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peertube/server/core/lib/video-file.ts
2024-09-16 16:13:41 +02:00

427 lines
13 KiB
TypeScript

import {
FFmpegContainer,
ffprobePromise,
getVideoStreamDimensionsInfo,
getVideoStreamFPS,
hasAudioStream,
hasVideoStream,
isAudioFile
} from '@peertube/peertube-ffmpeg'
import { FileStorage, VideoFileFormatFlag, VideoFileMetadata, VideoFileStream, VideoResolution } from '@peertube/peertube-models'
import { getFileSize, getLowercaseExtension } from '@peertube/peertube-node-utils'
import { getFFmpegCommandWrapperOptions } from '@server/helpers/ffmpeg/ffmpeg-options.js'
import { logger, loggerTagsFactory } from '@server/helpers/logger.js'
import { doRequestAndSaveToFile, generateRequestStream } from '@server/helpers/requests.js'
import { CONFIG } from '@server/initializers/config.js'
import { MIMETYPES, REQUEST_TIMEOUTS } from '@server/initializers/constants.js'
import { VideoFileModel } from '@server/models/video/video-file.js'
import { VideoSourceModel } from '@server/models/video/video-source.js'
import { MVideo, MVideoFile, MVideoId, MVideoThumbnail, MVideoWithAllFiles } from '@server/types/models/index.js'
import { FfprobeData } from 'fluent-ffmpeg'
import { move, remove } from 'fs-extra/esm'
import { Readable, Writable } from 'stream'
import { lTags } from './object-storage/shared/index.js'
import {
getHLSFileReadStream,
getWebVideoFileReadStream,
makeHLSFileAvailable,
makeWebVideoFileAvailable,
storeOriginalVideoFile
} from './object-storage/videos.js'
import { generateHLSVideoFilename, generateWebVideoFilename } from './paths.js'
import { VideoPathManager } from './video-path-manager.js'
export async function buildNewFile (options: {
path: string
mode: 'web-video' | 'hls'
ffprobe?: FfprobeData
}): Promise<MVideoFile> {
const { path, mode, ffprobe: probeArg } = options
const probe = probeArg ?? await ffprobePromise(path)
const size = await getFileSize(path)
const videoFile = new VideoFileModel({
extname: getLowercaseExtension(path),
size,
metadata: await buildFileMetadata(path, probe),
streams: VideoFileStream.NONE,
formatFlags: mode === 'web-video'
? VideoFileFormatFlag.WEB_VIDEO
: VideoFileFormatFlag.FRAGMENTED
})
if (await hasAudioStream(path, probe)) {
videoFile.streams |= VideoFileStream.AUDIO
}
if (await hasVideoStream(path, probe)) {
videoFile.streams |= VideoFileStream.VIDEO
}
if (await isAudioFile(path, probe)) {
videoFile.fps = 0
videoFile.resolution = VideoResolution.H_NOVIDEO
videoFile.width = 0
videoFile.height = 0
} else {
const dimensions = await getVideoStreamDimensionsInfo(path, probe)
videoFile.fps = await getVideoStreamFPS(path, probe)
videoFile.resolution = dimensions.resolution
videoFile.width = dimensions.width
videoFile.height = dimensions.height
}
videoFile.filename = mode === 'web-video'
? generateWebVideoFilename(videoFile.resolution, videoFile.extname)
: generateHLSVideoFilename(videoFile.resolution)
return videoFile
}
// ---------------------------------------------------------------------------
export async function removeHLSPlaylist (video: MVideoWithAllFiles) {
const hls = video.getHLSPlaylist()
if (!hls) return
const videoFileMutexReleaser = await VideoPathManager.Instance.lockFiles(video.uuid)
try {
await video.removeStreamingPlaylistFiles(hls)
await hls.destroy()
video.VideoStreamingPlaylists = video.VideoStreamingPlaylists.filter(p => p.id !== hls.id)
} finally {
videoFileMutexReleaser()
}
}
export async function removeHLSFile (video: MVideoWithAllFiles, fileToDeleteId: number) {
const hls = video.getHLSPlaylist()
const files = hls.VideoFiles
if (files.length === 1) {
await removeHLSPlaylist(video)
return undefined
}
const videoFileMutexReleaser = await VideoPathManager.Instance.lockFiles(video.uuid)
try {
const toDelete = files.find(f => f.id === fileToDeleteId)
await video.removeStreamingPlaylistVideoFile(video.getHLSPlaylist(), toDelete)
await toDelete.destroy()
hls.VideoFiles = hls.VideoFiles.filter(f => f.id !== toDelete.id)
} finally {
videoFileMutexReleaser()
}
return hls
}
// ---------------------------------------------------------------------------
export async function removeAllWebVideoFiles (video: MVideoWithAllFiles) {
const videoFileMutexReleaser = await VideoPathManager.Instance.lockFiles(video.uuid)
try {
for (const file of video.VideoFiles) {
