Files
video_socket-server/client/public/call/store.js
2026-06-02 02:34:40 +08:00

1366 lines
55 KiB
JavaScript

import { mockCallSession } from './models.js';
import { RenderStreaming } from '/module/core/renderstreaming.js';
import { getServerConfig, getRTCConfiguration } from '../render-streaming/config.js';
import { showNotification, generateId } from '../shared/utils.js';
import chatMessage from './chat/chatmessage.js';
import { DEFAULT_PARTICIPANT_AVATAR, DEFAULT_PARTICIPANT_NAME, buildParticipantsSyncData, omitParticipant, removeParticipant, upsertParticipant } from './participants/participants.js';
import { AUDIO_CONFIG, VAD_CONFIG, VIDEO_ONLY_CONSTRAINT, buildVideoConstraints, getAdaptiveVideoBitrate, getResolutionLabel, getTargetResolutionBitrate } from './media/media-config.js';
import { buildStatsLogPayload, createAudioAnalyser, getAudioLevel } from './media/media-monitoring.js';
import { bindInviteSocketEvents, buildSocketUserInfoPayload, createSignalingInstance, ensureSignalingStarted, getActiveSignalingInstance, sendInviteSignal, sendSocketUserInfo } from './signaling/signaling-session.js';
import { getNetworkQualityFromSummary, summarizeInboundStats } from './media/webrtc-stats.js';
import { createLogger } from '../shared/logger.js';
import { MeetingRecorder } from './media/meeting-recorder.js';
import { ServerRecordingPeer } from './media/server-recording-peer.js';
const logger = createLogger('store');
class CallStateManager {
constructor() {
this.state = {
id: generateId(),
session: {
...mockCallSession,
status: 'idle'
},
localStream: null,
remoteStream: null,
remoteStreams: {},
participants: {}
};
this.listeners = [];
this.socketEventHandlers = {};
this._inviteEventSignaling = null;
this._recordingEventSignaling = null;
this.serverRecordingSession = null;
this.serverRecordingPeer = null;
this.meetingRecorder = new MeetingRecorder();
}
subscribe(callback) {
this.listeners.push(callback);
return () => {
this.listeners = this.listeners.filter(cb => cb !== callback);
};
}
notify(changes) {
this.listeners.forEach(cb => cb(this.state, changes));
}
async init() {
await this.setupConfig();
this.loadUserSettings();
await this.getLocalStream();
}
loadUserSettings() {
const userSettings = localStorage.getItem('userSettings');
if (userSettings) {
try {
const settings = JSON.parse(userSettings);
if (settings.name || settings.avatar) {
this.state.session.localUser = {
...this.state.session.localUser,
id: settings.userId || this.state.session.localUser.id,
name: settings.name || this.state.session.localUser.name,
avatar: settings.avatar || this.state.session.localUser.avatar
};
this.notify({ type: 'USER_SETTINGS_UPDATED', user: this.state.session.localUser });
}
if (settings.resolution) {
this._savedResolution = settings.resolution;
logger.debug(`已恢复分辨率设置: ${settings.resolution.width}x${settings.resolution.height}`);
}
}
catch (error) {
logger.error('Error loading user settings:', error);
}
}
}
async setupConfig() {
const res = await getServerConfig();
this.useWebSocket = res.useWebSocket;
}
async getLocalStream() {
try {
logger.debug('Requesting camera permission...');
if (!navigator.mediaDevices || !navigator.mediaDevices.getUserMedia) {
logger.error('getUserMedia is not supported');
throw new Error('getUserMedia is not supported');
}
const videoConstraints = buildVideoConstraints(this._savedResolution);
const stream = await navigator.mediaDevices.getUserMedia({
video: videoConstraints,
audio: AUDIO_CONFIG
});
logger.debug('Stream obtained successfully:', stream);
logger.debug('Video tracks:', stream.getVideoTracks());
logger.debug('Audio tracks:', stream.getAudioTracks());
this.state.localStream = stream;
this.state.session.localUser.mediaState.video = true;
this.state.session.localUser.mediaState.audio = true;
logger.debug('Local stream stored, notifying UI...');
this.notify({ type: 'LOCAL_STREAM_OBTAINED', stream });
this.notify({ type: 'LOCAL_MEDIA_CHANGE', mediaType: 'video', value: true });
this.notify({ type: 'LOCAL_MEDIA_CHANGE', mediaType: 'audio', value: true });
this.emitMediaStateChange();
this.startActivityDetection(this.state.localStream, { isLocal: true });
}
catch (error) {
logger.error('Error getting local stream:', error);
this.state.session.localUser.mediaState.video = false;
this.state.session.localUser.mediaState.audio = false;
this.notify({ type: 'LOCAL_MEDIA_CHANGE', mediaType: 'video', value: false });
this.notify({ type: 'LOCAL_MEDIA_CHANGE', mediaType: 'audio', value: false });
}
}
async updateLocalMedia(mediaType, value) {
await this._updateLocalMediaRefactored(mediaType, value);
return;
}
async toggleRecording() {
const isRecording = this.state.session.localUser.mediaState.recording || false;
if (this.useWebSocket && this.connectionId) {
return isRecording ? this.stopServerRecording() : this.startServerRecording();
}
if (isRecording) {
return this.stopRecording();
}
return this.startRecording();
}
async startServerRecording() {
if (this.state.session.status !== 'ongoing') {
throw new Error('会议连接成功后才能开始录制');
}
const response = await fetch('/api/recording-sessions', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
connectionId: this.connectionId,
layout: 'grid',
format: 'webm'
})
});
const responseBody = await response.json().catch(() => ({}));
if (!response.ok || responseBody.success === false) {
