{"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\/it\/blog\/novosti-interneta\/kod-podderzhki-kodeka-vp9-v-v4l2-dlya-chipov-hantro-i-rockchip-perepisan-na-rust","title":{"rendered":"Il codice di supporto del codec VP9 in V4L2 per i chip Hantro e Rockchip \u00e8 stato riscritto in Rust","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Daniel Almeida, che si occupa dello sviluppo dei codec video presso Collabora, ha presentato per la discussione degli sviluppatori del kernel Linux una nuova implementazione di un layer per utilizzare i decoder hardware video nel formato VP9 nel sottosistema V4L2, utilizzato per l'accesso a dispositivi di acquisizione video come webcam e TV tuner. Il codice del layer \u00e8 stato completamente riscritto in Rust ed \u00e8 progettato per lavorare con i driver rkvdec e hantro, che forniscono accesso alle risorse hardware per l\u2019accelerazione della decodifica video disponibili nei chip Rockchip e Hantro. <\/p>\n

Il codice per l'implementazione del supporto VP9 per v4l2 si compone di circa 2000 righe. Una delle ragioni per cui \u00e8 stata creata un'alternativa in Rust \u00e8 il desiderio di ottenere un ulteriore livello di protezione attraverso l'uso delle funzionalit\u00e0 di sicurezza della memoria fornite da Rust, in un codice che contiene algoritmi complessi e viene utilizzato per gestire i dati provenienti dallo spazio utente tramite l'interfaccia V4L2. Anche se l'implementazione in Rust ha attualmente lo status di prototipo sperimentale in discussione, durante i test condotti con il pacchetto Fluster, che valuta la conformit\u00e0 dei decodificatori alle specifiche di riferimento, le versioni in C e Rust hanno mostrato risultati identici.
\n
Fonte: 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-novosti-interneta"],"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\udd47Il codice di supporto per il codec VP9 in V4L2 per i chip Hantro e Rockchip \u00e8 stato riscritto in Rust | ProHoster","description":"Daniel Almeida, che si occupa dello sviluppo dei codec video in Collabora, ha presentato per la discussione agli sviluppatori del kernel Linux una nuova implementazione di un layer per l'utilizzo di decoder video hardware nel formato VP9 all'interno del sotto-sistema V4L2, utilizzato per l'accesso a dispositivi di acquisizione video come webcam e sintonizzatori TV. Il codice del layer \u00e8 stato completamente riscritto in Rust ed \u00e8 progettato per lavorare con i driver rkvdec.","canonical_url":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/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":"it_IT","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 \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","og:url":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/kod-podderzhki-kodeka-vp9-v-v4l2-dlya-chipov-hantro-i-rockchip-perepisan-na-rust","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2024-02-28T10:25:58+00:00","article:modified_time":"2024-02-28T10:25:58+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/posts\/113933","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/comments?post=113933"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/posts\/113933\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/media?parent=113933"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/categories?post=113933"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/tags?post=113933"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}