Intel e phatlalalitse tokollo ea laeborari ea SVT-AV1 1.0 (Scalable Video Technology AV1), e fanang ka mofuta o mong oa encoder le decoder bakeng sa sebopeho sa khouto sa video sa AV1, se sebelisang bokhoni ba komporo ea lisebelisoa tse tšoanang tse fumanehang ho Intel CPUs ea sejoale-joale. Sepheo se seholo sa SVT-AV1 ke ho finyella boemo ba ts'ebetso e loketseng ho fetisa video ka sefofaneng le ho sebelisoa litšebeletsong tsa video-on-demand (VOD). Khoutu e hlahisoa e le karolo ea morero oa OpenVisualCloud, o boetseng o nts'etsapele li-encoder tsa SVT-HEVC le SVT-VP9, 'me e ajoa tlas'a laesense ea BSD.
Ho sebelisa SVT-AV1, o hloka bonyane moloko oa bohlano oa Intel Core processor (Intel Xeon E5-v4 le li-CPU tse ncha). Ho khouta melapo ea 10-bit AV1 ka boleng ba 4K ho hloka 48 GB ea RAM, 1080p - 16 GB, 720p - 8 GB, 480p - 4 GB. Ka lebaka la ho rarahana ha li-algorithms tse sebelisoang ho AV1, ho khouta sebopeho sena ho hloka lisebelisoa tse ngata haholo ho feta lifomate tse ling, tse sa lumelleng ts'ebeliso ea encoder e tloaelehileng ea AV1 bakeng sa transcoding ea nako ea nnete. Mohlala, setoko sa setoko ho tsoa ho projeke ea AV1 se hloka lipalo tse makhetlo a 5721, 5869 le 658 ho feta ha ho bapisoa le x264 (profaele ea "main"), x264 ("phahameng") le li-encoder tsa libvpx-vp9.
Har'a liphetoho tse hlahang tokollong e ncha ea SVT-AV1:
- Tšehetso e ekelitsoeng bakeng sa S-frames (Switching Frames), liforeimi tsa mahareng tseo litaba tsa tsona li ka hakanyetsoang ho latela liforeimi tse neng li se li hlakotsoe tsa litšupiso tse tsoang videong e tšoanang ka boleng bo holimo. Liforeimi tsa S li u lumella ho eketsa katleho ea khatello ea melapo e phelang.
- E kentse Constant Bit Rate (CBR) mokhoa oa ho laola encoding bakeng sa latency e nyane.
- Tšehetso e ekelitsoeng bakeng sa ho fetisa tlhahisoleseling mabapi le boemo ba lisampole ba chroma.
- E ekelitse bokhoni ba ho tlola litšoantšo tsa denoising ka mor'a ho kopanya ka thata.
- Ts'ehetso ea li-decoding e potlakileng e atolositsoe ho li-presets tsa M0-M10.
- Ts'ebeliso ea khetho ea "-fast-decode" e nolofalitsoe mme boemo ba pele ba ho khetha ka potlako bo ntlafalitsoe.
- Boleng ba pono ea sephetho sa khouto bo ntlafalitsoe.
- Tšebeliso ea memori e ntlafalitsoe.
- E kentse lintlafatso tse ling tse ipapisitseng le litaelo tsa AVX2.
Source: opennet.ru