{"id":113933,"date":"2024-02-28T12:25:58","date_gmt":"2024-02-28T10:25:58","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kod-podderzhki-kodeka-vp9-v-v4l2-dlya-chipov-hantro-i-rockchip-perepisan-na-rust"},"modified":"2024-02-28T12:25:58","modified_gmt":"2024-02-28T10:25:58","slug":"kod-podderzhki-kodeka-vp9-v-v4l2-dlya-chipov-hantro-i-rockchip-perepisan-na-rust","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/kod-podderzhki-kodeka-vp9-v-v4l2-dlya-chipov-hantro-i-rockchip-perepisan-na-rust","title":{"rendered":"Le code de support du codec VP9 dans V4L2 pour les puces Hantro et Rockchip a \u00e9t\u00e9 r\u00e9\u00e9crit en Rust","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Daniel Almeida, qui travaille sur le d\u00e9veloppement de codecs vid\u00e9o chez Collabora, a pr\u00e9sent\u00e9 aux d\u00e9veloppeurs du noyau Linux une nouvelle impl\u00e9mentation d'une couche pour l'utilisation des d\u00e9codeurs vid\u00e9o mat\u00e9riels au format VP9 dans le sous-syst\u00e8me V4L2, utilis\u00e9 pour organiser l'acc\u00e8s aux dispositifs de capture vid\u00e9o tels que les webcams et les tuners TV. Le code de la couche a \u00e9t\u00e9 compl\u00e8tement r\u00e9\u00e9crit en Rust et est con\u00e7u pour fonctionner avec les drivers rkvdec et hantro, fournissant un acc\u00e8s aux ressources mat\u00e9rielles d'acc\u00e9l\u00e9ration de d\u00e9codeurs vid\u00e9o disponibles dans les puces Rockchip et Hantro. <\/p>\n

Le code impl\u00e9mentant le support de VP9 pour v4l2 comprend environ 2000 lignes. Comme raison de la cr\u00e9ation d'une impl\u00e9mentation alternative en Rust, on cite le d\u00e9sir d'obtenir un niveau de protection suppl\u00e9mentaire gr\u00e2ce \u00e0 l'utilisation des outils offerts par Rust pour un travail m\u00e9moire s\u00fbr dans un code qui contient la mise en \u0153uvre d'algorithmes suffisamment complexes et est utilis\u00e9 pour traiter les donn\u00e9es provenant de l'espace utilisateur via l'interface V4L2. Bien que l'impl\u00e9mentation en Rust soit actuellement un prototype exp\u00e9rimental soumis \u00e0 discussion, les tests effectu\u00e9s avec le paquet Fluster, qui \u00e9value la conformit\u00e9 des d\u00e9codeurs aux sp\u00e9cifications de r\u00e9f\u00e9rence, ont montr\u00e9 des r\u00e9sultats identiques pour les versions en C et en Rust.
\n
Source : opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0414\u044d\u043d\u0438\u0435\u043b \u0410\u043b\u043c\u0435\u0439\u0434\u0430 (Daniel Almeida), \u0437\u0430\u043d\u0438\u043c\u0430\u044e\u0449\u0438\u0439\u0441\u044f \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435\u043c \u0432\u0438\u0434\u0435\u043e\u043a\u043e\u0434\u0435\u043a\u043e\u0432 \u0432 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Collabora, \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b \u0434\u043b\u044f \u043e\u0431\u0441\u0443\u0436\u0434\u0435\u043d\u0438\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u043c\u0438 \u044f\u0434\u0440\u0430 Linux \u043d\u043e\u0432\u0443\u044e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u043f\u0440\u043e\u0441\u043b\u043e\u0439\u043a\u0438 \u0434\u043b\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u044b\u0445 \u0434\u0435\u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u043e\u0432 \u0432\u0438\u0434\u0435\u043e \u0432 \u0444\u043e\u0440\u043c\u0430\u0442\u0435 VP9 \u0432 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0435 V4L2, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u0439 \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430\u043c \u0432\u0438\u0434\u0435\u043e\u0437\u0430\u0445\u0432\u0430\u0442\u0430, \u0442\u0430\u043a\u0438\u043c \u043a\u0430\u043a web-\u043a\u0430\u043c\u0435\u0440\u044b \u0438 TV-\u0442\u044e\u043d\u0435\u0440\u044b. \u041a\u043e\u0434 \u043f\u0440\u043e\u0441\u043b\u043e\u0439\u043a\u0438 \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u043f\u0435\u0440\u0435\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Rust \u0438 \u043e\u0440\u0438\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d \u043d\u0430 \u0440\u0430\u0431\u043e\u0442\u0443 \u0441 \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430\u043c\u0438 rkvdec […]<\/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-113933","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\udd47 Le code de support du codec VP9 dans V4L2 pour les puces Hantro et Rockchip a \u00e9t\u00e9 r\u00e9\u00e9crit en Rust | ProHoster","description":"Daniel Almeida, qui travaille sur le d\u00e9veloppement de codecs vid\u00e9o chez Collabora, a pr\u00e9sent\u00e9 aux d\u00e9veloppeurs du noyau Linux une nouvelle impl\u00e9mentation d'une couche pour l'utilisation des d\u00e9codeurs vid\u00e9o mat\u00e9riels.","canonical_url":"https:\/\/prohoster.info\/fr\/blog\/news\/kod-podderzhki-kodeka-vp9-v-v4l2-dlya-chipov-hantro-i-rockchip-perepisan-na-rust","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"fr_FR","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041a\u043e\u0434 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u043a\u043e\u0434\u0435\u043a\u0430 VP9 \u0432 V4L2 \u0434\u043b\u044f \u0447\u0438\u043f\u043e\u0432 Hantro \u0438 Rockchip \u043f\u0435\u0440\u0435\u043f\u0438\u0441\u0430\u043d \u043d\u0430 Rust | ProHoster","og:description":"\u0414\u044d\u043d\u0438\u0435\u043b \u0410\u043b\u043c\u0435\u0439\u0434\u0430 (Daniel Almeida), \u0437\u0430\u043d\u0438\u043c\u0430\u044e\u0449\u0438\u0439\u0441\u044f \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435\u043c \u0432\u0438\u0434\u0435\u043e\u043a\u043e\u0434\u0435\u043a\u043e\u0432 \u0432 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Collabora, \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b \u0434\u043b\u044f \u043e\u0431\u0441\u0443\u0436\u0434\u0435\u043d\u0438\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u043c\u0438 \u044f\u0434\u0440\u0430 Linux \u043d\u043e\u0432\u0443\u044e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u043f\u0440\u043e\u0441\u043b\u043e\u0439\u043a\u0438 \u0434\u043b\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f 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