Iicodec zevidiyo bezisoloko zithe gqolo okoko kwafika iikhompyuter kunye nomthamo wazo wemultimedia wokudlala iifayile zevidiyo. Ngokuqinisekileyo abo kuni babesele bexukuxa ngePC ngeminyaka yee-90s, uya kuqhelana nabo bonke abathe bavela kude kube namhlanje, ngelo xesha sasisele sincwasile Izigqibo ze-8K kunye ne-10K kamabonakude. Kodwa, ngaba kukho umahluko phakathi kwezimbini zezona zidumileyo esinazo namhlanje?
Iikhowudi ezimbini zokuzilawula zonke
Ngokuqinisekileyo asithethi nto intsha ongayazi ukuba siyayivuma loo nto i-codec ye-H.264 yeyona nto idumileyo esinokuyifumana ngoku Kuyafana nakuwuphi na umxholo esiwuguqulayo okanye esiwudalayo ukuba udlale kwikhompyuter, iselfowuni, ithebhulethi okanye nantoni na. Nokuba yeyiphi inkqubo oyisebenzisayo, ngokuqinisekileyo uya kuthumela ngaphandle ifayile ye.mp4 enekhowudi ye-H.264. Oku kungenxa yokuba ifomati egxininise kakhulu kwinkcazo ephezulu kwaye ikwazi ukusebenza kunye naluphi na uhlobo lwe-hardware kwi-HD, i-FullHD (i-1080p) okanye i-4K izigqibo kwaye ayithathi i-bandwidth eninzi xa isasazwa.
Ngoku, malunga neshumi leminyaka eyadlulayo, yayiza kuba yintoni (kwaye sicinga ukuba iya kuqhubeka nokuba) indlalifa yakhe yavela, H.265, eyaziwa ngokuba HEVC okanye High Efficiency Video Coding kwaye ayisebenzi kuphela kwi-HD, i-FullHD (i-1080p) kunye ne-4K izigqibo, kodwa nakwi-8 kunye ne-10K, iqinisekisa amandla oxinzelelo onokufikelela kwi-50% ye-H.264 ngamaxesha amaninzi. Umzekelo, imuvi ye-4,3GB kwifomathi yeDVD ingayishiya kuma-megabytes angama-650 kuphela, xa kuthelekiswa neegigabyte ezingaphezu kwesinye kwi-H.264.
Oko kukuthi, kunye nomgangatho we-H.265 singadlala isiginali ye-8K ephilayo kwisixhobo esiphathwayo esinonxibelelwano oluqhelekileyo lwe-intanethi, Ayisiyonto ikhawulezayo, yiyo loo nto, njengoko unokucinga, ibe yeyona ndlela ilungileyo yokwandisa iifomati zevidiyo kungekudala.
Kutheni sisasebenzisa i-H.264?
Nangona kunjalo, into kufuneka yahlule iifomati ezimbini ze-H.264 ukuqhubeka zisetyenziswa ngaphezulu kwe-H.265 xa Ngeyesibini siya kufumana isiqingatha sefayile njengobunzima kwaye ngamaxesha amaninzi, kunye nomgangatho omncinci nokuthembeka kwantlandlolo. Kwaye impendulo kufuneka ifunyanwe kwi-hardware efunekayo ukuphumeza ngokukhawuleza umsebenzi wokunciphisa loo vidiyo kwaye emva koko uyidlale.
Ngaloo ndlela, kulula kwi-hardware (ephantsi) yesixhobo sokudlala ividiyo ukuze ikwazi ukusebenza ngefayile kwi-H.264 kunenye kwi-H.265, efuna amandla amaninzi okwenza umsebenzi. oko kuya kusibonisa kwiscreen. ukuba uyakhumbula, Kwenzeka into enje kuthi xa ifomati ye-.mkv yasasazeka, ukuba kwakungenakwenzeka ukuyisungula kuyo nayiphi na ikhompyutha okanye isixhobo esiphathwayo. Amandla okusebenza amaninzi ayefuneka kune-a .avi okanye izinto ezifanayo zexesha elifanayo.
Ukwenza ividiyo kwi-H.265 kufuna loo mandla ongezelelweyo leyo, okwangoku, imarike ayiceli ngenxa yokuba nge-H.264 sinokungaphezulu kokwaneleyo: ayithathi indawo eninzi okanye i-bandwidth, nangona umxholo we-4K, ilawulwa ngokufanelekileyo kwi-100% yezixhobo zangoku kwaye igcina intlonipho esemgangathweni kowokuqala. Enye into iya kuba kuxa sifuna ukutsiba ukuya kwi-8K, okanye kwi-10K kwaye, ke ewe, indawo encinci ehlala kuyo ngenxa yoxinzelelo olukhulu, kunye nokuqhubela phambili kwezixhobo eziyimfuneko kuzo zonke iindawo (iifowuni eziphathwayo, iitafile, iseti. -ibhokisi ephezulu, njl.), yenza ukwandiswa kwaloo H.265 ibe yinyaniso.