Add basic video editor support

1 files changed, 0 insertions, 781 deletions

diff --git a/server/helpers/ffmpeg-utils.ts b/server/helpers/ffmpeg-utils.ts
deleted file mode 100644
index 78ee5fa7f..000000000
--- a/server/helpers/ffmpeg-utils.ts
+++ /dev/null
@@ -1,781 +0,0 @@
-import { Job } from 'bull'
-import ffmpeg, { FfmpegCommand, FilterSpecification, getAvailableEncoders } from 'fluent-ffmpeg'
-import { readFile, remove, writeFile } from 'fs-extra'
-import { dirname, join } from 'path'
-import { FFMPEG_NICE, VIDEO_LIVE } from '@server/initializers/constants'
-import { pick } from '@shared/core-utils'
-import {
-  AvailableEncoders,
-  EncoderOptions,
-  EncoderOptionsBuilder,
-  EncoderOptionsBuilderParams,
-  EncoderProfile,
-  VideoResolution
-} from '../../shared/models/videos'
-import { CONFIG } from '../initializers/config'
-import { execPromise, promisify0 } from './core-utils'
-import { computeFPS, ffprobePromise, getAudioStream, getVideoFileBitrate, getVideoFileFPS, getVideoFileResolution } from './ffprobe-utils'
-import { processImage } from './image-utils'
-import { logger, loggerTagsFactory } from './logger'
-
-const lTags = loggerTagsFactory('ffmpeg')
-
-/**
- *
- * Functions that run transcoding/muxing ffmpeg processes
- * Mainly called by lib/video-transcoding.ts and lib/live-manager.ts
- *
- */
-
-// ---------------------------------------------------------------------------
-// Encoder options
-// ---------------------------------------------------------------------------
-
-type StreamType = 'audio' | 'video'
-
-// ---------------------------------------------------------------------------
-// Encoders support
-// ---------------------------------------------------------------------------
-
-// Detect supported encoders by ffmpeg
-let supportedEncoders: Map<string, boolean>
-async function checkFFmpegEncoders (peertubeAvailableEncoders: AvailableEncoders): Promise<Map<string, boolean>> {
-  if (supportedEncoders !== undefined) {
-    return supportedEncoders
-  }
-
-  const getAvailableEncodersPromise = promisify0(getAvailableEncoders)
-  const availableFFmpegEncoders = await getAvailableEncodersPromise()
-
-  const searchEncoders = new Set<string>()
-  for (const type of [ 'live', 'vod' ]) {
-    for (const streamType of [ 'audio', 'video' ]) {
-      for (const encoder of peertubeAvailableEncoders.encodersToTry[type][streamType]) {
-        searchEncoders.add(encoder)
-      }
-    }
-  }
-
-  supportedEncoders = new Map<string, boolean>()
-
-  for (const searchEncoder of searchEncoders) {
-    supportedEncoders.set(searchEncoder, availableFFmpegEncoders[searchEncoder] !== undefined)
-  }
-
-  logger.info('Built supported ffmpeg encoders.', { supportedEncoders, searchEncoders, ...lTags() })
-
-  return supportedEncoders
-}
-
-function resetSupportedEncoders () {
-  supportedEncoders = undefined
-}
-
-// ---------------------------------------------------------------------------
-// Image manipulation
-// ---------------------------------------------------------------------------
-
-function convertWebPToJPG (path: string, destination: string): Promise<void> {
-  const command = ffmpeg(path, { niceness: FFMPEG_NICE.THUMBNAIL })
-    .output(destination)
-
-  return runCommand({ command, silent: true })
-}
-
-function processGIF (
-  path: string,
-  destination: string,
-  newSize: { width: number, height: number }
-): Promise<void> {
-  const command = ffmpeg(path, { niceness: FFMPEG_NICE.THUMBNAIL })
-    .fps(20)
