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Line 1: |
| - | <style>
| + | |
| - | * { margin: 0;}
| + | |
| - | body { font-family: helvetica; padding: 10px; }
| + | |
| - | input { width: 50px; }
| + | |
| - | /*video, canvas { display: block; }*/
| + | |
| - | p { margin-top: 20px;}
| + | |
| - | </style>
| + | |
| - | </head>
| + | |
| - | <body>
| + | |
| | <video height="360" width="480"> | | <video height="360" width="480"> |
| | <source src="assets/dizzy.mp4" /> | | <source src="assets/dizzy.mp4" /> |
| | <source src="assets/dizzy.ogv" /> | | <source src="assets/dizzy.ogv" /> |
| | </video><canvas></canvas> | | </video><canvas></canvas> |
| - | <p>
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| - | <input type="button" id="play" value="play">
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| - | <span id="position">00:00</span> / <span id="duration"></span>
| |
| - | </p>
| |
| - | <script src="/js/h5utils.js"></script>
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| - | <script>
| |
| - | var video = document.querySelector('video');
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| - | var togglePlay = document.querySelector('#play');
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| - | var position = document.querySelector('#position');
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| - | var canvas = document.querySelector('canvas');
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| - | var ctx = canvas.getContext('2d');
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| - |
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| - | addEvent(togglePlay, 'click', function () {
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| - | video.playbackRate = 0.5;
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| - | if (video.paused) {
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| - | if (video.ended) video.currentTime = 0;
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| - | video.play();
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| - | this.value = "pause";
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| - | } else {
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| - | video.pause();
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| - | this.value = "play";
| |
| - | }
| |
| - | });
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| - |
| |
| - | setInterval(function () {
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| - | position.innerHTML = asTime(video.currentTime);
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| - |
| |
| - | // ctx.restore();
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| - | ctx.drawImage(video, 0, 0, video.width, video.height, 0, 0, canvas.width, canvas.height);
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| - | }, 1000 / 15);
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| - |
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| - | addEvent(video, 'ended', function () {
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| - | togglePlay.value = "play";
| |
| - | });
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| - |
| |
| - | addEvent(video, 'canplay', function () {
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| - | video.muted = true;
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| - | document.querySelector('#duration').innerHTML = asTime(this.duration);
| |
| - | startCanvas();
| |
| - | });
| |
| - |
| |
| - |
| |
| - | function startCanvas() {
| |
| - | canvas.setAttribute('height', Math.floor(video.height));
| |
| - | canvas.setAttribute('width', Math.floor(video.width));
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| - |
| |
| - | ctx.translate(canvas.width/2, canvas.height/2);
| |
| - | ctx.scale(-1, 1);
| |
| - | ctx.translate(-canvas.width/2, -canvas.height/2);
| |
| - | ctx.drawImage(video, 0, 0, video.width, video.height, 0, 0, canvas.width, canvas.height);
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| - |
| |
| - | // var mirror = canvas.height * 0.6;
| |
| - | // var grad = ctx.createLinearGradient(0, 0, 0, mirror);
| |
| - | // grad.addColorStop(0, 'rgba(0, 0, 0, 0.5)');
| |
| - | // grad.addColorStop(1, 'rgba(0, 0, 0, 1)');
| |
| - | // ctx.fillStyle = grad;
| |
| - | // ctx.rect(0, 0, canvas.width, mirror);
| |
| - | // ctx.fill();
| |
| - | // ctx.save();
| |
| - | }
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| - |
| |
| - | function asTime(t) {
| |
| - | t = Math.round(t);
| |
| - | var s = t % 60;
| |
| - | var m = Math.round(t / 60);
| |
| - |
| |
| - | return two(m) + ':' + two(s);
| |
| - | }
| |
| - |
| |
| - | function two(s) {
| |
| - | s += "";
| |
| - | if (s.length < 2) s = "0" + s;
| |
| - | return s;
| |
| - | }
| |
| - | </script>
| |
| - | </body>
| |
"
