Web-based Winamp controller for CarPC � Go backend, mobile-first UI

Jan Svabenik 7e508507b6 feat: WebSocket + WASAPI spectrum visualisation WebSocket (/ws): - Replaces 2s HTTP polling with persistent WS connection - Server pushes status updates every 500ms to all clients - Server pushes FFT spectrum frames at ~30fps - Bidirectional: client sends commands as JSON ({cmd, delta, level, ...}) - Auto-reconnect on disconnect (3s backoff) - Status pushed immediately on connect Visualisation (internal/viz/capture.go): - WASAPI loopback capture via IAudioClient (same COM approach as volume) - Captures whatever is playing through the default render device - 2048-sample Hanning-windowed FFT (pure Go, no deps) - 64 log-spaced bars, 40Hz-20kHz - Fast attack / slow decay smoothing per bar Canvas renderer (app.js): - requestAnimationFrame loop, DPR-aware resize - Green->yellow->red HSL gradient by amplitude - Peak-hold indicators with 1.2%/frame decay - Graceful: canvas stays dark if no viz data (Winamp paused/stopped) Architecture: - internal/server/hub.go: gorilla/websocket hub (register/broadcast/unregister) - internal/server/server.go: full //go:build windows, REST API kept for debug - frontend uses WS for all commands, REST only for killist list fetch Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>		1 månad sedan
.claude	feat: initial project scaffold	1 månad sedan
internal	feat: WebSocket + WASAPI spectrum visualisation	1 månad sedan
web/static	feat: WebSocket + WASAPI spectrum visualisation	1 månad sedan
.gitignore	feat: initial project scaffold	1 månad sedan
README.md	feat: initial project scaffold	1 månad sedan
config.yaml.example	feat: initial project scaffold	1 månad sedan
go.mod	feat: WebSocket + WASAPI spectrum visualisation	1 månad sedan
go.sum	feat: WebSocket + WASAPI spectrum visualisation	1 månad sedan

README.md

roadamp 🚗🎵

Web-based Winamp controller for CarPC setups — optimized for tablets and phones.

A modern rebuild of a classic Delphi CarPC project, written in Go with a responsive web interface.

Features

Play / Pause / Stop
Next / Previous Track
Seek ±15s / ±120s (with auto-mute during seek)
Master volume control
Track progress display
KillList — auto-skip unwanted tracks
Resume — restores position after restart

Stack

Backend: Go (HTTP server + Winamp IPC via Windows messages)
Frontend: Vanilla JS / HTML / CSS — no framework, mobile-first

Getting Started

go build ./cmd/roadamp
./roadamp.exe
# Open http://localhost:8080 on your tablet/phone

Configuration

Copy config.yaml.example to config.yaml and adjust:

port: 8080
winamp_path: "C:\\Program Files\\Winamp\\Winamp.exe"