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Use a profile manager for transcoding

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Chocobozzz 2021-01-28 09:37:26 +01:00
parent 923d3d5ad5
commit 529b37527c
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GPG key ID: 583A612D890159BE
6 changed files with 116 additions and 52 deletions
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4
scripts/print-transcode-command.ts
View file

@ -3,9 +3,9 @@ registerTSPaths()
import * as program from 'commander'
import * as ffmpeg from 'fluent-ffmpeg'
import { availableEncoders } from '@server/lib/video-transcoding-profiles'
import { buildx264VODCommand, runCommand, TranscodeOptions } from '@server/helpers/ffmpeg-utils'
import { exit } from 'process'
import { VideoTranscodingProfilesManager } from '@server/lib/video-transcoding-profiles'
program
.arguments('<path>')
@ -31,7 +31,7 @@ async function run (path: string, cmd: any) {
inputPath: path,
outputPath: '/dev/null',
availableEncoders,
availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
profile: 'default',
resolution: +cmd.resolution,

51
server/helpers/ffmpeg-utils.ts
View file

@ -2,7 +2,7 @@ import { Job } from 'bull'
import * as ffmpeg from 'fluent-ffmpeg'
import { readFile, remove, writeFile } from 'fs-extra'
import { dirname, join } from 'path'
import { FFMPEG_NICE, VIDEO_LIVE, VIDEO_TRANSCODING_ENCODERS } from '@server/initializers/constants'
import { FFMPEG_NICE, VIDEO_LIVE } from '@server/initializers/constants'
import { VideoResolution } from '../../shared/models/videos'
import { checkFFmpegEncoders } from '../initializers/checker-before-init'
import { CONFIG } from '../initializers/config'
@ -46,11 +46,22 @@ export interface EncoderProfile <T> {
}
export type AvailableEncoders = {
[ id in 'live' | 'vod' ]: {
[ encoder in 'libx264' | 'aac' | 'libfdk_aac' ]?: EncoderProfile<EncoderOptionsBuilder>
live: {
[ encoder: string ]: EncoderProfile<EncoderOptionsBuilder>
}
vod: {
[ encoder: string ]: EncoderProfile<EncoderOptionsBuilder>
}
encodersToTry: {
video: string[]
audio: string[]
}
}
type StreamType = 'audio' | 'video'
// ---------------------------------------------------------------------------
// Image manipulation
// ---------------------------------------------------------------------------
@ -243,8 +254,10 @@ async function getLiveTranscodingCommand (options: {
const baseEncoderBuilderParams = {
input,
availableEncoders,
profile,
fps: resolutionFPS,
resolution,
streamNum: i,
@ -252,7 +265,8 @@ async function getLiveTranscodingCommand (options: {
}
{
const builderResult = await getEncoderBuilderResult(Object.assign({}, baseEncoderBuilderParams, { streamType: 'VIDEO' }))
const streamType: StreamType = 'video'
const builderResult = await getEncoderBuilderResult(Object.assign({}, baseEncoderBuilderParams, { streamType }))
if (!builderResult) {
throw new Error('No available live video encoder found')
}
@ -268,7 +282,8 @@ async function getLiveTranscodingCommand (options: {
}
{
const builderResult = await getEncoderBuilderResult(Object.assign({}, baseEncoderBuilderParams, { streamType: 'AUDIO' }))
const streamType: StreamType = 'audio'
const builderResult = await getEncoderBuilderResult(Object.assign({}, baseEncoderBuilderParams, { streamType }))
if (!builderResult) {
throw new Error('No available live audio encoder found')
}
@ -480,8 +495,11 @@ function getHLSVideoPath (options: HLSTranscodeOptions | HLSFromTSTranscodeOptio
// 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: {
streamType: string
streamType: 'video' | 'audio'
input: string
availableEncoders: AvailableEncoders
@ -495,17 +513,24 @@ async function getEncoderBuilderResult (options: {
}) {
const { availableEncoders, input, profile, resolution, streamType, fps, streamNum, videoType } = options
const encodersToTry: string[] = VIDEO_TRANSCODING_ENCODERS[streamType]
const encodersToTry = availableEncoders.encodersToTry[streamType]
const encoders = availableEncoders[videoType]
for (const encoder of encodersToTry) {
if (!(await checkFFmpegEncoders()).get(encoder) || !availableEncoders[videoType][encoder]) continue
if (!(await checkFFmpegEncoders()).get(encoder) || !encoders[encoder]) continue
const builderProfiles: EncoderProfile<EncoderOptionsBuilder> = availableEncoders[videoType][encoder]
// 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)
builder = builderProfiles.default
if (!builder) {
logger.debug('Default profile for encoder %s not available. Try next available encoder.', encoder)
continue
}
}
const result = await builder({ input, resolution: resolution, fps, streamNum })
@ -538,11 +563,11 @@ async function presetVideo (
// Audio encoder
const parsedAudio = await getAudioStream(input)
let streamsToProcess = [ 'AUDIO', 'VIDEO' ]
let streamsToProcess: StreamType[] = [ 'audio', 'video' ]
if (!parsedAudio.audioStream) {
localCommand = localCommand.noAudio()
streamsToProcess = [ 'VIDEO' ]
streamsToProcess = [ 'audio' ]
}
for (const streamType of streamsToProcess) {
@ -564,9 +589,9 @@ async function presetVideo (
logger.debug('Apply ffmpeg params from %s.', builderResult.encoder, builderResult)
if (streamType === 'VIDEO') {
if (streamType === 'video') {
localCommand.videoCodec(builderResult.encoder)
} else if (streamType === 'AUDIO') {
} else if (streamType === 'audio') {
localCommand.audioCodec(builderResult.encoder)
}