-    .size(`${newSize.width}x${newSize.height}`)
-    .output(destination)
-
-  return runCommand({ command })
-}
-
-async function generateImageFromVideoFile (fromPath: string, folder: string, imageName: string, size: { width: number, height: number }) {
-  const pendingImageName = 'pending-' + imageName
-
-  const options = {
-    filename: pendingImageName,
-    count: 1,
-    folder
-  }
-
-  const pendingImagePath = join(folder, pendingImageName)
-
-  try {
-    await new Promise<string>((res, rej) => {
-      ffmpeg(fromPath, { niceness: FFMPEG_NICE.THUMBNAIL })
-        .on('error', rej)
-        .on('end', () => res(imageName))
-        .thumbnail(options)
-    })
-
-    const destination = join(folder, imageName)
-    await processImage(pendingImagePath, destination, size)
-  } catch (err) {
-    logger.error('Cannot generate image from video %s.', fromPath, { err, ...lTags() })
-
-    try {
-      await remove(pendingImagePath)
-    } catch (err) {
-      logger.debug('Cannot remove pending image path after generation error.', { err, ...lTags() })
-    }
-  }
-}
-
-// ---------------------------------------------------------------------------
-// Transcode meta function
-// ---------------------------------------------------------------------------
-
-type TranscodeOptionsType = 'hls' | 'hls-from-ts' | 'quick-transcode' | 'video' | 'merge-audio' | 'only-audio'
-
-interface BaseTranscodeOptions {
-  type: TranscodeOptionsType
-
-  inputPath: string
-  outputPath: string
-
-  availableEncoders: AvailableEncoders
-  profile: string
-
-  resolution: number
-
-  isPortraitMode?: boolean
-
-  job?: Job
-}
-
-interface HLSTranscodeOptions extends BaseTranscodeOptions {
-  type: 'hls'
-  copyCodecs: boolean
-  hlsPlaylist: {
-    videoFilename: string
-  }
-}
-
-interface HLSFromTSTranscodeOptions extends BaseTranscodeOptions {
-  type: 'hls-from-ts'
-
-  isAAC: boolean
-
-  hlsPlaylist: {
-    videoFilename: string
-  }
-}
-
-interface QuickTranscodeOptions extends BaseTranscodeOptions {
-  type: 'quick-transcode'
-}
-
-interface VideoTranscodeOptions extends BaseTranscodeOptions {
-  type: 'video'
-}
-
-interface MergeAudioTranscodeOptions extends BaseTranscodeOptions {
-  type: 'merge-audio'
-  audioPath: string
-}
-
-interface OnlyAudioTranscodeOptions extends BaseTranscodeOptions {
-  type: 'only-audio'
-}
-
-type TranscodeOptions =
-  HLSTranscodeOptions
-  | HLSFromTSTranscodeOptions
-  | VideoTranscodeOptions
-  | MergeAudioTranscodeOptions
-  | OnlyAudioTranscodeOptions
-  | QuickTranscodeOptions
-
-const builders: {
-  [ type in TranscodeOptionsType ]: (c: FfmpegCommand, o?: TranscodeOptions) => Promise<FfmpegCommand> | FfmpegCommand
-} = {
-  'quick-transcode': buildQuickTranscodeCommand,
-  'hls': buildHLSVODCommand,
-  'hls-from-ts': buildHLSVODFromTSCommand,
-  'merge-audio': buildAudioMergeCommand,
-  'only-audio': buildOnlyAudioCommand,
-  'video': buildx264VODCommand
-}
-
-async function transcode (options: TranscodeOptions) {
-  logger.debug('Will run transcode.', { options, ...lTags() })
-
-  let command = getFFmpeg(options.inputPath, 'vod')
-    .output(options.outputPath)
-
-  command = await builders[options.type](command, options)
-
-  await runCommand({ command, job: options.job })
-
-  await fixHLSPlaylistIfNeeded(options)
-}
-
-// ---------------------------------------------------------------------------
-// Live muxing/transcoding functions
-// ---------------------------------------------------------------------------
-