await video.removeWebVideoFile(file)
await file.destroy()
}
video.VideoFiles = []
} finally {
videoFileMutexReleaser()
}
return video
}
export async function removeWebVideoFile (video: MVideoWithAllFiles, fileToDeleteId: number) {
const files = video.VideoFiles
if (files.length === 1) {
return removeAllWebVideoFiles(video)
}
const videoFileMutexReleaser = await VideoPathManager.Instance.lockFiles(video.uuid)
try {
const toDelete = files.find(f => f.id === fileToDeleteId)
await video.removeWebVideoFile(toDelete)
await toDelete.destroy()
video.VideoFiles = files.filter(f => f.id !== toDelete.id)
} finally {
videoFileMutexReleaser()
}
return video
}
// ---------------------------------------------------------------------------
export async function buildFileMetadata (path: string, existingProbe?: FfprobeData) {
const metadata = existingProbe || await ffprobePromise(path)
return new VideoFileMetadata(metadata)
}
export function getVideoFileMimeType (extname: string, isAudio: boolean) {
return isAudio && extname === '.mp4' // We use .mp4 even for audio file only
? MIMETYPES.AUDIO.EXT_MIMETYPE['.m4a']
: MIMETYPES.VIDEO.EXT_MIMETYPE[extname]
}
// ---------------------------------------------------------------------------
export async function createVideoSource (options: {
inputFilename: string
inputProbe: FfprobeData
inputPath: string
video: MVideoId
createdAt?: Date
}) {
const { inputFilename, inputPath, inputProbe, video, createdAt } = options
const videoSource = new VideoSourceModel({
inputFilename,
videoId: video.id,
createdAt
})
if (inputPath) {
const probe = inputProbe ?? await ffprobePromise(inputPath)
if (await isAudioFile(inputPath, probe)) {
videoSource.fps = 0
videoSource.resolution = VideoResolution.H_NOVIDEO
videoSource.width = 0
videoSource.height = 0
} else {
const dimensions = await getVideoStreamDimensionsInfo(inputPath, probe)
videoSource.fps = await getVideoStreamFPS(inputPath, probe)
videoSource.resolution = dimensions.resolution
videoSource.width = dimensions.width
videoSource.height = dimensions.height
}
videoSource.metadata = await buildFileMetadata(inputPath, probe)
videoSource.size = await getFileSize(inputPath)
}
return videoSource.save()
}
export async function saveNewOriginalFileIfNeeded (video: MVideo, videoFile: MVideoFile) {
if (!CONFIG.TRANSCODING.ORIGINAL_FILE.KEEP) return
const videoSource = await VideoSourceModel.loadLatest(video.id)
// Already have saved an original file
if (!videoSource || videoSource.keptOriginalFilename) return
videoSource.keptOriginalFilename = videoFile.filename
const lTags = loggerTagsFactory(video.uuid)
logger.info(`Storing original video file ${videoSource.keptOriginalFilename} of video ${video.name}`, lTags())
const sourcePath = VideoPathManager.Instance.getFSVideoFileOutputPath(video, videoFile)
if (CONFIG.OBJECT_STORAGE.ENABLED) {
const fileUrl = await storeOriginalVideoFile(sourcePath, videoSource.keptOriginalFilename)
await remove(sourcePath)
videoSource.storage = FileStorage.OBJECT_STORAGE
videoSource.fileUrl = fileUrl
} else {
const destinationPath = VideoPathManager.Instance.getFSOriginalVideoFilePath(videoSource.keptOriginalFilename)
await move(sourcePath, destinationPath)
videoSource.storage = FileStorage.FILE_SYSTEM
}
await videoSource.save()
// Delete previously kept video files
const allSources = await VideoSourceModel.listAll(video.id)
for (const oldSource of allSources) {
if (!oldSource.keptOriginalFilename) continue
if (oldSource.id === videoSource.id) continue
try {
await video.removeOriginalFile(oldSource)
} catch (err) {
logger.error('Cannot delete old original file ' + oldSource.keptOriginalFilename, { err, ...lTags() })
}
}
}
// ---------------------------------------------------------------------------
export async function muxToMergeVideoFiles (options: {
video: MVideoThumbnail
videoFiles: MVideoFile[]
output: Writable
}) {
const { video, videoFiles, output } = options
const inputs: (string | Readable)[] = []
const tmpDestinations: string[] = []
try {
let maxResolution = 0
for (const videoFile of videoFiles) {
if (!videoFile) continue
maxResolution = Math.max(maxResolution, videoFile.resolution)
const { input, isTmpDestination } = await buildMuxInput(video, videoFile)
inputs.push(input)
if (isTmpDestination === true) tmpDestinations.push(input)
}
// Include cover to audio file?
