@vikasietum_tecknology/record-rtc
Version:
record-rtc is a library based on recordrtc library. In this forked version of the original library we have optimized the memory management. The video recording is stored in IndexDB in chunks.
855 lines (697 loc) • 23.4 kB
JavaScript
// ----------------------------------------------------------------------------
// Buzz, a Javascript HTML5 Audio library
// v 1.0.4 beta
// Licensed under the MIT license.
// http://buzz.jaysalvat.com/
// ----------------------------------------------------------------------------
// Copyright (C) 2011 Jay Salvat
// http://jaysalvat.com/
// ----------------------------------------------------------------------------
// 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.
// ----------------------------------------------------------------------------
var buzz = {
defaults: {
autoplay: false,
duration: 5000,
formats: [],
loop: false,
placeholder: '--',
preload: 'metadata',
volume: 80
},
types: {
'mp3': 'audio/mpeg',
'ogg': 'audio/ogg',
'wav': 'audio/wav',
'aac': 'audio/aac',
'm4a': 'audio/x-m4a'
},
sounds: [],
el: document.createElement( 'audio' ),
sound: function( src, options ) {
options = options || {};
var pid = 0,
events = [],
eventsOnce = {},
supported = buzz.isSupported();
// publics
this.load = function() {
if ( !supported ) {
return this;
}
this.sound.load();
return this;
};
this.play = function() {
if ( !supported ) {
return this;
}
this.sound.play();
return this;
};
this.togglePlay = function() {
if ( !supported ) {
return this;
}
if ( this.sound.paused ) {
this.sound.play();
} else {
this.sound.pause();
}
return this;
};
this.pause = function() {
if ( !supported ) {
return this;
}
this.sound.pause();
return this;
};
this.isPaused = function() {
if ( !supported ) {
return null;
}
return this.sound.paused;
};
this.stop = function() {
if ( !supported ) {
return this;
}
this.setTime( this.getDuration() );
this.sound.pause();
return this;
};
this.isEnded = function() {
if ( !supported ) {
return null;
}
return this.sound.ended;
};
this.loop = function() {
if ( !supported ) {
return this;
}
this.sound.loop = 'loop';
this.bind( 'ended.buzzloop', function() {
this.currentTime = 0;
this.play();
});
return this;
};
this.unloop = function() {
if ( !supported ) {
return this;
}
this.sound.removeAttribute( 'loop' );
this.unbind( 'ended.buzzloop' );
return this;
};
this.mute = function() {
if ( !supported ) {
return this;
}
this.sound.muted = true;
return this;
};
this.unmute = function() {
if ( !supported ) {
return this;
}
this.sound.muted = false;
return this;
};
this.toggleMute = function() {
if ( !supported ) {
return this;
}
this.sound.muted = !this.sound.muted;
return this;
};
this.isMuted = function() {
if ( !supported ) {
return null;
}
return this.sound.muted;
};
this.setVolume = function( volume ) {
if ( !supported ) {
return this;
}
if ( volume < 0 ) {
volume = 0;
}
if ( volume > 100 ) {
volume = 100;
}
this.volume = volume;
this.sound.volume = volume / 100;
return this;
};
this.getVolume = function() {
if ( !supported ) {
return this;
}
return this.volume;
};
this.increaseVolume = function( value ) {
return this.setVolume( this.volume + ( value || 1 ) );
};
this.decreaseVolume = function( value ) {
return this.setVolume( this.volume - ( value || 1 ) );
};
this.setTime = function( time ) {
if ( !supported ) {
return this;
}
this.whenReady( function() {
this.sound.currentTime = time;
});
return this;
};
this.getTime = function() {
if ( !supported ) {
return null;
}
var time = Math.round( this.sound.currentTime * 100 ) / 100;
return isNaN( time ) ? buzz.defaults.placeholder : time;
};
this.setPercent = function( percent ) {
if ( !supported ) {
return this;
}