-async function getLiveTranscodingCommand (options: {
-  inputUrl: string
-
-  outPath: string
-  masterPlaylistName: string
-
-  resolutions: number[]
-
-  // Input information
-  fps: number
-  bitrate: number
-  ratio: number
-
-  availableEncoders: AvailableEncoders
-  profile: string
-}) {
-  const { inputUrl, outPath, resolutions, fps, bitrate, availableEncoders, profile, masterPlaylistName, ratio } = options
-
-  const command = getFFmpeg(inputUrl, 'live')
-
-  const varStreamMap: string[] = []
-
-  const complexFilter: FilterSpecification[] = [
-    {
-      inputs: '[v:0]',
-      filter: 'split',
-      options: resolutions.length,
-      outputs: resolutions.map(r => `vtemp${r}`)
-    }
-  ]
-
-  command.outputOption('-sc_threshold 0')
-
-  addDefaultEncoderGlobalParams({ command })
-
-  for (let i = 0; i < resolutions.length; i++) {
-    const resolution = resolutions[i]
-    const resolutionFPS = computeFPS(fps, resolution)
-
-    const baseEncoderBuilderParams = {
-      input: inputUrl,
-
-      availableEncoders,
-      profile,
-
-      inputBitrate: bitrate,
-      inputRatio: ratio,
-
-      resolution,
-      fps: resolutionFPS,
-
-      streamNum: i,
-      videoType: 'live' as 'live'
-    }
-
-    {
-      const streamType: StreamType = 'video'
-      const builderResult = await getEncoderBuilderResult({ ...baseEncoderBuilderParams, streamType })
-      if (!builderResult) {
-        throw new Error('No available live video encoder found')
-      }
-
-      command.outputOption(`-map [vout${resolution}]`)
-
-      addDefaultEncoderParams({ command, encoder: builderResult.encoder, fps: resolutionFPS, streamNum: i })
-
-      logger.debug(
-        'Apply ffmpeg live video params from %s using %s profile.', builderResult.encoder, profile,
-        { builderResult, fps: resolutionFPS, resolution, ...lTags() }
-      )
-
-      command.outputOption(`${buildStreamSuffix('-c:v', i)} ${builderResult.encoder}`)
-      applyEncoderOptions(command, builderResult.result)
-
-      complexFilter.push({
-        inputs: `vtemp${resolution}`,
-        filter: getScaleFilter(builderResult.result),
-        options: `w=-2:h=${resolution}`,
-        outputs: `vout${resolution}`
-      })
-    }
-
-    {
-      const streamType: StreamType = 'audio'
-      const builderResult = await getEncoderBuilderResult({ ...baseEncoderBuilderParams, streamType })
-      if (!builderResult) {
-        throw new Error('No available live audio encoder found')
-      }
-
-      command.outputOption('-map a:0')
-
-      addDefaultEncoderParams({ command, encoder: builderResult.encoder, fps: resolutionFPS, streamNum: i })
-
-      logger.debug(
-        'Apply ffmpeg live audio params from %s using %s profile.', builderResult.encoder, profile,
-        { builderResult, fps: resolutionFPS, resolution, ...lTags() }
-      )
-
-      command.outputOption(`${buildStreamSuffix('-c:a', i)} ${builderResult.encoder}`)
-      applyEncoderOptions(command, builderResult.result)
-    }
-
-    varStreamMap.push(`v:${i},a:${i}`)
-  }
-
-  command.complexFilter(complexFilter)
-
-  addDefaultLiveHLSParams(command, outPath, masterPlaylistName)
-
-  command.outputOption('-var_stream_map', varStreamMap.join(' '))
-
-  return command
-}
-
-function getLiveMuxingCommand (inputUrl: string, outPath: string, masterPlaylistName: string) {
-  const command = getFFmpeg(inputUrl, 'live')
-
-  command.outputOption('-c:v copy')
-  command.outputOption('-c:a copy')
-  command.outputOption('-map 0:a?')
