{"id":4594,"date":"2015-01-29T15:47:01","date_gmt":"2015-01-29T15:47:01","guid":{"rendered":"http:\/\/ubuntuhandbook.org\/?p=4594"},"modified":"2015-01-29T15:47:01","modified_gmt":"2015-01-29T15:47:01","slug":"selene-vp9-h265-support","status":"publish","type":"post","link":"https:\/\/ubuntuhandbook.org\/index.php\/2015\/01\/selene-vp9-h265-support\/","title":{"rendered":"Selene Media Converter Adds VP9 and H265\/HEVC Support"},"content":{"rendered":"<p><i>Selene, a free and open-source batch media converter, has recently reached ver 2.5 with VP9 and H265\/HEVC encoding support.<\/i><\/p>\n<p>For the new encoding supports, there are some points noted in the official release note:<\/p>\n<p><i>For VP9 encoding support using ffmpeg or avconv:<\/i><\/p>\n<ul>\n<li>VP9 encoder is very slow compared to VP8. Use the &#8216;speed&#8217; slider to adjust the encoding speed. Lower values will give better quality video at expense of encoding speed. Higher values will speed-up encoding at the expense of quality. You need to find a balance that you are comfortable with.<\/li>\n<li>The &#8216;constant quality&#8217; rate control method seems to be broken in the VP8\/VP9 encoder. Both ffmpeg and vpxenc tools ignore the &#8211;crf\/&#8211;cq-level parameter and produce bad quality video. So currently only &#8216;variable bitrate&#8217; mode is available in the application.<\/li>\n<li>Output format is WebM (*.webm). Other containers currently do not support VP8\/VP9 video formats.<\/li>\n<li>Ensure that the version of ffmpeg\/avconv on your system was compiled with VP8\/VP9 support. As of now, the version available in the Ubuntu repositories for 14.04 and above, have support for VP8\/VP9 encoding. You can verify this by running the command: &#8216;avconv -codecs | grep libvpx&#8217;<\/li>\n<\/ul>\n<div id=\"attachment_4595\" style=\"width: 590px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2015\/01\/selene-vp9-support.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4595\" src=\"https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2015\/01\/selene-vp9-support.jpg\" alt=\"Selene with VP9 Encoding support\" width=\"580\" height=\"366\" class=\"size-full wp-image-4595\" srcset=\"https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2015\/01\/selene-vp9-support.jpg 580w, https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2015\/01\/selene-vp9-support-300x189.jpg 300w\" sizes=\"auto, (max-width: 580px) 100vw, 580px\" \/><\/a><p id=\"caption-attachment-4595\" class=\"wp-caption-text\">Selene with VP9 Encoding support<\/p><\/div>\n<p><i>For H.265\/HEVC encoding support:<\/i><\/p>\n<ul>\n<li>x265 encoder is very slow compared to x264. Change the &#8216;preset&#8217; option to &#8216;fast&#8217; or &#8216;fastest&#8217; to speed-up the encoding at the expense of compression (output file size).<\/li>\n<li>Only MP4 container is supported for output. MKV output is not yet available since both &#8216;mkvmerge&#8217; and &#8216;ffmpeg&#8217; are yet to add support for muxing h265 streams.<\/li>\n<\/ul>\n<div id=\"attachment_4596\" style=\"width: 590px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2015\/01\/selene-h265-support.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4596\" src=\"https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2015\/01\/selene-h265-support.jpg\" alt=\"Selene with H265 encoding support\" width=\"580\" height=\"376\" class=\"size-full wp-image-4596\" srcset=\"https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2015\/01\/selene-h265-support.jpg 580w, https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2015\/01\/selene-h265-support-300x194.jpg 300w\" sizes=\"auto, (max-width: 580px) 100vw, 580px\" \/><\/a><p id=\"caption-attachment-4596\" class=\"wp-caption-text\">Selene with H265 encoding support<\/p><\/div>\n<h4>How to Install \/ Upgrade Selene in Ubuntu:<\/h4>\n<p>For Ubuntu 15.04, Ubuntu 14.10, Ubuntu 14.04, and Linux Mint 17\/17.1 users, the latest packages for this converter are available in the developer&#8217;s PPA.<\/p>\n<p>Open terminal from the Dash or by pressing Ctrl+Alt+T on keyboard. When it opens, run below commands one by one to add the PPA and install the software:<\/p>\n<pre style=\"border:none;\">sudo add-apt-repository ppa:teejee2008\/ppa\r\n\r\nsudo apt-get update\r\n\r\nsudo apt-get install selene<\/pre>\n<p>Or you can directly grab the .deb installer from the <a href=\"https:\/\/launchpad.net\/~teejee2008\/+archive\/ubuntu\/ppa\/+packages\" target=\"_blank\">ppa packages page<\/a>.<\/p>\n<p style=\"text-align:right;\">via: <a href=\"http:\/\/www.teejeetech.in\/2015\/01\/selene-v25-vp9-and-h265hevc-encoding.html\" target=\"_blank\">TeeJee Tech<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Selene, a free and open-source batch media converter, has recently reached ver 2.5 with VP9 and H265\/HEVC encoding support. For the new encoding supports, there are some points noted in the official release note: For VP9 encoding support using ffmpeg or avconv: VP9 encoder is very slow compared to VP8. Use the &#8216;speed&#8217; slider to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[860,677,1218],"class_list":["post-4594","post","type-post","status-publish","format-standard","hentry","category-howtos","tag-batch-converter","tag-media-converter","tag-selene"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/posts\/4594","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/comments?post=4594"}],"version-history":[{"count":0,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/posts\/4594\/revisions"}],"wp:attachment":[{"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/media?parent=4594"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/categories?post=4594"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/tags?post=4594"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}