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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' | |
a5cf76af C |
5 | import { ensureDir } from 'fs-extra' |
6 | import { basename } from 'path' | |
c6c0fa6c C |
7 | import { computeResolutionsToTranscode, runLiveMuxing, runLiveTranscoding } from '@server/helpers/ffmpeg-utils' |
8 | import { logger } from '@server/helpers/logger' | |
9 | import { CONFIG, registerConfigChangedHandler } from '@server/initializers/config' | |
10 | import { P2P_MEDIA_LOADER_PEER_VERSION, VIDEO_LIVE, WEBSERVER } from '@server/initializers/constants' | |
a5cf76af | 11 | import { VideoModel } from '@server/models/video/video' |
c6c0fa6c C |
12 | import { VideoFileModel } from '@server/models/video/video-file' |
13 | import { VideoLiveModel } from '@server/models/video/video-live' | |
14 | import { VideoStreamingPlaylistModel } from '@server/models/video/video-streaming-playlist' | |
a5cf76af | 15 | import { MStreamingPlaylist, MVideoLiveVideo } from '@server/types/models' |
c6c0fa6c | 16 | import { VideoState, VideoStreamingPlaylistType } from '@shared/models' |
a5cf76af | 17 | import { federateVideoIfNeeded } from './activitypub/videos' |
c6c0fa6c | 18 | import { buildSha256Segment } from './hls' |
a5cf76af C |
19 | import { JobQueue } from './job-queue' |
20 | import { PeerTubeSocket } from './peertube-socket' | |
c6c0fa6c C |
21 | import { getHLSDirectory } from './video-paths' |
22 | ||
23 | const NodeRtmpServer = require('node-media-server/node_rtmp_server') | |
24 | const context = require('node-media-server/node_core_ctx') | |
25 | const nodeMediaServerLogger = require('node-media-server/node_core_logger') | |
26 | ||
27 | // Disable node media server logs | |
28 | nodeMediaServerLogger.setLogType(0) | |
29 | ||
30 | const config = { | |
31 | rtmp: { | |
32 | port: CONFIG.LIVE.RTMP.PORT, | |
33 | chunk_size: VIDEO_LIVE.RTMP.CHUNK_SIZE, | |
34 | gop_cache: VIDEO_LIVE.RTMP.GOP_CACHE, | |
35 | ping: VIDEO_LIVE.RTMP.PING, | |
36 | ping_timeout: VIDEO_LIVE.RTMP.PING_TIMEOUT | |
37 | }, | |
38 | transcoding: { | |
39 | ffmpeg: 'ffmpeg' | |
40 | } | |
41 | } | |
42 | ||
43 | type SegmentSha256QueueParam = { | |
44 | operation: 'update' | 'delete' | |
45 | videoUUID: string | |
46 | segmentPath: string | |
47 | } | |
48 | ||
49 | class LiveManager { | |
50 | ||
51 | private static instance: LiveManager | |
52 | ||
53 | private readonly transSessions = new Map<string, FfmpegCommand>() | |
a5cf76af | 54 | private readonly videoSessions = new Map<number, string>() |
c6c0fa6c C |
55 | private readonly segmentsSha256 = new Map<string, Map<string, string>>() |
56 | ||
57 | private segmentsSha256Queue: AsyncQueue<SegmentSha256QueueParam> | |
58 | private rtmpServer: any | |
59 | ||
60 | private constructor () { | |
61 | } | |
62 | ||
63 | init () { | |
a5cf76af C |
64 | const events = this.getContext().nodeEvent |
65 | events.on('postPublish', (sessionId: string, streamPath: string) => { | |
c6c0fa6c C |
66 | logger.debug('RTMP received stream', { id: sessionId, streamPath }) |
67 | ||
68 | const splittedPath = streamPath.split('/') | |
69 | if (splittedPath.length !== 3 || splittedPath[1] !== VIDEO_LIVE.RTMP.BASE_PATH) { | |
70 | logger.warn('Live path is incorrect.', { streamPath }) | |
71 | return this.abortSession(sessionId) | |
72 | } | |
73 | ||
74 | this.handleSession(sessionId, streamPath, splittedPath[2]) | |
75 | .catch(err => logger.error('Cannot handle sessions.', { err })) | |
