9b724f33e3
## New Skill: video-comparer v1.0.0 - Compare original and compressed videos with interactive HTML reports - Calculate quality metrics (PSNR, SSIM) for compression analysis - Generate frame-by-frame visual comparisons (slider, side-by-side, grid) - Extract video metadata (codec, resolution, bitrate, duration) - Multi-platform FFmpeg support with security features ## transcript-fixer Enhancements - Add async AI processor for parallel processing - Add connection pool management for database operations - Add concurrency manager and rate limiter - Add audit log retention and database migrations - Add health check and metrics monitoring - Add comprehensive test suite (8 new test files) - Enhance security with domain and path validators ## Marketplace Updates - Update marketplace version from 1.8.0 to 1.9.0 - Update skills count from 15 to 16 - Update documentation (README.md, CLAUDE.md, CHANGELOG.md) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
894 lines
30 KiB
HTML
894 lines
30 KiB
HTML
<!DOCTYPE html>
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<html lang="zh-CN">
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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>视频质量对比分析</title>
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<link rel="stylesheet" href="https://unpkg.com/img-comparison-slider@8/dist/styles.css">
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<script defer src="https://unpkg.com/img-comparison-slider@8/dist/index.js"></script>
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<style>
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* {
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}
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body {
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font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
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background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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min-height: 100vh;
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padding: 20px;
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}
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.container {
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max-width: 1400px;
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margin: 0 auto;
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background: white;
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border-radius: 20px;
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box-shadow: 0 20px 60px rgba(0,0,0,0.3);
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overflow: hidden;
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}
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.header {
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background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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color: white;
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padding: 30px;
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text-align: center;
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}
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.header h1 {
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font-size: 32px;
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margin-bottom: 10px;
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}
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.header p {
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font-size: 16px;
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opacity: 0.9;
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}
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.analysis-section {
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padding: 30px;
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}
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.metrics-grid {
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display: grid;
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grid-template-columns: repeat(4, 1fr);
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gap: 20px;
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margin-bottom: 30px;
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}
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@media (max-width: 1200px) {
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.metrics-grid {
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grid-template-columns: repeat(2, 1fr);
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}
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}
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@media (max-width: 600px) {
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.metrics-grid {
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grid-template-columns: 1fr;
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}
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}
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.metric-card {
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background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
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padding: 20px;
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border-radius: 15px;
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text-align: center;
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transition: transform 0.3s ease;
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}
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.metric-card:hover {
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transform: translateY(-5px);
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}
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.metric-card h3 {
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color: #667eea;
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font-size: 14px;
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margin-bottom: 10px;
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text-transform: uppercase;
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}
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.metric-value {
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font-size: 24px;
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font-weight: bold;
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color: #333;
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margin-bottom: 5px;
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line-height: 1.3;
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word-break: keep-all;
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white-space: nowrap;
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overflow: hidden;
