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import { Payload, Send, WebSocket } from "@fosscord/gateway";
import { validateSchema, VoiceVideoSchema } from "@fosscord/util";
import { channels, getClients, VoiceOPCodes } from "@fosscord/webrtc";
import { IncomingStreamTrack, SSRCs } from "medooze-media-server";
import SemanticSDP from "semantic-sdp";
export async function onVideo(this: WebSocket, payload: Payload) {
if (!this.client) return;
const { transport, channel_id } = this.client;
if (!transport) return;
const d = validateSchema("VoiceVideoSchema", payload.d) as VoiceVideoSchema;
await Send(this, { op: VoiceOPCodes.MEDIA_SINK_WANTS, d: { any: 100 } });
const id = "stream" + this.user_id;
var stream = this.client.in.stream!;
if (!stream) {
stream = this.client.transport!.createIncomingStream(
// @ts-ignore
SemanticSDP.StreamInfo.expand({
id,
// @ts-ignore
tracks: [],
}),
);
this.client.in.stream = stream;
const interval = setInterval(() => {
for (const track of stream.getTracks()) {
for (const layer of Object.values(track.getStats())) {
console.log(track.getId(), layer.total);
}
}
}, 5000);
stream.on("stopped", () => {
console.log("stream stopped");
clearInterval(interval);
});
this.on("close", () => {
transport!.stop();
});
const out = transport.createOutgoingStream(
// @ts-ignore
SemanticSDP.StreamInfo.expand({
id: "out" + this.user_id,
// @ts-ignore
tracks: [],
}),
);
this.client.out.stream = out;
const clients = channels.get(channel_id)!;
clients.forEach((client) => {
if (client.websocket.user_id === this.user_id) return;
if (!client.in.stream) return;
client.in.stream?.getTracks().forEach((track) => {
attachTrack.call(this, track, client.websocket.user_id);
});
});
}
if (d.audio_ssrc) {
handleSSRC.call(this, "audio", {
media: d.audio_ssrc,
rtx: d.audio_ssrc + 1,
});
}
if (d.video_ssrc && d.rtx_ssrc) {
handleSSRC.call(this, "video", {
media: d.video_ssrc,
rtx: d.rtx_ssrc,
});
}
}
function attachTrack(
this: WebSocket,
track: IncomingStreamTrack,
user_id: string,
) {
if (!this.client) return;
const outTrack = this.client.transport!.createOutgoingStreamTrack(
track.getMedia(),
);
outTrack.attachTo(track);
this.client.out.stream!.addTrack(outTrack);
var ssrcs = this.client.out.tracks.get(user_id)!;
if (!ssrcs)
ssrcs = this.client.out.tracks
.set(user_id, { audio_ssrc: 0, rtx_ssrc: 0, video_ssrc: 0 })
.get(user_id)!;
if (track.getMedia() === "audio") {
ssrcs.audio_ssrc = outTrack.getSSRCs().media!;
} else if (track.getMedia() === "video") {
ssrcs.video_ssrc = outTrack.getSSRCs().media!;
ssrcs.rtx_ssrc = outTrack.getSSRCs().rtx!;
}
Send(this, {
op: VoiceOPCodes.VIDEO,
d: {
user_id: user_id,
...ssrcs,
} as VoiceVideoSchema,
});
}
function handleSSRC(this: WebSocket, type: "audio" | "video", ssrcs: SSRCs) {
if (!this.client) return;
const stream = this.client.in.stream!;
const transport = this.client.transport!;
const id = type + ssrcs.media;
var track = stream.getTrack(id);
if (!track) {
console.log("createIncomingStreamTrack", id);
track = transport.createIncomingStreamTrack(type, { id, ssrcs });
stream.addTrack(track);
const clients = getClients(this.client.channel_id)!;
clients.forEach((client) => {
if (client.websocket.user_id === this.user_id) return;
if (!client.out.stream) return;
attachTrack.call(this, track, client.websocket.user_id);
});
}
}
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