M4V Zida

M4V 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 kusinthidwa pakati pawo nthawi zambiri ndi rewrap kuposa kubwezeretsa: ma streams amakopedwa mosakhudzana ndipo wolembayo amasinthidwa, zomwe zimatenga masekondi ngakhale pa fayilo yazaka zambiri. M4V ndi mtundu wa Apple wa MP4, ntchito ndi iTunes ndi Apple TV app kwa mafilimu ndi TV ziwonetsero za.

Chifukwa cha mtunduwu ndi wogulitsa wogulitsa, wogwirizana ndi mapulogalamu ake, komanso, kwa zotsatsa zolipira, ku akaunti yanu. Izi ndizo zomwe zimapangitsa kuti zikhale zosavuta m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko omwe ali m'maiko

Mawebusayiti amatumiza decoders kwa mndandanda wocheperako wa mafomu, ndipo M4V 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. DRM-kuteteza M4V kugula sangakhale anasinthidwa ndi chilichonse; okha unprotected M4V owona ndi convertable, ndi non-Apple osewera nthawi zambiri ayenera kuwonjezeka anasintha dzina.

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. Structurally M4V ndi MP4 - H.264 kapena HEVC ndi AAC - ndi osankhika Apple FairPlay DRM ndi iTunes bokosi metadata.

Sikuti ikuchoka mwamsanga, koma mnda wa mafayilo atsopano umakula ndi zida zina zowonjezera zomwe zimathandiza. Fayilo yoponya imakhala yowerenga kwa nthawi yaitali. Mtengo wogwira ntchito ndi kuti kusamalira archive mu mtunduwu ndi bwino, koma kukhazikitsa ntchito yatsopano m'njira imeneyi kumatanthauza kuvomereza mnda wa mapulogalamu omwe akuwonjezeka.

Chosankha, ngati adawonjezeredwa bwino. M4V 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 sichingakhale chifukwa chosankha pamene chonyamula chimathandizira chinthu choyenera.

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. M4V amasunga Chapter olemba, ntchito zojambulajambula ndi subtitle nyimbo mu mawonekedwe a Apple TV app amayembekezera, amene MP4 mosavuta nthawi zambiri amawononga.

No. The mtundu anatuluka Apple ndi zimene zake zipangizo ndi mapulogalamu kupanga mwa default, koma mavidiyo okha ndi osiyana ndi kuphunzira bwino kumeneko ndi choyenera chida. Kusinthanitsa pano chimachitika pa seva, kotero palibe QuickTime kukhazikitsa, palibe Apple hardware ndi palibe platform-osiyana codec pakiti ndi kukhudzana kulikonse m'njira.

Ndikofunika — masamba ali m'ma metadata a kontena, kotero kujambula kotalika kungagwiritsidwe ntchito ndi gawo, osati ponyamula mbale ya progress. Amatha kupulumutsidwa ndi kusinthidwa ku mtundu wina wodziwa masamba ndipo amatulutsidwa, mopanda mawu, ndi wina amene alibe malo oti aziika. Ngati masamba ndi ofunika, ndi bwino kuonetsetsa kuti musanasankhe mtundu wa kutulutsa, osati pambuyo pake.

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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.