{"id":123383,"date":"2024-03-24T11:01:22","date_gmt":"2024-03-24T02:01:22","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/go%e3%81%a8ffmpeg%e3%81%a7%e3%83%8d%e3%83%83%e3%83%88%e4%b8%8a%e3%81%ae%e5%8b%95%e7%94%bb%e3%82%92%e3%83%80%e3%82%a6%e3%83%b3%e3%83%ad%e3%83%bc%e3%83%89%e3%81%99%e3%82%8b%e3%83%86%e3%82%af%e3%83%8b\/"},"modified":"2024-03-27T19:28:46","modified_gmt":"2024-03-27T10:28:46","slug":"go%e3%81%a8ffmpeg%e3%81%a7%e3%83%8d%e3%83%83%e3%83%88%e4%b8%8a%e3%81%ae%e5%8b%95%e7%94%bb%e3%82%92%e3%83%80%e3%82%a6%e3%83%b3%e3%83%ad%e3%83%bc%e3%83%89%e3%81%99%e3%82%8b%e3%83%86%e3%82%af%e3%83%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/go%e3%81%a8ffmpeg%e3%81%a7%e3%83%8d%e3%83%83%e3%83%88%e4%b8%8a%e3%81%ae%e5%8b%95%e7%94%bb%e3%82%92%e3%83%80%e3%82%a6%e3%83%b3%e3%83%ad%e3%83%bc%e3%83%89%e3%81%99%e3%82%8b%e3%83%86%e3%82%af%e3%83%8b\/","title":{"rendered":"Go\u3068FFmpeg\u3067\u30cd\u30c3\u30c8\u4e0a\u306e\u52d5\u753b\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\u30c6\u30af\u30cb\u30ab\u30eb\u306a\u5b9f\u73fe"},"content":{"rendered":"<p>Go\u8a00\u8a9e\u3068FFmpeg\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u52d5\u753b\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u7c21\u5358\u306a\u624b\u9806\u3068\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<p>\u624b\u9806:<\/p>\n<ol>\n<li>Go\u306e\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u542b\u307e\u308c\u308bhttp\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u5229\u7528\u3057\u3066Web\u304b\u3089\u52d5\u753b\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092Go\u8a00\u8a9e\u3067\u4f5c\u6210\u3057\u307e\u3059\u3002HTTP GET\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1\u3059\u308b\u3053\u3068\u3067\u3001\u30ed\u30fc\u30ab\u30eb\u306b\u52d5\u753b\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002io.Copy\u95a2\u6570\u3092\u6d3b\u7528\u3057\u3066\u3001Web\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u672c\u6587\u3092\u30ed\u30fc\u30ab\u30eb\u30d5\u30a1\u30a4\u30eb\u306b\u30b3\u30d4\u30fc\u3057\u307e\u3059\u3002<\/li>\n<li>\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u305f\u30d3\u30c7\u30aa\u30d5\u30a1\u30a4\u30eb\u3092FFmpeg\u3067\u51e6\u7406\u3059\u308b\u3002FFmpeg\u306f\u3001\u30d3\u30c7\u30aa\u3084\u30aa\u30fc\u30c7\u30a3\u30aa\u30d5\u30a1\u30a4\u30eb\u3092\u51e6\u7406\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3067\u304d\u308b\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306e\u30de\u30eb\u30c1\u30e1\u30c7\u30a3\u30a2\u51e6\u7406\u30c4\u30fc\u30eb\u3067\u3059\u3002\u30d3\u30c7\u30aa\u51e6\u7406\u30bf\u30b9\u30af\u3092\u5b9f\u884c\u3059\u308b\u306b\u306f\u3001FFmpeg\u306e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb\u307e\u305f\u306fFFmpeg\u306eGo\u30d0\u30a4\u30f3\u30c7\u30a3\u30f3\u30b0\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001FFmpeg\u3092\u4f7f\u7528\u3057\u3066\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u305f\u30d3\u30c7\u30aa\u30d5\u30a1\u30a4\u30eb\u3092\u4ed6\u306e\u5f62\u5f0f\u306b\u30c8\u30e9\u30f3\u30b9\u30b3\u30fc\u30c9\u3057\u305f\u308a\u3001\u30d3\u30c7\u30aa\u3092\u30c8\u30ea\u30df\u30f3\u30b0\u3057\u305f\u308a\u3001\u30d3\u30c7\u30aa\u30d5\u30ec\u30fc\u30e0\u3092\u62bd\u51fa\u3057\u305f\u308a\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n<p>\u30cd\u30a4\u30c6\u30a3\u30d6\u306a\u65e5\u672c\u8a9e\u3067\u3053\u306e\u6587\u3092\u8a00\u3044\u63db\u3048\u3066\u304f\u3060\u3055\u3044\u3002\u30aa\u30d7\u30b7\u30e7\u30f3\u306f1\u3064\u3060\u3051\u3067\u7d50\u69cb\u3067\u3059:\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9:<\/p>\n<p>\u4ee5\u4e0b\u306f\u3001Go\u3068FFmpeg\u3092\u4f7f\u7528\u3057\u3066\u30cd\u30c3\u30c8\u52d5\u753b\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\u30b3\u30fc\u30c9\u4f8b\u3067\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\">\"io\"<\/span>\r\n<span