throw new Error(responseBody.message || '服务端录制启动失败');
}
this.serverRecordingSession = responseBody.session;
this._setRecordingMediaState(true);
return {
recording: true,
message: '服务端录制已开始'
};
}
async stopServerRecording() {
const recordingId = this.serverRecordingSession?.id;
if (!recordingId) {
this._setRecordingMediaState(false);
return {
recording: false,
message: '服务端录制已停止'
};
}
const response = await fetch(`/api/recording-sessions/${encodeURIComponent(recordingId)}`, {
method: 'DELETE'
});
const responseBody = await response.json().catch(() => ({}));
if (!response.ok || responseBody.success === false) {
throw new Error(responseBody.message || '服务端录制停止失败');
}
this.serverRecordingSession = responseBody.session;
this._setRecordingMediaState(false);
return {
recording: false,
message: '服务端录制已停止'
};
}
_setRecordingMediaState(value) {
this.state.session.localUser.mediaState.recording = value;
this._notifyLocalMediaChange('recording', value);
this.emitMediaStateChange();
this._notifyUserListUpdate();
}
async startRecording() {
if (this.state.session.status !== 'ongoing') {
throw new Error('会议连接成功后才能开始录制');
}
await this.meetingRecorder.start({
localStream: this.state.localStream,
remoteStream: this.state.remoteStream,
remoteStreams: this.state.remoteStreams,
connectionId: this.connectionId
});
await this._updateLocalMediaRefactored('recording', true);
return {
recording: true,
message: '开始录制会议'
};
}
async stopRecording() {
const result = await this.meetingRecorder.stop();
await this._updateLocalMediaRefactored('recording', false);
if (!result) {
return {
recording: false,
message: '停止录制会议'
};
}
try {
const uploadResult = await this.uploadRecording(result);
return {
recording: false,
message: uploadResult?.url ? `录制已上传到服务器:${uploadResult.url}` : `录制已上传:${result.filename}`
};
}
catch (error) {
logger.error('Recording upload failed:', error);
this.meetingRecorder.download(result.blob, result.filename);
return {
recording: false,
message: `上传失败,已下载到本地:${result.filename}`
};
}
}
async uploadRecording({ blob, filename }) {
const formData = new FormData();
const people = this.buildRecordingPeopleMetadata();
formData.append('meetingId', this.connectionId || this.state.session.id || 'unknown');
formData.append('userId', this.state.session.localUser.id || '');
formData.append('filename', filename);
if (people.host) {
formData.append('host', JSON.stringify(people.host));
}
formData.append('participants', JSON.stringify(people.participants));
formData.append('recording', blob, filename);
const response = await fetch('/api/recordings', {
method: 'POST',
body: formData
});
const responseBody = await response.json().catch(() => ({}));
if (!response.ok || responseBody.success === false) {
throw new Error(responseBody.message || 'Recording upload failed');
}
return responseBody;
}
buildRecordingPeopleMetadata() {
const localUser = this.state.session.localUser || {};
const remoteUser = this.state.session.remoteUser || {};
const members = Object.entries(this.state.participants || {}).map(([participantId, participant]) => (
this._buildRecordingPerson(participant, participant.role || 'participant', participantId)
));
const remoteHost = members.find(member => member.role === 'host');
const localPerson = this._buildRecordingPerson(
localUser,
this.role === 'host' || localUser.isHost ? 'host' : 'participant',
this.selfParticipantId || (this.role === 'host' ? 'host' : 'local')
);
if (localPerson.role === 'host') {
return {
host: localPerson,
participants: members.filter(member => member.role !== 'host')
};
}
return {
host: remoteHost || this._buildRecordingPerson(remoteUser, 'host', 'host'),
participants: [
localPerson,
...members.filter(member => member.role !== 'host' && member.participantId !== localPerson.participantId)
]
};
}
_buildRecordingPerson(user = {}, role = 'participant', participantId = '') {
return {
participantId,
userId: user.id || user.userId || '',
id: user.id || user.userId || '',
name: user.name || '',
avatar: user.avatar || '',
role,
status: user.status || '',
mediaState: user.mediaState ? { ...user.mediaState } : undefined
};
}
async _updateLocalMediaRefactored(mediaType, value) {
if (mediaType === 'video' && value) {
await this._enableLocalVideo();
this._refreshServerRecordingPeer();
this._notifyUserListUpdate();
return;
}
this.state.session.localUser.mediaState[mediaType] = value;
this._notifyLocalMediaChange(mediaType, value);
this.emitMediaStateChange();
if (mediaType === 'video' && !value) {
this._disableLocalVideoTracks();
}
if (mediaType === 'audio') {
this._setLocalAudioTrackEnabled(value);
}
this._refreshServerRecordingPeer();
this._notifyUserListUpdate();
}
async _enableLocalVideo() {
try {
const newVideoTrack = await this._requestNewVideoTrack();
this._replaceLocalVideoTrack(newVideoTrack);
await this._updateOutgoingVideoTrack(newVideoTrack);
this.state.session.localUser.mediaState.video = true;
this.notify({ type: 'LOCAL_STREAM_OBTAINED', stream: this.state.localStream });
this._notifyLocalMediaChange('video', true);
this.emitMediaStateChange();
this.startActivityDetection(this.state.localStream, { isLocal: true });
}
catch (error) {
logger.error('Error reopening video:', error);
this.state.session.localUser.mediaState.video = false;
this._notifyLocalMediaChange('video', false);
}
}
