js实现浏览器中提取mp4视频音频导出下载代码-html代码-BFW代码库

js实现浏览器中提取mp4视频音频导出下载代码

代码语言：html

所属分类：多媒体

代码描述：js实现浏览器中提取mp4视频音频导出下载代码

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
    <title>MP4视频声音提取器 - 本地音频提取下载工具</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: system-ui, 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
        }

        body {
            background: linear-gradient(145deg, #101f2c 0%, #07121b 100%);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        .glass-card {
            max-width: 1100px;
            width: 100%;
            background: rgba(20, 32, 44, 0.75);
            backdrop-filter: blur(12px);
            border-radius: 2rem;
            box-shadow: 0 25px 45px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.08);
            overflow: hidden;
            padding: 2rem 2rem 2rem 2rem;
            transition: all 0.3s ease;
        }

        h1 {
            font-size: 2rem;
            font-weight: 700;
            background: linear-gradient(135deg, #ffffff, #7bc5f5);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            letter-spacing: -0.3px;
            display: inline-flex;
            align-items: center;
            gap: 12px;
        }

        .sub {
            color: #9bb8d4;
            margin-top: 8px;
            margin-bottom: 28px;
            border-left: 3px solid #3e9fdd;
            padding-left: 14px;
            font-size: 0.9rem;
        }

        /* 上传区 */
        .upload-zone {
            background: #11212e;
            border-radius: 1.5rem;
            border: 2px dashed #2f5b74;
            padding: 1.6rem;
            text-align: center;
            transition: 0.2s;
            margin-bottom: 1.8rem;
            cursor: pointer;
        }

        .upload-zone:hover {
            border-color: #5aa9dd;
            background: #0e1e2a;
        }

        .file-label {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
            cursor: pointer;
        }

        .file-icon {
            font-size: 3rem;
        }

        .file-label span:first-of-type {
            font-weight: 600;
            font-size: 1.1rem;
            color: #cde4f5;
        }

        .file-label .small-hint {
            font-size: 0.75rem;
            color: #7c9ab0;
        }

        #fileInput {
            display: none;
        }

        .file-info {
            margin-top: 16px;
            background: #0a1a24;
            border-radius: 1rem;
            padding: .........完整代码请登录后点击上方下载按钮下载查看