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import { WebSocket } from "@fosscord/gateway";
import { Payload } from "./index";
import { VoiceOPCodes } from "@fosscord/util";
import { Server } from "../Server";
import * as mediasoup from "mediasoup";
import { RtpCodecCapability } from "mediasoup/node/lib/RtpParameters";
import * as sdpTransform from 'sdp-transform';
/*
Sent by client:
{
"op": 1,
"d": {
"protocol": "webrtc",
"data": "
a=extmap-allow-mixed
a=ice-ufrag:vNxb
a=ice-pwd:tZvpbVPYEKcnW0gGRPq0OOnh
a=ice-options:trickle
a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level
a=extmap:2 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time
a=extmap:3 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01
a=extmap:4 urn:ietf:params:rtp-hdrext:sdes:mid
a=rtpmap:111 opus/48000/2
a=extmap:14 urn:ietf:params:rtp-hdrext:toffset
a=extmap:13 urn:3gpp:video-orientation
a=extmap:5 http://www.webrtc.org/experiments/rtp-hdrext/playout-delay
a=extmap:6 http://www.webrtc.org/experiments/rtp-hdrext/video-content-type
a=extmap:7 http://www.webrtc.org/experiments/rtp-hdrext/video-timing
a=extmap:8 http://www.webrtc.org/experiments/rtp-hdrext/color-space
a=extmap:10 urn:ietf:params:rtp-hdrext:sdes:rtp-stream-id
a=extmap:11 urn:ietf:params:rtp-hdrext:sdes:repaired-rtp-stream-id
a=rtpmap:96 VP8/90000
a=rtpmap:97 rtx/90000
",
"codecs": [
{
"name": "opus",
"type": "audio",
"priority": 1000,
"payload_type": 111,
"rtx_payload_type": null
},
{
"name": "H264",
"type": "video",
"priority": 1000,
"payload_type": 102,
"rtx_payload_type": 121
},
{
"name": "VP8",
"type": "video",
"priority": 2000,
"payload_type": 96,
"rtx_payload_type": 97
},
{
"name": "VP9",
"type": "video",
"priority": 3000,
"payload_type": 98,
"rtx_payload_type": 99
}
],
"rtc_connection_id": "3faa0b80-b3e2-4bae-b291-273801fbb7ab"
}
}
*/
export async function onSelectProtocol(this: Server, socket: WebSocket, data: Payload) {
const rtpCapabilities = this.mediasoupRouters[0].rtpCapabilities;
const codecs = rtpCapabilities.codecs as RtpCodecCapability[];
const transport = this.mediasoupTransports[0]; //whatever
const res = sdpTransform.parse(data.d.sdp);
const videoCodec = this.mediasoupRouters[0].rtpCapabilities.codecs!.find((x: any) => x.kind === "video");
const audioCodec = this.mediasoupRouters[0].rtpCapabilities.codecs!.find((x: any) => x.kind === "audio");
const producer = this.mediasoupProducers[0] || await transport.produce({
kind: "audio",
rtpParameters: {
mid: "audio",
codecs: [{
clockRate: audioCodec!.clockRate,
payloadType: audioCodec!.preferredPayloadType as number,
mimeType: audioCodec!.mimeType,
channels: audioCodec?.channels,
}],
headerExtensions: res.ext?.map(x => ({
id: x.value,
uri: x.uri,
})),
},
paused: false,
});
console.log("can consume: " + this.mediasoupRouters[0].canConsume({ producerId: producer.id, rtpCapabilities: rtpCapabilities }));
// const consumer = this.mediasoupConsumers[0] || await transport.consume({
// producerId: producer.id,
// paused: false,
// rtpCapabilities,
// });
/*
{
"video_codec":"H264",
"sdp":
"
m=audio 50010 ICE/SDP
a=fingerprint:sha-256 4A:79:94:16:44:3F:BD:05:41:5A:C7:20:F3:12:54:70:00:73:5D:33:00:2D:2C:80:9B:39:E1:9F:2D:A7:49:87
c=IN IP4 109.200.214.158
a=rtcp:50010
a=ice-ufrag:+npq
a=ice-pwd:+jf7jAesMeHHby43FRqWTy
a=fingerprint:sha-256 4A:79:94:16:44:3F:BD:05:41:5A:C7:20:F3:12:54:70:00:73:5D:33:00:2D:2C:80:9B:39:E1:9F:2D:A7:49:87
a=candidate:1 1 UDP 4261412862 109.200.214.158 50010 typ host",
"media_session_id":"59265c94fa13e313492c372c4c8da801
",
"audio_codec":"opus"
}
*/
socket.send(JSON.stringify({
op: VoiceOPCodes.SESSION_DESCRIPTION,
d: {
video_codec: videoCodec?.mimeType?.substring(6) || undefined,
// mode: "xsalsa20_poly1305_lite",
media_session_id: transport.id,
audio_codec: audioCodec?.mimeType.substring(6),
sdp: `m=audio ${transport.iceCandidates[0].port} ICE/SDP\n`
+ `a=fingerprint:sha-256 ${transport.dtlsParameters.fingerprints.find(x => x.algorithm === "sha-256")?.value}\n`
+ `c=IN IP4 ${transport.iceCandidates[0].ip}\n`
+ `t=0 0\n`
+ `a=ice-lite\n`
+ `a=rtcp-mux\n`
+ `a=rtcp:${transport.iceCandidates[0].port}\n`
+ `a=ice-ufrag:${transport.iceParameters.usernameFragment}\n`
+ `a=ice-pwd:${transport.iceParameters.password}\n`
+ `a=fingerprint:sha-256 ${transport.dtlsParameters.fingerprints.find(x => x.algorithm === "sha-256")?.value}\n`
+ `a=candidate:1 1 ${transport.iceCandidates[0].protocol.toUpperCase()} ${transport.iceCandidates[0].priority} ${transport.iceCandidates[0].ip} ${transport.iceCandidates[0].port} typ ${transport.iceCandidates[0].type}`
}
}));
}
|