class=\"hljs-string\">\"net\/http\"<\/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\n<span class=\"hljs-comment\">\/\/ \u4e0b\u8f7d\u89c6\u9891\u6587\u4ef6<\/span>\r\nerr := downloadVideo(<span class=\"hljs-string\">\"http:\/\/example.com\/video.mp4\"<\/span>, <span class=\"hljs-string\">\"video.mp4\"<\/span>)\r\n<span class=\"hljs-keyword\">if<\/span> err != <span class=\"hljs-literal\">nil<\/span> {\r\nfmt.Println(<span class=\"hljs-string\">\"\u4e0b\u8f7d\u89c6\u9891\u6587\u4ef6\u65f6\u51fa\u9519:\"<\/span>, err)\r\n<span class=\"hljs-keyword\">return<\/span>\r\n}\r\n<span class=\"hljs-comment\">\/\/ \u4f7f\u7528FFmpeg\u5904\u7406\u89c6\u9891\u6587\u4ef6<\/span>\r\nerr = processVideo(<span class=\"hljs-string\">\"video.mp4\"<\/span>, <span class=\"hljs-string\">\"output.mp4\"<\/span>)\r\n<span class=\"hljs-keyword\">if<\/span> err != <span class=\"hljs-literal\">nil<\/span> {\r\nfmt.Println(<span class=\"hljs-string\">\"\u5904\u7406\u89c6\u9891\u6587\u4ef6\u65f6\u51fa\u9519:\"<\/span>, err)\r\n<span class=\"hljs-keyword\">return<\/span>\r\n}\r\nfmt.Println(<span class=\"hljs-string\">\"\u89c6\u9891\u5904\u7406\u5b8c\u6210!\"<\/span>)\r\n}\r\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">func<\/span> <span class=\"hljs-title\">downloadVideo<\/span><span class=\"hljs-params\">(url <span class=\"hljs-type\">string<\/span>, filename <span class=\"hljs-type\">string<\/span>)<\/span><\/span> <span class=\"hljs-type\">error<\/span> {\r\nresp, err := http.Get(url)\r\n<span class=\"hljs-keyword\">if<\/span> err != <span class=\"hljs-literal\">nil<\/span> {\r\n<span class=\"hljs-keyword\">return<\/span> err\r\n}\r\n<span class=\"hljs-keyword\">defer<\/span> resp.Body.Close()\r\nfile, err := os.Create(filename)\r\n<span class=\"hljs-keyword\">if<\/span> err != <span class=\"hljs-literal\">nil<\/span> {\r\n<span class=\"hljs-keyword\">return<\/span> err\r\n}\r\n<span class=\"hljs-keyword\">defer<\/span> file.Close()\r\n_, err = io.Copy(file, resp.Body)\r\n<span class=\"hljs-keyword\">if<\/span> err != <span class=\"hljs-literal\">nil<\/span> {\r\n<span class=\"hljs-keyword\">return<\/span> err\r\n}\r\n<span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-literal\">nil<\/span>\r\n}\r\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">func<\/span> <span class=\"hljs-title\">processVideo<\/span><span class=\"hljs-params\">(inputFile <span class=\"hljs-type\">string<\/span>, outputFile <span class=\"hljs-type\">string<\/span>)<\/span><\/span> <span class=\"hljs-type\">error<\/span> {\r\n<span class=\"hljs-comment\">\/\/ \u4f7f\u7528FFmpeg\u547d\u4ee4\u884c\u5de5\u5177\u8fdb\u884c\u89c6\u9891\u5904\u7406<\/span>\r\ncmd := exec.Command(<span class=\"hljs-string\">\"ffmpeg\"<\/span>, <span class=\"hljs-string\">\"-i\"<\/span>, inputFile, <span class=\"hljs-string\">\"-c:v\"<\/span>, <span class=\"hljs-string\">\"copy\"<\/span>, <span class=\"hljs-string\">\"-c:a\"<\/span>, <span class=\"hljs-string\">\"copy\"<\/span>, outputFile)\r\nerr := cmd.Run()\r\n<span class=\"hljs-keyword\">if<\/span> err != <span class=\"hljs-literal\">nil<\/span> {\r\n<span class=\"hljs-keyword\">return<\/span> err\r\n}\r\n<span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-literal\">nil<\/span>\r\n}\r\n<\/code><\/pre>\n<p>\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u306edownloadVideo\u95a2\u6570\u306f\u6307\u5b9a\u3057\u305fURL\u304b\u3089\u30d3\u30c7\u30aa\u30d5\u30a1\u30a4\u30eb\u3092\u30ed\u30fc\u30ab\u30eb\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u3078\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002processVideo\u95a2\u6570\u306fFFmpeg\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066\u3001\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3055\u308c\u305f\u30d3\u30c7\u30aa\u30d5\u30a1\u30a4\u30eb\u3092\u5225\u306e\u51fa\u529b\u30d5\u30a1\u30a4\u30eb\u3078\u8907\u88fd\u3057\u307e\u3059\u3002FFmpeg\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u306f\u5b9f\u969b\u306e\u30cb\u30fc\u30ba\u306b\u5408\u308f\u305b\u3066\u5909\u66f4\u3057\u3001\u30d3\u30c7\u30aa\u51e6\u7406\u306e\u3055\u307e\u3056\u307e\u306a\u30bf\u30b9\u30af\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u4f8b\u306f\u3001Go\u8a00\u8a9e\u3068FFmpeg\u3092\u4f7f\u3063\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7d4c\u7531\u306e\u52d5\u753b\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3092\u5b9f\u88c5\u3059\u308b\u57fa\u672c\u7684\u306a\u65b9\u6cd5\u3092\u793a\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u5b9f\u969b\u306b\u5229\u7528\u3059\u308b\u969b\u306b\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u304c\u3067\u304d\u306a\u3044\u3001\u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u66f8\u304d\u304c\u3067\u304d\u306a\u3044\u306a\u3069\u306e\u4f8b\u5916\u7684\u306a\u72b6\u6cc1\u3092\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Go\u8a00\u8a9e\u3068FFmpeg\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u52d5\u753b\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u7c21\u5358\u306a\u624b\u9806\u3068\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u793a\u3057\u307e\u3059\u3002 \u624b\u9806: Go\u306e\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u542b\u307e\u308c\u308bhttp\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u5229\u7528\u3057\u3066Web\u304b\u3089\u52d5\u753b\u30d5\u30a1\u30a4 [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-123383","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\u3068FFmpeg\u3067\u30cd\u30c3\u30c8\u4e0a\u306e\u52d5\u753b\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\u30c6\u30af\u30cb\u30ab\u30eb\u306a\u5b9f\u73fe - 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\u3068ffmpeg\u3067\u30cd\u30c3\u30c8\u4e0a\u306e\u52d5\u753b\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\u30c6\u30af\u30cb\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Go\u3068FFmpeg\u3067\u30cd\u30c3\u30c8\u4e0a\u306e\u52d5\u753b\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\u30c6\u30af\u30cb\u30ab\u30eb\u306a\u5b9f\u73fe\" \/>\n<meta property=\"og:description\" content=\"Go\u8a00\u8a9e\u3068FFmpeg\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u52d5\u753b\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u7c21\u5358\u306a\u624b\u9806\u3068\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u793a\u3057\u307e\u3059\u3002 \u624b\u9806: 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