lucianoandClaude Fable 5
19aab4e61e
recStart now carries the format and an optional maxMs; the output stops itself when the time is up (15/30/60/90s picker in the control UI), so a reel doesn't depend on a manual stop. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
560 lines
23 KiB
JavaScript
560 lines
23 KiB
JavaScript
// OUTPUT window: renders the visuals + overlays and runs the audio engine.
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// It receives commands from the control window via window.djv.onControl and
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// sends back reports (meters, fps, device list, play state).
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const $ = (s) => document.querySelector(s);
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const canvas = $('#gl');
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let viz;
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try {
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viz = new Visualizer(canvas);
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} catch (e) {
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document.body.innerHTML = '<div style="color:#fff;padding:40px;font-family:sans-serif">' +
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'Errore grafica:<br><pre>' + e.message + '</pre></div>';
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throw e;
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}
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const audio = new AudioEngine();
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let speed = 1.0;
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// Convert an absolute filesystem path into a file:// URL the renderer can load.
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function toFileURL(p) {
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return encodeURI('file://' + p).replace(/#/g, '%23').replace(/\?/g, '%3F');
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}
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// ---------------------------------------------------------------- overlays
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const imgLayer = $('#overlay-images');
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let images = [];
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let imgIndex = 0;
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let slideshow = false, slideshowTimer = null, slideshowMs = 5000;
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let beatPulse = true;
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let imgBlend = 'screen';
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function addImages(paths) {
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paths.forEach(p => {
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const img = document.createElement('img');
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img.src = toFileURL(p);
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img.style.mixBlendMode = imgBlend;
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imgLayer.appendChild(img);
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images.push(img);
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});
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if (images.length) showImage(images.length - paths.length);
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hideHint();
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}
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function showImage(i) {
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if (!images.length) return;
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imgIndex = (i + images.length) % images.length;
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images.forEach((im, idx) => im.classList.toggle('show', idx === imgIndex));
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}
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function clearImages() {
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images.forEach(im => im.remove());
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images = []; imgIndex = 0;
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}
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function restartSlideshow() {
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if (slideshowTimer) { clearInterval(slideshowTimer); slideshowTimer = null; }
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if (slideshow) slideshowTimer = setInterval(() => showImage(imgIndex + 1), slideshowMs);
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}
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// ---------------------------------------------------------------- recording
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// Records the output canvas (video) + the audio tap into a WebM stream that
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// main transcodes to MP4 at the chosen aspect ratio.
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let recorder = null, recording = false, pendingRecOpts = null, recAutoStop = null;
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let recCanvas = null, recCtx = null, composeRAF = null;
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function pickMime() {
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const cands = ['video/webm;codecs=vp9,opus', 'video/webm;codecs=vp8,opus', 'video/webm'];
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for (const m of cands) if (window.MediaRecorder && MediaRecorder.isTypeSupported(m)) return m;
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return 'video/webm';
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}
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// Composite the WebGL visual + DOM overlays (images, logos, ticker) into a 2D
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// canvas so the recording captures everything that's on screen, not just WebGL.
