PeerTube/server/core/lib/transcoding/default-transcoding-profile...

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import { logger } from '@server/helpers/logger.js'
import { FFmpegCommandWrapper, getDefaultAvailableEncoders } from '@peertube/peertube-ffmpeg'
import { AvailableEncoders, EncoderOptionsBuilder } from '@peertube/peertube-models'
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// ---------------------------------------------------------------------------
// Profile manager to get and change default profiles
// ---------------------------------------------------------------------------
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class VideoTranscodingProfilesManager {
private static instance: VideoTranscodingProfilesManager
// 1 === less priority
private readonly encodersPriorities = {
vod: this.buildDefaultEncodersPriorities(),
live: this.buildDefaultEncodersPriorities()
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}
private readonly availableEncoders = getDefaultAvailableEncoders()
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private availableProfiles = {
vod: [] as string[],
live: [] as string[]
}
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private constructor () {
this.buildAvailableProfiles()
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}
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')
}
}
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}
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}
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()
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}
addEncoderPriority (type: 'vod' | 'live', streamType: 'audio' | 'video', encoder: string, priority: number) {
this.encodersPriorities[type][streamType].push({ name: encoder, priority, isDefault: false })
FFmpegCommandWrapper.resetSupportedEncoders()
}
removeEncoderPriority (type: 'vod' | 'live', streamType: 'audio' | 'video', encoder: string, priority: number) {
this.encodersPriorities[type][streamType] = this.encodersPriorities[type][streamType]
.filter(o => {
// Don't remove default encoders
if (o.isDefault) return true
// Don't include this encoder anymore
if (o.name === encoder && o.priority === priority) return false
return true
})
FFmpegCommandWrapper.resetSupportedEncoders()
}
private getEncodersByPriority (type: 'vod' | 'live', streamType: 'audio' | 'video') {
return this.encodersPriorities[type][streamType]
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.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, isDefault: true }
],
// 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, isDefault: true },
{ name: 'aac', priority: 100, isDefault: true }
]
}
}
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static get Instance () {
return this.instance || (this.instance = new this())
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}
}
// ---------------------------------------------------------------------------
export {
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VideoTranscodingProfilesManager
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}