{"id":5720,"date":"2024-06-16T11:53:19","date_gmt":"2024-06-16T02:53:19","guid":{"rendered":"https:\/\/taitan916.info\/blog\/?p=5720"},"modified":"2024-06-16T12:26:27","modified_gmt":"2024-06-16T03:26:27","slug":"post-5720","status":"publish","type":"post","link":"https:\/\/taitan916.info\/blog\/archives\/5720","title":{"rendered":"PHP\u3067jpg \/ png\u753b\u50cf\u3092AVIF\u5f62\u5f0f\u306e\u753b\u50cf\u306b\u5909\u63db\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<p>PHP\u3067jpg \/ png\u753b\u50cf\u3092AVIF\u5f62\u5f0f\u306e\u753b\u50cf\u306b\u5909\u63db\u3057\u30b5\u30fc\u30d0\u306b\u4fdd\u5b58\u3057\u305f\u3044\u3002WebP\u753b\u50cf\u3060\u3068<a href=\"https:\/\/taitan916.info\/blog\/archives\/4611\" target=\"_blank\" rel=\"noopener\">class.upload.php\u3092\u4f7f\u3046<\/a>\u306e\u304c\u697d\u3067\u826f\u3044\u3093\u3060\u3051\u3069AVIF\u753b\u50cf\u306f\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u6a21\u69d8\u3002\u305d\u306e\u305f\u3081\u30d0\u30cb\u30e9PHP\u306b\u3066AVIF\u753b\u50cf\u306b\u5909\u63db(\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u5727\u7e2e)\u3059\u308b\u65b9\u6cd5\u3092\u30e1\u30e2\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9<\/h2>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">&lt;?php\r\n$file = '.\/001.png';\r\n$quality = 30;\r\n\r\nchangeAVIF($file, $quality);\r\n\r\nfunction changeAVIF( $file, $quality = 30 ){\r\n    $path_parts = pathinfo($file);\r\n    $ext = $path_parts['extension'];\r\n\r\n    if( $ext == 'jpg' ){\r\n        $old_img = imagecreatefromjpeg($file);\r\n    }else if( $ext == 'png' ){\r\n        $old_img = imagecreatefrompng($file);\r\n    }else{\r\n        return false;\r\n    }\r\n\r\n    imageavif($old_img, $path_parts['filename'] . '.avif', $quality);\r\n}<\/pre>\n<p>changeAVIF\u95a2\u6570\u306e\u7b2c\u4e00\u5f15\u6570\u306b\u5909\u63db\u3057\u305f\u3044\u30d5\u30a1\u30a4\u30eb\u30d1\u30b9\u3092\u3001\u7b2c\u4e8c\u5f15\u6570\u306b\u5727\u7e2e\u5177\u5408\u3092\u6570\u5024\u3092\u6e21\u3059\u3068\u5909\u63db\u3055\u308c\u308b\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>imageavif<\/h2>\n<h3>\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9<\/h3>\n<p><a href=\"https:\/\/www.php.net\/manual\/ja\/function.imageavif.php\" target=\"_blank\" rel=\"noopener\">https:\/\/www.php.net\/manual\/ja\/function.imageavif.php<\/a><\/p>\n<h3>\u6ce8\u610f\u70b9<\/h3>\n<h4>\u5727\u7e2e\u7528\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u306f30<\/h4>\n<p>\u5727\u7e2e\u306b\u95a2\u3057\u3066\u7b2c\u4e09\u5f15\u6570\u3067\u8a2d\u5b9a\u3059\u308b\u30020\uff5e100\u307e\u3067\u3067\u6570\u5024\u306e\u5927\u304d\u3044\u65b9\u304c\u753b\u8cea\u304c\u9ad8\u304f\u306a\u308b\u3002\u5c1a\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u306f30\u306b\u306a\u308b\u70b9\u306b\u6ce8\u610f\u3002<\/p>\n<h4>PHP\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306f8.1\u4ee5\u4e0a<\/h4>\n<p>imageavif\u95a2\u6570\u304c\u4f7f\u3048\u308b\u306e\u306fPHP\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u304c8.1\u4ee5\u4e0a\u3068\u306a\u308b\u70b9\u306b\u6ce8\u610f\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>\u305d\u306e\u4ed6<\/h2>\n<h3>\u5727\u7e2e\u5f8c\u306e\u30b5\u30a4\u30ba\u306b\u3064\u3044\u3066<\/h3>\n<p>\u5727\u7e2e\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u30c7\u30d5\u30a9\u30eb\u30c8\u306e30\u3067\u8a66\u3057\u305f\u3068\u3053\u308d\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u7d0410\u5206\u306e1\u306b\u306a\u3063\u305f\u3002<\/p>\n<ul>\n<li>png 1,074,853byte -&gt; 117,227byte<\/li>\n<li>jpg 117,227byte -&gt; 11,903byte<\/li>\n<\/ul>\n<h3>AVIF\u306e\u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6\u306b\u3064\u3044\u3066<\/h3>\n<p><a href=\"https:\/\/caniuse.com\/avif\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089\u306e\u30b5\u30a4\u30c8<\/a>\u3092\u898b\u308b\u9650\u308a\u4e3b\u8981\u30d6\u30e9\u30a6\u30b6\u306f\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u6a21\u69d8\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP\u3067jpg \/ png\u753b\u50cf\u3092AVIF\u5f62\u5f0f\u306e\u753b\u50cf\u306b\u5909\u63db\u3057\u30b5\u30fc\u30d0\u306b\u4fdd\u5b58\u3057\u305f\u3044\u3002W ... <\/p>\n","protected":false},"author":1,"featured_media":1085,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[2],"tags":[91],"class_list":["post-5720","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-php","tag-image"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/posts\/5720","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/comments?post=5720"}],"version-history":[{"count":3,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/posts\/5720\/revisions"}],"predecessor-version":[{"id":5723,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/posts\/5720\/revisions\/5723"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/media\/1085"}],"wp:attachment":[{"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/media?parent=5720"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/categories?post=5720"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/taitan916.info\/blog\/wp-json\/wp\/v2\/tags?post=5720"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}