465 lines
14 KiB
TypeScript
465 lines
14 KiB
TypeScript
import { MutexInterface } from 'async-mutex'
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import { Job } from 'bullmq'
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import { copyFile, ensureDir, move, remove, stat } from 'fs-extra'
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import { basename, extname as extnameUtil, join } from 'path'
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import { toEven } from '@server/helpers/core-utils'
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import { retryTransactionWrapper } from '@server/helpers/database-utils'
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import { createTorrentAndSetInfoHash } from '@server/helpers/webtorrent'
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import { sequelizeTypescript } from '@server/initializers/database'
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import { MVideo, MVideoFile, MVideoFullLight } from '@server/types/models'
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import { pick } from '@shared/core-utils'
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import { VideoResolution, VideoStorage } from '../../../shared/models/videos'
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import {
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buildFileMetadata,
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canDoQuickTranscode,
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computeResolutionsToTranscode,
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ffprobePromise,
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getVideoStreamDuration,
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getVideoStreamFPS,
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transcodeVOD,
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TranscodeVODOptions,
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TranscodeVODOptionsType
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} from '../../helpers/ffmpeg'
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import { CONFIG } from '../../initializers/config'
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import { VideoFileModel } from '../../models/video/video-file'
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import { VideoStreamingPlaylistModel } from '../../models/video/video-streaming-playlist'
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import { updatePlaylistAfterFileChange } from '../hls'
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import { generateHLSVideoFilename, generateWebTorrentVideoFilename, getHlsResolutionPlaylistFilename } from '../paths'
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import { VideoPathManager } from '../video-path-manager'
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import { VideoTranscodingProfilesManager } from './default-transcoding-profiles'
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/**
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*
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* Functions that run transcoding functions, update the database, cleanup files, create torrent files...
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* Mainly called by the job queue
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*
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*/
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// Optimize the original video file and replace it. The resolution is not changed.
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async function optimizeOriginalVideofile (options: {
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video: MVideoFullLight
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inputVideoFile: MVideoFile
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job: Job
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}) {
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const { video, inputVideoFile, job } = options
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const transcodeDirectory = CONFIG.STORAGE.TMP_DIR
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const newExtname = '.mp4'
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// Will be released by our transcodeVOD function once ffmpeg is ran
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const inputFileMutexReleaser = await VideoPathManager.Instance.lockFiles(video.uuid)
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try {
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await video.reload()
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const fileWithVideoOrPlaylist = inputVideoFile.withVideoOrPlaylist(video)
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const result = await VideoPathManager.Instance.makeAvailableVideoFile(fileWithVideoOrPlaylist, async videoInputPath => {
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const videoTranscodedPath = join(transcodeDirectory, video.id + '-transcoded' + newExtname)
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const transcodeType: TranscodeVODOptionsType = await canDoQuickTranscode(videoInputPath)
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? 'quick-transcode'
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: 'video'
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const resolution = buildOriginalFileResolution(inputVideoFile.resolution)
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const transcodeOptions: TranscodeVODOptions = {
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type: transcodeType,
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inputPath: videoInputPath,
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outputPath: videoTranscodedPath,
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inputFileMutexReleaser,
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availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
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profile: CONFIG.TRANSCODING.PROFILE,
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resolution,
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job
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}
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// Could be very long!
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await transcodeVOD(transcodeOptions)
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// Important to do this before getVideoFilename() to take in account the new filename
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inputVideoFile.resolution = resolution
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inputVideoFile.extname = newExtname
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inputVideoFile.filename = generateWebTorrentVideoFilename(resolution, newExtname)
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inputVideoFile.storage = VideoStorage.FILE_SYSTEM
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const { videoFile } = await onWebTorrentVideoFileTranscoding(video, inputVideoFile, videoTranscodedPath, inputVideoFile)
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await remove(videoInputPath)
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return { transcodeType, videoFile }
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})
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return result
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} finally {
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inputFileMutexReleaser()
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}
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}
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// Transcode the original video file to a lower resolution compatible with WebTorrent
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async function transcodeNewWebTorrentResolution (options: {
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video: MVideoFullLight
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resolution: VideoResolution
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job: Job
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}) {
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const { video, resolution, job } = options
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const transcodeDirectory = CONFIG.STORAGE.TMP_DIR
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const newExtname = '.mp4'
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const inputFileMutexReleaser = await VideoPathManager.Instance.lockFiles(video.uuid)
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try {
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await video.reload()
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const file = video.getMaxQualityFile().withVideoOrPlaylist(video)
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const result = await VideoPathManager.Instance.makeAvailableVideoFile(file, async videoInputPath => {
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const newVideoFile = new VideoFileModel({
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resolution,
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extname: newExtname,
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filename: generateWebTorrentVideoFilename(resolution, newExtname),
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size: 0,
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videoId: video.id
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})
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const videoTranscodedPath = join(transcodeDirectory, newVideoFile.filename)
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const transcodeOptions = resolution === VideoResolution.H_NOVIDEO
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? {
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type: 'only-audio' as 'only-audio',
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inputPath: videoInputPath,
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outputPath: videoTranscodedPath,
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inputFileMutexReleaser,
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availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
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profile: CONFIG.TRANSCODING.PROFILE,
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resolution,
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job