async _requestNewVideoTrack() {
const newVideoStream = await navigator.mediaDevices.getUserMedia(VIDEO_ONLY_CONSTRAINT);
const newVideoTrack = newVideoStream.getVideoTracks()[0];
if (!newVideoTrack) {
throw new Error('Failed to get video track');
}
return newVideoTrack;
}
_replaceLocalVideoTrack(newVideoTrack) {
if (this.state.localStream) {
const oldVideoTracks = this.state.localStream.getVideoTracks();
oldVideoTracks.forEach(track => {
track.stop();
this.state.localStream.removeTrack(track);
});
this.state.localStream.addTrack(newVideoTrack);
return;
}
this.state.localStream = new MediaStream([newVideoTrack]);
}
async _updateOutgoingVideoTrack(newVideoTrack) {
if (!this.renderstreaming) {
return;
}
logger.debug('Updating video track in WebRTC connection');
if (this.role === 'host') {
const participantIds = Object.keys(this.state.remoteStreams);
for (const participantId of participantIds) {
await this._updateVideoTrackForPeer(newVideoTrack, participantId);
}
return;
}
await this._updateVideoTrackForPeer(newVideoTrack);
}
async _updateVideoTrackForPeer(newVideoTrack, participantId = undefined) {
const transceivers = this.renderstreaming.getTransceivers(participantId);
if (!transceivers) {
return;
}
const videoTransceivers = transceivers.filter(transceiver => transceiver.sender && transceiver.sender.track && transceiver.sender.track.kind === 'video');
if (videoTransceivers.length > 0) {
await this._replaceVideoTrackOnTransceivers(videoTransceivers, newVideoTrack, participantId);
}
else {
this._addVideoTransceiver(newVideoTrack, participantId);
}
this._scheduleVideoSenderUpdate(participantId);
}
async _replaceVideoTrackOnTransceivers(videoTransceivers, newVideoTrack, participantId) {
for (const transceiver of videoTransceivers) {
try {
await transceiver.sender.replaceTrack(newVideoTrack);
logger.debug(participantId
? `Replaced video track for participant ${participantId}`
: 'Successfully replaced video track');
}
catch (error) {
logger.error(participantId
? `Error replacing video track for ${participantId}:`
: 'Error replacing video track:', error);
}
}
}
_addVideoTransceiver(newVideoTrack, participantId) {
try {
if (participantId) {
this.renderstreaming.addTransceiver(newVideoTrack, { direction: 'sendonly' }, participantId);
logger.debug(`Added new video transceiver for participant ${participantId}`);
return;
}
this.renderstreaming.addTransceiver(newVideoTrack, { direction: 'sendonly' });
logger.debug('Added new video transceiver');
}
catch (error) {
logger.error(participantId
? `Error adding video transceiver for ${participantId}:`
: 'Error adding video transceiver:', error);
}
}
_scheduleVideoSenderUpdate(participantId) {
setTimeout(() => { this.setCodecPreferences(participantId); }, 100);
setTimeout(() => { this.setVideoEncodingParameters(participantId); }, 200);
}
_disableLocalVideoTracks() {
if (!this.state.localStream) {
return;
}
this.state.session.localUser.mediaState.video = false;
this.state.localStream.getTracks().forEach(track => {
if (track.kind === 'video') {
track.stop();
}
});
}
_setLocalAudioTrackEnabled(value) {
if (!this.state.localStream) {
return;
}
this.state.session.localUser.mediaState.audio = value;
this.state.localStream.getTracks().forEach(track => {
if (track.kind === 'audio') {
track.enabled = value;
}
});
}
_notifyLocalMediaChange(mediaType, value) {
this.notify({ type: 'LOCAL_MEDIA_CHANGE', mediaType, value });
}
_notifyUserListUpdate() {
this.notify({
type: 'USER_LIST_UPDATE',
localUser: this.state.session.localUser,
remoteUser: this.state.session.remoteUser
});
}
onSocketEvent(eventName, handler) {
this.socketEventHandlers[eventName] = handler;
}
async connectSignaling() {
await this.setupConfig();
const { signaling, reused } = await ensureSignalingStarted(this._signaling, this.useWebSocket);
this._signaling = signaling;
this._inviteEventSignaling = bindInviteSocketEvents(this._signaling, this.socketEventHandlers, this._inviteEventSignaling);
if (reused) {
logger.debug('Signaling already connected, reusing existing instance');
return this._signaling;
}
logger.debug('Signaling connected (WebSocket only, no room yet)');
return this._signaling;
}
getActiveSignaling() {
return getActiveSignalingInstance(this._signaling, this.renderstreaming);
}
sendInviteCall(payload) {
sendInviteSignal(this.getActiveSignaling(), 'sendInviteCall', payload);
}
sendInviteAccepted(payload) {
sendInviteSignal(this.getActiveSignaling(), 'sendInviteAccepted', payload);
}
sendInviteRejected(payload) {
sendInviteSignal(this.getActiveSignaling(), 'sendInviteRejected', payload);
}
syncSocketUserInfo(userInfo = null) {
const payload = buildSocketUserInfoPayload(userInfo, this.state.session.localUser);
this.state.session.localUser = {
...this.state.session.localUser,
id: payload.id,
name: payload.name,
avatar: payload.avatar
};
sendSocketUserInfo(this.getActiveSignaling(), payload);
}
async _createSignalingAndRTC(connectionId) {
this.connectionId = connectionId;
this.state.session.status = 'connecting';
this.notify({ type: 'CALL_STATUS_CHANGE', status: 'connecting' });
if (!this.state.localStream) {
logger.debug('Local stream not available, waiting for initialization...');
await new Promise((resolve) => {
const checkStream = () => {
if (this.state.localStream) {
resolve();
}
else {
setTimeout(checkStream, 100);
}
};
checkStream();
});