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function drawMediaFit(ctx, media, W, H, fit) {
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const mw = media.videoWidth || media.naturalWidth, mh = media.videoHeight || media.naturalHeight;
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if (!mw || !mh) { ctx.drawImage(media, 0, 0, W, H); return; }
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const scale = fit === 'contain' ? Math.min(W / mw, H / mh) : Math.max(W / mw, H / mh);
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const dw = mw * scale, dh = mh * scale;
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ctx.drawImage(media, (W - dw) / 2, (H - dh) / 2, dw, dh);
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}
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function composeFrame() {
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const W = recCanvas.width, H = recCanvas.height;
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const sx = W / window.innerWidth, sy = H / window.innerHeight;
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recCtx.globalAlpha = 1;
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recCtx.globalCompositeOperation = 'source-over';
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recCtx.clearRect(0, 0, W, H);
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recCtx.drawImage(canvas, 0, 0, W, H);
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if (bgVideo.classList.contains('show') && bgVideo.readyState >= 2 && bgVideo.videoWidth) {
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recCtx.globalAlpha = parseFloat(getComputedStyle(bgVideo).opacity) || 1;
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const bm = bgVideo.style.mixBlendMode;
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recCtx.globalCompositeOperation = (bm && bm !== 'normal') ? bm : 'source-over';
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try { drawMediaFit(recCtx, bgVideo, W, H, bgVideo.style.objectFit || 'cover'); } catch (e) {}
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recCtx.globalAlpha = 1;
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recCtx.globalCompositeOperation = 'source-over';
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}
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if (trackVideo.classList.contains('show') && trackVideo.readyState >= 2 && trackVideo.videoWidth) {
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recCtx.globalAlpha = parseFloat(getComputedStyle(trackVideo).opacity) || 1;
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const bm = trackVideo.style.mixBlendMode;
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recCtx.globalCompositeOperation = (bm && bm !== 'normal') ? bm : 'source-over';
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try { drawMediaFit(recCtx, trackVideo, W, H, trackVideo.style.objectFit || 'contain'); } catch (e) {}
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recCtx.globalAlpha = 1;
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recCtx.globalCompositeOperation = 'source-over';
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}
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for (const im of images) {
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if (!im.classList.contains('show')) continue;
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const r = im.getBoundingClientRect();
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recCtx.globalAlpha = parseFloat(getComputedStyle(im).opacity) || 1;
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const bm = im.style.mixBlendMode;
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recCtx.globalCompositeOperation = (bm && bm !== 'normal') ? bm : 'source-over';
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try { recCtx.drawImage(im, r.x * sx, r.y * sy, r.width * sx, r.height * sy); } catch (e) {}
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}
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recCtx.globalAlpha = 1;
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recCtx.globalCompositeOperation = 'source-over';
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if (sceneImage.classList.contains('show') && sceneImage.src) {
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const r = sceneImage.getBoundingClientRect();
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try { recCtx.drawImage(sceneImage, r.x * sx, r.y * sy, r.width * sx, r.height * sy); } catch (e) {}
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}
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for (const l of logos) {
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if (!l.classList.contains('show')) continue;
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const r = l.getBoundingClientRect();
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recCtx.globalAlpha = parseFloat(l.style.opacity || '1');
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try { recCtx.drawImage(l, r.x * sx, r.y * sy, r.width * sx, r.height * sy); } catch (e) {}
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}
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recCtx.globalAlpha = 1;
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if (ticker.classList.contains('show') || sideText.classList.contains('show')) {
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recCtx.textBaseline = 'middle';
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for (const span of tickerLetters()) {
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const txt = span.textContent;
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if (!txt || txt === ' ') continue;
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const r = span.getBoundingClientRect();
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if (r.right < 0 || r.left > window.innerWidth) continue;
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const cs = getComputedStyle(span);
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recCtx.globalAlpha = parseFloat(cs.opacity) || 1;
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recCtx.font = cs.fontWeight + ' ' + (parseFloat(cs.fontSize) * sy) + 'px ' + cs.fontFamily;
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recCtx.fillStyle = cs.color;
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recCtx.shadowColor = 'rgba(140,180,255,0.9)';
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recCtx.shadowBlur = 14 * sy;
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recCtx.fillText(txt, r.x * sx, (r.y + r.height / 2) * sy);
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recCtx.shadowBlur = 0;
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}
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recCtx.globalAlpha = 1;
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}
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composeRAF = requestAnimationFrame(composeFrame);
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}
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function stopCompose() {
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if (composeRAF) { cancelAnimationFrame(composeRAF); composeRAF = null; }
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}
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async function startRecording(opts) {
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if (recording) return;
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try {
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await djv.recStart();
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recCanvas = document.createElement('canvas');
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recCanvas.width = canvas.width;
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recCanvas.height = canvas.height;
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recCtx = recCanvas.getContext('2d');
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composeFrame();
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const vstream = recCanvas.captureStream(30);
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const astream = audio.recordDest.stream;
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const stream = new MediaStream([...vstream.getVideoTracks(), ...astream.getAudioTracks()]);
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recorder = new MediaRecorder(stream, { mimeType: pickMime(), videoBitsPerSecond: 12e6 });
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// Serialise chunk delivery: ondataavailable is async, so without a chain the
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// header chunk could be sent after a later one and corrupt the WebM.
