{"id":10830,"date":"2023-05-07T23:43:05","date_gmt":"2023-05-07T15:43:05","guid":{"rendered":"https:\/\/www.zhangxinxu.com\/wordpress\/?p=10830"},"modified":"2023-05-08T14:11:12","modified_gmt":"2023-05-08T06:11:12","slug":"js-imagedecoder-api-gif","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2023\/05\/js-imagedecoder-api-gif\/","title":{"rendered":"\u4f7f\u7528ImageDecoder API\u8ba9GIF\u56fe\u7247\u6682\u505c\u64ad\u653e"},"content":{"rendered":"<p>by <a href=\"https:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=10830\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=10830<\/a> \u946b\u7a7a\u95f4-\u946b\u751f\u6d3b<br \/>\n\u672c\u6587\u6b22\u8fce\u5206\u4eab\u4e0e\u805a\u5408\uff0c\u5168\u6587\u8f6c\u8f7d\u5c31\u4e0d\u5fc5\u4e86\uff0c\u5c0a\u91cd\u7248\u6743\uff0c\u5708\u5b50\u5c31\u8fd9\u4e48\u5927\uff0c\u82e5\u6025\u7528\u53ef\u4ee5\u8054\u7cfb\u6388\u6743\u3002<\/p>\n<p><script>window.wxShareImgUrl = 'https:\/\/www.zhangxinxu.com\/study\/image\/share\/202305-gif-pause.png';<\/script><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202305\/2023-05-07_233426.png\" width=\"423\" height=\"273\" alt=\"\u5360\u4f4d\u56fe\uff0c\u5934\u56fe\uff0c\u5c01\u9762\u56fe\" class=\"alignright clip thumb size-medium\" \/><\/p>\n<h3>\u4e00\u3001\u56de\u987e\u5386\u53f2<\/h3>\n<p>2015\u5e74\u7684\u65f6\u5019\uff0c\u6211\u66fe\u7814\u7a76\u5e76\u64b0\u5199\u8fc7\u4e00\u7bc7\u6587\u7ae0\uff0c\u201c<a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/2015\/12\/css3-animation-js-canvas-gif-pause-stop-play\/\">CSS\u6216JS\u5b9e\u73b0gif\u52a8\u6001\u56fe\u7247\u7684\u505c\u6b62\u4e0e\u64ad\u653e<\/a>\u201d\uff0c\u5176\u4e2d\u5c55\u793a\u4e86\u5404\u79cd\u6280\u672f\u5b9e\u73b0 GIF \u52a8\u56fe\u7684\u64ad\u653e\u63a7\u5236\u3002<\/p>\n<p>\u5e76\u572820\u5e74\u548c21\u5e74\u9646\u7eed\u66f4\u65b0\u4e86\u4f7f\u7528libgif.js\u6682\u505cgif\uff0c\u548c\u4f7f\u7528 apng-js \u6682\u505cAPNG\u3002<\/p>\n<p>\u89c4\u8303\u8fed\u4ee3\uff0c\u6280\u672f\u53d1\u5c55\u3002<\/p>\n<p>\u65f6\u95f4\u6765\u5230\u4e862023\u5e74\uff0c\u5bf9\u4e8eGIF\u52a8\u6001\u7684\u64ad\u653e\u4e0e\u6682\u505c\uff0c\u53c8\u6709\u4e86\u65b0\u7684\u6280\u672f\u5b9e\u73b0\uff0c\u5c31\u662f\u501f\u52a9\u6d4f\u89c8\u5668\u539f\u751f\u7684API\u3002<\/p>\n<p>\u7531\u4e8e\u539f\u751fAPI\uff0c\u6240\u4ee5\u5b9e\u73b0\u8981\u66f4\u52a0\u7b80\u5355\u3002<\/p>\n<p>\u94fa\u57ab\u4e86\u90a3\u4e48\u591a\uff0c\u8be5\u4e3b\u89d2\u51fa\u573a\u4e86\u3002<\/p>\n<p>\u8fd9\u4e2aAPI\u5c31\u662fImageDecoder\uff0c\u5c5e\u4e8e