{"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\/it\/blog\/news\/alyans-aomedia-obyavil-o-stabilizaczii-videokodeka-av2","title":{"rendered":"L'alleanza AOMedia ha annunciato la stabilizzazione del codec video AV2.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Dopo la pubblicazione della prima versione stabile della libreria libavm con l'implementazione di riferimento del formato di codifica video AV2, l'alleanza Open Media (AOMedia) ha ufficialmente annunciato la stabilizzazione della specifica del codec AV2. A seguito della stabilizzazione del codec, i lavori si sono orientati verso l'integrazione di AV2 con i protocolli di streaming pi\u00f9 diffusi, la creazione di profili per applicazioni professionali e lo sviluppo di capacit\u00e0 hardware per accelerare la codifica e decodifica video nel formato AV2. Sono in fase di sviluppo un profilo a 12 bit per riprese cinematografiche professionali e HDR, un formato di contenitore video basato su ISO BMFF (MPEG-4 Part 12) e set di test per valutare la compatibilit\u00e0 delle implementazioni di terze parti con la specifica.<\/p>\n<p>Il formato AV2 \u00e8 stato creato con la partecipazione di aziende come Amazon, Apple, Cisco, Google, Huawei, Intel, Meta, Microsoft, Mozilla, Netflix, NVIDIA, Samsung Electronics e Tencent, e si sviluppa offrendo accesso gratuito ai brevetti e la possibilit\u00e0 di utilizzare il codec senza royalties. Rispetto all'AV1, il nuovo codec offre un miglioramento dell'efficienza di compressione, permettendo di aumentare la qualit\u00e0 mantenendo il bit rate attuale o di ridurre il bit rate senza alterare la qualit\u00e0. Il codec \u00e8 ottimizzato per vari scenari, tra cui streaming, video on demand (VOD), videoconferenze e applicazioni per realt\u00e0 virtuale e aumentata. Supporta scenari di trasmissione simultanea di pi\u00f9 flussi in un unico bitstream, ad esempio, per la trasmissione di video stereoscopico, angolazioni provenienti da telecamere diverse e video combinati.<\/p>\n<p>In AV2 continua ad essere utilizzata una struttura ibrida basata su blocchi, che a differenza di AV1 implementa superblocco pi\u00f9 grandi di 256\u00d7256, una partizione completamente ricorsiva e una divisione pi\u00f9 efficace dei parametri di luminosit\u00e0 e crominanza. \u00c8 stato impiegato un quantizzatore esponenziale unificato che copre un'ampia gamma di luminosit\u00e0 e offre una maggiore precisione di quantizzazione per video a 8, 10 e 12 bit, gestendo anche meglio i bit rate bassi. Le capacit\u00e0 di previsione delle variazioni inter-frame sono state modernizzate per migliorare la qualit\u00e0 della modellazione delle modifiche di luminosit\u00e0 e crominanza, considerando fino a 7 fotogrammi precedenti nella costruzione del modello, supportando l'interpolazione temporale e gestendo meglio il movimento in video ad alta risoluzione o con contenuti che cambiano rapidamente. Sono stati implementati ulteriori filtri per ridurre il rumore, diminuire gli artefatti da compressione e preservare i dettagli. <\/p>\n<p>Oltre alla realizzazione di riferimento del codec, il progetto VideoLAN sta sviluppando la libreria dav2d con un decoder alternativo per video in formato AV2. Per obiettivi e architettura, la libreria dav2d assomiglia al progetto dav1d e si distingue per l'implementazione del codec AV2 invece di AV1. Alcune funzionalit\u00e0 comuni sono state trasferite dalla base di codice di dav1d. Il progetto \u00e8 ottimizzato per raggiungere le massime prestazioni ed \u00e8 dichiarato il decoder AV2 pi\u00f9 veloce per tutte le piattaforme supportate. Nella sua attuale versione, dav2d supporta la decodifica di rappresentazioni a 8 e 12 bit, utilizzando ottimizzazioni basate su set di istruzioni avanzate per le architetture x86 (AVX2), ARM (AArch64 NEON) e RISC-V.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=65648\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043b\u0435\u0434\u043e\u043c \u0437\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0435\u0439 \u043f\u0435\u0440\u0432\u043e\u0433\u043e \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0433\u043e \u0440\u0435\u043b\u0438\u0437\u0430 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 libavm \u0441 \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0439 \u0444\u043e\u0440\u043c\u0430\u0442\u0430 \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432\u0438\u0434\u0435\u043e AV2, \u0430\u043b\u044c\u044f\u043d\u0441 Open Media (AOMedia) \u043e\u0444\u0438\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0431\u044a\u044f\u0432\u0438\u043b \u043e \u0441\u0442\u0430\u0431\u0438\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u043a\u043e\u0434\u0435\u043a\u0430 AV2. \u041f\u043e\u0441\u043b\u0435 \u0441\u0442\u0430\u0431\u0438\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043a\u043e\u0434\u0435\u043a\u0430 \u0440\u0430\u0431\u043e\u0442\u0430 \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0438\u043b\u0430\u0441\u044c \u043d\u0430 \u0438\u043d\u0442\u0435\u0433\u0440\u0430\u0446\u0438\u044e AV2 \u0441 \u043f\u043e\u043f\u0443\u043b\u044f\u0440\u043d\u044b\u043c\u0438 \u0441\u0442\u0440\u0438\u043c\u0438\u043d\u0433\u043e\u0432\u044b\u043c\u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430\u043c\u0438, \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u0435 \u043f\u0440\u043e\u0444\u0438\u043b\u0435\u0439 \u0434\u043b\u044f \u043f\u0440\u043e\u0444\u0435\u0441\u0441\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0438 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u044b\u0445 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0435\u0439 \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 [&hellip;]<\/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<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0421\u043b\u0435\u0434\u043e\u043c \u0437\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0435\u0439 \u043f\u0435\u0440\u0432\u043e\u0433\u043e \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0433\u043e \u0440\u0435\u043b\u0438\u0437\u0430 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 libavm \u0441 \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0439 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