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c6c0fa6c C |
1 | |
2 | import { AsyncQueue, queue } from 'async' | |
3 | import * as chokidar from 'chokidar' | |
4 | import { FfmpegCommand } from 'fluent-ffmpeg' | |
fb719404 | 5 | import { ensureDir, stat } from 'fs-extra' |
a5cf76af | 6 | import { basename } from 'path' |
053aed43 C |
7 | import { |
8 | computeResolutionsToTranscode, | |
9 | getVideoFileFPS, | |
10 | getVideoFileResolution, | |
11 | runLiveMuxing, | |
12 | runLiveTranscoding | |
13 | } from '@server/helpers/ffmpeg-utils' | |
c6c0fa6c C |
14 | import { logger } from '@server/helpers/logger' |
15 | import { CONFIG, registerConfigChangedHandler } from '@server/initializers/config' | |
fb719404 C |
16 | import { MEMOIZE_TTL, P2P_MEDIA_LOADER_PEER_VERSION, VIDEO_LIVE, WEBSERVER } from '@server/initializers/constants' |
17 | import { UserModel } from '@server/models/account/user' | |
a5cf76af | 18 | import { VideoModel } from '@server/models/video/video' |
c6c0fa6c C |
19 | import { VideoFileModel } from '@server/models/video/video-file' |
20 | import { VideoLiveModel } from '@server/models/video/video-live' | |
21 | import { VideoStreamingPlaylistModel } from '@server/models/video/video-streaming-playlist' | |
b5b68755 | 22 | import { MStreamingPlaylist, MUserId, MVideoLive, MVideoLiveVideo } from '@server/types/models' |
c6c0fa6c | 23 | import { VideoState, VideoStreamingPlaylistType } from '@shared/models' |
a5cf76af | 24 | import { federateVideoIfNeeded } from './activitypub/videos' |
c6c0fa6c | 25 | import { buildSha256Segment } from './hls' |
a5cf76af C |
26 | import { JobQueue } from './job-queue' |
27 | import { PeerTubeSocket } from './peertube-socket' | |
fb719404 | 28 | import { isAbleToUploadVideo } from './user' |
c6c0fa6c C |
29 | import { getHLSDirectory } from './video-paths' |
30 | ||
fb719404 | 31 | import memoizee = require('memoizee') |
c6c0fa6c C |
32 | const NodeRtmpServer = require('node-media-server/node_rtmp_server') |
33 | const context = require('node-media-server/node_core_ctx') | |
34 | const nodeMediaServerLogger = require('node-media-server/node_core_logger') | |
35 | ||
36 | // Disable node media server logs | |
37 | nodeMediaServerLogger.setLogType(0) | |
38 | ||
39 | const config = { | |
40 | rtmp: { | |
41 | port: CONFIG.LIVE.RTMP.PORT, | |
42 | chunk_size: VIDEO_LIVE.RTMP.CHUNK_SIZE, | |
43 | gop_cache: VIDEO_LIVE.RTMP.GOP_CACHE, | |
44 | ping: VIDEO_LIVE.RTMP.PING, | |
45 | ping_timeout: VIDEO_LIVE.RTMP.PING_TIMEOUT | |
46 | }, | |
47 | transcoding: { | |
48 | ffmpeg: 'ffmpeg' | |
49 | } | |
50 | } | |
51 | ||
52 | type SegmentSha256QueueParam = { | |
53 | operation: 'update' | 'delete' | |
54 | videoUUID: string | |
55 | segmentPath: string | |
56 | } | |
57 | ||
58 | class LiveManager { | |
59 | ||
60 | private static instance: LiveManager | |
61 | ||
62 | private readonly transSessions = new Map<string, FfmpegCommand>() | |
a5cf76af | 63 | private readonly videoSessions = new Map<number, string>() |
c6c0fa6c | 64 | private readonly segmentsSha256 = new Map<string, Map<string, string>>() |
fb719404 C |
65 | private readonly livesPerUser = new Map<number, { liveId: number, videoId: number, size: number }[]>() |
66 | ||
67 | private readonly isAbleToUploadVideoWithCache = memoizee((userId: number) => { | |
68 | return isAbleToUploadVideo(userId, 1000) | |
69 | }, { maxAge: MEMOIZE_TTL.LIVE_ABLE_TO_UPLOAD }) | |
c6c0fa6c C |
70 | |
71 | private segmentsSha256Queue: AsyncQueue<SegmentSha256QueueParam> | |
72 | private rtmpServer: any | |
73 | ||
74 | private constructor () { | |
