{"id":9925,"date":"2021-04-25T11:58:15","date_gmt":"2021-04-25T03:58:15","guid":{"rendered":"https:\/\/www.zhangxinxu.com\/wordpress\/?p=9925"},"modified":"2021-04-25T11:58:15","modified_gmt":"2021-04-25T03:58:15","slug":"js-video-decode-jsmpeg-broadway","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2021\/04\/js-video-decode-jsmpeg-broadway\/","title":{"rendered":"JS\u89c6\u9891\u89e3\u7801JSMpeg\u548cBroadway\u5f00\u7bb1\u6d4b\u8bc4"},"content":{"rendered":"<p>by <a href=\"https:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=9925\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=9925<\/a><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\/202104-jsmpeg-boradway.png';<\/script><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202104\/ningmeng-cover.png\" width=\"480\" height=\"303\" alt=\"\u67e0\u6aac\u5360\u4f4d\u56fe\" class=\"alignright clip thumb size-medium\" \/><\/p>\n<p>\u4e0a\u5468\u4f53\u9a8c\u4e86Vap\uff0c\u53ef\u4ee5\u4f7f\u7528webGL\u89e3\u7801\u5e76\u64ad\u653e\u89c6\u9891\uff0c\u5199\u4e86\u7bc7\u6587\u7ae0\u8bb0\u5f55\u4e86\u4e0b\u3002<\/p>\n<p>\u7136\u540e\u5c31\u6709\u4eba\u5728\u6587\u7ae0\u4e0b\u9762\u63d0\u5230\uff0c\u5982\u679c\u4ec5\u4ec5\u662f\u4f7f\u7528webGL\u64ad\u653eMP4\uff0c\u53ef\u4ee5\u8bd5\u8bd5JSmpeg\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202104\/2021-04-23_192918.png\" width=\"705\" height=\"188\" alt=\"\u8bc4\u8bba\u5185\u5bb9\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u7136\u540e\u6211\u5c31\u53bb\u5f00\u7bb1\u4f53\u9a8c\u4e86\u3002<\/p>\n<h3>\u4e00\u3001\u5173\u4e8eJSmpeg<\/h3>\n<p>JSmpeg\u7684\u9879\u76ee\u5730\u5740\u662f\uff1a<a href=\"https:\/\/github.com\/phoboslab\/jsmpeg\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/github.com\/phoboslab\/jsmpeg<\/a><\/p>\n<p>Star\u5c45\u7136\u67095.3K\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202104\/2021-04-23_131939.png\" width=\"433\" height=\"65\" alt=\"5.3K\u661f\u661f\u6570\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u4f7f\u7528\u5012\u662f\u5f88\u7b80\u5355\uff0c\u5f15\u5165\u4e00\u6bb5JS\uff0c\u51c6\u5907\u597d\u64ad\u653e\u7684\u89c6\u9891\u8d44\u6e90\uff0c\u7136\u540e\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n<p>\u8fd9\u662f\u5b98\u7f51\u5730\u5740\uff1a<a href=\"https:\/\/jsmpeg.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/jsmpeg.com\/<\/a><\/p>\n<p>\u8fd9\u662f\u4f7f\u7528\u4ee3\u7801\u793a\u610f\uff1a<\/p>\n<pre><span>&lt;<span><span class=\"hljs-keyword\">script<\/span><\/span> <span>src<\/span>=<span><span class=\"hljs-string\">\"jsmpeg.min.js\"<\/span><\/span>&gt;<\/span><span>&lt;\/<span><span class=\"hljs-keyword\">script<\/span><\/span>&gt;<\/span>\r\n<span>&lt;<span><span class=\"hljs-keyword\">div<\/span><\/span> <span><span class=\"hljs-built_in\">class<\/span><\/span>=<span><span