-import * as ffmpeg from 'fluent-ffmpeg'
+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, VIDEO_TRANSCODING_ENCODERS } from '@server/initializers/constants'
-import { VideoResolution } from '../../shared/models/videos'
-import { checkFFmpegEncoders } from '../initializers/checker-before-init'
+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 { computeFPS, getAudioStream, getVideoFileFPS } from './ffprobe-utils'
+import { execPromise, promisify0 } from './core-utils'
+import { computeFPS, ffprobePromise, getAudioStream, getVideoFileBitrate, getVideoFileFPS, getVideoFileResolution } from './ffprobe-utils'
import { processImage } from './image-utils'
import { logger } from './logger'
// Encoder options
// ---------------------------------------------------------------------------
-// Options builders
+type StreamType = 'audio' | 'video'
-export type EncoderOptionsBuilder = (params: {
- input: string
- resolution: VideoResolution
- fps?: number
- streamNum?: number
-}) => Promise<EncoderOptions> | EncoderOptions
+// ---------------------------------------------------------------------------
+// Encoders support
+// ---------------------------------------------------------------------------
-// Options types
+// Detect supported encoders by ffmpeg
+let supportedEncoders: Map<string, boolean>
+async function checkFFmpegEncoders (peertubeAvailableEncoders: AvailableEncoders): Promise<Map<string, boolean>> {
+ if (supportedEncoders !== undefined) {
+ return supportedEncoders
+ }
-export interface EncoderOptions {
- copy?: boolean
- outputOptions: string[]
-}
+ const getAvailableEncodersPromise = promisify0(getAvailableEncoders)
+ const availableFFmpegEncoders = await getAvailableEncodersPromise()
-// All our encoders
+ 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)
+ }
-export interface EncoderProfile <T> {
- [ profile: string ]: T
+ logger.info('Built supported ffmpeg encoders.', { supportedEncoders, searchEncoders })
- default: T
+ return supportedEncoders
}
-export type AvailableEncoders = {
- [ id in 'live' | 'vod' ]: {
- [ encoder in 'libx264' | 'aac' | 'libfdk_aac' ]?: EncoderProfile<EncoderOptionsBuilder>
- }
+function resetSupportedEncoders () {
+ supportedEncoders = undefined
}
// ---------------------------------------------------------------------------
// ---------------------------------------------------------------------------
function convertWebPToJPG (path: string, destination: string): Promise<void> {
- const command = ffmpeg(path)
+ const command = ffmpeg(path, { niceness: FFMPEG_NICE.THUMBNAIL })
.output(destination)
- return runCommand(command)
+ return runCommand({ command, silent: true })
}
function processGIF (
destination: string,
newSize: { width: number, height: number }
): Promise<void> {
- const command = ffmpeg(path)
+ const command = ffmpeg(path, { niceness: FFMPEG_NICE.THUMBNAIL })
.fps(20)
.size(`${newSize.width}x${newSize.height}`)
.output(destination)
- return runCommand(command)
+ return runCommand({ command })
}
async function generateImageFromVideoFile (fromPath: string, folder: string, imageName: string, size: { width: number, height: number }) {
availableEncoders: AvailableEncoders
profile: string
- resolution: VideoResolution
+ resolution: number
isPortraitMode?: boolean
+
+ job?: Job
}
interface HLSTranscodeOptions extends BaseTranscodeOptions {
interface HLSFromTSTranscodeOptions extends BaseTranscodeOptions {
type: 'hls-from-ts'
+ isAAC: boolean
+
hlsPlaylist: {
videoFilename: string
}
| QuickTranscodeOptions
const builders: {
- [ type in TranscodeOptionsType ]: (c: ffmpeg.FfmpegCommand, o?: TranscodeOptions) => Promise<ffmpeg.FfmpegCommand> | ffmpeg.FfmpegCommand
+ [ type in TranscodeOptionsType ]: (c: FfmpegCommand, o?: TranscodeOptions) => Promise<FfmpegCommand> | FfmpegCommand
} = {
'quick-transcode': buildQuickTranscodeCommand,
'hls': buildHLSVODCommand,
command = await builders[options.type](command, options)
- await runCommand(command)
+ await runCommand({ command, job: options.job })
await fixHLSPlaylistIfNeeded(options)
}
// ---------------------------------------------------------------------------
