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How to use getTransceiver method in wpt

Best JavaScript code snippet using wpt

index.js

Source:index.js

...240            if (client.room.conductor && client.room.conductor !== client) {241                client.room.singers.push(client.room.conductor);242            }243            client.room.conductor = client;244            let conductorVideo = client.peer?.getTransceiver(RTCTransceivers.MY_VIDEO).receiver.track245            let conductorAudio = client.peer?.getTransceiver(RTCTransceivers.MY_AUDIO).receiver.track246            for(let c of client.room.singers) {247                c.sendJSON({cmd: "updateRoomConductor", conductorUserId: client.room.conductor?.user.userId})248                client.sendJSON({cmd: "updateSingerState", user: c.user, state: c.singerState});249                if (conductorVideo && c.peer) {250                    await c.peer.getTransceiver(RTCTransceivers.CONDUCTOR_VIDEO).sender.replaceTrack(conductorVideo);251                    await c.peer.getTransceiver(RTCTransceivers.CONDUCTOR_AUDIO).sender.replaceTrack(conductorAudio);252                }253            }254            clientLog(client, `Conducting room ${client.room.roomId}`)255        } else if (client.conducting) {256            client.conducting = false;257            client.room.conductor = null;258            client.room.singers.push(client);259            clientLog(client, `No longer conducting room ${client.room.roomId}`)260        }261        return true;262    },263    listProjects: async (client) => {264        return await listProjects(client.room.roomId);265    },266    createProject: async (client, {name}) => {267        requireConductor(client);268        let project = await addProject(uuid(), client.room.roomId, name);269        let lanes = await listLanes(project.projectId);270        let items = await listItemsByProject(project.projectId);271        let users = await listUsers(project.projectId);272        client.room.currentProjectId = project.projectId;273        await saveRoom(client.room);274        conduct(client.room, {cmd: "loadProject", project, lanes, items, users});275        return {project, lanes, items, users};276    },277    loadProject: async (client, {projectId}) => {278        let project = await getProject(projectId);279        let lanes = await listLanes(projectId);280        let items = await listItemsByProject(projectId);281        let users = await listUsers(projectId);282        if (client.conducting) {283            roomLog(client.room, `Loading project ${projectId}`);284            client.room.currentProjectId = projectId;285            await saveRoom(client.room);286            conduct(client.room, {cmd: "loadProject", project, lanes, items, users});287        }288        return {project, lanes, items, users};289    },290    play: (client, {startTime}) => {291        requireConductor(client);292        roomLog(client.room, `Playing from ${startTime} seconds`);293        conduct(client.room, {cmd: "play", startTime});294    },295    stop: (client) => {296        requireConductor(client);297        roomLog(client.room, `Stopping`);298        conduct(client.room, {cmd: "stop"});299    },300    startRecording: (client) => {301        requireConductor(client);302        roomLog(client.room, `Recording`);303        conduct(client.room, {cmd: "startRecording"});304    },305    stopRecording: (client) => {306        requireConductor(client);307        roomLog(client.room, `Stop recording`);308        conduct(client.room, {cmd: "stopRecording"});309    },310    seek: (client, {time}) => {311        requireConductor(client);312        roomLog(client.room, `Seek to ${time}`);313        conduct(client.room, {cmd: "seek", time});314    },315    singerStateUpdate: (client, {state}) => {316        client.singerState = state;317        for (let c of client.room.clients) {318            c.sendJSON({cmd: "updateSingerState", user: client.user, state});319        }320    },321    uploadItem: async (client, { name }, data) => {322        clientLog(client, "New upload:", name, data.length, "bytes");323        let itemId = uuid();324        fs.mkdirSync(".items", {recursive: true});325        fs.writeFileSync(`.items/${itemId}.${name}`, data);326        let laneIdx = (await listLanes(client.room.currentProjectId)).length;327        let lane = await addLane(uuid(), client.room.currentProjectId, client.user.userId, name, laneIdx, true);328        let itemIdx = (await listItemsByProject(client.room.currentProjectId)).filter(i => i.laneId === lane.laneId).length;329        let item = await addItem(itemId, lane.laneId, 0, 0, 0, itemIdx, `/.items/${itemId}.