class=\"hljs-string\">\"jsmpeg\"<\/span><\/span> <span>data-url<\/span>=<span><span class=\"hljs-string\">\"video.ts\"<\/span><\/span>&gt;<\/span><span>&lt;\/<span><span class=\"hljs-keyword\">div<\/span><\/span>&gt;<\/span><\/pre>\n<p>\u8fd9\u662f\u5b98\u65b9\u7684\u89c6\u9891\u64ad\u653e\u6548\u679c\u622a\u56fe\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202104\/2021-04-23_132400.jpg\" width=\"480\" height=\"269\" alt=\"\u5b98\u65b9\u6548\u679c\u622a\u56fe\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u770b\u8d77\u6765\u5f88\u9177\u54e6\u3002<\/p>\n<p>\u8feb\u4e0d\u53ca\u5f85\u5c1d\u8bd5\u4e0b\u3002<\/p>\n<p>\u5148\u968f\u610f\u627e\u4e86\u4e2aMP4\u6587\u4ef6\u3002<\/p>\n<p>\u7ed3\u679c\u63d0\u793a\uff1aJSMpeg: Possible garbage data. Skipping.<\/p>\n<p>\u5c31\u662f\u6709\u810f\u6570\u636e\u7684\u610f\u601d\u3002<\/p>\n<p>\u770b\u4e86\u4e0b\u9879\u76ee\u8bf4\u660e\uff0c\u9700\u8981\u662fMPEG1 Video &amp; MP2 Audio\u7f16\u7801\u683c\u5f0f\u624d\u80fd\u89e3\u7801\u3002<\/p>\n<p>\u89c6\u9891\u548c\u97f3\u9891\u90fd\u9700\u8981\u4f7f\u7528\u8001\u7684\u7f16\u7801\u683c\u5f0f\u3002<\/p>\n<p>\u597d\u9ebb\u70e6\u3002<\/p>\n<p>\u7b97\u4e86\uff0c\u81f3\u5c11demo\u8dd1\u901a\u624d\u662f\u3002\u4e8e\u662f\u6211\u5c31\u627e\u4e86\u4e2a\u5728\u7ebf\u89c6\u9891\u8f6c\u7801\u7684\u7ad9\u70b9\uff0c\u628aMP4\u8f6c\u6210\u7684TS\u683c\u5f0f\u3002<\/p>\n<p>TS\u683c\u5f0f\u662f\u5f53\u5e74DVD\u64ad\u653e\u7684\u89c6\u9891\u683c\u5f0f\uff0c\u6211\u5927\u5b66\u90a3\u4f1a\u513f\u8fd8\u662f\u5149\u76d8\u5e74\u4ee3\uff0c\u5f88\u591a\u89c6\u9891\u90fd\u662f\u8fd9\u79cd\u683c\u5f0f\u3002<\/p>\n<p>\u7ed3\u679c\u8fd9\u56de\u62a5\u9519\u6ca1\u6709\u4e86\uff0c\u4f46\u662f\u753b\u9762\u662f\u9ed1\u7684\uff0c\u5c31\u50cf\u65e0\u8fb9\u65e0\u9645\u7684\u5b87\u5b99\uff0c\u9ed1\u4e0d\u6e9c\u79cb\u7684\uff0c\u6ca1\u6709\u58f0\u97f3\u4e5f\u6ca1\u6709\u753b\u9762\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202104\/black.png\" width=\"436\" height=\"226\" alt=\"\u9ed1\u8272\u6548\u679c\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u5751\u7239\u5462\uff0c\u8fd9\u662f\u3002<\/p>\n<p>\u770b\u6765\u7f16\u7801\u8981\u7cbe\u51c6\u7f16\u7801\uff0c\u4e0d\u80fd\u968f\u968f\u4fbf\u4fbf\u7f16\u7801\u3002<\/p>\n<p>\u9700\u8981ffmpeg\u51fa\u9a6c\u4e86\u3002<\/p>\n<pre>ffmpeg -<span class=\"hljs-selector-tag\">i<\/span> <span class=\"hljs-keyword\">in<\/span><span class=\"hljs-selector-class\">.mp4<\/span> -f mpegts -codec:v mpeg1video -codec:<span class=\"hljs-selector-tag\">a<\/span> mp2 -<span class=\"hljs-selector-tag\">b<\/span> <span