FLV (Kung'anima Video) ndi kanema chidebe mtundu kupanga ndi Adobe. Imagwiritsidwa ntchito posaka mavidiyo pa intaneti ndipo imathandizidwa ndi Adobe Flash Player.
Ntchito Zofala
Flash video
Online streaming
Legacy web video
FLV Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu
Kodi ndi FLV kanema wapamwamba?
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FLV ndi video chidebe kuti ali ndi imodzi kapena zambiri video ma streams, audio nyimbo, ndi optional subtitle. Zosiyana chidebe kugwirizana codecs zosiyanasiyana, kotero kugwirizana kutengerapo onse wrapper ndi zimene zili m'gulu lake.
Fayilo ndi yabwino; wosewerayo wachoka. A FLV ali ndi kanema wosinthidwa ndi kanema ndi kanema, kotero chida cha desktop chomwe chimasiya kuganizira nkhani ya plug-in ya browser imawerenga popanda vuto. Zomwe sizikupezekanso ndi njira iliyonse yotsegulira imodzi - palibe browser, palibe foni, palibe TV. Kusintha sikungokhala ndi kusamalira koyenera, ndi njira yokhayo yomwe imawoneka kuti imawoneka. No msakatuli watsopano, foni kapena TV angagwiritse ntchito FLV - chilichonse choterobe mu bokosi lachitsulo ayenera kunyamula kunja kwa izo kuti azikhala watchable.
Kodi FLV ndi mtundu wofa?
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Kuchokera pa mfundo ya kutumiza, yeah — ecosystem amene ananyamula izo analephera, ndi chilichonse inu ndithudi kungakhale kutsegulira fayilo ndi lero amathandiza izo. Kuchokera pa archive izo ndi kwambiri moyo: zochuluka kwambiri zipangizobe kulowa mu izo. Kusintha si modernization kwa cholinga chake yekha pano; ndi kusiyana pakati pa kanema inu mukhoza kuyang'ana ndi kanema inu simungathe.
Nchifukwa chiyani zinthu zambiri za webusaiti zimaperekedwa ngati FLV?
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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 galleri a foni ndi zida zakale zimazi ignore. Kusintha kwa mtundu wazofunikira ndi zomwe zimapangitsa kuti zinthu zomwe zatsitsa zitha kugwiritsidwa ntchito pa intaneti. FLV ya pansi pa-packet overhead anachititsa izo zabwino pa streaming pa unreliable kugwirizana wa nthawi yake, ndi mabuku akuluakulu a izobe zilipo.
Nchifukwa chiyani msakatuli wanga sadzasewera fayilo ya FLV?
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Mawebusayiti amatumiza decoders kwa mndandanda wocheperako wa mafomu, ndipo FLV siyipatsidwa - lisensi, mtundu wa codec womwe umalola, kapena nthawi yake imatenga. Fayilo siyimawonongeka ndipo wosewera wa desktop adzatsegula, koma palibe chomwe mungachite patsambalo kuti mupange msakatuli. Kusintha kwa webusaitiyi ndi njira yokha yotsimikizika yosewera.
Nchifukwa chiyani FLV 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 FLV 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. FLV nthawi zambiri ali Sorenson Spark kapena H.264 kanema ndi MP3 kapena AAC audio, wopangidwa mu stream format anapanga kwa RTMP kutumiza.
Kodi ma subtitle amapita ku fayilo ya FLV?
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Pambuyo pake, kapena m'malo mwake. FLV siyimakhala ndi ma subtitle ake, kotero njira ziwiri ndi sidecar.srt fayilo yomwe wosewerayo amayika pafupi ndi kanemayo, kapena kutulutsa mawu m'ma frame nthawi ya re-encoding. Sidecar imasunga ma subtitle omwe angasinthidwe ndi kusinthika koma amayenda ngati fayilo yachiwiri yomwe ndi yosavuta kuwonongeka; kutulutsa kumatha kuwononga chilichonse chosinthika koma sichingathe kulephera pambuyo pake.
Nchifukwa chiyani pali nyimbo imodzi yokha yomwe imapezeka mu FLV yanga?
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Chifukwa chake, mtunduwo umatha kuyendetsa bwino. Ma streams ena a audio amatha kulemba mu FLV, 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.
N'chifukwa chiyani kusintha FLV kuti wina video mtundu?
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Kusintha FLV 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 mapipa.
Kodi FLV kusintha re-encode kanema?
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Ngati codec wa m'mawu a FLV ndi wogwirizana ndi mtundu wa kanema, titha kuwonjezera ma codec ena (mwachitsanzo, HEVC kapena H.264) kuti tisinthe kanemayo kuti azikhala ndi mtundu watsopano, wotsika mtengo komanso wolimba.
