{"id":115662,"date":"2026-10-12T22:57:01","date_gmt":"2026-10-12T14:57:01","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/115662.html"},"modified":"2026-10-12T22:57:01","modified_gmt":"2026-10-12T14:57:01","slug":"%e6%b5%8f%e8%a7%88%e5%99%a8%e8%a7%86%e9%a2%91%e5%af%bc%e5%87%ba%e5%a4%aa%e6%85%a2%e6%80%8e%e4%b9%88%e4%bc%98%e5%8c%96%ef%bc%9f%e4%b8%80%e6%ac%a1-webcodecs-%e5%ae%9e%e8%b7%b5%ef%bc%9a8-%e5%88%86","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/115662.html","title":{"rendered":"\u6d4f\u89c8\u5668\u89c6\u9891\u5bfc\u51fa\u592a\u6162\u600e\u4e48\u4f18\u5316\uff1f\u4e00\u6b21 WebCodecs \u5b9e\u8df5\uff1a8 \u5206\u949f\u89c6\u9891\u8017\u65f6\u964d\u4f4e 31%"},"content":{"rendered":"<p>\u505a\u6d4f\u89c8\u5668\u89c6\u9891\u7f16\u8f91\u5668&#xff0c;\u77ed\u89c6\u9891\u8dd1\u5f97\u987a\u7545&#xff0c;\u5e76\u4e0d\u4ee3\u8868\u957f\u89c6\u9891\u4e5f\u80fd\u4fdd\u6301\u540c\u6837\u7684\u4f53\u9a8c\u3002<\/p>\n<p>\u7d20\u6750\u589e\u957f\u5230\u4e03\u516b\u5206\u949f&#xff0c;\u6216\u8005\u6362\u6210\u9ad8\u7801\u7387\u76f8\u673a\u89c6\u9891\u540e&#xff0c;\u4e00\u4e9b\u95ee\u9898\u624d\u9010\u6e10\u660e\u663e&#xff1a;<\/p>\n<ul>\n<li>\u64ad\u653e\u5934\u5728\u79fb\u52a8&#xff0c;\u9884\u89c8\u753b\u9762\u5374\u6682\u65f6\u505c\u4f4f\u3002<\/li>\n<li>\u62d6\u52a8\u64ad\u653e\u5934\u540e&#xff0c;\u9700\u8981\u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4\u624d\u80fd\u7ee7\u7eed\u64ad\u653e\u3002<\/li>\n<li>\u5bfc\u51fa\u524d\u7684\u97f3\u9891\u51c6\u5907\u8017\u65f6\u589e\u52a0\u3002<\/li>\n<li>\u89c6\u9891\u5bfc\u51fa\u8fc7\u7a0b\u4e2d&#xff0c;\u89e3\u7801\u3001\u5408\u6210\u548c\u7f16\u7801\u4e4b\u95f4\u5b58\u5728\u7b49\u5f85\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u6b21\u6211\u4eec\u9488\u5bf9\u5f00\u6e90\u9879\u76ee Timeline Studio \u505a\u4e86\u6027\u80fd\u4f18\u5316&#xff0c;\u5e76\u53d6\u51fa\u7b2c\u4e00\u8f6e\u4f18\u5316\u4e4b\u524d\u7684\u4ee3\u7801\u8fdb\u884c\u5bf9\u7167\u6d4b\u8bd5\u3002<\/p>\n<p>\u7ed3\u679c\u662f&#xff1a;8 \u5206\u949f\u89c6\u9891\u5e73\u5747\u5bfc\u51fa\u603b\u8017\u65f6\u4ece\u7ea6 3 \u5206 12 \u79d2\u964d\u5230\u7ea6 2 \u5206 12 \u79d2&#xff0c;\u51cf\u5c11\u7ea6 60 \u79d2&#xff0c;\u964d\u5e45\u7ea6 31.3%\u3002<\/p>\n<p>\u6e90\u7801&#xff1a;Timeline Studio GitHub \u4ed3\u5e93 \u4f53\u9a8c&#xff1a;\u5728\u7ebf\u6253\u5f00\u89c6\u9891\u7f16\u8f91\u5668<\/p>\n<h3>\u4e00\u3001\u5148\u660e\u786e\u6d4b\u8bd5\u53e3\u5f84<\/h3>\n<p>\u6027\u80fd\u6307\u6807\u9700\u8981\u8bf4\u660e\u8f93\u5165\u3001\u8f93\u51fa\u548c\u8ba1\u65f6\u8303\u56f4&#xff0c;\u5426\u5219\u4e0d\u540c\u6d4b\u8bd5\u4e4b\u95f4\u5f88\u96be\u6bd4\u8f83\u3002<\/p>\n<p>\u672c\u6b21\u4f7f\u7528\u540c\u4e00\u53f0\u7535\u8111\u3001\u540c\u4e00\u6bb5\u7ea6 8 \u5206\u949f\u7684\u5408\u6210\u538b\u6d4b\u7d20\u6750&#xff0c;\u8bbe\u7f6e\u5982\u4e0b&#xff1a;<\/p>\n<table>\n<tr>\u9879\u76ee\u53c2\u6570<\/tr>\n<tbody>\n<tr>\n<td>\u8f93\u5165\u89c6\u9891\u7f16\u7801<\/td>\n<td>H.264<\/td>\n<\/tr>\n<tr>\n<td>\u8f93\u5165\u5206\u8fa8\u7387<\/td>\n<td>1440 \u00d7 1080<\/td>\n<\/tr>\n<tr>\n<td>\u8f93\u5165\u5e27\u7387<\/td>\n<td>\u7ea6 29.88 fps<\/td>\n<\/tr>\n<tr>\n<td>\u8f93\u5165\u97f3\u9891<\/td>\n<td>AAC&#xff0c;44.1 kHz&#xff0c;\u7acb\u4f53\u58f0<\/td>\n<\/tr>\n<tr>\n<td>\u5bfc\u51fa\u89c6\u9891\u7f16\u7801<\/td>\n<td>H.264<\/td>\n<\/tr>\n<tr>\n<td>\u5bfc\u51fa\u5206\u8fa8\u7387<\/td>\n<td>1440 \u00d7 1080<\/td>\n<\/tr>\n<tr>\n<td>\u5bfc\u51fa\u5e27\u7387<\/td>\n<td>30 fps<\/td>\n<\/tr>\n<tr>\n<td>\u5bfc\u51fa\u89c6\u9891\u7801\u7387<\/td>\n<td>10 Mbps<\/td>\n<\/tr>\n<tr>\n<td>\u5bfc\u51fa\u97f3\u9891<\/td>\n<td>AAC&#xff0c;192 kbps<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u8ba1\u65f6\u4ece\u97f3\u9891\u51c6\u5907\u5f00\u59cb&#xff0c;\u5230\u5bfc\u51fa\u5b8c\u6210\u7ed3\u675f&#xff0c;\u5305\u542b\u97f3\u9891\u51c6\u5907\u548c\u89c6\u9891\u5bfc\u51fa&#xff0c;\u4e0d\u5305\u542b\u7d20\u6750\u5bfc\u5165\u53ca\u65f6\u95f4\u7ebf\u7f29\u7565\u56fe\u51c6\u5907\u3002<\/p>\n<p>\u6d4b\u8bd5\u6309\u201c\u65e7\u7248 \u2192 \u65b0\u7248 \u2192 \u65b0\u7248 \u2192 \u65e7\u7248\u201d\u7684\u987a\u5e8f\u6267\u884c&#xff0c;\u6bcf\u8f6e\u542f\u52a8\u65b0\u7684\u6d4f\u89c8\u5668\u8fdb\u7a0b\u3002<\/p>\n<table>\n<tr>\u7248\u672c\u7b2c\u4e00\u6b21\u7b2c\u4e8c\u6b21\u5e73\u5747\u603b\u8017\u65f6<\/tr>\n<tbody>\n<tr>\n<td>\u7b2c\u4e00\u8f6e\u4f18\u5316\u524d<\/td>\n<td align=\"right\">203.7 \u79d2<\/td>\n<td align=\"right\">180.4 \u79d2<\/td>\n<td align=\"right\">192.0 \u79d2<\/td>\n<\/tr>\n<tr>\n<td>\u5f53\u524d\u7248\u672c<\/td>\n<td align=\"right\">141.6 \u79d2<\/td>\n<td