}
const signaling = this._signaling || createSignalingInstance(this.useWebSocket);
const config = getRTCConfiguration();
this.renderstreaming = new RenderStreaming(signaling, config);
this._signaling = null;
}
async setUp(connectionId) {
await this._createSignalingAndRTC(connectionId);
this._registerCallbacks();
await this._startConnection(connectionId);
}
_registerCallbacks() {
this._ensureServerRecordingPeer();
this._bindRecordingSignalHandlers();
this.renderstreaming.onNewPeer = (participantId) => {
logger.debug(`New peer created for ${participantId}, adding local tracks`);
if (this.state.localStream) {
const tracks = this.state.localStream.getTracks();
for (const track of tracks) {
this.renderstreaming.addTransceiver(track, { direction: 'sendonly' }, participantId);
}
this.setCodecPreferences(participantId);
this.setVideoEncodingParameters(participantId);
}
};
this.renderstreaming.onConnect = (connectionId, data) => {
if (data && data.role) {
this.role = data.role;
this.state.session.localUser.isHost = (this.role === 'host');
if (data.participantId) {
this.selfParticipantId = data.participantId;
}
logger.debug(`Connected as ${this.role}, participantId: ${this.selfParticipantId}`);
}
this.state.session.status = 'ongoing';
this.notify({ type: 'CALL_STATUS_CHANGE', status: 'ongoing' });
if (this.role === 'participant') {
if (this.state.localStream) {
this.state.localStream.getAudioTracks().forEach(track => {
track.enabled = false;
});
}
this.state.session.localUser.mediaState.audio = false;
this.notify({ type: 'LOCAL_MEDIA_CHANGE', mediaType: 'audio', value: false });
logger.debug('Participant joined with audio muted by default');
}
this.sendMessage('user-info', {
id: this.state.session.localUser.id,
name: this.state.session.localUser.name,
avatar: this.state.session.localUser.avatar
});
this.emitMediaStateChange();
if (this.state.localStream) {
this.showStatsMessage();
}
else {
logger.error('Local stream is not available');
showNotification('本地视频流不可用', 'error');
}
};
this.renderstreaming.onDisconnect = () => {
logger.debug('Received disconnect from server, host left or room closed');
this.hangUp();
};
this.renderstreaming.onGotAnswer = (connectionId) => {
logger.debug('SDP Answer received, resetting encoding parameters for connectionId:', connectionId);
if (this.role === 'host') {
const allParticipantIds = Object.keys(this.state.remoteStreams || {});
for (const pid of allParticipantIds) {
setTimeout(() => { this.setVideoEncodingParameters(pid); }, 50);
}
}
else {
setTimeout(() => { this.setVideoEncodingParameters(); }, 50);
}
};
this.renderstreaming.onParticipantJoined = (participantId) => {
logger.debug(`Participant joined: ${participantId}`);
this._upsertParticipant(participantId);
this._notifyParticipantsUpdate();
this.broadcastParticipantsList();
};
this.renderstreaming.onParticipantLeft = (participantId) => {
logger.debug(`Participant left: ${participantId}, room still active`);
this.updateRemoteUserStatus('offline');
this.updateRemoteUserNetworkQuality('no_signal');
showNotification('对方已离开通话', 'warning');
if (this.state.remoteStreams[participantId]) {
this.state.remoteStreams[participantId].getTracks().forEach(track => track.stop());
delete this.state.remoteStreams[participantId];
}
if (this.state.remoteStream) {
this.state.remoteStream.getTracks().forEach(track => track.stop());
this.state.remoteStream = null;
}
this._removeParticipant(participantId);
this.notify({ type: 'PARTICIPANT_LEFT', connectionId: participantId });
this._notifyParticipantsUpdate();
this.broadcastParticipantsList();
};
this.renderstreaming.onTrackEvent = (data) => {
this._handleTrackEvent(data);
};
this.renderstreaming.onMessage = (data) => {
this._handleRenderStreamingMessage(data);
};
}
_ensureServerRecordingPeer() {
if (this.serverRecordingPeer) {
return this.serverRecordingPeer;
}
this.serverRecordingPeer = new ServerRecordingPeer({
rtcConfiguration: getRTCConfiguration(),
getLocalStream: () => this.state.localStream,
getSignaling: () => this.getActiveSignaling(),
getConnectionId: () => this.connectionId,
getParticipantId: () => this.selfParticipantId || (this.role === 'host' ? 'host' : '')
});
return this.serverRecordingPeer;
}
_bindRecordingSignalHandlers() {
const signaling = this.renderstreaming?._signaling;
if (!signaling || signaling === this._recordingEventSignaling || typeof signaling.addEventListener !== 'function') {
return;
}
signaling.addEventListener('recording-started', (event) => {
this._handleRecordingStarted(event.detail);
});
signaling.addEventListener('recording-peer-request', (event) => {
this._handleRecordingPeerRequest(event.detail);
});
signaling.addEventListener('recording-stopped', (event) => {
this._handleRecordingStopped(event.detail);
});
signaling.addEventListener('recording-status', (event) => {
this._handleRecordingStatus(event.detail);
});
signaling.addEventListener('recording-answer', (event) => {
this._handleRecordingAnswer(event.detail);
});
signaling.addEventListener('recording-candidate', (event) => {
this._handleRecordingCandidate(event.detail);
});
this._recordingEventSignaling = signaling;
}
async _startConnection(connectionId) {
await this.renderstreaming.start();
await this.renderstreaming.createConnection(connectionId);
this.startNetworkQualityDetection();