return this.setTime( buzz.fromPercent( percent, this.sound.duration ) );
};
this.getPercent = function() {
if ( !supported ) {
return null;
}
var percent = Math.round( buzz.toPercent( this.sound.currentTime, this.sound.duration ) );
return isNaN( percent ) ? buzz.defaults.placeholder : percent;
};
this.setSpeed = function( duration ) {
if ( !supported ) {
return this;
}
this.sound.playbackRate = duration;
};
this.getSpeed = function() {
if ( !supported ) {
return null;
}
return this.sound.playbackRate;
};
this.getDuration = function() {
if ( !supported ) {
return null;
}
var duration = Math.round( this.sound.duration * 100 ) / 100;
return isNaN( duration ) ? buzz.defaults.placeholder : duration;
};
this.getPlayed = function() {
if ( !supported ) {
return null;
}
return timerangeToArray( this.sound.played );
};
this.getBuffered = function() {
if ( !supported ) {
return null;
}
return timerangeToArray( this.sound.buffered );
};
this.getSeekable = function() {
if ( !supported ) {
return null;
}
return timerangeToArray( this.sound.seekable );
};
this.getErrorCode = function() {
if ( supported && this.sound.error ) {
return this.sound.error.code;
}
return 0;
};
this.getErrorMessage = function() {
if ( !supported ) {
return null;
}
switch( this.getErrorCode() ) {
case 1:
return 'MEDIA_ERR_ABORTED';
case 2:
return 'MEDIA_ERR_NETWORK';
case 3:
return 'MEDIA_ERR_DECODE';
case 4:
return 'MEDIA_ERR_SRC_NOT_SUPPORTED';
default:
return null;
}
};
this.getStateCode = function() {
if ( !supported ) {
return null;
}
return this.sound.readyState;
};
this.getStateMessage = function() {
if ( !supported ) {
return null;
}
switch( this.getStateCode() ) {
case 0:
return 'HAVE_NOTHING';
case 1:
return 'HAVE_METADATA';
case 2:
return 'HAVE_CURRENT_DATA';
case 3:
return 'HAVE_FUTURE_DATA';
case 4:
return 'HAVE_ENOUGH_DATA';
default:
return null;
}
};
this.getNetworkStateCode = function() {
if ( !supported ) {
return null;
}
return this.sound.networkState;
};
this.getNetworkStateMessage = function() {
if ( !supported ) {
return null;
}
switch( this.getNetworkStateCode() ) {
case 0:
return 'NETWORK_EMPTY';
case 1:
return 'NETWORK_IDLE';
case 2:
return 'NETWORK_LOADING';
case 3:
return 'NETWORK_NO_SOURCE';
default:
return null;
}
};
this.set = function( key, value ) {
if ( !supported ) {
return this;
}
this.sound[ key ] = value;
return this;
};
this.get = function( key ) {
if ( !supported ) {
return null;
}
return key ? this.sound[ key ] : this.sound;
};
this.bind = function( types, func ) {
if ( !supported ) {
return this;
}
types = types.split( ' ' );
var that = this,
efunc = function( e ) { func.call( that, e ); };
for( var t = 0; t < types.length; t++ ) {
var type = types[ t ],
idx = type;
type = idx.split( '.' )[ 0 ];
events.push( { idx: idx, func: efunc } );
this.sound.addEventListener( type, efunc, true );
}
return this;
};
this.unbind = function( types ) {
if ( !supported ) {
return this;
}
types = types.split( ' ' );
for( var t = 0; t < types.length; t++ ) {
var idx = types[ t ],
type = idx.split( '.' )[ 0 ];
for( var i = 0; i < events.length; i++ ) {
var namespace = events[ i ].idx.split( '.' );
if ( events[ i ].idx == idx || ( namespace[ 1 ] && namespace[ 1 ] == idx.replace( '.', '' ) ) ) {
this.sound.removeEventListener( type, events[ i ].func, true );
delete events[ i ];
}
}
}
return this;
};
this.bindOnce = function( type, func ) {
if ( !supported ) {
return this;
}
var that = this;
eventsOnce[ pid++ ] = false;
this.bind( pid + type, function() {
if ( !eventsOnce[ pid ] ) {
eventsOnce[ pid ] = true;
func.call( that );
}
that.unbind( pid + type );
});
};
this.trigger = function( types ) {
if ( !supported ) {
return this;
}
types = types.split( ' ' );