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text-overflow: ellipsis;
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}
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.metric-value.multiline {
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white-space: normal;
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font-size: 20px;
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line-height: 1.4;
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overflow: visible;
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}
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.metric-subtitle {
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font-size: 12px;
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color: #666;
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}
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.comparison-section {
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margin-top: 30px;
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}
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.comparison-container {
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width: 100%;
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background: #000;
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border-radius: 15px;
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overflow: auto;
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margin-bottom: 20px;
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display: flex;
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justify-content: center;
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position: relative;
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max-height: 900px;
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}
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img-comparison-slider {
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width: auto;
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max-width: none;
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--divider-width: 3px;
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--divider-color: #ffffff;
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--default-handle-opacity: 1;
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--default-handle-width: 50px;
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transition: all 0.3s ease;
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}
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img-comparison-slider img {
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width: auto;
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object-fit: contain;
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display: block;
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transition: height 0.3s ease;
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}
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.zoom-controls {
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display: flex;
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align-items: center;
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gap: 12px;
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background: white;
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padding: 12px 20px;
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border-radius: 50px;
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box-shadow: 0 2px 10px rgba(0,0,0,0.1);
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margin: 0 auto 20px;
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max-width: fit-content;
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}
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.zoom-btn {
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width: 36px;
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height: 36px;
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padding: 0;
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background: #f5f7fa;
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color: #667eea;
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border: none;
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border-radius: 50%;
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cursor: pointer;
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font-size: 16px;
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font-weight: bold;
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transition: all 0.2s ease;
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display: flex;
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align-items: center;
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justify-content: center;
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}
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.zoom-btn:hover {
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background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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color: white;
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transform: scale(1.1);
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}
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.zoom-btn:active {
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transform: scale(0.95);
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}
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.zoom-btn.reset {
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width: auto;
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padding: 0 16px;
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border-radius: 18px;
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font-size: 13px;
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}
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#zoomSlider {
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-webkit-appearance: none;
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appearance: none;
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width: 180px;
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height: 6px;
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border-radius: 3px;
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background: #e9ecef;
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outline: none;
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transition: all 0.2s;
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}
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#zoomSlider:hover {
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background: #dee2e6;
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}
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#zoomSlider::-webkit-slider-thumb {
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-webkit-appearance: none;
