VC:One VCone

ryancat / colorConvert.js

Created May 9, 2018 06:10

Convert color from RGB to LAB, RGB to HEX, or vice versa

	/**
	* Convert a hex color string to RGB array
	* @param {String} hex Hex color string
	*/
	function hexToRgb(hex) {
	var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
	return result ? [
	parseInt(result[1], 16),
	parseInt(result[2], 16),
	parseInt(result[3], 16)

yohhoy / yuvrgb.md

Last active April 2, 2025 23:15

RGB <=> YCbCr(YPbPr) color space conversion

Y  = a * R + b * G + c * B
Cb = (B - Y) / d
Cr = (R - Y) / e

	BT.601	BT.709	BT.2020
a	0.299	0.2126	0.2627
b	0.587	0.7152	0.6780

OllieJones / h264tools.js

Created February 4, 2021 16:11

h.264: Create an 'avcC' atom from a sequence of NALUs emitted by MediaRecorder

	'use static'

	// noinspection JSUnusedLocalSymbols,JSUnusedGlobalSymbols
	/**
	* Tools for handling H.264 bitstream issues.
	*/

	/**
	* Handle the parsing and creation of "avcC" atoms.
	*/

nickferrando / smpte_hd_bars.sh

Created March 2, 2021 18:22

Generate SMPTE Color Bars/1kHz Test Tone with FFMPEG

	#Display Custom Message on STMPE Bars and Server's Local Time

	ffmpeg -re -f lavfi -i "smptehdbars=rate=30:size=1920x1080" \
	-f lavfi -i "sine=frequency=1000:sample_rate=48000" \
	-vf drawtext="text='YOUR MESSAGE %{localtime\:%X}':rate=30:x=(w-tw)/2:y=(h-lh)/2:fontsize=48:fontcolor=white:box=1:boxcolor=black" \
	-f flv -c:v h264 -profile:v baseline -pix_fmt yuv420p -preset ultrafast -tune zerolatency -crf 28 -g 60 -c:a aac \
	"rtmp://your_server_address/stream_key"

	#Display Custom Message on STMPE Bars and Time (HH:MM:MS)

ZiTAL / index.html

Last active September 10, 2023 12:11

js: videojs hls example

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset=utf-8 />
	<title>videojs-contrib-hls embed</title>

	<link href="https://vjs.zencdn.net/8.0.4/video-js.css" rel="stylesheet">
	<script src="https://vjs.zencdn.net/8.0.4/video.min.js"></script>
	<script src="https://unpkg.com/@videojs/[email protected]/dist/videojs-http-streaming.min.js"></script>