From 9243994c5953fd4409d02bf9514a9f6af56bec2a Mon Sep 17 00:00:00 2001
From: WakelessSloth56 <wsloth56@foxmail.com>
Date: Sat, 11 Jan 2025 11:59:59 +0800
Subject: [PATCH] feat: wasm plugin throws error if file size over 4GB

#5097
---
 registry/lib/plugins/video/download/wasm-output/handler.ts | 6 +++++-
 registry/lib/plugins/video/download/wasm-output/index.ts   | 2 +-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/registry/lib/plugins/video/download/wasm-output/handler.ts b/registry/lib/plugins/video/download/wasm-output/handler.ts
index 4be359a0dd..1f39bad3ff 100644
--- a/registry/lib/plugins/video/download/wasm-output/handler.ts
+++ b/registry/lib/plugins/video/download/wasm-output/handler.ts
@@ -2,7 +2,7 @@ import { DownloadPackage, PackageEntry } from '@/core/download'
 import { meta } from '@/core/meta'
 import { getComponentSettings } from '@/core/settings'
 import { Toast } from '@/core/toast'
-import { formatPercent } from '@/core/utils/formatters'
+import { formatFileSize, formatPercent } from '@/core/utils/formatters'
 import { title as pluginTitle } from '.'
 import type { Options } from '../../../../components/video/download'
 import { DownloadVideoAction } from '../../../../components/video/download/types'
@@ -139,6 +139,10 @@ export async function run(action: DownloadVideoAction, muxWithMetadata: boolean)
       throw new Error('仅支持 DASH 格式视频和音频')
     }
 
+    if (video.size + audio.size > 4294967295) {
+      throw new Error(`仅支持合并 4GB 内的音视频（${formatFileSize(video.size + audio.size)}）`)
+    }
+
     await single(
       video.title,
       video.url,
diff --git a/registry/lib/plugins/video/download/wasm-output/index.ts b/registry/lib/plugins/video/download/wasm-output/index.ts
index d5039f2592..97ae9d1513 100644
--- a/registry/lib/plugins/video/download/wasm-output/index.ts
+++ b/registry/lib/plugins/video/download/wasm-output/index.ts
@@ -19,7 +19,7 @@ export const plugin: PluginMetadata = {
       outputs.push({
         name: 'wasm',
         displayName: 'WASM',
-        description: `${desc}。运行过程中请勿关闭页面，初次使用或清除缓存后需要加载约 30 MB 的 WASM 文件。`,
+        description: `${desc}。运行过程中请勿关闭页面，初次使用或清除缓存后需要加载约 30 MB 的 WASM 文件。由于浏览器限制，仅支持合并 4GB 以内的音视频。`,
         runAction: async (action, instance) => {
           try {
             await run(action, instance.muxWithMetadata)