115 lines
3.1 KiB
TypeScript
115 lines
3.1 KiB
TypeScript
|
import { Job } from 'bull'
|
||
|
|
import ffmpeg, { FfmpegCommand } from 'fluent-ffmpeg'
|
||
|
|
import { execPromise } from '@server/helpers/core-utils'
|
||
|
|
import { logger, loggerTagsFactory } from '@server/helpers/logger'
|
||
|
|
import { CONFIG } from '@server/initializers/config'
|
||
|
|
import { FFMPEG_NICE } from '@server/initializers/constants'
|
||
|
|
import { EncoderOptions } from '@shared/models'
|
||
|
|
|
||
|
|
const lTags = loggerTagsFactory('ffmpeg')
|
||
|
|
|
||
|
|
type StreamType = 'audio' | 'video'
|
||
|
|
|
||
|
|
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 by default
|
||
|
|
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()
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
function buildStreamSuffix (base: string, streamNum?: number) {
|
||
|
|
if (streamNum !== undefined) {
|
||
|
|
return `${base}:${streamNum}`
|
||
|
|
}
|
||
|
|
|
||
|
|
return base
|
||
|
|
}
|
||
|
|
|
||
|
|
function getScaleFilter (options: EncoderOptions): string {
|
||
|
|
if (options.scaleFilter) return options.scaleFilter.name
|
||
|
|
|
||
|
|
return 'scale'
|
||
|
|
}
|
||
|
|
|
||
|
|
export {
|
||
|
|
getFFmpeg,
|
||
|
|
getFFmpegVersion,
|
||
|
|
runCommand,
|
||
|
|
StreamType,
|
||
|
|
buildStreamSuffix,
|
||
|
|
getScaleFilter
|
||
|
|
}
|