mirror of
https://github.com/jech/galene.git
synced 2024-11-12 19:55:59 +01:00
Factor out stream creation, implement replaceUpStream.
This avoids code duplication in the various addUpMedia functions, and makes it possible to replace a stream without reopening the stream's source. This will be required in order to change the simulcast envelope.
This commit is contained in:
Juliusz Chroboczek
parent
ed88a7a4b5
commit
f1a15f07db
1 changed files with 209 additions and 157 deletions
366
static/galene.js
366
static/galene.js
|
|
@ -392,12 +392,6 @@ getButtonElement('unpresentbutton').onclick = function(e) {
|
|||
resizePeers();
|
||||
};
|
||||
|
||||
function changePresentation() {
|
||||
let c = findUpMedia('camera');
|
||||
if(c)
|
||||
addLocalMedia(c.localId);
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {string} id
|
||||
* @param {boolean} visible
|
||||
|
|
@ -466,7 +460,7 @@ getSelectElement('videoselect').onchange = function(e) {
|
|||
if(!(this instanceof HTMLSelectElement))
|
||||
throw new Error('Unexpected type for this');
|
||||
updateSettings({video: this.value});
|
||||
changePresentation();
|
||||
replaceCameraStream();
|
||||
};
|
||||
|
||||
getSelectElement('audioselect').onchange = function(e) {
|
||||
|
|
@ -474,7 +468,7 @@ getSelectElement('audioselect').onchange = function(e) {
|
|||
if(!(this instanceof HTMLSelectElement))
|
||||
throw new Error('Unexpected type for this');
|
||||
updateSettings({audio: this.value});
|
||||
changePresentation();
|
||||
replaceCameraStream();
|
||||
};
|
||||
|
||||
getInputElement('mirrorbox').onchange = function(e) {
|
||||
|
|
@ -482,7 +476,8 @@ getInputElement('mirrorbox').onchange = function(e) {
|
|||
if(!(this instanceof HTMLInputElement))
|
||||
throw new Error('Unexpected type for this');
|
||||
updateSettings({mirrorView: this.checked});
|
||||
changePresentation();
|
||||
// no need to reopen the camera
|
||||
replaceUpStreams('camera');
|
||||
};
|
||||
|
||||
getInputElement('blackboardbox').onchange = function(e) {
|
||||
|
|
@ -490,7 +485,7 @@ getInputElement('blackboardbox').onchange = function(e) {
|
|||
if(!(this instanceof HTMLInputElement))
|
||||
throw new Error('Unexpected type for this');
|
||||
updateSettings({blackboardMode: this.checked});
|
||||
changePresentation();
|
||||
replaceCameraStream();
|
||||
};
|
||||
|
||||
document.getElementById('mutebutton').onclick = function(e) {
|
||||
|
|
@ -509,7 +504,8 @@ getSelectElement('filterselect').onchange = async function(e) {
|
|||
if(!(this instanceof HTMLSelectElement))
|
||||
throw new Error('Unexpected type for this');
|
||||
updateSettings({filter: this.value});
|
||||
changePresentation();
|
||||
// no need to reopen the camera
|
||||
replaceUpStreams('camera');
|
||||
};
|
||||
|
||||
/** @returns {number} */
|
||||
|
|
@ -944,31 +940,37 @@ Filter.prototype.stop = function() {
|
|||
};
|
||||
|
||||
/**
|
||||
* Removes any filter set on c.