this.startActivityDetection(this.state.localStream, { isLocal: true });
this.startActivityDetection(this.state.remoteStream, { isLocal: false });
}
async hangUp() {
if (this.meetingRecorder?.isRecording()) {
try {
await this.stopRecording();
}
catch (error) {
logger.error('Error stopping recording before hangUp:', error);
}
}
this.clearStatsMessage();
this.stopNetworkQualityDetection();
if (this.serverRecordingPeer) {
this.serverRecordingPeer.stop();
}
if (this.durationInterval) {
clearInterval(this.durationInterval);
this.durationInterval = null;
}
this.durationSynced = false;
const isHost = this.role === 'host';
logger.debug(`Disconnect peer on ${this.connectionId}. Role: ${this.role}`);
if (this.renderstreaming) {
try {
await this.renderstreaming.deleteConnection();
await this.renderstreaming.stop();
}
catch (error) {
logger.error('Error during hangUp:', error);
}
this.renderstreaming = null;
}
this.updateRemoteUserStatus('offline');
this.updateRemoteUserNetworkQuality('no_signal');
this.state.participants = {};
this.selfParticipantId = null;
this.connectionId = null;
this.role = null;
this.state.session.status = 'ended';
this.notify({ type: 'CALL_ENDED', reason: isHost ? 'host_hangup' : 'participant_hangup' });
}
_handleTrackEvent(data) {
const direction = data.transceiver.direction;
if (direction === 'sendrecv' || direction === 'recvonly') {
this._handleIncomingTrack(data);
return;
}
if (direction === 'sendonly' && data.track.kind === 'audio') {
this.startActivityDetection(this.state.localStream, { isLocal: true });
}
}
_handleIncomingTrack(data) {
const trackParticipantId = data.participantId || this.connectionId;
const isHost = this.role === 'host';
const targetStream = this._getOrCreateRemoteStream(trackParticipantId, isHost);
this._replaceTrackOfSameKind(targetStream, data.track);
logger.debug('Added new track:', data.track.kind, 'for participant:', trackParticipantId);
if (isHost && !this.state.participants[trackParticipantId]) {
this._upsertParticipant(trackParticipantId);
this._notifyParticipantsUpdate();
this.broadcastParticipantsList();
}
this._notifyRemoteStreamUpdate(targetStream, trackParticipantId, isHost, data.track.kind);
if (this.state.session.remoteUser.status !== 'online') {
this.updateRemoteUserStatus('online');
this.updateRemoteUserNetworkQuality('good');
this.sendMessage('user-info', {
id: this.state.session.localUser.id,
name: this.state.session.localUser.name,
avatar: this.state.session.localUser.avatar
});
this._startDurationTimer();
}
if (data.track.kind === 'audio') {
this.startActivityDetection(this.state.remoteStream, { isLocal: false });
}
}
_getOrCreateRemoteStream(trackParticipantId, isHost) {
if (isHost) {
if (!this.state.remoteStreams[trackParticipantId]) {
this.state.remoteStreams[trackParticipantId] = new MediaStream();
}
return this.state.remoteStreams[trackParticipantId];
}
if (this.state.remoteStream == null) {
this.state.remoteStream = new MediaStream();
}
return this.state.remoteStream;
}
_replaceTrackOfSameKind(targetStream, track) {
const existingTracks = targetStream.getTracks().filter(existingTrack => existingTrack.kind === track.kind);
existingTracks.forEach(existingTrack => {
targetStream.removeTrack(existingTrack);
logger.debug('Removed old track:', existingTrack.kind);
});
targetStream.addTrack(track);
}
_notifyRemoteStreamUpdate(targetStream, trackParticipantId, isHost, trackKind) {
const notifyStreamUpdate = () => {
this.notify({
type: 'REMOTE_STREAM_OBTAINED',
stream: targetStream,
connectionId: trackParticipantId,
isHost
});
logger.debug('Notified UI about remote stream update');
};
if (trackKind === 'audio' && targetStream.getVideoTracks().length === 0) {
logger.debug('Audio track arrived first, delaying stream notification for video track...');
setTimeout(() => {
const nowHasVideo = targetStream.getVideoTracks().length > 0;
logger.debug(`After delay, stream has video: ${nowHasVideo}`);
notifyStreamUpdate();
}, 200);
return;
}
notifyStreamUpdate();
}
_handleRenderStreamingMessage(data) {
logger.debug('收到信令消息:', data);
switch (data.type) {
case 'chat-message':
this._handleChatMessage(data);
break;
case 'media-state-changed':
this._handleMediaStateChangedMessage(data);
break;
case 'user-info':
this._handleUserInfoMessage(data);
break;
case 'participants-sync':
this._handleParticipantsSyncMessage(data);
break;
default:
break;
}
}
_isCurrentRecordingEvent(data) {
return data && (!data.connectionId || data.connectionId === this.connectionId);
}
_handleRecordingStarted(data) {
if (!this._isCurrentRecordingEvent(data)) {
return;
}
this.serverRecordingSession = {
id: data.recordingId,
connectionId: data.connectionId,
status: data.status,
layout: data.layout,
format: data.format,
startedAt: data.startedAt
};
this._setRecordingMediaState(true);
showNotification('服务端录制已开始', 'success');
}
_handleRecordingStopped(data) {
if (!this._isCurrentRecordingEvent(data)) {
return;
}
if (this.serverRecordingSession && this.serverRecordingSession.id === data.recordingId) {
this.serverRecordingSession = {
...this.serverRecordingSession,
status: data.status,
stoppedAt: data.stoppedAt
};
}
if (this.serverRecordingPeer) {
this.serverRecordingPeer.stop(data.recordingId);
}
this._setRecordingMediaState(false);
showNotification('服务端录制已停止', 'success');
}
async _handleRecordingPeerRequest(data) {
if (!this._isCurrentRecordingEvent(data)) {
