3GP ndi stripped-m'munsi MP4 anamanga kwa mafoni mafoni posachedwapa, kotero owona ndi ochepa koma resolution ndi audio quality ndi zokwanira.
Ntchito Zofala
Mobile video
3G streaming
Phone video
3GP Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu
Kodi ndi fayilo ya 3GP?
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3GP is a multimedia container format designed for 3G mobile phones.
Kodi fayilo ya 3GP ndi yofanana ndi MP4 pansipa?
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3GP imapangidwa kuchokera kuzinthu zofanana ndi ISO Base Media File Format box layout MP4 imagwiritsa ntchito - mchere wa atomu wokhala ndi deta ya media komanso index yomwe ikunena kuti pomwepo pamapeto pake. Izi ndichifukwa chake kusintha pakati pawo nthawi zambiri ndi rewrap kuposa kubwezeretsa: ma streams amakopedwa mosakhudzana ndipo wolembayo amasinthidwa, zomwe zimatenga masekondi ngakhale pa fayilo yazaka zambiri. 3GP ndi chonyamula 3GPP standardized kwa mafoni amakono, pamene kanema anayenera kugwirizana ndi 176x144 chophimba ndi 2G deta ndondomeko.
Popeza foni imalemba chilichonse chomwe chimapanga chip chake mu hardware, ndipo 3GP ndi chomwe chimapangidwa ndi silicon. App ya kamera siyifunsa - imalemba mtundu womwe chipangizocho chimatha kupanga popanda kulephera kapena kutentha, zomwe sizofunikira kuti zikhale ndi mtundu womwe wina akufuna kulandira. Kusintha pambuyo pake ndi koyenera ndipo sichiwononga chilichonse pazomwe zimafunikira pamene chida chimakhala ndi ndalama zofanana.
Nchifukwa chiyani msakatuli wanga sadzasewera fayilo ya 3GP?
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Mawebusayiti amatumiza decoders kwa mndandanda wocheperako wa mafomu, ndipo 3GP 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. 3GP ndi capped pa low resolutions ndi mono mawu-grade audio; upscaling izo sadzabwezeretsa mfundo zimene zinalibe anataya.
Kodi 3GP idzasewera pafoni kapena TV popanda kutulutsa batri?
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Nthawi zambiri ndi choncho, chifukwa ma chips mu mafoni, ma tablet ndi ma televisions amachotsa ma code a ma payloads amtunduwu m’ma silicon osankhidwa osati pa main processor. Izi ndi zosiyana pakati pa kanema womwe umasewera bwino kwa maola awiri ndi wina amene umatentha chipangizocho ndipo umachisiya m’maola asanu ndi awiri. Pamene mtunduwo umagwa pansi ndi kuthandizira kwa app kuposa kuchotsa ma code – codec ndi bwino, wrapper ndi zomwe gallery app ingakane. 3GP ali H.263 kapena MPEG-4 gawo 2 kanema ndi AMR narrowband mawu audio, onse tuned kwa minimal bitrate osati khalidwe.
Mu kutsatira yemweyo, ayi. The format anafotokozedwa m'madera amodzi kapena awiri, kotero surround mix ayenera kuikidwa pansi stereo kuti agwirizane - amene ndi bwino kwa headphones ndi foni okamba ndi zoipa kwa chilichonse kumbuyo kwa home cinema wolandira. Ngati chiyambi ali multichannel mix woyenera kuteteza, kusintha mu chonyamula kuti amayendetsa izo kuposa kulola downmix kuchitika mosasamala.
Kodi ndingasinthe dzina la chidacho popeza 3GP sichisintha?
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Kwambiri nthawi zonse, ndipo ndi bwino kumvetsa chifukwa chake: kuwonjezeka ndi label, pamene bytes m'maganizo ndi zopangidwa kwa mtundu wina mfundo. Kusintha dzina amapanga fayilo amene dzina lake amalonjeza chinachake za zinthu zake sikuti kubweretsa, ndi zimene amatsegula izo kapena amakana fayilo kapena misreads izo. Mmodzi waukulu kulephera ndi awiri mtundu amene ndi weniweni wofanana wonyamula pansi pa dzina losiyana - ndi ngakhale pamenepo bwino rewrap ndi chitetezo kuposa kusintha dzina.
Kodi ndingasinthe fayilo yonse ya 3GP mafayilo m'modzimmodzi?
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Ndi akaunti, yeah - kugwa iwo limodzi ndipo iwo ali mu mnda monga ntchito imodzi kuposa kusamalira mmodzi pa nthawi, ndi zosankha zofanana zogwiritsira ntchito m'magulu ndi zotsatira zobwerera limodzi. Free conversions kuyendetsa imodzi wapamwamba pa nthawi (kuphatikiza zida zimatenga awiri); a ndalama malire ndi zimene zimatsegula processing gulu ndi zikuluzikulu per-fayilo malire, amene ndi zimene amachititsa kusintha archive lonse zothandiza.