76 | }) | |
77 | ||
a5cf76af | 78 | events.on('donePublish', sessionId => { |
c6c0fa6c C |
79 | this.abortSession(sessionId) |
80 | }) | |
81 | ||
82 | this.segmentsSha256Queue = queue<SegmentSha256QueueParam, Error>((options, cb) => { | |
83 | const promise = options.operation === 'update' | |
84 | ? this.addSegmentSha(options) | |
85 | : Promise.resolve(this.removeSegmentSha(options)) | |
86 | ||
87 | promise.then(() => cb()) | |
88 | .catch(err => { | |
89 | logger.error('Cannot update/remove sha segment %s.', options.segmentPath, { err }) | |
90 | cb() | |
91 | }) | |
92 | }) | |
93 | ||
94 | registerConfigChangedHandler(() => { | |
95 | if (!this.rtmpServer && CONFIG.LIVE.ENABLED === true) { | |
96 | this.run() | |
97 | return | |
98 | } | |
99 | ||
100 | if (this.rtmpServer && CONFIG.LIVE.ENABLED === false) { | |
101 | this.stop() | |
102 | } | |
103 | }) | |
104 | } | |
105 | ||
106 | run () { | |
107 | logger.info('Running RTMP server.') | |
108 | ||
109 | this.rtmpServer = new NodeRtmpServer(config) | |
110 | this.rtmpServer.run() | |
111 | } | |
112 | ||
113 | stop () { | |
114 | logger.info('Stopping RTMP server.') | |
115 | ||
116 | this.rtmpServer.stop() | |
117 | this.rtmpServer = undefined | |
118 | } | |
119 | ||
120 | getSegmentsSha256 (videoUUID: string) { | |
121 | return this.segmentsSha256.get(videoUUID) | |
122 | } | |
123 | ||
a5cf76af C |
124 | stopSessionOf (videoId: number) { |
125 | const sessionId = this.videoSessions.get(videoId) | |
126 | if (!sessionId) return | |
127 | ||
128 | this.abortSession(sessionId) | |
129 | ||
130 | this.onEndTransmuxing(videoId) | |
131 | .catch(err => logger.error('Cannot end transmuxing of video %d.', videoId, { err })) | |
132 | } | |
133 | ||
c6c0fa6c C |
134 | private getContext () { |
135 | return context | |
136 | } | |
137 | ||
138 | private abortSession (id: string) { | |
139 | const session = this.getContext().sessions.get(id) | |
140 | if (session) session.stop() | |
141 | ||
142 | const transSession = this.transSessions.get(id) | |
143 | if (transSession) transSession.kill('SIGKILL') | |
144 | } | |
145 | ||
146 | private async handleSession (sessionId: string, streamPath: string, streamKey: string) { | |
147 | const videoLive = await VideoLiveModel.loadByStreamKey(streamKey) | |
148 | if (!videoLive) { | |
149 | logger.warn('Unknown live video with stream key %s.', streamKey) | |
150 | return this.abortSession(sessionId) | |
151 | } | |
152 | ||
153 | const video = videoLive.Video | |
a5cf76af C |
154 | if (video.isBlacklisted()) { |
155 | logger.warn('Video is blacklisted. Refusing stream %s.', streamKey) | |
156 | return this.abortSession(sessionId) | |
157 | } | |
158 | ||
159 | this.videoSessions.set(video.id, sessionId) | |
160 | ||
c6c0fa6c C |
161 | const playlistUrl = WEBSERVER.URL + VideoStreamingPlaylistModel.getHlsMasterPlaylistStaticPath(video.uuid) |
162 | ||
163 | const session = this.getContext().sessions.get(sessionId) | |
164 | const resolutionsEnabled = CONFIG.LIVE.TRANSCODING.ENABLED | |
165 | ? computeResolutionsToTranscode(session.videoHeight, 'live') | |
166 | : [] | |
167 | ||
168 | logger.info('Will mux/transcode live video of original resolution %d.', session.videoHeight, { resolutionsEnabled }) | |
169 | ||
170 | const [ videoStreamingPlaylist ] = await VideoStreamingPlaylistModel.upsert({ | |
171 | videoId: video.id, | |
172 | playlistUrl, | |
