Intel ya wallafa sakin ɗakin karatu na SVT-AV1 1.0 (Scalable Video Technology AV1), wanda ke ba da madadin mai rikodin rikodin bidiyo da mai ƙididdigewa don tsarin rikodin bidiyo na AV1, wanda ke amfani da damar yin lissafin daidaitattun kayan aikin da aka samo a cikin CPUs na zamani na Intel. Babban makasudin SVT-AV1 shine don cimma matakin aikin da ya dace da yin rikodin bidiyo akan-da-tashi da amfani da sabis na buƙatun bidiyo (VOD). An haɓaka lambar a matsayin wani ɓangare na aikin OpenVisualCloud, wanda kuma yana haɓaka masu rikodin SVT-HEVC da SVT-VP9, kuma ana rarraba su ƙarƙashin lasisin BSD.
Don amfani da SVT-AV1, kuna buƙatar aƙalla ƙarni na biyar na Intel Core processor (Intel Xeon E5-v4 da sabbin CPUs). Rufe rafukan 10-bit AV1 a ingancin 4K yana buƙatar 48 GB na RAM, 1080p - 16 GB, 720p - 8 GB, 480p - 4 GB. Saboda rikitarwar algorithms da aka yi amfani da su a cikin AV1, sanya wannan tsari yana buƙatar ƙarin albarkatu fiye da sauran nau'ikan, wanda baya ba da damar yin amfani da madaidaicin madaidaicin AV1 don canza rikodin lokaci na gaske. Misali, mai rikodin hannun jari daga aikin AV1 yana buƙatar ƙarin ƙididdigewa sau 5721, 5869 da 658 idan aka kwatanta da x264 (babban bayanin martaba), x264 (“high” profile) da libvpx-vp9 encoders.
Daga cikin canje-canje a cikin sabon sakin SVT-AV1:
- Ƙara goyon baya don S-frames (Frames Canja), tsaka-tsakin firam waɗanda za a iya annabta abubuwan da ke cikin su dangane da firam ɗin da aka yanke a baya daga bidiyo iri ɗaya a mafi girma. S-frames suna ba ku damar haɓaka ingantaccen matsi na rafukan kai tsaye.
- Haɓaka Matsakaicin Ƙimar Bit (CBR) yanayin sarrafawa don ƙarancin jinkiri.
- Ƙara goyon baya don watsa bayanai game da matsayin chroma subsampling.
- Ƙara ikon tsallake hotuna masu ɓarna bayan m kira.
- An faɗaɗa goyan bayan ƙaddamar da sauri zuwa saitattun M0-M10.
- An sauƙaƙa amfani da zaɓin “—fast-decode” kuma an inganta matakin farko na ƙaddamarwa cikin sauri.
- An inganta ingancin gani na sakamakon rikodi.
- An inganta amfani da ƙwaƙwalwar ajiya.
- Ƙara ƙarin haɓakawa dangane da umarnin AVX2.
source: budenet.ru