AV1 ndi mawonekedwe otseguka, opanda malipiro a kanema opangidwa kuti aziyenda bwino pa intaneti. Amapereka mphamvu yopondereza kwambiri popanda kusokoneza mawonekedwe.
Ntchito Zofala
Modern web video
High-efficiency streaming
Next-gen video
AV1 Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu
Kodi ndi chiyani AV1 kanema fayilo?
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AV1 ndi video codec kuposa chonyamula - amafotokoza mmene aliyense frame ndi encoded. AV1 ndi nthawi zambiri anapaka m'matumba m'nyumba ya chonyamula monga MP4 kapena MKV pamene anasunga pa diski.
Kodi AV1 ndi codec kapena mtundu wa fayilo?
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Codec, chifukwa chake yankho la "mwanji ndizitsegule" siliyenera kukhala lokha. AV1 limafotokoza mmene chithunzi chimasinthidwa; silimanena chilichonse za momwe bitstream ikugwiritsidwa ntchito pa diski, ndipo iyenera kukhala ndi chonyamula m'malo mwake kuti wosewerayo ayambe kuika. Fayilo yotchedwa AV1 m'maphunziro ndi bitstream m'matumba ena oyera, ndipo kusintha kumatanthauza kusintha matumba, codec, kapena onse awiri. AV1 ndi royalty-free video codec Alliance for Open Media anatulutsa mu 2018 monga wotsatira wa VP9.
Nchifukwa chiyani zinthu zambiri za webusaiti zimaperekedwa ngati AV1?
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Chifukwa cha izi, imapangidwa kuti ikwaniritse ntchitoyi: mafayilo ang'onoang'ono, kukhazikitsidwa kwamphamvu, palibe plugin ndi lisensi yokhumudwitsa. Izi zimapangitsa kuti zikhale zabwino pakutumiza ndi zosadziwika pazinthu zonse - zosintha, ma galseriya a foni ndi zida zakale zimazi ignore. Kusintha kwa mtundu wazofunikira ndi zomwe zimapangitsa kuti zinthu zomwe zatsitsa zitha kugwiritsidwa ntchito pa intaneti. AV1 amabweretsa pafupifupi 30% yabwino kusamvana kuposa H.264 pa ubwino wofanana ndi kunyamula palibe ndalama latsopano, chifukwa chake YouTube ndi Netflix kunyamula izo.
Kodi ndingapeze AV1 mu tabu ya browser popanda kukhazikitsa chilichonse?
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Yes - AV1 ndi imodzi mwamapulogalamu amtundu wa kanema omwe amagwiritsa ntchito masamba, chifukwa chake kuchotsa fayilo ku tab kapena kuyika patsamba limagwira ntchito pa desktop ndi mafoni. Izi zimapangitsa kuti zikhale zoyenera kwa chilichonse chomwe chiyenera kusewera patsamba la webusaiti, ndipo ndichifukwa chake kusintha kwa mtunduwu nthawi zambiri ndi njira yofulumira yosinthira "vidiyo siyidzasewera patsamba langa".
Nchifukwa chiyani AV1 kusewera kumathamanga kapena kutuluka pa makina oyambirira?
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Chifukwa chake chimasinthidwa mu software. Ma decoders a hardware video amaphatikizapo mndandanda wokhazikika wa mafomu, ndipo AV1 ndi kunja kwa izi pazinthu zambiri, kotero kuti chilichonse chimapangidwanso ndi CPU. Pa desktop yatsopano yomwe ndi yowononga; pafoni, laptop yakale kapena smart TV imawonekera ngati ma frame osunthira, mpweya wa fan ndi batri. Kusintha kwa mtundu wothandizidwa ndi hardware kumachotsa vuto lonse. AV1 ndi codec, si kontena - bitstream nthawi zambiri amayenda m'ma MP4 kapena WebM, kugwirizana ndi Opus kapena AAC audio.
Kodi ma subtitle m'malo a AV1 amatha kusankhidwa, kapena kuphulika m'zithunzi?
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Chosankha, ngati adawonjezeredwa bwino. AV1 imabweretsa ma subtitle monga ma stream awo okha kudzera pa kanema, kotero woyang'anira angasinthire maphunziro, kuwachotsa, kapena kuwasintha m'masewera omwe amathandizira. Ma subtitle osungunuka ndi othekanso - ndi pixels okha mu frame - koma ndi okhazikika, ndipo nthawi zina palibe chifukwa chosankha pamene chonyamula chimathandizira chinthu choyenera.
Kodi AV1 ndi yatsopano kwambiri kuti ithandizidwe mokwanira?
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Kuchepetsa choncho chaka chilichonse, koma kusiyana ndi lakuti. Software thandizo anafika mofulumira; hardware thandizo akubwera ndi zipangizo zatsopano, ndipo foni, TV kapena wosewera mpira m'mbuyomu inu mukhoza kungoti anayamba izo. pamene ali ovomerezeka ndi kuyerekeza bwino kuposa mtundu amasintha, chifukwa chake ndi bwino kusintha kwa kutumiza ndi kusinthidwa kwa kugwirizana.
Kodi fayilo ya AV1 ingagwiritsidwe ntchito ndi ma audio angapo?
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Yes — a original-language mix, a dub ndi nkhani ya nkhani zonse zikhoza kukhala mu fayilo imodzi ndi wosewera mpira kusinthidwa pakati pawo. Malamulo awiri: ambiri foni ndi TV osewera kusonyeza kokha koyamba track ngakhale ambiri ndi opezeka, ndi kusintha kwa mtundu popanda multi-track chithandizo chabwino amasunga track imodzi ndi kuchotsa ena. Sankhani track mukufuna pamaso kusinthidwa, kuposa kuzindikira pambuyo amene mmodzi anapulumuka.
N'chifukwa chiyani atembenuke AV1 kuti wina video mtundu?
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Kusintha AV1 kuti MP4 pamene mukufuna universal playback - webusaiti owerenga, zipangizo zamakono, smart TV ndi kusintha mapulogalamu onse kusewera MP4 natively. Kusintha kwa WebM kwa webusaiti embedding pamene ochepa wapamwamba kukula zinthu. Kusintha kwa MOV pamene ntchito mu Final Cut kapena ena Apple-native ma pipelines. Kodi AV1 ndi yochepa, ndipo decoders ya hardware idawonekera pafoni ndi TV kuyambira 2020 mpaka pano - zida zakale zimabwerera ku decoding ya software yokhala ndi mphamvu.
Kodi AV1 kusintha re-encodes kanema?
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Ngati codec yochokera m’AV1 ndi yogwirizana ndi kontena yoyenera, tidzaisintha popanda kubwezeretsa (mosavuta, osawononga). Ngati codec iyenera kusintha (mwachitsanzo, HEVC kupita ku H.264), kanemayo imasinthidwanso — mofulumira, ndi mtengo wotsika wa mtundu wa mtundu.
