# webAssemblyDemo

**Repository Path**: eric114/web-assembly-demo

## Basic Information

- **Project Name**: webAssemblyDemo
- **Description**: ffmpeg本地桌面版本webAssembly开发打包demo
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2026-01-20
- **Last Updated**: 2026-03-25

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# ffmpeg.wasm Electron App

This is a minimal Electron app that runs ffmpeg.wasm in the renderer using the browser build.

Run locally (development):

```bash
npm install
npm start
```

How it works:
- A small static HTTP server is started inside the main process (`main.js`) and serves `index.html` and the `node_modules` browser builds. This ensures the FFmpeg browser core and worker are loaded same-origin and avoids Node worker / blob URL issues.
- For production (packaged) builds this same approach is used (the app starts an internal local server on startup and loads from `http://127.0.0.1:<port>/index.html`).

Build (multi-platform):

```bash
npm run build              # Build for current platform
npm run build -- --win    # Windows only
npm run build -- --mac    # macOS only
npm run build -- --linux  # Linux only
```

Build targets:
- `portable` - Single .exe file (Windows), .app (macOS), AppImage (Linux)
- `nsis` - Windows installer
- `dmg` - macOS disk image
- `deb`, `rpm`, `AppImage` - Linux packages

To enable single-file portable builds, update `package.json`:

```json
"build": {
  "appId": "com.example.ffmpeg-wasm",
  "files": ["**/*"],
  "win": { "target": "portable" },
  "portable": { "artifactName": "${productName}.exe" }
}
```

Notes:
- Cross-platform builds must be run on the target OS (e.g., build Windows .exe on Windows)
- Packaging includes all project files by default due to the basic `files` pattern
- For higher security consider using a custom protocol (`app://`) and disabling `nodeIntegration` (already disabled). You can also move heavy work into the main process via IPC.