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let chain = Promise.resolve();
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recorder.ondataavailable = (e) => {
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if (!e.data || !e.data.size) return;
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chain = chain.then(async () => djv.recChunk(new Uint8Array(await e.data.arrayBuffer())));
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};
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recorder.onstop = async () => {
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stopCompose();
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await chain; // ensure every chunk is flushed, in order, before muxing
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const res = await djv.recStop(pendingRecOpts || {});
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recording = false;
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djv.report({ type: 'recState', recording: false });
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if (res && res.ok) djv.report({ type: 'recSaved', path: res.path, name: res.name, url: res.url });
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else djv.report({ type: 'recError', message: (res && res.error) || 'errore sconosciuto' });
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};
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recorder.start(2000); // emit a chunk every 2s
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recording = true;
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// Reel mode: auto-stop after maxMs using the format chosen at start.
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if (opts && opts.maxMs > 0) {
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clearTimeout(recAutoStop);
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recAutoStop = setTimeout(() => stopRecording({ w: opts.w, h: opts.h }), opts.maxMs);
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}
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djv.report({ type: 'recState', recording: true });
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} catch (e) {
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stopCompose();
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djv.report({ type: 'recError', message: e.message });
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}
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}
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function stopRecording(opts) {
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clearTimeout(recAutoStop); recAutoStop = null;
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if (!recording || !recorder) return;
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pendingRecOpts = { w: opts && opts.w, h: opts && opts.h };
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recorder.stop();
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}
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// Custom SVG/image source for the "SVG/Immagine" effect family. The image
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// arrives as a data: URL (same-origin) so the canvas isn't tainted and the
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// pixels can be uploaded to a WebGL texture.
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function loadCustomTexture(dataUrl) {
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const img = new Image();
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img.onload = () => {
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const size = 1024;
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const cv = document.createElement('canvas');
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cv.width = cv.height = size;
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const ctx = cv.getContext('2d');
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const iw = img.width || 512, ih = img.height || 512;
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const s = Math.min(size / iw, size / ih);
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const w = iw * s, h = ih * s;
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ctx.clearRect(0, 0, size, size);
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ctx.drawImage(img, (size - w) / 2, (size - h) / 2, w, h);
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try { viz.setTexture(cv); hideHint(); }
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catch (e) { djv.report({ type: 'error', message: 'Texture SVG: ' + e.message }); }
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};
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img.onerror = () => djv.report({ type: 'error', message: 'SVG/immagine non caricata' });
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img.src = dataUrl;
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}
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const bgVideo = $('#bg-video');
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const trackVideo = $('#track-video');
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const sceneImage = $('#scene-image');
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// Two independent logos.