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}
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: {
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type: 'video' as 'video',
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inputPath: videoInputPath,
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outputPath: videoTranscodedPath,
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inputFileMutexReleaser,
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availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
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profile: CONFIG.TRANSCODING.PROFILE,
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resolution,
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job
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}
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await transcodeVOD(transcodeOptions)
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return onWebTorrentVideoFileTranscoding(video, newVideoFile, videoTranscodedPath, newVideoFile)
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})
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return result
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} finally {
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inputFileMutexReleaser()
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}
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}
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// Merge an image with an audio file to create a video
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async function mergeAudioVideofile (options: {
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video: MVideoFullLight
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resolution: VideoResolution
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job: Job
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}) {
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const { video, resolution, job } = options
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const transcodeDirectory = CONFIG.STORAGE.TMP_DIR
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const newExtname = '.mp4'
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const inputFileMutexReleaser = await VideoPathManager.Instance.lockFiles(video.uuid)
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try {
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await video.reload()
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const inputVideoFile = video.getMinQualityFile()
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const fileWithVideoOrPlaylist = inputVideoFile.withVideoOrPlaylist(video)
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const result = await VideoPathManager.Instance.makeAvailableVideoFile(fileWithVideoOrPlaylist, async audioInputPath => {
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const videoTranscodedPath = join(transcodeDirectory, video.id + '-transcoded' + newExtname)
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// If the user updates the video preview during transcoding
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const previewPath = video.getPreview().getPath()
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const tmpPreviewPath = join(CONFIG.STORAGE.TMP_DIR, basename(previewPath))
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await copyFile(previewPath, tmpPreviewPath)
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const transcodeOptions = {
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type: 'merge-audio' as 'merge-audio',
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inputPath: tmpPreviewPath,
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outputPath: videoTranscodedPath,
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inputFileMutexReleaser,
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availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
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profile: CONFIG.TRANSCODING.PROFILE,
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audioPath: audioInputPath,
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resolution,
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job
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}
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try {
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await transcodeVOD(transcodeOptions)
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await remove(audioInputPath)
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await remove(tmpPreviewPath)
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} catch (err) {
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await remove(tmpPreviewPath)
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throw err
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}
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// Important to do this before getVideoFilename() to take in account the new file extension
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inputVideoFile.extname = newExtname
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inputVideoFile.resolution = resolution
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inputVideoFile.filename = generateWebTorrentVideoFilename(inputVideoFile.resolution, newExtname)
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// ffmpeg generated a new video file, so update the video duration
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// See https://trac.ffmpeg.org/ticket/5456
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video.duration = await getVideoStreamDuration(videoTranscodedPath)
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await video.save()
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return onWebTorrentVideoFileTranscoding(video, inputVideoFile, videoTranscodedPath, inputVideoFile)
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})
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return result
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} finally {
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inputFileMutexReleaser()
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}
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}
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// Concat TS segments from a live video to a fragmented mp4 HLS playlist
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async function generateHlsPlaylistResolutionFromTS (options: {
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video: MVideo
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concatenatedTsFilePath: string
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resolution: VideoResolution
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isAAC: boolean
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inputFileMutexReleaser: MutexInterface.Releaser
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}) {
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return generateHlsPlaylistCommon({
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type: 'hls-from-ts' as 'hls-from-ts',
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inputPath: options.concatenatedTsFilePath,
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...pick(options, [ 'video', 'resolution', 'inputFileMutexReleaser', 'isAAC' ])
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})
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}
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// Generate an HLS playlist from an input file, and update the master playlist
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function generateHlsPlaylistResolution (options: {
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video: MVideo
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videoInputPath: string
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resolution: VideoResolution
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copyCodecs: boolean
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inputFileMutexReleaser: MutexInterface.Releaser
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job?: Job
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}) {
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return generateHlsPlaylistCommon({
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type: 'hls' as 'hls',
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inputPath: options.videoInputPath,
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...pick(options, [ 'video', 'resolution', 'copyCodecs', 'inputFileMutexReleaser', 'job' ])
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})
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}
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// ---------------------------------------------------------------------------
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export {
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generateHlsPlaylistResolution,
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generateHlsPlaylistResolutionFromTS,
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optimizeOriginalVideofile,
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transcodeNewWebTorrentResolution,
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mergeAudioVideofile
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}
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// ---------------------------------------------------------------------------
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async function onWebTorrentVideoFileTranscoding (
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video: MVideoFullLight,
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videoFile: MVideoFile,
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transcodingPath: string,
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newVideoFile: MVideoFile
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) {
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const mutexReleaser = await VideoPathManager.Instance.lockFiles(video.uuid)
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try {
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await video.reload()
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const outputPath = VideoPathManager.Instance.getFSVideoFileOutputPath(video, newVideoFile)
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const stats = await stat(transcodingPath)
