{"id":84049,"date":"2020-05-14T15:20:22","date_gmt":"2020-05-14T07:20:22","guid":{"rendered":"http:\/\/4563.org\/?p=84049"},"modified":"2020-05-14T15:20:22","modified_gmt":"2020-05-14T07:20:22","slug":"ffmpeg-%e5%89%8d-100-%e5%b8%a7%e4%b8%8d%e6%98%be%e7%a4%ba%e5%9b%be%e7%89%87%e6%b0%b4%e5%8d%b0%ef%bc%8c%e8%af%b7%e9%97%ae%e6%98%af%e4%bb%80%e4%b9%88%e6%83%85%e5%86%b5%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=84049","title":{"rendered":"ffmpeg \u524d 100 \u5e27\u4e0d\u663e\u793a\u56fe\u7247\u6c34\u5370\uff0c\u8bf7\u95ee\u662f\u4ec0\u4e48\u60c5\u51b5\uff1f"},"content":{"rendered":"<div>\n<div>\n<div>\n<h1>                  ffmpeg \u524d 100 \u5e27\u4e0d\u663e\u793a\u56fe\u7247\u6c34\u5370\uff0c\u8bf7\u95ee\u662f\u4ec0\u4e48\u60c5\u51b5\uff1f               <\/h1>\n<p> <\/p>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : ijrou <\/span>  <span><i><\/i> 1<\/span> <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div isfirst=\"1\"> <\/p>\n<p>\u4e0a\u547d\u4ee4\uff1a<\/p>\n<pre><code>ffmpeg\u00a0-i\u00a0input.mp4\u00a0-i\u00a0watermark.png\u00a0-filter_complex\u00a0\"overlay=x='if(eq(mod(n,100),0),100,x)':y='150'\"\u00a0\u00a0-c:a\u00a0copy\u00a0-y\u00a0output.mp4 <\/code><\/pre>\n<p>\u6309\u7406\u6765\u8bf4\uff0cn \u5982\u679c\u4e3a\u7b2c 50 \u5e27\uff0c\u90a3\u4e48 mod(50,100) \u4f59\u6570\u5e94\u8be5\u4e3a 50\uff0ceq(50,0)\u8fd4\u56de\u7684\u5e94\u8be5\u662f 0(false)\uff0c\u5373\uff1a\u4f1a\u6267\u884c x = x\uff0c\u4f46\u662f\u8fd9\u91cc\u7684 x \u662f\u4ec0\u4e48\u5462\uff1f NAN? \u8fd9\u4e2a\u8be5\u600e\u4e48\u6539\uff1f \u6c42\u5927\u795e~<\/p>\n<\/p><\/div>\n<div> <b>\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (<span>1<\/span>)        <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<ul>\n<li data-pid=\"1541693\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : wnpllrzodiac <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u6709\u610f\u601d\u7684\u9898\u76ee                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li>\n","protected":false},"excerpt":{"rendered":"<p>ffmpeg \u524d 100 \u5e27\u4e0d\u663e\u793a&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/84049"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=84049"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/84049\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=84049"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=84049"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=84049"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}