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const logos = [$('#logo-0'), $('#logo-1')];
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function setLogo(i, url) {
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if (!logos[i]) return;
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if (url) { logos[i].src = url; logos[i].classList.add('show'); hideHint(); }
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else { logos[i].classList.remove('show'); logos[i].removeAttribute('src'); }
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}
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const ticker = $('#ticker');
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const tickerTrack = $('#ticker-track');
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const tickCopies = ticker.querySelectorAll('.tick-copy');
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const sideText = $('#side-text');
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const sideCopies = sideText.querySelectorAll('.side-copy');
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let tickerVisible = false, tickerDir = 'h';
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function buildLetters(txt) {
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const full = (txt || '') + ' • ';
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let html = '';
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for (let i = 0; i < full.length; i++) {
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const c = full[i];
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const ch = c === ' ' ? ' ' : c.replace(/&/g, '&').replace(/</g, '<');
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html += '<span class="tl" style="--i:' + i + '">' + ch + '</span>';
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}
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return html;
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}
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function setTickerText(t) {
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const h = buildLetters(t);
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tickCopies.forEach(c => c.innerHTML = h);
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sideCopies.forEach(c => c.innerHTML = h);
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}
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function setTickerSpeed(m) { document.documentElement.style.setProperty('--ticker-dur', (18 / m) + 's'); }
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function tickerLetters() {
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let out = [];
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if (ticker.classList.contains('show')) out = out.concat([...tickerTrack.querySelectorAll('.tl')]);
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if (sideText.classList.contains('show')) out = out.concat([...sideText.querySelectorAll('.tl')]);
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return out;
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}
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function styleBoth(prop, value) { tickerTrack.style[prop] = value; sideText.style[prop] = value; }
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function updateTickerVis() {
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const sides = tickerDir === 'sides';
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ticker.classList.toggle('show', tickerVisible && !sides);
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sideText.classList.toggle('show', tickerVisible && sides);
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}
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ticker.classList.add('pos-bottom');
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ticker.classList.add('dir-h');
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setTickerSpeed(1);
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function hideHint() { $('#drop-hint').classList.add('hidden'); }
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// ---------------------------------------------------------------- audio devices
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// Probe duration (metadata only) for a list of file paths.
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function probeDurations(paths) {
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if (!paths.length) return;
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const results = [];
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let pending = paths.length;
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const finish = () => { if (--pending === 0) djv.report({ type: 'durations', list: results }); };
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paths.forEach(p => {
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// A <video> element reads duration for both audio and video files.
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const a = document.createElement('video');
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a.preload = 'metadata';
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a.onloadedmetadata = () => { results.push({ path: p, duration: isFinite(a.duration) ? a.duration : 0 }); finish(); };
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a.onerror = () => { results.push({ path: p, duration: 0 }); finish(); };
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a.src = toFileURL(p);
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});
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}
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async function reportDevices() {
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try {
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const inputs = await audio.listInputDevices();
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djv.report({ type: 'devices', list: inputs.map(d => ({ deviceId: d.deviceId, label: d.label })) });
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const outputs = await audio.listOutputDevices();
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djv.report({ type: 'outputs', list: outputs.map(d => ({ deviceId: d.deviceId, label: d.label })) });
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} catch (e) { /* ignore */ }
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}
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// ---------------------------------------------------------------- command bus
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djv.onControl(async (m) => {
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switch (m.type) {
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case 'effect':
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// A manual pick takes over from the Auto VJ.
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if (autoVj) { autoVj = false; djv.report({ type: 'autoVj', on: false }); }
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viz.setEffect(m.effect);
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break;
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case 'autoVj':
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autoVj = !!m.on;
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if (m.mode) avMode = m.mode;
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avFamilies = Array.isArray(m.families) ? m.families : avFamilies;
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if (autoVj) { avLastSwitch = 0; avBeatMark = audio.beatCount || 0; }
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djv.report({ type: 'autoVj', on: autoVj });
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break;
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case 'svg': loadCustomTexture(m.dataUrl); break;
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case 'recStart': startRecording(m); break;
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case 'recStop': stopRecording(m); break;
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case 'gain': audio.gain = m.value; break;
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case 'speed': speed = m.value; audio.scrollRate = m.value; break;
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case 'bandGain': audio[m.band + 'Gain'] = m.value; break;
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case 'outputDevice':
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try { await audio.setOutputDevice(m.deviceId || ''); }
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catch (e) { djv.report({ type: 'error', message: e.message }); }
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break;
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case 'loadFile':
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try {
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await audio.loadFile(toFileURL(m.path));
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hideHint();
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djv.report({ type: 'fileLoaded' });
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djv.report({ type: 'playState', playing: true });
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} catch (e) { djv.report({ type: 'error', message: e.message }); }
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break;
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case 'playTrack':
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try {
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// Switching to an audio track: stop/hide any playing video track.