-  command.outputOption('-map 0:v?')
-
-  addDefaultLiveHLSParams(command, outPath, masterPlaylistName)
-
-  return command
-}
-
-function buildStreamSuffix (base: string, streamNum?: number) {
-  if (streamNum !== undefined) {
-    return `${base}:${streamNum}`
-  }
-
-  return base
-}
-
-// ---------------------------------------------------------------------------
-// Default options
-// ---------------------------------------------------------------------------
-
-function addDefaultEncoderGlobalParams (options: {
-  command: FfmpegCommand
-}) {
-  const { command } = options
-
-  // avoid issues when transcoding some files: https://trac.ffmpeg.org/ticket/6375
-  command.outputOption('-max_muxing_queue_size 1024')
-         // strip all metadata
-         .outputOption('-map_metadata -1')
-         // allows import of source material with incompatible pixel formats (e.g. MJPEG video)
-         .outputOption('-pix_fmt yuv420p')
-}
-
-function addDefaultEncoderParams (options: {
-  command: FfmpegCommand
-  encoder: 'libx264' | string
-  streamNum?: number
-  fps?: number
-}) {
-  const { command, encoder, fps, streamNum } = options
-
-  if (encoder === 'libx264') {
-    // 3.1 is the minimal resource allocation for our highest supported resolution
-    command.outputOption(buildStreamSuffix('-level:v', streamNum) + ' 3.1')
-
-    if (fps) {
-      // Keyframe interval of 2 seconds for faster seeking and resolution switching.
-      // https://streaminglearningcenter.com/blogs/whats-the-right-keyframe-interval.html
-      // https://superuser.com/a/908325
-      command.outputOption(buildStreamSuffix('-g:v', streamNum) + ' ' + (fps * 2))
-    }
-  }
-}
-
-function addDefaultLiveHLSParams (command: FfmpegCommand, outPath: string, masterPlaylistName: string) {
-  command.outputOption('-hls_time ' + VIDEO_LIVE.SEGMENT_TIME_SECONDS)
-  command.outputOption('-hls_list_size ' + VIDEO_LIVE.SEGMENTS_LIST_SIZE)
-  command.outputOption('-hls_flags delete_segments+independent_segments')
-  command.outputOption(`-hls_segment_filename ${join(outPath, '%v-%06d.ts')}`)
-  command.outputOption('-master_pl_name ' + masterPlaylistName)
-  command.outputOption(`-f hls`)
-
-  command.output(join(outPath, '%v.m3u8'))
-}
-
-// ---------------------------------------------------------------------------
-// Transcode VOD command builders
-// ---------------------------------------------------------------------------
-
-async function buildx264VODCommand (command: FfmpegCommand, options: TranscodeOptions) {
-  let fps = await getVideoFileFPS(options.inputPath)
-  fps = computeFPS(fps, options.resolution)
-
-  let scaleFilterValue: string
-
-  if (options.resolution !== undefined) {
-    scaleFilterValue = options.isPortraitMode === true
-      ? `w=${options.resolution}:h=-2`
-      : `w=-2:h=${options.resolution}`
-  }
-
-  command = await presetVideo({ command, input: options.inputPath, transcodeOptions: options, fps, scaleFilterValue })
-
-  return command
-}
-
-async function buildAudioMergeCommand (command: FfmpegCommand, options: MergeAudioTranscodeOptions) {
-  command = command.loop(undefined)
-
-  const scaleFilterValue = getScaleCleanerValue()
-  command = await presetVideo({ command, input: options.audioPath, transcodeOptions: options, scaleFilterValue })
-
-  command.outputOption('-preset:v veryfast')
-
-  command = command.input(options.audioPath)
-                   .outputOption('-tune stillimage')
-                   .outputOption('-shortest')
-
-  return command