WebCodecs API\u4e2d\u7684\u4e00\u4e2a\u7ec6\u5206API\uff0c\u63d0\u4f9b\u4e86\u5bf9GIF\u56fe\u7247\u7684\u6bcf\u4e00\u5e27\u8fdb\u884c\u5904\u7406\u7684\u80fd\u529b\u3002<\/p>\n<p>\u4e0b\u9762\u5c31\u7b80\u5355\u4ecb\u7ecd\u4e0b\u5982\u4f55\u4f7f\u7528\u8fd9\u4e2aAPI\u89e3\u6790GIF\uff0c\u5e76\u63a7\u5236\u5176\u6682\u505c\u3002<\/p>\n<h3>\u4e8c\u3001\u89e3\u6790GIF\u5e76\u6682\u505c\u64ad\u653e<\/h3>\n<p>GIF\u672c\u8d28\u4e0a\u548c\u89c6\u9891\u4e00\u6837\uff0c\u90fd\u662f\u4e00\u5e27\u4e00\u5e27\u7684\u56fe\u7247\u62fc\u5408\u800c\u6210\uff0c\u6240\u4ee5\uff0c\u6682\u505cGIF\u529f\u80fd\u5b9e\u73b0\u7684\u8981\u70b9\uff0c\u5c31\u662f\u83b7\u53d6\u5177\u4f53\u67d0\u4e00\u5e27\u7684\u8d44\u6e90\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u4e8b\u60c5\u5176\u5b9e\u5f88\u7b80\u5355\u3002<\/p>\n<ol>\n<li>\u4f7f\u7528ImageDecoder API\u89e3\u6790GIF\u6bcf\u4e00\u5e27\u7684\u56fe\u50cf\u8d44\u6e90\uff1b<\/li>\n<li>\u5c06\u8be5\u56fe\u50cf\u8d44\u6e90\u7ed8\u5236\u5728canvas\u753b\u5e03\u4e0a\u3002<\/li>\n<\/ol>\n<h4>1. \u8d44\u6e90\u83b7\u53d6<\/h4>\n<p>\u4f7f\u7528<code>fetch<\/code>\u65b9\u6cd5\u5373\u53ef\u3002<\/p>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre>fetch(\"by-zhangxinxu.gif\").then((response) => {\r\n    \/\/ response.body \u5c31\u662f\u56fe\u50cf\u8d44\u6e90\u6570\u636e\r\n});<\/pre>\n<p>\u8fd9\u91cc\uff0c\u5982\u679cGIF\u56fe\u50cf\u8de8\u57df\uff0c\u5219\u6709\u53ef\u80fd\u4f1a\u83b7\u53d6\u5931\u8d25\u3002<\/p>\n<h4>2. \u89e3\u6790<\/h4>\n<p>\u4e0b\u9762\u8f6e\u5230ImageDecoder\u51fa\u9a6c\u4e86\uff0c\u6211\u4eec\u53ef\u4ee5\u5229\u7528\u4e0a\u9762\u8fd4\u56de\u7684\u56fe\u50cf\u8d44\u6e90\u6570\u636e\u6784\u9020\u4e00\u4e2a <code>imageDecoder<\/code> \u5bf9\u8c61\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>const imageDecoder = new ImageDecoder({ \r\n    data: response.body, \r\n    type: \"image\/gif\" \r\n});<\/pre>\n<p>\u6b64\u65f6\uff0c<code>imageDecoder<\/code>\u5bf9\u8c61\u5c31\u5305\u542b\u4e86\u4e00\u7cfb\u5217\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u7528\u6765\u5bf9\u89e3\u6790\u597d\u7684\u56fe\u50cf\u6570\u636e\u8fdb\u884c\u5404\u79cd\u5404\u6837\u7684\u5904\u7406\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u6211\u4eec\u5e0c\u671b\u83b7\u53d6GIF\u7b2c\u4e00\u5e27\u7684\u56fe\u5f62\u6570\u636e\uff0c\u5219\u53ef\u4ee5\uff1a<\/p>\n<pre>imageDecoder.decode({ \r\n    frameIndex: 1\r\n}).then((result) => {\r\n    \/\/ result \u5bf9\u8c61\u5c31\u662f\u89e3\u6790\u540e\u7684\u7ed3\u679c\r\n});<\/pre>\n<p>\u8fd9\u91cc\u7684 result \u5bf9\u8c61\u5305\u62ec\u4e0b\u9762\u8fd9\u4e9b\u5c5e\u6027\uff1a<\/p>\n<pre>{\r\n    \/\/ \u89e3\u7801\u7684\u56fe\u50cf\r\n    image: VideoFrame,\r\n    \/\/ \u5982\u679c\u4e3atrue\uff0c\u5219\u8868\u793a\u8be5\u56fe\u50cf\u5305\u542b\u6700\u7ec8\u7684\u5b8c\u6574\u7ec6\u8282\u8f93\u51fa\u3002\r\n    complete: boolean\r\n}<\/pre>\n<p>\u5728\u672c\u573a\u666f\u4e2d\uff0c\u6211\u4eec\u9700\u8981\u7684\u662f <code>result.image<\/code>\uff0c\u6b64\u503c\u53ef\u4ee5\u4f5c\u4e3a ImageSource \u7ed8\u5236\u5728 canvas \u753b\u5e03\u4e0a\u3002<\/p>\n<h4>3. \u7ed8\u5236<\/h4>\n<p>\u521b\u5efa\u4e00\u4e2a canvas\uff0c\u5c3a\u5bf8\u8bbe\u7f6e\u4e3a\u548c\u539f\u59cb\u7684GIF\u56fe\u50cf\u4e00\u81f4\uff0c\u7136\u540e\u5c31\u53ef\u4ee5\u7ed8\u5236\u4e86\u3002<\/p>\n<p>\u793a\u610f\uff1a<\/p>\n<pre>const canvas = document.querySelector(\"canvas\");\r\nconst context = canvas.getContext(\"2d\");\r\n\r\ncontext.drawImage(result.image, 0, 0);<\/pre>\n<p>\u6b64\u65f6\uff0c\u753b\u5e03\u4e0a\u5c31\u6709\u7b2c\u4e00\u5e27\u7684GIF\u56fe\u50cf\u4e86\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\u7684\u4e8b\u60c5\u5c31\u5f88\u7b80\u5355\u4e86\uff0c\u6839\u636e\u6bcf\u4e00\u5e27\u7684\u65f6\u95f4\u95f4\u9694\uff0c\u7ed8\u5236\u4e0b\u4e00\u5e27\u5373\u53ef\u3002<\/p>\n<p><code>result.image<\/code> \u7684\u8fd4\u56de\u503c\u662f\u4e00\u4e2a <code>VideoFrame<\/code> \u5bf9\u8c61\uff0c\u5305\u542b\u5f88\u591a\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u4f8b\u5982\uff0c\u5e27\u56fe\u50cf\u7684\u7f16\u7801\u5c3a\u5bf8\uff0c\u663e\u793a\u5c3a\u5bf8\uff0c\u65f6\u95f4\u6233\uff0c\u65f6\u95f4\u95f4\u9694\u7b49\uff0c\u5177\u4f53\u89c1<a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API\/VideoFrame\" rel=\"noopener\" target=\"_blank\">\u6587\u6863<\/a>\u3002<\/p>\n<p>\u5176\u4e2d\uff0c<code>result.image.duration<\/code> \u5c31\u662f\u6bcf\u4e00\u5e27\u7684\u65f6\u95f4\u95f4\u9694\uff0c\u5355\u4f4d\u662f\u6beb\u79d2\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u57fa\u4e8e\u6b64\u503c\uff0c\u5916\u52a0 