async function getLiveTranscodingCommand (options: {
- rtmpUrl: string
+ inputUrl: string
+
outPath: string
+ masterPlaylistName: string
+
resolutions: number[]
+
+ // Input information
fps: number
+ bitrate: number
+ ratio: number
availableEncoders: AvailableEncoders
profile: string
}) {
- const { rtmpUrl, outPath, resolutions, fps, availableEncoders, profile } = options
- const input = rtmpUrl
+ const { inputUrl, outPath, resolutions, fps, bitrate, availableEncoders, profile, masterPlaylistName, ratio } = options
- const command = getFFmpeg(input, 'live')
+ const command = getFFmpeg(inputUrl, 'live')
const varStreamMap: string[] = []
- command.complexFilter([
+ const complexFilter: FilterSpecification[] = [
{
inputs: '[v:0]',
filter: 'split',
options: resolutions.length,
outputs: resolutions.map(r => `vtemp${r}`)
- },
-
- ...resolutions.map(r => ({
- inputs: `vtemp${r}`,
- filter: 'scale',
- options: `w=-2:h=${r}`,
- outputs: `vout${r}`
- }))
- ])
+ }
+ ]
- command.outputOption('-preset superfast')
command.outputOption('-sc_threshold 0')
addDefaultEncoderGlobalParams({ command })
const resolutionFPS = computeFPS(fps, resolution)
const baseEncoderBuilderParams = {
- input,
+ input: inputUrl,
+
availableEncoders,
profile,
- fps: resolutionFPS,
+
+ inputBitrate: bitrate,
+ inputRatio: ratio,
+
resolution,
+ fps: resolutionFPS,
+
streamNum: i,
videoType: 'live' as 'live'
}
{
- const builderResult = await getEncoderBuilderResult(Object.assign({}, baseEncoderBuilderParams, { streamType: 'VIDEO' }))
+ const streamType: StreamType = 'video'
+ const builderResult = await getEncoderBuilderResult({ ...baseEncoderBuilderParams, streamType })
if (!builderResult) {
throw new Error('No available live video encoder found')
}
addDefaultEncoderParams({ command, encoder: builderResult.encoder, fps: resolutionFPS, streamNum: i })
- logger.debug('Apply ffmpeg live video params from %s.', builderResult.encoder, builderResult)
+ logger.debug('Apply ffmpeg live video params from %s using %s profile.', builderResult.encoder, profile, builderResult)
command.outputOption(`${buildStreamSuffix('-c:v', i)} ${builderResult.encoder}`)
- command.addOutputOptions(builderResult.result.outputOptions)
+ applyEncoderOptions(command, builderResult.result)
+
+ complexFilter.push({
+ inputs: `vtemp${resolution}`,
+ filter: getScaleFilter(builderResult.result),
+ options: `w=-2:h=${resolution}`,
+ outputs: `vout${resolution}`
+ })
}
{
- const builderResult = await getEncoderBuilderResult(Object.assign({}, baseEncoderBuilderParams, { streamType: 'AUDIO' }))
+ const streamType: StreamType = 'audio'
+ const builderResult = await getEncoderBuilderResult({ ...baseEncoderBuilderParams, streamType })
if (!builderResult) {
throw new Error('No available live audio encoder found')
}
addDefaultEncoderParams({ command, encoder: builderResult.encoder, fps: resolutionFPS, streamNum: i })
- logger.debug('Apply ffmpeg live audio params from %s.', builderResult.encoder, builderResult)
+ logger.debug('Apply ffmpeg live audio params from %s using %s profile.', builderResult.encoder, profile, builderResult)
command.outputOption(`${buildStreamSuffix('-c:a', i)} ${builderResult.encoder}`)
- command.addOutputOptions(builderResult.result.outputOptions)
+ applyEncoderOptions(command, builderResult.result)
}
varStreamMap.push(`v:${i},a:${i}`)
}
- addDefaultLiveHLSParams(command, outPath)
+ command.complexFilter(complexFilter)
+
+ addDefaultLiveHLSParams(command, outPath, masterPlaylistName)
command.outputOption('-var_stream_map', varStreamMap.join(' '))
return command
}
-function getLiveMuxingCommand (rtmpUrl: string, outPath: string) {
- const command = getFFmpeg(rtmpUrl, 'live')
+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)
+ addDefaultLiveHLSParams(command, outPath, masterPlaylistName)
return command
}
return base
}
-// ---------------------------------------------------------------------------
-
-export {
- getLiveTranscodingCommand,
- getLiveMuxingCommand,
- buildStreamSuffix,
- convertWebPToJPG,
- processGIF,
- generateImageFromVideoFile,
- TranscodeOptions,
- TranscodeOptionsType,
