M4V Izixhobo

Guqula M4V ukuya nokubuya kwiifomathi ezahlukeneyo

Malunga M4V

M4V yi Apple uhlobo MP4 ukuba ungathabatha FairPlay DRM, oko kukuthi, into ethintela abanye abadlali ukususa ukuvula.

Iindlela Ezisetyenziswa Ngazo Eziqhelekileyo

iTunes video
Apple TV content
Protected video

M4V Imibuzo Ebuzwa Rhoqo Ngokuguqula

Yintoni ifayili M4V?

M4V is an MPEG-4 video container format, similar to MP4 but may include DRM.

Ingaba ifayili M4V ifana ne MP4 engaphantsi?

Uyilo lwazo lufana. M4V ikhiwa ukusuka kwi ISO Base Media File Format ibhokisi yobeko i MP4 isebenzisa - umthi we atoms ugcina i media data kunye nesalathisi esitsho apho iframe nganye iqala khona. Le yisizathu sokuba uguqulelo phakathi kwabo luya kuba ngumqolo omtsha kunokuba uphinde ukhowudi: imijelo ikopiwe ngaphezulu engaxutywanga kwaye kuphela umqolo uphinde ubhalwe, othatha imizuzwana nakwifayile yobude bezinto eziluncedo. M4V yi-Apple's MP4, esetyenziswa yi-iTunes ne-Apple TV app yefilimu kunye ne-TV.

Kutheni iimveliso zifika njenge M4V?

Kuba ifomati yindawo yokupakisha yonikezelo lwendawo yokuthenga, idityaniswe neenkqubo zayo, kunye, ngento ehlawulwe, kwi-akhawunti yakho. Oku kwenza ukuba kube lula ngaphakathi kwenkqubo ye-ecosystem kwaye kube nzima ngaphandle kwayo. Iifayile ezingatshixiwanga kwi-akhawunti ziguqula ngokuqhelekileyo; ezikhuselekileyo azikwazi ukuvula nganoma uphi umguquli, onokuthi ube yipropathi emiselweyo yefomati kunokuba ibe ngumda apha.

Kutheni i-browser yam ingadlala ifayili M4V?

Iibrawuzeri zithutha abacoci boluhlu olufutshane lweefomati, kwaye M4V ayikho kuyo - ilayisensi, udidi lwe codec ivumela, okanye ubudala bayo bugcina ngaphandle. Ifayile ayilahli kwaye umdlali we desktop uya kuyivula, kodwa akukho nto oyenzayo kwiphepha izakwenza umkhangeli zincwadi uyenze. Ukutshintsha kwi web- native container yindlela ethembekileyo kuphela yokudlala ngaphakathi. I-DRM-ikhuselwe i-M4V ithengiso ayikwazi ukutshintshwa yinto; kuphela iifayili ezikhuselweyo ze-M4V ziyatshintshwa, kwaye abadlali abangama-Apple bafuna uluhlu olubizwa kwakhona.

Ingaba i M4V iyadlala kwifowuni okanye kwiTV ngaphandle kokutywina ibhetri?

Iinkqubo zekhompyutha Ngokusisiseko i-M4V yi-MP4 — H.264 okanye HEVC nge-AAC — ene-Apple FairPlay DRM ekhethiweyo kunye ne-iTunes isithuba se-metadata.

Ingaba M4V igqityiwe?

Ayihambi kude ngokukhawuleza, kodwa inxalenye yayo yefayile ezintsha igcina incinci kwaye isixhobo esincinci esitsha sikhathazeka ukuxhasa. Iifayile ezikhoyo zihlala zifundeka ixesha elide. Indawo esebenzayo kukuba ukugcina uvimba kule fomati ilungile, ngelixa uqala umsinga womsebenzi omtsha kuyo kuthetha ukwamkela iqela elincinci lesoftware.

Ingaba izihloko ezingaphantsi ngaphakathi kwe M4V zikhethwa, okanye zitshiswe kumfanekiso?

