Ukuthuthukisa Ikhwalithi Yokusakaza Ngama-Head-End Processors: Ukukhulisa Ukusebenza Kahle Kokukhipha

Ezweni lokusakaza elihlala lishintsha, ukuletha okuqukethwe kwekhwalithi ephezulu kubabukeli kubalulekile. Ukuze kufezwe lokhu, abasakazi bathembele kubuchwepheshe obuthuthukisiwe njengezinhlelo ezisebenza kahle kanye nabaprosesa abaphambili. Lawa madivayisi anamandla adlala indima ebalulekile ekuqinisekiseni ukudluliswa okungenamthungo kwezimpawu zokusakaza. Kule bhulogi, sizohlola ngokujulile amakhono amangalisayo abaprosesa abaphambili, sihlole ukuthi bathuthukisa kanjani ikhwalithi yokuphuma futhi bathuthukise ulwazi lwababukeli lulonke.

Funda ngamaprosesa e-head-end:

Inhliziyo yanoma yimuphi umsebenzi wokusakaza kukhona indawo engaphambili, lapho izimpawu zomsindo nezevidiyo ezingenayo zidlula ochungechungeni lwezinqubo ezibalulekile ngaphambi kokufinyelela ezikrinini zezilaleli. Kulesi sikhathi sedijithali, ama-head-end processors ayitshe lesisekelo sale misebenzi, eguqula izimpawu ezingavuthiwe zibe okuqukethwe okulungele ukusakazwa.

Thuthukisa ikhwalithi yesiginali:

Iprosesa engaphambili ifakwe ubuchwepheshe obusezingeni eliphezulu ukuze ithuthukise futhi ithuthukise isignali yokufaka. Laba baprosesa bafaka ama-algorithms e-codec athuthukile anciphisa umsindo, athuthukise ukunemba kombala futhi athuthukise ukucaca kwesithombe ukuze athuthukise kakhulu ikhwalithi yokusakaza. Ngokuhlaziya ngobuhlakani nokucubungula idatha yevidiyo nomsindo, abaprosesa abaphezulu baqinisekisa ukuthi ababukeli bathola okuqukethwe ngendlela yakho engcono kakhulu, ngaphandle kokuphazamiseka kanye nezinto zobuciko.

Lungiselela ukusebenza kahle kwe-bitrate:

Esinye isici esibalulekile sama-headend processors yikhono lawo lokucindezela amasignali ngaphandle kokulahlekelwa ikhwalithi. Ngokusebenzisa ubuchwepheshe bokucindezela obusebenzayo, lawa madivayisi anganciphisa usayizi wefayela levidiyo ngenkathi egcina ukwethembeka kokubona. Le nqubo ivumela abasakazi ukuthi badlulise okuqukethwe okunencazelo ephezulu ngaphandle kokucindezela iziteshi zabo zokuxhumana, ngaleyo ndlela basebenzise ngempumelelo izinsiza ze-bandwidth ezitholakalayo.

Ukuguqulwa kwekhodi okuguquguqukayo:

Iiprosesa ye-head-endihlinzeka ngamakhono okuguqula ikhodi ukuze kuthuthukiswe ukuhambisana okuhle kakhulu kumadivayisi amaningi nezikrini. Njengoba kusabalala amapulatifomu ahlukahlukene edijithali, kubalulekile ukuqinisekisa ukuthi okuqukethwe kufinyelela izithameli zakho ngefomethi efanele. Laba abacubungula balungisa ngokuguquguqukayo amapharamitha okufaka ikhodi njengokulungiswa kanye ne-bitrate ngokusekelwe emandleni edivayisi, ukuqinisekisa isipiliyoni sokubuka esingcono kakhulu kunoma yisiphi isikrini, kusukela kuma-smartphone kuya kuma-TV amakhulu.

Ukuqondisa okuhlakaniphile kanye nokuphindaphinda:

Ukuze badlulise iziteshi eziningi ngempumelelo ngasikhathi sinye, ama-head-end processors asebenzisa izindlela ezithuthukisiwe zokuqondisa kanye nezindlela zokuphindaphinda. Lezi zinqubo zivumela opharetha ukuthi bahlukanise kahle i-bandwidth, baphathe inani elikhulu lokufaka futhi baqinisekise ukuguquka okubushelelezi phakathi kwemithombo ehlukahlukene yokuqukethwe. Ngokuphatha ngokuhlakanipha ukugeleza kwesignali, ama-head-end processors athuthukisa kakhulu ukusebenza kahle kwenethiwekhi ngenkathi eqeda ukuphazamiseka kwesignali.

Ikusasa lokusakaza:

Njengoba isimo sokusakaza siqhubeka nokuguquka ngesivinini esikhulu, abaprosesa abaphezulu badlala indima ebalulekile ekuvumela abasakazi ukuthi bahlale besezingeni eliphezulu lobuchwepheshe. Amadivayisi aqinisekisa ukwesekwa kwezindinganiso ezintsha ezifana ne-Ultra HD kanye namafomethi omsindo acwilisayo, okuvumela abasakazi ukuthi banikeze okuhlangenwe nakho okuqinisekile esikhathini esizayo kubabukeli abasebenzisa intuthuko yakamuva yezobuchwepheshe.

Ngokufigqiwe:

Embonini yokusakaza yanamuhla encintisana kakhulu, ukuletha okuqukethwe kwekhwalithi ephezulu kubalulekile ekudonseleni ukunaka kwezilaleli zakho.Amaprosesa ekhandazingamathuluzi okufeza lokhu, ukwenza ngcono ukusebenza kahle kokukhipha, ukuthuthukisa ikhwalithi yesiginali kanye nokuthuthukisa ulwazi lokubuka lulonke. Ngokusebenzisa amandla ala madivayisi athuthukile, abasakazi bangahlala phambili, banikeze okuqukethwe okuheha izithameli futhi kubasize bakhe ukuxhumana okuhlala njalo endaweni yemidiya yedijithali ehlala ishintsha.