for( var t = 0; t < types.length; t++ ) {
var idx = types[ t ];
for( var i = 0; i < events.length; i++ ) {
var eventType = events[ i ].idx.split( '.' );
if ( events[ i ].idx == idx || ( eventType[ 0 ] && eventType[ 0 ] == idx.replace( '.', '' ) ) ) {
var evt = document.createEvent('HTMLEvents');
evt.initEvent( eventType[ 0 ], false, true );
this.sound.dispatchEvent( evt );
}
}
}
return this;
};
this.fadeTo = function( to, duration, callback ) {
if ( !supported ) {
return this;
}
if ( duration instanceof Function ) {
callback = duration;
duration = buzz.defaults.duration;
} else {
duration = duration || buzz.defaults.duration;
}
var from = this.volume,
delay = duration / Math.abs( from - to ),
that = this;
this.play();
function doFade() {
setTimeout( function() {
if ( from < to && that.volume < to ) {
that.setVolume( that.volume += 1 );
doFade();
} else if ( from > to && that.volume > to ) {
that.setVolume( that.volume -= 1 );
doFade();
} else if ( callback instanceof Function ) {
callback.apply( that );
}
}, delay );
}
this.whenReady( function() {
doFade();
});
return this;
};
this.fadeIn = function( duration, callback ) {
if ( !supported ) {
return this;
}
return this.setVolume(0).fadeTo( 100, duration, callback );
};
this.fadeOut = function( duration, callback ) {
if ( !supported ) {
return this;
}
return this.fadeTo( 0, duration, callback );
};
this.fadeWith = function( sound, duration ) {
if ( !supported ) {
return this;
}
this.fadeOut( duration, function() {
this.stop();
});
sound.play().fadeIn( duration );
return this;
};
this.whenReady = function( func ) {
if ( !supported ) {
return null;
}
var that = this;
if ( this.sound.readyState === 0 ) {
this.bind( 'canplay.buzzwhenready', function() {
func.call( that );
});
} else {
func.call( that );
}
};
// privates
function timerangeToArray( timeRange ) {
var array = [],
length = timeRange.length - 1;
for( var i = 0; i <= length; i++ ) {
array.push({
start: timeRange.start( length ),
end: timeRange.end( length )
});
}
return array;
}
function getExt( filename ) {
return filename.split('.').pop();
}
function addSource( sound, src ) {
var source = document.createElement( 'source' );
source.src = src;
if ( buzz.types[ getExt( src ) ] ) {
source.type = buzz.types[ getExt( src ) ];
}
sound.appendChild( source );
}
// init
if ( supported ) {
for(var i in buzz.defaults ) {
if(buzz.defaults.hasOwnProperty(i)) {
options[ i ] = options[ i ] || buzz.defaults[ i ];
}
}
this.sound = document.createElement( 'audio' );
if ( src instanceof Array ) {
for( var j in src ) {
if(src.hasOwnProperty(j)) {
addSource( this.sound, src[ j ] );
}
}
} else if ( options.formats.length ) {
for( var k in options.formats ) {
if(options.formats.hasOwnProperty(k)) {
addSource( this.sound, src + '.' + options.formats[ k ] );
}
}
} else {
addSource( this.sound, src );
}
if ( options.loop ) {
this.loop();
}
if ( options.autoplay ) {
this.sound.autoplay = 'autoplay';
}
if ( options.preload === true ) {
this.sound.preload = 'auto';
} else if ( options.preload === false ) {
this.sound.preload = 'none';
} else {
this.sound.preload = options.preload;
}
this.setVolume( options.volume );
buzz.sounds.push( this );
}
},
group: function( sounds ) {
sounds = argsToArray( sounds, arguments );
// publics
this.getSounds = function() {
return sounds;
};
this.add = function( soundArray ) {
soundArray = argsToArray( soundArray, arguments );
for( var a = 0; a < soundArray.length; a++ ) {
sounds.push( soundArray[ a ] );
}
};
this.remove = function( soundArray ) {
soundArray = argsToArray( soundArray, arguments );
for( var a = 0; a < soundArray.length; a++ ) {
for( var i = 0; i < sounds.length; i++ ) {
if ( sounds[ i ] == soundArray[ a ] ) {
