{"id":184097,"date":"2026-11-02T23:40:40","date_gmt":"2026-11-02T21:40:40","guid":{"rendered":"https:\/\/prohoster.info\/blog\/news\/vypusk-svt-av1-4-3-0-kodirovshhika-dlya-formata-video-av1"},"modified":"2026-11-02T23:40:47","modified_gmt":"2026-11-02T21:40:47","slug":"svt-av1-4-3-0-av1-video-encoder-released","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/svt-av1-4-3-0-av1-video-encoder-released","title":{"rendered":"Izdanje SVT-AV1 4.3.0, enkodera za AV1 video format","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Objavljen je izdanak biblioteke SVT-AV1 4.3.0 (Scalable Video Technology AV1) s implementacijama enkodera i dekodera formata video kodiranja AV1, za \u010dije ubrzanje se koriste prisutne u procesorima x86_64 i ARM pro\u0161irenja za hardversko paraleliziranje ra\u010dunanja. Projekt je stvoren od strane Intela u partnerstvu s Netflixom s ciljem postizanja razine performansi pogodnih za kodiranje videa u stvarnom vremenu i primjenu u uslugama koje isporu\u010duju video sadr\u017eaj na zahtjev (VOD). Trenutno se razvoj odvija pod okriljem saveza Open Media (AOMedia), koji nadgleda razvoj formata video kodiranja AV1. Projekt se prethodno razvijao unutar projekta OpenVisualCloud, koji tako\u0111er razvija enkodere SVT-HEVC i SVT-VP9. Kod se distribuira pod BSD licencom. <\/p>\n<p>SVT-AV1 mo\u017ee biti sastavljen za sustave temeljene na bilo kojim arhitekturama za koje postoji prevoditelj koji podr\u017eava C99 standard, ali se najbolje performanse posti\u017eu na sustavima x86_64, gdje se primjenjuju optimizacije u asembleru temeljenim na SIMD instrukcijama (po\u017eeljno je da CPU podr\u017eava AVX2, ali je minimalno dovoljno i SSE2). Potro\u0161nja memorije ovisi o broju procesorskih jezgri uklju\u010denih u kodiranje, reguliranih opcijom &#171;&#8212;lp&#187;. Zbog slo\u017eenosti algoritama kori\u0161tenih u AV1 formatu, kodiranje ovog formata zahtijeva zna\u010dajno vi\u0161e resursa nego drugi formati. <\/p>\n<p>Me\u0111u promjenama u novom izdanju SVT-AV1:<\/p>\n<ul>\n<li class=\"l\"> Optimizirani su kompromisi izme\u0111u kvalitete i brzine za sve prethodno definirane postavke, \u0161to je smanjilo optere\u0107enje na CPU za 5-8% uz zadr\u017eavanje istog nivoa kvalitete, a tako\u0111er je skratilo vreme kodiranja za 10-11% u vi\u0161enitnom re\u017eimu. Ubrzane su operacije isklju\u010denja neefikasnih re\u017eima kodiranja (MD &#8212; Odabir Re\u017eima), izra\u010dun vektora kretanja (MV &#8212; Vektor Kretanja) i parametara filtara tijekom kodiranja, izra\u010dunavanje veli\u010dine frekvencijskih koeficijenata, tra\u017eenje subpikselnih pomaka, kopiranje blokova i uklanjanje suvi\u0161ne detaljnosti pomo\u0107u RDOQ (Optimizirana Kvantizacija Na Temelju Stope i Izobli\u010denja) algoritma. U vi\u0161enitnom re\u017eimu, kako bi se u\u0161tedjeli resursi, algoritam za odre\u0111ivanje prikazivanja sadr\u017eaja ekrana sada se primjenjuje samo na I-okvire.\n<li class=\"l\"> Dodana je eksperimentalna opcija &#171;&#8212;fast-decode 3&#187; za ubrzanje dekodiranja stati\u010dnih slika.\n<li class=\"l\"> Dodana je opcija &#171;&#8212;fgs-table&#187;, koja uklju\u010duje podr\u0161ku za tablice zrnastosti (film grain), i API FILM_GRAIN_EVENT za postavljanje parametara zrnastosti u vezi s okvirima.\n<li class=\"l\"> Pove\u0107ana je brzina kodiranja bez gubitaka.\n<li class=\"l\"> U na\u010dinu kodiranja s niskim ka\u0161njenjem implementirano je paraleliziranje obrade blokova (tile).\n<li class=\"l\"> Dodana je opcija &#171;max_allowed_consecutive_frames_skips&#187; za pode\u0161avanje propu\u0161tanja okvira u re\u017eimu odr\u017eavanja konstantnog bit-rejta (CBR).\n<li class=\"l\"> Dodana je opcija &#171;max_hierarchical_levels&#187; za upravljanje skupom me\u0111uspremnika koji se primjenjuje prilikom promjene veli\u010dine grupa me\u0111ufilmova (mini-GOP &#8212; Grupa Slika).\n<li class=\"l\"> Dodana je opcija za izgradnju &#171;&#8212;mobile-build&#187; (u CMake &#8212; MOBILE_BUILD) za formiranje 8-bitne biblioteke za RTC, VOD i AVIF. Dodane su opcije CONFIG_ENABLE_* za onemogu\u0107avanje izgradnje neiskori\u0161tenih alata za kodiranje.\n<li class=\"l\"> Za x86 sustave implementirani su 8-bitni CDEF obrtnici na temelju AVX2 i SSE4.1 instrukcija, kao i 16-bitne direktne transforacije na temelju AVX2 i AVX-512 instrukcija. Dodan je optimizirani kod za me\u0111uframe predikciju, rad s paletama i transformacije uz pomo\u0107 SSE4.1 instrukcija. Optimizirani su obrtnici za kvantizaciju, kopiranje blokova, izra\u010dun distorzija i procjenu subpikselnih razlika.\n<li class=\"l\"> Za ARM sustave dodane su verzije obrtnika, ubrzane pomo\u0107u procesorskih instrukcija Neon.\n<\/ul>\n<p>Izvor: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=66596\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 SVT-AV1 4.3.0 (Scalable Video Technology AV1) c \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f\u043c\u0438 \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u0430 \u0438 \u0434\u0435\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, \u0434\u043b\u044f \u0443\u0441\u043a\u043e\u0440\u0435\u043d\u0438\u044f \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 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0430\u0445 x86_64 \u0438 ARM \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f \u0434\u043b\u044f \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. \u041f\u0440\u043e\u0435\u043a\u0442 \u0441\u043e\u0437\u0434\u0430\u043d \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0435\u0439 Intel \u0432 \u043f\u0430\u0440\u0442\u043d\u0451\u0440\u0441\u0442\u0432\u0435 \u0441 Netflix \u0441 \u0446\u0435\u043b\u044c\u044e \u0434\u043e\u0441\u0442\u0438\u0436\u0435\u043d\u0438\u044f \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 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-184097","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 SVT-AV1 4.3.0 (Scalable Video Technology AV1) c \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f\u043c\u0438 \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u0430 \u0438 \u0434\u0435\u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u0430 \u0444\u043e\u0440\u043c\u0430\u0442\u0430 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