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-rw-r--r--server/lib/live/live-manager.ts412
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diff --git a/server/lib/live/live-manager.ts b/server/lib/live/live-manager.ts
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1
2import { createServer, Server } from 'net'
3import { isTestInstance } from '@server/helpers/core-utils'
4import { computeResolutionsToTranscode, getVideoFileFPS, getVideoFileResolution } from '@server/helpers/ffprobe-utils'
5import { logger, loggerTagsFactory } from '@server/helpers/logger'
6import { CONFIG, registerConfigChangedHandler } from '@server/initializers/config'
7import { P2P_MEDIA_LOADER_PEER_VERSION, VIDEO_LIVE, VIEW_LIFETIME, WEBSERVER } from '@server/initializers/constants'
8import { UserModel } from '@server/models/user/user'
9import { VideoModel } from '@server/models/video/video'
10import { VideoLiveModel } from '@server/models/video/video-live'
11import { VideoStreamingPlaylistModel } from '@server/models/video/video-streaming-playlist'
12import { MStreamingPlaylist, MStreamingPlaylistVideo, MVideo, MVideoLiveVideo } from '@server/types/models'
13import { VideoState, VideoStreamingPlaylistType } from '@shared/models'
14import { federateVideoIfNeeded } from '../activitypub/videos'
15import { JobQueue } from '../job-queue'
16import { PeerTubeSocket } from '../peertube-socket'
17import { LiveQuotaStore } from './live-quota-store'
18import { LiveSegmentShaStore } from './live-segment-sha-store'
19import { cleanupLive } from './live-utils'
20import { MuxingSession } from './shared'
21
22const NodeRtmpSession = require('node-media-server/node_rtmp_session')
23const context = require('node-media-server/node_core_ctx')
24const nodeMediaServerLogger = require('node-media-server/node_core_logger')
25
26// Disable node media server logs
27nodeMediaServerLogger.setLogType(0)
28
29const config = {
30 rtmp: {
31 port: CONFIG.LIVE.RTMP.PORT,
32 chunk_size: VIDEO_LIVE.RTMP.CHUNK_SIZE,
33 gop_cache: VIDEO_LIVE.RTMP.GOP_CACHE,
34 ping: VIDEO_LIVE.RTMP.PING,
35 ping_timeout: VIDEO_LIVE.RTMP.PING_TIMEOUT
36 },
37 transcoding: {
38 ffmpeg: 'ffmpeg'
39 }
40}
41
42const lTags = loggerTagsFactory('live')
43
44class LiveManager {
45
46 private static instance: LiveManager
47
48 private readonly muxingSessions = new Map<string, MuxingSession>()
49 private readonly videoSessions = new Map<number, string>()
50 // Values are Date().getTime()
51 private readonly watchersPerVideo = new Map<number, number[]>()
52
53 private rtmpServer: Server
54
55 private constructor () {
56 }
57
58 init () {
59 const events = this.getContext().nodeEvent
60 events.on('postPublish', (sessionId: string, streamPath: string) => {
61 logger.debug('RTMP received stream', { id: sessionId, streamPath, ...lTags(sessionId) })
62
63 const splittedPath = streamPath.split('/')
64 if (splittedPath.length !== 3 || splittedPath[1] !== VIDEO_LIVE.RTMP.BASE_PATH) {
65 logger.warn('Live path is incorrect.', { streamPath, ...lTags(sessionId) })
66 return this.abortSession(sessionId)
67 }
68
69 this.handleSession(sessionId, streamPath, splittedPath[2])
70 .catch(err => logger.error('Cannot handle sessions.', { err, ...lTags(sessionId) }))
71 })
72
73 events.on('donePublish', sessionId => {
74 logger.info('Live session ended.', { sessionId, ...lTags(sessionId) })
75 })
76
77 registerConfigChangedHandler(() => {
