PeerTube/server/core/lib/transcoding/web-transcoding.ts

259 lines
8.2 KiB
TypeScript

import { Job } from 'bullmq'
import { move, remove } from 'fs-extra/esm'
import { copyFile, stat } from 'fs/promises'
import { basename, join } from 'path'
import { VideoStorage } from '@peertube/peertube-models'
import { computeOutputFPS } from '@server/helpers/ffmpeg/index.js'
import { createTorrentAndSetInfoHash } from '@server/helpers/webtorrent.js'
import { VideoModel } from '@server/models/video/video.js'
import { MVideoFile, MVideoFullLight } from '@server/types/models/index.js'
import { ffprobePromise, getVideoStreamDuration, getVideoStreamFPS, TranscodeVODOptionsType } from '@peertube/peertube-ffmpeg'
import { CONFIG } from '../../initializers/config.js'
import { VideoFileModel } from '../../models/video/video-file.js'
import { JobQueue } from '../job-queue/index.js'
import { generateWebVideoFilename } from '../paths.js'
import { buildFileMetadata } from '../video-file.js'
import { VideoPathManager } from '../video-path-manager.js'
import { buildFFmpegVOD } from './shared/index.js'
import { buildOriginalFileResolution } from './transcoding-resolutions.js'
import { buildStoryboardJobIfNeeded } from '../video.js'
// Optimize the original video file and replace it. The resolution is not changed.
export async function optimizeOriginalVideofile (options: {
video: MVideoFullLight
inputVideoFile: MVideoFile
quickTranscode: boolean
job: Job
}) {
const { video, inputVideoFile, quickTranscode, job } = options
const transcodeDirectory = CONFIG.STORAGE.TMP_DIR
const newExtname = '.mp4'
// Will be released by our transcodeVOD function once ffmpeg is ran
const inputFileMutexReleaser = await VideoPathManager.Instance.lockFiles(video.uuid)
try {
await video.reload()
await inputVideoFile.reload()
const fileWithVideoOrPlaylist = inputVideoFile.withVideoOrPlaylist(video)
const result = await VideoPathManager.Instance.makeAvailableVideoFile(fileWithVideoOrPlaylist, async videoInputPath => {
const videoOutputPath = join(transcodeDirectory, video.id + '-transcoded' + newExtname)
const transcodeType: TranscodeVODOptionsType = quickTranscode
? 'quick-transcode'
: 'video'
const resolution = buildOriginalFileResolution(inputVideoFile.resolution)
const fps = computeOutputFPS({ inputFPS: inputVideoFile.fps, resolution })
// Could be very long!
await buildFFmpegVOD(job).transcode({
type: transcodeType,
inputPath: videoInputPath,
outputPath: videoOutputPath,
inputFileMutexReleaser,
resolution,
fps
})
// Important to do this before getVideoFilename() to take in account the new filename
inputVideoFile.resolution = resolution
inputVideoFile.extname = newExtname
inputVideoFile.filename = generateWebVideoFilename(resolution, newExtname)
inputVideoFile.storage = VideoStorage.FILE_SYSTEM
const { videoFile } = await onWebVideoFileTranscoding({
video,
videoFile: inputVideoFile,
videoOutputPath
})
await remove(videoInputPath)
return { transcodeType, videoFile }
})
return result
} finally {
inputFileMutexReleaser()
}
}
// Transcode the original video file to a lower resolution compatible with web browsers
export async function transcodeNewWebVideoResolution (options: {
video: MVideoFullLight
resolution: number
fps: number
job: Job
}) {
const { video: videoArg, resolution, fps, job } = options
const transcodeDirectory = CONFIG.STORAGE.TMP_DIR
const newExtname = '.mp4'
const inputFileMutexReleaser = await VideoPathManager.Instance.lockFiles(videoArg.uuid)
try {
const video = await VideoModel.loadFull(videoArg.uuid)
const file = video.getMaxQualityFile().withVideoOrPlaylist(video)
const result = await VideoPathManager.Instance.makeAvailableVideoFile(file, async videoInputPath => {
const newVideoFile = new VideoFileModel({
resolution,
extname: newExtname,
filename: generateWebVideoFilename(resolution, newExtname),
size: 0,
videoId: video.id
})
const videoOutputPath = join(transcodeDirectory, newVideoFile.filename)
const transcodeOptions = {
type: 'video' as 'video',
inputPath: videoInputPath,
outputPath: videoOutputPath,
inputFileMutexReleaser,
resolution,
fps
}
await buildFFmpegVOD(job).transcode(transcodeOptions)
return onWebVideoFileTranscoding({ video, videoFile: newVideoFile, videoOutputPath })
})
return result
} finally {
inputFileMutexReleaser()
}
}
// Merge an image with an audio file to create a video
export async function mergeAudioVideofile (options: {
video: MVideoFullLight
resolution: number
fps: number
job: Job
}) {
const { video: videoArg, resolution, fps, job } = options
const transcodeDirectory = CONFIG.STORAGE.TMP_DIR
const newExtname = '.mp4'
const inputFileMutexReleaser = await VideoPathManager.Instance.lockFiles(videoArg.uuid)
try {
const video = await VideoModel.loadFull(videoArg.uuid)
const inputVideoFile = video.getMinQualityFile()
const fileWithVideoOrPlaylist = inputVideoFile.withVideoOrPlaylist(video)
const result = await VideoPathManager.Instance.makeAvailableVideoFile(fileWithVideoOrPlaylist, async audioInputPath => {
const videoOutputPath = 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: videoOutputPath,
inputFileMutexReleaser,
audioPath: audioInputPath,
resolution,
fps
}
try {
await buildFFmpegVOD(job).transcode(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 = generateWebVideoFilename(inputVideoFile.resolution, newExtname)
// ffmpeg generated a new video file, so update the video duration
// See https://trac.ffmpeg.org/ticket/5456
video.duration = await getVideoStreamDuration(videoOutputPath)
await video.save()
return onWebVideoFileTranscoding({
video,
videoFile: inputVideoFile,
videoOutputPath,
wasAudioFile: true
})
})
return result
} finally {
inputFileMutexReleaser()
}
}
export async function onWebVideoFileTranscoding (options: {
video: MVideoFullLight
videoFile: MVideoFile
videoOutputPath: string
wasAudioFile?: boolean // default false
}) {
const { video, videoFile, videoOutputPath, wasAudioFile } = options
const mutexReleaser = await VideoPathManager.Instance.lockFiles(video.uuid)
try {
await video.reload()
const outputPath = VideoPathManager.Instance.getFSVideoFileOutputPath(video, videoFile)
const stats = await stat(videoOutputPath)
const probe = await ffprobePromise(videoOutputPath)
const fps = await getVideoStreamFPS(videoOutputPath, probe)
const metadata = await buildFileMetadata(videoOutputPath, probe)
await move(videoOutputPath, outputPath, { overwrite: true })
videoFile.size = stats.size
videoFile.fps = fps
videoFile.metadata = metadata
await createTorrentAndSetInfoHash(video, videoFile)
const oldFile = await VideoFileModel.loadWebVideoFile({ videoId: video.id, fps: videoFile.fps, resolution: videoFile.resolution })
if (oldFile) await video.removeWebVideoFile(oldFile)
await VideoFileModel.customUpsert(videoFile, 'video', undefined)
video.VideoFiles = await video.$get('VideoFiles')
if (wasAudioFile) {
await JobQueue.Instance.createJob(buildStoryboardJobIfNeeded({ video, federate: false }))
}
return { video, videoFile }
} finally {
mutexReleaser()
}
}