mirror of
https://github.com/the1812/Bilibili-Evolved.git
synced 2025-11-04 21:22:45 +08:00
78 lines
2.0 KiB
TypeScript
78 lines
2.0 KiB
TypeScript
import { DownloadPackage } from '@/core/download'
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import { meta } from '@/core/meta'
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import { Toast } from '@/core/toast'
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import { FFmpeg } from './ffmpeg'
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import { getCacheOrGet, httpGet, toastProgress, toBlobUrl } from './utils'
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const ffmpeg = new FFmpeg()
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async function load(toast: Toast) {
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await ffmpeg.load({
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workerLoadURL: toBlobUrl(
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await getCacheOrGet(
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'ffmpeg-worker',
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meta.compilationInfo.altCdn.library.ffmpeg.worker,
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toastProgress(toast, '正在加载 FFmpeg Worker'),
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),
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'text/javascript',
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),
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coreURL: toBlobUrl(
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await getCacheOrGet(
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'ffmpeg-core',
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meta.compilationInfo.altCdn.library.ffmpeg.core,
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toastProgress(toast, '正在加载 FFmpeg Core'),
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),
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'text/javascript',
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),
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wasmURL: toBlobUrl(
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await getCacheOrGet(
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'ffmpeg-wasm',
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meta.compilationInfo.altCdn.library.ffmpeg.wasm,
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toastProgress(toast, '正在加载 FFmpeg WASM'),
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),
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'application/wasm',
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),
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})
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}
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export async function run(
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name: string,
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toast: Toast,
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videoUrl: string,
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audioUrl: string,
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isFlac: boolean,
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) {
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if (!ffmpeg.loaded) {
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await load(toast)
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}
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ffmpeg.writeFile('video', await httpGet(videoUrl, toastProgress(toast, '正在下载视频流')))
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ffmpeg.writeFile('audio', await httpGet(audioUrl, toastProgress(toast, '正在下载音频流')))
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toast.message = '混流中……'
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const outputExt = isFlac ? 'mkv' : 'mp4'
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name = isFlac ? name.replace(/.[^/.]+$/, `.${outputExt}`) : name
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await ffmpeg.exec([
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'-i',
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'video',
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'-i',
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'audio',
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'-c:v',
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'copy',
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'-c:a',
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isFlac ? 'flac' : 'copy',
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'-f',
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isFlac ? 'matroska' : 'mp4',
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`output.${outputExt}`,
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])
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const output = await ffmpeg.readFile(`output.${outputExt}`)
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const outputBlob = new Blob([output], {
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type: isFlac ? 'video/x-matroska' : 'video/mp4',
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})
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toast.message = '完成!'
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toast.duration = 1500
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await DownloadPackage.single(name, outputBlob)
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}
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