75 | } | |
76 | ||
77 | init () { | |
a5cf76af C |
78 | const events = this.getContext().nodeEvent |
79 | events.on('postPublish', (sessionId: string, streamPath: string) => { | |
c6c0fa6c C |
80 | logger.debug('RTMP received stream', { id: sessionId, streamPath }) |
81 | ||
82 | const splittedPath = streamPath.split('/') | |
83 | if (splittedPath.length !== 3 || splittedPath[1] !== VIDEO_LIVE.RTMP.BASE_PATH) { | |
84 | logger.warn('Live path is incorrect.', { streamPath }) | |
85 | return this.abortSession(sessionId) | |
86 | } | |
87 | ||
88 | this.handleSession(sessionId, streamPath, splittedPath[2]) | |
89 | .catch(err => logger.error('Cannot handle sessions.', { err })) | |
90 | }) | |
91 | ||
a5cf76af | 92 | events.on('donePublish', sessionId => { |
284ef529 | 93 | logger.info('Live session ended.', { sessionId }) |
c6c0fa6c C |
94 | }) |
95 | ||
96 | this.segmentsSha256Queue = queue<SegmentSha256QueueParam, Error>((options, cb) => { | |
97 | const promise = options.operation === 'update' | |
98 | ? this.addSegmentSha(options) | |
99 | : Promise.resolve(this.removeSegmentSha(options)) | |
100 | ||
101 | promise.then(() => cb()) | |
102 | .catch(err => { | |
103 | logger.error('Cannot update/remove sha segment %s.', options.segmentPath, { err }) | |
104 | cb() | |
105 | }) | |
106 | }) | |
107 | ||
108 | registerConfigChangedHandler(() => { | |
109 | if (!this.rtmpServer && CONFIG.LIVE.ENABLED === true) { | |
110 | this.run() | |
111 | return | |
112 | } | |
113 | ||
114 | if (this.rtmpServer && CONFIG.LIVE.ENABLED === false) { | |
115 | this.stop() | |
116 | } | |
117 | }) | |
118 | } | |
119 | ||
120 | run () { | |
3cabf353 | 121 | logger.info('Running RTMP server on port %d', config.rtmp.port) |
c6c0fa6c C |
122 | |
123 | this.rtmpServer = new NodeRtmpServer(config) | |
124 | this.rtmpServer.run() | |
125 | } | |
126 | ||
127 | stop () { | |
128 | logger.info('Stopping RTMP server.') | |
129 | ||
130 | this.rtmpServer.stop() | |
131 | this.rtmpServer = undefined | |
132 | } | |
133 | ||
134 | getSegmentsSha256 (videoUUID: string) { | |
135 | return this.segmentsSha256.get(videoUUID) | |
136 | } | |
137 | ||
a5cf76af C |
138 | stopSessionOf (videoId: number) { |
139 | const sessionId = this.videoSessions.get(videoId) | |
140 | if (!sessionId) return | |
141 | ||
97969c4e | 142 | this.videoSessions.delete(videoId) |
a5cf76af | 143 | this.abortSession(sessionId) |
a5cf76af C |
144 | } |
145 | ||
68e70a74 C |
146 | getLiveQuotaUsedByUser (userId: number) { |
147 | const currentLives = this.livesPerUser.get(userId) | |
148 | if (!currentLives) return 0 | |
149 | ||
150 | return currentLives.reduce((sum, obj) => sum + obj.size, 0) | |
151 | } | |
152 | ||
c6c0fa6c C |
153 | private getContext () { |
154 | return context | |
155 | } | |
156 | ||
157 | private abortSession (id: string) { | |
158 | const session = this.getContext().sessions.get(id) | |
284ef529 C |
159 | if (session) { |
160 | session.stop() | |
161 | this.getContext().sessions.delete(id) | |
162 | } | |
c6c0fa6c C |
163 | |
164 | const transSession = this.transSessions.get(id) | |
284ef529 C |
165 | if (transSession) { |
166 | transSession.kill('SIGINT') | |
167 | this.transSessions.delete(id) | |
168 | } | |
c6c0fa6c C |
169 | } |
170 | ||
171 | private async handleSession (sessionId: string, streamPath: string, streamKey: string) { | |
172 | const videoLive = await VideoLiveModel.loadByStreamKey(streamKey) | |
173 | if (!videoLive) { | |
174 | logger.warn('Unknown live video with stream key %s.', streamKey) | |
175 | return this.abortSession(sessionId) | |
176 | } | |
