Indlela I-Compression File Ethinta Ngayo Isithombe Nekhwalithi Yomsindo
Uma ividiyo, isithombe noma umculo igcinwa ngendlela yedijithali umphumela ungaba ifayela elikhulu okunzima ukusakaza futhi isebenzisa inkumbulo eminingi kwikhompyutha noma i-hard drive lapho igcinwa khona. Ngakho-ke, amafayili agxiliwe - noma awenziwe amancane - ngokususa enye idatha. Lokhu kubizwa ngokuthi "ukulahleka" ukucindezela.
Imiphumela Yokucindezeleka
Ngokuvamile, ukubalwa okuyinkimbinkimbi (i-algorithm) isetshenziselwa ukuthi imiphumela yedatha elahlekile ingabonakali iso kwividiyo nezithombe, noma ayikwazi ukuzwakala emculweni. Eminye idatha ebonakalayo elahlekile izuzisa ukungaboni kweso lomuntu ukwenza umehluko omncane ngombala.
Ngamanye amazwi, ngeteknoloji yokucindezela okuhle, akufanele ukwazi ukubona ukulahlekelwa kwesithombe noma ikhwalithi yomsindo. Kodwa, uma ifayela kufanele licindezelwe ukuze lenze libe lincane kakhulu kunefomethi yalo yangempela, umphumela ungase ungabonakali nje kuphela kodwa ungenza imfanelo yesithombe imbi kangangokuthi ividiyo ayikwazi ukubonakala noma umculo uphephile futhi awukho.
I-movie yokucacisa ephezulu ingathatha imemori eminingi - ngezinye izikhathi ngaphezulu kwama-gigabyte amane. Uma ufuna ukudlala leyo movie nge-smartphone, kuzodingeka ukwenze ifayela elincane noma lingathatha yonke imemori yefoni. Ukulahlekelwa kwedatha kusuka ekucindezelweni okuphezulu akubonakali esikrinini esine-intshi.
Kodwa, uma ufuna ukusakaza lelo fayela ku- Apple TV, i-Roku Box, noma idivayisi efanayo , exhunywe ku-TV enkulu yesikrini, ukucindezela ngeke kube khona nje kuphela, kodwa kuzokwenza ividiyo ibonakale isabeka futhi ibe nzima bukela. Imibala ingase ibonakale i-blocky, ingabi bushelelezi. Amaphethelo angase aphikiswe futhi agxumeke. Ukuhamba kungahle kuphazamise noma kugubha. Lena inkinga ngokusebenzisa i-AirPlay kusuka ku-iPhone noma i-iPad. I-AirPlay ayifuni ukusakaza okuvela emthonjeni. Esikhundleni salokho, usakazela ukudlala ocingweni. Imizamo yokuqala ku-AirPlay ivame ukuba yisisulu semiphumela yokucindezelwa kwevidiyo ephezulu.
Izinqumo zokucindezela - Quality vs Saving Space
Ngenkathi kufanele ucabange ubukhulu befayela, kumele futhi ulinganisele ngokugcina ikhwalithi yomculo, izithombe noma ividiyo. Isikhala sakho se-hard drive noma isikhala se-media server singalinganiselwe, kodwa ukushayela kwangaphandle kwangaphandle kuhla ngentengo yamandla amakhulu. Ukuzikhethela kungase kube ngobuningi kanye nekhwalithi. Ungathola amafayela ezinkampani ezicindezelekile kwi-hard drive ye-500 GB , kodwa ungakhetha ukuthi ube namakhulu kuphela amafayela aphezulu.
Ungakwazi ukusetha izintandokazi ukuthi ngabe ifayela elifakiwe noma elilondoloziwe licindezelwa kangakanani. Kukhona izilungiselelo eziningi ezinhlelweni zomculo ezifana ne-iTunes ezikuvumela ukuba usethe izinga lokucindezela izingoma ozifaka. I-Music purs iphakamisa okuphezulu kakhulu ukuze ungalahlekelwa yiziphi izinkolelo zezingoma - 256 kbps ze-stereo okungenani - amafomethi we-HiRes alalelwayo ukuvumela amanani amancane kakhulu. Amasethingi we-jpeg wesithombe kufanele asethelwe usayizi ophezulu ukuze alondoloze ikhwalithi yesithombe. Ama-movie we-High definition kufanele asakazwe kufomethi yawo yedijithali egcinwe ekuqaleni njenge-h.264, noma i-MPEG-4.
Umgomo ngokucindezela ukuthola ifayela elincinci ngaphandle kokulahlekelwa kwesithombe kanye / noma idatha yomsindo ebonakalayo. Awukwazi ukungahambi kahle ngamafayela amakhulu nokucindezela okuncane ngaphandle kokuthi uphume isikhala.