luzadev/djAudiovisualizaerPi
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Mobile: live external audio input (USB) source selector

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Expose the engine's live-input mode on the remote: an "Sorgente audio"
selector in the Audio tab lists the input devices the output reports and
switches between File/Playlist and a live USB capture (useInput); picking
File again stops the input. Grant the kiosk getUserMedia access with
--use-fake-ui-for-media-stream so device enumeration/labels work without a
prompt. Make reportDevices resilient (per-probe timeout, always report even
an empty list) so the UI gets feedback when no input is connected yet.

The Pi 5 has no audio input — a USB (line) sound card is required; visuals
react to the source while the audio stays on the mixer.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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lucianoandClaude Opus 4.8 committed 2026-06-30 12:27:41 +02:00
1 parent ec4aecaf7c
commit 6657d1afab
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+41 -6
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public/js/output.js
+10 -6
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@@ -299,12 +299,16 @@ function probeDurations(paths) {
}
async function reportDevices() {
try {
const inputs = await audio.listInputDevices();
djv.report({ type: 'devices', list: inputs.map(d => ({ deviceId: d.deviceId, label: d.label })) });
const outputs = await audio.listOutputDevices();
djv.report({ type: 'outputs', list: outputs.map(d => ({ deviceId: d.deviceId, label: d.label })) });
} catch (e) { /* ignore */ }
// Always answer, even with an empty list: getUserMedia can hang/reject when no
// input device exists (e.g. before a USB sound card is plugged in), so guard
// each probe with a timeout and still report so the control UI isn't left hanging.
const withTimeout = (p, ms) => Promise.race([p, new Promise((_, rej) => setTimeout(() => rej(new Error('timeout')), ms))]);
let inputs = [];
try { inputs = await withTimeout(audio.listInputDevices(), 3000); } catch (e) { /* none/blocked */ }
djv.report({ type: 'devices', list: inputs.map(d => ({ deviceId: d.deviceId, label: d.label })) });
let outputs = [];
try { outputs = await withTimeout(audio.listOutputDevices(), 3000); } catch (e) { /* none/blocked */ }
djv.report({ type: 'outputs', list: outputs.map(d => ({ deviceId: d.deviceId, label: d.label })) });
}
// ---------------------------------------------------------------- command bus