Nharaunda dzeVhidhiyoLAN neFFmpeg dzakaburitsa kuburitswa kwedav1d 1.0.0 raibhurari nekushandiswa kweimwe yemahara decoder yeAV1 vhidhiyo encoding fomati. Iyo kodhi yeprojekiti yakanyorwa muC (C99) ine magungano ekuisa (NASM/GAS) uye yakagoverwa pasi perezinesi reBSD. Tsigiro yex86, x86_64, ARMv7 uye ARMv8 zvivakwa, uye masisitimu anoshanda FreeBSD, Linux, Windows, macOS, Android uye iOS yaitwa.
Iyo dav1d raibhurari inotsigira ese maficha eAV1, anosanganisira epamberi mhando dzesampling uye ese mavara kudzika kwekudzora paramita akataurwa mune yakatarwa (8, 10 uye gumi nemaviri bits). Raibhurari yakaedzwa pane yakakura muunganidzwa wemafaira muAV12 fomati. Chinhu chakakosha chedav1d ndechekutarisa kwayo pakuwana iyo yepamusoro inogoneka decoding kuita uye kuve nechokwadi chebasa remhando yepamusoro mune akawanda-akarukwa maitiro.
Mushanduro itsva:
- Sangano rekuverengera rakagadzirwa patsva, kusanganisira otomatiki tambo control.
- Yakawedzera kugona kumhanyisa kuverenga uchishandisa AVX-512 vector mirairo. Yakavandudzwa yakambowedzerwa optimizations yakavakirwa paSSE2 uye AVX2 mirairo.
- A API nyowani yakatsanangurwa kuti zviite nyore kushandisa maGPU kuti akurumidze.
- Yakawedzera API kuti uwane ruzivo nezve mafuremu ane matambudziko ne decoding.
Ngatikuyeuchidzei kuti AV1 vhidhiyo codec yakagadzirwa neOpen Media Alliance (AOMedia), inomiririra makambani akadai seMozilla, Google, Microsoft, Intel, ARM, NVIDIA, IBM, Cisco, Amazon, Netflix, AMD, VideoLAN, Apple. , CCN uye Realtek. AV1 yakamisikidzwa sechinhu chinowanika pachena, chisingabhadharise mavhidhiyo encoding fomati inooneka pamberi peH.264, H.265 (HEVC) uye VP9 maererano nemazinga ekumanikidza. Pakati pemhando dzezvisarudzo zvakaedzwa, paavhareji AV1 inopa mwero wakafanana wemhando uku ichidzikisa bitrate ne13% zvichienzaniswa neVP9 uye 17% yakaderera pane HEVC. Pakukwira kwema bitrate, kuwana kunowedzera kusvika 22-27% yeVP9 uye kusvika 30-43% yeHEVC. Mukuedzwa kwe Facebook, AV1 yakapfuura chimiro chikuru H.264 (x264) ne 50.3%, yepamusoro H.264 ne 46.2%, uye VP9 (libvpx-vp9) ne 34%.
Source: opennet.ru