@ -30,6 +30,8 @@ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
@@ -30,6 +30,8 @@ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
OF THIS SOFTWARE , EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE .
* /
'use strict' ;
var getUserMedia = null ;
var attachMediaStream = null ;
var reattachMediaStream = null ;
@ -39,24 +41,79 @@ var webrtcMinimumVersion = null;
@@ -39,24 +41,79 @@ var webrtcMinimumVersion = null;
var webrtcUtils = {
log : function ( ) {
// suppress console.log output when being included as a module.
if ( ! ( typeof module !== 'undefined' ||
typeof require === 'function' ) && ( typeof define === 'function' ) ) {
console . log . apply ( console , arguments ) ;
if ( typeof module !== 'undefined' ||
typeof require === 'function' && typeof define === 'function' ) {
return ;
}
console . log . apply ( console , arguments ) ;
} ,
extractVersion : function ( uastring , expr , pos ) {
var match = uastring . match ( expr ) ;
return match && match . length >= pos && parseInt ( match [ pos ] , 10 ) ;
}
} ;
/ *
function trace ( text ) {
// This function is used for logging.
if ( text [ text . length - 1 ] === '\n' ) {
text = text . substring ( 0 , text . length - 1 ) ;
}
if ( window . performance ) {
var now = ( window . performance . now ( ) / 1000 ) . toFixed ( 3 ) ;
webrtcUtils . log ( now + ': ' + text ) ;
} else {
webrtcUtils . log ( text ) ;
}
}
* /
if ( typeof window === 'object' ) {
if ( window . HTMLMediaElement &&
! ( 'srcObject' in window . HTMLMediaElement . prototype ) ) {
// Shim the srcObject property, once, when HTMLMediaElement is found.
Object . defineProperty ( window . HTMLMediaElement . prototype , 'srcObject' , {
get : function ( ) {
// If prefixed srcObject property exists, return it.
// Otherwise use the shimmed property, _srcObject
return 'mozSrcObject' in this ? this . mozSrcObject : this . _srcObject ;
} ,
set : function ( stream ) {
if ( 'mozSrcObject' in this ) {
this . mozSrcObject = stream ;
} else {
// Use _srcObject as a private property for this shim
this . _srcObject = stream ;
// TODO: revokeObjectUrl(this.src) when !stream to release resources?
this . src = URL . createObjectURL ( stream ) ;
}
}
} ) ;
}
// Proxy existing globals
getUserMedia = window . navigator && window . navigator . getUserMedia ;
}
// Attach a media stream to an element.
attachMediaStream = function ( element , stream ) {
element . srcObject = stream ;
} ;
reattachMediaStream = function ( to , from ) {
to . srcObject = from . srcObject ;
} ;
if ( typeof window === 'undefined' || ! window . navigator ) {
webrtcUtils . log ( 'This does not appear to be a browser' ) ;
webrtcDetectedBrowser = 'not a browser' ;
} else if ( navigator . mozGetUserMedia ) {
} else if ( navigator . mozGetUserMedia && window . mozRTCPeerConnection ) {
webrtcUtils . log ( 'This appears to be Firefox' ) ;
webrtcDetectedBrowser = 'firefox' ;
// the detected firefox version.
webrtcDetectedVersion =
parseInt ( navigator . userAgent . match ( /Firefox\/([0-9]+)\./ ) [ 1 ] , 10 ) ;
webrtcDetectedVersion = webrtcUtils . extractVersion ( navigator . userAgent ,
/Firefox\/([0-9]+)\./ , 1 ) ;
// the minimum firefox version still supported by adapter.
webrtcMinimumVersion = 31 ;
@ -88,14 +145,18 @@ if (typeof window === 'undefined' || !window.navigator) {
@@ -88,14 +145,18 @@ if (typeof window === 'undefined' || !window.navigator) {
pcConfig . iceServers = newIceServers ;
}
}
return new mozRTCPeerConnection ( pcConfig , pcConstraints ) ;
return new mozRTCPeerConnection ( pcConfig , pcConstraints ) ; // jscs:ignore requireCapitalizedConstructors
} ;
// The RTCSessionDescription object.
window . RTCSessionDescription = mozRTCSessionDescription ;
if ( ! window . RTCSessionDescription ) {
window . RTCSessionDescription = mozRTCSessionDescription ;
}
// The RTCIceCandidate object.
window . RTCIceCandidate = mozRTCIceCandidate ;
if ( ! window . RTCIceCandidate ) {
window . RTCIceCandidate = mozRTCIceCandidate ;
}
// getUserMedia constraints shim.