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appearance: none;
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width: 18px;
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height: 18px;
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border-radius: 50%;
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background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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cursor: pointer;
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box-shadow: 0 2px 6px rgba(102, 126, 234, 0.4);
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transition: all 0.2s;
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}
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#zoomSlider::-webkit-slider-thumb:hover {
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transform: scale(1.2);
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box-shadow: 0 3px 10px rgba(102, 126, 234, 0.6);
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}
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#zoomSlider::-moz-range-thumb {
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width: 18px;
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height: 18px;
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border-radius: 50%;
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background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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cursor: pointer;
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border: none;
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box-shadow: 0 2px 6px rgba(102, 126, 234, 0.4);
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transition: all 0.2s;
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}
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#zoomSlider::-moz-range-thumb:hover {
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transform: scale(1.2);
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box-shadow: 0 3px 10px rgba(102, 126, 234, 0.6);
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}
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#zoomLevel {
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font-size: 14px;
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font-weight: 600;
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color: #667eea;
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min-width: 48px;
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text-align: center;
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font-variant-numeric: tabular-nums;
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}
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.labels {
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position: relative;
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display: flex;
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justify-content: space-between;
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margin-bottom: 10px;
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gap: 10px;
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}
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.label {
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background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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color: white;
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padding: 8px 16px;
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border-radius: 20px;
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font-size: 14px;
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font-weight: bold;
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flex: 1;
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text-align: center;
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}
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.frame-selector {
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display: flex;
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gap: 10px;
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margin-bottom: 20px;
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flex-wrap: wrap;
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}
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.frame-btn {
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padding: 10px 16px;
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background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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color: white;
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border: none;
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border-radius: 20px;
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cursor: pointer;
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font-size: 13px;
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transition: all 0.3s ease;
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min-width: 60px;
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}
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.frame-btn:hover {
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transform: translateY(-2px);
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box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
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}
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.frame-btn.active {
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background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
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}
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.mode-btn {
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padding: 12px 24px;
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background: white;
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color: #667eea;
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border: 2px solid #667eea;
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border-radius: 25px;
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cursor: pointer;
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font-size: 14px;
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font-weight: bold;
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transition: all 0.3s ease;
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}
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.mode-btn:hover {
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transform: translateY(-2px);
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box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
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}
