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<!DOCTYPE html> |
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<html lang="ja"> |
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<head> |
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<meta charset="UTF-8"> |
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<meta name="viewport" content="width=device-width, initial-scale=1.0"> |
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<title>音声動画プレイヤー</title> |
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<style> |
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body { |
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font-family: 'Arial', sans-serif; |
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background-color: #0a192f; |
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color: #e6f1ff; |
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margin: 0; |
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padding: 20px; |
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display: flex; |
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flex-direction: column; |
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align-items: center; |
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} |
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h1 { |
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color: #64ffda; |
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text-align: center; |
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margin-bottom: 30px; |
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border-bottom: 1px solid #64ffda; |
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padding-bottom: 10px; |
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width: 100%; |
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} |
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.container { |
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display: flex; |
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flex-direction: column; |
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width: 100%; |
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max-width: 800px; |
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background-color: #112240; |
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border-radius: 10px; |
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padding: 20px; |
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box-shadow: 0 0 20px rgba(100, 255, 218, 0.2); |
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} |
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.video-container { |
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position: relative; |
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width: 100%; |
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margin-bottom: 20px; |
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} |
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video { |
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width: 100%; |
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border-radius: 5px; |
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background-color: #000; |
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} |
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.controls { |
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display: flex; |
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flex-direction: column; |
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gap: 15px; |
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margin-bottom: 20px; |
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} |
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.audio-controls { |
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display: flex; |
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flex-direction: column; |
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gap: 10px; |
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margin-bottom: 15px; |
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} |
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.audio-item { |
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display: flex; |
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align-items: center; |
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gap: 10px; |
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} |
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.audio-item label { |
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min-width: 50px; |
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color: #64ffda; |
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} |
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input[type="range"] { |
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flex-grow: 1; |
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height: 8px; |
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-webkit-appearance: none; |
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background: #1e2a47; |
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border-radius: 5px; |
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outline: none; |
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} |
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input[type="range"]::-webkit-slider-thumb { |
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-webkit-appearance: none; |
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width: 18px; |
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height: 18px; |
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background: #64ffda; |
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border-radius: 50%; |
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cursor: pointer; |
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} |
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.settings { |
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background-color: #1e2a47; |
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padding: 15px; |
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border-radius: 5px; |
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margin-bottom: 20px; |
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} |
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.setting-item { |
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display: flex; |
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justify-content: space-between; |
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align-items: center; |
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margin-bottom: 10px; |
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} |
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.setting-item:last-child { |
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margin-bottom: 0; |
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} |
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.setting-item label { |
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color: #ccd6f6; |
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} |
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input[type="number"], input[type="checkbox"], select { |
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background-color: #112240; |
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border: 1px solid #64ffda; |
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color: #e6f1ff; |
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padding: 5px; |
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border-radius: 3px; |
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} |
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button { |
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background-color: #0a192f; |
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color: #64ffda; |
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border: 1px solid #64ffda; |
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padding: 10px 20px; |
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border-radius: 5px; |
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cursor: pointer; |
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font-weight: bold; |
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transition: all 0.3s; |
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} |
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button:hover { |
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background-color: #64ffda; |
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color: #0a192f; |
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} |
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.buttons { |
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display: flex; |
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gap: 10px; |
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justify-content: center; |
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} |
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.tech-decoration { |
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width: 100%; |
