{"id":117756,"date":"2024-03-23T11:40:48","date_gmt":"2024-03-23T02:40:48","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/go%e8%a8%80%e8%aa%9e%e3%81%a8ffmpeg%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%a6%e5%8b%95%e7%94%bb%e3%82%92%e3%82%b9%e3%83%94%e3%83%bc%e3%83%89%e3%82%a2%e3%83%83%e3%83%97%e3%83%bb%e3%83%80%e3%82%a6\/"},"modified":"2024-03-26T20:33:50","modified_gmt":"2024-03-26T11:33:50","slug":"go%e8%a8%80%e8%aa%9e%e3%81%a8ffmpeg%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%a6%e5%8b%95%e7%94%bb%e3%82%92%e3%82%b9%e3%83%94%e3%83%bc%e3%83%89%e3%82%a2%e3%83%83%e3%83%97%e3%83%bb%e3%83%80%e3%82%a6","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/go%e8%a8%80%e8%aa%9e%e3%81%a8ffmpeg%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%a6%e5%8b%95%e7%94%bb%e3%82%92%e3%82%b9%e3%83%94%e3%83%bc%e3%83%89%e3%82%a2%e3%83%83%e3%83%97%e3%83%bb%e3%83%80%e3%82%a6\/","title":{"rendered":"Go\u8a00\u8a9e\u3068FFmpeg\u3092\u4f7f\u7528\u3057\u3066\u52d5\u753b\u3092\u30b9\u30d4\u30fc\u30c9\u30a2\u30c3\u30d7\u30fb\u30c0\u30a6\u30f3\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<p>\u30d3\u30c7\u30aa\u306e\u9ad8\u901f\u5316\u30fb\u4f4e\u901f\u5316\u306b\u306f Go \u8a00\u8a9e\u306e os\/exec \u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u5229\u7528\u3057\u3066 FFmpeg \u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b<\/p>\n<p>\u307e\u305a\u3001FFmpeg\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u304a\u308a\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u74b0\u5883\u5909\u6570\u306b\u8ffd\u52a0\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3067\u52d5\u753b\u306e\u52a0\u901f\u3068\u6e1b\u901f\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">package<\/span> main\r\n<span class=\"hljs-keyword\">import<\/span> (\r\n<span class=\"hljs-string\">\"fmt\"<\/span>\r\n<span class=\"hljs-string\">\"os\"<\/span>\r\n<span class=\"hljs-string\">\"os\/exec\"<\/span>\r\n)\r\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">func<\/span> <span class=\"hljs-title\">main<\/span><span class=\"hljs-params\">()<\/span><\/span> {\r\ninputFile := <span class=\"hljs-string\">\"input.mp4\"<\/span>           <span class=\"hljs-comment\">\/\/ \u8f93\u5165\u89c6\u9891\u6587\u4ef6<\/span>\r\noutputFile := <span class=\"hljs-string\">\"output.mp4\"<\/span>         <span class=\"hljs-comment\">\/\/ \u8f93\u51fa\u89c6\u9891\u6587\u4ef6<\/span>\r\nspeed := <span class=\"hljs-number\">2.0<\/span>                       <span class=\"hljs-comment\">\/\/ \u52a0\u901f\u6216\u51cf\u901f\u7684\u500d\u6570\uff0c2.0\u8868\u793a\u52a0\u901f\u4e24\u500d\uff0c0.5\u8868\u793a\u51cf\u901f\u4e00\u534a<\/span>\r\n<span class=\"hljs-comment\">\/\/ \u6784\u5efaFFmpeg\u547d\u4ee4\u884c\u53c2\u6570<\/span>\r\nargs := []<span class=\"hljs-type\">string<\/span>{<span class=\"hljs-string\">\"-i\"<\/span>, inputFile, <span class=\"hljs-string\">\"-vf\"<\/span>, fmt.Sprintf(<span class=\"hljs-string\">\"setpts=%f*PTS\"<\/span>, <span class=\"hljs-number\">1<\/span>\/speed), <span class=\"hljs-string\">\"-r\"<\/span>, <span class=\"hljs-string\">\"30\"<\/span>, outputFile}\r\n<span class=\"hljs-comment\">\/\/ \u521b\u5efa\u4e00\u4e2aCmd\u5bf9\u8c61<\/span>\r\ncmd := exec.Command(<span class=\"hljs-string\">\"ffmpeg\"<\/span>, args...)