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.mode-btn.active {
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background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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color: white;
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}
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.side-by-side-container {
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display: grid;
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grid-template-columns: 1fr 1fr;
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gap: 20px;
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background: #000;
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border-radius: 15px;
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padding: 20px;
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}
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.side-by-side-item {
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display: flex;
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flex-direction: column;
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}
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.side-by-side-item .image-container {
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background: #000;
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border-radius: 10px;
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overflow: hidden;
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display: flex;
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justify-content: center;
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align-items: center;
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}
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.side-by-side-item img {
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width: 100%;
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height: auto;
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display: block;
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}
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.grid-container {
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display: grid;
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grid-template-columns: 1fr 1fr;
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gap: 15px;
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background: #000;
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border-radius: 15px;
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padding: 20px;
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}
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.grid-item {
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position: relative;
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border-radius: 10px;
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overflow: hidden;
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background: #1a1a1a;
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}
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.grid-item img {
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width: 100%;
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height: auto;
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display: block;
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}
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.grid-item-label {
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position: absolute;
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top: 5px;
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left: 5px;
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background: rgba(0,0,0,0.8);
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color: white;
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padding: 4px 8px;
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border-radius: 5px;
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font-size: 11px;
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font-weight: bold;
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}
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.grid-item-time {
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position: absolute;
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bottom: 5px;
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right: 5px;
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background: rgba(102, 126, 234, 0.9);
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color: white;
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padding: 4px 8px;
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border-radius: 5px;
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font-size: 10px;
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font-weight: bold;
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}
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.quality-indicator {
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display: flex;
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align-items: center;
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gap: 10px;
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padding: 15px;
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background: #f8f9fa;
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border-radius: 10px;
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margin-bottom: 20px;
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}
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.indicator-bar {
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flex: 1;
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height: 20px;
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background: #e9ecef;
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border-radius: 10px;
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overflow: hidden;
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position: relative;
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}
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.indicator-fill {
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height: 100%;
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background: linear-gradient(90deg, #ff6b6b, #feca57, #48dbfb, #1dd1a1);
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transition: width 0.5s ease;
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}
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.indicator-label {
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font-size: 14px;
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font-weight: bold;
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color: #333;
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}
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.findings {