177 | ||
178 | const video = videoLive.Video | |
a5cf76af C |
179 | if (video.isBlacklisted()) { |
180 | logger.warn('Video is blacklisted. Refusing stream %s.', streamKey) | |
181 | return this.abortSession(sessionId) | |
182 | } | |
183 | ||
184 | this.videoSessions.set(video.id, sessionId) | |
185 | ||
c6c0fa6c C |
186 | const playlistUrl = WEBSERVER.URL + VideoStreamingPlaylistModel.getHlsMasterPlaylistStaticPath(video.uuid) |
187 | ||
188 | const session = this.getContext().sessions.get(sessionId) | |
68e70a74 C |
189 | const rtmpUrl = 'rtmp://127.0.0.1:' + config.rtmp.port + streamPath |
190 | ||
191 | const [ resolutionResult, fps ] = await Promise.all([ | |
192 | getVideoFileResolution(rtmpUrl), | |
193 | getVideoFileFPS(rtmpUrl) | |
194 | ]) | |
195 | ||
c6c0fa6c | 196 | const resolutionsEnabled = CONFIG.LIVE.TRANSCODING.ENABLED |
68e70a74 | 197 | ? computeResolutionsToTranscode(resolutionResult.videoFileResolution, 'live') |
c6c0fa6c C |
198 | : [] |
199 | ||
200 | logger.info('Will mux/transcode live video of original resolution %d.', session.videoHeight, { resolutionsEnabled }) | |
201 | ||
202 | const [ videoStreamingPlaylist ] = await VideoStreamingPlaylistModel.upsert({ | |
203 | videoId: video.id, | |
204 | playlistUrl, | |
205 | segmentsSha256Url: WEBSERVER.URL + VideoStreamingPlaylistModel.getHlsSha256SegmentsStaticPath(video.uuid, video.isLive), | |
206 | p2pMediaLoaderInfohashes: VideoStreamingPlaylistModel.buildP2PMediaLoaderInfoHashes(playlistUrl, resolutionsEnabled), | |
207 | p2pMediaLoaderPeerVersion: P2P_MEDIA_LOADER_PEER_VERSION, | |
208 | ||
209 | type: VideoStreamingPlaylistType.HLS | |
210 | }, { returning: true }) as [ MStreamingPlaylist, boolean ] | |
211 | ||
c6c0fa6c C |
212 | return this.runMuxing({ |
213 | sessionId, | |
214 | videoLive, | |
215 | playlist: videoStreamingPlaylist, | |
c6c0fa6c | 216 | originalResolution: session.videoHeight, |
68e70a74 C |
217 | rtmpUrl, |
218 | fps, | |
c6c0fa6c C |
219 | resolutionsEnabled |
220 | }) | |
221 | } | |
222 | ||
223 | private async runMuxing (options: { | |
224 | sessionId: string | |
225 | videoLive: MVideoLiveVideo | |
226 | playlist: MStreamingPlaylist | |
68e70a74 C |
227 | rtmpUrl: string |
228 | fps: number | |
c6c0fa6c C |
229 | resolutionsEnabled: number[] |
230 | originalResolution: number | |
231 | }) { | |
68e70a74 | 232 | const { sessionId, videoLive, playlist, resolutionsEnabled, originalResolution, fps, rtmpUrl } = options |
fb719404 | 233 | const startStreamDateTime = new Date().getTime() |
c6c0fa6c C |
234 | const allResolutions = resolutionsEnabled.concat([ originalResolution ]) |
235 | ||
fb719404 C |
236 | const user = await UserModel.loadByLiveId(videoLive.id) |
237 | if (!this.livesPerUser.has(user.id)) { | |
238 | this.livesPerUser.set(user.id, []) | |
239 | } | |
240 | ||
241 | const currentUserLive = { liveId: videoLive.id, videoId: videoLive.videoId, size: 0 } | |
242 | const livesOfUser = this.livesPerUser.get(user.id) | |
243 | livesOfUser.push(currentUserLive) | |
244 | ||
c6c0fa6c C |
245 | for (let i = 0; i < allResolutions.length; i++) { |
246 | const resolution = allResolutions[i] | |
247 | ||
248 | VideoFileModel.upsert({ | |
249 | resolution, | |
250 | size: -1, | |
251 | extname: '.ts', | |
252 | infoHash: null, | |
bd54ad19 | 253 | fps, |
c6c0fa6c C |
254 | videoStreamingPlaylistId: playlist.id |
255 | }).catch(err => { | |
256 | logger.error('Cannot create file for live streaming.', { err }) | |
257 | }) | |
258 | } | |
259 | ||
260 | const outPath = getHLSDirectory(videoLive.Video) | |
261 | await ensureDir(outPath) | |
