I-Intel ishicilele ukukhishwa komtapo wezincwadi we-SVT-AV1 1.0 (Scalable Video Technology AV1), ohlinzeka ngenye i-encoder nedecoder yefomethi yokufaka ikhodi yevidiyo ye-AV1, esebenzisa i-hardware parallel computing amakhono atholakala kuma-Intel CPUs esimanjemanje. Umgomo oyinhloko we-SVT-AV1 uwukufinyelela izinga lokusebenza elifanele ukudluliselwa kwekhodi endizeni kwevidiyo nokusetshenziswa kumasevisi evidiyo-on-demand (VOD). Ikhodi ithuthukiswa njengengxenye yephrojekthi ye-OpenVisualCloud, ephinde ithuthukise izifaki khodi ze-SVT-HEVC ne-SVT-VP9, futhi isatshalaliswe ngaphansi kwelayisensi ye-BSD.
Ukuze usebenzise i-SVT-AV1, udinga okungenani iphrosesa ye-Intel Core yesizukulwane sesihlanu (Intel Xeon E5-v4 nama-CPU amasha). Ukufaka ikhodi ukusakaza kwe-AV10 kwe-1-bit ngekhwalithi ye-4K kudinga u-48 GB we-RAM, 1080p - 16 GB, 720p - 8 GB, 480p - 4 GB. Ngenxa yobunkimbinkimbi bama-algorithms asetshenziswa ku-AV1, ukubhala ngekhodi le fomethi kudinga izinsiza eziningi kakhulu kunamanye amafomethi, okungakuvumeli ukusetshenziswa kwesishumeki se-AV1 esijwayelekile sokudlulisa amakhodi ngesikhathi sangempela. Isibonelo, isifaki khodi sesitoko esisuka kuphrojekthi ye-AV1 sidinga izibalo eziphindwe izikhathi ezingu-5721, 5869 nezingu-658 uma kuqhathaniswa nezishumeki ze-x264 ("eziyinhloko"), x264 ("eziphezulu") nezishumeki ze-libvpx-vp9.
Phakathi kwezinguquko ekukhishweni okusha kwe-SVT-AV1:
- Usekelo olungeziwe lwama-S-frames (Ukushintsha amafreyimu), ozimele abamaphakathi okuqukethwe kwabo kungabikezelwa ngokusekelwe kumafreyimu ayizithenjwa ahunyushwe ngaphambilini avela kuvidiyo efanayo ngokulungiswa okuphezulu. Ama-S-frames akuvumela ukuthi ukhuphule ukusebenza kahle kokuminyanisa kokusakaza bukhoma.
- Kungezwe imodi yombhalo wekhodi ye-Constant Bit Rate (CBR) ukuze uthole ukubambezeleka okuncane.
- Usekelo olungeziwe lokudlulisa ulwazi mayelana nokuma kwesampula encane ye-chroma.
- Kwengezwe ikhono lokweqa izithombe ezikhipha umsindo ngemva kokuhlanganiswa okungalungile.
- Usekelo lokukhipha amakhodi okusheshayo lunwetshiwe ukuze lube sekusethiwe ngaphambili kwe-M0-M10.
- Ukusetshenziswa kwenketho ethi ββi-fast-decodeβ yenziwe yaba lula futhi ileveli yokuqala yokuqopha ngokushesha isithuthukisiwe.
- Ikhwalithi ebonakalayo yomphumela wombhalo wekhodi ithuthukisiwe.
- Ukusetshenziswa kwememori kuthuthukisiwe.
- Kwengezwe ukulungiselelwa okwengeziwe okusekelwe kumiyalo ye-AVX2.
Source: opennet.ru