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background: #fff3cd;
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border-left: 4px solid #ffc107;
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padding: 20px;
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margin-top: 30px;
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border-radius: 10px;
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}
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.findings h3 {
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color: #856404;
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margin-bottom: 15px;
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font-size: 18px;
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}
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.findings ul {
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list-style: none;
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padding-left: 0;
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}
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.findings li {
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color: #856404;
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margin-bottom: 10px;
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padding-left: 25px;
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position: relative;
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}
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.findings li::before {
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content: '⚠️';
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position: absolute;
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left: 0;
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}
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.good-news {
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background: #d4edda;
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border-left: 4px solid #28a745;
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}
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.good-news h3 {
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color: #155724;
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}
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.good-news li {
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color: #155724;
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}
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.good-news li::before {
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content: '✅';
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}
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@media (max-width: 768px) {
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.side-by-side-container {
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grid-template-columns: 1fr;
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}
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.grid-container {
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grid-template-columns: 1fr 1fr;
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gap: 10px;
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padding: 10px;
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}
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.view-mode-selector {
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flex-wrap: wrap;
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}
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}
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</style>
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</head>
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<body>
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<div class="container">
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<div class="header">
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<h1>📊 微信视频号质量分析报告</h1>
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<p>原始视频 vs 微信视频号下载视频对比</p>
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</div>
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<div class="analysis-section">
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<h2 style="margin-bottom: 20px; color: #333;">📈 视频参数对比</h2>
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<div class="metrics-grid">
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<div class="metric-card">
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<h3>视频编码</h3>
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<div class="metric-value">HEVC → H264</div>
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<div class="metric-subtitle">微信重新编码</div>
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</div>
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<div class="metric-card">
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<h3>分辨率</h3>
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<div class="metric-value">1080×1920</div>
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<div class="metric-subtitle">保持不变</div>
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</div>
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<div class="metric-card">
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<h3>帧率</h3>
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<div class="metric-value">30 FPS</div>
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<div class="metric-subtitle">保持不变</div>
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</div>
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<div class="metric-card">
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<h3>时长</h3>
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<div class="metric-value">105.37 秒</div>
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<div class="metric-subtitle">几乎相同</div>
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</div>
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<div class="metric-card">
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<h3>视频码率</h3>
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<div class="metric-value multiline">6.89 → 6.91<br>Mbps</div>
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<div class="metric-subtitle">+0.3%</div>
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</div>
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<div class="metric-card">
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<h3>文件大小</h3>
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<div class="metric-value multiline">89 → 89.3<br>MB</div>
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<div class="metric-subtitle">+0.3 MB</div>
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</div>
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<div class="metric-card">