12
server/initializers/constants.ts
View file

@ -341,17 +341,6 @@ const VIDEO_TRANSCODING_FPS: VideoTranscodingFPS = {
KEEP_ORIGIN_FPS_RESOLUTION_MIN: 720 // We keep the original FPS on high resolutions (720 minimum)
}
const VIDEO_TRANSCODING_ENCODERS = {
VIDEO: [ 'libx264' ],
// Try the first one, if not available try the second one etc
AUDIO: [
// we favor VBR, if a good AAC encoder is available
'libfdk_aac',
'aac'
]
}
const DEFAULT_AUDIO_RESOLUTION = VideoResolution.H_480P
const VIDEO_RATE_TYPES: { [ id: string ]: VideoRateType } = {
@ -828,7 +817,6 @@ export {
ACTOR_FOLLOW_SCORE,
PREVIEWS_SIZE,
REMOTE_SCHEME,
VIDEO_TRANSCODING_ENCODERS,
FOLLOW_STATES,
DEFAULT_USER_THEME_NAME,
SERVER_ACTOR_NAME,

4
server/lib/live-manager.ts
View file

@ -25,7 +25,7 @@ import { cleanupLive } from './job-queue/handlers/video-live-ending'
import { PeerTubeSocket } from './peertube-socket'
import { isAbleToUploadVideo } from './user'
import { getHLSDirectory } from './video-paths'
import { availableEncoders } from './video-transcoding-profiles'
import { VideoTranscodingProfilesManager } from './video-transcoding-profiles'
import memoizee = require('memoizee')
const NodeRtmpSession = require('node-media-server/node_rtmp_session')
@ -337,7 +337,7 @@ class LiveManager {
outPath,
resolutions: allResolutions,
fps,
availableEncoders,
availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
profile: 'default'
})
: getLiveMuxingCommand(rtmpUrl, outPath)

