Vala isikhangiso

Ngohlelo olusha lokusebenza lwe-Mac OS X Mountain Lion kuza umsebenzi okade ulindelwe futhi uceliwe i-AirPlay Mirroring, enikeza isibuko sesithombe nokusakazwa komsindo kusuka ku-Mac nge-Apple TV kuya kumabonakude. Nokho, njengoba kuvezwe ku-Mountain Lion Developer Beta, lesi sici sizotholakala kuphela kumamodeli athile. Lokhu kungaba ukudumala okukhulu kubasebenzisi abathenga i-OS X entsha futhi imishini yabo emidala izobe iphuthelwa yilesi sici. Izotholakala kuphela uma une-iMac, i-MacBook Air noma i-Mac Mini yemodeli yamaphakathi no-2011 kanye ne-MacBook Pro yasekuqaleni kuka-2011.

Emasontweni asanda kwedlula, kuye kwavela izinkolelo-mbono eziningi zokuthi kungani i-Apple inqume ukubeka leyo mikhawulo. Abanye babo bathi kwakuyisu lokwenza abasebenzisi bathenge idivayisi entsha. Abanye bathi ubuchwepheshe obukhethekile be-DRM, okuyizizukulwane zakamuva kuphela zamaphrosesa avela ku-Intel, nabo budlala indima kulokhu. Nokho, iqiniso libonakala likwenye indawo. Isizathu sokuthi udinga okungenani i-Mac yango-2011 ukuze usebenzise i-AirPlay Mirroring ingoba ngokwenza ama-graphic chips amadala awakwazi ukuhambisana futhi awakwazi ukunikeza umphumela ofanayo newakamuva. I-AirPlay Mirroring idinga umbhalo wekhodi we-H.264 ukuze usebenze ngokuqondile ku-chip yezithombe, okuyikhono lokuminyanisa ividiyo ngokuqondile ekhadini lezithombe ngaphandle kwesidingo samandla okucubungula anamandla.

USid Keith, umthuthukisi wohlelo lwe-AirParrot, olungasakaza izithombe ku-Apple TV, ukuqinisekisile ukuthi ngaphandle kokusekelwa kwehadiwe, i-Mirroring idinga kakhulu, ikakhulukazi ku-CPU, futhi inganciphisa uhlelo lube sezingeni i-Apple engeke ilivumele. Futhi akuwona ama-Mac kuphela angakwazi ukusebenzisa i-AirPlay ngaphambi kuka-2011. Ngisho namadivayisi e-iOS, kufanele okungenani ube ne-iPhone 4S ne-iPad 2 ukuze usebenzise i-AirPlay Mirroring. Amamodeli amadala nawo awanawo amandla ombhalo wekhodi we-H.264 kuma-chips wawo wezithombe.

[yenza isenzo=”citation”]Ngaphandle kosekelo lwehadiwe, i-Mirroring ifuna kakhulu ikakhulukazi ku-CPU futhi inganciphisa uhlelo lube sezingeni i-Apple engeke ilivumele.[/do]

Futhi, inhloko yethimba lokuthuthukisa i-AirParrot, uDavid Stanfill, waphawula ukuthi isizukulwane sakamuva kuphela samaphrosesa e-Intel esihlangabezane nemithetho eqinile ye-Apple yobuchwepheshe be-AirPlay. Ngemuva kokuthi sonke isithombe sisendaweni ye-chip yehluzo, ingxenye edinga kakhulu ukulungisa ukulungiswa (yingakho i-Apple incoma isilinganiso esingu-1:1 se-AirPlay esithombeni esisakazwayo), ukuguqulwa kwemibala isuka ku-RGB iye ku-YUV kanye ukuqoshwa kwangempela ekhadini lemifanekiso. Kamuva, kuyadingeka kuphela ukudlulisa ukusakazwa kwevidiyo okuncane ku-Apple TV.

Nokho, leli qiniso alisho ukuthi ukudluliswa kwevidiyo ngaphandle kombhalo wekhodi we-H.264 ku-chip yezithombe akunakwenzeka. Okudingayo i-multi-core processor. Uhlelo lokusebenza lwe-AirParrot luwubufakazi obuhle kakhulu. Okubi kakhulu ukushisisa okuphawuleka kakhulu phakathi nale nqubo. Futhi, njengoba sazi, i-Apple ayikuthandi lokho. "Lapho sithuthukisa i-AirParrot, sasihlala sigxile kakhulu kumthwalo we-CPU," kuqhuba uStanfill. Futhi wengeza ukuthi umbhalo wekhodi we-H.264 uyashesha ngokwanele kunoma iyiphi iphrosesa yama-multi-core. Kodwa ukukala kwesithombe nokuguqulwa kombala yingxenye ekhokhisa kakhulu intela.

Nokho, akulona nje iqiniso lokuthi noma ngabe umsebenzisi une-Mac entsha noma endala, uzosebenzisa i-AirPlay Mirroring noma i-AirParrot. Izisetshenziswa zenethiwekhi yomsebenzisi nazo zizobaluleka. Isibonelo, ukuze udlale ividiyo eshelelayo kusuka kusidlali sewebhu ngaphandle kwempendulo eyengeziwe phakathi komsindo nevidiyo, okungenani kunconywa i-AirPort Express noma irutha ye-N yekhwalithi ephezulu. Kuzophinde kuncike kakhulu ekulayisheni kwenethiwekhi yomsebenzisi. Ngakho ukusebenzisa i-BitTorrent ngesikhathi se-AirPlay Mirroring cishe akuwona umqondo omuhle kakhulu.

Kubanikazi bamamodeli e-Mac amadala kuno-2011 abangeke bakwazi ukusebenzisa ngokuqondile i-AirPlay Mirroring ku-OS X Mountain Lion entsha, kusenayo inketho yokusebenzisa izinhlelo zokusebenza zezinkampani zangaphandle ezifana ne-AirParrot, esebenza ngama-US$9,99 emishini ene-Snow. Ingwe nangaphezulu.

Umthombo: CultofMac.com

Author: UMartin Pučik

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