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import { FfprobeData } from 'fluent-ffmpeg'
import { getAudioStream, getVideoStream } from '@shared/ffmpeg'
import { logger } from '../logger'
import { forceNumber } from '@shared/core-utils'
export async function getVideoStreamCodec (path: string) {
const videoStream = await getVideoStream(path)
if (!videoStream) return ''
const videoCodec = videoStream.codec_tag_string
if (videoCodec === 'vp09') return 'vp09.00.50.08'
if (videoCodec === 'hev1') return 'hev1.1.6.L93.B0'
const baseProfileMatrix = {
avc1: {
High: '6400',
Main: '4D40',
Baseline: '42E0'
},
av01: {
High: '1',
Main: '0',
Professional: '2'
}
}
let baseProfile = baseProfileMatrix[videoCodec][videoStream.profile]
if (!baseProfile) {
logger.warn('Cannot get video profile codec of %s.', path, { videoStream })
baseProfile = baseProfileMatrix[videoCodec]['High'] // Fallback
}
if (videoCodec === 'av01') {
let level = videoStream.level.toString()
if (level.length === 1) level = `0${level}`
// Guess the tier indicator and bit depth
return `${videoCodec}.${baseProfile}.${level}M.08`
}
let level = forceNumber(videoStream.level).toString(16)
if (level.length === 1) level = `0${level}`
// Default, h264 codec
return `${videoCodec}.${baseProfile}${level}`
}
export async function getAudioStreamCodec (path: string, existingProbe?: FfprobeData) {
const { audioStream } = await getAudioStream(path, existingProbe)
if (!audioStream) return ''
const audioCodecName = audioStream.codec_name
if (audioCodecName === 'opus') return 'opus'
if (audioCodecName === 'vorbis') return 'vorbis'
if (audioCodecName === 'aac') return 'mp4a.40.2'
if (audioCodecName === 'mp3') return 'mp4a.40.34'
logger.warn('Cannot get audio codec of %s.', path, { audioStream })
return 'mp4a.40.2' // Fallback
}
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