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fix: add verification and playback safeguards

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This commit is contained in:
ChindanaiNaKub 2026-06-12 23:14:11 +07:00
parent 312d5d6df0
commit 50a954c585
16 changed files with 1556 additions and 43 deletions
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34
app.js
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@ -42,10 +42,27 @@ let selectionBuffer = null;
let lastRenderTime = 0;
let frameCount = 0, currentFps = 0, lastFpsUpdate = 0;
let streamStartTime = 0;
let renderLoopId = null;
const CHAR_LUT = new Array(128);
for (let i = 0; i < 128; i++) CHAR_LUT[i] = String.fromCharCode(i);
function stopRenderLoop() {
if (renderLoopId !== null) {
cancelAnimationFrame(renderLoopId);
renderLoopId = null;
}
}
function beginRendering() {
if (renderLoopId !== null) return;
readyToRender = true;
streamStartTime = performance.now();
lastRenderTime = performance.now();
lastFpsUpdate = lastRenderTime;
renderLoopId = requestAnimationFrame(renderFrame);
}
// ═══════════════════════════════════════
// CANVAS SETUP
// ═══════════════════════════════════════
@ -163,25 +180,20 @@ function connectWebSocket() {
frameInterval = 1000 / targetFps;
renderMode = parseInt(p[2]);
pixelMode = (p.length > 5 && parseInt(p[5]) === 1);
const parsedAudioIndex = p.length > 6 ? parseInt(p[6], 10) : 0;
const audioIndex = Number.isFinite(parsedAudioIndex) ? parsedAudioIndex : 0;
buildCanvas(parseInt(p[3]), parseInt(p[4]));
// ── AUDIO READY GATE ──
// Buffer video frames but don't render until audio is ready.
// This prevents the 0.5s initial stutter.
stopRenderLoop();
readyToRender = false;
state = 'PLAYING';
const beginRendering = () => {
readyToRender = true;
streamStartTime = performance.now();
lastRenderTime = performance.now();
lastFpsUpdate = lastRenderTime;
requestAnimationFrame(renderFrame);
};
if (audioEl) {
audioEl.pause();
audioEl.src = '/audio?' + Date.now();
audioEl.src = `/audio/${audioIndex}?` + Date.now();
audioEl.volume = volumeSlider ? volumeSlider.value : 1.0;
audioEl.load();
audioEl.play().catch(() => {});
@ -246,8 +258,9 @@ function connectWebSocket() {
// ═══════════════════════════════════════
function renderFrame(now) {
renderLoopId = null;
if (state !== 'PLAYING' || !readyToRender) return;
requestAnimationFrame(renderFrame);
renderLoopId = requestAnimationFrame(renderFrame);
// ── MASTER CLOCK LOGIC ──
let masterClock;
@ -340,6 +353,7 @@ function renderFrame(now) {
function finishStream() {
state = 'IDLE';
stopRenderLoop();
if (ws) { ws.onclose = null; ws.close(); ws = null; }
if (audioEl) { audioEl.pause(); audioEl.src = ''; }
ctx.clearRect(0, 0, canvas.width, canvas.height);