78 if (!this.rtmpServer && CONFIG.LIVE.ENABLED === true) {
79 this.run()
80 return
81 }
82
83 if (this.rtmpServer && CONFIG.LIVE.ENABLED === false) {
84 this.stop()
85 }
86 })
87
88 // Cleanup broken lives, that were terminated by a server restart for example
89 this.handleBrokenLives()
90 .catch(err => logger.error('Cannot handle broken lives.', { err, ...lTags() }))
91
92 setInterval(() => this.updateLiveViews(), VIEW_LIFETIME.LIVE)
93 }
94
95 run () {
96 logger.info('Running RTMP server on port %d', config.rtmp.port, lTags())
97
98 this.rtmpServer = createServer(socket => {
99 const session = new NodeRtmpSession(config, socket)
100
101 session.run()
102 })
103
104 this.rtmpServer.on('error', err => {
105 logger.error('Cannot run RTMP server.', { err, ...lTags() })
106 })
107
108 this.rtmpServer.listen(CONFIG.LIVE.RTMP.PORT)
109 }
110
111 stop () {
112 logger.info('Stopping RTMP server.', lTags())
113
114 this.rtmpServer.close()
115 this.rtmpServer = undefined
116
117 // Sessions is an object
118 this.getContext().sessions.forEach((session: any) => {
119 if (session instanceof NodeRtmpSession) {
120 session.stop()
121 }
122 })
123 }
124
125 isRunning () {
126 return !!this.rtmpServer
127 }
128
129 stopSessionOf (videoId: number) {
130 const sessionId = this.videoSessions.get(videoId)
131 if (!sessionId) return
132
133 this.videoSessions.delete(videoId)
134 this.abortSession(sessionId)
135 }
136
137 addViewTo (videoId: number) {
138 if (this.videoSessions.has(videoId) === false) return
139
140 let watchers = this.watchersPerVideo.get(videoId)
141
142 if (!watchers) {
143 watchers = []
144 this.watchersPerVideo.set(videoId, watchers)
145 }
146
147 watchers.push(new Date().getTime())
148 }
149
150 private getContext () {
151 return context
152 }
153
154 private abortSession (sessionId: string) {
155 const session = this.getContext().sessions.get(sessionId)
156 if (session) {
157 session.stop()
158 this.getContext().sessions.delete(sessionId)
159 }
160
161 const muxingSession = this.muxingSessions.get(sessionId)
162 if (muxingSession) muxingSession.abort()
163 }
164
165 private async handleSession (sessionId: string, streamPath: string, streamKey: string) {
166 const videoLive = await VideoLiveModel.loadByStreamKey(streamKey)
167 if (!videoLive) {
168 logger.warn('Unknown live video with stream key %s.', streamKey, lTags(sessionId))
169 return this.abortSession(sessionId)
170 }
171
172 const video = videoLive.Video
173 if (video.isBlacklisted()) {
174 logger.warn('Video is blacklisted. Refusing stream %s.', streamKey, lTags(sessionId, video.uuid))
175 return this.abortSession(sessionId)
176 }
177
178 // Cleanup old potential live files (could happen with a permanent live)
179 LiveSegmentShaStore.Instance.cleanupShaSegments(video.uuid)
180
181 const oldStreamingPlaylist = await VideoStreamingPlaylistModel.loadHLSPlaylistByVideo(video.id)
182 if (oldStreamingPlaylist) {
183 await cleanupLive(video, oldStreamingPlaylist)
184 }
185
186 this.videoSessions.set(video.id, sessionId)
187
188 const rtmpUrl = 'rtmp://127.0.0.1:' + config.rtmp.port + streamPath
189
190 const [ { videoFileResolution }, fps ] = await Promise.all([
191 getVideoFileResolution(rtmpUrl),
192 getVideoFileFPS(rtmpUrl)
193 ])
194
195 const allResolutions = this.buildAllResolutionsToTranscode(videoFileResolution)
196
197 logger.info(
198 'Will mux/transcode live video of original resolution %d.', videoFileResolution,