setTimeout \u5b9a\u65f6\u5668\uff0c\u5728canvas\u4e0a\u6a21\u62df\u51fa\u5b8c\u6574\u7684GIF\u7ed8\u5236\u5566\u3002<\/p>\n<pre>setTimeout(() => {\r\n    \/\/ \u7ed8\u5236\u4e0b\u4e00\u5e27\u7684 result.image\r\n}, result.image.duration \/ 1000.0);<\/pre>\n<h4>\u6781\u7b80demo\u793a\u610f<\/h4>\n<p>\u4e3a\u4e86\u65b9\u4fbf\u5927\u5bb6\u7684\u7406\u89e3\u548c\u5b66\u4e60\uff0c\u6211\u505a\u4e86\u4e2a\u975e\u5e38\u7b80\u6613\u7684\u6f14\u793a\u9875\u9762\u3002<\/p>\n<p>\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/study\/202305\/git-play.html\" rel=\"noopener\" target=\"_blank\">GIF\u89e3\u6790\u5e76\u70b9\u51fb\u6682\u505c\/\u64ad\u653edemo<\/a><\/p>\n<p>\u6e90\u4ee3\u7801\u76f4\u63a5\u53f3\u952e\u67e5\u770b\u5373\u53ef\u3002<\/p>\n<p>\u5728Chrome\u6d4f\u89c8\u5668\u4e0b\uff0c\u70b9\u51fb\u201c\u82cf\u6a80\u513f\u201d\uff0c\u5c31\u53ef\u4ee5\u770b\u5230\u5176\u52a8\u4f5c\u6682\u505c\u4e86\u3002<\/p>\n<p>\u5982\u4e0b\u56fe\u793a\u610f\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202305\/2023-05-07_115737.png\" width=\"472\" height=\"306\" alt=\"demo\u6f14\u793a\u793a\u610f\" class=\"alignnone size-medium\" \/><\/p>\n<h3>\u4e09\u3001\u5c01\u88c5\u4e0e\u5f00\u6e90<\/h3>\n<p>\u4e3a\u4e86\u4fbf\u4e8e\u5927\u5bb6\u63a7\u5236GIf\u7684\u64ad\u653e\u4e0e\u6682\u505c\uff0c\u6211\u5c06\u4e0a\u9762\u7684\u90a3\u5957\u5b9e\u73b0\u5c01\u88c5\u6210\u4e86\u66f4\u52a0\u65b9\u4fbf\u8c03\u7528\u7684\u5c0f\u7ec4\u4ef6\uff0c\u5e76\u4e14\u5728gitee\u4e0a\u5f00\u6e90\u4e86\u3002<\/p>\n<p>\u8bbf\u95ee\u8bbf\u95ee\u9879\u76ee\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"https:\/\/gitee.com\/zhangxinxu\/gif-pause\" rel=\"noopener\" target=\"_blank\">https:\/\/gitee.com\/zhangxinxu\/gif-pause<\/a><\/p>\n<p><span class=\"s\">PS\uff1a\u6b22\u8fce\u5173\u6ce8\u6211\u7684gitee\u8d26\u53f7\uff0c\u4e0d\u5b9a\u671f\u66f4\u65b0\u4e00\u4e9b\u5c0f\u73a9\u5177\u3002<\/span><\/p>\n<p>\u5bf9\u5e94\u7684JS\u8d44\u6e90\u5728src\u76ee\u5f55\u4e2d\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202305\/2023-05-07_221027.png\" width=\"593\" height=\"431\" alt=\"\u622a\u56fe\u793a\u610f\" class=\"alignnone size-medium\" \/><\/p>\n<h4>\u4f7f\u7528\u8bf4\u660e<\/h4>\n<ol>\n<li>\u5f15\u5165\u5bf9\u5e94\u7684 JS \u6587\u4ef6\uff0c\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n<pre>&lt;script src=\".