502 lines
16 KiB
TypeScript
502 lines
16 KiB
TypeScript
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import { readdir, readFile } from 'fs-extra'
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import { createServer, Server } from 'net'
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import { join } from 'path'
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import { createServer as createServerTLS, Server as ServerTLS } from 'tls'
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import {
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computeLowerResolutionsToTranscode,
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ffprobePromise,
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getLiveSegmentTime,
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getVideoStreamBitrate,
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getVideoStreamDimensionsInfo,
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getVideoStreamFPS
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} from '@server/helpers/ffmpeg'
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import { logger, loggerTagsFactory } from '@server/helpers/logger'
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import { CONFIG, registerConfigChangedHandler } from '@server/initializers/config'
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import { P2P_MEDIA_LOADER_PEER_VERSION, VIDEO_LIVE } from '@server/initializers/constants'
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import { UserModel } from '@server/models/user/user'
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import { VideoModel } from '@server/models/video/video'
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import { VideoLiveModel } from '@server/models/video/video-live'
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import { VideoLiveSessionModel } from '@server/models/video/video-live-session'
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import { VideoStreamingPlaylistModel } from '@server/models/video/video-streaming-playlist'
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import { MStreamingPlaylistVideo, MVideo, MVideoLiveSession, MVideoLiveVideo } from '@server/types/models'
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import { wait } from '@shared/core-utils'
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import { LiveVideoError, VideoState, VideoStreamingPlaylistType } from '@shared/models'
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import { federateVideoIfNeeded } from '../activitypub/videos'
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import { JobQueue } from '../job-queue'
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import { generateHLSMasterPlaylistFilename, generateHlsSha256SegmentsFilename, getLiveReplayBaseDirectory } from '../paths'
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import { PeerTubeSocket } from '../peertube-socket'
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import { LiveQuotaStore } from './live-quota-store'
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import { LiveSegmentShaStore } from './live-segment-sha-store'
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import { cleanupLive } from './live-utils'
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import { MuxingSession } from './shared'
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const NodeRtmpSession = require('node-media-server/src/node_rtmp_session')
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const context = require('node-media-server/src/node_core_ctx')
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const nodeMediaServerLogger = require('node-media-server/src/node_core_logger')
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// Disable node media server logs
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nodeMediaServerLogger.setLogType(0)
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const config = {
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rtmp: {
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port: CONFIG.LIVE.RTMP.PORT,
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chunk_size: VIDEO_LIVE.RTMP.CHUNK_SIZE,
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gop_cache: VIDEO_LIVE.RTMP.GOP_CACHE,
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ping: VIDEO_LIVE.RTMP.PING,
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ping_timeout: VIDEO_LIVE.RTMP.PING_TIMEOUT
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}
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}
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const lTags = loggerTagsFactory('live')
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class LiveManager {
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private static instance: LiveManager
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private readonly muxingSessions = new Map<string, MuxingSession>()
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private readonly videoSessions = new Map<number, string>()
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private rtmpServer: Server
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private rtmpsServer: ServerTLS
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private running = false
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private constructor () {
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}
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init () {
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const events = this.getContext().nodeEvent
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events.on('postPublish', (sessionId: string, streamPath: string) => {
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logger.debug('RTMP received stream', { id: sessionId, streamPath, ...lTags(sessionId) })
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const splittedPath = streamPath.split('/')
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if (splittedPath.length !== 3 || splittedPath[1] !== VIDEO_LIVE.RTMP.BASE_PATH) {
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logger.warn('Live path is incorrect.', { streamPath, ...lTags(sessionId) })
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return this.abortSession(sessionId)
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}
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const session = this.getContext().sessions.get(sessionId)
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this.handleSession(sessionId, session.inputOriginUrl + streamPath, splittedPath[2])
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.catch(err => logger.error('Cannot handle sessions.', { err, ...lTags(sessionId) }))
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})
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events.on('donePublish', sessionId => {
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logger.info('Live session ended.', { sessionId, ...lTags(sessionId) })
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})
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registerConfigChangedHandler(() => {
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if (!this.running && CONFIG.LIVE.ENABLED === true) {
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this.run().catch(err => logger.error('Cannot run live server.', { err }))
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return
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}
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if (this.running && CONFIG.LIVE.ENABLED === false) {
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this.stop()
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}
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})
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// Cleanup broken lives, that were terminated by a server restart for example
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this.handleBrokenLives()
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.catch(err => logger.error('Cannot handle broken lives.', { err, ...lTags() }))
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}
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async run () {
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this.running = true
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if (CONFIG.LIVE.RTMP.ENABLED) {
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logger.info('Running RTMP server on port %d', CONFIG.LIVE.RTMP.PORT, lTags())
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this.rtmpServer = createServer(socket => {
