Crate ym2149_wasm 

WebAssembly bindings for YM2149 PSG emulator.

This crate provides WebAssembly bindings for playing YM2149 chiptune files directly in web browsers using the Web Audio API.

Features

• Load and play YM2-YM6 format files
• Load and play Arkos Tracker (.aks) files
• Load and play AY format files
• Playback control (play, pause, stop, seek)
• Volume control
• Metadata extraction (title, author, comments)
• Channel muting/solo
• Real-time waveform data for visualization

Example Usage (JavaScript)

import init, { Ym2149Player } from './ym2149_wasm.js';

async function playYmFile(fileData) {
    await init();

    const player = Ym2149Player.new(fileData);
    const metadata = player.get_metadata();
    console.log(`Playing: ${metadata.title} by ${metadata.author}`);

    player.play();
}

Module Organization

Internal modules handle:

• Metadata types and conversion functions
• Player wrappers for different file formats

Structs

Ym2149Player

Main YM2149 player for WebAssembly.

Constants

YM_SAMPLE_RATE_F32

Sample rate used for audio generation.

Functions

init_panic_hook

Set panic hook for better error messages in the browser console.