\/src\/renderGif.js\"&gt;&lt;\/script&gt;<\/pre>\n<ol start=\"2\">\n<li>\u5bf9\u5e94\u7684GIF\u56fe\u50cf\u5143\u7d20\u8fdb\u884c\u8c03\u7528\uff1a<\/li>\n<\/ol>\n<pre>renderGif(eleImage);<\/pre>\n<p>\u5c31\u53ef\u4ee5\u5b9e\u73b0\u70b9\u51fbGIF\u6682\u505c\u64ad\u653e\u7684\u6548\u679c\u4e86\u3002<\/p>\n<p>\u5f53\u7136\uff0c\u4e5f\u652f\u6301\u5728\u5916\u90e8\u624b\u52a8\u89e6\u53d1GIF\u7684\u64ad\u653e\u4e0e\u6682\u505c\u3002\u4f7f\u7528\u793a\u610f\uff1a<\/p>\n<pre>const player = renderGif(eleImage, {\r\n  bindEvent: false\r\n});\r\n\r\n\/\/ \u70b9\u51fb\u6309\u94ae\uff0cGIF\u6682\u505c\u64ad\u653e\r\nbutton.onclick = function () {\r\n  player.pause();\r\n}<\/pre>\n<h4>\u6f14\u793a\u9875\u9762<\/h4>\n<p>\u773c\u89c1\u4e3a\u5b9e\uff0c\u60a8\u53ef\u4ee5\u7528\u529b\u6233\u8fd9\u91cc\u8bbf\u95ee\uff1a<a href=\"https:\/\/zhangxinxu.gitee.io\/gif-pause\/\" rel=\"nofollow\">https:\/\/zhangxinxu.gitee.io\/gif-pause\/<\/a><\/p>\n<p>\u4f8b\u5982\uff0c\u70b9\u51fb\u201c\u6682\u505c\u201d\u6309\u94ae\uff0c\u5eb7\u5a1c\u7684\u9ad8\u80fd\u70ae\u5c31\u505c\u6b62\u53d1\u5c04\u4e86\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202305\/2023-05-07_221943.png\" width=\"289\" height=\"252\" alt=\"GIf\u5916\u90e8\u6682\u505c\u793a\u610f\" class=\"alignnone size-medium\" \/><\/p>\n<h4>\u8bed\u6cd5\u548c\u53c2\u6570<\/h4>\n<h5>\u8bed\u6cd5<\/h5>\n<pre>const player = renderGif(data, options);<\/pre>\n<h5>\u53c2\u6570<\/h5>\n<p><strong>data<\/strong><\/p>\n<p><code>data<\/code> \u53c2\u6570\u53ef\u7f3a\u7701\uff0c\u5982\u679c\u4e0d\u8bbe\u7f6e\uff0c\u8868\u793a\u83b7\u53d6\u5f53\u524d\u9875\u9762\u4e2d\u6240\u6709\u4ee5 &#8216;.gif&#8217; \u4e3a\u540e\u7f00\u7684 IMG \u5143\u7d20\u5e76\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<p><code>data<\/code> \u53c2\u6570\u53ef\u4ee5\u662f\u5b57\u7b26\u4e32\uff0c\u8868\u793a\u5bf9\u5e94\u5143\u7d20\u9009\u62e9\u5668\uff1b\u53ef\u4ee5\u662fDOM\u5bf9\u8c61\uff1b\u4e5f\u53ef\u4ee5\u662f NodeList \u5bf9\u8c61\uff0c\u6216\u8005 HTMLCollection\u3001HTMLAllCollection \u5bf9\u8c61\u3002<\/p>\n<p><strong>options<\/strong><\/p>\n<p><code>options<\/code> \u662f\u53ef\u9009\u53c2\u6570\uff0c\u76ee\u524d\u4ec5\u652f\u6301\u4e00\u4e2a\u5c5e\u6027\u503c\u3002<\/p>\n<pre>{\r\n    bindEvent: true\r\n}<\/pre>\n<p>\u8868\u793a\u662f\u5426\u7ed9GIF\u56fe\u7247\u7ed1\u5b9a\u70b9\u51fb\u6682\u505c\u884c\u4e3a\uff0c\u5982\u679c\u8bbe\u7f6e bindEvent \u4e3a false\uff0c\u53ef\u4ee5\u4f7f\u7528\u8fd4\u56de\u503c <code>player<\/code> \u5bf9GIF\u7684\u64ad\u653e\u548c\u6682\u505c\u8fdb\u884c\u624b\u52a8\u63a7\u5236\u3002<\/p>\n<h4>\u8fd4\u56de\u503c<\/h4>\n<p><code>player<\/code> \u8fd4\u56de\u503c\u5305\u542b\u4e86\u4ee5\u4e0b\u5c5e\u6027\u548c\u65b9\u6cd5\uff1a<\/p>\n<pre>{   \r\n    \/\/ \u5f53\u524d GIF \u56fe\u50cf\u5143\u7d20\u5bf9\u8c61\r\n    element: null,\r\n    \/\/ GIF \u662f\u5426\u6682\u505c\u4e2d\uff0c\u53ea\u8bfb\r\n    paused: false,\r\n    \/\/ \u7ee7\u7eed\u64ad\u653e\r\n    play: function () {},\r\n    \/\/ \u6682\u505c\u64ad\u653e\r\n    pause: function () {},\r\n    \/\/ \u5f53\u524d\u5e27\uff0c\u53ea\u8bfb\r\n    frameIndex: -1\r\n}<\/pre>\n<h3>\u56db\u3001ImageDecoder API\u7b80\u4ecb<\/h3>\n<p>\u987a\u4fbf\u7b80\u5355\u4ecb\u7ecd\u4e0bImageDecoder\u7684\u5404\u4e2a\u5c5e\u6027\u548c\u65b9\u6cd5\u3002<\/p>\n<h4>\u6784\u9020\u5668<\/h4>\n<dl>\n<dt><strong>ImageDecoder()<\/strong><\/dt>\n<dd>\u521b\u5efa\u4e00\u4e2a\u65b0\u7684ImageDecoder\u5bf9\u8c61\u3002<\/dd>\n<\/dl>\n<h4>\u5b9e\u4f8b\u5c5e\u6027<\/h4>\n<dl>\n<dt><strong>ImageDecoder.complete<\/strong><\/dt>\n<dd>\u8fd4\u56de\u4e00\u4e2a\u5e03\u5c14\u503c\uff0c\u8868\u793a\u7f16\u7801\u7684\u6570\u636e\u662f\u5426\u5df2\u7ecf\u5b8c\u5168\u7f13\u51b2\u3002<\/dd>\n<dt><strong>ImageDecoder.completed<\/strong><\/dt>\n<dd>\u8fd4\u56de\u4e00\u4e2aPromise\uff0c\u5f53complete\u4e3atrue\u7684\u65f6\u5019\uff0c\u4f1a\u7acb\u5373\u89e6\u53d1resolves\u3002<\/dd>\n<dt><strong>ImageDecoder.tracks<\/strong><\/dt>\n<dd>\u8fd4\u56de\u4e00\u4e2aImageTrackList\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u5217\u51fa\u4e86\u53ef\u7528\u8f68\u9053\uff0c\u5e76\u63d0\u4f9b\u4e86\u53ef\u4ee5\u89e3\u7801\u8f68\u9053\u6570\u636e\u7684\u65b9\u6cd5\u3002<\/dd>\n<dt><strong>ImageDecoder.type<\/strong><\/dt>\n<dd>\u8fd4\u56de\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u8868\u793a\u5728\u4f7f\u7528new\u6784\u9020\u65f6\u5019\u914d\u7f6e\u7684MIME\u7c7b\u578b\u3002<\/dd>\n<\/dl>\n<h4>\u9759\u6001\u65b9\u6cd5<\/h4>\n<dl>\n<dt><strong>ImageDecoder.isTypeSupported()<\/strong><\/dt>\n<dd>\u6307\u793a\u662f\u5426\u652f\u6301\u63d0\u4f9b\u7684MIME\u7c7b