{"id":181962,"date":"2026-06-09T14:48:20","date_gmt":"2026-06-09T12:48:20","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/alyans-aomedia-obyavil-o-stabilizaczii-videokodeka-av2"},"modified":"2026-06-09T14:48:20","modified_gmt":"2026-06-09T12:48:20","slug":"alyans-aomedia-obyavil-o-stabilizaczii-videokodeka-av2","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/alyans-aomedia-obyavil-o-stabilizaczii-videokodeka-av2","title":{"rendered":"AOMedia liit teatas AV2 videokodeki stabiliseerimisest.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

P\u00e4rast AV2 videokodeki spetsifikatsiooni stabiliseerimist, mille k\u00e4igus avaldati libavm raamatukogu esimene stabiilne v\u00e4ljaanne, kuulutas Open Media (AOMedia) ametlikult v\u00e4lja AV2 kodeerimise spetsifikatsiooni stabiliseerimise. Stabiliseerimise j\u00e4rel keskendus t\u00f6\u00f6 AV2 integreerimisele populaarsete voogesitusprotokollidega, professionaalseks kasutamiseks m\u00f5eldud profiilide loomisele ning riistvaraliste v\u00f5imaluste arendamisele, et kiirendada AV2 formaadis video kodeerimist ja dekodeerimist. Arendamisel on 12-bitine profiil professionaalse filmimise ja HDR jaoks, ISO BMFF (MPEG-4 Part 12) p\u00f5hine videokonteineriformaat ning testkomplektid, et hinnata kolmandate osapoolte rakenduste \u00fchilduvust spetsifikatsiooniga.<\/p>\n

AV2 formaat loodi koost\u00f6\u00f6s ettev\u00f5tetega Amazon, Apple, Cisco, Google, Huawei, Intel, Meta, Microsoft, Mozilla, Netflix, NVIDIA, Samsung Electronics ja Tencent ning arendatakse edasi, pakkudes tasuta juurdep\u00e4\u00e4su patentidele ning v\u00f5imaldades koodeki kasutamist ilma litsentsitasudeta. AV1-st eristab uut koodekit suurem tihendust\u00f5husus, mis v\u00f5imaldab s\u00e4ilitada kvaliteeti sama bitikiirusel v\u00f5i v\u00e4hendada bitikiirus sellise kvaliteedi s\u00e4ilitamisega. Koodek on optimeeritud erinevate kasutusstsenaariumite jaoks, sealhulgas voogedastuseks, n\u00f5udmisel video edastamiseks (VOD), videokonverentsideks ning virtuaalse ja t\u00e4iendatud reaalsuse rakendamiseks. Toetatakse stsenaariume, kus edastatakse korraga mitu voogu \u00fches bitstream\u2019is, n\u00e4iteks stereoskoopilise video, erinevate kaamerate nurkade ja kombineeritud video edastamiseks.<\/p>\n

AV2 kasutab endiselt h\u00fcbriidset plokkideeritust, mis erinevalt AV1-st rakendab suuremaid superplokke 256×256, t\u00e4ielikku rekursiivset osade jagamist (partitioning) ja t\u00f5husamat ereduse ja v\u00e4rvuse parameetrite eraldamist. Kasutusele on v\u00f5etud \u00fchtne eksponentsiaalne kvantiseerija, mis katab laiemat ereduse vahemikku ja tagab suurema kvantiseerimise t\u00e4psuse 8-, 10- ja 12-bitise video jaoks, samuti haldab paremini madala bitikiirusaga. Vahekaartide muutuste ennustamise v\u00f5imalused on uuendatud, et parandada ereduse ja v\u00e4rvuse muutuste modelleerimise kvaliteeti, arvestades mudeli loomisel kuni 7 eelmist kadri, toetades ajaliselt (temporal) interpoleerimist ja paremini t\u00f6\u00f6tades k\u00f5rge eraldusv\u00f5imega video v\u00f5i kiiresti muutuva sisuga. On rakendatud t\u00e4iendavaid filtreid m\u00fcra v\u00e4hendamiseks, kompressioonist tingitud artefaktide v\u00e4hendamiseks ja detailide s\u00e4ilitamiseks. <\/p>\n

VideoLANi projekt arendab AV2 formaadi video alternatiivset dekooderit, nimega dav2d, lisaks kodeerimise standardile. Oma eesm\u00e4rkide ja arhitektuuri poolest sarnaneb dav2d projektile dav1d, kuna see rakendab AV2 kodeerimist AV1 asemel. M\u00f5ned \u00fcldised funktsioonid on saadud dav1d koodibaasist. Projekt on optimeeritud maksimaalse j\u00f5udluse saavutamiseks ja seda peetakse k\u00f5igi toetatud platvormide vahel k\u00f5ige kiiremaks olemasolevaks AV2 dekooderiks. Hetkel toetab dav2d 8- ja 12-bitiste esitluste dekodeerimist, rakendades kiirusel kiirusoptimeerimisi laiendatud k\u00e4skluste komplektide baasil x86 (AVX2), ARM (AArch64 NEON) ja RISC-V arhitektuuridele.
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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\u0434\u043b\u044f \u0443\u0441\u043a\u043e\u0440\u0435\u043d\u0438\u044f \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u043d\u0438\u044f \u0438 \u0434\u0435\u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432\u0438\u0434\u0435\u043e \u0432 \u0444\u043e\u0440\u043c\u0430\u0442\u0435 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-181962","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\udd47AOMedia teatas AV2 videokodeki stabiliseerimisest | ProHoster","description":"P\u00e4rast libavm teeki esimest stabiilset 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