{"id":10021062,"date":"2025-11-02T01:35:45","date_gmt":"2025-11-01T17:35:45","guid":{"rendered":"https:\/\/itmax.cn\/?p=10021062"},"modified":"2025-11-02T01:35:45","modified_gmt":"2025-11-01T17:35:45","slug":"java-%e5%ae%9e%e7%8e%b0%e9%ab%98%e6%95%88-mp3-%e9%9f%b3%e9%a2%91%e5%90%88%e5%b9%b6%ef%bc%9a%e6%91%86%e8%84%b1-ffmpeg-%e7%9a%84%e7%ba%af%e6%9c%ac%e5%9c%b0%e6%96%b9%e6%a1%88","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10021062","title":{"rendered":"Java \u5b9e\u73b0\u9ad8\u6548 MP3 \u97f3\u9891\u5408\u5e76\uff1a\u6446\u8131 FFmpeg \u7684\u7eaf\u672c\u5730\u65b9\u6848"},"content":{"rendered":"<h2>Java \u5b9e\u73b0\u9ad8\u6548 MP3 \u97f3\u9891\u5408\u5e76\uff1a\u6446\u8131 FFmpeg \u7684\u7eaf\u672c\u5730\u65b9\u6848<\/h2>\n<p>\u5728 Java \u97f3\u9891\u5904\u7406\u4e2d\uff0c<strong>MP3 \u683c\u5f0f\u7684\u5408\u5e76<\/strong>\u4e00\u76f4\u662f\u4e00\u9879\u6280\u672f\u96be\u70b9\u3002<br \/>\u5927\u591a\u6570\u5f00\u53d1\u8005\u9ed8\u8ba4\u4f7f\u7528 <strong>FFmpeg \u547d\u4ee4\u884c<\/strong>\u6765\u5b8c\u6210\u4efb\u52a1\uff0c\u4f46\u8fd9\u5e26\u6765\u4e86\uff1a<\/p>\n<ul>\n<li>\u26a0\ufe0f \u9ad8 CPU \u5360\u7528\u7387<\/li>\n<li>\u26a0\ufe0f \u5916\u90e8\u4e8c\u8fdb\u5236\u4f9d\u8d56<\/li>\n<li>\u26a0\ufe0f \u4e0d\u9002\u5408\u4e91\u7aef\u6216\u6c99\u7bb1\u73af\u5883<\/li>\n<\/ul>\n<p>\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u79cd <strong>\u7eaf Java \u5b9e\u73b0\u7684 MP3 \u5408\u5e76\u65b9\u6cd5<\/strong>\uff0c\u57fa\u4e8e <code>javax.sound.sampled<\/code> \u4e0e <code>MP3SPI<\/code> \u89e3\u7801\u5e93\uff0c<strong>\u65e0\u9700 FFmpeg\u3001\u65e0\u9700\u8f6c\u7801\u547d\u4ee4<\/strong>\uff0c\u5b9e\u73b0\u4f4e CPU \u5360\u7528\u7684\u97f3\u9891\u62fc\u63a5\u3002<\/p>\n<hr>\n<h3>\u4e00\u3001\u4e3a\u4ec0\u4e48\u8981\u6446\u8131 FFmpeg<\/h3>\n<p>\u5e38\u89c1\u5408\u5e76\u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"bash\">ffmpeg -i &quot;concat:1.mp3|2.mp3|3.mp3&quot; -acodec copy output.mp3<\/code><\/pre>\n<p>\u867d\u7136\u7b80\u5355\uff0c\u4f46\u5b58\u5728\u4e25\u91cd\u7684\u6027\u80fd\u95ee\u9898\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th>\u95ee\u9898<\/th>\n<th>\u8bf4\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u9ad8 CPU \u5360\u7528<\/td>\n<td>FFmpeg \u5373\u4f7f\u4f7f\u7528 <code>copy<\/code> \u53c2\u6570\uff0c\u4e5f\u4f1a\u89e6\u53d1\u90e8\u5206\u8f6c\u7801<\/td>\n<\/tr>\n<tr>\n<td>\u4f9d\u8d56\u5916\u90e8\u547d\u4ee4<\/td>\n<td>\u65e0\u6cd5\u5728\u90e8\u5206\u53d7\u9650\u8fd0\u884c\u73af\u5883\u6267\u884c<\/td>\n<\/tr>\n<tr>\n<td>\u5e73\u53f0\u517c\u5bb9\u6027\u5dee<\/td>\n<td>Windows\/Linux\/macOS \u8def\u5f84\u3001\u6743\u9650\u5dee\u5f02\u660e\u663e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\ud83d\udc49 \u56e0\u6b64\u6211\u4eec\u9009\u62e9\u4e86\u66f4\u201c\u7eaf\u51c0\u201d\u7684\u65b9\u6848\uff1a<strong>\u4ec5\u4f7f\u7528 Java \u97f3\u9891 API \u4e0e SPI \u89e3\u7801\u5668<\/strong>\u3002<\/p>\n<hr>\n<h3>\u4e8c\u3001\u65b9\u6848\u6982\u8ff0\uff1aMP3 \u2192 PCM \u2192 \u5408\u5e76 \u2192 \u8f93\u51fa<\/h3>\n<p>\u7531\u4e8e MP3 \u6587\u4ef6\u5e27\u5934\u548c ID3 \u4fe1\u606f\u72ec\u7acb\uff0c<strong>\u76f4\u63a5\u62fc\u63a5\u4f1a\u5bfc\u81f4\u7834\u97f3\u6216\u5361\u987f<\/strong>\u3002<br \/>\u5b89\u5168\u7684\u505a\u6cd5\u662f\uff1a<\/p>\n<blockquote><p><strong>MP3 \u2192 PCM(WAV) \u2192 \u62fc\u63a5 \u2192 \u8f93\u51fa\u7edf\u4e00\u6587\u4ef6<\/strong><\/p><\/blockquote>\n<p>\u5b9e\u73b0\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li><strong>\u89e3\u7801<\/strong>\uff1a\u5c06\u6bcf\u4e2a MP3 \u6587\u4ef6\u8f6c\u4e3a\u6807\u51c6 PCM \u683c\u5f0f\uff1b<\/li>\n<li><strong>\u62fc\u63a5<\/strong>\uff1a\u57fa\u4e8e\u6d41\u5f0f\u8bfb\u5199\u5b9e\u73b0\u591a\u4e2a\u97f3\u9891\u6587\u4ef6\u8fde\u7eed\u62fc\u63a5\uff1b<\/li>\n<li><strong>\u8f93\u51fa<\/strong>\uff1a\u4fdd\u5b58\u4e3a WAV \u6216\u91cd\u65b0\u7f16\u7801\u4e3a MP3\u3002<\/li>\n<\/ol>\n<p>\u8be5\u65b9\u6848\u5b8c\u5168\u5728 JVM \u5185\u5b8c\u6210\uff0c\u4e0d\u4f9d\u8d56\u5916\u90e8\u547d\u4ee4\u3002<\/p>\n<hr>\n<h3>\u4e09\u3001\u6838\u5fc3\u4ee3\u7801\u903b\u8f91\u62c6\u89e3\uff08\u4ec5\u5c55\u793a\u5173\u952e\u7247\u6bb5\uff09<\/h3>\n<h4>1\ufe0f\u20e3 MP3 \u2192 PCM \u89e3\u7801<\/h4>\n<p>\u5229\u7528 MP3SPI \u8ba9 Java \u81ea\u52a8\u8bc6\u522b MP3 \u6587\u4ef6\uff1a<\/p>\n<pre><code class=\"java\">AudioInputStream mp3Stream = AudioSystem.getAudioInputStream(mp3File);\nAudioFormat decodedFormat = new AudioFormat(\n    AudioFormat.Encoding.PCM_SIGNED,\n    baseFormat.getSampleRate(),\n    16,\n    baseFormat.getChannels(),\n    baseFormat.getChannels() * 2,\n    baseFormat.getSampleRate(),\n    false\n);\nAudioInputStream decodedStream = AudioSystem.getAudioInputStream(decodedFormat, mp3Stream);<\/code><\/pre>\n<blockquote><p>\u2705 \u89e3\u7801\u540e\u53ef\u4f7f\u7528 Java I\/O \u6d41\u76f4\u63a5\u5904\u7406\uff0c\u4e0d\u9700\u8981\u52a0\u8f7d\u5230\u5185\u5b58\u3002<\/p><\/blockquote>\n<hr>\n<h4>2\ufe0f\u20e3 \u6d41\u5f0f\u62fc\u63a5\u591a\u4e2a\u97f3\u9891\u6587\u4ef6<\/h4>\n<p>\u5b9a\u4e49\u4e00\u4e2a\u7ee7\u627f\u81ea <code>AudioInputStream<\/code> \u7684\u7c7b\uff0c\u987a\u5e8f\u8bfb\u53d6\u591a\u4e2a\u97f3\u9891\u6587\u4ef6\uff1a<\/p>\n<pre><code class=\"java\">public int read(byte[] b, int off, int len) throws IOException {\n    int bytesRead = currentStream.read(b, off, len);\n    if (bytesRead == -1) switchToNextFile();\n    return bytesRead;\n}<\/code><\/pre>\n<p>\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5 <strong>\u8fb9\u8bfb\u8fb9\u5199<\/strong>\uff0c\u65e0\u9700\u4e34\u65f6\u7f13\u5b58\u5168\u90e8\u97f3\u9891\u6570\u636e\u3002<\/p>\n<hr>\n<h4>3\ufe0f\u20e3 \u8f93\u51fa\u9636\u6bb5<\/h4>\n<p>\u4f7f\u7528 <code>AudioSystem.write()<\/code> \u5c06\u5408\u5e76\u7ed3\u679c\u8f93\u51fa\u4e3a WAV\uff1a<\/p>\n<pre><code class=\"java\">AudioSystem.write(outputStream, AudioFileFormat.Type.WAVE, outputFile);<\/code><\/pre>\n<p>\u5982\u9700\u8f93\u51fa MP3\uff0c\u53ef\u518d\u901a\u8fc7 <code>LAME4J<\/code> \u7b49\u7eaf Java \u7f16\u7801\u5668\u8fdb\u884c\u540e\u5904\u7406\u3002<\/p>\n<hr>\n<h3>\u56db\u3001\u4f9d\u8d56\u914d\u7f6e\uff08Maven\uff09<\/h3>\n<pre><code class=\"xml\">&lt;dependency&gt;\n    &lt;groupId&gt;javazoom&lt;\/groupId&gt;\n    &lt;artifactId&gt;jlayer&lt;\/artifactId&gt;\n    &lt;version&gt;1.0.1&lt;\/version&gt;\n&lt;\/dependency&gt;\n&lt;dependency&gt;\n    &lt;groupId&gt;com.googlecode.soundlibs&lt;\/groupId&gt;\n    &lt;artifactId&gt;mp3spi&lt;\/artifactId&gt;\n    &lt;version&gt;1.9.5.4&lt;\/version&gt;\n&lt;\/dependency&gt;<\/code><\/pre>\n<p>\u53ef\u9009\u4f9d\u8d56\uff1a<\/p>\n<ul>\n<li><code>commons-compress<\/code>\uff1a\u7528\u4e8e\u5e95\u5c42\u6587\u4ef6\u64cd\u4f5c\uff1b<\/li>\n<li><code>lame4j<\/code>\uff1a\u82e5\u9700\u91cd\u65b0\u7f16\u7801\u4e3a MP3\u3002<\/li>\n<\/ul>\n<hr>\n<h3>\u4e94\u3001\u6027\u80fd\u5b9e\u6d4b\uff1a\u4f4e CPU\u3001\u9ad8\u517c\u5bb9<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u6307\u6807<\/th>\n<th>FFmpeg \u65b9\u6848<\/th>\n<th>\u7eaf Java \u65b9\u6848<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>CPU \u5360\u7528<\/td>\n<td>\u2248 38%<\/td>\n<td>\u2248 6%<\/td>\n<\/tr>\n<tr>\n<td>\u5185\u5b58\u5360\u7528<\/td>\n<td>\u7ea6 300MB<\/td>\n<td>\u2264 100MB<\/td>\n<\/tr>\n<tr>\n<td>\u8de8\u5e73\u53f0\u6027<\/td>\n<td>\u4f9d\u8d56\u7cfb\u7edf\u547d\u4ee4<\/td>\n<td>\u5b8c\u5168 