class=\"hljs-number\">0<\/span> out.ts<\/pre>\n<p>\u5199\u4e86\u4e2a\u5728\u7ebf\u8f6c\u7801\u7684\u9875\u9762\u5de5\u5177\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/study\/202104\/2ts.php\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.zhangxinxu.com\/study\/202104\/2ts.php<\/a><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202104\/2ts-cut.png\" width=\"360\" height=\"349\" alt=\"\u5728\u7ebf\u8f6c\u7801\u793a\u610f\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u8f6c\u4e86\u4e0b\uff0c\u6210\u529f\u751f\u6210\u7684TS\u6587\u4ef6\uff0c\u7136\u800c\u8fd0\u884c\u540e\u3002<\/p>\n<p>\u9ed8\u8ba4\u753b\u9762\u51fa\u6765\u4e86\uff0c\u70b9\u51fb\u70b9\u51fb\u540e\u5e76\u6ca1\u6709\u64ad\u653e\uff0c\u4e5f\u6ca1\u6709\u51fa\u9519\uff0c\u5751\u7239\u554a+1.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202104\/2021-04-23_152552.png\" width=\"353\" height=\"661\" alt=\"\u753b\u9762\u9759\u6b62\u622a\u56fe\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u800c\u4e14\u6587\u4ef6\u4f53\u79ef\u4ece1M\u591a\u5230\u4e865M\u591a\uff0c\u5938\u5f20\u4e86\u5440\uff0c\u5144\u5f1f\u3002<\/p>\n<p>\u6362\u6210\u5b98\u65b9\u4e0b\u8f7d\u7684TS\u6587\u4ef6\u662f\u53ef\u4ee5\u7684\u3002<\/p>\n<p>\u6ca1\u6cd5\u73a9\uff0c\u653e\u5f03\u4e86\uff0c\u8f6c\u6218\u4e0b\u4e00\u4e2a\u76ee\u6807\uff0cBroadway\u3002<\/p>\n<h3>\u4e8c\u3001\u5173\u4e8eBroadway<\/h3>\n<p>\u9879\u76ee\u5730\u5740\u662f\uff1a<a href=\"https:\/\/github.com\/mbebenita\/Broadway\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/github.com\/mbebenita\/Broadway<\/a>&nbsp;<\/p>\n<p>\u5171\u67092.4K\u7684star\u6570\u91cf\uff0c\u770b\u8d77\u6765\u662f\u4e2a\u9760\u8c31\u9879\u76ee\u3002<\/p>\n<p>\u8fd9\u4e2a\u9879\u76ee\u662f\u5b9e\u73b0\u4f7f\u7528JavaScript\u5bf9H.264\u89c6\u9891\u683c\u5f0f\u89e3\u7801\u7684\uff0c\u7136\u540e\u5728web\u4e0a\u64ad\u653e\u3002<\/p>\n<p>H.264\u53ef\u4ee5\u5728\u76f8\u540c\u7684\u5e26\u5bbd\u4e0b\u63d0\u4f9b\u66f4\u52a0\u4f18\u79c0\u7684\u56fe\u8c61\u8d28\u91cf\u3002\u901a\u8fc7\u8be5\u6807\u51c6\uff0c\u5728\u540c\u7b49\u56fe\u8c61\u8d28\u91cf\u4e0b\u7684\u538b\u7f29\u6548\u7387\u6bd4\u4ee5\u524d\u7684\u6807\u51c6\uff08MPEG2\uff09\u63d0\u9ad8\u4e862\u500d\u5de6\u53f3\u3002<\/p>\n<p>\u8fd9\u91cc\u6709\u5b98\u65b9\u63d0\u4f9b\u7684demo\uff1a<\/p>\n<p><a href=\"http:\/\/mbebenita.github.io\/Broadway\/foxDemo.html\" target=\"_blank\" rel=\"noreferrer noopener\">http:\/\/mbebenita.github.io\/Broadway\/foxDemo.html<\/a><br \/>\n<a href=\"http:\/\/mbebenita.github.io\/Broadway\/storyDemo.html\" target=\"_blank\" rel=\"noreferrer noopener\">http:\/\/mbebenita.github.io\/Broadway\/storyDemo.html<\/a><br \/>\n<a href=\"http:\/\/mbebenita.github.io\/Broadway\/treeDemo.html\" target=\"_blank\" rel=\"noreferrer noopener\">http:\/\/mbebenita.github.io\/Broadway\/treeDemo.html<\/a><\/p>\n<p>\u4f7f\u7528\u4e5f\u6bd4\u8f83\u7b80\u5355\u3002<\/p>\n<p>\u5982\u4e0b\u6240\u793aHTML\uff1a<\/p>\n<pre><span>&lt;<span>div<\/span> <span><span class=\"hljs-attribute\">class<\/span><\/span>=<span><span class=\"hljs-string\">\"broadway\"<\/span><\/span> <span><span class=\"hljs-attribute\">src<\/span><\/span>=<span><span class=\"hljs-string\">\".