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peertube/server/lib/transcoding/transcoding.ts
Chocobozzz 7b6b445d91
Regenerate video filenames on transcoding
In particular when using manual transcoding, to invalidate potential
HTTP caches in front of peertube
2022-07-25 10:57:16 +02:00

389 lines
13 KiB
TypeScript

import { Job } from 'bull'
import { copyFile, ensureDir, move, remove, stat } from 'fs-extra'
import { basename, extname as extnameUtil, join } from 'path'
import { toEven } from '@server/helpers/core-utils'
import { retryTransactionWrapper } from '@server/helpers/database-utils'
import { createTorrentAndSetInfoHash } from '@server/helpers/webtorrent'
import { sequelizeTypescript } from '@server/initializers/database'
import { MStreamingPlaylistFilesVideo, MVideo, MVideoFile, MVideoFullLight } from '@server/types/models'
import { VideoResolution, VideoStorage } from '../../../shared/models/videos'
import { VideoStreamingPlaylistType } from '../../../shared/models/videos/video-streaming-playlist.type'
import {
buildFileMetadata,
canDoQuickTranscode,
getVideoStreamDuration,
getVideoStreamFPS,
transcodeVOD,
TranscodeVODOptions,
TranscodeVODOptionsType
} from '../../helpers/ffmpeg'
import { CONFIG } from '../../initializers/config'
import { P2P_MEDIA_LOADER_PEER_VERSION } from '../../initializers/constants'
import { VideoFileModel } from '../../models/video/video-file'
import { VideoStreamingPlaylistModel } from '../../models/video/video-streaming-playlist'
import { updateMasterHLSPlaylist, updateSha256VODSegments } from '../hls'
import {
generateHLSMasterPlaylistFilename,
generateHlsSha256SegmentsFilename,
generateHLSVideoFilename,
generateWebTorrentVideoFilename,
getHlsResolutionPlaylistFilename
} from '../paths'
import { VideoPathManager } from '../video-path-manager'
import { VideoTranscodingProfilesManager } from './default-transcoding-profiles'
/**
*
* Functions that run transcoding functions, update the database, cleanup files, create torrent files...
* Mainly called by the job queue
*
*/
// Optimize the original video file and replace it. The resolution is not changed.
function optimizeOriginalVideofile (video: MVideoFullLight, inputVideoFile: MVideoFile, job?: Job) {
const transcodeDirectory = CONFIG.STORAGE.TMP_DIR
const newExtname = '.mp4'
return VideoPathManager.Instance.makeAvailableVideoFile(inputVideoFile.withVideoOrPlaylist(video), async videoInputPath => {
const videoTranscodedPath = join(transcodeDirectory, video.id + '-transcoded' + newExtname)
const transcodeType: TranscodeVODOptionsType = await canDoQuickTranscode(videoInputPath)
? 'quick-transcode'
: 'video'
const resolution = toEven(inputVideoFile.resolution)
const transcodeOptions: TranscodeVODOptions = {
type: transcodeType,
inputPath: videoInputPath,
outputPath: videoTranscodedPath,
availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
profile: CONFIG.TRANSCODING.PROFILE,
resolution,
job
}
// Could be very long!
await transcodeVOD(transcodeOptions)
// Important to do this before getVideoFilename() to take in account the new filename
inputVideoFile.extname = newExtname
inputVideoFile.filename = generateWebTorrentVideoFilename(resolution, newExtname)
inputVideoFile.storage = VideoStorage.FILE_SYSTEM
const videoOutputPath = VideoPathManager.Instance.getFSVideoFileOutputPath(video, inputVideoFile)
const { videoFile } = await onWebTorrentVideoFileTranscoding(video, inputVideoFile, videoTranscodedPath, videoOutputPath)
await remove(videoInputPath)
return { transcodeType, videoFile }
})
}
// Transcode the original video file to a lower resolution
// We are sure it's x264 in mp4 because optimizeOriginalVideofile was already executed
function transcodeNewWebTorrentResolution (video: MVideoFullLight, resolution: VideoResolution, isPortrait: boolean, job: Job) {
const transcodeDirectory = CONFIG.STORAGE.TMP_DIR
const extname = '.mp4'
return VideoPathManager.Instance.makeAvailableVideoFile(video.getMaxQualityFile().withVideoOrPlaylist(video), async videoInputPath => {
const newVideoFile = new VideoFileModel({
resolution,
extname,
filename: generateWebTorrentVideoFilename(resolution, extname),
size: 0,
videoId: video.id
})
const videoOutputPath = VideoPathManager.Instance.getFSVideoFileOutputPath(video, newVideoFile)
