{"id":16943,"date":"2017-01-13T13:49:04","date_gmt":"2017-01-13T18:49:04","guid":{"rendered":"http:\/\/mjtsai.com\/blog\/?p=16943"},"modified":"2017-01-23T14:20:36","modified_gmt":"2017-01-23T19:20:36","slug":"safari-cant-play-new-4k-youtube-videos","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2017\/01\/13\/safari-cant-play-new-4k-youtube-videos\/","title":{"rendered":"Safari Can&rsquo;t Play New 4K YouTube Videos"},"content":{"rendered":"<p><a href=\"http:\/\/appleinsider.com\/articles\/17\/01\/12\/safari-not-able-to-play-new-4k-videos-from-youtube-homepage-likely-due-to-vp9-shift\">Mike Wuerthele<\/a> (via <a href=\"https:\/\/twitter.com\/rosyna\/status\/819686838172430337\">Rosyna Keller<\/a>):<\/p>\n<blockquote cite=\"http:\/\/appleinsider.com\/articles\/17\/01\/12\/safari-not-able-to-play-new-4k-videos-from-youtube-homepage-likely-due-to-vp9-shift\"><p>The shift appears to have taken place on Dec. 6, according to a Reddit thread <a href=\"https:\/\/www.reddit.com\/r\/apple\/comments\/5ixweg\/since_when_there_is_no_4k_option_for_youtube_in\/\">delving into the issue<\/a>. Google has been pushing the open and royalty-free VP9 codec as an alternative to the paid H.265 spec since 2014, but has never said that it would stop offering 4K video on the YouTube site in other formats, like the Apple-preferred H.264.<\/p>\n<p>Videos uploaded to the service prior to Dec. 6 in 4K resolution can still play back in full 4K resolution on Safari from the YouTube homepage. Additionally, Mac users utilizing Chrome still have the ability to play back new videos in 4K, as Safari is the only holdout among the major browsers that doesn&rsquo;t support the codec.<\/p><\/blockquote>\n<p>Update (2017-01-23): <a href=\"http:\/\/robservatory.com\/safari-and-the-youtube-4k-video-problem\/\">Rob Griffiths<\/a>:<\/p>\n<blockquote cite=\"http:\/\/robservatory.com\/safari-and-the-youtube-4k-video-problem\/\">\n<p>Google seems to now be using the open and royalty-free <a href=\"http:\/\/www.webmproject.org\/vp9\/\">VP9 codec<\/a> for 4K videos viewed on its YouTube site, but reverts to the <a href=\"https:\/\/en.wikipedia.org\/wiki\/H.264\/MPEG-4_AVC\">H264 codec<\/a> when those same videos are embedded on other sites.<\/p>\n<p>[&#8230;]<\/p>\n<p>I installed a bunch of browsers (some of which I&rsquo;d never heard of before), and tested each to see which supported VP9 and which did not.<\/p>\n<\/blockquote>","protected":false},"excerpt":{"rendered":"<p>Mike Wuerthele (via Rosyna Keller): The shift appears to have taken place on Dec. 6, according to a Reddit thread delving into the issue. Google has been pushing the open and royalty-free VP9 codec as an alternative to the paid H.265 spec since 2014, but has never said that it would stop offering 4K video [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"apple_news_api_created_at":"","apple_news_api_id":"","apple_news_api_modified_at":"","apple_news_api_revision":"","apple_news_api_share_url":"","apple_news_coverimage":0,"apple_news_coverimage_caption":"","apple_news_is_hidden":false,"apple_news_is_paid":false,"apple_news_is_preview":false,"apple_news_is_sponsored":false,"apple_news_maturity_rating":"","apple_news_metadata":"\"\"","apple_news_pullquote":"","apple_news_pullquote_position":"","apple_news_slug":"","apple_news_sections":"\"\"","apple_news_suppress_video_url":false,"apple_news_use_image_component":false,"footnotes":""},"categories":[2],"tags":[357,31,1380,30,1381,103,97,96,555],"class_list":["post-16943","post","type-post","status-publish","format-standard","hentry","category-technology","tag-compression","tag-ios","tag-ios-10","tag-mac","tag-macos-10-12","tag-safari","tag-video","tag-web","tag-youtube"],"apple_news_notices":[],"_links":{"self":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/16943","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/comments?post=16943"}],"version-history":[{"count":3,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/16943\/revisions"}],"predecessor-version":[{"id":16991,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/16943\/revisions\/16991"}],"wp:attachment":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/media?parent=16943"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/categories?post=16943"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/tags?post=16943"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}