return;
}
logger.debug('收到服务端录制媒体请求:', data);
this.notify({
type: 'RECORDING_PEER_REQUEST',
recordingId: data.recordingId,
mediaMode: data.mediaMode
});
try {
await this._ensureServerRecordingPeer().start(data);
}
catch (error) {
logger.error('服务端录制 PeerConnection 创建失败:', error);
showNotification('服务端录制媒体连接失败', 'error');
}
}
_isServerRecordingActive() {
return this.useWebSocket
&& this.serverRecordingSession
&& this.serverRecordingSession.status === 'recording';
}
_refreshServerRecordingPeer() {
if (!this._isServerRecordingActive() || !this.serverRecordingPeer) {
return;
}
this.serverRecordingPeer.start({
recordingId: this.serverRecordingSession.id,
connectionId: this.connectionId,
mediaMode: 'webrtc-sendonly'
}).catch((error) => {
logger.error('服务端录制媒体重协商失败:', error);
});
}
_handleRecordingStatus(data) {
if (!this._isCurrentRecordingEvent(data)) {
return;
}
logger.debug('收到服务端录制状态:', data);
this.notify({
type: 'RECORDING_STATUS',
status: data.status,
recordingId: data.recordingId
});
}
async _handleRecordingAnswer(data) {
if (!this._isCurrentRecordingEvent(data) || !this.serverRecordingPeer) {
return;
}
try {
await this.serverRecordingPeer.applyAnswer(data);
}
catch (error) {
logger.error('服务端录制 answer 处理失败:', error);
}
}
async _handleRecordingCandidate(data) {
if (!this._isCurrentRecordingEvent(data) || !this.serverRecordingPeer) {
return;
}
try {
await this.serverRecordingPeer.addIceCandidate(data);
}
catch (error) {
logger.error('服务端录制 candidate 处理失败:', error);
}
}
_handleChatMessage(data) {
const chatPayload = data.data || data.message;
if (!chatPayload) {
return;
}
chatMessage.handleChatMessage(chatPayload);
if (data.participantId && this.role === 'host' && this.state.participants[data.participantId]) {
this._upsertParticipant(data.participantId, {
id: chatPayload.senderId,
...(chatPayload.senderName ? { name: chatPayload.senderName } : {}),
...(chatPayload.senderAvatar ? { avatar: chatPayload.senderAvatar } : {})
});
this._notifyParticipantsUpdate();
this.broadcastParticipantsList();
return;
}
if (!this.role || this.role !== 'host') {
if (data.participantId && this.state.participants[data.participantId]) {
this._upsertParticipant(data.participantId, {
...(chatPayload.senderName ? { name: chatPayload.senderName } : {}),
...(chatPayload.senderAvatar ? { avatar: chatPayload.senderAvatar } : {})
});
this._notifyParticipantsUpdate();
}
else if (chatPayload.senderId !== this.state.session.localUser.id) {
this._updateRemoteUserProfile({
id: chatPayload.senderId,
name: chatPayload.senderName,
avatar: chatPayload.senderAvatar
});
}
}
}
_handleMediaStateChangedMessage(data) {
logger.debug('收到媒体状态更新:', data.data, 'from participant:', data.participantId);
if (this.role === 'host') {
if (data.participantId && this.state.participants[data.participantId]) {
this._upsertParticipant(data.participantId, {
mediaState: data.data
});
}
this.updateRemoteMedia(data.data, data.participantId);
this._notifyParticipantsUpdate();
this.broadcastParticipantsList();
return;
}
if (data.participantId && data.participantId !== this.selfParticipantId && this.state.participants[data.participantId]) {
this._upsertParticipant(data.participantId, {
mediaState: data.data
});
this._notifyParticipantsUpdate();
return;
}
if (data.participantId === this.selfParticipantId) {
return;
}
logger.debug('Received media-state-changed from Host, updating remoteUser:', data.data);
this.updateRemoteMedia(data.data, data.participantId);
this._notifyParticipantsUpdate();
}
_handleUserInfoMessage(data) {
logger.debug('收到用户信息:', data.data, 'from participant:', data.participantId);
if (!data.data) {
return;
}
if (data.participantId && this.role === 'host') {
this._upsertParticipant(data.participantId, {
id: data.data.id || '',
name: data.data.name || DEFAULT_PARTICIPANT_NAME,
avatar: data.data.avatar || DEFAULT_PARTICIPANT_AVATAR
});
this._notifyParticipantsUpdate();
this.broadcastParticipantsList();
return;
}
this._updateRemoteUserProfile({
id: data.data.id || this.state.session.remoteUser.id,
name: data.data.name || this.state.session.remoteUser.name,
avatar: data.data.avatar || this.state.session.remoteUser.avatar
});
}
_handleParticipantsSyncMessage(data) {
if (this.role === 'host' || !data.data) {
return;
}
logger.debug('收到成员同步列表:', data.data);
this.state.participants = omitParticipant(data.data, this.selfParticipantId);
this._notifyParticipantsUpdate();
this._syncCallDuration(data.callDuration);
}
_updateRemoteUserProfile(profile) {
this._setRemoteUserState(profile);
this._notifyRemoteUserChange({ mediaState: this.state.session.remoteUser.mediaState });
}
_syncCallDuration(callDuration) {
if (this.durationSynced || typeof callDuration !== 'number') {
return;
}
this.state.session.duration = callDuration;
this.durationSynced = true;
this._startDurationTimer();
this.notify({ type: 'DURATION_UPDATE', duration: this.state.session.duration });
logger.debug(`Call duration synced: ${callDuration} seconds`);
}
_startDurationTimer() {
if (this.durationInterval) {
return;
}
this.durationInterval = setInterval(() => {
this.state.session.duration++;
this.notify({ type: 'DURATION_UPDATE', duration: this.state.session.duration });
}, 1000);
}
_setRemoteUserState(patch) {
this.state.session.remoteUser = {
...this.state.session.remoteUser,
...patch
};
}