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trackVideo.pause(); trackVideo.classList.remove('show');
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audio.setTrim(m.start || 0, m.end || 0);
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audio.onEnded = () => djv.report({ type: 'trackEnded' });
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await audio.loadFile(toFileURL(m.path), { loop: false, crossfade: m.crossfade || 0 });
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hideHint();
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djv.report({ type: 'playState', playing: true });
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} catch (e) { djv.report({ type: 'error', message: e.message }); }
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break;
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case 'playVideoTrack':
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try {
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audio.setTrim(m.start || 0, m.end || 0);
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audio.onEnded = () => djv.report({ type: 'trackEnded' });
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audio.attachVideo(trackVideo);
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trackVideo.loop = false; trackVideo.muted = false;
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// Force a fresh start even when re-selecting the same file:
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// reassigning the same src may not reload, so pause + load() resets it.
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trackVideo.pause();
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trackVideo.src = toFileURL(m.path);
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trackVideo.load();
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trackVideo.classList.add('show');
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await trackVideo.play();
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audio.seekToTrimStart(trackVideo);
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hideHint();
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djv.report({ type: 'playState', playing: true });
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} catch (e) { djv.report({ type: 'error', message: e.message }); }
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break;
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case 'playSilence':
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// Visual-only interlude: stop audio + hide the video, keep visuals going.
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try {
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trackVideo.pause(); trackVideo.classList.remove('show');
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audio.onEnded = null;
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audio.silence();
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hideHint();
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djv.report({ type: 'playState', playing: true });
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} catch (e) { djv.report({ type: 'error', message: e.message }); }
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break;
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case 'setTrim': audio.setTrim(m.start || 0, m.end || 0); break;
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case 'seek': {
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const el = audio.mediaEl;
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if (el && isFinite(el.duration) && el.duration > 0) {
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el.currentTime = Math.max(0, Math.min(el.duration - 0.05, m.time || 0));
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audio._trimFired = false; // re-arm the trim-end check after seeking
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}
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break;
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}
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case 'probeDurations': probeDurations(m.paths || []); break;
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case 'togglePlay': {
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const playing = audio.togglePlay();
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if (playing !== null) djv.report({ type: 'playState', playing });
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break;
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}
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case 'useInput':
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try { await audio.useInput(m.deviceId || null); hideHint(); await reportDevices(); }
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catch (e) { djv.report({ type: 'error', message: e.message }); }
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break;
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case 'refreshDevices': reportDevices(); break;
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case 'addImages': addImages(m.paths); break;