199 { allResolutions, ...lTags(sessionId, video.uuid) }
200 )
201
202 const streamingPlaylist = await this.createLivePlaylist(video, allResolutions)
203
204 return this.runMuxingSession({
205 sessionId,
206 videoLive,
207 streamingPlaylist,
208 rtmpUrl,
209 fps,
210 allResolutions
211 })
212 }
213
214 private async runMuxingSession (options: {
215 sessionId: string
216 videoLive: MVideoLiveVideo
217 streamingPlaylist: MStreamingPlaylistVideo
218 rtmpUrl: string
219 fps: number
220 allResolutions: number[]
221 }) {
222 const { sessionId, videoLive, streamingPlaylist, allResolutions, fps, rtmpUrl } = options
223 const videoUUID = videoLive.Video.uuid
224 const localLTags = lTags(sessionId, videoUUID)
225
226 const user = await UserModel.loadByLiveId(videoLive.id)
227 LiveQuotaStore.Instance.addNewLive(user.id, videoLive.id)
228
229 const muxingSession = new MuxingSession({
230 context: this.getContext(),
231 user,
232 sessionId,
233 videoLive,
234 streamingPlaylist,
235 rtmpUrl,
236 fps,
237 allResolutions
238 })
239
240 muxingSession.on('master-playlist-created', () => this.publishAndFederateLive(videoLive, localLTags))
241
242 muxingSession.on('bad-socket-health', ({ videoId }) => {
243 logger.error(
244 'Too much data in client socket stream (ffmpeg is too slow to transcode the video).' +
245 ' Stopping session of video %s.', videoUUID,
246 localLTags
247 )
248
249 this.stopSessionOf(videoId)
250 })
251
252 muxingSession.on('duration-exceeded', ({ videoId }) => {
253 logger.info('Stopping session of %s: max duration exceeded.', videoUUID, localLTags)
254
255 this.stopSessionOf(videoId)
256 })
257
258 muxingSession.on('quota-exceeded', ({ videoId }) => {
259 logger.info('Stopping session of %s: user quota exceeded.', videoUUID, localLTags)
260
261 this.stopSessionOf(videoId)
262 })
263
264 muxingSession.on('ffmpeg-error', ({ sessionId }) => this.abortSession(sessionId))
265 muxingSession.on('ffmpeg-end', ({ videoId }) => {
266 this.onMuxingFFmpegEnd(videoId)
267 })
268
269 muxingSession.on('after-cleanup', ({ videoId }) => {
270 this.muxingSessions.delete(sessionId)
271
272 return this.onAfterMuxingCleanup(videoId)
273 .catch(err => logger.error('Error in end transmuxing.', { err, ...localLTags }))
274 })
275
276 this.muxingSessions.set(sessionId, muxingSession)
277
278 muxingSession.runMuxing()
279 .catch(err => {
280 logger.error('Cannot run muxing.', { err, ...localLTags })
281 this.abortSession(sessionId)
282 })
283 }
284
285 private async publishAndFederateLive (live: MVideoLiveVideo, localLTags: { tags: string[] }) {
286 const videoId = live.videoId
287
288 try {
289 const video = await VideoModel.loadAndPopulateAccountAndServerAndTags(videoId)
290
291 logger.info('Will publish and federate live %s.', video.url, localLTags)
292
293 video.state = VideoState.PUBLISHED
294 await video.save()
295
296 live.Video = video
297
298 setTimeout(() => {
299 federateVideoIfNeeded(video, false)
300 .catch(err => logger.error('Cannot federate live video %s.', video.url, { err, ...localLTags }))
301
302 PeerTubeSocket.Instance.sendVideoLiveNewState(video)
303 }, VIDEO_LIVE.SEGMENT_TIME_SECONDS * 1000 * VIDEO_LIVE.EDGE_LIVE_DELAY_SEGMENTS_NOTIFICATION)
304 } catch (err) {
305 logger.error('Cannot save/federate live video %d.', videoId, { err, ...localLTags })
306 }
307 }
308
309 private onMuxingFFmpegEnd (videoId: number) {
