{"id":52492,"date":"2019-11-09T00:00:00","date_gmt":"2019-11-08T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/pervyj-ofitsialnyj-vypusk-rav1e-kodirovshhika-av1-na-yazyke-rust"},"modified":"2020-02-18T14:00:13","modified_gmt":"2020-02-18T11:00:13","slug":"pervyj-ofitsialnyj-vypusk-rav1e-kodirovshhika-av1-na-yazyke-rust","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/pervyj-ofitsialnyj-vypusk-rav1e-kodirovshhika-av1-na-yazyke-rust","title":{"rendered":"Premi\u00e8re version officielle de rav1e, l'encodeur AV1 \u00e9crit en Rust","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A eu lieu<\/a><\/noindex> premi\u00e8re version du nouvel encodeur vid\u00e9o haute performance AV1<\/a><\/noindex> \u2014 rav1e 0.1<\/a><\/noindex>, d\u00e9velopp\u00e9 en collaboration par les communaut\u00e9s Xiph et Mozilla. L'encodeur est \u00e9crit en Rust et se distingue de l'encodeur de r\u00e9f\u00e9rence libaom par une augmentation significative de la vitesse d'encodage et une attention accrue \u00e0 la s\u00e9curit\u00e9. Le code du projet est distribu\u00e9<\/a><\/noindex> sous licence BSD.<\/p>\n

Le format AV1 surpasse nettement x264 et libvpx-vp9 en termes de compression, mais en raison de la complexit\u00e9 croissante des algorithmes<\/a><\/noindex> n\u00e9cessite consid\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> L'encodeur rav1e offre 11 niveaux de performance, les plus \u00e9lev\u00e9s permettant d'atteindre une vitesse proche de l'encodage en temps r\u00e9el. L'encodeur est disponible \u00e0 la fois sous forme d'outil en ligne de commande et en tant que biblioth\u00e8que.
\nToutes les fonctionnalit\u00e9s principales d'AV1 sont prises en charge, y compris la prise en charge<\/p>\n

des images cod\u00e9es en interne et en externe (
\nintra-inter<\/a><\/noindex> et -images), des superblocs 64\u00d764, de la sous-\u00e9chantillonnage de couleur 4:2:0, 4:2:2 et 4:4:4, de l'encodage de profondeur de couleur sur 8, 10 et 12 bits, de la RDO (optimisation de la distorsion par rapport au d\u00e9bit), de divers modes de pr\u00e9diction des changements inter-image et de d\u00e9tection des transformations, de la gestion du d\u00e9bit et de la d\u00e9tection de coupure de sc\u00e8ne.<\/a><\/noindex>-cadres), superblocs 64×64, sous-\u00e9chantillonnage des couleurs 4:2:0, 4:2:2 et 4:4:4, codage de profondeur de couleur 8-, 10- et 12-bits, optimisation RDO (Rate-distortion optimization) des distorsions, diff\u00e9rents modes de pr\u00e9diction des changements inter-cadres et d\u00e9tection des transformations, gestion du d\u00e9bit et d\u00e9tection des coupures de sc\u00e8ne.<\/p>\n

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

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

\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u043f\u0435\u0440\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043d\u043e\u0432\u043e\u0433\u043e \u0432\u044b\u0441\u043e\u043a\u043e\u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u0430 \u0444\u043e\u0440\u043c\u0430\u0442\u0430 \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432\u0438\u0434\u0435\u043e AV1 — rav1e 0.1, \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u043d\u043e \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u043e\u0433\u043e \u0441\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u0430\u043c\u0438 Xiph \u0438 Mozilla. \u041a\u043e\u0434\u0438\u0440\u043e\u0432\u0449\u0438\u043a \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Rust \u0438 \u043e\u0442\u043b\u0438\u0447\u0430\u0435\u0442\u0441\u044f \u043e\u0442 \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u043e\u0433\u043e \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u0430 libaom \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u043c \u0443\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u0438\u0435\u043c \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u0438 \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0438 \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u043d\u044b\u043c \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u0435\u043c \u043a \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044e \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438. \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 BSD. \u0424\u043e\u0440\u043c\u0430\u0442 AV1 \u0437\u0430\u043c\u0435\u0442\u043d\u043e \u043e\u043f\u0435\u0440\u0435\u0436\u0430\u0435\u0442 x264 \u0438 libvpx-vp9 \u043f\u043e \u0443\u0440\u043e\u0432\u043d\u044e […]<\/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-52492","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\udd47Premi\u00e8re version officielle de rav1e, encodeur AV1 en Rust | ProHoster","description":"\ud83e\udd47Premi\u00e8re version officielle de rav1e, encodeur AV1 en Rust | 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