|
||||
*
|
||||
* @param {Stream} c
|
||||
* @param {Filter} f
|
||||
*/
|
||||
function setFilter(c, f) {
|
||||
if(!f) {
|
||||
let filter = c.userdata.filter;
|
||||
if(!filter)
|
||||
return null;
|
||||
if(!(filter instanceof Filter))
|
||||
throw new Error('userdata.filter is not a filter');
|
||||
if(c.userdata.filter) {
|
||||
c.stream = c.userdata.filter.inputStream;
|
||||
c.userdata.filter.stop();
|
||||
c.userdata.filter = null;
|
||||
}
|
||||
return
|
||||
}
|
||||
function removeFilter(c) {
|
||||
let old = c.userdata.filter;
|
||||
if(!old)
|
||||
return;
|
||||
|
||||
if(c.userdata.filter)
|
||||
setFilter(c, null);
|
||||
if(!(old instanceof Filter))
|
||||
throw new Error('userdata.filter is not a filter');
|
||||
|
||||
if(f.inputStream != c.stream)
|
||||
throw new Error('Setting filter for wrong stream');
|
||||
c.stream = f.outputStream;
|
||||
c.userdata.filter = f;
|
||||
c.stream = old.inputStream;
|
||||
old.stop();
|
||||
c.userdata.filter = null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the filter described by c.userdata.filterDefinition on c.
|
||||
*
|
||||
* @param {Stream} c
|
||||
*/
|
||||
function setFilter(c) {
|
||||
removeFilter(c);
|
||||
|
||||
if(!c.userdata.filterDefinition)
|
||||
return;
|
||||
|
||||
let filter = new Filter(c.stream, c.userdata.filterDefinition);
|
||||
c.stream = filter.outputStream;
|
||||
c.userdata.filter = filter;
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -1021,22 +1023,155 @@ function isSafari() {
|
|||
}
|
||||
|
||||
/**
|
||||
* Sets up c to send the given stream. Some extra parameters are stored
|
||||
* in c.userdata.
|
||||
*
|
||||
* @param {Stream} c
|
||||
* @param {MediaStreamTrack} t
|
||||
* @param {MediaStream} stream
|
||||
*/
|
||||
function addUpTrack(c, t, stream) {
|
||||
let encodings = [{}];
|
||||
if(t.kind === 'video') {
|
||||
let bps = getMaxVideoThroughput();
|
||||
if(bps > 0)
|
||||
encodings[0].maxBitrate = bps;
|
||||
function setUpStream(c, stream) {
|
||||
if(c.stream != null)
|
||||
throw new Error("Setting nonempty stream");
|
||||
|
||||
c.stream = stream;
|
||||
|
||||
try {
|
||||
setFilter(c);
|
||||
} catch(e) {
|
||||
displayWarning("Couldn't set filter: " + e);
|
||||
}
|
||||
c.pc.addTransceiver(t, {
|
||||
direction: 'sendonly',
|
||||
streams: [stream],
|
||||
sendEncodings: encodings,
|
||||
});
|
||||
|
||||
c.onclose = replace => {
|
||||
removeFilter(c);
|
||||
if(!replace) {
|
||||
stopStream(c.stream);
|
||||
if(c.userdata.onclose)
|
||||
c.userdata.onclose.call(c);
|
||||
delMedia(c.localId);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {MediaStreamTrack} t
|
||||
*/
|
||||
function addUpTrack(t) {
|
||||
if(c.label === 'camera') {
|
||||
let settings = getSettings();
|
||||
if(t.kind == 'audio') {
|
||||
if(settings.localMute)
|
||||
t.enabled = false;
|
||||
