{"id":785,"date":"2018-03-23T13:57:06","date_gmt":"2018-03-23T17:57:06","guid":{"rendered":"http:\/\/main.jmah.net\/?p=785"},"modified":"2021-05-09T13:28:03","modified_gmt":"2021-05-09T17:28:03","slug":"replacing-an-audio-stream-using-ffmpeg","status":"publish","type":"post","link":"https:\/\/main.jmah.net\/?p=785","title":{"rendered":"Replacing an Audio Stream using FFMPEG"},"content":{"rendered":"<p>This is another example of using FFMPEG to manipulate video and audio files. In this case, one would like to replace the second audio stream in a video file by another audio file.<\/p>\n<p><a href=\"http:\/\/main.jmah.net\/?attachment_id=786\" rel=\"attachment wp-att-786\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-786\" src=\"http:\/\/main.jmah.net\/wp-content\/uploads\/2018\/03\/FFMPEG-Usage.png\" alt=\"\" width=\"599\" height=\"416\" srcset=\"https:\/\/main.jmah.net\/wp-content\/uploads\/2018\/03\/FFMPEG-Usage.png 599w, https:\/\/main.jmah.net\/wp-content\/uploads\/2018\/03\/FFMPEG-Usage-300x208.png 300w\" sizes=\"auto, (max-width: 599px) 100vw, 599px\" \/><\/a><\/p>\n<p>Here is the command you may want to try:<\/p>\n<p><strong>ffmpeg -i video.mkv -i audio.mp3 -map 0:v -map 0:a:0 -map 1:a -codec copy output.mkv<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This is another example of using FFMPEG to manipulate video and audio files. In this case, one would like to replace the second audio stream in a video file by another audio file. Here is the command you may want &hellip; <a href=\"https:\/\/main.jmah.net\/?p=785\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,7],"tags":[],"class_list":["post-785","post","type-post","status-publish","format-standard","hentry","category-ffmpeg","category-research-information-technology"],"_links":{"self":[{"href":"https:\/\/main.jmah.net\/index.php?rest_route=\/wp\/v2\/posts\/785","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/main.jmah.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/main.jmah.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/main.jmah.net\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/main.jmah.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=785"}],"version-history":[{"count":2,"href":"https:\/\/main.jmah.net\/index.php?rest_route=\/wp\/v2\/posts\/785\/revisions"}],"predecessor-version":[{"id":788,"href":"https:\/\/main.jmah.net\/index.php?rest_route=\/wp\/v2\/posts\/785\/revisions\/788"}],"wp:attachment":[{"href":"https:\/\/main.jmah.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=785"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/main.jmah.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=785"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/main.jmah.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=785"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}