rtc

minimal webrtc client
git clone git://ce9e.org/rtc

commit
5395944228d0d0012bc258a37b4547aa93f854d7
parent
59abee892ace482053660c49fe69758faf6d19e8
Author
Tobias Bengfort <tobias.bengfort@posteo.de>
Date
2020-04-01 07:05
only create new Stream when tracks are added/removed

Diffstat

M www/rtc/rtc.js 83 ++++++++++++++++++++++++++++---------------------------------

1 files changed, 38 insertions, 45 deletions


diff --git a/www/rtc/rtc.js b/www/rtc/rtc.js

@@ -141,67 +141,60 @@
  141   141 	var controls = document.querySelector('.rtc-controls');
  142   142 
  143   143 	var updateStreams = async function(event) {
  144    -1 		var newStream = new MediaStream();
  145    -1 		var kind = event.target.name === 'screen' ? 'video' : event.target.name;
  146    -1 		var stream;
   -1   144 		var tracks = localVideo.srcObject.getTracks();
   -1   145 		var kind = event.target.name === 'audio' ? 'audio' : 'video';
  147   146 
  148    -1 		if (controls.video.checked && controls.screen.checked) {
   -1   147 		if (!event.target.checked) {
   -1   148 			tracks.forEach(track => {
   -1   149 				if (track.kind === kind) {
   -1   150 					track.enabled = false;
   -1   151 				}
   -1   152 			});
   -1   153 		} else if (
   -1   154 			tracks.filter(t => t.kind === kind).length &&
   -1   155 			!(controls.video.checked && controls.screen.checked)
   -1   156 		) {
   -1   157 			tracks.forEach(track => {
   -1   158 				if (track.kind === kind) {
   -1   159 					track.enabled = true;
   -1   160 				}
   -1   161 			});
   -1   162 		} else {
   -1   163 			var newStream = new MediaStream();
   -1   164 			var stream;
  149   165 			try {
  150   166 				if (event.target.name === 'screen') {
  151   167 					stream = await navigator.mediaDevices.getDisplayMedia();
  152    -1 					controls.video.checked = false;
  153   168 				} else {
  154    -1 					stream = await navigator.mediaDevices.getUserMedia({video: true});
  155    -1 					controls.screen.checked = false;
   -1   169 					stream = await navigator.mediaDevices.getUserMedia({[kind]: true});
  156   170 				}
  157   171 			} catch (err) {
  158   172 				event.target.checked = false;
  159   173 				return;
  160   174 			}
  161   175 
  162    -1 			localVideo.srcObject.getVideoTracks().forEach(track => {
  163    -1 				track.stop();
  164    -1 			});
  165    -1 			localVideo.srcObject.getAudioTracks().forEach(track => {
  166    -1 				newStream.addTrack(track);
  167    -1 			});
  168    -1 			stream.getVideoTracks().forEach(track => {
  169    -1 				newStream.addTrack(track);
  170    -1 			});
  171    -1 		} else {
  172    -1 			var exists = false;
  173    -1 			localVideo.srcObject.getTracks().forEach(track => {
  174    -1 				newStream.addTrack(track);
   -1   176 			if (event.target.name === 'video') {
   -1   177 				controls.screen.checked = false;
   -1   178 				localVideo.classList.add('mirrored');
   -1   179 			} else if (event.target.name === 'screen') {
   -1   180 				controls.video.checked = false;
   -1   181 				localVideo.classList.remove('mirrored');
   -1   182 			}
   -1   183 
   -1   184 			tracks.forEach(track => {
  175   185 				if (track.kind === kind) {
  176    -1 					track.enabled = event.target.checked;
  177    -1 					exists = true;
   -1   186 					track.stop();
   -1   187 				} else {
   -1   188 					newStream.addTrack(track);
  178   189 				}
  179   190 			});
  180    -1 			if (!exists && event.target.checked) {
  181    -1 				try {
  182    -1 					if (event.target.name === 'screen') {
  183    -1 						stream = await navigator.mediaDevices.getDisplayMedia();
  184    -1 					} else {
  185    -1 						stream = await navigator.mediaDevices.getUserMedia({[kind]: true});
  186    -1 					}
  187    -1 				} catch (err) {
  188    -1 					event.target.checked = false;
  189    -1 					return;
  190    -1 				}
  191    -1 				stream.getTracks().forEach(track => {
  192    -1 					newStream.addTrack(track);
  193    -1 				});
  194    -1 			}
  195    -1 		}
   -1   191 			stream.getTracks().forEach(track => {
   -1   192 				newStream.addTrack(track);
   -1   193 			});
  196   194 
  197    -1 		if (event.target.name === 'video') {
  198    -1 			localVideo.classList.add('mirrored');
  199    -1 		} else if (event.target.name === 'screen') {
  200    -1 			localVideo.classList.remove('mirrored');
   -1   195 			localVideo.srcObject = newStream;
   -1   196 			updateConnections();
  201   197 		}
  202    -1 
  203    -1 		localVideo.srcObject = newStream;
  204    -1 		updateConnections();
  205   198 	};
  206   199 
  207   200 	document.querySelector('.rtc-controls').addEventListener('change', updateStreams);