singuerinc · January 24, 2014 16:31
diff --git a/gistfile1.html b/gistfile1.html
 <!DOCTYPE html>
 <html>
 <head>
    <title></title>
    <style type="text/css">

        body {
            margin: 0;
        }

        video#video {
            display: block;
        }

        div#time, div#frames, div#binary {
            font-family: "Arial", sans-serif;
            font-size: 60px;
            font-weight: bold;
            float: left;
            margin-left: 40px;
        }

        div#binary {
            font-family: "Courier New", sans-serif;
            font-weight: bold;
        }

        #btn {
            float: left;
            font-size: 20px;
        }

    </style>
 </head>
 <body>
 <video id="video" src="http://s3-eu-west-1.amazonaws.com/singuerinc--cdn/blog-files/day-022/test_film_counter.mp4" width="1282" height="720" autoplay></video>
 <button id="btn">Play/Pause</button>
 <div id="time"></div>
 <div id="frames"></div>
 <div id="binary"></div>

 <script type="text/javascript" src="stats.min.js"></script>
 <script type="text/javascript">
    var stats = new Stats();
    stats.setMode(0); // 0: fps, 1: ms

    // Align top-left
    stats.domElement.style.position = 'absolute';
    stats.domElement.style.right = '0px';
    stats.domElement.style.top = '0px';

    document.body.appendChild(stats.domElement);


    (function () {
        var lastTime = 0;
        var vendors = ['ms', 'moz', 'webkit', 'o'];
        for (var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
            window.requestAnimationFrame = window[vendors[x] + 'RequestAnimationFrame'];
            window.cancelRequestAnimationFrame = window[vendors[x] +
                    'CancelRequestAnimationFrame'];
        }
        if (!window.requestAnimationFrame)
            window.requestAnimationFrame = function (callback) {
                var currTime = new Date().getTime();
                var timeToCall = Math.max(0, 16 - (currTime - lastTime));
                var id = window.setTimeout(function () {
                            callback(currTime + timeToCall);
                        },
                        timeToCall);
                lastTime = currTime + timeToCall;
                return id;
            };

        if (!window.cancelAnimationFrame)
            window.cancelAnimationFrame = function (id) {
                clearTimeout(id);
            };
    }());

    var btn = document.getElementById('btn'),
            video = document.getElementById('video'),
            canvas = document.createElement('canvas'),
            time = document.getElementById('time'),
            frames = document.getElementById('frames'),
            binary = document.getElementById('binary'),
            ctx = canvas.getContext('2d'),
            i, lastTime,
            paused = true,
            videoWidth = 1282,
            videoHeight = 720,
            videoFrameRate = 25,
            numPixToRead = 12;

    canvas.width = 1;
    canvas.height = 720;

    var draw = function () {

        stats.begin();

        // draw the top-right 1px x 48px of the video in a tmp canvas
        ctx.drawImage(video, videoWidth - 1, 0, 1, numPixToRead * 4, 0, 0, 1, numPixToRead * 4);

        // get pixels data
        var pixData = ctx.getImageData(0, 0, 1, numPixToRead).data;

        var binStr = '';
        for (var i = 0, n = pixData.length; i < n; i += 4) {
            //the pixel data has 4 values by pixel read (r,g,b,a)

            // after the video compression the pixels
            // aren't black (0) or white (255) so we need to
            // separate them by luminosity and convert in 0s and 1s
            var binNum = pixData[i] > 127 ? 1 : 0;

            // store binary num in reverse order
            binStr = binNum + '' + binStr;
        }

        // the FRAME number
        // convert binary string into decimal
        var frame = parseInt(binStr, 2);

        var t = Math.floor(frame / videoFrameRate);
        var secs = Math.floor(t / 60) + ':' + (t % 60);

        binary.innerText = binStr;
        frames.innerText = frame.toString();
        time.innerText = secs;

        stats.end();
    };

    var animate = function () {
        draw();
        requestAnimationFrame(animate);
    };

    video.addEventListener('loadeddata', function () {
        paused = false;
        animate();
    }, false);

    btn.addEventListener('click', function (e) {
        if (paused) {
            paused = false;
            video.play();
        }
        else {
            paused = true;
            video.pause();
        }
    });

