RefreshVideos/reference.html at master · dotimothy/RefreshVideos · GitHub

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<!DOCTYPE html>
<html>

<body onload="check()">

<video hidden controls id="test">
  <source src="media/fountain.mp4" type="video/mp4">
</video>

<p>Not Meant For Public to See. Reload Page to Change FPS.</p>
Play at <input type="number" id="FPS" value="240"> FPS
<button onclick="startVideo()">Play</button>
<button onclick="pause()">Pause</button>
<button onclick="reset()">Reset</button>
<button onclick="mute()">Mute</button>
<button onclick="unmute()">Unmute</button>
<button onclick="fullScreen()">Fullscreen</button>
<button onclick="loop()">Loop</button>


<br></br>

<canvas id="window" width="640px" height="480px" style="border:1px solid #d3d3d3;"></canvas>

<p>Speeds</p>
<button onclick="changeSpeed(0.125)">12.5%</button>
<button onclick="changeSpeed(0.25)">25%</button>
<button onclick="changeSpeed(0.5)">50%</button>
<button onclick="changeSpeed(1)">100%</button>
<button onclick="changeSpeed(2)">200%</button>

<p>Video Filters</p>
<button onclick="switchVideoOn('age')">Age</button>
<button onclick="switchVideoOn('blackAndwhite')">Black and White</button>
<button onclick="switchVideoOn('detectEdge')">Detect Edge</button>
<button onclick="switchVideoOn()">Revert</button>

<p>Audio Filters</p>
<button onclick="bassBoost()">Bass Boosted</button>
<button onclick="theater()">Theater</button>
<button>Revert</button>


</body>

<style>
	body {
		margin:0;
	}
</style>

<script>
var fps;
var v = document.getElementById("test");
var c = document.getElementById("window");

function check() {
	var pass = 0;
	//var pass = prompt("Enter the secret code");
	if(pass != "refresh" && 0) {
		confirm("Access Denied");
		location.replace("https://dotimothy.github.io/RefreshVideos/")
	}
	else {
		//confirm("Access Granted. Enjoy!");
	}
}

function changeSpeed(rate) {
	v.playbackRate = rate;
}


function getFPS() {
	fps = document.getElementById("FPS").value;
}

function pause() {
	v.pause();
}

function mute() {
	v.volume = 0;
}

function unmute() {
	v.volume = 0.5;
}


function reset() {
	pause();
	v.currentTime = 0;
	startVideo();
}


function drawVideoAudio() {
	var ctx = c.getContext("2d");
	ctx.drawImage(v,5,5,c.width-10,c.height-10);
	chooseVideoFilter();
	chooseAudioFilter();
}

function startVideo() {
	getFPS();

	var ctx = c.getContext("2d");
	var time = 1000 / fps;
	var i;

	v.play();
	v.addEventListener("play", function() {i = window.setInterval(drawVideoAudio,time);}, true);
	v.addEventListener("pause", function() {window.clearInterval(i);}, true);
	v.addEventListener("ended", function() {clearInterval(i);}, true);
}

function loop() {
	startVideo();
	setTimeout(loop,11000*(1/v.playbackRate));
	reset();
}

//video effects
var ageChoose = false;
var blackAndwhiteChoose = false;
var edgeDetectChoose = false;


function switchVideoOn(filter) {
	if(filter == 'age') {
		ageChoose = true;
		blackAndwhiteChoose = false;
		edgeDetectChoose = false;
	}
	else if(filter == 'blackAndwhite') {
		blackAndwhiteChoose = true;
		ageChoose = false;
		edgeDetectChoose = false;
	}
	else if(filter == 'detectEdge') {
		edgeDetectChoose = true;
		ageChoose = false;
		blackAndwhiteChoose = false;
	}
	else {
		ageChoose = false;
		blackAndwhiteChoose = false;
		edgeDetectChoose = false;
	}
}

function chooseVideoFilter() {
	if(ageChoose == true) {
		age();
	}
	else if(blackAndwhiteChoose == true) {
		blackAndwhite();
	}
	else if(edgeDetectChoose == true) {
		detectEdge();
	}