${name}`, null, null);330        for (let c of client.room.clients) {331            c.sendJSON({cmd: "newItem", item, lane, user: client.user});332        }333    },334    newItem: async (client, { itemId, laneId, videoBytes, backingTrackId, referenceOutputStartTime }, data) => {335        requireUuid(itemId);336        clientLog(client, "New item:", itemId, data.length-videoBytes, "bytes of audio, ", videoBytes, "bytes of video");337        fs.mkdirSync(".items", {recursive: true});338        fs.writeFileSync(`.items/${itemId}.original.vid`, data.subarray(0,videoBytes));339        fs.writeFileSync(`.items/${itemId}.reference.aud`, data.subarray(videoBytes));340        await new Promise((resolve, reject) => ffmpeg(`.items/${itemId}.original.vid`)341            // Extract the recorded audio from the video342            .output(`.items/${itemId}.aud`)343            .noVideo()344            .format("f32le")345            .audioCodec("pcm_f32le")346            .audioFrequency(44100)347            .audioChannels(1)348            // Strip the audio from the video349            .output(`.items/${itemId}.vid`)350            .noAudio()351            .videoCodec("copy")352            .format("matroska")353            .on('error', reject)354            .on('end', resolve)355            .run());356        let offset = align(itemId);357        await exportWav(`.items/${itemId}.aud`);358        await exportWav(`.items/${itemId}.cancelled.aud`);359        await exportWav(`.items/${itemId}.reference.aud`);360        let lane = await getLane(laneId);361        if (!lane) {362            // No valid lane was provided. Create a new lane for this user.363            lane = await _createLane(client.room.currentProjectId, client.user.userId);364        }365        let itemIdx = (await listItemsByProject(client.room.currentProjectId)).filter(i => i.laneId === lane.laneId).length;366        let item = await addItem(itemId, lane.laneId, referenceOutputStartTime, 0, 0, itemIdx, `/.items/${itemId}.cancelled.aud`, `/.items/${itemId}.vid`, offset);367        for (let c of client.room.clients) {368            c.sendJSON({cmd: "newItem", item, lane, user: client.user});369        }370    },371    deleteItem: async (client, {itemId}) => {372        requireConductor(client);373        let item = await db.getItem(itemId);374        if (item) {375            await _deleteItem(client, item);376        }377    },378    deleteLane: async (client, {laneId}) => {379        requireConductor(client);380        let lane = await db.getLane(laneId);381        if (lane) {382            for (let item of await listItemsByLane(laneId)) {383                await _deleteItem(client, item);384            }385            conduct(client.room, {cmd: "deleteLane", laneId});386            await deleteLane(laneId);387        }388    },389    updateLane: async (client, {lane}) => {390        requireConductor(client); // TODO: Or owner of lane.391        await saveLane(lane);392        let items = await listItemsByLane(lane.laneId);393        let user = await getUser(lane.userId);394        conduct(client.room, {cmd: "updateLane", lane, items, user});395    },396    setTargetLane: async (client, {userId, laneId}) => {397        requireConductor(client);398        if (userId !== client.user.userId) {399            for(let c of client.room.clients) {400                if (c.user.userId === userId) {401                    c.sendJSON({cmd: "setTargetLane", userId, laneId});402                }403            }404        }405    },406    updateItem: async (client, {item}) => {407        requireConductor(client); // TODO: Or owner of item.408        let lane = await getLane(item.laneId);409        if (item.newLaneId !== undefined) {410            lane = await _createLane(client.room.currentProjectId, lane.userId);411            item.laneId = lane.laneId;412            delete item.newLaneId;413        }414        await saveItem(item);415        for (let c of client.room.clients) {416            c.sendJSON({cmd: "updateItem", item, lane});417        }418    },419    setRehearsalState: async (client, {roomId, rehearsalState}) => {420        requireConductor(client);421        client.room.rehearsalState = rehearsalState;422        conduct(client.room, {cmd: "setRehearsalState", rehearsalState});423        await saveRoom(client.room);424    },425    rtcRequestOffer: async (client) => {426        client.peer = new Peer({ initiator: true, wrtc });427        for (let t of RTCTransceivers) {428            client.peer.addTransceiver(/video|audio/.exec(t)[0]);429        }430        client.peer.on("signal", data => {431            client.sendJSON({cmd: "rtcSignal", data})432        });433        client.peer.on("error", err => {434            if (err.message !