mirror of https://github.com/Chocobozzz/PeerTube
				
				
				
			
		
			
				
	
	
		
			366 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			TypeScript
		
	
	
			
		
		
	
	
			366 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			TypeScript
		
	
	
import { Job } from 'bull'
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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 { createTorrentAndSetInfoHash } from '@server/helpers/webtorrent'
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import { MStreamingPlaylistFilesVideo, MVideoFile, MVideoFullLight } from '@server/types/models'
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import { VideoResolution, VideoStorage } from '../../../shared/models/videos'
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import { VideoStreamingPlaylistType } from '../../../shared/models/videos/video-streaming-playlist.type'
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import { transcode, TranscodeOptions, TranscodeOptionsType } from '../../helpers/ffmpeg-utils'
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import { canDoQuickTranscode, getDurationFromVideoFile, getMetadataFromFile, getVideoFileFPS } from '../../helpers/ffprobe-utils'
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import { CONFIG } from '../../initializers/config'
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import { P2P_MEDIA_LOADER_PEER_VERSION } from '../../initializers/constants'
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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 { updateMasterHLSPlaylist, updateSha256VODSegments } from '../hls'
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import {
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  generateHLSMasterPlaylistFilename,
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  generateHlsSha256SegmentsFilename,
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  generateHLSVideoFilename,
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  generateWebTorrentVideoFilename,
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  getHlsResolutionPlaylistFilename
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} from '../paths'
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import { VideoPathManager } from '../video-path-manager'
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import { VideoTranscodingProfilesManager } from './video-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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function optimizeOriginalVideofile (video: MVideoFullLight, inputVideoFile: MVideoFile, job?: Job) {
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  const transcodeDirectory = CONFIG.STORAGE.TMP_DIR
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  const newExtname = '.mp4'
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  return VideoPathManager.Instance.makeAvailableVideoFile(video, inputVideoFile, async videoInputPath => {
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    const videoTranscodedPath = join(transcodeDirectory, video.id + '-transcoded' + newExtname)
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    const transcodeType: TranscodeOptionsType = await canDoQuickTranscode(videoInputPath)
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      ? 'quick-transcode'
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      : 'video'
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    const resolution = toEven(inputVideoFile.resolution)
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    const transcodeOptions: TranscodeOptions = {
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      type: transcodeType,
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      inputPath: videoInputPath,
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      outputPath: videoTranscodedPath,
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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 transcode(transcodeOptions)
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    // Important to do this before getVideoFilename() to take in account the new filename
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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 videoOutputPath = VideoPathManager.Instance.getFSVideoFileOutputPath(video, inputVideoFile)
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    const { videoFile } = await onWebTorrentVideoFileTranscoding(video, inputVideoFile, videoTranscodedPath, videoOutputPath)
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    await remove(videoInputPath)
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    return { transcodeType, videoFile }
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  })
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}
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// Transcode the original video file to a lower resolution
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// We are sure it's x264 in mp4 because optimizeOriginalVideofile was already executed
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function transcodeNewWebTorrentResolution (video: MVideoFullLight, resolution: VideoResolution, isPortrait: boolean, job: Job) {
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  const transcodeDirectory = CONFIG.STORAGE.TMP_DIR
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  const extname = '.mp4'
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  return VideoPathManager.Instance.makeAvailableVideoFile(video, video.getMaxQualityFile(), async videoInputPath => {
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    const newVideoFile = new VideoFileModel({
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      resolution,
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      extname,
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      filename: generateWebTorrentVideoFilename(resolution, extname),
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      size: 0,
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      videoId: video.id
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    })
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    const videoOutputPath = VideoPathManager.Instance.getFSVideoFileOutputPath(video, newVideoFile)
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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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        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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        availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
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        profile: CONFIG.TRANSCODING.PROFILE,
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        resolution,
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        isPortraitMode: isPortrait,
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        job
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      }
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    await transcode(transcodeOptions)
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    return onWebTorrentVideoFileTranscoding(video, newVideoFile, videoTranscodedPath, videoOutputPath)
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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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function mergeAudioVideofile (video: MVideoFullLight, resolution: VideoResolution, job: Job) {
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  const transcodeDirectory = CONFIG.STORAGE.TMP_DIR
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  const newExtname = '.mp4'
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  const inputVideoFile = video.getMinQualityFile()
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  return VideoPathManager.Instance.makeAvailableVideoFile(video, inputVideoFile, 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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      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 transcode(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.filename = generateWebTorrentVideoFilename(inputVideoFile.resolution, newExtname)
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    const videoOutputPath = VideoPathManager.Instance.getFSVideoFileOutputPath(video, inputVideoFile)