delete sounds[ i ];
break;
}
}
}
};
this.load = function() {
fn( 'load' );
return this;
};
this.play = function() {
fn( 'play' );
return this;
};
this.togglePlay = function( ) {
fn( 'togglePlay' );
return this;
};
this.pause = function( time ) {
fn( 'pause', time );
return this;
};
this.stop = function() {
fn( 'stop' );
return this;
};
this.mute = function() {
fn( 'mute' );
return this;
};
this.unmute = function() {
fn( 'unmute' );
return this;
};
this.toggleMute = function() {
fn( 'toggleMute' );
return this;
};
this.setVolume = function( volume ) {
fn( 'setVolume', volume );
return this;
};
this.increaseVolume = function( value ) {
fn( 'increaseVolume', value );
return this;
};
this.decreaseVolume = function( value ) {
fn( 'decreaseVolume', value );
return this;
};
this.loop = function() {
fn( 'loop' );
return this;
};
this.unloop = function() {
fn( 'unloop' );
return this;
};
this.setTime = function( time ) {
fn( 'setTime', time );
return this;
};
this.setduration = function( duration ) {
fn( 'setduration', duration );
return this;
};
this.set = function( key, value ) {
fn( 'set', key, value );
return this;
};
this.bind = function( type, func ) {
fn( 'bind', type, func );
return this;
};
this.unbind = function( type ) {
fn( 'unbind', type );
return this;
};
this.bindOnce = function( type, func ) {
fn( 'bindOnce', type, func );
return this;
};
this.trigger = function( type ) {
fn( 'trigger', type );
return this;
};
this.fade = function( from, to, duration, callback ) {
fn( 'fade', from, to, duration, callback );
return this;
};
this.fadeIn = function( duration, callback ) {
fn( 'fadeIn', duration, callback );
return this;
};
this.fadeOut = function( duration, callback ) {
fn( 'fadeOut', duration, callback );
return this;
};
// privates
function fn() {
var args = argsToArray( null, arguments ),
func = args.shift();
for( var i = 0; i < sounds.length; i++ ) {
sounds[ i ][ func ].apply( sounds[ i ], args );
}
}
function argsToArray( array, args ) {
return ( array instanceof Array ) ? array : Array.prototype.slice.call( args );
}
},
all: function() {
return new buzz.group( buzz.sounds );
},
isSupported: function() {
return !!buzz.el.canPlayType;
},
isOGGSupported: function() {
return !!buzz.el.canPlayType && buzz.el.canPlayType( 'audio/ogg; codecs="vorbis"' );
},
isWAVSupported: function() {
return !!buzz.el.canPlayType && buzz.el.canPlayType( 'audio/wav; codecs="1"' );
},
isMP3Supported: function() {
return !!buzz.el.canPlayType && buzz.el.canPlayType( 'audio/mpeg;' );
},
isAACSupported: function() {
return !!buzz.el.canPlayType && ( buzz.el.canPlayType( 'audio/x-m4a;' ) || buzz.el.canPlayType( 'audio/aac;' ) );
},
toTimer: function( time, withHours ) {
var h, m, s;
h = Math.floor( time / 3600 );
h = isNaN( h ) ? '--' : ( h >= 10 ) ? h : '0' + h;
m = withHours ? Math.floor( time / 60 % 60 ) : Math.floor( time / 60 );
m = isNaN( m ) ? '--' : ( m >= 10 ) ? m : '0' + m;
s = Math.floor( time % 60 );
s = isNaN( s ) ? '--' : ( s >= 10 ) ? s : '0' + s;
return withHours ? h + ':' + m + ':' + s : m + ':' + s;
},
fromTimer: function( time ) {
var splits = time.toString().split( ':' );
if ( splits && splits.length == 3 ) {
time = ( parseInt( splits[ 0 ], 10 ) * 3600 ) + ( parseInt(splits[ 1 ], 10 ) * 60 ) + parseInt( splits[ 2 ], 10 );
}
if ( splits && splits.length == 2 ) {
time = ( parseInt( splits[ 0 ], 10 ) * 60 ) + parseInt( splits[ 1 ], 10 );
}
return time;
},
toPercent: function( value, total, decimal ) {
var r = Math.pow( 10, decimal || 0 );
return Math.round( ( ( value * 100 ) / total ) * r ) / r;
},
fromPercent: function( percent, total, decimal ) {
var r = Math.pow( 10, decimal || 0 );
return Math.round( ( ( total / 100 ) * percent ) * r ) / r;
}
};