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<h3>画质保留</h3>
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<div class="metric-value">87.3%</div>
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<div class="metric-subtitle">SSIM</div>
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</div>
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<div class="metric-card">
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<h3>PSNR</h3>
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<div class="metric-value">23.37 dB</div>
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<div class="metric-subtitle">偏低</div>
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</div>
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</div>
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<h2 style="margin-top: 40px; margin-bottom: 20px; color: #333;">🔬 画质详细分析</h2>
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<div class="metrics-grid">
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<div class="metric-card">
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<h3>亮度通道 Y</h3>
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<div class="metric-value">21.72 dB</div>
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<div class="metric-subtitle">PSNR / SSIM: 0.831</div>
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</div>
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<div class="metric-card">
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<h3>色度通道 U</h3>
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<div class="metric-value">33.18 dB</div>
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<div class="metric-subtitle">PSNR / SSIM: 0.953</div>
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</div>
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<div class="metric-card">
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<h3>色度通道 V</h3>
|
||
<div class="metric-value">36.68 dB</div>
|
||
<div class="metric-subtitle">PSNR / SSIM: 0.962</div>
|
||
</div>
|
||
|
||
<div class="metric-card">
|
||
<h3>质量评价</h3>
|
||
<div class="metric-value multiline">细节损失<br>色彩保留好</div>
|
||
<div class="metric-subtitle">有损压缩</div>
|
||
</div>
|
||
</div>
|
||
|
||
<h2 style="margin-top: 40px; margin-bottom: 20px; color: #333;">🖼️ 帧对比</h2>
|
||
|
||
<div class="view-mode-selector" style="margin-bottom: 20px; display: flex; gap: 10px; justify-content: center; flex-wrap: wrap;">
|
||
<button class="mode-btn active" data-mode="slider">🔀 滑块对比</button>
|
||
<button class="mode-btn" data-mode="sidebyside">📊 并排对比</button>
|
||
<button class="mode-btn" data-mode="grid">🎬 网格对比</button>
|
||
</div>
|
||
|
||
<div class="frame-selector">
|
||
<button class="frame-btn active" data-frame="1">0秒</button>
|
||
<button class="frame-btn" data-frame="2">5秒</button>
|
||
<button class="frame-btn" data-frame="3">10秒</button>
|
||
<button class="frame-btn" data-frame="4">15秒</button>
|
||
<button class="frame-btn" data-frame="5">20秒</button>
|
||
<button class="frame-btn" data-frame="6">25秒</button>
|
||
<button class="frame-btn" data-frame="7">30秒</button>
|
||
<button class="frame-btn" data-frame="8">35秒</button>
|
||
<button class="frame-btn" data-frame="9">40秒</button>
|
||
<button class="frame-btn" data-frame="10">45秒</button>
|
||
<button class="frame-btn" data-frame="11">50秒</button>
|
||
<button class="frame-btn" data-frame="12">55秒</button>
|
||
<button class="frame-btn" data-frame="13">60秒</button>
|
||
<button class="frame-btn" data-frame="14">65秒</button>
|
||
<button class="frame-btn" data-frame="15">70秒</button>
|
||
<button class="frame-btn" data-frame="16">75秒</button>
|
||
<button class="frame-btn" data-frame="17">80秒</button>
|
||
<button class="frame-btn" data-frame="18">85秒</button>
|
||
<button class="frame-btn" data-frame="19">90秒</button>
|
||
<button class="frame-btn" data-frame="20">95秒</button>
|
||
<button class="frame-btn" data-frame="21">100秒</button>
|
||
<button class="frame-btn" data-frame="22">105秒</button>
|
||
</div>
|
||
|
||
<!-- 滑块对比模式 -->
|
||
<div class="comparison-section" id="sliderMode">
|
||
<div class="labels">
|
||
<span class="label">🎬 原始视频 (HEVC)</span>
|
||
<span class="label">📱 微信视频号 (H264)</span>
|
||
</div>
|
||
|
||
<!-- 缩放控制 -->
|
||
<div class="zoom-controls">
|
||
<button class="zoom-btn" id="zoomOut" title="缩小">−</button>
|
||
<input type="range" id="zoomSlider" min="50" max="200" value="100" step="10" title="拖动缩放">
|
||
<button class="zoom-btn" id="zoomIn" title="放大">+</button>
|
||
<span id="zoomLevel">100%</span>
|
||
<button class="zoom-btn reset" id="zoomReset" title="重置缩放">重置</button>
|
||
</div>
|
||
|
||
<div class="comparison-container" id="sliderContainer">
|
||
<img-comparison-slider id="comparisonSlider">
|
||
<img slot="first" id="originalImage" src="original/frame_001.png" alt="原始视频" style="height: 800px;" />
|
||
<img slot="second" id="wechatImage" src="wechat/frame_001.png" alt="微信视频" style="height: 800px;" />
|
||
</img-comparison-slider>
|
||
</div>
|
||
</div>
|
||
|
||
<!-- 并排对比模式 -->
|
||
<div class="comparison-section" id="sideBySideMode" style="display: none;">
|
||
<div class="side-by-side-container">
|
||
<div class="side-by-side-item">
|
||
<div class="label" style="margin-bottom: 10px;">🎬 原始视频 (HEVC)</div>
|
||
<div class="image-container">
|
||
<img id="originalImageSBS" src="original/frame_001.png" alt="原始视频" />
|
||
</div>
|
||
</div>
|
||
<div class="side-by-side-item">
|
||
<div class="label" style="margin-bottom: 10px;">📱 微信视频号 (H264)</div>
|
||
<div class="image-container">
|
||
<img id="wechatImageSBS" src="wechat/frame_001.png" alt="微信视频" />
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
<!-- 网格对比模式 -->
|
||
<div class="comparison-section" id="gridMode" style="display: none;">
|
||
<div class="labels">
|
||
<span class="label">🎬 原始视频 (HEVC)</span>
|
||
<span class="label">📱 微信视频号 (H264)</span>
|
||
</div>
|
||
<div class="grid-container" id="gridContainer">
|
||
<!-- 动态生成 -->
|
||
</div>
|
||
</div>
|
||
|
||
<div class="findings">
|
||
<h3>⚠️ 发现的问题</h3>
|
||
<ul>
|
||
<li><strong>编码转换损失</strong>: HEVC → H264 转码导致质量下降，尤其是亮度通道</li>
|
||
<li><strong>PSNR 偏低</strong>: 23.37 dB 表示存在明显的压缩伪影和细节损失</li>
|
||
<li><strong>亮度细节受损</strong>: Y 通道 PSNR 仅 21.72 dB，细节模糊化明显</li>
|
||
<li><strong>压缩算法不同</strong>: 微信使用了更激进的压缩策略</li>
|
||
</ul>
|
||
</div>
|
||
|
||
<div class="findings good-news">
|
||
<h3>✅ 保留较好的方面</h3>
|
||
<ul>
|
||
<li><strong>分辨率不变</strong>: 依然保持 1080×1920 的原始分辨率</li>
|
||
<li><strong>色彩保留好</strong>: 色度通道 PSNR > 33 dB，色彩还原度较高</li>
|
||
<li><strong>结构相似度高</strong>: SSIM 0.873 说明整体结构和内容保持良好</li>
|
||
<li><strong>码率基本不变</strong>: 从 6.89 → 6.91 Mbps，带宽消耗相近</li>
|
||
</ul>
|
||
</div>
|
||
|
||
<div style="margin-top: 30px; padding: 20px; background: #e7f3ff; border-radius: 10px;">