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case 'clearImages': clearImages(); break;
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case 'imgBlend': imgBlend = m.value; images.forEach(im => im.style.mixBlendMode = m.value); break;
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case 'slideshow': slideshow = m.on; restartSlideshow(); break;
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case 'slideshowInterval': slideshowMs = m.ms; restartSlideshow(); break;
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case 'imgSize': imgLayer.style.setProperty('--img-size', m.value); break;
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case 'imgBeat': beatPulse = m.on; break;
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case 'imgNext': showImage(imgIndex + 1); break;
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case 'imgPrev': showImage(imgIndex - 1); break;
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|
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case 'videoLoad':
|
||
bgVideo.src = toFileURL(m.path);
|
||
bgVideo.loop = true; bgVideo.muted = true;
|
||
bgVideo.classList.add('show');
|
||
bgVideo.play().catch(() => {});
|
||
hideHint();
|
||
break;
|
||
case 'videoToggle':
|
||
if (bgVideo.paused) bgVideo.play().catch(() => {}); else bgVideo.pause();
|
||
break;
|
||
case 'videoClear':
|
||
bgVideo.pause(); bgVideo.removeAttribute('src'); bgVideo.load();
|
||
bgVideo.classList.remove('show');
|
||
break;
|
||
case 'videoOpacity': bgVideo.style.opacity = m.value; break;
|
||
case 'videoFit': bgVideo.style.objectFit = m.value; break;
|
||
case 'videoBlend': bgVideo.style.mixBlendMode = m.value; break;
|
||
case 'trackVideoBlend': trackVideo.style.mixBlendMode = m.value; break;
|
||
case 'trackVideoOpacity': trackVideo.style.opacity = m.value; break;
|
||
case 'trackVideoFit': trackVideo.style.objectFit = m.value; break;
|
||
|
||
case 'sceneImage':
|
||
if (m.path) {
|
||
sceneImage.src = toFileURL(m.path);
|
||
const s = m.size || 60;
|
||
sceneImage.style.maxWidth = s + 'vw';
|
||
sceneImage.style.maxHeight = s + 'vh';
|
||
sceneImage.style.left = (m.x != null ? m.x : 50) + '%';
|
||
sceneImage.style.top = (m.y != null ? m.y : 50) + '%';
|
||
sceneImage.classList.add('show'); hideHint();
|
||
} else { sceneImage.classList.remove('show'); sceneImage.removeAttribute('src'); }
|
||
break;
|
||
case 'logo': setLogo(m.index, m.path ? toFileURL(m.path) : ''); break;
|
||
case 'logoX': logos[m.index].style.left = m.value + '%'; break;
|
||
case 'logoY': logos[m.index].style.top = m.value + '%'; break;
|
||
case 'logoSize': logos[m.index].style.width = m.value + 'vw'; break;
|
||
case 'logoOpacity': logos[m.index].style.opacity = m.value; break;
|
||
|
||
case 'tickerText': setTickerText(m.text); break;
|
||
case 'tickerOn': tickerVisible = m.on; updateTickerVis(); break;
|
||
case 'tickerPos':
|
||
ticker.classList.remove('pos-bottom', 'pos-top', 'pos-middle');
|
||
ticker.classList.add('pos-' + m.pos);
|
||
break;
|
||
case 'tickerSpeed': setTickerSpeed(m.mult); break;
|
||
case 'tickerDir':
|
||
tickerDir = m.value;
|
||
if (m.value !== 'sides') {
|
||
ticker.classList.remove('dir-h', 'dir-vup', 'dir-vdown');
|
||
ticker.classList.add('dir-' + m.value);
|
||
}
|
||
updateTickerVis();
|
||
break;
|
||
case 'tickerFont': styleBoth('fontFamily', m.value); break;
|
||
case 'tickerSize': styleBoth('fontSize', m.value + 'vh'); break;
|
||
case 'tickerWeight': styleBoth('fontWeight', m.on ? '800' : '400'); break;
|
||
case 'tickerColor': styleBoth('color', m.value); break;
|
||
case 'tickerFx':
|
||
[tickerTrack, sideText].forEach(el => {
|
||
el.classList.remove('fx-updown', 'fx-wave', 'fx-zoom', 'fx-flash', 'fx-rotate');
|
||
if (m.value && m.value !== 'none') el.classList.add('fx-' + m.value);
|
||
});
|
||
break;
|
||
}
|
||
});
|
||
|
||
// ---------------------------------------------------------------- render loop
|
||
const startTime = performance.now();
|
||
let frames = 0, fpsT = performance.now(), fps = 0, lastReport = 0, prevBeat = 0, lastProgress = 0;
|
||
|
||
// ---- Auto VJ: a director that adapts the visuals to the playing track ------
|
||
// Uses the engine's musical features (mood/bpm/drop/beatCount): switches preset
|
||
// every 16 beats (or ~14s without beats), immediately on a detected drop, and
|
||
// draws from pools of families that fit the current mood.
|
||
let autoVj = false, avLastSwitch = 0, avBeatMark = 0, avRecent = [];
|
||
const AV_POOLS = {
|
||
quiet: ['Cielo', 'Aurora', 'Mare', 'Montagne', 'Galassia', 'Nuvole', 'Fluido', 'Onde'],
|
||
groove: ['Plasma', 'Vortice', 'Truchet', 'Esagoni', 'Spirale', 'Cellule', 'Gyroide',
|
||
'Fluido', 'Fluido Onda', 'Fluido Vortici', 'Griglia Neon', 'Solidi 3D'],
|
||
peak: ['Julia', 'Iperspazio', 'Tunnel', 'Moiré', 'Fluido Anello', 'Fluido Fuoco',
|
||
'Vortice', 'Griglia Neon', 'Cristalli']
|
||
};
|
||
let avMode = 'smart', avFamilies = []; // 'smart' | 'all' | 'custom'
|
||
function avPick(mood) {
|
||
// Family pool: smart = curated per-mood lists; custom = the user's checklist
|
||
// (mood still shapes the speed variant); all = no family restriction.