getUserMedia = function ( constraints , onSuccess , onError ) {
@ -168,8 +229,8 @@ if (typeof window === 'undefined' || !window.navigator) {
@@ -168,8 +229,8 @@ if (typeof window === 'undefined' || !window.navigator) {
navigator . mediaDevices . enumerateDevices || function ( ) {
return new Promise ( function ( resolve ) {
var infos = [
{ kind : 'audioinput' , deviceId : 'default' , label : '' , groupId : '' } ,
{ kind : 'videoinput' , deviceId : 'default' , label : '' , groupId : '' }
{ kind : 'audioinput' , deviceId : 'default' , label : '' , groupId : '' } ,
{ kind : 'videoinput' , deviceId : 'default' , label : '' , groupId : '' }
] ;
resolve ( infos ) ;
} ) ;
@ -180,7 +241,7 @@ if (typeof window === 'undefined' || !window.navigator) {
@@ -180,7 +241,7 @@ if (typeof window === 'undefined' || !window.navigator) {
var orgEnumerateDevices =
navigator . mediaDevices . enumerateDevices . bind ( navigator . mediaDevices ) ;
navigator . mediaDevices . enumerateDevices = function ( ) {
return orgEnumerateDevices ( ) . catch ( function ( e ) {
return orgEnumerateDevices ( ) . then ( undefined , function ( e ) {
if ( e . name === 'NotFoundError' ) {
return [ ] ;
}
@ -188,30 +249,27 @@ if (typeof window === 'undefined' || !window.navigator) {
@@ -188,30 +249,27 @@ if (typeof window === 'undefined' || !window.navigator) {
} ) ;
} ;
}
// Attach a media stream to an element.
attachMediaStream = function ( element , stream ) {
element . mozSrcObject = stream ;
} ;
reattachMediaStream = function ( to , from ) {
to . mozSrcObject = from . mozSrcObject ;
} ;
} else if ( navigator . webkitGetUserMedia ) {
} else if ( navigator . webkitGetUserMedia && window . webkitRTCPeerConnection ) {
webrtcUtils . log ( 'This appears to be Chrome' ) ;
webrtcDetectedBrowser = 'chrome' ;
// the detected chrome version.
webrtcDetectedVersion =
parseInt ( navigator . userAgent . match ( /Chrom(e|ium)\/([0-9]+)\./ ) [ 2 ] , 10 ) ;
webrtcDetectedVersion = webrtcUtils . extractVersion ( navigator . userAgent ,
/Chrom(e|ium)\/([0-9]+)\./ , 2 ) ;
// the minimum chrome version still supported by adapter.
webrtcMinimumVersion = 38 ;
// The RTCPeerConnection object.
window . RTCPeerConnection = function ( pcConfig , pcConstraints ) {
var pc = new webkitRTCPeerConnection ( pcConfig , pcConstraints ) ;
// Translate iceTransportPolicy to iceTransports,
// see https://code.google.com/p/webrtc/issues/detail?id=4869
if ( pcConfig && pcConfig . iceTransportPolicy ) {
pcConfig . iceTransports = pcConfig . iceTransportPolicy ;
}
var pc = new webkitRTCPeerConnection ( pcConfig , pcConstraints ) ; // jscs:ignore requireCapitalizedConstructors
var origGetStats = pc . getStats . bind ( pc ) ;
pc . getStats = function ( selector , successCallback , errorCallback ) { // jshint ignore: line
var self = this ;
@ -251,7 +309,14 @@ if (typeof window === 'undefined' || !window.navigator) {
@@ -251,7 +309,14 @@ if (typeof window === 'undefined' || !window.navigator) {
// promise-support
return new Promise ( function ( resolve , reject ) {
origGetStats . apply ( self , [ resolve , reject ] ) ;
if ( args . length === 1 && selector === null ) {
origGetStats . apply ( self , [
function ( response ) {
resolve . apply ( null , [ fixChromeStats ( response ) ] ) ;
} , reject ] ) ;
} else {
origGetStats . apply ( self , [ resolve , reject ] ) ;
}
} ) ;
} ;
@ -417,7 +482,7 @@ if (typeof window === 'undefined' || !window.navigator) {
@@ -417,7 +482,7 @@ if (typeof window === 'undefined' || !window.navigator) {
// Attach a media stream to an element.