}

//functions for video filters
function age() {
	var canvas = document.getElementById("window");
	var ctx = canvas.getContext("2d");
	var imgData = ctx.getImageData(0,0,canvas.width,canvas.height);
	console.log(imgData);
	for(var i = 0; i < imgData.data.length; i += 4) {
		var red = imgData.data[i];
		var green = imgData.data[i + 1];
		var blue = imgData.data[i + 2];
		var alpha = imgData.data[i + 3];
		var age = (red + green + blue) / 5;
		imgData.data[i] = age * 1.6;
		imgData.data[i + 1] = age * 1.6;
		imgData.data[i + 2] = age;
		imgData.data[i + 3] = alpha;
	}
	 ctx.putImageData(imgData, 0, 0);
	}

function blackAndwhite() {
	var canvas = document.getElementById("window");
	var ctx = canvas.getContext("2d");
	var imgData = ctx.getImageData(0,0,canvas.width,canvas.height);
	console.log(imgData);
	for(var i = 0; i < imgData.data.length; i += 4) {
		var red = imgData.data[i];
		var green = imgData.data[i + 1];
		var blue = imgData.data[i + 2];
		var alpha = imgData.data[i + 3];
		var grayscale = (red + green + blue) / 3;
		imgData.data[i] = grayscale;
		imgData.data[i + 1] = grayscale;
		imgData.data[i + 2] = grayscale;
		imgData.data[i + 3] = alpha;
	}
	 ctx.putImageData(imgData, 0, 0);
}

function detectEdge() {
	blackAndwhite();
	var canvas = document.getElementById("window");
	var ctx = canvas.getContext("2d");
	var imgData = ctx.getImageData(0,0,canvas.width,canvas.height);
	ctx.putImageData(imgData, 0, 0);
	var data = imgData.data;
	var width = imgData.width;
	var limit = data.length;
	for(var i = 0; i < limit; i++) {
		if( i%4 == 3 ) {
			continue;
		}
		data[i] = 127 + 2*data[i] - data[i + 4] - data[i + width*4];
	}
	ctx.putImageData(imgData, 0, 0);
}

var bassChoose = false;
var theaterChoose = false;

function switchAudioOn(filter) {
  if(filter == 'bassboosted') {
    bassChoose = true;
    theaterChoose = false;
  }
  else if(filter == 'theater') {
    theaterChoose = true;
    bassChoose = false;
  }
  else {
    bassChoose = false;
    theaterChoose = false;
  }
  chooseAudioFilter();
}

function chooseAudioFilter() {
  if(bassChose == true) {
    bassBoost();
  }
  else if(theaterChoose = true) {
    theater();
  }
}

  function bassBoost() {
    var context = new AudioContext(),
      audioSource = context.createMediaElementSource(document.getElementById("test")),
      filter = context.createBiquadFilter();
    audioSource.connect(filter);
    filter.connect(context.destination);

    filter.type = "lowshelf";
    filter.frequency.value = 200;
    filter.gain.value = 15;
  }

  function theater() {
        var context = new AudioContext(),
      audioSource = context.createMediaElementSource(document.getElementById("test")),
      filter = context.createBiquadFilter();
    audioSource.connect(filter);
    filter.connect(context.destination);

    filter.type = "highpass";
    filter.frequency.value = 400;
    filter.gain.value = 10;
  }

  var fullSwitch = true;

  function fullScreen() {
  	if(fullSwitch == true) {
  		c.width = window.innerWidth;
  		c.height = window.innerHeight;
  		fullSwitch = false;
  	}
  	else {
  		c.width = 640;
  		c.height = 480;
  		fullSwitch = true;

  	}

  }
</script>


</html>