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const session = new NodeRtmpSession(config, socket)
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session.inputOriginUrl = 'rtmp://127.0.0.1:' + CONFIG.LIVE.RTMP.PORT
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session.run()
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})
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this.rtmpServer.on('error', err => {
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logger.error('Cannot run RTMP server.', { err, ...lTags() })
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})
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this.rtmpServer.listen(CONFIG.LIVE.RTMP.PORT, CONFIG.LIVE.RTMP.HOSTNAME)
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}
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if (CONFIG.LIVE.RTMPS.ENABLED) {
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logger.info('Running RTMPS server on port %d', CONFIG.LIVE.RTMPS.PORT, lTags())
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const [ key, cert ] = await Promise.all([
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readFile(CONFIG.LIVE.RTMPS.KEY_FILE),
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readFile(CONFIG.LIVE.RTMPS.CERT_FILE)
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])
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const serverOptions = { key, cert }
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this.rtmpsServer = createServerTLS(serverOptions, socket => {
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const session = new NodeRtmpSession(config, socket)
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session.inputOriginUrl = 'rtmps://127.0.0.1:' + CONFIG.LIVE.RTMPS.PORT
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session.run()
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})
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this.rtmpsServer.on('error', err => {
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logger.error('Cannot run RTMPS server.', { err, ...lTags() })
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})
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this.rtmpsServer.listen(CONFIG.LIVE.RTMPS.PORT, CONFIG.LIVE.RTMPS.HOSTNAME)
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}
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}
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stop () {
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this.running = false
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if (this.rtmpServer) {
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logger.info('Stopping RTMP server.', lTags())
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this.rtmpServer.close()
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this.rtmpServer = undefined
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}
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if (this.rtmpsServer) {
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logger.info('Stopping RTMPS server.', lTags())
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this.rtmpsServer.close()
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this.rtmpsServer = undefined
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}
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// Sessions is an object
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this.getContext().sessions.forEach((session: any) => {
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if (session instanceof NodeRtmpSession) {
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session.stop()
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}
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})
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}
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isRunning () {
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return !!this.rtmpServer
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}
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stopSessionOf (videoId: number, error: LiveVideoError | null) {
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const sessionId = this.videoSessions.get(videoId)
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if (!sessionId) return
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this.saveEndingSession(videoId, error)
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.catch(err => logger.error('Cannot save ending session.', { err, ...lTags(sessionId) }))
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this.videoSessions.delete(videoId)
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this.abortSession(sessionId)
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}
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private getContext () {
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return context
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}
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private abortSession (sessionId: string) {
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const session = this.getContext().sessions.get(sessionId)
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if (session) {
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session.stop()
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this.getContext().sessions.delete(sessionId)
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}
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const muxingSession = this.muxingSessions.get(sessionId)
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if (muxingSession) {
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// Muxing session will fire and event so we correctly cleanup the session
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muxingSession.abort()
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this.muxingSessions.delete(sessionId)
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}
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}
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private async handleSession (sessionId: string, inputUrl: string, streamKey: string) {
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const videoLive = await VideoLiveModel.loadByStreamKey(streamKey)
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if (!videoLive) {
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logger.warn('Unknown live video with stream key %s.', streamKey, lTags(sessionId))
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return this.abortSession(sessionId)
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}
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const video = videoLive.Video
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if (video.isBlacklisted()) {
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logger.warn('Video is blacklisted. Refusing stream %s.', streamKey, lTags(sessionId, video.uuid))
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return this.abortSession(sessionId)
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}
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// Cleanup old potential live files (could happen with a permanent live)
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LiveSegmentShaStore.Instance.cleanupShaSegments(video.uuid)
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const oldStreamingPlaylist = await VideoStreamingPlaylistModel.loadHLSPlaylistByVideo(video.id)
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if (oldStreamingPlaylist) {
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await cleanupLive(video, oldStreamingPlaylist)
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}
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this.videoSessions.set(video.id, sessionId)
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const now = Date.now()
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const probe = await ffprobePromise(inputUrl)
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const [ { resolution, ratio }, fps, bitrate ] = await Promise.all([
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getVideoStreamDimensionsInfo(inputUrl, probe),
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getVideoStreamFPS(inputUrl, probe),
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getVideoStreamBitrate(inputUrl, probe)
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])
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logger.info(
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'%s probing took %d ms (bitrate: %d, fps: %d, resolution: %d)',
