other buffer;
out.writeInt16LE(uint, i);
}
this.push(out);
callback();
};
_createClass(Volume, [{
key: 'volume',
get: function get() {
return this._volume === undefined ? 1 : this._volume;
},
set: function set(value) {
this._volume = value;
}
}, {
key: 'multiplier',
get: function get() {
return this.volume;
}
}]);
return Volume;
})(Transform);
module.exports = Volume;