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height: 2px; |
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background: linear-gradient(90deg, transparent, #64ffda, transparent); |
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margin: 20px 0; |
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} |
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</style> |
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</head> |
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<body> |
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<h1>音声動画プレイヤー</h1> |
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<div class="container"> |
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<div class="video-container"> |
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<video id="video" muted> |
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<source src="v.mp4" type="video/mp4"> |
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</video> |
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</div> |
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<div class="tech-decoration"></div> |
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<div class="settings"> |
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<h2>設定</h2> |
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<div class="setting-item"> |
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<label for="start-time">再生開始秒数:</label> |
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<input type="number" id="start-time" min="0" value="0" step="0.1"> |
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</div> |
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<div class="setting-item"> |
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<label for="end-time">再生終了秒数:</label> |
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<input type="number" id="end-time" min="0" value="0" step="0.1"> |
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</div> |
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<div class="setting-item"> |
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<label for="loop">ループ再生:</label> |
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<input type="checkbox" id="loop"> |
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</div> |
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<div class="setting-item"> |
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<label for="playback-rate">再生速度:</label> |
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<select id="playback-rate"> |
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<option value="0.25">0.25x</option> |
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<option value="0.5">0.5x</option> |
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<option value="0.75">0.75x</option> |
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<option value="1" selected>1x</option> |
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<option value="1.25">1.25x</option> |
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<option value="1.5">1.5x</option> |
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<option value="2">2x</option> |
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<option value="3">3x</option> |
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</select> |
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</div> |
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<div class="setting-item"> |
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<label for="global-volume">全体音量係数:</label> |
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<input type="range" id="global-volume" min="0" max="3" step="0.1" value="1"> |
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<span id="global-volume-value">1</span> |
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</div> |
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</div> |
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<div class="tech-decoration"></div> |
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<div class="audio-controls"> |
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<h2>音声コントロール</h2> |
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<div class="audio-item"> |
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<label>p.mp3</label> |
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<input type="range" class="volume-slider" data-audio="p" min="0" max="1" step="0.01" value="1"> |
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<span class="volume-value">1</span> |
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</div> |
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<div class="audio-item"> |
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<label>a.mp3</label> |
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<input type="range" class="volume-slider" data-audio="a" min="0" max="1" step="0.01" value="1"> |
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<span class="volume-value">1</span> |
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</div> |
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<div class="audio-item"> |
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<label>t.mp3</label> |
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<input type="range" class="volume-slider" data-audio="t" min="0" max="1" step="0.01" value="1"> |
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<span class="volume-value">1</span> |
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</div> |
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<div class="audio-item"> |
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<label>s.mp3</label> |
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<input type="range" class="volume-slider" data-audio="s" min="0" max="1" step="0.01" value="1"> |
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<span class="volume-value">1</span> |
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</div> |
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<div class="audio-item"> |
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<label>k.mp3</label> |
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<input type="range" class="volume-slider" data-audio="k" min="0" max="1" step="0.01" value="1"> |
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<span class="volume-value">1</span> |
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</div> |
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</div> |
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<div class="tech-decoration"></div> |
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<div class="buttons"> |
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<button id="play-btn">再生</button> |
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<button id="pause-btn">一時停止</button> |
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<button id="stop-btn">停止</button> |
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</div> |
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</div> |
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<script> |
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document.addEventListener('DOMContentLoaded', function() { |
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const video = document.getElementById('video'); |
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const playBtn = document.getElementById('play-btn'); |
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const pauseBtn = document.getElementById('pause-btn'); |
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const stopBtn = document.getElementById('stop-btn'); |
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const startTimeInput = document.getElementById('start-time'); |
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const endTimeInput = document.getElementById('end-time'); |
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const loopCheckbox = document.getElementById('loop'); |
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const playbackRateSelect = document.getElementById('playback-rate'); |
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const globalVolumeSlider = document.getElementById('global-volume'); |
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const globalVolumeValue = document.getElementById('global-volume-value'); |
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const volumeSliders = document.querySelectorAll('.volume-slider'); |
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const volumeValues = document.querySelectorAll('.volume-value'); |
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const audioContext = new (window.AudioContext || window.webkitAudioContext)(); |
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const audioBuffers = {}; |
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const audioSources = {}; |
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const gainNodes = {}; |
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const audioFiles = ['p', 'a', 't', 's', 'k']; |
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let videoDuration = 0; |