 </script>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	<title></title>
	<style type="text/css">

	body {
	margin: 0;
	}

	video#video {
	display: block;
	}

	div#time, div#frames, div#binary {
	font-family: "Arial", sans-serif;
	font-size: 60px;
	font-weight: bold;
	float: left;
	margin-left: 40px;
	}

	div#binary {
	font-family: "Courier New", sans-serif;
	font-weight: bold;
	}

	#btn {
	float: left;
	font-size: 20px;
	}

	</style>
	</head>
	<body>
	<video id="video" src="http://s3-eu-west-1.amazonaws.com/singuerinc--cdn/blog-files/day-022/test_film_counter.mp4" width="1282" height="720" autoplay></video>
	<button id="btn">Play/Pause</button>
	<div id="time"></div>
	<div id="frames"></div>
	<div id="binary"></div>

	<script type="text/javascript" src="stats.min.js"></script>
	<script type="text/javascript">
	var stats = new Stats();
	stats.setMode(0); // 0: fps, 1: ms

	// Align top-left
	stats.domElement.style.position = 'absolute';
	stats.domElement.style.right = '0px';
	stats.domElement.style.top = '0px';

	document.body.appendChild(stats.domElement);


	(function () {
	var lastTime = 0;
	var vendors = ['ms', 'moz', 'webkit', 'o'];
	for (var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
	window.requestAnimationFrame = window[vendors[x] + 'RequestAnimationFrame'];
	window.cancelRequestAnimationFrame = window[vendors[x] +
	'CancelRequestAnimationFrame'];
	}
	if (!window.requestAnimationFrame)
	window.requestAnimationFrame = function (callback) {
	var currTime = new Date().getTime();
	var timeToCall = Math.max(0, 16 - (currTime - lastTime));
	var id = window.setTimeout(function () {
	callback(currTime + timeToCall);
	},
	timeToCall);
	lastTime = currTime + timeToCall;
	return id;
	};

	if (!window.cancelAnimationFrame)
	window.cancelAnimationFrame = function (id) {
	clearTimeout(id);
	};
	}());

	var btn = document.getElementById('btn'),
	video = document.getElementById('video'),
	canvas = document.createElement('canvas'),
	time = document.getElementById('time'),
	frames = document.getElementById('frames'),
	binary = document.getElementById('binary'),
	ctx = canvas.getContext('2d'),
	i, lastTime,
	paused = true,
	videoWidth = 1282,
	videoHeight = 720,
	videoFrameRate = 25,
	numPixToRead = 12;

	canvas.width = 1;
	canvas.height = 720;

	var draw = function () {

	stats.begin();

	// draw the top-right 1px x 48px of the video in a tmp canvas
	ctx.drawImage(video, videoWidth - 1, 0, 1, numPixToRead * 4, 0, 0, 1, numPixToRead * 4);

	// get pixels data
	var pixData = ctx.getImageData(0, 0, 1, numPixToRead).data;

	var binStr = '';
	for (var i = 0, n = pixData.length; i < n; i += 4) {
	//the pixel data has 4 values by pixel read (r,g,b,a)

	// after the video compression the pixels
	// aren't black (0) or white (255) so we need to
	// separate them by luminosity and convert in 0s and 1s
	var binNum = pixData[i] > 127 ? 1 : 0;

	// store binary num in reverse order
	binStr = binNum + '' + binStr;
	}

	// the FRAME number
	// convert binary string into decimal
	var frame = parseInt(binStr, 2);

	var t = Math.floor(frame / videoFrameRate);
	var secs = Math.floor(t / 60) + ':' + (t % 60);

	binary.innerText = binStr;
	frames.innerText = frame.toString();
	time.innerText = secs;

	stats.end();
	};

	var animate = function () {
	draw();
	requestAnimationFrame(animate);
	};

	video.addEventListener('loadeddata', function () {
	paused = false;
	animate();
	}, false);

	btn.addEventListener('click', function (e) {
	if (paused) {
	paused = false;
	video.play();
	}
	else {
	paused = true;
	video.pause();
	}
	});

	</script>
	</body>
	</html>