|
||
let fams = null;
|
||
if (avMode === 'smart') fams = AV_POOLS[mood] || AV_POOLS.groove;
|
||
else if (avMode === 'custom' && avFamilies.length) fams = avFamilies;
|
||
const speedOk = (e) => (mood === 'peak' ? e.speed >= 1.0 : e.speed <= 1.4);
|
||
let cands = window.EFFECTS.list.filter(e => (!fams || fams.indexOf(e.familyName) >= 0) &&
|
||
speedOk(e) && avRecent.indexOf(e.name) < 0);
|
||
// A tight custom list can exhaust the speed filter: retry without it.
|
||
if (!cands.length) cands = window.EFFECTS.list.filter(e =>
|
||
(!fams || fams.indexOf(e.familyName) >= 0) && avRecent.indexOf(e.name) < 0);
|
||
const e = cands.length ? cands[Math.floor(Math.random() * cands.length)] : window.EFFECTS.list[0];
|
||
avRecent = [e.name].concat(avRecent).slice(0, 6); // don't repeat the last few
|
||
return e;
|
||
}
|
||
function avTick(now) {
|
||
if (!autoVj) return;
|
||
const dropNow = audio.drop === 1;
|
||
const due = (audio.beatCount - avBeatMark) >= 16 || (now - avLastSwitch) > 14000;
|
||
if (!due && !dropNow) return;
|
||
avBeatMark = audio.beatCount; avLastSwitch = now;
|
||
const mood = dropNow ? 'peak' : audio.mood;
|
||
const e = avPick(mood);
|
||
viz.setEffect(e);
|
||
djv.report({ type: 'autoVj', on: true, name: e.name, mood, bpm: audio.bpm || 0 });
|
||
}
|
||
|
||
function frame() {
|
||
const t = (performance.now() - startTime) / 1000;
|
||
audio.update();
|
||
const a = audio.values;
|
||
avTick(performance.now());
|
||
viz.render(t * speed, a);
|
||
|
||
// Report beat rising-edges so the control window can auto-cycle effects.
|
||
if (a.beat > 0.6 && prevBeat <= 0.6) djv.report({ type: 'beat' });
|
||
prevBeat = a.beat;
|
||
|
||
// Overlays react to audio.
|
||
imgLayer.style.setProperty('--beat-scale',
|
||
(beatPulse && images.length ? 1 + a.beat * 0.12 + a.bass * 0.05 : 1).toFixed(3));
|
||
tickerTrack.style.setProperty('--ticker-glow', (a.level * 24 + a.beat * 20).toFixed(0) + 'px');
|
||
|
||
// FPS + meter report to the control window (throttled to ~15 Hz).
|
||
frames++;
|
||
const now = performance.now();
|
||
if (now - fpsT > 500) { fps = frames * 1000 / (now - fpsT); frames = 0; fpsT = now; }
|
||
if (now - lastReport > 66) {
|
||
lastReport = now;
|
||
djv.report({ type: 'meters', bass: a.bass, mid: a.mid, treble: a.treble, fps });
|
||
}
|
||
// Stop at the trim end point if one is set.
|
||
audio.checkTrim();
|
||
// Playback progress for the currently playing file.
|
||
if (now - lastProgress > 400) {
|
||
lastProgress = now;
|
||
const el = audio.mediaEl;
|
||
if (el && !el.paused && isFinite(el.duration) && el.duration > 0) {
|
||
djv.report({ type: 'progress', currentTime: el.currentTime, duration: el.duration });
|
||
}
|
||
}
|
||
requestAnimationFrame(frame);
|
||
}
|
||
requestAnimationFrame(frame);
|
||
|
||
// Populate the device list once at startup so the control dropdown fills in.
|
||
reportDevices();
|