} else if(t.kind == 'video') {
|
||||
if(settings.blackboardMode) {
|
||||
/** @ts-ignore */
|
||||
t.contentHint = 'detail';
|
||||
}
|
||||
}
|
||||
}
|
||||
t.onended = e => {
|
||||
stream.onaddtrack = null;
|
||||
stream.onremovetrack = null;
|
||||
c.close();
|
||||
};
|
||||
|
||||
let encodings = [{}];
|
||||
if(t.kind === 'video') {
|
||||
let bps = getMaxVideoThroughput();
|
||||
if(bps > 0)
|
||||
encodings[0].maxBitrate = bps;
|
||||
}
|
||||
c.pc.addTransceiver(t, {
|
||||
direction: 'sendonly',
|
||||
streams: [stream],
|
||||
sendEncodings: encodings,
|
||||
});
|
||||
}
|
||||
|
||||
// c.stream might be different from stream if there's a filter
|
||||
c.stream.getTracks().forEach(addUpTrack);
|
||||
|
||||
stream.onaddtrack = function(e) {
|
||||
addUpTrack(e.track);
|
||||
};
|
||||
|
||||
stream.onremovetrack = function(e) {
|
||||
let t = e.track;
|
||||
|
||||
/** @type {RTCRtpSender} */
|
||||
let sender;
|
||||
c.pc.getSenders().forEach(s => {
|
||||
if(s.track === t)
|
||||
sender = s;
|
||||
});
|
||||
if(sender) {
|
||||
c.pc.removeTrack(sender);
|
||||
} else {
|
||||
console.warn('Removing unknown track');
|
||||
}
|
||||
|
||||
let found = false;
|
||||
c.pc.getSenders().forEach(s => {
|
||||
if(s.track)
|
||||
found = true;
|
||||
});
|
||||
if(!found) {
|
||||
stream.onaddtrack = null;
|
||||
stream.onremovetrack = null;
|
||||
c.close();
|
||||
}
|
||||
};
|
||||
|
||||
c.onstats = gotUpStats;
|
||||
c.setStatsInterval(2000);
|
||||
}
|
||||
|
||||
/**
|
||||
* Replaces c with a freshly created stream, duplicating any relevant
|
||||
* parameters in c.userdata.
|
||||
*
|
||||
* @param {Stream} c
|
||||
* @returns {Promise<Stream>}
|
||||
*/
|
||||
async function replaceUpStream(c) {
|
||||
removeFilter(c);
|
||||
let cn = newUpStream(c.localId);
|
||||
cn.label = c.label;
|
||||
if(c.userdata.filterDefinition)
|
||||
cn.userdata.filterDefinition = c.userdata.filterDefinition;
|
||||
if(c.userdata.onclose)
|
||||
cn.userdata.onclose = c.userdata.onclose;
|
||||
let media = /** @type{HTMLVideoElement} */
|
||||
(document.getElementById('media-' + c.localId));
|
||||
setUpStream(cn, c.stream);
|
||||
await setMedia(c, true,
|
||||
c.label == 'camera' && getSettings().mirrorView,
|
||||
c.label == 'video' && media);
|
||||
return cn;
|
||||
}
|
||||
|
||||
/**
|
||||
* Replaces all up streams with the given label. If label is null,
|
||||
* replaces all up stream.
|
||||
*
|
||||
* @param {string} label
|
||||
*/
|
||||
async function replaceUpStreams(label) {
|
||||
let promises = [];
|
||||
for(let id in serverConnection.up) {
|
||||
let c = serverConnection.up[id];
|
||||
if(label && c.label !== label)
|
||||
continue
|
||||
promises.push(replaceUpStream(c));
|
||||
}
|
||||
await Promise.all(promises);
|
||||
}
|
||||
|
||||
/**
|
||||
* Closes and reopens the camera then replaces the camera stream.
