{"id":35,"date":"2011-10-12T18:09:45","date_gmt":"2011-10-12T18:09:45","guid":{"rendered":"https:\/\/blog.johnny-lin.com\/?p=35"},"modified":"2011-10-12T18:15:56","modified_gmt":"2011-10-12T18:15:56","slug":"making-a-screencast-video-using-ubuntu","status":"publish","type":"post","link":"https:\/\/blog.johnny-lin.com\/?p=35","title":{"rendered":"Making a Screencast Video Using Ubuntu"},"content":{"rendered":"<p>I recently made <a href=\"http:\/\/www.youtube.com\/watch?v=PMPghaPoJt8\">my first YouTube video<\/a> using my Dell Vostro V13 laptop running Ubuntu GNU\/Linux.  It wasn&#8217;t that hard to do, but I thought I&#8217;d just write a quick post describing what I did; I had to do a little sleuthing on the Internet to find out what settings to use in order to get it to work on YouTube.  <!--more--><\/p>\n<p>I created the animation and slides using LibreOffice Impress, the Powerpoint-like presentation program that is part of the open-source <a href=\"http:\/\/www.libreoffice.org\/\">LibreOffice<\/a> office productivity suite.  Powerpoint, or any other presentation program, would work just as well.<\/p>\n<p>I recorded the screencast using the application <a href=\"http:\/\/recordmydesktop.sourceforge.net\/about.php\">recordMyDesktop<\/a>.  RecordmyDesktop produces a <a href=\"http:\/\/en.wikipedia.org\/wiki\/Ogg\">.ogv<\/a> video file.  My laptop has a built-in camera and microphone, so I just had to make sure the microphone level was high enough to record my voice.  One thing I did find was that when I used the space bar to advance the slideshow, the clicking noise was also recorded.  By using an external mouse button instead, I was able to keep the clicking noise to a minimum.<\/p>\n<p>After recording the screencast, I edited it using the movie editor <a href=\"http:\/\/www.pitivi.org\/\">PiTiVi<\/a>.  I was satisfied with video and sound quality of most of my screencast, so the only thing I did was crop out portions at the beginning and end of the movie that had no meaningful video.<\/p>\n<p>The tricky part was exporting (i.e., &#8220;rendering&#8221; in PiTiVi lingo) the PiTiVi-edited video into a format the YouTube would accept.  Here are the settings I used (copied from <a href=\"http:\/\/ubuntuforums.org\/showthread.php?t=1504818\">this Ubuntu forums post<\/a>, written by the forum member <a href=\"http:\/\/ubuntuforums.org\/member.php?u=794609\">theSuperman<\/a>):<\/p>\n<ul>\n<li>Container: MP4Muxer [mp4mux]<\/li>\n<li>Audio Codec: Ffmpeg ALAC (Apple lossless Audio Encoder) encoder [ffenc_alac]<\/li>\n<li>Video Codec: Ffmpeg MPEG-4 part 2 encoder [ffenc_mpeg4]<\/li>\n<li>Video codec bit rate: 10300000<\/li>\n<\/ul>\n<p>I uploaded the resulting MP4 file to YouTube and, voila, Hollywood, here I come!  (One thing I didn&#8217;t know is that once you upload the video, you have to wait around 30 minutes for YouTube to do conversion of the video.  But that&#8217;s all automatically done on their end.)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I recently made my first YouTube video using my Dell Vostro V13 laptop running Ubuntu GNU\/Linux. It wasn&#8217;t that hard to do, but I thought I&#8217;d just write a quick post describing what I did; I had to do a little sleuthing on the Internet to find out what settings to use in order to [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-35","post","type-post","status-publish","format-standard","hentry","category-ubuntu"],"_links":{"self":[{"href":"https:\/\/blog.johnny-lin.com\/index.php?rest_route=\/wp\/v2\/posts\/35","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.johnny-lin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.johnny-lin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.johnny-lin.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.johnny-lin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=35"}],"version-history":[{"count":10,"href":"https:\/\/blog.johnny-lin.com\/index.php?rest_route=\/wp\/v2\/posts\/35\/revisions"}],"predecessor-version":[{"id":47,"href":"https:\/\/blog.johnny-lin.com\/index.php?rest_route=\/wp\/v2\/posts\/35\/revisions\/47"}],"wp:attachment":[{"href":"https:\/\/blog.johnny-lin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=35"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.johnny-lin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=35"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.johnny-lin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=35"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}