|
||
<h3 style="color: #0066cc; margin-bottom: 15px;">💡 技术解释</h3>
|
||
<p style="color: #004080; line-height: 1.8; margin-bottom: 10px;">
|
||
<strong>为什么感觉模糊？</strong><br>
|
||
主要原因是微信视频号将你的 HEVC（H.265）视频重新编码为 H264（H.265 压缩效率更高）。
|
||
虽然码率几乎相同，但 H264 在相同码率下的画质不如 HEVC，导致细节损失。
|
||
</p>
|
||
<p style="color: #004080; line-height: 1.8; margin-bottom: 10px;">
|
||
<strong>PSNR 和 SSIM 含义：</strong><br>
|
||
• PSNR > 30 dB: 优秀<br>
|
||
• 20-30 dB: 有损压缩，可见损失<br>
|
||
• SSIM > 0.9: 几乎无损<br>
|
||
• 0.8-0.9: 轻微损失<br>
|
||
你的视频 PSNR=23.37, SSIM=0.873，属于典型的有损压缩。
|
||
</p>
|
||
<p style="color: #004080; line-height: 1.8;">
|
||
<strong>建议：</strong><br>
|
||
如果希望保持更好的画质，可以尝试上传前降低原始视频的码率（如 4-5 Mbps），
|
||
这样微信重新编码时损失会更小。或者直接上传 H264 编码的视频。
|
||
</p>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
<script>
|
||
// 生成22帧的数据
|
||
const frames = {};
|
||
for (let i = 1; i <= 22; i++) {
|
||
const paddedNum = String(i).padStart(3, '0');
|
||
frames[i] = {
|
||
original: `original/frame_${paddedNum}.png`,
|
||
wechat: `wechat/frame_${paddedNum}.png`,
|
||
time: (i - 1) * 5
|
||
};
|
||
}
|
||
|
||
// 滑块模式的图片元素（在缩放功能中使用）
|
||
const originalImg = document.getElementById('originalImage');
|
||
const wechatImg = document.getElementById('wechatImage');
|
||
|
||
// 并排模式的图片元素
|
||
const originalImgSBS = document.getElementById('originalImageSBS');
|
||
const wechatImgSBS = document.getElementById('wechatImageSBS');
|
||
|
||
let currentMode = 'slider';
|
||
let currentFrame = 1;
|
||
let currentZoom = 100;
|
||
const BASE_HEIGHT = 800; // 基础高度
|
||
|
||
// 模式切换
|
||
document.querySelectorAll('.mode-btn').forEach(btn => {
|
||
btn.addEventListener('click', (e) => {
|
||
const mode = btn.dataset.mode;
|
||
currentMode = mode;
|
||
|
||
// 更新按钮状态
|
||
document.querySelectorAll('.mode-btn').forEach(b => {
|
||
b.classList.remove('active');
|
||
});
|
||
btn.classList.add('active');
|
||
|
||
// 切换显示模式
|
||
document.getElementById('sliderMode').style.display = mode === 'slider' ? 'block' : 'none';
|
||
document.getElementById('sideBySideMode').style.display = mode === 'sidebyside' ? 'block' : 'none';
|
||
document.getElementById('gridMode').style.display = mode === 'grid' ? 'block' : 'none';
|
||
|
||
// 如果是网格模式，生成网格
|
||
if (mode === 'grid') {
|
||
generateGrid();
|
||
} else if (mode === 'sidebyside') {
|
||
// 切换到并排模式时同步当前帧
|
||
originalImgSBS.src = frames[currentFrame].original;
|
||
wechatImgSBS.src = frames[currentFrame].wechat;
|
||
}
|
||
});
|
||
});
|
||
|
||
// 帧选择器
|
||
document.querySelectorAll('.frame-btn').forEach(btn => {
|
||
btn.addEventListener('click', (e) => {
|
||
const frameNum = parseInt(btn.dataset.frame);
|
||
currentFrame = frameNum;
|
||
|
||
// 更新图片
|
||
if (currentMode === 'slider') {
|
||
originalImg.src = frames[frameNum].original;
|
||
wechatImg.src = frames[frameNum].wechat;
|
||
// 保持当前缩放级别
|
||
const newHeight = BASE_HEIGHT * (currentZoom / 100);
|
||
originalImg.style.height = newHeight + 'px';
|
||
wechatImg.style.height = newHeight + 'px';
|
||
} else if (currentMode === 'sidebyside') {
|
||
originalImgSBS.src = frames[frameNum].original;
|
||
wechatImgSBS.src = frames[frameNum].wechat;
|
||
}
|
||
|
||
// 更新按钮状态
|
||
document.querySelectorAll('.frame-btn').forEach(b => {
|
||
b.classList.remove('active');
|
||
});
|
||
btn.classList.add('active');
|
||
});
|
||
});
|
||
|
||
// 缩放功能 - 直接改变图片高度，不使用 transform
|
||
const zoomSlider = document.getElementById('zoomSlider');
|
||
const zoomLevel = document.getElementById('zoomLevel');
|
||
const zoomIn = document.getElementById('zoomIn');
|
||
const zoomOut = document.getElementById('zoomOut');
|
||
const zoomReset = document.getElementById('zoomReset');
|
||
|
||
function updateZoom(zoom) {
|
||
currentZoom = Math.max(50, Math.min(200, zoom));
|
||
const newHeight = BASE_HEIGHT * (currentZoom / 100);
|
||
|
||
// 直接改变图片高度
|
||
originalImg.style.height = newHeight + 'px';
|
||
wechatImg.style.height = newHeight + 'px';
|
||
|
||
zoomSlider.value = currentZoom;
|
||
zoomLevel.textContent = currentZoom + '%';
|
||
}
|
||
|
||
zoomSlider.addEventListener('input', (e) => {
|
||
updateZoom(parseInt(e.target.value));
|
||
});
|
||
|
||
zoomIn.addEventListener('click', () => {
|
||
updateZoom(currentZoom + 10);
|
||
});
|
||
|
||
zoomOut.addEventListener('click', () => {
|
||
updateZoom(currentZoom - 10);
|
||
});
|
||
|
||
zoomReset.addEventListener('click', () => {
|
||
updateZoom(100);
|
||
});
|
||
|
||
// 鼠标滚轮缩放（按住 Ctrl/Cmd）
|
||
const sliderContainer = document.getElementById('sliderContainer');
|
||
sliderContainer.addEventListener('wheel', (e) => {
|
||
if (e.ctrlKey || e.metaKey) {
|
||
e.preventDefault();
|
||
const delta = e.deltaY > 0 ? -10 : 10;
|
||
updateZoom(currentZoom + delta);
|
||
}
|
||
}, { passive: false });
|
||
|
||
// 生成网格视图 - 使用安全的 DOM 方法
|
||
function generateGrid() {
|
||
const gridContainer = document.getElementById('gridContainer');
|
||
|
||
// 清空容器
|
||
while (gridContainer.firstChild) {
|
||
gridContainer.removeChild(gridContainer.firstChild);
|
||
}
|
||
|
||
// 选择关键帧：0, 15, 30, 45, 60, 75, 90, 105秒
|
||
const keyFrames = [1, 4, 7, 10, 13, 16, 19, 22];
|
||
|
||
keyFrames.forEach(frameNum => {
|
||
// 原始视频
|
||
const originalItem = document.createElement('div');
|
||
originalItem.className = 'grid-item';
|
||
|
||
const originalImg = document.createElement('img');
|
||
originalImg.src = frames[frameNum].original;
|
||
originalImg.alt = '原始 ' + frames[frameNum].time + '秒';
|
||
|
||
const originalLabel = document.createElement('div');
|
||
originalLabel.className = 'grid-item-label';
|
||
originalLabel.textContent = '🎬 HEVC';
|
||
|
||
const originalTime = document.createElement('div');
|
||
originalTime.className = 'grid-item-time';
|
||
originalTime.textContent = frames[frameNum].time + '秒';
|
||
|
||
originalItem.appendChild(originalImg);
|
||
originalItem.appendChild(originalLabel);
|
||
originalItem.appendChild(originalTime);
|
||
gridContainer.appendChild(originalItem);
|
||
|
||
// 微信视频
|
||
const wechatItem = document.createElement('div');
|
||
wechatItem.className = 'grid-item';
|
||
|
||
const wechatImg = document.createElement('img');
|
||
wechatImg.src = frames[frameNum].wechat;
|
||
wechatImg.alt = '微信 ' + frames[frameNum].time + '秒';
|
||
|
||
const wechatLabel = document.createElement('div');
|
||
wechatLabel.className = 'grid-item-label';
|
||
wechatLabel.textContent = '📱 H264';
|
||
|
||
const wechatTime = document.createElement('div');
|
||
wechatTime.className = 'grid-item-time';
|
||
wechatTime.textContent = frames[frameNum].time + '秒';
|
||
|
||
wechatItem.appendChild(wechatImg);
|
||
wechatItem.appendChild(wechatLabel);
|
||
wechatItem.appendChild(wechatTime);
|
||
gridContainer.appendChild(wechatItem);
|
||
});
|
||
}
|
||
</script>
|
||
</body>
|
||
</html>
|