{"id":19,"date":"2008-10-17T14:31:48","date_gmt":"2008-10-17T20:31:48","guid":{"rendered":"http:\/\/www.crccheck.com\/blog\/?p=19"},"modified":"2008-10-17T14:31:48","modified_gmt":"2008-10-17T20:31:48","slug":"working-with-10bit-422","status":"publish","type":"post","link":"https:\/\/www.crccheck.com\/blog\/working-with-10bit-422\/","title":{"rendered":"Working with 10bit 4:2:2 Quicktimes"},"content":{"rendered":"<p>So I finally got around to doing some compression tests. My source was a 1280&#215;720 23.98fps 10bit 4:2:2 &#8220;uncompressed&#8221; quicktime. That is a typical file that comes across my desk. I wanted to see what compression I should set my Final Cut Pro timeline to. At first, I opened the quicktime in Quicktime Player and exported to a variety of codecs. But when I opened all of the files, I noticed that they were all darker than they should have been. That indicated to me that Quicktime Player had done some sort of colorspace conversion. So I redid the same test from inside Final Cut Pro. Sequence Settings were set to the same as the source video.<\/p>\n<p>For the test, I used these codecs:<\/p>\n<ul>\n<li>None<\/li>\n<li>Animation (100%)<\/li>\n<li>PNG<\/li>\n<li>Apple Intermediate Codec<\/li>\n<li>MJPEG-a<\/li>\n<li>MJPEG-b<\/li>\n<li>HDV<\/li>\n<li>DVCPRO HD<\/li>\n<li>Prores<\/li>\n<li>Prores (hq)<\/li>\n<li>4:2:2 8-bit<\/li>\n<li>4:2:2 10-bit<\/li>\n<\/ul>\n<h2>Results<\/h2>\n<dl id=\"attachment_21\" class=\"wp-caption aligncenter\" style=\"width: 510px;\">\n<dt class=\"wp-caption-dt\"><a href=\"http:\/\/www.crccheck.com\/blog\/wp-content\/uploads\/2008\/10\/codec-compare.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-21 aligncenter\" title=\"codec-compare\" src=\"http:\/\/www.crccheck.com\/blog\/wp-content\/uploads\/2008\/10\/codec-compare.png\" alt=\"bar graph\" width=\"500\" height=\"254\" srcset=\"https:\/\/www.crccheck.com\/blog\/wp-content\/uploads\/2008\/10\/codec-compare.png 645w, https:\/\/www.crccheck.com\/blog\/wp-content\/uploads\/2008\/10\/codec-compare-300x152.png 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/dt>\n<\/dl>\n<p>So I noticed that None, Animation, PNG, Apple Intermediate Codec, and MJPEG went through a colorspace conversion. So I won&#8217;t be using them again.<\/p>\n<p>HDV and DVCPRO HD were slightly fuzzier than the original, but also smaller than the remaining formats. DVCPRO HD also underwent a slight tonal change in image quality. DVCPRO HD also has poor cross-platform support, and both of these formats have restrictions on their frame size.<\/p>\n<p>Prores lived up to its name, and was as fast to compress as the 4:2:2 &#8220;uncompressed&#8221; formats, while also yielding files over 75% smaller, with little perceptual quality loss. They also had the benefit of not causing FCP to re-render the timeline.<\/p>\n<p>&lt;needs more pics&gt;<\/p>\n<h2>Conclusion<\/h2>\n<p>I&#8217;ll have to re-run this test with a simple filter applied to the image. I&#8217;ll probably add 8 pixels of black to the bottom or something. I think that 4:2:2 10-bit won the fps race because Final Cut Pro just copied the data instead of having to recompress as it did with all the other formats. I also haven&#8217;t figured out why Prores HQ was faster than Prores.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>So I finally got around to doing some compression tests. My source was a 1280&#215;720 23.98fps 10bit 4:2:2 &#8220;uncompressed&#8221; quicktime. That is a typical file that comes across my desk. I wanted to see what compression I should set my Final Cut Pro timeline to. At first, I opened the quicktime in Quicktime Player and&hellip;<\/p>\n <a href=\"https:\/\/www.crccheck.com\/blog\/working-with-10bit-422\/\" title=\"Working with 10bit 4:2:2 Quicktimes\" class=\"entry-more-link\"><span>Read More<\/span> <span class=\"screen-reader-text\">Working with 10bit 4:2:2 Quicktimes<\/span><\/a>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"Layout":"","footnotes":""},"categories":[10,5],"tags":[],"class_list":["entry","author-admin","post-19","post","type-post","status-publish","format-standard","category-film","category-drafts"],"_links":{"self":[{"href":"https:\/\/www.crccheck.com\/blog\/wp-json\/wp\/v2\/posts\/19","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.crccheck.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.crccheck.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.crccheck.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.crccheck.com\/blog\/wp-json\/wp\/v2\/comments?post=19"}],"version-history":[{"count":2,"href":"https:\/\/www.crccheck.com\/blog\/wp-json\/wp\/v2\/posts\/19\/revisions"}],"predecessor-version":[{"id":22,"href":"https:\/\/www.crccheck.com\/blog\/wp-json\/wp\/v2\/posts\/19\/revisions\/22"}],"wp:attachment":[{"href":"https:\/\/www.crccheck.com\/blog\/wp-json\/wp\/v2\/media?parent=19"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.crccheck.com\/blog\/wp-json\/wp\/v2\/categories?post=19"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.crccheck.com\/blog\/wp-json\/wp\/v2\/tags?post=19"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}