_setRemoteUserMediaState(mediaState) {
this._setRemoteUserState({
mediaState: {
...this.state.session.remoteUser.mediaState,
...mediaState
}
});
}
_notifyRemoteUserChange(changes = {}) {
this.notify({
type: 'REMOTE_MEDIA_CHANGE',
...changes,
localUser: this.state.session.localUser,
remoteUser: this.state.session.remoteUser
});
this._notifyUserListUpdate();
}
sendMessage(type, data) {
if (this.renderstreaming) {
this.renderstreaming.sendMessage({
type: type,
data: data
});
}
}
_notifyParticipantsUpdate() {
this.notify({ type: 'PARTICIPANTS_UPDATE', participants: this.state.participants });
}
_upsertParticipant(participantId, patch = {}) {
return upsertParticipant(this.state.participants, participantId, patch);
}
_removeParticipant(participantId) {
return removeParticipant(this.state.participants, participantId);
}
broadcastParticipantsList() {
if (this.role !== 'host' || !this.renderstreaming)
return;
const memberList = buildParticipantsSyncData(this.state.session.localUser, this.state.participants);
this.renderstreaming.sendMessage({
type: 'participants-sync',
data: memberList,
callDuration: this.state.session.duration
});
logger.debug('Broadcast participants list:', Object.keys(memberList));
}
setCodecPreferences(participantId) {
const capabilities = RTCRtpSender.getCapabilities('video');
if (!capabilities || !capabilities.codecs || capabilities.codecs.length === 0)
return;
const { codecs } = capabilities;
let selectedCodecs = [];
const av1Codec = codecs.find(c => c.mimeType === 'video/AV1');
const vp9Codec = codecs.find(c => c.mimeType === 'video/VP9');
const h264HighCodec = codecs.find(c => c.mimeType === 'video/H264' &&
c.sdpFmtpLine && c.sdpFmtpLine.includes('profile-level-id=6400'));
const h264Codec = codecs.find(c => c.mimeType === 'video/H264');
if (av1Codec)
selectedCodecs.push(av1Codec);
if (vp9Codec)
selectedCodecs.push(vp9Codec);
if (h264HighCodec)
selectedCodecs.push(h264HighCodec);
if (h264Codec && (!h264HighCodec || h264Codec !== h264HighCodec))
selectedCodecs.push(h264Codec);
if (selectedCodecs.length === 0)
return;
if (this.renderstreaming) {
const transceivers = this.renderstreaming.getTransceivers(participantId);
if (transceivers && transceivers.length > 0) {
const videoTransceivers = transceivers.filter(t => {
if (t.sender && t.sender.track) {
return t.sender.track.kind === 'video';
}
return t.mid !== null && t.receiver && t.receiver.track && t.receiver.track.kind === 'video';
});
if (videoTransceivers && videoTransceivers.length > 0) {
videoTransceivers.forEach(t => {
try {
t.setCodecPreferences(selectedCodecs);
}
catch (e) {
logger.error('Error setting codec preferences:', e);
}
});
logger.debug(`Codec preferences set: ${selectedCodecs.map(c => c.mimeType).join(' > ')}`);
}
}
}
}
setVideoEncodingParameters(participantId) {
if (!this.renderstreaming)
return;
const transceivers = this.renderstreaming.getTransceivers(participantId);
if (!transceivers || transceivers.length === 0)
return;
const videoTransceivers = transceivers.filter(t => t.sender && t.sender.track && t.sender.track.kind === 'video');
for (const transceiver of videoTransceivers) {
try {
const sender = transceiver.sender;
const params = sender.getParameters();
if (!params.encodings || params.encodings.length === 0) {
params.encodings = [{}];
}
const videoTrack = sender.track;
const settings = videoTrack ? videoTrack.getSettings() : {};
const height = settings.height || 1080;
const maxBitrate = getAdaptiveVideoBitrate(height);
params.encodings[0].maxBitrate = maxBitrate;
params.encodings[0].scaleResolutionDownBy = 1.0;
params.encodings[0].xGoogleMinBitrate = Math.floor(maxBitrate * 0.5);
if (params.degradationPreference !== undefined) {
params.degradationPreference = 'maintain-resolution';
}
sender.setParameters(params);
logger.debug(`Set video encoding: maxBitrate=${maxBitrate / 1000000}Mbps, scaleResolutionDownBy=1.0, xGoogleMinBitrate=${Math.floor(maxBitrate * 0.5)}${participantId ? ` for ${participantId}` : ''}`);
}
catch (error) {
logger.error('Error setting video encoding parameters:', error);
}
}
}
async changeResolution(width, height) {
if (!this.state.localStream) {
showNotification('本地视频流不可用', 'error');
return;
}
const videoTracks = this.state.localStream.getVideoTracks();
if (videoTracks.length === 0) {
showNotification('视频轨道不可用', 'error');
return;
}
const track = videoTracks[0];
const label = getResolutionLabel(height);
try {
await track.applyConstraints({
width: { ideal: width, max: width },
height: { ideal: height, max: height },
frameRate: { ideal: 30, max: 30 }
});
logger.debug(`分辨率已切换为 ${width}x${height}`);
const maxBitrate = getTargetResolutionBitrate(height);
this._applyMaxBitrate(maxBitrate);
const userSettings = JSON.parse(localStorage.getItem('userSettings') || '{}');
userSettings.resolution = { width, height };
localStorage.setItem('userSettings', JSON.stringify(userSettings));
this.notify({ type: 'RESOLUTION_CHANGED', resolution: { width, height, label } });
showNotification('已切换为 ' + label, 'success');
}
catch (error) {
logger.error('切换分辨率失败:', error);
showNotification('切换分辨率失败,摄像头可能不支持该分辨率', 'error');
}
}
_applyMaxBitrate(maxBitrate) {
if (!this.renderstreaming)
return;
const isHost = this.role === 'host';
const participantIds = isHost ? Object.keys(this.state.participants) : [null];
for (const pid of participantIds) {