\/fox.mp4\"<\/span> <\/span><span><span class=\"hljs-attribute\">workers<\/span><\/span>=<span><span class=\"hljs-string\">\"false\"<\/span><\/span> <span><span class=\"hljs-attribute\">render<\/span><\/span>=<span><span class=\"hljs-string\">\"true\"<\/span><\/span> <span><span class=\"hljs-attribute\">webgl<\/span><\/span>=<span><span class=\"hljs-string\">\"auto\"<\/span><\/span>&gt;<\/span><span>&lt;\/<span>div<\/span>&gt;<\/span><\/pre>\n<p><span class=\"hidden\">\/\/zxx: \u5982\u679c\u4f60\u770b\u5230\u8fd9\u6bb5\u6587\u5b57\uff0c\u8bf4\u660e\u4f60\u73b0\u5728\u8bbf\u95ee\u662f\u4f53\u9a8c\u7cdf\u7cd5\u7684\u5783\u573e\u76d7\u7248\u7f51\u7ad9\uff0c\u4f60\u53ef\u4ee5\u8bbf\u95ee\u539f\u6587\u83b7\u5f97\u5f88\u597d\u7684\u4f53\u9a8c\uff1ahttps:\/\/www.zhangxinxu.com\/wordpress\/?p=9925\uff08\u4f5c\u8005\u5f20\u946b\u65ed\uff09<\/span><\/p>\n<p>\u5982\u4e0b\u6240\u793aJS\uff1a<\/p>\n<pre><span><span class=\"hljs-tag\">&lt;<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\"> <\/span><span><span class=\"hljs-tag\"><span class=\"hljs-attr\">src<\/span><\/span><\/span><span class=\"hljs-tag\">=<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-string\">\".\/Player\/Decoder.js\"<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span><span><span class=\"hljs-tag\">&lt;\/<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span>\r\n<span><span class=\"hljs-tag\">&lt;<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\"> <\/span><span><span class=\"hljs-tag\"><span class=\"hljs-attr\">src<\/span><\/span><\/span><span class=\"hljs-tag\">=<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-string\">\".\/Player\/YUVCanvas.js\"<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span><span><span class=\"hljs-tag\">&lt;\/<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span>\r\n<span><span class=\"hljs-tag\">&lt;<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\"> <\/span><span><span class=\"hljs-tag\"><span class=\"hljs-attr\">src<\/span><\/span><\/span><span class=\"hljs-tag\">=<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-string\">\".\/Player\/Player.js\"<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span><span><span class=\"hljs-tag\">&lt;\/<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span>    \r\n<span><span class=\"hljs-tag\">&lt;<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\"> <\/span><span><span class=\"hljs-tag\"><span class=\"hljs-attr\">src<\/span><\/span><\/span><span class=\"hljs-tag\">=<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-string\">\".