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const probe = await ffprobePromise(transcodingPath)
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const fps = await getVideoStreamFPS(transcodingPath, probe)
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const metadata = await buildFileMetadata(transcodingPath, probe)
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await move(transcodingPath, outputPath, { overwrite: true })
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videoFile.size = stats.size
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videoFile.fps = fps
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videoFile.metadata = metadata
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await createTorrentAndSetInfoHash(video, videoFile)
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const oldFile = await VideoFileModel.loadWebTorrentFile({ videoId: video.id, fps: videoFile.fps, resolution: videoFile.resolution })
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if (oldFile) await video.removeWebTorrentFile(oldFile)
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await VideoFileModel.customUpsert(videoFile, 'video', undefined)
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video.VideoFiles = await video.$get('VideoFiles')
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return { video, videoFile }
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} finally {
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mutexReleaser()
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}
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}
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async function generateHlsPlaylistCommon (options: {
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type: 'hls' | 'hls-from-ts'
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video: MVideo
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inputPath: string
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resolution: VideoResolution
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inputFileMutexReleaser: MutexInterface.Releaser
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copyCodecs?: boolean
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isAAC?: boolean
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job?: Job
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}) {
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const { type, video, inputPath, resolution, copyCodecs, isAAC, job, inputFileMutexReleaser } = options
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const transcodeDirectory = CONFIG.STORAGE.TMP_DIR
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const videoTranscodedBasePath = join(transcodeDirectory, type)
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await ensureDir(videoTranscodedBasePath)
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const videoFilename = generateHLSVideoFilename(resolution)
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const resolutionPlaylistFilename = getHlsResolutionPlaylistFilename(videoFilename)
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const resolutionPlaylistFileTranscodePath = join(videoTranscodedBasePath, resolutionPlaylistFilename)
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const transcodeOptions = {
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type,
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inputPath,
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outputPath: resolutionPlaylistFileTranscodePath,
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availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
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profile: CONFIG.TRANSCODING.PROFILE,
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resolution,
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copyCodecs,
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isAAC,
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inputFileMutexReleaser,
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hlsPlaylist: {
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videoFilename
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},
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job
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}
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await transcodeVOD(transcodeOptions)
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// Create or update the playlist
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const playlist = await retryTransactionWrapper(() => {
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return sequelizeTypescript.transaction(async transaction => {
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return VideoStreamingPlaylistModel.loadOrGenerate(video, transaction)
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})
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})
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const newVideoFile = new VideoFileModel({
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resolution,
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extname: extnameUtil(videoFilename),
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size: 0,
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filename: videoFilename,
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fps: -1,
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videoStreamingPlaylistId: playlist.id
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})
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const mutexReleaser = await VideoPathManager.Instance.lockFiles(video.uuid)
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try {
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// VOD transcoding is a long task, refresh video attributes
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await video.reload()
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const videoFilePath = VideoPathManager.Instance.getFSVideoFileOutputPath(playlist, newVideoFile)
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await ensureDir(VideoPathManager.Instance.getFSHLSOutputPath(video))
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// Move playlist file
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const resolutionPlaylistPath = VideoPathManager.Instance.getFSHLSOutputPath(video, resolutionPlaylistFilename)
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await move(resolutionPlaylistFileTranscodePath, resolutionPlaylistPath, { overwrite: true })
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// Move video file
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await move(join(videoTranscodedBasePath, videoFilename), videoFilePath, { overwrite: true })
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// Update video duration if it was not set (in case of a live for example)
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if (!video.duration) {
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video.duration = await getVideoStreamDuration(videoFilePath)
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await video.save()
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}
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const stats = await stat(videoFilePath)
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newVideoFile.size = stats.size
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newVideoFile.fps = await getVideoStreamFPS(videoFilePath)
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newVideoFile.metadata = await buildFileMetadata(videoFilePath)
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await createTorrentAndSetInfoHash(playlist, newVideoFile)
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const oldFile = await VideoFileModel.loadHLSFile({
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playlistId: playlist.id,
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fps: newVideoFile.fps,
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resolution: newVideoFile.resolution
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})
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if (oldFile) {
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await video.removeStreamingPlaylistVideoFile(playlist, oldFile)
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await oldFile.destroy()
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}
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const savedVideoFile = await VideoFileModel.customUpsert(newVideoFile, 'streaming-playlist', undefined)
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await updatePlaylistAfterFileChange(video, playlist)
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return { resolutionPlaylistPath, videoFile: savedVideoFile }
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} finally {
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mutexReleaser()
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}
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}
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function buildOriginalFileResolution (inputResolution: number) {
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if (CONFIG.TRANSCODING.ALWAYS_TRANSCODE_ORIGINAL_RESOLUTION === true) {
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return toEven(inputResolution)
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}
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const resolutions = computeResolutionsToTranscode({
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input: inputResolution,
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type: 'vod',
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includeInput: false,
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strictLower: false,
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// We don't really care about the audio resolution in this context
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hasAudio: true
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})
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if (resolutions.length === 0) {
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return toEven(inputResolution)
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}
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return Math.max(...resolutions)
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}
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