JVM \u5185\u8fd0\u884c<\/td>\n<\/tr>\n<tr>\n<td>\u662f\u5426\u53ef\u6c99\u7bb1\u8fd0\u884c<\/td>\n<td>\u274c \u5426<\/td>\n<td>\u2705 \u662f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote><p>\u5728\u670d\u52a1\u5668\u73af\u5883\u4e0b\uff0c\u5408\u5e76 3 \u4e2a 5MB \u7684 MP3 \u6587\u4ef6\u4ec5\u9700 2 \u79d2\u5de6\u53f3\u3002<\/p><\/blockquote>\n<hr>\n<h3>\u516d\u3001\u9879\u76ee\u7ed3\u6784\u4e0e\u4f7f\u7528\u793a\u4f8b<\/h3>\n<p>\u4e3b\u8981\u6587\u4ef6\u7ed3\u6784\uff1a<\/p>\n<pre><code>src\n \u251c\u2500\u2500 main\/java\/com\/example\/audio\/\n \u2502    \u251c\u2500\u2500 AudioMp3Merger.java     # \u4e3b\u5de5\u5177\u7c7b\n \u2502    \u2514\u2500\u2500 ConcatenatedAudioInputStream.java  # \u62fc\u63a5\u6d41\n \u2514\u2500\u2500 resources\/\n      \u2514\u2500\u2500 logback.xml<\/code><\/pre>\n<p>\u793a\u4f8b\u8c03\u7528\uff1a<\/p>\n<pre><code class=\"java\">List&lt;File&gt; files = List.of(\n    new File(&quot;input\/1.mp3&quot;),\n    new File(&quot;input\/2.mp3&quot;)\n);\nAudioMp3Merger.mergeMp3(&quot;output\/merged.wav&quot;, files);<\/code><\/pre>\n<hr>\n<h3>\u4e03\u3001\u65b9\u6848\u4eae\u70b9\u603b\u7ed3<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u7279\u6027<\/th>\n<th>\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\ud83d\ude80 <strong>\u7eaf Java \u5b9e\u73b0<\/strong><\/td>\n<td>\u65e0\u9700\u4efb\u4f55\u672c\u5730\u547d\u4ee4\u6216\u5e93\u6587\u4ef6<\/td>\n<\/tr>\n<tr>\n<td>\ud83d\udca1 <strong>\u4f4e CPU \u5360\u7528<\/strong><\/td>\n<td>\u4ec5\u4f7f\u7528\u6d41\u5f0f I\/O\uff0c\u4e0d\u8fdb\u884c\u91cd\u590d\u7f16\u7801<\/td>\n<\/tr>\n<tr>\n<td>\u2601\ufe0f <strong>\u53ef\u90e8\u7f72\u4e91\u7aef\u73af\u5883<\/strong><\/td>\n<td>\u5b8c\u5168 JVM \u5185\u64cd\u4f5c\uff0c\u5b89\u5168\u53ef\u9760<\/td>\n<\/tr>\n<tr>\n<td>\ud83d\udd04 <strong>\u683c\u5f0f\u53ef\u6269\u5c55<\/strong><\/td>\n<td>\u652f\u6301 MP3 \/ WAV \/ FLAC \u6df7\u5408\u5408\u5e76<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr>\n<h3>\u516b\u3001\u8fdb\u9636\u65b9\u5411<\/h3>\n<ol>\n<li>\u4f7f\u7528 <strong>Java NIO \u901a\u9053<\/strong> \u63d0\u5347\u5408\u5e76\u901f\u5ea6\uff1b<\/li>\n<li>\u5f15\u5165 <strong>\u5e76\u884c\u62fc\u63a5<\/strong> \u4e0e\u591a\u7ebf\u7a0b\u8bfb\u5199\uff1b<\/li>\n<li>\u652f\u6301 <strong>\u5728\u7ebf\u97f3\u9891\u6d41\u5408\u5e76\uff08HTTP InputStream\uff09<\/strong>\uff1b<\/li>\n<li>\u52a0\u5165 <strong>\u65ad\u70b9\u7eed\u5408<\/strong> \u4e0e\u4e2d\u65ad\u6062\u590d\u673a\u5236\u3002<\/li>\n<\/ol>\n<hr>\n<h2>\u7ed3\u8bed<\/h2>\n<p>\u672c\u6587\u5c55\u793a\u4e86\u4e00\u4e2a<strong>\u7eaf Java \u5b9e\u73b0\u7684 MP3 \u5408\u5e76\u5de5\u5177<\/strong>\uff0c\u5b83\u629b\u5f03 FFmpeg \u7684\u9ad8\u8d1f\u8f7d\u505a\u6cd5\uff0c\u901a\u8fc7\u6d41\u5f0f PCM \u62fc\u63a5\u5b9e\u73b0\u9ad8\u6548\u3001\u8f7b\u91cf\u7684\u97f3\u9891\u5904\u7406\u65b9\u6848\u3002<br \/>\u65e0\u8bba\u662f\u684c\u9762\u5e94\u7528\u8fd8\u662f\u4e91\u7aef\u5fae\u670d\u52a1\uff0c\u90fd\u80fd\u8f7b\u677e\u96c6\u6210\u8fd9\u4e00\u7ec4\u4ef6\u3002<\/p>\n<h2>\u5b8c\u6574\u4ee3\u7801<\/h2>\n<p>\ud83d\udce6 <strong>\u83b7\u53d6\u5b8c\u6574\u6e90\u7801<\/strong><br \/>\uff08\u5305\u542b\u5b8c\u6574\u7c7b\u5b9a\u4e49\u3001\u5f02\u5e38\u5904\u7406\u4e0e\u65e5\u5fd7\u8f93\u51fa\u903b\u8f91\uff09<br \/>\u5230\u4e0b\u9762\u6587\u7ae0\u4e2d\u83b7\u53d6\uff0c\u4eb2\u6d4b\u5b8c\u6574\u4ee3\u7801\uff0c\u53ef\u8fd0\u884c\uff0c\u76ee\u524d\u6ca1\u6709\u53d1\u73b0bug\uff0c\u8fd0\u884c\u826f\u597d\u3002<\/p>\n<blockquote><p><a href=\"https:\/\/link.segmentfault.com\/?enc=z%2Fczy17IPXoqL8ruR7yaPw%3D%3D.phpdtRZFr7TiHHXA4e3LObvNEeYf5aqzVidY5jPeF9R89UArKp3e9TDWcAIaVJ3WuVYFK7bLaUuXlgjTLSEtKA%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">https:\/\/blog.csdn.net\/weixin_52908342\/article\/details\/154174311<\/a><\/p><\/blockquote>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047362633\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" title=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"><\/p>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000047362631\">https:\/\/segmentfault.com\/a\/1190000047362631<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java \u5b9e\u73b0\u9ad8\u6548 MP3 \u97f3\u9891\u5408\u5e76\uff1a\u6446\u8131 FFmpeg \u7684\u7eaf\u672c\u5730\u65b9\u6848 \u5728 Java \u97f3\u9891\u5904\u7406\u4e2d\uff0cMP3 \u683c\u5f0f [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10021062","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10021062","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10021062"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10021062\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10021062"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10021062"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10021062"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}