173 | segmentsSha256Url: WEBSERVER.URL + VideoStreamingPlaylistModel.getHlsSha256SegmentsStaticPath(video.uuid, video.isLive), | |
174 | p2pMediaLoaderInfohashes: VideoStreamingPlaylistModel.buildP2PMediaLoaderInfoHashes(playlistUrl, resolutionsEnabled), | |
175 | p2pMediaLoaderPeerVersion: P2P_MEDIA_LOADER_PEER_VERSION, | |
176 | ||
177 | type: VideoStreamingPlaylistType.HLS | |
178 | }, { returning: true }) as [ MStreamingPlaylist, boolean ] | |
179 | ||
c6c0fa6c C |
180 | return this.runMuxing({ |
181 | sessionId, | |
182 | videoLive, | |
183 | playlist: videoStreamingPlaylist, | |
184 | streamPath, | |
185 | originalResolution: session.videoHeight, | |
186 | resolutionsEnabled | |
187 | }) | |
188 | } | |
189 | ||
190 | private async runMuxing (options: { | |
191 | sessionId: string | |
192 | videoLive: MVideoLiveVideo | |
193 | playlist: MStreamingPlaylist | |
194 | streamPath: string | |
195 | resolutionsEnabled: number[] | |
196 | originalResolution: number | |
197 | }) { | |
198 | const { sessionId, videoLive, playlist, streamPath, resolutionsEnabled, originalResolution } = options | |
199 | const allResolutions = resolutionsEnabled.concat([ originalResolution ]) | |
200 | ||
201 | for (let i = 0; i < allResolutions.length; i++) { | |
202 | const resolution = allResolutions[i] | |
203 | ||
204 | VideoFileModel.upsert({ | |
205 | resolution, | |
206 | size: -1, | |
207 | extname: '.ts', | |
208 | infoHash: null, | |
209 | fps: -1, | |
210 | videoStreamingPlaylistId: playlist.id | |
211 | }).catch(err => { | |
212 | logger.error('Cannot create file for live streaming.', { err }) | |
213 | }) | |
214 | } | |
215 | ||
216 | const outPath = getHLSDirectory(videoLive.Video) | |
217 | await ensureDir(outPath) | |
218 | ||
219 | const rtmpUrl = 'rtmp://127.0.0.1:' + config.rtmp.port + streamPath | |
220 | const ffmpegExec = CONFIG.LIVE.TRANSCODING.ENABLED | |
221 | ? runLiveTranscoding(rtmpUrl, outPath, allResolutions) | |
222 | : runLiveMuxing(rtmpUrl, outPath) | |
223 | ||
224 | logger.info('Running live muxing/transcoding.') | |
225 | ||
226 | this.transSessions.set(sessionId, ffmpegExec) | |
227 | ||
a5cf76af C |
228 | const videoUUID = videoLive.Video.uuid |
229 | const tsWatcher = chokidar.watch(outPath + '/*.ts') | |
230 | ||
231 | const updateHandler = segmentPath => { | |
232 | this.segmentsSha256Queue.push({ operation: 'update', segmentPath, videoUUID }) | |
233 | } | |
234 | ||
235 | const deleteHandler = segmentPath => this.segmentsSha256Queue.push({ operation: 'delete', segmentPath, videoUUID }) | |
236 | ||
237 | tsWatcher.on('add', p => updateHandler(p)) | |
238 | tsWatcher.on('change', p => updateHandler(p)) | |
239 | tsWatcher.on('unlink', p => deleteHandler(p)) | |
240 | ||
241 | const masterWatcher = chokidar.watch(outPath + '/master.m3u8') | |
242 | masterWatcher.on('add', async () => { | |
243 | try { | |
244 | const video = await VideoModel.loadAndPopulateAccountAndServerAndTags(videoLive.videoId) | |
245 | ||
246 | video.state = VideoState.PUBLISHED | |
247 | await video.save() | |
248 | videoLive.Video = video | |
249 | ||
250 | await federateVideoIfNeeded(video, false) | |
251 | ||
252 | PeerTubeSocket.Instance.sendVideoLiveNewState(video) | |
253 | } catch (err) { | |
254 | logger.error('Cannot federate video %d.', videoLive.videoId, { err }) | |
255 | } finally { | |
256 | masterWatcher.close() | |
257 | .catch(err => logger.error('Cannot close master watcher of %s.', outPath, { err })) | |