|
||||
*/
|
||||
function replaceCameraStream() {
|
||||
let c = findUpMedia('camera');
|
||||
if(c)
|
||||
addLocalMedia(c.localId);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -1048,14 +1183,6 @@ async function addLocalMedia(localId) {
|
|||
let audio = settings.audio ? {deviceId: settings.audio} : false;
|
||||
let video = settings.video ? {deviceId: settings.video} : false;
|
||||
|
||||
let filter = null;
|
||||
if(settings.filter) {
|
||||
filter = filters[settings.filter];
|
||||
if(!filter) {
|
||||
displayWarning(`Unknown filter ${settings.filter}`);
|
||||
}
|
||||
}
|
||||
|
||||
if(video) {
|
||||
let resolution = settings.resolution;
|
||||
if(resolution) {
|
||||
|
|
@ -1095,51 +1222,17 @@ async function addLocalMedia(localId) {
|
|||
return;
|
||||
}
|
||||
|
||||
c.stream = stream;
|
||||
c.label = 'camera';
|
||||
|
||||
if(filter) {
|
||||
try {
|
||||
let f = new Filter(stream, filter);
|
||||
setFilter(c, f);
|
||||
c.onclose = replace => {
|
||||
stopStream(stream);
|
||||
setFilter(c, null);
|
||||
if(!replace)
|
||||
delMedia(c.localId);
|
||||
}
|
||||
} catch(e) {
|
||||
displayWarning(e);
|
||||
c.onclose = replace => {
|
||||
stopStream(c.stream);
|
||||
if(!replace)
|
||||
delMedia(c.localId);
|
||||
}
|
||||
}
|
||||
} else {
|
||||
c.onclose = replace => {
|
||||
stopStream(c.stream);
|
||||
if(!replace)
|
||||
delMedia(c.localId);
|
||||
}
|
||||
if(settings.filter) {
|
||||
let filter = filters[settings.filter];
|
||||
if(filter)
|
||||
c.userdata.filterDefinition = filter;
|
||||
else
|
||||
displayWarning(`Unknown filter ${settings.filter}`);
|
||||
}
|
||||
|
||||
let mute = getSettings().localMute;
|
||||
c.stream.getTracks().forEach(t => {
|
||||
if(t.kind == 'audio') {
|
||||
if(mute)
|
||||
t.enabled = false;
|
||||
} else if(t.kind == 'video') {
|
||||
if(settings.blackboardMode) {
|
||||
/** @ts-ignore */
|
||||
t.contentHint = 'detail';
|
||||
}
|
||||
}
|
||||
addUpTrack(c, t, stream);
|
||||
});
|
||||
|
||||
c.onstats = gotUpStats;
|
||||
c.setStatsInterval(2000);
|
||||
setUpStream(c, stream);
|
||||
await setMedia(c, true, settings.mirrorView);
|
||||
setButtonsVisibility();
|
||||
}
|
||||
|
|
@ -1168,19 +1261,8 @@ async function addShareMedia() {
|
|||
}
|
||||
|
||||
let c = newUpStream();
|
||||
c.stream = stream;
|
||||
c.label = 'screenshare';
|
||||
c.onclose = replace => {
|
||||
stopStream(stream);
|
||||
if(!replace)
|
||||
delMedia(c.localId);
|
||||
}
|
||||
stream.getTracks().forEach(t => {
|
||||
addUpTrack(c, t, stream)
|
||||
t.onended = e => c.close();
|
||||
});
|
||||
c.onstats = gotUpStats;
|
||||
c.setStatsInterval(2000);
|
||||
setUpStream(c, stream);
|
||||
await setMedia(c, true);
|
||||
setButtonsVisibility();
|
||||
}
|
||||
|
|
@ -1208,60 +1290,24 @@ async function addFileMedia(file) {
|
|||
}
|
||||
|
||||
let c = newUpStream();
|
||||
c.stream = stream;
|
||||
c.label = 'video';
|
||||
c.onclose = function(replace) {
|
||||
stopStream(c.stream);
|
||||
c.userdata.onclose = function() {
|
||||
let media = /** @type{HTMLVideoElement} */
|
||||
(document.getElementById('media-' + this.localId));
|
||||
if(media && media.src) {
|
||||
URL.revokeObjectURL(media.src);
|
||||
media.src = null;
|
||||
}
|
||||
if(!replace)
|
||||
delMedia(c.localId);
|
||||
};
|
||||
await setUpStream(c, stream);
|
||||
|
