{"id":6611,"date":"2017-08-07T23:43:53","date_gmt":"2017-08-07T14:43:53","guid":{"rendered":"http:\/\/umezawa.dyndns.info\/wordpress\/?p=6611"},"modified":"2017-08-09T02:08:10","modified_gmt":"2017-08-08T17:08:10","slug":"how-to-create-video-clips-used-for-my-future-codec-benchmarking-part-2","status":"publish","type":"post","link":"http:\/\/umezawa.dyndns.info\/wordpress\/?p=6611","title":{"rendered":"How to create video clips used for my future codec benchmarking (part 2)"},"content":{"rendered":"<p>(This article is English translation of <a href=\"http:\/\/umezawa.dyndns.info\/wordpress\/?p=6602\">Japanese version<\/a>)<\/p>\n<p>I found that <a href=\"http:\/\/umezawa.dyndns.info\/wordpress\/?p=6573\">the video clips that I generated<\/a> are not compressed very much. The compression ratio is 1.06 in case of AMV4\/DR2. I think it is not good and have to search other clips.<\/p>\n<p><!--more--><\/p>\n<p>I decided to use <a href=\"https:\/\/www.youtube.com\/watch?v=R6MlUcmOul8\">Tears of Steel<\/a>, the author of MagicYUV suggested. (<a href=\"https:\/\/media.xiph.org\/tearsofsteel\/tearsofsteel-4k-tiff\/\">here<\/a>)<\/p>\n<p>I use frame No. from 11777 to 12076, the scene that a picket soldier fires machine gun to enemy robots.<\/p>\n<blockquote>\n<pre>\r\nffmpeg -pattern_type glob -i 'graded_edit_*.tif' -r 25 -pix_fmt rgb48be -vcodec rawvideo tearsofsteel_4k-master-b48r.mov\r\nffmpeg -i tearsofsteel_4k-master-b48r.mov -pix_fmt rgb24 -vcodec rawvideo tearsofsteel_4k-tmp-rgb24.mov\r\nffmpeg -i tearsofsteel_4k-master-b48r.mov -vcodec v308 tearsofsteel_4k-tmp-yuv444.mov\r\nffmpeg -i tearsofsteel_4k-master-b48r.mov -pix_fmt yuyv422 -vcodec rawvideo tearsofsteel_4k-tmp-yuv422.mov\r\nffmpeg -i tearsofsteel_4k-master-b48r.mov -vcodec yuv4 tearsofsteel_4k-tmp-yuv420.mov\r\nffmpeg -i tearsofsteel_4k-master-b48r.mov -vcodec copy tearsofsteel_4k-tmp-rgb48.mov\r\nffmpeg -i tearsofsteel_4k-master-b48r.mov -vcodec v210 tearsofsteel_4k-tmp-yuv422-10bpc.mov\r\n<\/pre>\n<\/blockquote>\n<p>The resolution of 4K version of Tears of Steel is 4096&#215;1714. The number of pixels is slightly smaller than UHD (3840&#215;2160).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>(This article is English translation of Japanese version) I found that the video clips that I generated are no [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28,27],"tags":[],"class_list":["post-6611","post","type-post","status-publish","format-standard","hentry","category-ut-video-codec-suite","category-technology"],"_links":{"self":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/6611","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6611"}],"version-history":[{"count":3,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/6611\/revisions"}],"predecessor-version":[{"id":6617,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/6611\/revisions\/6617"}],"wp:attachment":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6611"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6611"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6611"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}