- transcode
-}
-
-// ---------------------------------------------------------------------------
-
// ---------------------------------------------------------------------------
// Default options
// ---------------------------------------------------------------------------
function addDefaultEncoderGlobalParams (options: {
- command: ffmpeg.FfmpegCommand
+ command: FfmpegCommand
}) {
const { command } = options
}
function addDefaultEncoderParams (options: {
- command: ffmpeg.FfmpegCommand
+ command: FfmpegCommand
encoder: 'libx264' | string
streamNum?: number
fps?: number
}
}
-function addDefaultLiveHLSParams (command: ffmpeg.FfmpegCommand, outPath: string) {
+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 ${join(outPath, '%v-%06d.ts')}`)
- command.outputOption('-master_pl_name master.m3u8')
+ command.outputOption('-master_pl_name ' + masterPlaylistName)
command.outputOption(`-f hls`)
command.output(join(outPath, '%v.m3u8'))
// Transcode VOD command builders
// ---------------------------------------------------------------------------
-async function buildx264VODCommand (command: ffmpeg.FfmpegCommand, options: TranscodeOptions) {
+async function buildx264VODCommand (command: FfmpegCommand, options: TranscodeOptions) {
let fps = await getVideoFileFPS(options.inputPath)
fps = computeFPS(fps, options.resolution)
- command = await presetVideo(command, options.inputPath, options, fps)
+ let scaleFilterValue: string
if (options.resolution !== undefined) {
- // '?x720' or '720x?' for example
- const size = options.isPortraitMode === true
- ? `${options.resolution}x?`
- : `?x${options.resolution}`
-
- command = command.size(size)
+ scaleFilterValue = options.isPortraitMode === true
+ ? `w=${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: ffmpeg.FfmpegCommand, options: MergeAudioTranscodeOptions) {
+async function buildAudioMergeCommand (command: FfmpegCommand, options: MergeAudioTranscodeOptions) {
command = command.loop(undefined)
- command = await presetVideo(command, options.audioPath, options)
+ const scaleFilterValue = getScaleCleanerValue()
+ command = await presetVideo({ command, input: options.audioPath, transcodeOptions: options, scaleFilterValue })
command.outputOption('-preset:v veryfast')
command = command.input(options.audioPath)
- .videoFilter('scale=trunc(iw/2)*2:trunc(ih/2)*2') // Avoid "height not divisible by 2" error
.outputOption('-tune stillimage')
.outputOption('-shortest')
return command
}
-function buildOnlyAudioCommand (command: ffmpeg.FfmpegCommand, _options: OnlyAudioTranscodeOptions) {
+function buildOnlyAudioCommand (command: FfmpegCommand, _options: OnlyAudioTranscodeOptions) {
command = presetOnlyAudio(command)
return command
}
-function buildQuickTranscodeCommand (command: ffmpeg.FfmpegCommand) {
+function buildQuickTranscodeCommand (command: FfmpegCommand) {
command = presetCopy(command)
command = command.outputOption('-map_metadata -1') // strip all metadata
return command
}
-function addCommonHLSVODCommandOptions (command: ffmpeg.FfmpegCommand, outputPath: string) {
+function addCommonHLSVODCommandOptions (command: FfmpegCommand, outputPath: string) {
return command.outputOption('-hls_time 4')
.outputOption('-hls_list_size 0')
.outputOption('-hls_playlist_type vod')
.outputOption('-hls_flags single_file')
}
-async function buildHLSVODCommand (command: ffmpeg.FfmpegCommand, options: HLSTranscodeOptions) {
+async function buildHLSVODCommand (command: FfmpegCommand, options: HLSTranscodeOptions) {
const videoPath = getHLSVideoPath(options)
if (options.copyCodecs) command = presetCopy(command)
return command
}
-async function buildHLSVODFromTSCommand (command: ffmpeg.FfmpegCommand, options: HLSFromTSTranscodeOptions) {
+function buildHLSVODFromTSCommand (command: FfmpegCommand, options: HLSFromTSTranscodeOptions) {
const videoPath = getHLSVideoPath(options)
command.outputOption('-c copy')
- // 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')
+
+ 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)
// Transcoding presets
// ---------------------------------------------------------------------------