258 | } | |
259 | }) | |
260 | ||
c6c0fa6c | 261 | const onFFmpegEnded = () => { |
a5cf76af | 262 | logger.info('RTMP transmuxing for video %s ended. Scheduling cleanup', streamPath) |
c6c0fa6c | 263 | |
a5cf76af C |
264 | Promise.all([ tsWatcher.close(), masterWatcher.close() ]) |
265 | .catch(err => logger.error('Cannot close watchers of %s.', outPath, { err })) | |
266 | ||
267 | this.onEndTransmuxing(videoLive.Video.id) | |
c6c0fa6c C |
268 | .catch(err => logger.error('Error in closed transmuxing.', { err })) |
269 | } | |
270 | ||
271 | ffmpegExec.on('error', (err, stdout, stderr) => { | |
272 | onFFmpegEnded() | |
273 | ||
274 | // Don't care that we killed the ffmpeg process | |
275 | if (err?.message?.includes('SIGKILL')) return | |
276 | ||
277 | logger.error('Live transcoding error.', { err, stdout, stderr }) | |
278 | }) | |
279 | ||
280 | ffmpegExec.on('end', () => onFFmpegEnded()) | |
c6c0fa6c C |
281 | } |
282 | ||
a5cf76af C |
283 | private async onEndTransmuxing (videoId: number) { |
284 | try { | |
285 | const fullVideo = await VideoModel.loadAndPopulateAccountAndServerAndTags(videoId) | |
286 | if (!fullVideo) return | |
c6c0fa6c | 287 | |
a5cf76af C |
288 | JobQueue.Instance.createJob({ |
289 | type: 'video-live-ending', | |
290 | payload: { | |
291 | videoId: fullVideo.id | |
292 | } | |
293 | }, { delay: VIDEO_LIVE.CLEANUP_DELAY }) | |
c6c0fa6c | 294 | |
a5cf76af C |
295 | // FIXME: use end |
296 | fullVideo.state = VideoState.WAITING_FOR_LIVE | |
297 | await fullVideo.save() | |
c6c0fa6c | 298 | |
a5cf76af | 299 | PeerTubeSocket.Instance.sendVideoLiveNewState(fullVideo) |
c6c0fa6c | 300 | |
a5cf76af C |
301 | await federateVideoIfNeeded(fullVideo, false) |
302 | } catch (err) { | |
303 | logger.error('Cannot save/federate new video state of live streaming.', { err }) | |
304 | } | |
c6c0fa6c C |
305 | } |
306 | ||
307 | private async addSegmentSha (options: SegmentSha256QueueParam) { | |
308 | const segmentName = basename(options.segmentPath) | |
309 | logger.debug('Updating live sha segment %s.', options.segmentPath) | |
310 | ||
311 | const shaResult = await buildSha256Segment(options.segmentPath) | |
312 | ||
313 | if (!this.segmentsSha256.has(options.videoUUID)) { | |
314 | this.segmentsSha256.set(options.videoUUID, new Map()) | |
315 | } | |
316 | ||
317 | const filesMap = this.segmentsSha256.get(options.videoUUID) | |
318 | filesMap.set(segmentName, shaResult) | |
319 | } | |
320 | ||
321 | private removeSegmentSha (options: SegmentSha256QueueParam) { | |
322 | const segmentName = basename(options.segmentPath) | |
323 | ||
324 | logger.debug('Removing live sha segment %s.', options.segmentPath) | |
325 | ||
326 | const filesMap = this.segmentsSha256.get(options.videoUUID) | |
327 | if (!filesMap) { | |
328 | logger.warn('Unknown files map to remove sha for %s.', options.videoUUID) | |
329 | return | |
330 | } | |
331 | ||
332 | if (!filesMap.has(segmentName)) { | |
333 | logger.warn('Unknown segment in files map for video %s and segment %s.', options.videoUUID, options.segmentPath) | |
334 | return | |
335 | } | |
336 | ||
337 | filesMap.delete(segmentName) | |
338 | } | |
339 | ||
340 | static get Instance () { | |
341 | return this.instance || (this.instance = new this()) | |
342 | } | |
343 | } | |
344 | ||
345 | // --------------------------------------------------------------------------- | |
346 | ||
347 | export { | |
348 | LiveManager | |
349 | } |