Add basic video editor support

1 files changed, 0 insertions, 270 deletions

diff --git a/server/lib/transcoding/video-transcoding-profiles.ts b/server/lib/transcoding/video-transcoding-profiles.ts
deleted file mode 100644
index dcc8d4c5c..000000000
--- a/server/lib/transcoding/video-transcoding-profiles.ts
+++ /dev/null
@@ -1,270 +0,0 @@
-
-import { logger } from '@server/helpers/logger'
-import { getAverageBitrate, getMinLimitBitrate } from '@shared/core-utils'
-import { AvailableEncoders, EncoderOptionsBuilder, EncoderOptionsBuilderParams, VideoResolution } from '../../../shared/models/videos'
-import { buildStreamSuffix, resetSupportedEncoders } from '../../helpers/ffmpeg-utils'
-import { canDoQuickAudioTranscode, ffprobePromise, getAudioStream, getMaxAudioBitrate } from '../../helpers/ffprobe-utils'
-
-/**
- *
- * Available encoders and profiles for the transcoding jobs
- * These functions are used by ffmpeg-utils that will get the encoders and options depending on the chosen profile
- *
- * Resources:
- *  * https://slhck.info/video/2017/03/01/rate-control.html
- *  * https://trac.ffmpeg.org/wiki/Limiting%20the%20output%20bitrate
- */
-
-const defaultX264VODOptionsBuilder: EncoderOptionsBuilder = (options: EncoderOptionsBuilderParams) => {
-  const { fps, inputRatio, inputBitrate, resolution } = options
-  if (!fps) return { outputOptions: [ ] }
-
-  const targetBitrate = getTargetBitrate({ inputBitrate, ratio: inputRatio, fps, resolution })
-
-  return {
-    outputOptions: [
-      ...getCommonOutputOptions(targetBitrate),
-
-      `-r ${fps}`
-    ]
-  }
-}
-
-const defaultX264LiveOptionsBuilder: EncoderOptionsBuilder = (options: EncoderOptionsBuilderParams) => {
-  const { streamNum, fps, inputBitrate, inputRatio, resolution } = options
-
-  const targetBitrate = getTargetBitrate({ inputBitrate, ratio: inputRatio, fps, resolution })
-
-  return {
-    outputOptions: [
-      ...getCommonOutputOptions(targetBitrate),
-
-      `${buildStreamSuffix('-r:v', streamNum)} ${fps}`,
-      `${buildStreamSuffix('-b:v', streamNum)} ${targetBitrate}`
-    ]
-  }
-}
-
-const defaultAACOptionsBuilder: EncoderOptionsBuilder = async ({ input, streamNum }) => {
-  const probe = await ffprobePromise(input)
-
-  if (await canDoQuickAudioTranscode(input, probe)) {
-    logger.debug('Copy audio stream %s by AAC encoder.', input)
-    return { copy: true, outputOptions: [ ] }
-  }
-
-  const parsedAudio = await getAudioStream(input, probe)
-
-  // We try to reduce the ceiling bitrate by making rough matches of bitrates
-  // Of course this is far from perfect, but it might save some space in the end
-
-  const audioCodecName = parsedAudio.audioStream['codec_name']
-
-  const bitrate = getMaxAudioBitrate(audioCodecName, parsedAudio.bitrate)
-
-  logger.debug('Calculating audio bitrate of %s by AAC encoder.', input, { bitrate: parsedAudio.bitrate, audioCodecName })
-
-  if (bitrate !== -1) {
-    return { outputOptions: [ buildStreamSuffix('-b:a', streamNum), bitrate + 'k' ] }
-  }
-
-  return { outputOptions: [ ] }
-}
-
-const defaultLibFDKAACVODOptionsBuilder: EncoderOptionsBuilder = ({ streamNum }) => {
-  return { outputOptions: [ buildStreamSuffix('-q:a', streamNum), '5' ] }
-}
-
-// Used to get and update available encoders
-class VideoTranscodingProfilesManager {
-  private static instance: VideoTranscodingProfilesManager
-
-  // 1 === less priority
-  private readonly encodersPriorities = {
-    vod: this.buildDefaultEncodersPriorities(),
-    live: this.buildDefaultEncodersPriorities()
-  }
-
-  private readonly availableEncoders = {
-    vod: {
-      libx264: {
-        default: defaultX264VODOptionsBuilder
-      },
-      aac: {
-        default: defaultAACOptionsBuilder
-      },
-      libfdk_aac: {
-        default: defaultLibFDKAACVODOptionsBuilder
-      }
-    },
-    live: {
-      libx264: {
-        default: defaultX264LiveOptionsBuilder
-      },
-      aac: {
-        default: defaultAACOptionsBuilder
-      }
-    }
-  }
-
-  private availableProfiles = {
-    vod: [] as string[],
-    live: [] as string[]
-  }
-
-  private constructor () {
-    this.buildAvailableProfiles()
-  }
-
-  getAvailableEncoders (): AvailableEncoders {
-    return {
-      available: this.availableEncoders,
-      encodersToTry: {