\u578b\u8fdb\u884c\u7f16\u89e3\u7801\u3002<\/dd>\n<\/dl>\n<h4>\u5b9e\u4f8b\u65b9\u6cd5<\/h4>\n<dl>\n<dt><strong>ImageDecoder.close()<\/strong><\/dt>\n<dd>\u7ed3\u675f\u6240\u6709\u6302\u8d77\u7684\u5de5\u4f5c\u5e76\u91ca\u653e\u7cfb\u7edf\u8d44\u6e90\u3002<\/dd>\n<dt><strong>ImageDecoder.decode()<\/strong><\/dt>\n<dd>\u5bf9\u56fe\u50cf\u7684\u5e27\u8fdb\u884c\u89e3\u7801\u3002<\/dd>\n<dt><strong>ImageDecoder.reset()<\/strong><\/dt>\n<dd>\u4e2d\u6b62\u6240\u6709\u8fdb\u884c\u4e2d\u7684\u7684decode()\u64cd\u4f5c\u3002<\/dd>\n<\/dl>\n<p>\u5404\u4e2a\u5c5e\u6027\u6216\u65b9\u6cd5\u66f4\u6df1\u5165\u7684\u4f7f\u7528\uff0c\u53ef\u4ee5\u8bbf\u95ee<a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API\/ImageDecoder\" rel=\"noopener\" target=\"_blank\">MDN\u6587\u6863<\/a>\u8fdb\u884c\u4e86\u89e3\u3002<\/p>\n<h4>\u517c\u5bb9\u6027<\/h4>\n<p>\u76ee\u524dImageDecoder\u4ec5Chrome\u6d4f\u89c8\u5668\u652f\u6301\uff0c\u56e0\u6b64\uff0c\u672c\u6587\u51fa\u73b0\u7684\u51e0\u4e2ademo\u9875\u9762\u4e5f\u53ea\u6709\u5728Chrome\u6d4f\u89c8\u5668\u4e0b\u8bbf\u95ee\u624d\u6709\u6548\u679c\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202305\/2023-05-07_222926.png\" width=\"651\" height=\"257\" alt=\"ImageDecoder\u7684\u517c\u5bb9\u6027\u8868\" class=\"alignnone size-medium\" \/><\/p>\n<h3>\u4e94\u3001\u603b\u7ed3\u53ca\u65b0\u4e66\u62bd\u5956<\/h3>\n<p>\u9664\u4e86GIF\u89e3\u6790\uff0cWeb\u73b0\u5728\u8fd8\u53ef\u4ee5\u89e3\u6790\u89c6\u9891\u548c\u97f3\u9891\uff0c\u751a\u81f3\u5408\u6210\u97f3\u9891\u3002<\/p>\n<p>\u4e0b\u4e00\u4e2a\u5206\u4eab\uff0c\u6211\u5c31\u4f1a\u5c1d\u8bd5\u5229\u7528Web\u5df2\u6709API\uff0c\u8ba9\u56fe\u7247\u5e8f\u5217\u5408\u6210\u4e3a\u89c6\u9891\u3002<\/p>\n<p>OK\uff0c\u8bf4\u70b9\u5176\u4ed6\u7684\u3002<\/p>\n<p>\u300aCSS\u9009\u62e9\u5668\u4e16\u754c \u7b2c2\u7248\u300b\u5df2\u7ecf\u4eac\u4e1c\u4e0a\u67b6\u4e86\uff0c<a href=\"https:\/\/item.jd.com\/10072853342284.html\" rel=\"noopener\" target=\"_blank\" target=\"_blank\">\u8d2d\u4e70\u94fe\u63a5\u70b9\u51fb\u8fd9\u91cc<\/a>\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202305\/2023-04-26_004058.jpg\" width=\"150\" height=\"183\" alt=\"CSS\u9009\u62e9\u5668\u4e16\u754c \u7b2c2\u7248\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u53e6\u5916\uff0c\u73b0\u5728\u518dB\u7ad9\u6709\u4e2a\u62bd\u5956\u6d3b\u52a8\uff0c\u53ea\u8981\u5728<a