== "Ice connection failed.") {435                console.error(err);436            }437        });438        if (!client.conducting) {439            if (client.room.conductor) {440                let conductorVideo = client.room.conductor?.peer.getTransceiver(RTCTransceivers.MY_VIDEO).receiver.track441                let conductorAudio = client.room.conductor?.peer.getTransceiver(RTCTransceivers.MY_AUDIO).receiver.track442                await client.peer.getTransceiver(RTCTransceivers.CONDUCTOR_VIDEO).sender.replaceTrack(conductorVideo);443                await client.peer.getTransceiver(RTCTransceivers.CONDUCTOR_AUDIO).sender.replaceTrack(conductorAudio);444            }445            let videoSink = new RTCVideoSink(client.peer.getTransceiver(RTCTransceivers.MY_VIDEO).receiver.track);446            videoSink.addEventListener("frame", async ({frame}) => {447                if (client.room && !client.conducting) {448                    let myIdx = client.room.singers.indexOf(client);449                    let gridSize = Math.ceil(Math.sqrt(client.room.singers.length));450                    let gridX = myIdx % gridSize;451                    let gridY = Math.floor(myIdx / gridSize);452                    let tileWidth = 640/gridSize;453                    let tileHeight = 480/gridSize;454                    try {455                        //let start = performance.now();456                        video.i420overlay(frame.data.buffer, client.room.video.frame.data.buffer, frame.width, frame.height, gridX * tileWidth, gridY * tileHeight, tileWidth, tileHeight);457                        //console.log("Frame processing took", (performance.now() - start).toFixed(3), "ms");458                    } catch (e) {459                        console.error(e);460                    }461                }462            });463        } else {464            let conductorVideo = client.peer.getTransceiver(RTCTransceivers.MY_VIDEO).receiver.track465            let conductorAudio = client.peer.getTransceiver(RTCTransceivers.MY_AUDIO).receiver.track466            for(let c of client.room.singers) {467                if (conductorVideo && c.peer) {468                    await c.peer.getTransceiver(RTCTransceivers.CONDUCTOR_VIDEO).sender.replaceTrack(conductorVideo);469                    await c.peer.getTransceiver(RTCTransceivers.CONDUCTOR_AUDIO).sender.replaceTrack(conductorAudio);470                }471            }472        }473        await client.peer.getTransceiver(RTCTransceivers.CHOIR_VIDEO).sender.replaceTrack(client.room.video.source.createTrack());474        if (client?.room.speaker) {475            await client.peer.getTransceiver(RTCTransceivers.SPEAKER_VIDEO).sender.replaceTrack(client.room.speaker.peer.getTransceiver(RTCTransceivers.MY_VIDEO).receiver.track);476            await client.peer.getTransceiver(RTCTransceivers.SPEAKER_AUDIO).sender.replaceTrack(client.room.speaker !== client ? client.room.speaker.peer.getTransceiver(RTCTransceivers.MY_AUDIO).receiver.track : null);477            client.sendJSON({cmd: "nowSpeaking", user: client.room.speaker.user});478        }479    },480    rtcSignal: async (client, {data}) => {481        if (client.peer) {482            client.peer.signal(data);483        }484    },485    requestSpeak: async (client, {wantsToSpeak}) => {486        if (client.room.speaker && client.room.speaker !== client) {487            return false;488        }489        if (client.peer && !client.conducting) {490            client.room.speaker = wantsToSpeak ? client : null;491            let videoTrack = wantsToSpeak ? client.peer.getTransceiver(RTCTransceivers.MY_VIDEO).receiver.track : null;492            let audioTrack = wantsToSpeak ? client.peer.getTransceiver(RTCTransceivers.MY_AUDIO).receiver.track : null;493            for(let c of client.room.clients) {494                if (c.peer) {495                    await c.peer.getTransceiver(RTCTransceivers.SPEAKER_VIDEO).sender.replaceTrack(videoTrack);496                    await c.peer.getTransceiver(RTCTransceivers.SPEAKER_AUDIO).sender.replaceTrack(c !== client ? audioTrack : null);497                    c.sendJSON({cmd: "nowSpeaking", user: wantsToSpeak ? client.user : null});498                }499            }500            return wantsToSpeak;501        }502        return false;503    },504    muteChoir: async (client) => {505        requireConductor(client);506        if (client.room) {507            client.room.speaker = null;508            for (let c of client.room.clients) {509                if (c.peer) {510                    await c.peer.getTransceiver(RTCTransceivers.SPEAKER_VIDEO).sender.replaceTrack(null);511                    await c.peer.getTransceiver(RTCTransceivers.SPEAKER_AUDIO).sender.replaceTrack(null);512                    c.sendJSON({cmd: "nowSpeaking", user: null});513                }514            }515        }516    },517    uploadLyrics: async (client, {projectId, srtText, filename}) => {518        requireConductor(client);519        let path = `.lyrics/${projectId}.${filename}`;520        fs.mkdirSync(".lyrics", {recursive: true});521        fs.writeFileSync(path, srtText);522        let project = await getProject(projectId);523        if (project) {524            project.lyricsUrl = `/${path}`;525            await _saveAndBroadcastProject(client, project);...