310 this.watchersPerVideo.delete(videoId)
311 this.videoSessions.delete(videoId)
312 }
313
314 private async onAfterMuxingCleanup (videoUUID: string, cleanupNow = false) {
315 try {
316 const fullVideo = await VideoModel.loadAndPopulateAccountAndServerAndTags(videoUUID)
317 if (!fullVideo) return
318
319 const live = await VideoLiveModel.loadByVideoId(fullVideo.id)
320
321 if (!live.permanentLive) {
322 JobQueue.Instance.createJob({
323 type: 'video-live-ending',
324 payload: {
325 videoId: fullVideo.id
326 }
327 }, { delay: cleanupNow ? 0 : VIDEO_LIVE.CLEANUP_DELAY })
328
329 fullVideo.state = VideoState.LIVE_ENDED
330 } else {
331 fullVideo.state = VideoState.WAITING_FOR_LIVE
332 }
333
334 await fullVideo.save()
335
336 PeerTubeSocket.Instance.sendVideoLiveNewState(fullVideo)
337
338 await federateVideoIfNeeded(fullVideo, false)
339 } catch (err) {
340 logger.error('Cannot save/federate new video state of live streaming of video %d.', videoUUID, { err, ...lTags(videoUUID) })
341 }
342 }
343
344 private async updateLiveViews () {
345 if (!this.isRunning()) return
346
347 if (!isTestInstance()) logger.info('Updating live video views.', lTags())
348
349 for (const videoId of this.watchersPerVideo.keys()) {
350 const notBefore = new Date().getTime() - VIEW_LIFETIME.LIVE
351
352 const watchers = this.watchersPerVideo.get(videoId)
353
354 const numWatchers = watchers.length
355
356 const video = await VideoModel.loadAndPopulateAccountAndServerAndTags(videoId)
357 video.views = numWatchers
358 await video.save()
359
360 await federateVideoIfNeeded(video, false)
361
362 PeerTubeSocket.Instance.sendVideoViewsUpdate(video)
363
364 // Only keep not expired watchers
365 const newWatchers = watchers.filter(w => w > notBefore)
366 this.watchersPerVideo.set(videoId, newWatchers)
367
368 logger.debug('New live video views for %s is %d.', video.url, numWatchers, lTags())
369 }
370 }
371
372 private async handleBrokenLives () {
373 const videoUUIDs = await VideoModel.listPublishedLiveUUIDs()
374
375 for (const uuid of videoUUIDs) {
376 await this.onAfterMuxingCleanup(uuid, true)
377 }
378 }
379
380 private buildAllResolutionsToTranscode (originResolution: number) {
381 const resolutionsEnabled = CONFIG.LIVE.TRANSCODING.ENABLED
382 ? computeResolutionsToTranscode(originResolution, 'live')
383 : []
384
385 return resolutionsEnabled.concat([ originResolution ])
386 }
387
388 private async createLivePlaylist (video: MVideo, allResolutions: number[]) {
389 const playlistUrl = WEBSERVER.URL + VideoStreamingPlaylistModel.getHlsMasterPlaylistStaticPath(video.uuid)
390 const [ videoStreamingPlaylist ] = await VideoStreamingPlaylistModel.upsert({
391 videoId: video.id,
392 playlistUrl,
393 segmentsSha256Url: WEBSERVER.URL + VideoStreamingPlaylistModel.getHlsSha256SegmentsStaticPath(video.uuid, video.isLive),
394 p2pMediaLoaderInfohashes: VideoStreamingPlaylistModel.buildP2PMediaLoaderInfoHashes(playlistUrl, allResolutions),
395 p2pMediaLoaderPeerVersion: P2P_MEDIA_LOADER_PEER_VERSION,
396
397 type: VideoStreamingPlaylistType.HLS
398 }, { returning: true }) as [ MStreamingPlaylist, boolean ]
399
400 return Object.assign(videoStreamingPlaylist, { Video: video })
401 }
402
403 static get Instance () {
404 return this.instance || (this.instance = new this())
405 }
406}
407
408// ---------------------------------------------------------------------------
409
410export {
411 LiveManager
412}