seth-public/ws4kp-to-hls
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Load Time Improvements

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This commit is contained in:
sethwv-alt
2025-11-25 12:30:17 -05:00
parent 5209e8cf26
commit 36ff1f2698
3 changed files with 20 additions and 16 deletions
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12
src/ffmpegConfig.js
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@@ -90,7 +90,7 @@ async function buildFFmpegArgs({ fps, useMusic, musicPath, inputFormat = 'jpeg',
...(captureAtHigherFps ? ['-r', fps.toString()] : []),
'-tune', 'zerolatency',
'-pix_fmt', 'yuv420p',
'-g', (fps * 2).toString(), // Keyframe every 2 seconds for 2s segments
'-g', fps.toString(), // Keyframe every 1 second for 1s segments
'-bf', '0', // No B-frames for lower latency
'-x264opts', 'nal-hrd=cbr:no-scenecut', // Constant bitrate, no scene detection
'-b:v', '2500k', // Target bitrate for stable encoding
@@ -109,8 +109,8 @@ async function buildFFmpegArgs({ fps, useMusic, musicPath, inputFormat = 'jpeg',
'-max_interleave_delta', '500000', // Increased for smoother transitions (500ms)
'-err_detect', 'ignore_err', // Continue on minor audio errors
'-f', 'hls',
'-hls_time', '2', // 2-second segments for better buffering
'-hls_list_size', '10', // Keep more segments in playlist for slower clients
'-hls_time', '1', // 1-second segments for faster startup
'-hls_list_size', '3', // Minimal segments for faster startup
'-hls_flags', 'omit_endlist+program_date_time+independent_segments',
'-hls_segment_type', 'mpegts',
'-hls_start_number_source', 'epoch',
@@ -141,15 +141,15 @@ async function buildFFmpegArgs({ fps, useMusic, musicPath, inputFormat = 'jpeg',
...(captureAtHigherFps ? ['-r', fps.toString()] : []),
'-tune', 'zerolatency',
'-pix_fmt', 'yuv420p',
'-g', (fps * 2).toString(), // Keyframe every 2 seconds for 2s segments
'-g', fps.toString(), // Keyframe every 1 second for 1s segments
'-bf', '0',
'-x264opts', 'nal-hrd=cbr:no-scenecut',
'-b:v', '2500k',
'-maxrate', '2500k',
'-bufsize', '5000k',
'-f', 'hls',
'-hls_time', '2', // 2-second segments for better buffering
'-hls_list_size', '10', // Keep more segments in playlist for slower clients
'-hls_time', '1', // 1-second segments for faster startup
'-hls_list_size', '3', // Minimal segments for faster startup
'-hls_flags', 'omit_endlist+program_date_time+independent_segments',
'-hls_segment_type', 'mpegts',
'-hls_start_number_source', 'epoch',

5
src/pageLoader.js
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@@ -34,12 +34,9 @@ async function setupPage(browser, { width, height }) {
*/
async function waitForPageFullyLoaded(page, url) {
try {
// Wait for DOM content and stylesheet to load
// Wait for DOM content to load - no artificial delay, stream starts immediately
await page.goto(url, { waitUntil: 'domcontentloaded', timeout: 30000 });
// Wait a brief moment for stylesheet to apply
await new Promise(resolve => setTimeout(resolve, 500));
return true;
} catch (err) {
console.error('Page load error:', err.message);

19
src/streamHandler.js
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@@ -427,17 +427,24 @@ async function streamHandler(req, res, { useMusic = false, musicPath, lateGeocod
} catch (err) {}
ffmpegProcess.kill('SIGTERM');
// Wait for FFmpeg to terminate before cleaning up playlist
const currentProcess = ffmpegProcess;
const currentPlaylistFile = playlistFile;
setTimeout(() => {
if (ffmpegProcess && !ffmpegProcess.killed) {
ffmpegProcess.kill('SIGKILL');
if (currentProcess && !currentProcess.killed) {
currentProcess.kill('SIGKILL');
}
// Clean up per-stream playlist file after FFmpeg is terminated
if (currentPlaylistFile) {
try {
fs.unlinkSync(currentPlaylistFile);
} catch (err) {}
}
}, 5000);
ffmpegProcess = null;
}
// Clean up per-stream playlist file (rotated copy, not the shared one)
if (playlistFile) {
} else if (playlistFile) {
// FFmpeg already dead, safe to delete immediately
try {
fs.unlinkSync(playlistFile);
} catch (err) {}