const transceivers = this.renderstreaming.getTransceivers(pid);
if (!transceivers)
continue;
const videoTransceivers = transceivers.filter(t => t.sender && t.sender.track && t.sender.track.kind === 'video');
for (const transceiver of videoTransceivers) {
try {
const sender = transceiver.sender;
const params = sender.getParameters();
if (!params.encodings || params.encodings.length === 0) {
params.encodings = [{}];
}
params.encodings[0].maxBitrate = maxBitrate;
sender.setParameters(params);
logger.debug(`Updated maxBitrate to ${maxBitrate} for ${pid || 'self'}`);
}
catch (error) {
logger.error('Error updating maxBitrate:', error);
}
}
}
}
updateRemoteMedia(mediaState, participantId) {
this._setRemoteUserMediaState(mediaState);
this._notifyRemoteUserChange({ mediaState, participantId });
}
updateRemoteUserStatus(status) {
this._setRemoteUserState({ status });
this._notifyRemoteUserChange();
}
updateRemoteUserNetworkQuality(networkQuality) {
this._setRemoteUserState({ networkQuality });
this._notifyRemoteUserChange();
}
_setSpeakingState(isLocal, isSpeaking) {
if (isLocal) {
this.state.session.localUser.mediaState.isSpeaking = isSpeaking;
this._notifyLocalMediaChange('isSpeaking', isSpeaking);
this.emitMediaStateChange();
return;
}
this.updateRemoteMedia({ isSpeaking });
}
async endCall() {
logger.debug(`endCall called. Role: ${this.role}`);
await this.hangUp();
}
async joinCall(connectionId) {
this.state.session.status = 'connecting';
this.notify({ type: 'CALL_STATUS_CHANGE', status: 'connecting' });
showNotification('正在加入通话 (' + connectionId + ')');
await this.init();
this.connectionId = connectionId;
}
async createCall() {
this.state.session.status = 'connecting';
this.notify({ type: 'CALL_STATUS_CHANGE', status: 'connecting' });
showNotification('正在创建通话...');
await this.init();
}
async detectNetworkQuality() {
if (!this.renderstreaming) {
return;
}
try {
const stats = await this.renderstreaming.getStats();
if (!stats) {
return;
}
const summary = summarizeInboundStats(stats);
const quality = getNetworkQualityFromSummary(summary);
if (this.state.session.remoteUser.networkQuality !== quality) {
this.updateRemoteUserNetworkQuality(quality);
this.notify({ type: 'NETWORK_CHANGE', quality });
}
}
catch (error) {
logger.error('Error detecting network quality:', error);
}
}
startActivityDetection(stream, { isLocal = false } = {}) {
if (!stream) {
return;
}
const audioTracks = stream.getAudioTracks();
if (audioTracks.length === 0) {
return;
}
try {
const { threshold, debounceTime, fftSize } = VAD_CONFIG;
const { analyser, dataArray } = createAudioAnalyser(stream, fftSize);
let isSpeaking = false;
let lastActivityTime = 0;
const detectActivity = () => {
if (!stream || !this.renderstreaming) {
return;
}
const level = getAudioLevel(analyser, dataArray);
const currentTime = Date.now();
if (level > threshold / 100) {
lastActivityTime = currentTime;
if (!isSpeaking) {
isSpeaking = true;
this._setSpeakingState(isLocal, true);
}
}
else if (isSpeaking && currentTime - lastActivityTime > debounceTime) {
isSpeaking = false;
this._setSpeakingState(isLocal, false);
}
if (this.state.session.status === 'ongoing') {
requestAnimationFrame(detectActivity);
}
};
detectActivity();
logger.debug(`${isLocal ? 'Local' : 'Remote'} activity detection started`);
}
catch (error) {
logger.error(`Error starting ${isLocal ? 'local' : 'remote'} activity detection:`, error);
}
}
startNetworkQualityDetection() {
this.networkQualityInterval = setInterval(() => {
this.detectNetworkQuality();
}, 3000);
}
stopNetworkQualityDetection() {
if (this.networkQualityInterval) {
clearInterval(this.networkQualityInterval);
this.networkQualityInterval = null;
}
}
emitMediaStateChange() {
const payload = {
userId: this.state.session.localUser.id,
...this.state.session.localUser.mediaState
};
logger.debug('[WebSocket Emit] media-state-changed:', payload);
if (this.renderstreaming) {
this.renderstreaming.sendMessage({
type: 'media-state-changed',
data: payload
});
}
}
async showStatsMessage() {
logger.debug('Showing stats message');
await this.detectNetworkQuality();
this.statsInterval = setInterval(async () => {
if (!this.renderstreaming) {
return;
}
try {
const stats = await this.renderstreaming.getStats();
if (!stats) {
return;
}
const statsSummary = summarizeInboundStats(stats);
const statsLog = buildStatsLogPayload(this.state.session.remoteUser.networkQuality, statsSummary);
logger.debug('=== WebRTC Statistics ===');
logger.debug(`Network Quality: ${statsLog.networkQuality}`);
logger.debug('Video Stats:', statsLog.video);
logger.debug('Audio Stats:', statsLog.audio);
logger.debug('========================');
}
catch (error) {
logger.error('Error showing stats message:', error);
}
}, 5000);
}
clearStatsMessage() {
logger.debug('Clearing stats message');
if (this.statsInterval) {
clearInterval(this.statsInterval);
this.statsInterval = null;
}
}
getState() { return this.state; }
getLocalUser() { return this.state.session.localUser; }
getRemoteUser() { return this.state.session.remoteUser; }
getConnectionId() { return this.connectionId; }
getRenderStreaming() { return this.renderstreaming; }
}
const store = new CallStateManager();
window.addEventListener('beforeunload', async () => {
if (!store.renderstreaming)
return;
await store.renderstreaming.stop();
}, true);
export default store;