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/* eslint-env browser */
// Create peer conn
const pc = new RTCPeerConnection({
iceServers: [{
urls: 'stun:stun.l.google.com:19302'
}]
})
pc.oniceconnectionstatechange = (e) => {
console.log('connection state change', pc.iceConnectionState)
}
pc.onicecandidate = (event) => {
if (event.candidate === null) {
document.getElementById('localSessionDescription').value = btoa(
JSON.stringify(pc.localDescription)
)
}
}
pc.onnegotiationneeded = (e) =>
pc
.createOffer()
.then((d) => pc.setLocalDescription(d))
.catch(console.error)
pc.ontrack = (event) => {
console.log('Got track event', event)
const video = document.createElement('video')
video.srcObject = event.streams[0]
video.autoplay = true
video.width = '500'
const label = document.createElement('div')
label.textContent = event.streams[0].id
document.getElementById('serverVideos').appendChild(label)
document.getElementById('serverVideos').appendChild(video)
}
navigator.mediaDevices
.getUserMedia({
video: {
width: {
ideal: 4096
},
height: {
ideal: 2160
},
frameRate: {
ideal: 60,
min: 10
}
},
audio: false
})
.then((stream) => {
document.getElementById('browserVideo').srcObject = stream
pc.addTransceiver(stream.getVideoTracks()[0], {
direction: 'sendonly',
streams: [stream],
sendEncodings: [
// for firefox order matters... first high resolution, then scaled resolutions...
{
rid: 'f'
},
{
rid: 'h',
scaleResolutionDownBy: 2.0
},
{
rid: 'q',
scaleResolutionDownBy: 4.0
}
]
})
pc.addTransceiver('video')
pc.addTransceiver('video')
pc.addTransceiver('video')
})
window.startSession = () => {
const sd = document.getElementById('remoteSessionDescription').value
if (sd === '') {
return alert('Session Description must not be empty')
}
try {
console.log('answer', JSON.parse(atob(sd)))
pc.setRemoteDescription(JSON.parse(atob(sd)))
} catch (e) {
alert(e)
}
}
window.copySDP = () => {
const browserSDP = document.getElementById('localSessionDescription')
browserSDP.focus()
browserSDP.select()
try {
const successful = document.execCommand('copy')
const msg = successful ? 'successful' : 'unsuccessful'
console.log('Copying SDP was ' + msg)
} catch (err) {
console.log('Unable to copy SDP ' + err)
}
}
|