||||
stream.onaddtrack = function(e) {
|
||||
let t = e.track;
|
||||
if(t.kind === 'audio') {
|
||||
let presenting = !!findUpMedia('camera');
|
||||
let muted = getSettings().localMute;
|
||||
if(presenting && !muted) {
|
||||
setLocalMute(true, true);
|
||||
displayWarning('You have been muted');
|
||||
}
|
||||
}
|
||||
addUpTrack(c, t, stream);
|
||||
c.onstats = gotUpStats;
|
||||
c.setStatsInterval(2000);
|
||||
};
|
||||
stream.onremovetrack = function(e) {
|
||||
let t = e.track;
|
||||
let presenting = !!findUpMedia('camera');
|
||||
let muted = getSettings().localMute;
|
||||
if(presenting && !muted) {
|
||||
setLocalMute(true, true);
|
||||
displayWarning('You have been muted');
|
||||
}
|
||||
|
||||
/** @type {RTCRtpSender} */
|
||||
let sender;
|
||||
c.pc.getSenders().forEach(s => {
|
||||
if(s.track === t)
|
||||
sender = s;
|
||||
});
|
||||
if(sender) {
|
||||
c.pc.removeTrack(sender);
|
||||
} else {
|
||||
console.warn('Removing unknown track');
|
||||
}
|
||||
|
||||
let found = false;
|
||||
c.pc.getSenders().forEach(s => {
|
||||
if(s.track)
|
||||
found = true;
|
||||
});
|
||||
if(!found) {
|
||||
stream.onaddtrack = null;
|
||||
stream.onremovetrack = null;
|
||||
c.close();
|
||||
}
|
||||
};
|
||||
await setMedia(c, true, false, video);
|
||||
c.userdata.play = true;
|
||||
setButtonsVisibility();
|
||||
|
|
@ -1352,11 +1398,7 @@ async function setMedia(c, isUp, mirror, video) {
|
|||
|
||||
let media = /** @type {HTMLVideoElement} */
|
||||
(document.getElementById('media-' + c.localId));
|
||||
if(media) {
|
||||
if(video) {
|
||||
throw new Error("Duplicate video");
|
||||
}
|
||||
} else {
|
||||
if(!media) {
|
||||
if(video) {
|
||||
media = video;
|
||||
} else {
|
||||
|
|
@ -1464,7 +1506,7 @@ function addCustomControls(media, container, c, toponly) {
|
|||
topcontrols.id = 'topcontrols-' + c.localId;
|
||||
container.appendChild(topcontrols);
|
||||
}
|
||||
registerControlHandlers(media, container, c);
|
||||
registerControlHandlers(c.localId, media, container);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -1495,11 +1537,11 @@ function setVolumeButton(muted, button, slider) {
|
|||
}
|
||||
|
||||
/**
|
||||
* @param {string} localId
|
||||
* @param {HTMLVideoElement} media
|
||||
* @param {HTMLElement} container
|
||||
* @param {Stream} c
|
||||
*/
|
||||
function registerControlHandlers(media, container, c) {
|
||||
function registerControlHandlers(localId, media, container) {
|
||||
let play = getVideoButton(container, 'video-play');
|
||||
if(play) {
|
||||
play.onclick = function(event) {
|
||||
|
|
@ -1513,6 +1555,9 @@ function registerControlHandlers(media, container, c) {
|
|||
stop.onclick = function(event) {
|
||||
event.preventDefault();
|
||||
try {
|
||||
let c = serverConnection.findByLocalId(localId);
|
||||
if(!c)
|
||||
throw new Error('Closing unknown stream');
|
||||
c.close();
|
||||
} catch(e) {
|
||||
console.error(e);
|
||||
|
|
@ -2243,6 +2288,13 @@ commands.renegotiate = {
|
|||
}
|
||||
};
|
||||
|
||||
commands.replace = {
|
||||
f: (c, r) => {
|
||||
replaceUpStreams(null);
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* parseCommand splits a string into two space-separated parts. The first
|
||||
* part may be quoted and may include backslash escapes.
|
||||
|
|
|
|||
Loading…
Reference in a new issue