-async function getEncoderBuilderResult (options: {
- streamType: string
+// 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'
-
- resolution: number
- fps?: number
- streamNum?: number
}) {
- const { availableEncoders, input, profile, resolution, streamType, fps, streamNum, videoType } = options
+ const { availableEncoders, profile, streamType, videoType } = options
- const encodersToTry: string[] = VIDEO_TRANSCODING_ENCODERS[streamType]
+ const encodersToTry = availableEncoders.encodersToTry[videoType][streamType]
+ const encoders = availableEncoders.available[videoType]
for (const encoder of encodersToTry) {
- if (!(await checkFFmpegEncoders()).get(encoder) || !availableEncoders[videoType][encoder]) continue
+ if (!(await checkFFmpegEncoders(availableEncoders)).get(encoder)) {
+ logger.debug('Encoder %s not available in ffmpeg, skipping.', encoder)
+ continue
+ }
- const builderProfiles: EncoderProfile<EncoderOptionsBuilder> = availableEncoders[videoType][encoder]
+ if (!encoders[encoder]) {
+ logger.debug('Encoder %s not available in peertube encoders, skipping.', encoder)
+ 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)
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 })
+ const result = await builder(pick(options, [ 'input', 'resolution', 'inputBitrate', 'fps', 'inputRatio', 'streamNum' ]))
return {
result,
return null
}
-async function presetVideo (
- command: ffmpeg.FfmpegCommand,
- input: string,
- transcodeOptions: TranscodeOptions,
+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)
+ const parsedAudio = await getAudioStream(input, probe)
+ const bitrate = await getVideoFileBitrate(input, probe)
+ const { ratio } = await getVideoFileResolution(input, probe)
- let streamsToProcess = [ 'AUDIO', 'VIDEO' ]
+ let streamsToProcess: StreamType[] = [ 'audio', 'video' ]
if (!parsedAudio.audioStream) {
localCommand = localCommand.noAudio()
- streamsToProcess = [ 'VIDEO' ]
+ streamsToProcess = [ 'video' ]
}
for (const streamType of streamsToProcess) {
availableEncoders,
profile,
fps,
+ inputBitrate: bitrate,
+ inputRatio: ratio,
videoType: 'vod' as 'vod'
})
throw new Error('No available encoder found for stream ' + streamType)
}
- logger.debug('Apply ffmpeg params from %s.', builderResult.encoder, builderResult)
+ logger.debug(
+ 'Apply ffmpeg params from %s for %s stream of input %s using %s profile.',
+ builderResult.encoder, streamType, input, profile, builderResult
+ )
- if (streamType === 'VIDEO') {
+ if (streamType === 'video') {
localCommand.videoCodec(builderResult.encoder)
- } else if (streamType === 'AUDIO') {
+
+ if (scaleFilterValue) {
+ localCommand.outputOption(`-vf ${getScaleFilter(builderResult.result)}=${scaleFilterValue}`)
+ }
+ } else if (streamType === 'audio') {
localCommand.audioCodec(builderResult.encoder)
}
- command.addOutputOptions(builderResult.result.outputOptions)
+ applyEncoderOptions(localCommand, builderResult.result)
addDefaultEncoderParams({ command: localCommand, encoder: builderResult.encoder, fps })
}
return localCommand
}
-function presetCopy (command: ffmpeg.FfmpegCommand): ffmpeg.FfmpegCommand {
+function presetCopy (command: FfmpegCommand): FfmpegCommand {
return command
.format('mp4')
.videoCodec('copy')
.audioCodec('copy')
}
-function presetOnlyAudio (command: ffmpeg.FfmpegCommand): ffmpeg.FfmpegCommand {
+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: FFMPEG_NICE.TRANSCODING, cwd: CONFIG.STORAGE.TMP_DIR })
+ 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
return command
}
-async function runCommand (command: ffmpeg.FfmpegCommand, onEnd?: Function) {
+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 (onEnd) onEnd()
+ if (silent !== true) logger.error('Error in ffmpeg.', { stdout, stderr })
- logger.error('Error in transcoding job.', { stdout, stderr })
rej(err)
})
- command.on('end', () => {
- if (onEnd) onEnd()
+ command.on('end', (stdout, stderr) => {
+ logger.debug('FFmpeg command ended.', { stdout, stderr, shellCommand })
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 }))
+ })
+ }
+
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
+}