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inputUrl, Date.now() - now, bitrate, fps, resolution, lTags(sessionId, video.uuid)
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)
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const allResolutions = this.buildAllResolutionsToTranscode(resolution)
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logger.info(
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'Will mux/transcode live video of original resolution %d.', resolution,
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{ allResolutions, ...lTags(sessionId, video.uuid) }
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)
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const streamingPlaylist = await this.createLivePlaylist(video, allResolutions)
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return this.runMuxingSession({
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sessionId,
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videoLive,
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streamingPlaylist,
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inputUrl,
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fps,
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bitrate,
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ratio,
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allResolutions
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})
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}
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private async runMuxingSession (options: {
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sessionId: string
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videoLive: MVideoLiveVideo
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streamingPlaylist: MStreamingPlaylistVideo
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inputUrl: string
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fps: number
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bitrate: number
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ratio: number
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allResolutions: number[]
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}) {
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const { sessionId, videoLive, streamingPlaylist, allResolutions, fps, bitrate, ratio, inputUrl } = options
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const videoUUID = videoLive.Video.uuid
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const localLTags = lTags(sessionId, videoUUID)
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const liveSession = await this.saveStartingSession(videoLive)
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const user = await UserModel.loadByLiveId(videoLive.id)
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LiveQuotaStore.Instance.addNewLive(user.id, videoLive.id)
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const muxingSession = new MuxingSession({
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context: this.getContext(),
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user,
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sessionId,
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videoLive,
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streamingPlaylist,
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inputUrl,
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bitrate,
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ratio,
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fps,
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allResolutions
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})
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muxingSession.on('master-playlist-created', () => this.publishAndFederateLive(videoLive, localLTags))
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muxingSession.on('bad-socket-health', ({ videoId }) => {
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logger.error(
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'Too much data in client socket stream (ffmpeg is too slow to transcode the video).' +
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' Stopping session of video %s.', videoUUID,
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localLTags
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)
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this.stopSessionOf(videoId, LiveVideoError.BAD_SOCKET_HEALTH)
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})
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muxingSession.on('duration-exceeded', ({ videoId }) => {
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logger.info('Stopping session of %s: max duration exceeded.', videoUUID, localLTags)
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this.stopSessionOf(videoId, LiveVideoError.DURATION_EXCEEDED)
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})
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muxingSession.on('quota-exceeded', ({ videoId }) => {
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logger.info('Stopping session of %s: user quota exceeded.', videoUUID, localLTags)
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this.stopSessionOf(videoId, LiveVideoError.QUOTA_EXCEEDED)
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})
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muxingSession.on('ffmpeg-error', ({ videoId }) => {
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this.stopSessionOf(videoId, LiveVideoError.FFMPEG_ERROR)
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})
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muxingSession.on('ffmpeg-end', ({ videoId }) => {
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this.onMuxingFFmpegEnd(videoId, sessionId)
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})
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muxingSession.on('after-cleanup', ({ videoId }) => {
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this.muxingSessions.delete(sessionId)
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LiveQuotaStore.Instance.removeLive(user.id, videoLive.id)
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muxingSession.destroy()
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return this.onAfterMuxingCleanup({ videoId, liveSession })
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.catch(err => logger.error('Error in end transmuxing.', { err, ...localLTags }))
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})
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this.muxingSessions.set(sessionId, muxingSession)
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muxingSession.runMuxing()
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.catch(err => {
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logger.error('Cannot run muxing.', { err, ...localLTags })
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this.abortSession(sessionId)
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})
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}
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private async publishAndFederateLive (live: MVideoLiveVideo, localLTags: { tags: string[] }) {
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const videoId = live.videoId
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try {
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const video = await VideoModel.loadAndPopulateAccountAndServerAndTags(videoId)
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logger.info('Will publish and federate live %s.', video.url, localLTags)
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video.state = VideoState.PUBLISHED
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video.publishedAt = new Date()
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await video.save()
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live.Video = video
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await wait(getLiveSegmentTime(live.latencyMode) * 1000 * VIDEO_LIVE.EDGE_LIVE_DELAY_SEGMENTS_NOTIFICATION)
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try {
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await federateVideoIfNeeded(video, false)
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} catch (err) {
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logger.error('Cannot federate live video %s.', video.url, { err, ...localLTags })