const { coverPath, isTmpDestination } = maxResolution === 0
? await buildCoverInput(video)
: { coverPath: undefined, isTmpDestination: false }
if (coverPath && isTmpDestination) tmpDestinations.push(coverPath)
const inputsToLog = inputs.map(i => {
if (typeof i === 'string') return i
return 'ReadableStream'
})
logger.info(`Muxing files for video ${video.url}`, { inputs: inputsToLog, ...lTags(video.uuid) })
try {
await new FFmpegContainer(getFFmpegCommandWrapperOptions('vod')).mergeInputs({
inputs,
output,
logError: false,
// Include a cover if this is an audio file
coverPath
})
logger.info(`Mux ended for video ${video.url}`, { inputs: inputsToLog, ...lTags(video.uuid) })
} catch (err) {
const message = err?.message || ''
if (message.includes('Output stream closed')) {
logger.info(`Client aborted mux for video ${video.url}`, lTags(video.uuid))
return
}
logger.warn(`Cannot mux files of video ${video.url}`, { err, inputs: inputsToLog, ...lTags(video.uuid) })
throw err
}
} finally {
for (const destination of tmpDestinations) {
await remove(destination)
}
}
}
async function buildMuxInput (
video: MVideo,
videoFile: MVideoFile
): Promise<{ input: Readable, isTmpDestination: false } | { input: string, isTmpDestination: boolean }> {
// ---------------------------------------------------------------------------
// Remote
// ---------------------------------------------------------------------------
if (video.remote === true) {
const timeout = REQUEST_TIMEOUTS.VIDEO_FILE
const videoSizeKB = videoFile.size / 1000
const bodyKBLimit = videoSizeKB + 0.1 * videoSizeKB
// FFmpeg doesn't support multiple input streams, so download the audio file on disk directly
if (videoFile.isAudio()) {
const destination = VideoPathManager.Instance.buildTMPDestination(videoFile.filename)
// > 1GB
if (bodyKBLimit > 1000 * 1000) {
throw new Error('Cannot download remote video file > 1GB')
}
await doRequestAndSaveToFile(videoFile.fileUrl, destination, { timeout, bodyKBLimit })
return { input: destination, isTmpDestination: true }
}
return { input: generateRequestStream(videoFile.fileUrl, { timeout, bodyKBLimit }), isTmpDestination: false }
}
// ---------------------------------------------------------------------------
// Local on FS
// ---------------------------------------------------------------------------
if (videoFile.storage === FileStorage.FILE_SYSTEM) {
return { input: VideoPathManager.Instance.getFSVideoFileOutputPath(video, videoFile), isTmpDestination: false }
}
// ---------------------------------------------------------------------------
// Local on object storage
// ---------------------------------------------------------------------------
// FFmpeg doesn't support multiple input streams, so download the audio file on disk directly
if (videoFile.hasAudio() && !videoFile.hasVideo()) {
const destination = VideoPathManager.Instance.buildTMPDestination(videoFile.filename)
if (videoFile.isHLS()) {
await makeHLSFileAvailable(video.getHLSPlaylist(), videoFile.filename, destination)
} else {
await makeWebVideoFileAvailable(videoFile.filename, destination)
}
return { input: destination, isTmpDestination: true }
}
if (videoFile.isHLS()) {
const { stream } = await getHLSFileReadStream({
playlist: video.getHLSPlaylist().withVideo(video),
filename: videoFile.filename,
rangeHeader: undefined
})
return { input: stream, isTmpDestination: false }
}
// Web video
const { stream } = await getWebVideoFileReadStream({
filename: videoFile.filename,
rangeHeader: undefined
})
return { input: stream, isTmpDestination: false }
}
async function buildCoverInput (video: MVideoThumbnail) {
const preview = video.getPreview()
if (video.isOwned()) return { coverPath: preview?.getPath() }
if (preview.fileUrl) {
const destination = VideoPathManager.Instance.buildTMPDestination(preview.filename)
await doRequestAndSaveToFile(preview.fileUrl, destination)
return { coverPath: destination, isTmpDestination: true }
}
return { coverPath: undefined }
}