import * as ffmpeg from 'fluent-ffmpeg'
import { dirname, join } from 'path'
-import { getTargetBitrate, getMaxBitrate, VideoResolution } from '../../shared/models/videos'
+import { getMaxBitrate, getTargetBitrate, VideoResolution } from '../../shared/models/videos'
import { FFMPEG_NICE, VIDEO_TRANSCODING_FPS } from '../initializers/constants'
import { processImage } from './image-utils'
import { logger } from './logger'
import { readFile, remove, writeFile } from 'fs-extra'
import { CONFIG } from '../initializers/config'
+/**
+ * A toolbox to play with audio
+ */
+namespace audio {
+ export const get = (videoPath: string) => {
+ // without position, ffprobe considers the last input only
+ // we make it consider the first input only
+ // if you pass a file path to pos, then ffprobe acts on that file directly
+ return new Promise<{ absolutePath: string, audioStream?: any }>((res, rej) => {
+
+ function parseFfprobe (err: any, data: ffmpeg.FfprobeData) {
+ if (err) return rej(err)
+
+ if ('streams' in data) {
+ const audioStream = data.streams.find(stream => stream['codec_type'] === 'audio')
+ if (audioStream) {
+ return res({
+ absolutePath: data.format.filename,
+ audioStream
+ })
+ }
+ }
+
+ return res({ absolutePath: data.format.filename })
+ }
+
+ return ffmpeg.ffprobe(videoPath, parseFfprobe)
+ })
+ }
+
+ export namespace bitrate {
+ const baseKbitrate = 384
+
+ const toBits = (kbits: number) => kbits * 8000
+
+ export const aac = (bitrate: number): number => {
+ switch (true) {
+ case bitrate > toBits(baseKbitrate):
+ return baseKbitrate
+
+ default:
+ return -1 // we interpret it as a signal to copy the audio stream as is
+ }
+ }
+
+ export const mp3 = (bitrate: number): number => {
+ /*
+ a 192kbit/sec mp3 doesn't hold as much information as a 192kbit/sec aac.
+ That's why, when using aac, we can go to lower kbit/sec. The equivalences
+ made here are not made to be accurate, especially with good mp3 encoders.
+ */
+ switch (true) {
+ case bitrate <= toBits(192):
+ return 128
+
+ case bitrate <= toBits(384):
+ return 256
+
+ default:
+ return baseKbitrate
+ }
+ }
+ }
+}
+
function computeResolutionsToTranscode (videoFileHeight: number) {
const resolutionsEnabled: number[] = []
const configResolutions = CONFIG.TRANSCODING.RESOLUTIONS
]
for (const resolution of resolutions) {
- if (configResolutions[ resolution + 'p' ] === true && videoFileHeight > resolution) {
+ if (configResolutions[resolution + 'p'] === true && videoFileHeight > resolution) {
resolutionsEnabled.push(resolution)
}
}
const videoCodec = videoStream.codec_tag_string
const baseProfileMatrix = {
- 'High': '6400',
- 'Main': '4D40',
- 'Baseline': '42E0'
+ High: '6400',
+ Main: '4D40',
+ Baseline: '42E0'
}
let baseProfile = baseProfileMatrix[videoStream.profile]
if (videoStream === null) return 0
for (const key of [ 'avg_frame_rate', 'r_frame_rate' ]) {
- const valuesText: string = videoStream[ key ]
+ const valuesText: string = videoStream[key]
if (!valuesText) continue
const [ frames, seconds ] = valuesText.split('/')
type: 'only-audio'
}
-type TranscodeOptions = HLSTranscodeOptions
+type TranscodeOptions =
+ HLSTranscodeOptions
| VideoTranscodeOptions
| MergeAudioTranscodeOptions
| OnlyAudioTranscodeOptions
.output(options.outputPath)
if (options.type === 'quick-transcode') {
- command = await buildQuickTranscodeCommand(command)
+ command = buildQuickTranscodeCommand(command)
} else if (options.type === 'hls') {
command = await buildHLSCommand(command, options)
} else if (options.type === 'merge-audio') {
command = await buildAudioMergeCommand(command, options)
} else if (options.type === 'only-audio') {
- command = await buildOnlyAudioCommand(command, options)
+ command = buildOnlyAudioCommand(command, options)
} else {
command = await buildx264Command(command, options)
}
// check video params
if (videoStream == null) return false
- if (videoStream[ 'codec_name' ] !== 'h264') return false
- if (videoStream[ 'pix_fmt' ] !== 'yuv420p') return false
+ if (videoStream['codec_name'] !== 'h264') return false
+ if (videoStream['pix_fmt'] !== 'yuv420p') return false
if (fps < VIDEO_TRANSCODING_FPS.MIN || fps > VIDEO_TRANSCODING_FPS.MAX) return false
if (bitRate > getMaxBitrate(resolution.videoFileResolution, fps, VIDEO_TRANSCODING_FPS)) return false
// check audio params (if audio stream exists)
if (parsedAudio.audioStream) {