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}
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PeerTubeSocket.Instance.sendVideoLiveNewState(video)
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} catch (err) {
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logger.error('Cannot save/federate live video %d.', videoId, { err, ...localLTags })
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}
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}
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private onMuxingFFmpegEnd (videoId: number, sessionId: string) {
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this.videoSessions.delete(videoId)
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this.saveEndingSession(videoId, null)
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.catch(err => logger.error('Cannot save ending session.', { err, ...lTags(sessionId) }))
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}
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private async onAfterMuxingCleanup (options: {
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videoId: number | string
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liveSession?: MVideoLiveSession
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cleanupNow?: boolean // Default false
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}) {
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const { videoId, liveSession: liveSessionArg, cleanupNow = false } = options
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try {
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const fullVideo = await VideoModel.loadAndPopulateAccountAndServerAndTags(videoId)
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if (!fullVideo) return
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const live = await VideoLiveModel.loadByVideoId(fullVideo.id)
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const liveSession = liveSessionArg ?? await VideoLiveSessionModel.findCurrentSessionOf(fullVideo.id)
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// On server restart during a live
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if (!liveSession.endDate) {
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liveSession.endDate = new Date()
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await liveSession.save()
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}
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JobQueue.Instance.createJob({
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type: 'video-live-ending',
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payload: {
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videoId: fullVideo.id,
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replayDirectory: live.saveReplay
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? await this.findReplayDirectory(fullVideo)
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: undefined,
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liveSessionId: liveSession.id,
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publishedAt: fullVideo.publishedAt.toISOString()
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}
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}, { delay: cleanupNow ? 0 : VIDEO_LIVE.CLEANUP_DELAY })
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fullVideo.state = live.permanentLive
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? VideoState.WAITING_FOR_LIVE
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: VideoState.LIVE_ENDED
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await fullVideo.save()
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PeerTubeSocket.Instance.sendVideoLiveNewState(fullVideo)
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await federateVideoIfNeeded(fullVideo, false)
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} catch (err) {
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logger.error('Cannot save/federate new video state of live streaming of video %d.', videoId, { err, ...lTags(videoId + '') })
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}
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}
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private async handleBrokenLives () {
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const videoUUIDs = await VideoModel.listPublishedLiveUUIDs()
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for (const uuid of videoUUIDs) {
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await this.onAfterMuxingCleanup({ videoId: uuid, cleanupNow: true })
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}
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}
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private async findReplayDirectory (video: MVideo) {
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const directory = getLiveReplayBaseDirectory(video)
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const files = await readdir(directory)
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if (files.length === 0) return undefined
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return join(directory, files.sort().reverse()[0])
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}
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private buildAllResolutionsToTranscode (originResolution: number) {
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const resolutionsEnabled = CONFIG.LIVE.TRANSCODING.ENABLED
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? computeLowerResolutionsToTranscode(originResolution, 'live')
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: []
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return resolutionsEnabled.concat([ originResolution ])
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}
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private async createLivePlaylist (video: MVideo, allResolutions: number[]): Promise<MStreamingPlaylistVideo> {
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const playlist = await VideoStreamingPlaylistModel.loadOrGenerate(video)
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playlist.playlistFilename = generateHLSMasterPlaylistFilename(true)
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playlist.segmentsSha256Filename = generateHlsSha256SegmentsFilename(true)
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playlist.p2pMediaLoaderPeerVersion = P2P_MEDIA_LOADER_PEER_VERSION
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playlist.type = VideoStreamingPlaylistType.HLS
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playlist.assignP2PMediaLoaderInfoHashes(video, allResolutions)
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return playlist.save()
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}
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private saveStartingSession (videoLive: MVideoLiveVideo) {
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const liveSession = new VideoLiveSessionModel({
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startDate: new Date(),
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liveVideoId: videoLive.videoId
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})
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return liveSession.save()
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}
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private async saveEndingSession (videoId: number, error: LiveVideoError | null) {
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const liveSession = await VideoLiveSessionModel.findCurrentSessionOf(videoId)
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liveSession.endDate = new Date()
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liveSession.error = error
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return liveSession.save()
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}
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static get Instance () {
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return this.instance || (this.instance = new this())
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}
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}
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// ---------------------------------------------------------------------------
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export {
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LiveManager
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}
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