{"id":139748,"date":"2025-07-27T23:11:57","date_gmt":"2025-07-27T21:11:57","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-svt-av1-3-1-0-kodirovshhika-dlya-formata-video-av1"},"modified":"2025-07-27T23:11:57","modified_gmt":"2025-07-27T21:11:57","slug":"vypusk-svt-av1-3-1-0-kodirovshhika-dlya-formata-video-av1","status":"publish","type":"post","link":"https:\/\/prohoster.info\/nl\/blog\/news\/vypusk-svt-av1-3-1-0-kodirovshhika-dlya-formata-video-av1","title":{"rendered":"Release van SVT-AV1 3.1.0, een encoder voor het AV1 videoformaat","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>De bibliotheek SVT-AV1 versie 3.1.0 (Scalable Video Technology AV1) is uitgebracht met implementaties van de encoder en decoder voor het videocompressieformaat AV1. Voor de versnelling ervan worden de uitbreidingen voor hardwarematige parallelisering van berekeningen in x86_64- en ARM-processors gebruikt. Dit project is opgericht door Intel in samenwerking met Netflix, met als doel een prestatie-niveau te bereiken dat geschikt is voor het on-the-fly transcoderen van video en het gebruik in video-on-demand (VOD) services. Momenteel wordt de ontwikkeling geleid door de Open Media Alliance (AOMedia), die de ontwikkeling van het videocompressieformaat AV1 co\u00f6rdineert. Eerder werd het project ontwikkeld in het kader van het OpenVisualCloud-project, dat ook de encoders SVT-HEVC en SVT-VP9 ontwikkelt. De code wordt verspreid onder de BSD-licentie.     <\/p>\n<p>SVT-AV1 kan worden samengesteld voor systemen op basis van elke architectuur waarvoor een compiler met ondersteuning voor de C99-standaard beschikbaar is, maar de beste prestaties worden bereikt op x86_64-systemen, waar assemblage-optimalisaties op basis van SIMD-instructies worden toegepast (bij voorkeur met CPU-ondersteuning voor AVX2, maar SSE2 is als minimum voldoende). Het geheugengebruik hangt af van het aantal processorcores dat wordt gebruikt tijdens het coderen, dat wordt gereguleerd door de optie &#171;&#8212;lp&#187;. Vanwege de complexiteit van de algoritmen die in AV1 worden gebruikt, zijn er voor het coderen van dit formaat aanzienlijke meer middelen nodig dan voor andere formaten; bijvoorbeeld vereist de standaardcoder van het AV1-project 5721, 5869 en 658 keer meer berekeningen in vergelijking met de x264-coders (profiel &#171;main&#187;), x264 (profiel &#171;high&#187;) en libvpx-vp9.     <\/p>\n<p>Onder de wijzigingen in de nieuwe release van SVT-AV1:  <\/p>\n<ul>\n<li class=\"l\"> Er zijn optimalisaties uitgevoerd voor de kwaliteits-\/snelheidscompromissen van presets die gemiddelde en hoge kwaliteitsniveaus bieden. In de modus &#171;fast-decode 0&#187; voor de presets M1-M5 is de snelheid met 15-25% gestegen bij behoud van de kwaliteitsniveau. In de fast-decode 1 en 2 modi voor de presets M3-M7 is de snelheid met 15-20% gestegen bij behoud van de kwaliteitsniveau. Voor de presets M0 en MR is het kwaliteitsniveau met ongeveer 1-1.5% verbeterd volgens de beoordeling met de BD-Rate (Bjontegaard-Delta) methode.\n<li class=\"l\"> De prestaties in de low-delay codering modus zijn aanzienlijk verbeterd.\n<li class=\"l\"> De prestaties in de RTC-modus zijn met 5-10% verhoogd.\n<li class=\"l\"> Op ARM-systemen zijn optimalisaties op basis van de Neon- en SVE2-extensies toegepast, waardoor de prestaties van de codering van streams in lage resolutie met een hoge kleurendiepte met 5% zijn verhoogd.\n<li class=\"l\"> Op ARM-systemen is de prestatie van video-codering verhoogd in liggende (1080p +4%, 720p +6%, 480p: +6%, 360p: +3%, 240p: +4%) en staande (1080p +8%, 720p +4%, 480p +3%, 360p +7%, 240p +4%) modus.\n<li class=\"l\"> In de modus voor willekeurige toegang is ondersteuning voor S-frames ge\u00efmplementeerd.\n<li class=\"l\"> Van de fork SVT-AV1-SPY zijn de implementatie van de vlaggen &#171;&#8212;chroma-qm-min&#187; en &#171;&#8212;chroma-qm-max&#187; overgebracht, evenals verbeteringen met betrekking tot Variance Boost (implementatie van het adaptieve quantisatie-algoritme VAQ).\n<li class=\"l\"> In de RTC-modus zijn de presets M11 en M12 ingeschakeld.    <\/ul>\n<p>Bron: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=63637\">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 3.1.0 (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":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-139748","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - 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 3.1.0 (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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