href=\"https:\/\/www.bilibili.com\/video\/BV1Lm4y1y7rG\/\" rel=\"noopener\" target=\"_blank\">\u4e0b\u9762\u7684\u89c6\u9891<\/a>\uff08\u70b9\u51fb\u56fe\u7247\u5373\u53ef\u8bbf\u95ee\uff09\u4e0b\u65b9\u8bc4\u8bba\uff0c\u5c31\u6709\u5c31\u4f1a\u83b7\u5f97\u300aCSS\u9009\u62e9\u5668\u4e16\u754c \u7b2c2\u7248\u300b\u7b7e\u5b57\u7248\u3002<\/p>\n<p><a href=\"https:\/\/www.bilibili.com\/video\/BV1Lm4y1y7rG\/\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202305\/2023-05-07_232948.jpg\" width=\"360\" height=\"264\" alt=\"B\u7ad9\u89c6\u9891\u622a\u56fe\" class=\"alignnone size-medium\" \/><\/a><\/p>\n<p>\u795d\u5927\u5bb6\u597d\u8fd0\uff01<\/p>\n<p>???<\/p>\n<p>\u672c\u6587\u4e3a\u539f\u521b\u6587\u7ae0\uff0c\u6b22\u8fce\u5206\u4eab\uff0c\u52ff\u5168\u6587\u8f6c\u8f7d\uff0c\u5982\u679c\u5b9e\u5728\u559c\u6b22\uff0c\u53ef\u6536\u85cf\uff0c\u6c38\u4e0d\u8fc7\u671f\uff0c\u4e14\u4f1a\u53ca\u65f6\u66f4\u65b0\u77e5\u8bc6\u70b9\u53ca\u4fee\u6b63\u9519\u8bef\uff0c\u9605\u8bfb\u4f53\u9a8c\u4e5f\u66f4\u597d\u3002<br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=10830\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=10830<\/a><\/p>\n<p>\uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202305\/2023-05-07_233426.png\" width=\"160\" height=\"103\" alt=\"\u5360\u4f4d\u56fe\uff0c\u5934\u56fe\uff0c\u5c01\u9762\u56fe\" class=\"alignright size-medium\" loading=\"lazy\" \/><\/p>\n<p>ImageDecoder\u662f\u6d4f\u89c8\u5668\u652f\u6301\u7684\u539f\u751fAPI\uff0c\u53ef\u4ee5\u5bf9GIF\u52a8\u56fe\u8fdb\u884c\u9010\u5e27\u89e3\u6790\u6e32\u67d3\uff0c\u64ad\u653e\u63a7\u5236\uff0c\u56fe\u50cf\u5904\u7406\uff0c\u6c34\u5370\u6dfb\u52a0\u7b49\uff0c\u90fd\u4e0d\u5728\u8bdd\u4e0b\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1284],"tags":[945,53,168,1916,1648,1917],"_links":{"self":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/10830"}],"collection":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/comments?post=10830"}],"version-history":[{"count":0,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/10830\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/media?parent=10830"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/categories?post=10830"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/tags?post=10830"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}