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