- if (parsedAudio.audioStream[ 'codec_name' ] !== 'aac') return false
+ if (parsedAudio.audioStream['codec_name'] !== 'aac') return false
- const maxAudioBitrate = audio.bitrate[ 'aac' ](parsedAudio.audioStream[ 'bit_rate' ])
- if (maxAudioBitrate !== -1 && parsedAudio.audioStream[ 'bit_rate' ] > maxAudioBitrate) return false
+ const maxAudioBitrate = audio.bitrate['aac'](parsedAudio.audioStream['bit_rate'])
+ if (maxAudioBitrate !== -1 && parsedAudio.audioStream['bit_rate'] > maxAudioBitrate) return false
}
return true
return command
}
-async function buildOnlyAudioCommand (command: ffmpeg.FfmpegCommand, options: OnlyAudioTranscodeOptions) {
- command = await presetOnlyAudio(command)
+function buildOnlyAudioCommand (command: ffmpeg.FfmpegCommand, options: OnlyAudioTranscodeOptions) {
+ command = presetOnlyAudio(command)
return command
}
-async function buildQuickTranscodeCommand (command: ffmpeg.FfmpegCommand) {
- command = await presetCopy(command)
+function buildQuickTranscodeCommand (command: ffmpeg.FfmpegCommand) {
+ command = presetCopy(command)
command = command.outputOption('-map_metadata -1') // strip all metadata
.outputOption('-movflags faststart')
async function buildHLSCommand (command: ffmpeg.FfmpegCommand, options: HLSTranscodeOptions) {
const videoPath = getHLSVideoPath(options)
- if (options.copyCodecs) command = await presetCopy(command)
+ if (options.copyCodecs) command = presetCopy(command)
else command = await buildx264Command(command, options)
command = command.outputOption('-hls_time 4')
return localCommand
}
-/**
- * A toolbox to play with audio
- */
-namespace audio {
- export const get = (videoPath: string) => {
- // without position, ffprobe considers the last input only
- // we make it consider the first input only
- // if you pass a file path to pos, then ffprobe acts on that file directly
- return new Promise<{ absolutePath: string, audioStream?: any }>((res, rej) => {
-
- function parseFfprobe (err: any, data: ffmpeg.FfprobeData) {
- if (err) return rej(err)
-
- if ('streams' in data) {
- const audioStream = data.streams.find(stream => stream[ 'codec_type' ] === 'audio')
- if (audioStream) {
- return res({
- absolutePath: data.format.filename,
- audioStream
- })
- }
- }
-
- return res({ absolutePath: data.format.filename })
- }
-
- return ffmpeg.ffprobe(videoPath, parseFfprobe)
- })
- }
-
- export namespace bitrate {
- const baseKbitrate = 384
-
- const toBits = (kbits: number) => kbits * 8000
-
- export const aac = (bitrate: number): number => {
- switch (true) {
- case bitrate > toBits(baseKbitrate):
- return baseKbitrate
-
- default:
- return -1 // we interpret it as a signal to copy the audio stream as is
- }
- }
-
- export const mp3 = (bitrate: number): number => {
- /*
- a 192kbit/sec mp3 doesn't hold as much information as a 192kbit/sec aac.
- That's why, when using aac, we can go to lower kbit/sec. The equivalences
- made here are not made to be accurate, especially with good mp3 encoders.
- */
- switch (true) {
- case bitrate <= toBits(192):
- return 128
-
- case bitrate <= toBits(384):
- return 256
-
- default:
- return baseKbitrate
- }
- }
- }
-}
-
/**
* Standard profile, with variable bitrate audio and faststart.
*
// of course this is far from perfect, but it might save some space in the end
localCommand = localCommand.audioCodec('aac')
- const audioCodecName = parsedAudio.audioStream[ 'codec_name' ]
+ const audioCodecName = parsedAudio.audioStream['codec_name']
- if (audio.bitrate[ audioCodecName ]) {
- const bitrate = audio.bitrate[ audioCodecName ](parsedAudio.audioStream[ 'bit_rate' ])
+ if (audio.bitrate[audioCodecName]) {
+ const bitrate = audio.bitrate[audioCodecName](parsedAudio.audioStream['bit_rate'])
if (bitrate !== undefined && bitrate !== -1) localCommand = localCommand.audioBitrate(bitrate)
}
}
return localCommand
}
-async function presetCopy (command: ffmpeg.FfmpegCommand): Promise<ffmpeg.FfmpegCommand> {
+function presetCopy (command: ffmpeg.FfmpegCommand): ffmpeg.FfmpegCommand {
return command
.format('mp4')
.videoCodec('copy')
.audioCodec('copy')
}
-async function presetOnlyAudio (command: ffmpeg.FfmpegCommand): Promise<ffmpeg.FfmpegCommand> {
+function presetOnlyAudio (command: ffmpeg.FfmpegCommand): ffmpeg.FfmpegCommand {
return command
.format('mp4')
.audioCodec('copy')
projects / github / Chocobozzz / PeerTube.git / blobdiff