align=\"right\">122.3 \u79d2<\/td>\n<td align=\"right\">131.9 \u79d2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5206\u9636\u6bb5\u770b&#xff1a;<\/p>\n<table>\n<tr>\u9636\u6bb5\u4f18\u5316\u524d\u5e73\u5747\u4f18\u5316\u540e\u5e73\u5747<\/tr>\n<tbody>\n<tr>\n<td>\u97f3\u9891\u51c6\u5907<\/td>\n<td align=\"right\">9.3 \u79d2<\/td>\n<td align=\"right\">0.9 \u79d2<\/td>\n<\/tr>\n<tr>\n<td>\u89c6\u9891\u5bfc\u51fa\u9636\u6bb5<\/td>\n<td align=\"right\">182.7 \u79d2<\/td>\n<td align=\"right\">131.0 \u79d2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u6309\u539f\u59cb\u6570\u636e\u8ba1\u7b97&#xff0c;\u603b\u8017\u65f6\u964d\u4f4e 31.3%&#xff0c;\u5e73\u5747\u8282\u7701 60.1 \u79d2\u3002<\/p>\n<p>\u6bcf\u4e2a\u7248\u672c\u5404\u6d4b\u8bd5\u4e24\u6b21&#xff0c;\u7ed3\u679c\u4ecd\u5b58\u5728\u8fd0\u884c\u6ce2\u52a8\u3002\u8fd9\u91cc\u4f7f\u7528\u7684\u662f\u5408\u6210\u7d20\u6750&#xff0c;\u6307\u6807\u4e0d\u80fd\u76f4\u63a5\u4ee3\u8868\u6240\u6709\u76f8\u673a\u5b9e\u62cd Vlog\u3001\u8bbe\u5907\u548c\u6548\u679c\u7ec4\u5408\u3002<\/p>\n<h3>\u4e8c\u3001\u4f18\u5316\u70b9\u4e00&#xff1a;\u907f\u514d\u97f3\u9891\u51c6\u5907\u9636\u6bb5\u5148\u89e3\u7801\u6574\u6bb5 WAV<\/h3>\n<p>\u65e7\u7248\u63d0\u53d6\u89c6\u9891\u5185\u5d4c\u97f3\u9891\u65f6&#xff0c;\u9700\u8981\u5148\u901a\u8fc7 FFmpeg \u89e3\u7801\u4e3a WAV&#xff0c;\u518d\u8fdb\u884c\u540e\u7eed\u5904\u7406\u3002<\/p>\n<p>\u5bf9\u4e8e\u957f\u89c6\u9891&#xff0c;\u8fd9\u6761\u8def\u5f84\u4f1a\u5e26\u6765\u51e0\u9879\u6210\u672c&#xff1a;<\/p>\n<li>\u6574\u6bb5\u97f3\u9891\u89e3\u7801\u3002<\/li>\n<li>PCM \u4e2d\u95f4\u6570\u636e\u7684\u5185\u5b58\u5206\u914d\u3002<\/li>\n<li>\u4e2d\u95f4\u6587\u4ef6\u548c\u540e\u7eed\u6570\u636e\u5904\u7406\u3002<\/li>\n<p>\u5982\u679c\u6e90\u97f3\u8f68\u5df2\u7ecf\u662f AAC&#xff0c;\u53ef\u4ee5\u5728\u7b26\u5408\u6761\u4ef6\u65f6\u76f4\u63a5\u63d0\u53d6\u7f16\u7801\u5305\u5e76\u91cd\u65b0\u5c01\u88c5&#xff0c;\u51cf\u5c11\u51c6\u5907\u9636\u6bb5\u7684\u5de5\u4f5c\u3002<\/p>\n<p>\u5904\u7406\u6d41\u7a0b\u53ef\u4ee5\u6982\u62ec\u4e3a&#xff1a;<\/p>\n<p>\u65e7\u8def\u5f84&#xff1a;<br \/>\n\u89c6\u9891 \u2192 \u97f3\u9891\u89e3\u7801 \u2192 WAV\/PCM \u4e2d\u95f4\u6570\u636e \u2192 \u540e\u7eed\u5904\u7406<\/p>\n<p>\u65b0\u589e\u8def\u5f84&#xff1a;<br \/>\n\u89c6\u9891 \u2192 AAC \u7f16\u7801\u5305\u63d0\u53d6\u4e0e\u5c01\u88c5 \u2192 \u540e\u7eed\u5904\u7406<\/p>\n<p>\u6700\u7ec8\u8f93\u51fa\u97f3\u9891\u4ecd\u6309\u7167\u5bfc\u51fa\u8bbe\u7f6e\u7f16\u7801\u3002\u8fd9\u9879\u6539\u52a8\u51cf\u5c11\u7684\u662f\u524d\u7f6e\u51c6\u5907\u6210\u672c\u3002<\/p>\n<h4>\u4e0d\u80fd\u5ffd\u7565 AAC \u65f6\u95f4\u6233<\/h4>\n<p>\u7f16\u7801\u5305\u63d0\u53d6\u5e76\u975e\u53ea\u590d\u5236\u5b57\u8282\u3002<\/p>\n<p>AAC \u53ef\u80fd\u5305\u542b\u9884\u6eda\u548c\u8d1f\u65f6\u95f4\u6233\u3002\u5982\u679c\u76f4\u63a5\u4e22\u5f03\u8fd9\u4e9b\u4fe1\u606f&#xff0c;\u53ef\u80fd\u9020\u6210\u97f3\u753b\u504f\u79fb\u3002\u56e0\u6b64\u5b9e\u73b0\u4e2d\u9700\u8981\u4fdd\u7559\u5e76\u8865\u507f\u6e90\u65f6\u95f4\u504f\u79fb&#xff0c;\u540c\u65f6\u533a\u5206\u5b58\u50a8\u65f6\u957f\u4e0e\u7247\u6bb5\u903b\u8f91\u65f6\u957f\u3002<\/p>\n<p>\u4e0d\u7b26\u5408\u6761\u4ef6\u7684\u97f3\u9891\u683c\u5f0f\u7ee7\u7eed\u4f7f\u7528\u539f\u6709\u8def\u5f84\u3002<\/p>\n<p>\u672c\u6b21\u6d4b\u8bd5\u4e2d&#xff0c;\u97f3\u9891\u51c6\u5907\u5e73\u5747\u8017\u65f6\u4ece 9.3 \u79d2\u964d\u5230 0.9 \u79d2\u3002<\/p>\n<h3>\u4e09\u3001\u4f18\u5316\u70b9\u4e8c&#xff1a;\u51cf\u5c11\u89c6\u9891\u5e27\u7684\u4e2d\u95f4\u8f6c\u6362<\/h3>\n<p>\u89c6\u9891\u5bfc\u51fa\u7684\u4e3b\u8981\u94fe\u8def\u662f&#xff1a;<\/p>\n<p>\u89e3\u7801 \u2192 \u753b\u9762\u5408\u6210 \u2192 \u7f16\u7801 \u2192 \u5c01\u88c5<\/p>\n<p>\u5982\u679c\u89e3\u7801\u5f97\u5230\u7684\u5e27\u5728\u8fdb\u5165\u6700\u7ec8\u5408\u6210\u5668\u4e4b\u524d&#xff0c;\u8fd8\u8981\u7ecf\u8fc7\u989d\u5916\u7684 Canvas \u6805\u683c\u5316&#xff0c;\u5c31\u4f1a\u589e\u52a0\u6bcf\u5e27\u7684\u5904\u7406\u6210\u672c\u3002<\/p>\n<p>\u5bf9\u4e8e 8 \u5206\u949f\u300130 fps \u7684\u8f93\u51fa&#xff0c;\u9700\u8981\u5904\u7406\u7ea6&#xff1a;<\/p>\n<p>8 \u00d7 60 \u00d7 30 &#061; 14,400 \u5e27<\/p>\n<p>\u5355\u5e27\u770b\u8d77\u6765\u4e0d\u5927\u7684\u91cd\u590d\u5f00\u9500&#xff0c;\u7d2f\u8ba1\u5230\u957f\u89c6\u9891\u4e0a\u5c31\u503c\u5f97\u68c0\u67e5\u3002<\/p>\n<p>\u65b0\u7248\u589e\u52a0\u4e86\u53d7\u6761\u4ef6\u7ea6\u675f\u7684\u76f4\u63a5\u5e27\u8def\u5f84&#xff1a;\u7b26\u5408\u6761\u4ef6\u65f6&#xff0c;\u5c06\u89e3\u7801\u5f97\u5230\u7684 VideoFrame 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