core.js

Source:core.js

...5    return new Promise((resolve, reject) => {6        s.peer = new Peer();7        s.peer.on("signalingStateChange", state => {8            if (state === "have-remote-offer") {9                s.peer.getTransceiver(RTCTransceivers.MY_VIDEO).direction = "sendonly";10                s.peer.getTransceiver(RTCTransceivers.MY_AUDIO).direction = "sendonly";11            }12        });13        s.peer.on("signal", data => {14            dispatch({15                type: "ws/call",16                fn: "rtcSignal",17                kwargs: { data },18                _log: false,19            });20        });21        s.peer.on("connect", async () => {22            console.log("RTC Connected");23            resolve({24                conductorVideo: s.peer.getTransceiver(RTCTransceivers.CONDUCTOR_VIDEO).receiver.track,25                conductorAudio: s.peer.getTransceiver(RTCTransceivers.CONDUCTOR_AUDIO).receiver.track,26                choirVideo: s.peer.getTransceiver(RTCTransceivers.CHOIR_VIDEO).receiver.track,27                speakerAudio: s.peer.getTransceiver(RTCTransceivers.SPEAKER_AUDIO).receiver.track,28            });29        });30        s.peer._pc.ontrack = (receiver, streams, transceiver) => {31            console.log("RTC Received track", transceiver);32        };33        s.peer.on("data", data => {34            console.log("[RTC Data]", data);35        });36        dispatch({37            type: "ws/call",38            fn: "rtcRequestOffer"39        });40    });41}42export const setMe = async (me) => {43    s.me = me44    if (s.peer) {45        await s.peer.getTransceiver(RTCTransceivers.MY_VIDEO).sender.replaceTrack(me?.getVideoTracks()[0]);46        await s.peer.getTransceiver(RTCTransceivers.MY_AUDIO).sender.replaceTrack(me?.getAudioTracks()[0]);47    }48}49export const signal = (data) => {50    if (s.peer) {51        s.peer.signal(data);52    }53}54export const muteOutput = async () => {55    await s.peer.getTransceiver(RTCTransceivers.MY_AUDIO).sender.replaceTrack(null);56}57export const unmuteOutput = async () => {58    await s.peer.getTransceiver(RTCTransceivers.MY_AUDIO).sender.replaceTrack(s.me?.getAudioTracks()[0]);...

AdminProtocol.mjs

Source:AdminProtocol.mjs

1//A specification for the dual protocols we use between client and server2import DPTransceiver, {tID, Protocol, DataInterpreter} from "./../Protocol.mjs"3//Protocols for sending of each (other receives using that protocol)4let srvsend = new Protocol([2, tID.uint8]); //ModuleID, EffectCode5let adminsend = new Protocol([1, tID.uint8]); //6function GetTransceiver(cnxn, recv, send) {7   return new DPTransceiver(cnxn, recv, new DataInterpreter(send));8};9//All of these semantic protocol modules generally come in Client/Server pairs of this form:10export let ServerTransceiver = (cnxn => GetTransceiver(cnxn, adminsend, srvsend));...

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