262 | ||
68e70a74 | 263 | const videoUUID = videoLive.Video.uuid |
fb719404 C |
264 | const deleteSegments = videoLive.saveReplay === false |
265 | ||
c6c0fa6c | 266 | const ffmpegExec = CONFIG.LIVE.TRANSCODING.ENABLED |
68e70a74 | 267 | ? runLiveTranscoding(rtmpUrl, outPath, allResolutions, fps, deleteSegments) |
fb719404 | 268 | : runLiveMuxing(rtmpUrl, outPath, deleteSegments) |
c6c0fa6c | 269 | |
68e70a74 | 270 | logger.info('Running live muxing/transcoding for %s.', videoUUID) |
c6c0fa6c C |
271 | this.transSessions.set(sessionId, ffmpegExec) |
272 | ||
a5cf76af C |
273 | const tsWatcher = chokidar.watch(outPath + '/*.ts') |
274 | ||
fb719404 C |
275 | const updateSegment = segmentPath => this.segmentsSha256Queue.push({ operation: 'update', segmentPath, videoUUID }) |
276 | ||
277 | const addHandler = segmentPath => { | |
278 | updateSegment(segmentPath) | |
279 | ||
280 | if (this.isDurationConstraintValid(startStreamDateTime) !== true) { | |
97969c4e C |
281 | logger.info('Stopping session of %s: max duration exceeded.', videoUUID) |
282 | ||
fb719404 C |
283 | this.stopSessionOf(videoLive.videoId) |
284 | } | |
285 | ||
97969c4e | 286 | // Check user quota if the user enabled replay saving |
fb719404 C |
287 | if (videoLive.saveReplay === true) { |
288 | stat(segmentPath) | |
289 | .then(segmentStat => { | |
290 | currentUserLive.size += segmentStat.size | |
291 | }) | |
292 | .then(() => this.isQuotaConstraintValid(user, videoLive)) | |
293 | .then(quotaValid => { | |
294 | if (quotaValid !== true) { | |
97969c4e C |
295 | logger.info('Stopping session of %s: user quota exceeded.', videoUUID) |
296 | ||
fb719404 C |
297 | this.stopSessionOf(videoLive.videoId) |
298 | } | |
299 | }) | |
300 | .catch(err => logger.error('Cannot stat %s or check quota of %d.', segmentPath, user.id, { err })) | |
301 | } | |
a5cf76af C |
302 | } |
303 | ||
304 | const deleteHandler = segmentPath => this.segmentsSha256Queue.push({ operation: 'delete', segmentPath, videoUUID }) | |
305 | ||
fb719404 C |
306 | tsWatcher.on('add', p => addHandler(p)) |
307 | tsWatcher.on('change', p => updateSegment(p)) | |
a5cf76af C |
308 | tsWatcher.on('unlink', p => deleteHandler(p)) |
309 | ||
310 | const masterWatcher = chokidar.watch(outPath + '/master.m3u8') | |
311 | masterWatcher.on('add', async () => { | |
312 | try { | |
313 | const video = await VideoModel.loadAndPopulateAccountAndServerAndTags(videoLive.videoId) | |
314 | ||
315 | video.state = VideoState.PUBLISHED | |
316 | await video.save() | |
317 | videoLive.Video = video | |
318 | ||
319 | await federateVideoIfNeeded(video, false) | |
320 | ||
321 | PeerTubeSocket.Instance.sendVideoLiveNewState(video) | |
322 | } catch (err) { | |
323 | logger.error('Cannot federate video %d.', videoLive.videoId, { err }) | |
324 | } finally { | |
325 | masterWatcher.close() | |
326 | .catch(err => logger.error('Cannot close master watcher of %s.', outPath, { err })) | |
327 | } | |
328 | }) | |
329 | ||
c6c0fa6c | 330 | const onFFmpegEnded = () => { |
68e70a74 | 331 | logger.info('RTMP transmuxing for video %s ended. Scheduling cleanup', rtmpUrl) |
c6c0fa6c | 332 | |
284ef529 C |
333 | this.transSessions.delete(sessionId) |
334 | ||
a5cf76af C |
335 | Promise.all([ tsWatcher.close(), masterWatcher.close() ]) |
336 | .catch(err => logger.error('Cannot close watchers of %s.', outPath, { err })) | |
337 | ||
338 | this.onEndTransmuxing(videoLive.Video.id) | |
c6c0fa6c C |
339 | .catch(err => logger.error('Error in closed transmuxing.', { err })) |
340 | } | |
341 | ||
342 | ffmpegExec.on('error', (err, stdout, stderr) => { | |