-}
-
-function buildOnlyAudioCommand (command: FfmpegCommand, _options: OnlyAudioTranscodeOptions) {
-  command = presetOnlyAudio(command)
-
-  return command
-}
-
-function buildQuickTranscodeCommand (command: FfmpegCommand) {
-  command = presetCopy(command)
-
-  command = command.outputOption('-map_metadata -1') // strip all metadata
-                   .outputOption('-movflags faststart')
-
-  return command
-}
-
-function addCommonHLSVODCommandOptions (command: FfmpegCommand, outputPath: string) {
-  return command.outputOption('-hls_time 4')
-                .outputOption('-hls_list_size 0')
-                .outputOption('-hls_playlist_type vod')
-                .outputOption('-hls_segment_filename ' + outputPath)
-                .outputOption('-hls_segment_type fmp4')
-                .outputOption('-f hls')
-                .outputOption('-hls_flags single_file')
-}
-
-async function buildHLSVODCommand (command: FfmpegCommand, options: HLSTranscodeOptions) {
-  const videoPath = getHLSVideoPath(options)
-
-  if (options.copyCodecs) command = presetCopy(command)
-  else if (options.resolution === VideoResolution.H_NOVIDEO) command = presetOnlyAudio(command)
-  else command = await buildx264VODCommand(command, options)
-
-  addCommonHLSVODCommandOptions(command, videoPath)
-
-  return command
-}
-
-function buildHLSVODFromTSCommand (command: FfmpegCommand, options: HLSFromTSTranscodeOptions) {
-  const videoPath = getHLSVideoPath(options)
-
-  command.outputOption('-c copy')
-
-  if (options.isAAC) {
-    // Required for example when copying an AAC stream from an MPEG-TS
-    // Since it's a bitstream filter, we don't need to reencode the audio
-    command.outputOption('-bsf:a aac_adtstoasc')
-  }
-
-  addCommonHLSVODCommandOptions(command, videoPath)
-
-  return command
-}
-
-async function fixHLSPlaylistIfNeeded (options: TranscodeOptions) {
-  if (options.type !== 'hls' && options.type !== 'hls-from-ts') return
-
-  const fileContent = await readFile(options.outputPath)
-
-  const videoFileName = options.hlsPlaylist.videoFilename
-  const videoFilePath = getHLSVideoPath(options)
-
-  // Fix wrong mapping with some ffmpeg versions
-  const newContent = fileContent.toString()
-                                .replace(`#EXT-X-MAP:URI="${videoFilePath}",`, `#EXT-X-MAP:URI="${videoFileName}",`)
-
-  await writeFile(options.outputPath, newContent)
-}
-
-function getHLSVideoPath (options: HLSTranscodeOptions | HLSFromTSTranscodeOptions) {
-  return `${dirname(options.outputPath)}/${options.hlsPlaylist.videoFilename}`
-}
-
-// ---------------------------------------------------------------------------
-// Transcoding presets
-// ---------------------------------------------------------------------------
-
-// Run encoder builder depending on available encoders
-// Try encoders by priority: if the encoder is available, run the chosen profile or fallback to the default one
-// If the default one does not exist, check the next encoder
-async function getEncoderBuilderResult (options: EncoderOptionsBuilderParams & {
-  streamType: 'video' | 'audio'
-  input: string
-
-  availableEncoders: AvailableEncoders
-  profile: string
-
-  videoType: 'vod' | 'live'
-}) {
-  const { availableEncoders, profile, streamType, videoType } = options
-
-  const encodersToTry = availableEncoders.encodersToTry[videoType][streamType]
-  const encoders = availableEncoders.available[videoType]
-
-  for (const encoder of encodersToTry) {