Iyakhethwa, ukuba yafakwa kakuhle. M4V ithatha izihloko zesiphelo njengemijelo yabo ekhethekileyo ecaleni kwevidiyo, ngoko umbukeli angatshintsha ulwimi, aziqhele, okanye aphinde asebenzise isimbo sazo kumdlali oxhasayo. Izihloko zesiphelo ezitywiniweyo zikhona — zii-pixels kuphela kwisakhelo — kodwa zihlala zikhona, kwaye akukho nto ibangela ukuba ukhethe xa isiqulatho sixhasa into eyiyo.

Ingaba ifayili enye M4V igcina iingoma ezininzi zesandi?

Ewe - udidi lwesivakalisi, i-dub neengcamango zonke zingahlala kwifayile efanayo nomdlali otshintshela phakathi kwabo. Izilumkiso ezimbini: ifowuni ezininzi kunye nabadlali betelevisi babonisa kuphela umculo wokuqala kodwa abaninzi bakhona, noguqulelo kwifomati ngaphandle koxhaso oluninzi lwesivakalisi sigcina umculo omnye kwaye sikhupha okunye. Khetha umculo ofuna phambi kokuguqula, kunokuba ufunde emva kokuba omnye uphile. I-M4V igcina abaphawuli besiqendu, umsebenzi wobugcisa kunye nengoma yesihloko esingaphantsi kwisimo i-Apple TV app ilindeleyo, eyona MP4 iqhelekileyo ihlala ilahlekelwa yiyo.

Ingaba ndifuna i-Mac ukuze ndisebenze neefayili M4V?

Ayinaku. Ifomati yaphuma kwi-Apple kwaye yiyo into eyenzayo izixhobo zayo kunye nesoftware ngokumiselweyo, kodwa iifayile zihlala ziqhelekileyo kwaye zifunda kakuhle naphi na ngesixhobo esifanelekileyo. Ukutshintsha apha kwenziwa kumncedisi, ngoko akukho kufakwa kwe-QuickTime, akukho zixhobo ze-Apple kwaye akukho bhokisi ye-platform-ekhethekileyo ye-codec ibandakanyiwe naphi na kwinkqubo.

Ingaba i M4V igcina abaphawuli besithuba?

Iyenza - iinkcazelo ziphila kwi metadata yomgcini, ngoko ushicilelo olude lunokuhanjiswa ngecandelo endaweni yokurhoxisa ibar yokuqhubekeka. Zihlala zijikeleza kwakhona kwifomati enye eyaziyo iinkcazelo kwaye zilahliwe, ngokucothayo, yinye engenakho ukubeka. Ukuba iinkcazelo zibalulekile, oku kufanelekile ukukhangela phambi kokuba ukhethe ifomati yemveliso endaweni ye emva.

Ingaba ukusebenzisa i M4V kudinga ilayisenisi yepateni?

Ayikuko kuwe. Ii codecs ezibandakanyiweyo ziquka iindidi zepateni, kwaye ilayisensi ibekwe ngabantu abathutha ii decoders - ifowuni, umkhangeli zincwadi, indlela yokusebenza - ixesha elide phambi kokuba ifayile ifike kuwe. Yiyo loo nto ifomati ikho kuyo yonke ihardware kwaye kutheni i royalty- free efana nayo ikhona, kwaye ayitshintshanga nto malunga nokuguqula ifayile oyinayo.

Ndingayinika kwakhona igama elipheleleyo lesiqendu endaweni yokuguqula i M4V?

Akukho nanye, kwaye ifanele ukuqonda kutheni: unikezelo luphawu, ngelixa i bytes ngaphakathi zidityaniswe kwifomati ekhethekileyo. Ukuphinda ubize ifayile ivelisa ifayile igama layo lithembisa into imixholo yayo ayinikezeli, kwaye nantoni na evula ifayile okanye ilahlekile ifayile okanye ifunda ngokungachanekanga. Ukuphela kwendlela efutshane kuhlobo olubini oluyinyani ibhokisi efanayo phantsi kwegama elahlukileyo - kwaye nalapho ukuphinda ubhale ngokuchanekileyo kukhuselekile kunegama elahlukileyo.