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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 getDurationFromVideoFile(videoTranscodedPath)
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    await video.save()
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    return onWebTorrentVideoFileTranscoding(video, inputVideoFile, videoTranscodedPath, videoOutputPath)
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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: MVideoFullLight
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  concatenatedTsFilePath: string
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  resolution: VideoResolution
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  isPortraitMode: boolean
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  isAAC: boolean
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}) {
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  return generateHlsPlaylistCommon({
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    video: options.video,
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    resolution: options.resolution,
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    isPortraitMode: options.isPortraitMode,
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    inputPath: options.concatenatedTsFilePath,
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    type: 'hls-from-ts' as 'hls-from-ts',
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    isAAC: options.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: MVideoFullLight
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  videoInputPath: string
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  resolution: VideoResolution
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  copyCodecs: boolean
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  isPortraitMode: boolean
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  job?: Job
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}) {
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  return generateHlsPlaylistCommon({
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    video: options.video,
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    resolution: options.resolution,
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    copyCodecs: options.copyCodecs,
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    isPortraitMode: options.isPortraitMode,
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    inputPath: options.videoInputPath,
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    type: 'hls' as 'hls',
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    job: options.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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  outputPath: string
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) {
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  const stats = await stat(transcodingPath)
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  const fps = await getVideoFileFPS(transcodingPath)
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  const metadata = await getMetadataFromFile(transcodingPath)
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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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  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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}
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async function generateHlsPlaylistCommon (options: {
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  type: 'hls' | 'hls-from-ts'
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  video: MVideoFullLight
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  inputPath: string
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  resolution: VideoResolution
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  copyCodecs?: boolean
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  isAAC?: boolean
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  isPortraitMode: boolean
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  job?: Job
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}) {
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  const { type, video, inputPath, resolution, copyCodecs, isPortraitMode, isAAC, job } = 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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    isPortraitMode,
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    isAAC,
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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 transcode(transcodeOptions)
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  // Create or update the playlist
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  const playlist = await VideoStreamingPlaylistModel.loadOrGenerate(video)
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  if (!playlist.playlistFilename) {
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    playlist.playlistFilename = generateHLSMasterPlaylistFilename(video.isLive)
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  }
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  if (!playlist.segmentsSha256Filename) {
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    playlist.segmentsSha256Filename = generateHlsSha256SegmentsFilename(video.isLive)
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  }
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  playlist.p2pMediaLoaderInfohashes = []
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  playlist.p2pMediaLoaderPeerVersion = P2P_MEDIA_LOADER_PEER_VERSION
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  playlist.type = VideoStreamingPlaylistType.HLS
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  await playlist.save()
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  // Build the new playlist file
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  const extname = extnameUtil(videoFilename)
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  const newVideoFile = new VideoFileModel({
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    resolution,
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    extname,
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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 videoFilePath = VideoPathManager.Instance.getFSVideoFileOutputPath(playlist, newVideoFile)
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  // Move files from tmp transcoded directory to the appropriate place
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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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  const stats = await stat(videoFilePath)
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  newVideoFile.size = stats.size
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  newVideoFile.fps = await getVideoFileFPS(videoFilePath)
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  newVideoFile.metadata = await getMetadataFromFile(videoFilePath)
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  await createTorrentAndSetInfoHash(playlist, newVideoFile)
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  const savedVideoFile = await VideoFileModel.customUpsert(newVideoFile, 'streaming-playlist', undefined)
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  const playlistWithFiles = playlist as MStreamingPlaylistFilesVideo
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  playlistWithFiles.VideoFiles = await playlist.$get('VideoFiles')
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  playlist.assignP2PMediaLoaderInfoHashes(video, playlistWithFiles.VideoFiles)
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  await playlist.save()
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  video.setHLSPlaylist(playlist)
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  await updateMasterHLSPlaylist(video, playlistWithFiles)
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  await updateSha256VODSegments(video, playlistWithFiles)
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  return { resolutionPlaylistPath, videoFile: savedVideoFile }
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}
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