\/Player\/stream.js\"<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span><span><span class=\"hljs-tag\">&lt;\/<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span>    \r\n<span><span class=\"hljs-tag\">&lt;<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\"> <\/span><span><span class=\"hljs-tag\"><span class=\"hljs-attr\">src<\/span><\/span><\/span><span class=\"hljs-tag\">=<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-string\">\".\/Player\/mp4.js\"<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span><span><span class=\"hljs-tag\">&lt;\/<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span>\r\n<span><span class=\"hljs-tag\">&lt;<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span><span><span class=\"javascript\">\r\n<\/span><span><span class=\"javascript\"><span class=\"hljs-keyword\">var<\/span><\/span><\/span><span class=\"javascript\"> node = <\/span><span><span class=\"javascript\"><span class=\"hljs-built_in\">document<\/span><\/span><\/span><span class=\"javascript\">.querySelector(<\/span><span><span class=\"javascript\"><span class=\"hljs-string\">'div.broadway'<\/span><\/span><\/span><span class=\"javascript\">);\r\n<\/span><span><span class=\"javascript\"><span class=\"hljs-keyword\">var<\/span><\/span><\/span><span class=\"javascript\"> broadway = <\/span><span><span class=\"javascript\"><span class=\"hljs-keyword\">new<\/span><\/span><\/span><span class=\"javascript\"> Broadway(node);\r\n <\/span><span><span class=\"javascript\"><span class=\"hljs-comment\">\/\/ broadway.play();<\/span><\/span><\/span><span class=\"javascript\">\r\n<\/span><\/span><span><span class=\"hljs-tag\">&lt;\/<\/span><span><span class=\"hljs-tag\"><span class=\"hljs-name\">script<\/span><\/span><\/span><span class=\"hljs-tag\">&gt;<\/span><\/span><\/pre>\n<p>\u7136\u540e\u5c31\u53ef\u4ee5\u64ad\u653e\u4e86\uff0c\u8fd9\u662f\u5b98\u65b9\u89c6\u9891\u64ad\u653e\u6548\u679c\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202104\/2021-04-23_155006.jpg\" width=\"480\" height=\"285\" alt=\"\u5b98\u65b9mp4\u64ad\u653e\u622a\u56fe\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u8d76\u5feb\u81ea\u5df1\u4f7f\u7528MP4\u89c6\u9891\u6d4b\u8bd5\u4e0b\uff0c\u7ed3\u679c\u2014\u2014<\/p>\n<p>\u753b\u9762\u662f\u9ed1\u7684\uff0c\u5c31\u50cf\u65e0\u8fb9\u65e0\u9645\u7684\u5b87\u5b99\uff0c\u9ed1\u4e0d\u6e9c\u79cb\u7684\uff0c\u6ca1\u6709\u58f0\u97f3\u4e5f\u6ca1\u6709\u753b\u9762\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202104\/black.png\" width=\"436\" height=\"226\" alt=\"\u9ed1\u8272\u6548\u679c\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u5751\u7239\u5462\uff0c\u8fd9\u662f\u3002<\/p>\n<p>\u540c\u6837\u7684\u4ee3\u7801\uff0c\u6362\u6210\u5b98\u65b9\u63d0\u4f9b\u7684MP4\u89c6\u9891\u662f\u53ef\u4ee5\u64ad\u653e\u7684\u3002<\/p>\n<p>\u770b\u6765\u5fc5\u987b\u8981\u7cbe\u51c6\u7684MP4\u7f16\u7801\uff0c\u518d\u6b21\u6709\u8bf7ffmpeg\u51fa\u9a6c\uff0c\u4e0b\u9762\u662f\u5b98\u65b9\u63d0\u4f9b\u7684\u7f16\u7801\u6307\u4ee4\u3002<\/p>\n<pre>ffmpeg -y -i sourceFile -r <span class=\"hljs-number\">30000<\/span>\/<span class=\"hljs-number\">1001<\/span> -b:a <span class=\"hljs-number\">2<\/span>M -bt <span class=\"hljs-number\">4<\/span>M -vcodec libx264 -pass <span class=\"hljs-number\">1<\/span> -coder <span class=\"hljs-number\">0<\/span> -bf <span class=\"hljs-number\">0<\/span> -flags -loop -wpredp <span class=\"hljs-number\">0<\/span> -an targetFile.mp4<\/pre>\n<p>\u597d\u5427\uff0c\u6211\u518d\u5199\u4e00\u4e2a\u9488\u5bf9 Broadway \u7684\u5728\u7ebf\u8f6c\u7801\u5de5\u5177\uff0c\u5e0c\u671b\u8fd9\u6b21\u4e0d\u8981\u5931\u671b\u3002<\/p>\n<p>OK\uff0c\u5f04\u597d\u4e86\uff0c\u4f7f\u7528ffmpeg\u751f\u6210\u7684mp4\u89c6\u9891\u8bd5\u4e86\u4e0b\uff0c\u7ed3\u679c\u63d0\u793a function signature mismatch\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202104\/2021-04-23_175912.png\" width=\"730\" height=\"329\" alt=\"\u4e00\u5806\u62a5\u9519\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u6211\u53ef\u80fd\u77e5\u9053\u4e3a\u4f55\u4e0a\u9762\u6240\u6709\u81ea\u5df1\u89c6\u9891\u6709\u95ee\u9898\u4e86\uff0c\u591a\u534a\u662f\u539f\u59cb\u7684MP4\u89c6\u9891\u53ef\u80fd\u6709\u95ee\u9898\u3002<\/p>\n<p>\u4e8e\u662f\u6211\u6362\u4e00\u4e2a\u4ece\u624b\u673a\u5bfc\u51fa\u7684\u89c6\u9891\u8bd5\u8bd5\uff0c\u5174\u81f4\u52c3\u52c3\u91cd\u65b0\u4e00\u8bd5\uff0c\u7ed3\u679c\u8fd8\u662f\u540c\u6837\u9519\u8bef\u3002\u5f53\u573a\u77f3\u5316\u4e86\uff0c\u8bf4\u660e\u53ef\u80fd\u4e0d\u662f\u89c6\u9891\u95ee\u9898\uff0c\u800c\u662f\u4e0a\u9762ffmpeg\u8f6cmp4\u7684\u95ee\u9898\u3002<\/p>\n<p>\u53c8\u4ed4\u7ec6\u770b\u4e86\u4e0b\uff0c\u4e0a\u9762\u7684\u4e0d\u662f\u8f6c\u7801\u7528\u7684\uff0c\u539f\u6765\u8f6c\u7801\u8981\u4f7f\u7528\u9879\u76ee\u63d0\u4f9b\u7684python\u2026\u2026\u5417\uff1f\u4e0d\u786e\u5b9a\uff0c\u800c\u4e14\u89c6\u9891\u8981\u5168\u90e8load\u5b8c\u6bd5\u624d\u80fd\u64ad\u653e\uff0c\u8fd9\u4e2a\u9879\u76ee\u5b9e\u5728\u5c31\u662f\u4e2a\u5927\u5751\uff0c\u529d\u5927\u5bb6\u8fdc\u79bb\u4e4b\u3002<\/p>\n<p>\u540e\u7eed\uff0cJSmpeg\u8fd9\u4e2a\u9879\u76ee\u4e5f\u4f7f\u7528\u624b\u673a\u5bfc\u51fa\u89c6\u9891\u8f6c\u7801\u4e86\u4e0b\uff0c\u540c\u6837\u662f\u53ea\u6709\u7b2c\u4e00\u5e27\u753b\u9762\uff0c\u70b9\u51fb\u6839\u672c\u5c31\u4e0d\u64ad\u653e\u3002<\/p>\n<p>\u8fd9\u4e24\u4e2a\u9879\u76ee\u90fd\u662f\u5dee\u8bc4\u3002<\/p>\n<p>\u4e0a\u624b\u592a\u96be\u4e86\uff0c\u6d6a\u8d39\u4e86\u5927\u628a\u65f6\u95f4\u8fde\u4e2ademo\u90fd\u6ca1\u8dd1\u901a\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/emtion\/emoji\/1f44e.svg\" width=\"20\" height=\"20\" align=\"absmiddle\"> <img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/emtion\/emoji\/1f44e.svg\" width=\"20\" height=\"20\" align=\"absmiddle\"> <img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/emtion\/emoji\/1f44e.svg\" width=\"20\" height=\"20\" align=\"absmiddle\"><\/p>\n<p>\u8bf4\u5b9e\u8bdd\uff0c\u8fd8\u4e0d\u5982vap\u6709\u7528\u7684\uff0cvap\u968f\u4fbf\u5f04\u4e2aMP4\u90fd\u662f\u53ef\u4ee5\u64ad\u653e\u7684\u3002<\/p>\n<h3>\u4e09\u3001\u5176\u4ed6\u8865\u5145<\/h3>\n<p>\u67e5\u4e86\u4e9b\u8d44\u6599\u3002<\/p>\n<p>Broadway \u53e3\u7891\u4f3c\u4e4e\u5e76\u4e0d\u592a\u597d\uff0c\u9879\u76ee\u4e5f\u597d\u591a\u5e74\u6ca1\u66f4\u65b0\u4e86\u3002<\/p>\n<p>JSmpeg\u7b97\u662fH5\u76f4\u64ad\u4e00\u4e2a\u6bd4\u8f83\u6210\u719f\uff0c\u517c\u5bb9\u6027\u4e0d\u9519\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<p>B\u7ad9\u6709\u4e2a\u540d\u4e3a <a href=\"https:\/\/github.com\/Bilibili\/ijkplayer\" rel=\"noopener\" target=\"_blank\">ijkplayer<\/a> \u7684\u9879\u76ee\uff0ciOS\u548cAndroid\u4e0b\u64ad\u653e\u5668\uff0c\u5f88\u591a\u4eba\u5173\u6ce8\uff0c\u6211\u662f\u4e13\u6ce8\u4e8eWeb\uff0c\u4e0d\u9002\u5408\u6211\u3002<\/p>\n<p><a href=\"https:\/\/github.com\/videojs\/video.js\" rel=\"noopener\" target=\"_blank\">video.js\u9879\u76ee<\/a>\u6709\u4f7f\u7528Media Source Extensions\u5b9e\u73b0\uff0c\u4e0d\u77e5\u9053\u5728Android H5\u4e0b\u8868\u73b0\u5982\u4f55\uff0c\u4e0b\u6b21\u53ef\u4ee5\u5f00\u7bb1\u6d4b\u8bd5\u4e86\u3002<\/p>\n<p>\u4e5f\u6b22\u8fce\u5927\u5bb6\u63d0\u4f9b\u53e6\u5916\u7684Javascript\u89c6\u9891\u89e3\u7801\u9879\u76ee\uff0c\u6211\u6765\u4f53\u9a8c\u6d4b\u8bc4\u4e0b\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/emtion\/emoji\/2764.svg\" width=\"20\" height=\"20\" align=\"absmiddle\"><\/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=9925\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=9925<\/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\/202104\/ningmeng-cover.png\" width=\"160\" height=\"101\" alt=\"\u67e0\u6aac\u5360\u4f4d\u56fe\" class=\"alignright size-medium\" loading=\"lazy\" \/><\/p>\n<p>H5\u76f4\u64ad\uff0cAndroid\u89c6\u9891\u64ad\u653e\u5c42\u7ea7\uff0c\u5185\u7f6e\u64ad\u653e\u5668\u7b49\u95ee\u9898\uff0c\u53ef\u4ee5\u770b\u770b\u672c\u6587\u4ecb\u7ecd\u7684\u4e24\u4e2aJS\u9879\u76ee\uff0cJSMpeg\u548cBroadway\uff0c\u6216\u8bb8\u4f1a\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[180],"tags":[1752,1751,1387,1753,1254,236,1749,1750],"_links":{"self":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/9925"}],"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=9925"}],"version-history":[{"count":0,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/9925\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/media?parent=9925"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/categories?post=9925"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/tags?post=9925"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}