ffmpeg implemented

README.md

@@ -103,6 +103,33 @@ To change the default window size, edit `src-tauri/tauri.conf.json`:
 *   **WebView2 Error (Windows)**: If the app doesn't start on Windows, ensure the [Microsoft Edge WebView2 Runtime](https://developer.microsoft.com/en-us/microsoft-edge/webview2/) is installed.
 *   **Build Failures**: Try running `cargo update` inside the `src-tauri` folder to update Rust dependencies.
 
+## FFmpeg (Optional) for Native Playback
+
+Local/native playback uses an external **FFmpeg** binary to decode radio streams.
+
+### How the app finds FFmpeg
+
+At runtime it searches in this order:
+
+1. `RADIOPLAYER_FFMPEG` environment variable (absolute or relative path)
+2. Next to the application executable (Windows: `ffmpeg.exe`, macOS/Linux: `ffmpeg`)
+3. Common bundle resource folders relative to the executable:
+  - `resources/ffmpeg(.exe)`
+  - `Resources/ffmpeg(.exe)`
+  - `../resources/ffmpeg(.exe)`
+  - `../Resources/ffmpeg(.exe)`
+4. Your system `PATH`
+
+### Optional: download FFmpeg automatically (Windows)
+
+This is **opt-in** (it is not run automatically during build/run). It downloads a prebuilt FFmpeg zip and extracts `ffmpeg.exe` into `tools/ffmpeg/bin/ffmpeg.exe`.
+
+```bash
+npm run ffmpeg:download
+```
+
+Then run `npm run dev:native` (or `npm run build`) to copy FFmpeg into `src-tauri/resources/` for bundling.
+
 ## License
 
 [Add License Information Here]