-    if (!(await checkFFmpegEncoders(availableEncoders)).get(encoder)) {
-      logger.debug('Encoder %s not available in ffmpeg, skipping.', encoder, lTags())
-      continue
-    }
-
-    if (!encoders[encoder]) {
-      logger.debug('Encoder %s not available in peertube encoders, skipping.', encoder, lTags())
-      continue
-    }
-
-    // An object containing available profiles for this encoder
-    const builderProfiles: EncoderProfile<EncoderOptionsBuilder> = encoders[encoder]
-    let builder = builderProfiles[profile]
-
-    if (!builder) {
-      logger.debug('Profile %s for encoder %s not available. Fallback to default.', profile, encoder, lTags())
-      builder = builderProfiles.default
-
-      if (!builder) {
-        logger.debug('Default profile for encoder %s not available. Try next available encoder.', encoder, lTags())
-        continue
-      }
-    }
-
-    const result = await builder(pick(options, [ 'input', 'resolution', 'inputBitrate', 'fps', 'inputRatio', 'streamNum' ]))
-
-    return {
-      result,
-
-      // If we don't have output options, then copy the input stream
-      encoder: result.copy === true
-        ? 'copy'
-        : encoder
-    }
-  }
-
-  return null
-}
-
-async function presetVideo (options: {
-  command: FfmpegCommand
-  input: string
-  transcodeOptions: TranscodeOptions
-  fps?: number
-  scaleFilterValue?: string
-}) {
-  const { command, input, transcodeOptions, fps, scaleFilterValue } = options
-
-  let localCommand = command
-    .format('mp4')
-    .outputOption('-movflags faststart')
-
-  addDefaultEncoderGlobalParams({ command })
-
-  const probe = await ffprobePromise(input)
-
-  // Audio encoder
-  const parsedAudio = await getAudioStream(input, probe)
-  const bitrate = await getVideoFileBitrate(input, probe)
-  const { ratio } = await getVideoFileResolution(input, probe)
-
-  let streamsToProcess: StreamType[] = [ 'audio', 'video' ]
-
-  if (!parsedAudio.audioStream) {
-    localCommand = localCommand.noAudio()
-    streamsToProcess = [ 'video' ]
-  }
-
-  for (const streamType of streamsToProcess) {
-    const { profile, resolution, availableEncoders } = transcodeOptions
-
-    const builderResult = await getEncoderBuilderResult({
-      streamType,
-      input,
-      resolution,
-      availableEncoders,
-      profile,
-      fps,
-      inputBitrate: bitrate,
-      inputRatio: ratio,
-      videoType: 'vod' as 'vod'
-    })
-
-    if (!builderResult) {
-      throw new Error('No available encoder found for stream ' + streamType)
-    }
-
-    logger.debug(
-      'Apply ffmpeg params from %s for %s stream of input %s using %s profile.',
-      builderResult.encoder, streamType, input, profile,
-      { builderResult, resolution, fps, ...lTags() }
-    )
-
-    if (streamType === 'video') {
-      localCommand.videoCodec(builderResult.encoder)
-
-      if (scaleFilterValue) {
-        localCommand.outputOption(`-vf ${getScaleFilter(builderResult.result)}=${scaleFilterValue}`)
-      }
-    } else if (streamType === 'audio') {
-      localCommand.audioCodec(builderResult.encoder)
-    }
-
-    applyEncoderOptions(localCommand, builderResult.result)
-    addDefaultEncoderParams({ command: localCommand, encoder: builderResult.encoder, fps })
-  }
-
-  return localCommand
-}
-
-function presetCopy (command: FfmpegCommand): FfmpegCommand {
-  return command
-    .format('mp4')
-    .videoCodec('copy')
-    .audioCodec('copy')
-}
-
-function presetOnlyAudio (command: FfmpegCommand): FfmpegCommand {
-  return command
