Obodo VideoLAN na FFmpeg ntọhapụ nke ọba akwụkwọ dav1d 0.7.0 yana mmejuputa usoro ihe ngbanwe vidiyo na-efu efu. . Edere koodu oru ngo na C (C99) na ntinye mgbakọ (NASM/GAS) na n'okpuru ikikere BSD. Nkwado maka x86, x86_64, ARMv7 na ARMv8 architectures, na Linux, Windows, macOS, gam akporo na iOS sistemụ arụ ọrụ.
Ọbá akwụkwọ dav1d na-akwado atụmatụ AV1 niile, gụnyere echiche dị elu yana usoro njikwa omimi agba niile ekwuputara na nkọwapụta (8, 10 na 12 bits). A nwalere ọbá akwụkwọ ahụ na nnukwu nchịkọta faịlụ n'ụdị AV1. Akụkụ bụ isi nke dav1d bụ itinye uche ya n'inweta arụmọrụ ngbanwe kachasị elu enwere ike ime yana hụ na ọrụ dị oke mma na ọnọdụ multi-threaded.
В :
- Arụ ọrụ nke refmv (Dynamic Reference Motion Vector Prediction) mmejuputa iwu na-abawanye site na ihe dịka 12% ma na-ebelata oriri ebe nchekwa ihe dịka 25%;
- Mmejuputa atumatu ARM64-kpọmkwem ihe owuwu ihe fọrọ nke nta ka ọ bụrụ nke zuru oke, na-ekpuchi ọtụtụ ọrụ mgbe ị na-arụ ọrụ omimi agba nke 8, 10 na 12 bits;
- Ihe nzacha CDEF agbakwunyere site na iji ntuziaka AVX-512;
- agbakwunyere nkwalite ọhụrụ dabere na ntuziaka AVX2 na SSSE3;
- Utility dav1dpla emelitela nkwado maka ịrụ ọrụ na omimi agba 10-bit, na-abụghị 4: 2: 0 pixel formats yana nkwụsị mkpọtụ dijitalụ na GPU.
Cheta na codec vidiyo ahụ mebere site na mmekorita (AOMedia), nke nwere ụlọ ọrụ dị ka Mozilla, Google, Microsoft, Intel, ARM, NVIDIA, IBM, Cisco, Amazon, Netflix, AMD, VideoLAN, Apple, CCN na Realtek. AV1 ka edobere ka ọhaneze dị, usoro ngbanwe vidiyo efu na-enweghị eze nke dị n'ihu H.264 na VP9 n'ihe gbasara ọkwa mkpakọ. N'ofe nke mkpebi a nwalere, na nkezi AV1 na-enye otu ọkwa nke ịdị mma ma na-ebelata bitrates site na 13% ma e jiri ya tụnyere VP9 na 17% dị ala karịa HEVC. Na nnukwu bitrates, uru ahụ na-abawanye na 22-27% maka VP9 na 30-43% maka HEVC. N'ime ule Facebook, AV1 pụtara isi profaịlụ H.264 (x264) site na 50.3% n'ihe gbasara ọkwa mkpakọ, profaịlụ dị elu H.264 site na 46.2%, na VP9 (libvpx-vp9) site na 34.0%.
isi: opennet.ru