apunkt/ASCILINE
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mirror of https://github.com/YusufB5/ASCILINE.git synced 2026-06-17 22:35:13 +02:00
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Implement high framerate, HDR mode, and latency improvements

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Added `--max-fps` flag to explicitly control max frame rate up to 120 FPS.
Introduced 1440p resolution support in `get_cols_from_res`.
Added Mode 6 to support 32M Colors with experimental HDR (display-p3).
Optimized CV2 capture and javascript buffer logic for live latency reduction.
Added yielding to Python async loop for high FPS encoding stability.
Updated README.md to represent these fork enhancements.
This commit is contained in:
taisrisk 2026-06-15 15:39:15 +00:00
parent 720dccb149
commit 9b6e379ee3
6 changed files with 55 additions and 40 deletions
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23
app.js
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@ -8,7 +8,7 @@
const player = document.getElementById('ascii-player');
const canvas = document.getElementById('ascii-canvas');
const ctx = canvas.getContext('2d');
let ctx = canvas.getContext('2d');
const statusEl = document.getElementById('status');
const container = document.getElementById('player-container');
const overlay = document.getElementById('play-overlay');
@ -19,7 +19,7 @@ const volumeSlider = document.getElementById('volume-slider');
let state = 'IDLE'; // IDLE | PLAYING | PAUSED
let ws = null;
const frameBuffer = [];
const BUFFER_SIZE = 4;
const BUFFER_SIZE = 2; // Reduced buffer size for lower latency
let codecDecoder = null; // Adaptive codec decoder (codec.js)
let targetFps = 24;
let frameInterval = 1000 / targetFps;
@ -166,6 +166,16 @@ function connectWebSocket() {
renderMode = parseInt(p[2]);
pixelMode = (p.length > 5 && parseInt(p[5]) === 1);
const currentQueueIndex = (p.length > 6) ? parseInt(p[6]) : null;
if (renderMode === 6) {
try {
// Re-initialize context for HDR
ctx = canvas.getContext('2d', { colorSpace: 'display-p3' });
} catch (e) {
console.warn('display-p3 not supported by browser, falling back to sRGB');
}
}
buildCanvas(parseInt(p[3]), parseInt(p[4]));
// Initialize adaptive codec decoder (pixel=3 bytes, ASCII color=4 bytes)
@ -239,7 +249,7 @@ function connectWebSocket() {
}
}
while (frameBuffer.length > BUFFER_SIZE * 5) frameBuffer.shift();
while (frameBuffer.length > BUFFER_SIZE * 3) frameBuffer.shift();
};
ws.onopen = () => { statusEl.textContent = 'Buffering...'; };
@ -279,12 +289,13 @@ function renderFrame(now) {
if (frameBuffer.length === 0) return;
// A/V Sync: Drop frames that are too far behind the master clock (catch up)
while (frameBuffer.length > 1 && frameBuffer[0].time < masterClock - 0.1) {
// Made more aggressive for lower latency live playback
while (frameBuffer.length > 1 && frameBuffer[0].time < masterClock - 0.05) {
frameBuffer.shift();
}
// A/V Sync: Wait if the frame is in the future
if (frameBuffer[0].time > masterClock + 0.05) {
if (frameBuffer[0].time > masterClock + 0.02) {
return;
}
@ -296,7 +307,7 @@ function renderFrame(now) {
currentFps = frameCount;
frameCount = 0;
lastFpsUpdate = now;
const modes = { 2: '512 Color', 3: '32K Color', 4: '262K Color', 5: '16M Ultra' };
const modes = { 2: '512 Color', 3: '32K Color', 4: '262K Color', 5: '16M Ultra', 6: '32M HDR' };
const label = (modes[renderMode] || 'B&W') + (pixelMode ? ' PIXEL' : '');
statusEl.textContent = `FPS: ${currentFps}/${Math.round(targetFps)} | Buf: ${frameBuffer.length} | ${label}`;
}