\r\n<span class=\"hljs-comment\">\/\/ \u8bbe\u7f6e\u8f93\u51fa\u6d41\uff0c\u7528\u4e8e\u663e\u793aFFmpeg\u7684\u8f93\u51fa\u65e5\u5fd7<\/span>\r\ncmd.Stdout = os.Stdout\r\n<span class=\"hljs-comment\">\/\/ \u6267\u884c\u547d\u4ee4<\/span>\r\nerr := cmd.Run()\r\n<span class=\"hljs-keyword\">if<\/span> err != <span class=\"hljs-literal\">nil<\/span> {\r\nfmt.Println(<span class=\"hljs-string\">\"Error:\"<\/span>, err)\r\n<span class=\"hljs-keyword\">return<\/span>\r\n}\r\nfmt.Println(<span class=\"hljs-string\">\"\u89c6\u9891\u52a0\u901f\/\u51cf\u901f\u5b8c\u6210\uff01\"<\/span>)\r\n}\r\n<\/code><\/pre>\n<p>\u4e0a\u306e\u4f8b\u3067\u306f\u3001setpts \u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u4f7f\u7528\u3057\u3066\u3001\u30d3\u30c7\u30aa\u306e\u518d\u751f\u901f\u5ea6\u3092\u5236\u5fa1\u3057\u307e\u3059\u3002\u3053\u3053\u3067\u3001setpts \u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u306e\u5024\u306f\u3001PTS(Presentation Time Stamp) \u3092\u5909\u66f4\u3057\u3066\u52a0\u901f\u307e\u305f\u306f\u6e1b\u901f\u3092\u884c\u3046\u5f0f\u3067\u3059\u3002-r \u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u306f\u3001\u51fa\u529b\u30d3\u30c7\u30aa\u306e\u30d5\u30ec\u30fc\u30e0\u30ec\u30fc\u30c8\u3092\u6307\u5b9a\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u8abf\u6574\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001\u4ee5\u4e0a\u306e\u30b5\u30f3\u30d7\u30eb\u3067\u306f\u52d5\u753b\u306e\u9ad8\u901f\u5316\u3001\u4f4e\u901f\u5316\u306e\u57fa\u672c\u7684\u306a\u6a5f\u80fd\u306e\u307f\u306e\u5b9f\u88c5\u3067\u3042\u308a\u3001\u3054\u8981\u671b\u306b\u5408\u308f\u305b\u3066\u30d1\u30e9\u30e1\u30fc\u30bf\u8abf\u6574\u3084\u6a5f\u80fd\u62e1\u5f35\u3092\u884c\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30d3\u30c7\u30aa\u306e\u9ad8\u901f\u5316\u30fb\u4f4e\u901f\u5316\u306b\u306f Go \u8a00\u8a9e\u306e os\/exec \u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u5229\u7528\u3057\u3066 FFmpeg \u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b \u307e\u305a\u3001FFmpeg\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u304a\u308a\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u74b0\u5883\u5909\u6570\u306b\u8ffd\u52a0\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002 \u4ee5 [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-117756","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Go\u8a00\u8a9e\u3068FFmpeg\u3092\u4f7f\u7528\u3057\u3066\u52d5\u753b\u3092\u30b9\u30d4\u30fc\u30c9\u30a2\u30c3\u30d7\u30fb\u30c0\u30a6\u30f3\u3059\u308b\u65b9\u6cd5 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/ja\/blog\/go\u8a00\u8a9e\u3068ffmpeg\u3092\u4f7f\u7528\u3057\u3066\u52d5\u753b\u3092\u30b9\u30d4\u30fc\u30c9\u30a2\u30c3\u30d7\u30fb\u30c0\u30a6\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Go\u8a00\u8a9e\u3068FFmpeg\u3092\u4f7f\u7528\u3057\u3066\u52d5\u753b\u3092\u30b9\u30d4\u30fc\u30c9\u30a2\u30c3\u30d7\u30fb\u30c0\u30a6\u30f3\u3059\u308b\u65b9\u6cd5\" \/>\n<meta property=\"og:description\" content=\"\u30d3\u30c7\u30aa\u306e\u9ad8\u901f\u5316\u30fb\u4f4e\u901f\u5316\u306b\u306f Go \u8a00\u8a9e\u306e os\/exec \u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u5229\u7528\u3057\u3066 FFmpeg \u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b 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