{"id":7528,"date":"2013-06-17T10:05:22","date_gmt":"2013-06-17T15:05:22","guid":{"rendered":"http:\/\/mjtsai.com\/blog\/?p=7528"},"modified":"2013-06-17T10:05:23","modified_gmt":"2013-06-17T15:05:23","slug":"av-foundation-and-the-void","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2013\/06\/17\/av-foundation-and-the-void\/","title":{"rendered":"AV Foundation and the Void"},"content":{"rendered":"<p><a href=\"http:\/\/www.subfurther.com\/blog\/2013\/06\/15\/av-foundation-and-the-void\/\">Chris Adamson<\/a>:<\/p>\n<blockquote cite=\"http:\/\/www.subfurther.com\/blog\/2013\/06\/15\/av-foundation-and-the-void\/\"><p>This surprised me, so I asked a colleague who talks about AV Foundation at conferences if I was mistaken, and he agreed that <em>there doesn&rsquo;t seem to be a way to save an <code>AVMutableComposition<\/code>.<\/em> Which in turn means that if you&rsquo;re writing a video editor, the composition object is only useful to you during the life of the app, and you need some other means of saving the set of edits you&rsquo;ve made, and re-creating a new composition from this data on a future launch.<\/p><\/blockquote>\n<p>He gives a bunch of examples of cool features in the old QuickTime APIs that aren&rsquo;t (yet?) available in AV Foundation.<\/p>","protected":false},"excerpt":{"rendered":"<p>Chris Adamson: This surprised me, so I asked a colleague who talks about AV Foundation at conferences if I was mistaken, and he agreed that there doesn&rsquo;t seem to be a way to save an AVMutableComposition. Which in turn means that if you&rsquo;re writing a video editor, the composition object is only useful to you [&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":[273,69,31,30,71,271],"class_list":["post-7528","post","type-post","status-publish","format-standard","hentry","category-technology","tag-avfoundation","tag-cocoa","tag-ios","tag-mac","tag-programming","tag-quicktime"],"apple_news_notices":[],"_links":{"self":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/7528","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=7528"}],"version-history":[{"count":1,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/7528\/revisions"}],"predecessor-version":[{"id":7529,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/7528\/revisions\/7529"}],"wp:attachment":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/media?parent=7528"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/categories?post=7528"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/tags?post=7528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}