Zonke izinto ze-HD zibukeka kahle kunama-movie-definition-standard noma imibukiso ye-TV, kodwa wazi ukuthi kunamazinga amaningi wekhwalithi ye-HD? Lapho isitolo se-iTunes siqala ukunikeza okuqukethwe ku-HD, sisekela kuphela amazinga angaphansi: 720p. Njengoba izinketho zekhwalithi ephezulu, ezaziwa njenge-1080p no-4K, sezibe yizinga lamadivayisi we-HD nokuqukethwe, isitolo se-iTunes sithuthukisiwe, futhi.
Ukuthola okuqukethwe kokuxazulula okuphezulu akuyona okuzenzakalelayo ku-iTunes, kodwa nakanjani okufunayo. Ngenhlanhla, ngeshintsho esisodwa se-setting, ungaqiniseka ukuthi uthola ama-movie angu-1080p aphezulu kakhulu esitolo se-iTunes.
Umehluko Phakathi kuka 720p, 1080p, ne-4K HD
Izinqumo ezintathu eziphezulu ze-HD-720p, 1080p, ne-4K-zonke ziyizincazelo eziphezulu futhi kungase kube nzima ukuhlukanisa iso iso, kepha ngokuqinisekile akufani. Lokho umehluko kuzobonakala kakhulu uma ubukela okuqukethwe kwe-720p kudivayisi esekela i-4K. Ikhwalithi yesithombe, kuleso simo, ngeke ibe kuhle njengokuqukethwe kuka-1080p kudivayisi ye-1080p noma ku-4K kudivayisi ye-4K.
I- standard 720p HD inikeza isinqumo se-1280 x 720-pixel, kuyilapho amaphakethe angu -1080p ejwayelekile kuma-pixels angu-1920 x 1080. Ifomethi ye- 4K iyaqhubeka nangaphezulu, ihlinzeka izithombe ngokuxazulula amaphikseli angu-4096 x 2160 (ngokuyisisekelo izinqumo ezimbili zifanelekela njenge-4K; enye ingu-3840 x 2160). Akudingeki ukuthi, izithombe ezingu-4K ziqukethe ulwazi oluthe xaxa namaphikseli amaningi, okuholela esithombeni esicacile futhi esiphezulu.
Kuyafaneleka ukwazi ukuthi okuqukethwe okungu-1080p kunamaphikseli angu-2.25 amaningi njengokuqukethwe okungu-720p, kanti i-4K inezinombolo ezingu-4 zamaphikseli we-1080p, amafomethi abukeka kangcono athatha isikhala esiphezulu sesitoreji futhi kuzothatha isikhathi eside ukulanda. Lokhu kusho ukuthi i-Apple's technology compression ikuvumela ukuthi idale amafayela angu-1080p ama-1.5 nje kuphela amakhulu kunamafayela we-720p, ngokusho kwe-Ars Technica, okusho ukuthi okuqukethwe okulandwayo ku-iTunes Store ngokushesha futhi kudinga isitoreji esingaphansi kunalokho ongakulindela.
Amadivayisi we-Apple Asekela i-1080p HD
Njengoba kuphawuliwe ngenhla, ngeminyaka embalwa yokuqala yokusekelwa kwe-HD ku-iTunes, okuqukethwe kwakutholakala kuphela ku-720p. Ngokuvumelana nalolu khetho, amadivayisi we-Apple asekela kuphela okuqukethwe kwe-720p HD. Ngokusungulwa kwe-1080p ku-iTunes, lokho kwashintsha. Njengalokhu kubhala, amadivayisi we-Apple alandelayo asekela i-1080p:
- iPhone 6 Plus , 6S Plus , 7 Plus , 8 Plus , ne- iPhone X
- Isizukulwane sesine nesizukulwane sesithathu se-Apple TV
- Isizukulwane sesithathu se-iPad (esithinta ukubukwa kwe- Retina 2048 x 1536) futhi esisha
- Yonke ideskithophu yesimanje ne-laptop Macs.
Yiqiniso, noma iyiphi i-HDTV esekela i-1080p HD ingabuye ibonise okuqukethwe kuka-1080p kusuka ku-iTunes.
Amadivayisi we-Apple asekela i-4K HD
Nakuba amadivaysi amaningi e-Apple asekela u-1080p, insizakalo encane kakhulu ye-4K. Kunjalo:
Indlela Yokulanda njalo okuqukethwe kwe-1080p HD kusuka ku-iTunes
Njengoba akuzona wonke amadivayisi we-Apple angadlala okuqukethwe kuka-1080p, i-Apple inikeza abasebenzisi ithuba lokuzikhethela uhlobo luni lokuqukethwe kwe-HD abangathanda ukulanda. Awukwenzi lokhu kukhetha ku- iTunes Store uma uthenga noma uqasha ama-movie noma imibukiso ye-TV. Kunalokho, wenza ukhetho kuhlelo lwe-iTunes uqobo. Ukwenza lokhu:
- Qiniseka ukuthi usebenza iTunes 10.6 noma ngaphezulu. Uma kungenjalo, yilande lapha .
- Khona-ke Izintandokazi ezivuliwe (ku-Mac, lokhu kusemenyu ye - iTunes . Ku-PC, ingaphansi kwe- Hlela).
- Ewindini lezintandokazi, chofoza ku- Ukulanda (kwezinye izinguqulo ezindala ze-iTunes, chofoza ku- Isitolo ).
- Esigabeni esiphakathi sefasitela, bheka okukhethwa kukho okubizwa ngokuthi Ukulanda amavidiyo we-HD obukhulu obukhulu . Hlola ibhokisi eduze kwalo.
- Chofoza OK ukuze ulondoloze lolo shintsho .
I-iTunes yakho manje isethelwe ukulanda okuqukethwe kuka-1080p noma nini lapho kungenzeka-kodwa kukhona okukodwa okubanjwe.
Umkhawulo owodwa
Akuwona wonke okuqukethwe ku-iTunes Store etholakala kwifomethi ye-1080p. Ngaphansi kokukhethwa kwamavidiyo we-HD okuphelele okulandwayo kunothi lokuthi amafilimu angu-1080p azokhethwa ngaphezu kwe-720p. Ngaleso silungiselelo, uzothola okuqukethwe okungu-1080p HD noma kunini lapho kutholakala khona. Uma kungenjalo, uzothola i-720p.
Asikho isixwayiso esithile esinikezwa i-iTunes uma izokunikeza i-720p movie, ngakho-ke uma unendaba ukuthi udinga ukuhlola ulwazi mayelana nento oyithandayo. Ukuze uthole lokho, hamba ekhasini le-movie Isitolo seTunes futhi ubuke intengo yaso. Uzobona ukuthi yini i-HD eyenza into ayitholakalayo.
Kuthiwani ngo-4K?
Ukusekelwa kweSitolo se-iTunes kwengezwe amafilimu angu-4K nemibukiso ye-TV ngo-2017, kodwa kuphela i-subset yezinto ezitolo esitholakala ku-4K. Mhlawumbe ngenxa yenani elincane leminikelo ye-4K, akukho ukubeka ku-iTunes ukuqinisekisa ukuthi ulande njalo okuqukethwe kwe-4K. Uma i-Apple ibuyekeza i-iTunes ngaleyo ndlela, le tutorial izovuselelwa, futhi.