const videoTranscodedPath = join(transcodeDirectory, newVideoFile.filename)
const transcodeOptions = resolution === VideoResolution.H_NOVIDEO
? {
type: 'only-audio' as 'only-audio',
inputPath: videoInputPath,
outputPath: videoTranscodedPath,
availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
profile: CONFIG.TRANSCODING.PROFILE,
resolution,
job
}
: {
type: 'video' as 'video',
inputPath: videoInputPath,
outputPath: videoTranscodedPath,
availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
profile: CONFIG.TRANSCODING.PROFILE,
resolution,
isPortraitMode: isPortrait,
job
}
await transcodeVOD(transcodeOptions)
return onWebTorrentVideoFileTranscoding(video, newVideoFile, videoTranscodedPath, videoOutputPath)
})
}
// Merge an image with an audio file to create a video
function mergeAudioVideofile (video: MVideoFullLight, resolution: VideoResolution, job: Job) {
const transcodeDirectory = CONFIG.STORAGE.TMP_DIR
const newExtname = '.mp4'
const inputVideoFile = video.getMinQualityFile()
return VideoPathManager.Instance.makeAvailableVideoFile(inputVideoFile.withVideoOrPlaylist(video), async audioInputPath => {
const videoTranscodedPath = join(transcodeDirectory, video.id + '-transcoded' + newExtname)
// If the user updates the video preview during transcoding
const previewPath = video.getPreview().getPath()
const tmpPreviewPath = join(CONFIG.STORAGE.TMP_DIR, basename(previewPath))
await copyFile(previewPath, tmpPreviewPath)
const transcodeOptions = {
type: 'merge-audio' as 'merge-audio',
inputPath: tmpPreviewPath,
outputPath: videoTranscodedPath,
availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
profile: CONFIG.TRANSCODING.PROFILE,
audioPath: audioInputPath,
resolution,
job
}
try {
await transcodeVOD(transcodeOptions)
await remove(audioInputPath)
await remove(tmpPreviewPath)
} catch (err) {
await remove(tmpPreviewPath)
throw err
}
// Important to do this before getVideoFilename() to take in account the new file extension
inputVideoFile.extname = newExtname
inputVideoFile.resolution = resolution
inputVideoFile.filename = generateWebTorrentVideoFilename(inputVideoFile.resolution, newExtname)
const videoOutputPath = VideoPathManager.Instance.getFSVideoFileOutputPath(video, inputVideoFile)
// ffmpeg generated a new video file, so update the video duration
// See https://trac.ffmpeg.org/ticket/5456
video.duration = await getVideoStreamDuration(videoTranscodedPath)
await video.save()
return onWebTorrentVideoFileTranscoding(video, inputVideoFile, videoTranscodedPath, videoOutputPath)
})
}
// Concat TS segments from a live video to a fragmented mp4 HLS playlist
async function generateHlsPlaylistResolutionFromTS (options: {
video: MVideo
concatenatedTsFilePath: string
resolution: VideoResolution
isPortraitMode: boolean
isAAC: boolean
}) {
return generateHlsPlaylistCommon({
video: options.video,
resolution: options.resolution,
isPortraitMode: options.isPortraitMode,
inputPath: options.concatenatedTsFilePath,
type: 'hls-from-ts' as 'hls-from-ts',
isAAC: options.isAAC
})
}
// Generate an HLS playlist from an input file, and update the master playlist
function generateHlsPlaylistResolution (options: {
video: MVideo
videoInputPath: string
resolution: VideoResolution
copyCodecs: boolean
isPortraitMode: boolean
job?: Job
}) {
return generateHlsPlaylistCommon({
video: options.video,
resolution: options.resolution,
copyCodecs: options.copyCodecs,
isPortraitMode: options.isPortraitMode,
inputPath: options.videoInputPath,
type: 'hls' as 'hls',
job: options.job
})
}
// ---------------------------------------------------------------------------
export {
generateHlsPlaylistResolution,
generateHlsPlaylistResolutionFromTS,
optimizeOriginalVideofile,
transcodeNewWebTorrentResolution,
mergeAudioVideofile
}
// ---------------------------------------------------------------------------
async function onWebTorrentVideoFileTranscoding (
video: MVideoFullLight,
videoFile: MVideoFile,
transcodingPath: string,
outputPath: string
) {
const stats = await stat(transcodingPath)
const fps = await getVideoStreamFPS(transcodingPath)
const metadata = await buildFileMetadata(transcodingPath)
await move(transcodingPath, outputPath, { overwrite: true })
videoFile.size = stats.size
videoFile.fps = fps
videoFile.metadata = metadata