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let isPlaying = false; |
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video.addEventListener('loadedmetadata', function() { |
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videoDuration = video.duration; |
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endTimeInput.value = videoDuration.toFixed(1); |
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endTimeInput.max = videoDuration; |
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startTimeInput.max = videoDuration - 0.1; |
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}); |
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function loadAudioFiles() { |
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audioFiles.forEach(file => { |
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fetch(`${file}.mp3`) |
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.then(response => response.arrayBuffer()) |
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.then(arrayBuffer => audioContext.decodeAudioData(arrayBuffer)) |
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.then(audioBuffer => { |
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audioBuffers[file] = audioBuffer; |
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gainNodes[file] = audioContext.createGain(); |
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gainNodes[file].gain.value = 1; |
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}) |
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.catch(error => console.error(`Error loading ${file}.mp3:`, error)); |
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}); |
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} |
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function playMedia() { |
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if (isPlaying) return; |
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const startTime = parseFloat(startTimeInput.value) || 0; |
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let endTime = parseFloat(endTimeInput.value) || videoDuration; |
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const loop = loopCheckbox.checked; |
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const playbackRate = parseFloat(playbackRateSelect.value); |
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const globalVolume = parseFloat(globalVolumeSlider.value); |
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endTime = Math.min(endTime, videoDuration); |
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video.currentTime = startTime; |
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video.playbackRate = playbackRate; |
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video.muted = true; |
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audioFiles.forEach(file => { |
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if (audioBuffers[file]) { |
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if (audioSources[file]) { |
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audioSources[file].stop(); |
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} |
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const source = audioContext.createBufferSource(); |
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source.buffer = audioBuffers[file]; |
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const volumeSlider = document.querySelector(`.volume-slider[data-audio="${file}"]`); |
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const volume = parseFloat(volumeSlider.value) * globalVolume; |
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gainNodes[file].gain.value = volume; |
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source.connect(gainNodes[file]); |
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gainNodes[file].connect(audioContext.destination); |
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source.start(0, startTime, endTime - startTime); |
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source.loop = loop; |
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if (loop) { |
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source.loopStart = startTime; |
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source.loopEnd = endTime; |
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} |
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audioSources[file] = source; |
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} |
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}); |
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video.play(); |
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isPlaying = true; |
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video.ontimeupdate = function() { |
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if (video.currentTime >= endTime) { |
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if (!loop) { |
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stopMedia(); |
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} else { |
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video.currentTime = startTime; |
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} |
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} |
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}; |
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} |
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function pauseMedia() { |
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if (!isPlaying) return; |
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video.pause(); |
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audioFiles.forEach(file => { |
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if (audioSources[file]) { |
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audioSources[file].stop(); |
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audioSources[file] = null; |
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} |
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}); |
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isPlaying = false; |
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} |
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function stopMedia() { |
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pauseMedia(); |
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video.currentTime = parseFloat(startTimeInput.value) || 0; |
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} |
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playBtn.addEventListener('click', playMedia); |
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pauseBtn.addEventListener('click', pauseMedia); |
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stopBtn.addEventListener('click', stopMedia); |
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volumeSliders.forEach((slider, index) => { |
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slider.addEventListener('input', function() { |
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const value = parseFloat(this.value); |
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volumeValues[index].textContent = value.toFixed(2); |
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if (isPlaying && audioSources[this.dataset.audio] && gainNodes[this.dataset.audio]) { |
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const globalVolume = parseFloat(globalVolumeSlider.value); |
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gainNodes[this.dataset.audio].gain.value = value * globalVolume; |
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} |
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}); |
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}); |
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globalVolumeSlider.addEventListener('input', function() { |
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const value = parseFloat(this.value); |
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globalVolumeValue.textContent = value.toFixed(1); |
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if (isPlaying) { |
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audioFiles.forEach(file => { |
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if (gainNodes[file]) { |
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const volumeSlider = document.querySelector(`.volume-slider[data-audio="${file}"]`); |
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const volume = parseFloat(volumeSlider.value) * value; |
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gainNodes[file].gain.value = volume; |
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} |
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}); |
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} |
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}); |
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loadAudioFiles(); |
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}); |
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</script> |
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</body> |
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</html> |