-        vod: {
-          video: this.getEncodersByPriority('vod', 'video'),
-          audio: this.getEncodersByPriority('vod', 'audio')
-        },
-        live: {
-          video: this.getEncodersByPriority('live', 'video'),
-          audio: this.getEncodersByPriority('live', 'audio')
-        }
-      }
-    }
-  }
-
-  getAvailableProfiles (type: 'vod' | 'live') {
-    return this.availableProfiles[type]
-  }
-
-  addProfile (options: {
-    type: 'vod' | 'live'
-    encoder: string
-    profile: string
-    builder: EncoderOptionsBuilder
-  }) {
-    const { type, encoder, profile, builder } = options
-
-    const encoders = this.availableEncoders[type]
-
-    if (!encoders[encoder]) encoders[encoder] = {}
-    encoders[encoder][profile] = builder
-
-    this.buildAvailableProfiles()
-  }
-
-  removeProfile (options: {
-    type: 'vod' | 'live'
-    encoder: string
-    profile: string
-  }) {
-    const { type, encoder, profile } = options
-
-    delete this.availableEncoders[type][encoder][profile]
-    this.buildAvailableProfiles()
-  }
-
-  addEncoderPriority (type: 'vod' | 'live', streamType: 'audio' | 'video', encoder: string, priority: number) {
-    this.encodersPriorities[type][streamType].push({ name: encoder, priority })
-
-    resetSupportedEncoders()
-  }
-
-  removeEncoderPriority (type: 'vod' | 'live', streamType: 'audio' | 'video', encoder: string, priority: number) {
-    this.encodersPriorities[type][streamType] = this.encodersPriorities[type][streamType]
-                                                    .filter(o => o.name !== encoder && o.priority !== priority)
-
-    resetSupportedEncoders()
-  }
-
-  private getEncodersByPriority (type: 'vod' | 'live', streamType: 'audio' | 'video') {
-    return this.encodersPriorities[type][streamType]
-      .sort((e1, e2) => {
-        if (e1.priority > e2.priority) return -1
-        else if (e1.priority === e2.priority) return 0
-
-        return 1
-      })
-      .map(e => e.name)
-  }
-
-  private buildAvailableProfiles () {
-    for (const type of [ 'vod', 'live' ]) {
-      const result = new Set()
-
-      const encoders = this.availableEncoders[type]
-
-      for (const encoderName of Object.keys(encoders)) {
-        for (const profile of Object.keys(encoders[encoderName])) {
-          result.add(profile)
-        }
-      }
-
-      this.availableProfiles[type] = Array.from(result)
-    }
-
-    logger.debug('Available transcoding profiles built.', { availableProfiles: this.availableProfiles })
-  }
-
-  private buildDefaultEncodersPriorities () {
-    return {
-      video: [
-        { name: 'libx264', priority: 100 }
-      ],
-
-      // Try the first one, if not available try the second one etc
-      audio: [
-        // we favor VBR, if a good AAC encoder is available
-        { name: 'libfdk_aac', priority: 200 },
-        { name: 'aac', priority: 100 }
-      ]
-    }
-  }
-
-  static get Instance () {
-    return this.instance || (this.instance = new this())
-  }
-}
-
-// ---------------------------------------------------------------------------
-
-export {
-  VideoTranscodingProfilesManager
-}
-
-// ---------------------------------------------------------------------------
-
-function getTargetBitrate (options: {
-  inputBitrate: number
-  resolution: VideoResolution
-  ratio: number
-  fps: number
-}) {
-  const { inputBitrate, resolution, ratio, fps } = options
-
-  const capped = capBitrate(inputBitrate, getAverageBitrate({ resolution, fps, ratio }))
-  const limit = getMinLimitBitrate({ resolution, fps, ratio })
-
-  return Math.max(limit, capped)
-}
-
-function capBitrate (inputBitrate: number, targetBitrate: number) {
-  if (!inputBitrate) return targetBitrate
-
-  // Add 30% margin to input bitrate
-  const inputBitrateWithMargin = inputBitrate + (inputBitrate * 0.3)
-
-  return Math.min(targetBitrate, inputBitrateWithMargin)
-}
-
-function getCommonOutputOptions (targetBitrate: number) {
-  return [
-    `-preset veryfast`,
-    `-maxrate ${targetBitrate}`,
-    `-bufsize ${targetBitrate * 2}`,
-
-    // NOTE: b-strategy 1 - heuristic algorithm, 16 is optimal B-frames for it
-    `-b_strategy 1`,
-    // NOTE: Why 16: https://github.com/Chocobozzz/PeerTube/pull/774. b-strategy 2 -> B-frames<16
-    `-bf 16`
-  ]
-}