attachMediaStream = function ( element , stream ) {
if ( typeof element . srcObject !== 'undefined' ) {
if ( webrtcDetectedVersion >= 43 ) {
element . srcObject = stream ;
} else if ( typeof element . src !== 'undefined' ) {
element . src = URL . createObjectURL ( stream ) ;
@ -425,9 +490,12 @@ if (typeof window === 'undefined' || !window.navigator) {
@@ -425,9 +490,12 @@ if (typeof window === 'undefined' || !window.navigator) {
webrtcUtils . log ( 'Error attaching stream to element.' ) ;
}
} ;
reattachMediaStream = function ( to , from ) {
to . src = from . src ;
if ( webrtcDetectedVersion >= 43 ) {
to . srcObject = from . srcObject ;
} else {
to . src = from . src ;
}
} ;
} else if ( navigator . mediaDevices && navigator . userAgent . match (
@ -435,20 +503,11 @@ if (typeof window === 'undefined' || !window.navigator) {
@@ -435,20 +503,11 @@ if (typeof window === 'undefined' || !window.navigator) {
webrtcUtils . log ( 'This appears to be Edge' ) ;
webrtcDetectedBrowser = 'edge' ;
webrtcDetectedVersion =
parseInt ( navigator . userAgent . match ( /Edge\/(\d+).(\d+)$/ ) [ 2 ] , 10 ) ;
webrtcDetectedVersion = webrtcUtils . extractVersion ( navigator . userAgent ,
/Edge\/(\d+).(\d+)$/ , 2 ) ;
// the minimum version still supported by adapter.
webrtcMinimumVersion = 12 ;
getUserMedia = navigator . getUserMedia ;
attachMediaStream = function ( element , stream ) {
element . srcObject = stream ;
} ;
reattachMediaStream = function ( to , from ) {
to . srcObject = from . srcObject ;
} ;
} else {
webrtcUtils . log ( 'Browser does not appear to be WebRTC-capable' ) ;
}
@ -461,26 +520,35 @@ function requestUserMedia(constraints) {
@@ -461,26 +520,35 @@ function requestUserMedia(constraints) {
}
var webrtcTesting = { } ;
Object . defineProperty ( webrtcTesting , 'version' , {
set : function ( version ) {
webrtcDetectedVersion = version ;
}
} ) ;
try {
Object . defineProperty ( webrtcTesting , 'version' , {
set : function ( version ) {
webrtcDetectedVersion = version ;
}
} ) ;
} catch ( e ) { }
if ( typeof module !== 'undefined' ) {
var RTCPeerConnection ;
var RTCIceCandidate ;
var RTCSessionDescription ;
if ( typeof window !== 'undefined' ) {
RTCPeerConnection = window . RTCPeerConnection ;
RTCIceCandidate = window . RTCIceCandidate ;
RTCSessionDescription = window . RTCSessionDescription ;
}
module . exports = {
RTCPeerConnection : RTCPeerConnection ,
RTCIceCandidate : RTCIceCandidate ,
RTCSessionDescription : RTCSessionDescription ,
getUserMedia : getUserMedia ,
attachMediaStream : attachMediaStream ,
reattachMediaStream : reattachMediaStream ,
webrtcDetectedBrowser : webrtcDetectedBrowser ,
webrtcDetectedVersion : webrtcDetectedVersion ,
webrtcMinimumVersion : webrtcMinimumVersion ,
webrtcTesting : webrtcTesting
webrtcTesting : webrtcTesting ,
webrtcUtils : webrtcUtils
//requestUserMedia: not exposed on purpose.
//trace: not exposed on purpose.
} ;
@ -489,13 +557,16 @@ if (typeof module !== 'undefined') {
@@ -489,13 +557,16 @@ if (typeof module !== 'undefined') {
define ( [ ] , function ( ) {
return {
RTCPeerConnection : window . RTCPeerConnection ,
RTCIceCandidate : window . RTCIceCandidate ,
RTCSessionDescription : window . RTCSessionDescription ,
getUserMedia : getUserMedia ,
attachMediaStream : attachMediaStream ,
reattachMediaStream : reattachMediaStream ,
webrtcDetectedBrowser : webrtcDetectedBrowser ,
webrtcDetectedVersion : webrtcDetectedVersion ,
webrtcMinimumVersion : webrtcMinimumVersion ,
webrtcTesting : webrtcTesting
webrtcTesting : webrtcTesting ,
webrtcUtils : webrtcUtils
//requestUserMedia: not exposed on purpose.
//trace: not exposed on purpose.
} ;
Simon Eisenmann
10 years ago