VideoLAN kunye noluntu lweFFmpeg ipapashiwe ukukhutshwa kwethala leencwadi le-dav1d 0.6.0 ngomiliselo lwesinye isidikhowuda sefomathi yekhowudi yevidiyo yasimahla AV1. Ikhowudi yeprojekthi ibhalwe ngolwimi lweC (C99) kunye ne-assembler inserts (NASM / GAS) kunye isasazwa ngu phantsi kwelayisensi ye-BSD. Inkxaso ye-x86, x86_64, i-ARMv7 kunye ne-ARMv8 izakhiwo, kunye ne-Linux, i-Windows, i-macOS, i-Android kunye neenkqubo zokusebenza ze-iOS ziphunyeziwe.
Ithala leencwadi le-dav1d lixhasa zonke iimpawu ze-AV1, kuquka iimbono eziphambili isampuli kunye nazo zonke iiparamitha zokulawula ubunzulu bombala ezichazwe kwiinkcukacha (8, 10 kunye ne-12 bits). Ithala leencwadi livavanyiwe kwingqokelela enkulu yeefayile kwifomathi ye-AV1. Eyona nto iphambili ye-dav1d kugxininiso lwayo ekufezekiseni owona msebenzi uphezulu wokwenza iikhowudi kunye nokuqinisekisa umsebenzi okumgangatho ophezulu kwimowudi enemisonto emininzi.
Kwinguqulelo entsha:
- Π Π΅Π°Π»ΠΈΠ·ΠΎΠ²Π°Π½Ρ ΡΠΏΠ΅ΡΠΈΡΠΈΡΠ½ΡΠ΅ Π΄Π»Ρ Π°ΡΡ
ΠΈΡΠ΅ΠΊΡΡΡΡ ARM64 ΠΎΠΏΡΠΈΠΌΠΈΠ·Π°ΡΠΈΠΈ, ΠΎΡ
Π²Π°ΡΡΠ²Π°ΡΡΠΈΠ΅ ΠΌΠ½ΠΎΠ³ΠΈΠ΅ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΈ ΠΏΡΠΈ ΡΠ°Π±ΠΎΡΠ΅ Ρ Π³Π»ΡΠ±ΠΈΠ½ΠΎΠΉ ΡΠ²Π΅ΡΠ° Π² 10 ΠΈ 12 Π±ΠΈΡ.
- ΠΠΎΠ±Π°Π²Π»Π΅Π½Ρ ΠΎΠΏΡΠΈΠΌΠΈΠ·Π°ΡΠΈΠΈ Π½Π° Π±Π°Π·Π΅ ΠΈΠ½ΡΡΡΡΠΊΡΠΈΠΉ AVX-512 Π΄Π»Ρ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΉ prep_bilin, prep_8tap, cdef_filter ΠΈ mc_avg/w_avg/mask.
- ΠΠΎΠ±Π°Π²Π»Π΅Π½Ρ ΠΎΠΏΡΠΈΠΌΠΈΠ·Π°ΡΠΈΠΈ Π½Π° Π±Π°Π·Π΅ ΠΈΠ½ΡΡΡΡΠΊΡΠΈΠΉ SSSE3 Π΄Π»Ρ ΠΏΠΎΠ΄Π°Π²Π»Π΅Π½ΠΈΡ ΡΠΈΡΡΠΎΠ²ΠΎΠ³ΠΎ ΡΡΠΌΠ°.
- ΠΠΎΠ±Π°Π²Π»Π΅Π½Ρ ΠΎΠΏΡΠΈΠΌΠΈΠ·Π°ΡΠΈΠΈ Π½Π° Π±Π°Π·Π΅ ΠΈΠ½ΡΡΡΡΠΊΡΠΈΠΉ AVX2 Π΄Π»Ρ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΈ msac_adapt16.
- Π£ΡΡΡΠ°Π½Π΅Π½Ρ ΡΠ΅Π΄ΠΊΠΎ ΠΏΡΠΎΡΠ²Π»ΡΡΡΠΈΠ΅ΡΡ ΡΠ°ΡΡ
ΠΎΠΆΠ΄Π΅Π½ΠΈΡ Π² ΠΏΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠΈ Ρ ΡΡΠ°Π»ΠΎΠ½Π½ΡΠΌ Π΄Π΅ΠΊΠΎΠ΄ΠΈΡΠΎΠ²ΡΠΈΠΊΠΎΠΌ AV1;
- Π£Π»ΡΡΡΠ΅Π½Ρ ΠΎΠΏΡΠΈΠΌΠΈΠ·Π°ΡΠΈΠΈ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΉ msac, cdef ΠΈ looprestoration Π΄Π»Ρ ARM64;
- Π£Π»ΡΡΡΠ΅Π½Ρ ΠΎΠΏΡΠΈΠΌΠΈΠ·Π°ΡΠΈΠΈ AVX2 Π΄Π»Ρ cdef_filter;
- Π£Π»ΡΡΡΠ΅Π½Ρ ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΠΈ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΉ itxfm ΠΈ cdef_filter Π½Π° ΡΠ·ΡΠΊΠ΅ Π‘ΠΈ.
Khumbula ukuba ikhowudi yevidiyo AV1 iphuhliswe lumanyano Vula iMedia (AOMedia), eneenkampani ezifana neMozilla, Google, Microsoft, Intel, ARM, NVIDIA, IBM, Cisco, Amazon, Netflix, AMD, VideoLAN, Apple, CCN kunye neRealtek. I-AV1 ibekwe njengefomathi efumanekayo esidlangalaleni, engahlawulelwanga simahla yokufaka ikhowudi yevidiyo ebonakala iphambi kwe-H.264 kunye ne-VP9 ngokwemigangatho yoxinzelelo. Kuluhlu lwezigqibo ezivavanyiweyo, kwi-avareji ye-AV1 inikezela umgangatho ofanayo womgangatho ngelixa inciphisa i-bitrate nge-13% xa kuthelekiswa ne-VP9 kunye ne-17% ngaphantsi kwe-HEVC. Kwi-bitrate ephezulu, inzuzo iyanda kwi-22-27% ye-VP9 kunye ne-30-43% ye-HEVC. Kwiimvavanyo ze-Facebook, i-AV1 iphumelele iphrofayili ephambili ye-H.264 (x264) nge-50.3% ngokwenqanaba loxinzelelo, i-high profile H.264 nge-46.2%, kunye ne-VP9 (libvpx-vp9) nge-34.0%.
umthombo: opennet.ru