{"id":6407,"date":"2016-10-11T21:42:45","date_gmt":"2016-10-11T12:42:45","guid":{"rendered":"https:\/\/www.taruki.com\/wp\/?p=6407"},"modified":"2016-10-11T21:46:54","modified_gmt":"2016-10-11T12:46:54","slug":"ffmpeg%e3%81%a7intel%e3%81%aegpu%e3%82%92va-api%e3%82%92%e4%bd%bf%e3%81%a3%e3%81%a6h264%e3%82%a8%e3%83%b3%e3%82%b3%e3%83%bc%e3%83%89%e3%81%97%e3%81%9f%e3%83%a1%e3%83%a2","status":"publish","type":"post","link":"https:\/\/www.taruki.com\/wp\/?p=6407","title":{"rendered":"ffmpeg\u3067Intel\u306eGPU\u3092VA-API\u3092\u4f7f\u3063\u3066h264\u30a8\u30f3\u30b3\u30fc\u30c9\u3057\u305f\u30e1\u30e2"},"content":{"rendered":"<p>ArchLinux\u3067\u3001\u30bf\u30a4\u30c8\u30eb\u306e\u64cd\u4f5c\u3092\u884c\u3063\u305f\u6642\u306e\u30e1\u30e2\u3067\u3059\u3002<\/p>\n<p>\u307e\u305a\u306f\u3001\u5fc5\u8981\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3068DRI\u30c7\u30d0\u30a4\u30b9\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u30a2\u30af\u30bb\u30b9\u6a29\u4ed8\u4e0e<br \/>\n<PRE><br \/>\n# pacman -S ffmpeg libva libvdpau vdpauinfo libva-intel-driver<br \/>\n# usermod -aG video [\u30e6\u30fc\u30b6\u30fc\u540d]<br \/>\n<\/PRE><\/p>\n<p>\u3042\u3068\u306fffmpeg\u306b\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u4ed8\u3051\u3066\u5b9f\u884c<br \/>\n<PRE><br \/>\n$ ffmpeg -y -vaapi_device \/dev\/dri\/renderD128 -hwaccel vaapi \\<br \/>\n  -hwaccel_output_format vaapi -i in.mkv \\<br \/>\n  -vf &#8216;format=nv12|vaapi,hwupload&#8217; \\<br \/>\n  -c:v h264_vaapi -b 8M  -g 50 \\<br \/>\n  -qcomp 0.7 -qmin 10 -qmax 51 -qdiff 4 -subq 7 \\<br \/>\n  -me_range 16 -i_qfactor 0.714286 -acodec copy \\<br \/>\n  out.mp4<br \/>\n<\/PRE><br \/>\nCPU\u4f7f\u7528\u7387\u304cCPU\u30a8\u30f3\u30b3\u30fc\u30c9\u306b\u6bd4\u3079\u3066\u307b\u307c0\u306b\u306a\u308a\u51e6\u7406\u6642\u9593\u3082\u518d\u751f\u6642\u9593\u306e0.9\u500d\u304b\u30894.5\u500d\u7a0b\u5ea6\u306b\u30b9\u30d4\u30fc\u30c9\u30a2\u30c3\u30d7(\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u306fNFS\u306eIO)\u306b\u306a\u3063\u305f\u3002<br \/>\n\u8a66\u3057\u306btmpfs\u4e0a\u3067\u5b9f\u884c\u3057\u3066\u307f\u305f\u3089\u3001\u51e6\u7406\u6642\u9593\u306f8\u500d\u306b\u5927\u5e45\u30a2\u30c3\u30d7\u3002vmstat\u3084nmon\u3067\u898b\u308b\u3068GPU\u306e\u51e6\u7406\u5f85\u3061\u306fIOWait\u3068\u3057\u3066\u8868\u793a\u3055\u308c\u308b\u307f\u305f\u3044\u3067\u3059\u3002<br \/>\n\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306f\u3001\u30d3\u30c3\u30c8\u30ec\u30fc\u30c8\u304c8Mbps\u306a\u306e\u3067\u5358\u7d14\u8a08\u7b97\u30671\u6642\u9593\u30673.6GB\u3001\u97f3\u58f0\u3082\u542b\u3081\u308b\u30684GB\u3061\u3087\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ArchLinux\u3067\u3001\u30bf\u30a4\u30c8\u30eb\u306e\u64cd\u4f5c\u3092\u884c\u3063\u305f\u6642\u306e\u30e1\u30e2\u3067\u3059\u3002 \u307e\u305a\u306f\u3001\u5fc5\u8981\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3068DRI\u30c7\u30d0\u30a4\u30b9\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u30a2\u30af\u30bb\u30b9\u6a29\u4ed8\u4e0e # pacman -S ffmpeg libva libvdpau vdpau [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","footnotes":""},"categories":[24],"tags":[57,67,49,68],"class_list":["post-6407","post","type-post","status-publish","format-standard","hentry","category-pc","tag-archlinux","tag-ffmpeg","tag-linux","tag-vaapi"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.taruki.com\/wp\/index.php?rest_route=\/wp\/v2\/posts\/6407","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.taruki.com\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.taruki.com\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.taruki.com\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.taruki.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6407"}],"version-history":[{"count":0,"href":"https:\/\/www.taruki.com\/wp\/index.php?rest_route=\/wp\/v2\/posts\/6407\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.taruki.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6407"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.taruki.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6407"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.taruki.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6407"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}