WebM idapangidwira intaneti, imapereka makanema otsatsira opanda ndalama zambiri okhala ndi ma codec a VP8/VP9.
Ntchito Zofala
Kusewera makanema a HTML5 mu asakatuli
Kuwonera makanema kokonzedwa bwino pa intaneti
Kugawa makanema opanda ndalama
WebM Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu
Kodi ndi WebM kanema wapamwamba?
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WebM imapangidwa kuti ipereke kanema. Imagawa kanema kukhala ma segments ochepa omwe wosewera mpira angasinthire pakati pawo malinga ndi bandwidth ya wosewera mpira, zomwe zimathandiza kuti kusewera kukhale kosavuta pazolumikizana zosagwirizana. WebM ndi mwanzeru m'mbali: VP8 kapena VP9 kanema (AV1 zaposachedwapa) ndi Vorbis kapena Opus audio, ndi chilichonse chinachake.
Kodi Matroska container imapatsa fayilo ya WebM?
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Matroska imasunga ma stream onse monga zinthu zosagwirizana ndi metadata yake, choncho WebM siyimakhala ndi nzeru zokwanira za momwe ma audio tracks, subtitle tracks, chapters kapena attachments amaloledwa kunyamula. Mtengo ndi kuti chipangizo cha ntchito zonse sichingaganizire chilichonse za zomwe zili, chifukwa chake osewera a hardware ndi ovuta kwambiri kuposa mapulogalamu a desktop. WebM ndi chigawo cholimba cha Matroska chomwe Google chidatulutsa mu 2010 pofuna kupatsa HTML5 kanema chidebe chopanda royalty.
Nchifukwa chiyani zinthu zambiri za webusaiti zimaperekedwa ngati WebM?
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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. WebM amasewera natively mu aliyense wamakono browser ndi palibe plugin, palibe chilolezo ndalama ndi palibe patent kuwonekera, zomwe zimapangitsa kuti default kwa web-embedded kanema.
Kodi ndingapeze WebM mu tabu ya browser popanda kukhazikitsa chilichonse?
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Yes - WebM 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".
Kodi ma subtitle m'malo a WebM amatha kusankhidwa, kapena kuphulika m'zithunzi?
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Chosankha, ngati adawonjezeredwa bwino. WebM 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 WebM 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.
Nchifukwa chiyani pali nyimbo imodzi yokha yomwe imapezeka mu WebM yanga?
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Chifukwa chake, mtunduwo umatha kuyendetsa bwino. Ma streams ena a audio amatha kulemba mu WebM, koma kusewera kuthandizira pambuyo pa gawo loyamba ndilopanda malire kwambiri kuti zida zambiri zimatenga imodzi ndipo zimachotsa zina. Ngati chiyambi chili ndi ndemanga kapena zinenero zina, chotsani zomwe zili ndi audio files osiyana kuposa kuwapatsa chikwama chomwe chimawala. WebM ndi woipa fit kulikonse kunja kwa browser - video olemba, foni's native galleries ndi Smart TVs kwambiri ku ignore izo.
Kodi WebM ikugwirizana ndi Google?
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Ilipo kuchokera ku Google ndipo imatulutsidwa mosatsegulidwa, ndi zofunikira zomwe aliyense angagwiritse ntchito ndipo palibe ndalama zowonjezera - zomwe ndichifukwa chake mawebusayiti amagwiritsa ntchito mwachangu. Kugwiritsa ntchito kwake sikungayambitse ntchito iliyonse ya Google. Kuthandizira kunja kwa mawebusayiti ndi malire abwino: ambiri a mapulogalamu a desktop, ma galleri a foni ndi mateleviziyo sakuwerenga.
N'chifukwa chiyani kusintha WebM kuti wina video mtundu?
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Kusintha WebM kuti MP4 pamene mukufuna universal playback - webusaiti owerenga, zipangizo zamakono, smart TV ndi kusintha mapulogalamu onse kusewera MP4 natively. Kusintha WebM kwa webusaiti embedding pamene ochepa wapamwamba kukula zinthu. Kusintha MOV pamene ntchito mu Final Cut kapena ena Apple-native ma pipelines.
Kodi WebM kusintha re-encode kanema?
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Ngati codec yochokera m'ma WebM ndi yogwirizana ndi kontena yoyenera, tidzasintha popanda kubwezeretsa (mosavuta, osawonongeka). Ngati codec iyenera kusintha (mwachitsanzo, HEVC kupita ku H.264), kanemayo imasinthidwanso - mofulumira, ndi mtengo wotsika wa mtundu wa zaka.