await createTorrentAndSetInfoHash(video, videoFile)
const oldFile = await VideoFileModel.loadWebTorrentFile({ videoId: video.id, fps: videoFile.fps, resolution: videoFile.resolution })
if (oldFile) await video.removeWebTorrentFileAndTorrent(oldFile)
await VideoFileModel.customUpsert(videoFile, 'video', undefined)
video.VideoFiles = await video.$get('VideoFiles')
return { video, videoFile }
}
async function generateHlsPlaylistCommon (options: {
type: 'hls' | 'hls-from-ts'
video: MVideo
inputPath: string
resolution: VideoResolution
copyCodecs?: boolean
isAAC?: boolean
isPortraitMode: boolean
job?: Job
}) {
const { type, video, inputPath, resolution, copyCodecs, isPortraitMode, isAAC, job } = options
const transcodeDirectory = CONFIG.STORAGE.TMP_DIR
const videoTranscodedBasePath = join(transcodeDirectory, type)
await ensureDir(videoTranscodedBasePath)
const videoFilename = generateHLSVideoFilename(resolution)
const resolutionPlaylistFilename = getHlsResolutionPlaylistFilename(videoFilename)
const resolutionPlaylistFileTranscodePath = join(videoTranscodedBasePath, resolutionPlaylistFilename)
const transcodeOptions = {
type,
inputPath,
outputPath: resolutionPlaylistFileTranscodePath,
availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
profile: CONFIG.TRANSCODING.PROFILE,
resolution,
copyCodecs,
isPortraitMode,
isAAC,
hlsPlaylist: {
videoFilename
},
job
}
await transcodeVOD(transcodeOptions)
// Create or update the playlist
const { playlist, oldPlaylistFilename, oldSegmentsSha256Filename } = await retryTransactionWrapper(() => {
return sequelizeTypescript.transaction(async transaction => {
const playlist = await VideoStreamingPlaylistModel.loadOrGenerate(video, transaction)
const oldPlaylistFilename = playlist.playlistFilename
const oldSegmentsSha256Filename = playlist.segmentsSha256Filename
playlist.playlistFilename = generateHLSMasterPlaylistFilename(video.isLive)
playlist.segmentsSha256Filename = generateHlsSha256SegmentsFilename(video.isLive)
playlist.p2pMediaLoaderInfohashes = []
playlist.p2pMediaLoaderPeerVersion = P2P_MEDIA_LOADER_PEER_VERSION
playlist.type = VideoStreamingPlaylistType.HLS
await playlist.save({ transaction })
return { playlist, oldPlaylistFilename, oldSegmentsSha256Filename }
})
})
if (oldPlaylistFilename) await video.removeStreamingPlaylistFile(playlist, oldPlaylistFilename)
if (oldSegmentsSha256Filename) await video.removeStreamingPlaylistFile(playlist, oldSegmentsSha256Filename)
// Build the new playlist file
const extname = extnameUtil(videoFilename)
const newVideoFile = new VideoFileModel({
resolution,
extname,
size: 0,
filename: videoFilename,
fps: -1,
videoStreamingPlaylistId: playlist.id
})
const videoFilePath = VideoPathManager.Instance.getFSVideoFileOutputPath(playlist, newVideoFile)
// Move files from tmp transcoded directory to the appropriate place
await ensureDir(VideoPathManager.Instance.getFSHLSOutputPath(video))
// Move playlist file
const resolutionPlaylistPath = VideoPathManager.Instance.getFSHLSOutputPath(video, resolutionPlaylistFilename)
await move(resolutionPlaylistFileTranscodePath, resolutionPlaylistPath, { overwrite: true })
// Move video file
await move(join(videoTranscodedBasePath, videoFilename), videoFilePath, { overwrite: true })
const stats = await stat(videoFilePath)
newVideoFile.size = stats.size
newVideoFile.fps = await getVideoStreamFPS(videoFilePath)
newVideoFile.metadata = await buildFileMetadata(videoFilePath)
await createTorrentAndSetInfoHash(playlist, newVideoFile)
const oldFile = await VideoFileModel.loadHLSFile({ playlistId: playlist.id, fps: newVideoFile.fps, resolution: newVideoFile.resolution })
if (oldFile) await video.removeStreamingPlaylistVideoFile(playlist, oldFile)
const savedVideoFile = await VideoFileModel.customUpsert(newVideoFile, 'streaming-playlist', undefined)
const playlistWithFiles = playlist as MStreamingPlaylistFilesVideo
playlistWithFiles.VideoFiles = await playlist.$get('VideoFiles')
playlist.assignP2PMediaLoaderInfoHashes(video, playlistWithFiles.VideoFiles)
playlist.storage = VideoStorage.FILE_SYSTEM
await playlist.save()
video.setHLSPlaylist(playlist)
await updateMasterHLSPlaylist(video, playlistWithFiles)
await updateSha256VODSegments(video, playlistWithFiles)
return { resolutionPlaylistPath, videoFile: savedVideoFile }
}