343 | onFFmpegEnded() | |
344 | ||
345 | // Don't care that we killed the ffmpeg process | |
97969c4e | 346 | if (err?.message?.includes('Exiting normally')) return |
c6c0fa6c C |
347 | |
348 | logger.error('Live transcoding error.', { err, stdout, stderr }) | |
77e9f859 C |
349 | |
350 | this.abortSession(sessionId) | |
c6c0fa6c C |
351 | }) |
352 | ||
353 | ffmpegExec.on('end', () => onFFmpegEnded()) | |
c6c0fa6c C |
354 | } |
355 | ||
fb719404 | 356 | private async onEndTransmuxing (videoId: number, cleanupNow = false) { |
a5cf76af C |
357 | try { |
358 | const fullVideo = await VideoModel.loadAndPopulateAccountAndServerAndTags(videoId) | |
359 | if (!fullVideo) return | |
c6c0fa6c | 360 | |
a5cf76af C |
361 | JobQueue.Instance.createJob({ |
362 | type: 'video-live-ending', | |
363 | payload: { | |
364 | videoId: fullVideo.id | |
365 | } | |
fb719404 | 366 | }, { delay: cleanupNow ? 0 : VIDEO_LIVE.CLEANUP_DELAY }) |
c6c0fa6c | 367 | |
97969c4e | 368 | fullVideo.state = VideoState.LIVE_ENDED |
a5cf76af | 369 | await fullVideo.save() |
c6c0fa6c | 370 | |
a5cf76af | 371 | PeerTubeSocket.Instance.sendVideoLiveNewState(fullVideo) |
c6c0fa6c | 372 | |
a5cf76af C |
373 | await federateVideoIfNeeded(fullVideo, false) |
374 | } catch (err) { | |
375 | logger.error('Cannot save/federate new video state of live streaming.', { err }) | |
376 | } | |
c6c0fa6c C |
377 | } |
378 | ||
379 | private async addSegmentSha (options: SegmentSha256QueueParam) { | |
380 | const segmentName = basename(options.segmentPath) | |
381 | logger.debug('Updating live sha segment %s.', options.segmentPath) | |
382 | ||
383 | const shaResult = await buildSha256Segment(options.segmentPath) | |
384 | ||
385 | if (!this.segmentsSha256.has(options.videoUUID)) { | |
386 | this.segmentsSha256.set(options.videoUUID, new Map()) | |
387 | } | |
388 | ||
389 | const filesMap = this.segmentsSha256.get(options.videoUUID) | |
390 | filesMap.set(segmentName, shaResult) | |
391 | } | |
392 | ||
393 | private removeSegmentSha (options: SegmentSha256QueueParam) { | |
394 | const segmentName = basename(options.segmentPath) | |
395 | ||
396 | logger.debug('Removing live sha segment %s.', options.segmentPath) | |
397 | ||
398 | const filesMap = this.segmentsSha256.get(options.videoUUID) | |
399 | if (!filesMap) { | |
400 | logger.warn('Unknown files map to remove sha for %s.', options.videoUUID) | |
401 | return | |
402 | } | |
403 | ||
404 | if (!filesMap.has(segmentName)) { | |
405 | logger.warn('Unknown segment in files map for video %s and segment %s.', options.videoUUID, options.segmentPath) | |
406 | return | |
407 | } | |
408 | ||
409 | filesMap.delete(segmentName) | |
410 | } | |
411 | ||
fb719404 C |
412 | private isDurationConstraintValid (streamingStartTime: number) { |
413 | const maxDuration = CONFIG.LIVE.MAX_DURATION | |
414 | // No limit | |
415 | if (maxDuration === null) return true | |
416 | ||
417 | const now = new Date().getTime() | |
418 | const max = streamingStartTime + maxDuration | |
419 | ||
420 | return now <= max | |
421 | } | |
422 | ||
423 | private async isQuotaConstraintValid (user: MUserId, live: MVideoLive) { | |
424 | if (live.saveReplay !== true) return true | |
425 | ||
426 | return this.isAbleToUploadVideoWithCache(user.id) | |
427 | } | |
428 | ||
c6c0fa6c C |
429 | static get Instance () { |
430 | return this.instance || (this.instance = new this()) | |
431 | } | |
432 | } | |
433 | ||
434 | // --------------------------------------------------------------------------- | |
435 | ||
436 | export { | |
437 | LiveManager | |
438 | } |