{"id":35840,"date":"2019-10-31T22:06:53","date_gmt":"2019-10-31T19:06:53","guid":{"rendered":"https:\/\/prohoster.info\/blog\/vypusk-kodirovshhika-video-svt-av1-0-6-razvivaemogo-kompaniej-intel\/"},"modified":"2019-10-31T22:06:53","modified_gmt":"2019-10-31T19:06:53","slug":"vypusk-kodirovshhika-video-svt-av1-0-6-razvivaemogo-kompaniej-intel","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/vypusk-kodirovshhika-video-svt-av1-0-6-razvivaemogo-kompaniej-intel","title":{"rendered":"Sortie de l'encodeur vid\u00e9o SVT-AV1 0.6, d\u00e9velopp\u00e9 par Intel","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

La soci\u00e9t\u00e9 Intel a publi\u00e9<\/a><\/noindex> lance la biblioth\u00e8que SVT-AV1 0.6<\/a><\/noindex> (Scalable Video Technology AV1), qui fournit un encodeur et un d\u00e9codeur alternatifs pour le format de codage vid\u00e9o AV1, utilisant les capacit\u00e9s de parall\u00e9lisation mat\u00e9riel pr\u00e9sents dans les CPU Intel modernes. L'objectif principal de SVT-AV1 est d'atteindre un niveau de performance adapt\u00e9 au transcodage vid\u00e9o \u00e0 la vol\u00e9e et \u00e0 l'utilisation dans des services de vid\u00e9o \u00e0 la demande (VOD). Le code est d\u00e9velopp\u00e9 dans le cadre du projet OpenVisualCloud, qui d\u00e9veloppe \u00e9galement des encodeurs. SVT-HEVC<\/a><\/noindex> et SVT-VP9<\/a><\/noindex>et est distribu\u00e9<\/a><\/noindex> sous licence BSD. <\/p>\n

Pour utiliser SVT-AV1, un processeur Intel Core de cinqui\u00e8me g\u00e9n\u00e9ration (Intel Xeon E5-v4 et des CPU plus r\u00e9cents) est requis. Pour encoder des flux AV1 \u00e0 10 bits en qualit\u00e9 4K, 48 Go de RAM sont n\u00e9cessaires, 1080p \u2014 16 Go, 720p \u2014 8 Go, 480p \u2014 4 Go. En raison de la complexit\u00e9 des algorithmes utilis\u00e9s dans AV1, le codage de ce format n\u00e9cessite consid\u00e9rablement plus de ressources que les autres formats, ce qui emp\u00eache l'utilisation de l'encodeur AV1 standard pour le re-codage en temps r\u00e9el. Par exemple, l'encodeur standard du projet AV1
\nconsid\u00e9rablement plus de temps pour l'encodage (la vitesse d'encodage de libaom est en retard par rapport \u00e0 libvpx-vp9 de plusieurs centaines de fois, et par rapport \u00e0 x264 de milliers de fois).<\/a><\/noindex> requiert 5721, 5869 et 658 fois plus de calculs par rapport aux encodeurs x264 (profil \u00ab main \u00bb), x264 (profil \u00ab high \u00bb), et libvpx-vp9. <\/p>\n

Les changements dans la nouvelle version de SVT-AV1 incluent l'ajout d'une impl\u00e9mentation initiale du d\u00e9codeur (auparavant, seul l'encodage \u00e9tait pris en charge) et le support du liaisonnement statique de la biblioth\u00e8que. De nouvelles optimisations SIMD et le support de d\u00e9cimation<\/a><\/noindex> avec l'utilisation de filtres 2x2, support de la segmentation, possibilit\u00e9 adaptative scaling QP adaptatif<\/a><\/noindex> et la transformation adaptative des blocs INTRA.<\/p>\n

<\/a><\/noindex><\/p>\n

Source : opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Intel \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0432\u044b\u043f\u0443\u0441\u043a \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 SVT-AV1 0.6 (Scalable Video Technology AV1), \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0439 \u0430\u043b\u044c\u0442\u0435\u0440\u043d\u0430\u0442\u0438\u0432\u043d\u044b\u0435 \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0449\u0438\u043a \u0438 \u0434\u0435\u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0449\u0438\u043a \u0434\u043b\u044f \u0444\u043e\u0440\u043c\u0430\u0442\u0430 \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432\u0438\u0434\u0435\u043e AV1, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0437\u0430\u0434\u0435\u0439\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u044b \u043f\u0440\u0438\u0441\u0443\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0435 \u0432 \u0441\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0445 CPU Intel \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430 \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0433\u043e \u0440\u0430\u0441\u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u0438\u0432\u0430\u043d\u0438\u044f \u0432\u044b\u0447\u0438\u0441\u043b\u0435\u043d\u0438\u0439. \u041e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0437\u0430\u0434\u0430\u0447\u0435\u0439 SVT-AV1 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0434\u043e\u0441\u0442\u0438\u0436\u0435\u043d\u0438\u0435 \u0443\u0440\u043e\u0432\u043d\u044f \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438, \u043f\u0440\u0438\u0433\u043e\u0434\u043d\u043e\u0433\u043e \u0434\u043b\u044f \u043f\u0435\u0440\u0435\u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432\u0438\u0434\u0435\u043e \u043d\u0430 \u043b\u0435\u0442\u0443 \u0438 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0432 \u0441\u0435\u0440\u0432\u0438\u0441\u0430\u0445, \u043e\u0442\u0434\u0430\u044e\u0449\u0438\u0445 \u0432\u0438\u0434\u0435\u043e \u043f\u043e \u0437\u0430\u043f\u0440\u043e\u0441\u0443 (VOD). […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-35840","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Version de l'encodeur vid\u00e9o SVT-AV1 0.6, d\u00e9velopp\u00e9 par Intel | ProHoster","description":"La soci\u00e9t\u00e9 Intel a publi\u00e9 la version de la 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