-    .format('mp4')
-    .audioCodec('copy')
-    .noVideo()
-}
-
-function applyEncoderOptions (command: FfmpegCommand, options: EncoderOptions): FfmpegCommand {
-  return command
-    .inputOptions(options.inputOptions ?? [])
-    .outputOptions(options.outputOptions ?? [])
-}
-
-function getScaleFilter (options: EncoderOptions): string {
-  if (options.scaleFilter) return options.scaleFilter.name
-
-  return 'scale'
-}
-
-// ---------------------------------------------------------------------------
-// Utils
-// ---------------------------------------------------------------------------
-
-function getFFmpeg (input: string, type: 'live' | 'vod') {
-  // We set cwd explicitly because ffmpeg appears to create temporary files when trancoding which fails in read-only file systems
-  const command = ffmpeg(input, {
-    niceness: type === 'live' ? FFMPEG_NICE.LIVE : FFMPEG_NICE.VOD,
-    cwd: CONFIG.STORAGE.TMP_DIR
-  })
-
-  const threads = type === 'live'
-    ? CONFIG.LIVE.TRANSCODING.THREADS
-    : CONFIG.TRANSCODING.THREADS
-
-  if (threads > 0) {
-    // If we don't set any threads ffmpeg will chose automatically
-    command.outputOption('-threads ' + threads)
-  }
-
-  return command
-}
-
-function getFFmpegVersion () {
-  return new Promise<string>((res, rej) => {
-    (ffmpeg() as any)._getFfmpegPath((err, ffmpegPath) => {
-      if (err) return rej(err)
-      if (!ffmpegPath) return rej(new Error('Could not find ffmpeg path'))
-
-      return execPromise(`${ffmpegPath} -version`)
-        .then(stdout => {
-          const parsed = stdout.match(/ffmpeg version .?(\d+\.\d+(\.\d+)?)/)
-          if (!parsed || !parsed[1]) return rej(new Error(`Could not find ffmpeg version in ${stdout}`))
-
-          // Fix ffmpeg version that does not include patch version (4.4 for example)
-          let version = parsed[1]
-          if (version.match(/^\d+\.\d+$/)) {
-            version += '.0'
-          }
-
-          return res(version)
-        })
-        .catch(err => rej(err))
-    })
-  })
-}
-
-async function runCommand (options: {
-  command: FfmpegCommand
-  silent?: boolean // false
-  job?: Job
-}) {
-  const { command, silent = false, job } = options
-
-  return new Promise<void>((res, rej) => {
-    let shellCommand: string
-
-    command.on('start', cmdline => { shellCommand = cmdline })
-
-    command.on('error', (err, stdout, stderr) => {
-      if (silent !== true) logger.error('Error in ffmpeg.', { stdout, stderr, shellCommand, ...lTags() })
-
-      rej(err)
-    })
-
-    command.on('end', (stdout, stderr) => {
-      logger.debug('FFmpeg command ended.', { stdout, stderr, shellCommand, ...lTags() })
-
-      res()
-    })
-
-    if (job) {
-      command.on('progress', progress => {
-        if (!progress.percent) return
-
-        job.progress(Math.round(progress.percent))
-          .catch(err => logger.warn('Cannot set ffmpeg job progress.', { err, ...lTags() }))
-      })
-    }
-
-    command.run()
-  })
-}
-
-// Avoid "height not divisible by 2" error
-function getScaleCleanerValue () {
-  return 'trunc(iw/2)*2:trunc(ih/2)*2'
-}
-
-// ---------------------------------------------------------------------------
-
-export {
-  getLiveTranscodingCommand,
-  getLiveMuxingCommand,
-  buildStreamSuffix,
-  convertWebPToJPG,
-  processGIF,
-  generateImageFromVideoFile,
-  TranscodeOptions,
-  TranscodeOptionsType,
-  transcode,
-  runCommand,
-  getFFmpegVersion,
-
-  resetSupportedEncoders,
-
-  // builders
-  buildx264VODCommand
-}