85
server/lib/video-transcoding-profiles.ts
View file

@ -78,32 +78,83 @@ const defaultLibFDKAACVODOptionsBuilder: EncoderOptionsBuilder = ({ streamNum })
return { outputOptions: [ buildStreamSuffix('-q:a', streamNum), '5' ] }
}
const availableEncoders: AvailableEncoders = {
vod: {
libx264: {
default: defaultX264VODOptionsBuilder
// Used to get and update available encoders
class VideoTranscodingProfilesManager {
private static instance: VideoTranscodingProfilesManager
// 1 === less priority
private readonly encodersPriorities = {
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 }
]
}
private readonly availableEncoders = {
vod: {
libx264: {
default: defaultX264VODOptionsBuilder
},
aac: {
default: defaultAACOptionsBuilder
},
libfdk_aac: {
default: defaultLibFDKAACVODOptionsBuilder
}
},
aac: {
default: defaultAACOptionsBuilder
},
libfdk_aac: {
default: defaultLibFDKAACVODOptionsBuilder
live: {
libx264: {
default: defaultX264LiveOptionsBuilder
},
aac: {
default: defaultAACOptionsBuilder
}
}
},
live: {
libx264: {
default: defaultX264LiveOptionsBuilder
},
aac: {
default: defaultAACOptionsBuilder
}
private constructor () {
}
getAvailableEncoders (): AvailableEncoders {
const encodersToTry = {
video: this.getEncodersByPriority('video'),
audio: this.getEncodersByPriority('audio')
}
return Object.assign({}, this.availableEncoders, { encodersToTry })
}
getAvailableProfiles (type: 'vod' | 'live') {
return this.availableEncoders[type]
}
private getEncodersByPriority (type: 'video' | 'audio') {
return this.encodersPriorities[type]
.sort((e1, e2) => {
if (e1.priority > e2.priority) return -1
else if (e1.priority === e2.priority) return 0
return 1
})
.map(e => e.name)
}
static get Instance () {
return this.instance || (this.instance = new this())
}
}
// ---------------------------------------------------------------------------
export {
availableEncoders
VideoTranscodingProfilesManager
}
// ---------------------------------------------------------------------------

12
server/lib/video-transcoding.ts
View file

@ -14,7 +14,7 @@ import { VideoFileModel } from '../models/video/video-file'
import { VideoStreamingPlaylistModel } from '../models/video/video-streaming-playlist'
import { updateMasterHLSPlaylist, updateSha256VODSegments } from './hls'
import { generateVideoStreamingPlaylistName, getVideoFilename, getVideoFilePath } from './video-paths'
import { availableEncoders } from './video-transcoding-profiles'
import { VideoTranscodingProfilesManager } from './video-transcoding-profiles'
/**
*
@ -41,7 +41,7 @@ async function optimizeOriginalVideofile (video: MVideoWithFile, inputVideoFile:
inputPath: videoInputPath,
outputPath: videoTranscodedPath,
availableEncoders,
availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
profile: 'default',
resolution: inputVideoFile.resolution,
@ -95,7 +95,7 @@ async function transcodeNewWebTorrentResolution (video: MVideoWithFile, resoluti
inputPath: videoInputPath,
outputPath: videoTranscodedPath,
availableEncoders,
availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
profile: 'default',
resolution,
@ -107,7 +107,7 @@ async function transcodeNewWebTorrentResolution (video: MVideoWithFile, resoluti
inputPath: videoInputPath,
outputPath: videoTranscodedPath,
availableEncoders,
availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
profile: 'default',
resolution,
@ -142,7 +142,7 @@ async function mergeAudioVideofile (video: MVideoWithAllFiles, resolution: Video
inputPath: tmpPreviewPath,
outputPath: videoTranscodedPath,
availableEncoders,
availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
profile: 'default',
audioPath: audioInputPath,
@ -283,7 +283,7 @@ async function generateHlsPlaylistCommon (options: {
inputPath,
outputPath,
availableEncoders,
availableEncoders: VideoTranscodingProfilesManager.Instance.getAvailableEncoders(),
profile: 'default',
resolution,