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<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="UTF-8">
<title>動画プレイヤー</title>
<style>
body {
display: flex;
flex-direction: column;
align-items: center;
background-color: #f0f0f0;
font-family: sans-serif;
padding: 20px;
}
video {
max-width: 100%;
height: auto;
margin-bottom: 10px;
}
.controls {
display: flex;
flex-direction: column;
gap: 15px;
width: 100%;
max-width: 500px;
}
.control-group {
display: flex;
align-items: center;
justify-content: space-between;
gap: 10px;
}
input[type="range"] {
flex: 1;
}
input[type="number"] {
width: 60px;
}
</style>
</head>
<body>
<h1>動画プレイヤー</h1>
<video id="videoPlayer" src="v.mp4" controls></video>
<div class="controls">
<div class="control-group">
<label for="speedRange">再生速度：</label>
<input type="range" id="speedRange" min="0.0001" max="5" step="0.0001" value="1">
<input type="number" id="speedInput" min="0.0001" step="0.0001" value="1">
</div>
<div class="control-group">
<label for="loopCheckbox">ループ再生：</label>
<input type="checkbox" id="loopCheckbox" checked>
</div>
<button onclick="goFullscreen()">全画面</button>
</div>
<script>
const video = document.getElementById('videoPlayer');
const speedRange = document.getElementById('speedRange');
const speedInput = document.getElementById('speedInput');
const loopCheckbox = document.getElementById('loopCheckbox');
function updatePlaybackRate(value) {
const speed = parseFloat(value);
speedInput.value = speed;
speedRange.value = speed;
video.playbackRate = speed;
}
// スライダーイベント（input、change、mouseup すべて対応）
['input', 'change', 'mouseup'].forEach(eventName => {
speedRange.addEventListener(eventName, () => {
updatePlaybackRate(speedRange.value);
});
});
speedInput.addEventListener('input', () => {
updatePlaybackRate(speedInput.value);
});
loopCheckbox.addEventListener('change', () => {
video.loop = loopCheckbox.checked;
});
function goFullscreen() {
if (video.requestFullscreen) {
video.requestFullscreen();
} else if (video.webkitRequestFullscreen) {
video.webkitRequestFullscreen();
} else if (video.msRequestFullscreen) {
video.msRequestFullscreen();
}
}
video.addEventListener('loadedmetadata', () => {
updatePlaybackRate(speedRange.value);
video.loop = loopCheckbox.checked;
});
</script>
</body>
</html> |