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/*
Spacebar: A FOSS re-implementation and extension of the Discord.com backend.
Copyright (C) 2023 Spacebar and Spacebar Contributors
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import { SelectProtocolSchema, validateSchema } from "@spacebar/util";
import {
VoiceOPCodes,
VoicePayload,
WebRtcWebSocket,
mediaServer,
Send,
} from "@spacebar/webrtc";
export async function onSelectProtocol(
this: WebRtcWebSocket,
payload: VoicePayload,
) {
if (!this.webRtcClient) return;
const data = validateSchema(
"SelectProtocolSchema",
payload.d,
) as SelectProtocolSchema;
// UDP protocol not currently supported. Maybe in the future?
if (data.protocol !== "webrtc")
return this.close(4000, "only webrtc protocol supported currently");
const response = await mediaServer.onOffer(
this.webRtcClient,
data.sdp!,
data.codecs ?? [],
);
await Send(this, {
op: VoiceOPCodes.SESSION_DESCRIPTION,
d: {
video_codec: response.selectedVideoCodec,
sdp: response.sdp,
media_session_id: this.session_id,
audio_codec: "opus",
},
});
}
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