Uma uke wazama ukusakaza-bukhoma okuqukethwe futhi wahlangabezana nezinkinga zokulungiswa noma imikhawulo, maningi amathuba okuba uphumelele I-Widevine DRM bahileleke. Lolu hlelo lokuphatha amalungelo edijithali (i-DRM) oluthuthukiswe i-Google luyisihluthulelo sokuvikela okuqukethwe ezinkundleni ezifana I-Netflix, i-Disney+, ne-Amazon Prime Video, kodwa futhi kungaba isizathu sokuthi kungani idivayisi yakho ingakwazi ukudlala ngekhwalithi ephezulu.
Kulesi sihloko, sizocubungula ukuthi iyini i-Widevine CDM, ukuthi isebenza kanjani, amazinga ayo okuphepha, nokuthi imaphi amadivayisi ayisekelayo. Uzoqonda ukuthi kungani amanye amadivayisi akwazi ukudlala okuqukethwe kwe-4K kuyilapho amanye ekhawulelwe ku-480p.
Iyini i-Widevine CDM?
I-Widevine Content Decryption Module (CDM) Iwuhlelo lokuphathwa kwamalungelo edijithali (DRM) oluphethwe yi-Google. Inhloso yayo eyinhloko ukuvimbela ubugebengu nokuqinisekisa ukuthi abasebenzisi abagunyaziwe kuphela abangafinyelela okuqukethwe okuthile.
Lolu hlelo lusetshenziswa ezipheqululini ezifana i-Google Chrome, Firefox y I-Edge, nakumadivayisi Android, Android TV y Chromecasts. Ukuhlanganiswa kwayo kuvumela amapulatifomu okusakaza-bukhoma ukuthi avikele amakhathalogi awo ngaphandle kwesidingo sesoftware eyengeziwe.
Isebenza kanjani i-Widevine DRM
I-Widevine isebenza ngezigaba eziningana:
- Ukubethela: Okuqukethwe kwangempela kubethelwe ngesistimu yokubethela ethuthukisiwe ukuze kuvinjelwe ukufinyelela okungagunyaziwe.
- Isicelo selayisensi: Uma umsebenzisi ezama ukudlala okuqukethwe, idivayisi ithumela isicelo kuseva ye-Widevine ukuze iqinisekise izimvume.
- Ukulethwa kwelayisensi: Uma ukuqinisekiswa kuphumelele, iseva ithumela ukhiye wokukhipha ukubethela ukuze uvule okuqukethwe.
- Ukukhiqiza kabusha: Ngokhiye esandleni, idivayisi isusa ukubethela kokuqukethwe futhi ikubonise esikrinini.
Amazinga Okuphepha e-Widevine
I-Widevine isebenza ngamaleveli amathathu okuphepha, anqunywa ukuthi idivayisi ikusingatha kanjani ukukhishwa kwemfihlo:
Umvini omkhulu L1
Izinga eliphakeme lokuvikeleka. Esimweni esinjalo, yonke inqubo yokubethela kanye neyokuqaqwa Kwenzeka ngaphakathi kwendawo yokusebenza ethembekile yephrosesa (TEE). Amadivayisi ahambisana ne-Widevine L1 angadlala okuqukethwe nge-HD, i-Full HD, ngisho ne-4K.
Umvini omkhulu L2
Kuleli zinga, ukususa ukubethela kwenzeka endaweni evikelekile, kodwa ukucutshungulwa kwemidiya kwenziwa ngaphandle kwayo. Lokhu kuyenza ibe ileveli evikeleke kancane futhi abanye abahlinzeki bakhawulela ikhwalithi yokuqukethwe.
Umvini omkhulu L3
Leli izinga eliphansi lokuvikeleka. Lapha, kokubili ukukhishwa kwekhodi nokucutshungulwa kwemidiya kwenzeka ngaphandle kwendawo evikelekile, okwenza kube sengozini yokuhlaselwa. Amadivayisi ane-L3 ngokuvamile akhawulelwe ekulungisweni okungu-480p noma okungu-540p.
Ungahlola kanjani ileveli ye-Widevine yedivayisi yakho
Uma ungaqiniseki ngezinga lokuvikeleka le-Widevine kudivayisi yakho, ungakwazi ukuyihlola kalula ngohlelo lokusebenza Ulwazi lwe-DRM, etholakala ku-Google Play Isitolo. Ngemva kokufaka, kufanele ubheke isigaba se-Widevine CDM futhi uhlole inkambu Izinga Lokuphepha.
Izinkinga ezijwayelekile nge-Widevine DRM
Kunezinkinga ezimbalwa abasebenzisi abangabhekana nazo nge-Widevine DRM:
- Imikhawulo yekhwalithi: Amanye amadivayisi anezingxenyekazi zekhompuyutha ezinamandla angase akhawulelwe ekulungisweni okuphansi ngoba ane-Widevine L3 kuphela.
- Izibuyekezo ezihlulekile: Ngezinye izikhathi, izibuyekezo zesistimu zingabangela idivayisi eyayikade ine-Widevine L1 ukuthi iye ku-L3.
- Ukuhambisana: Akuwona wonke amadivayisi angathuthukiswa ukuze asekele amazinga aphezulu e-Widevine.
Uyibuyekeza kanjani futhi uyixazulule kanjani i-Widevine
Uma uhlangabezana nezinkinga nge I-Widevine, nazi izixazululo:
- Buyekeza i-Widevine: Ku-Google Chrome, yiya ku
chrome://componentsbese usesha “i-Widevine Content Decryption Module” ukuze uyibuyekeze. - Buyekeza isiphequluli sakho: Qiniseka ukuthi usebenzisa inguqulo yakamuva ye Chrome, Firefox o I-Edge.
- Buyekeza i-firmware: Kumadivayisi e-Android, hlola ukuthi isibuyekezo siyatholakala yini kuzilungiselelo zesistimu yakho.
Ngalokhu, manje usukwazi konke odinga ukukwazi nge-Widevine CDM nokuthi ikuthinta kanjani ukudlalwa kokusakaza-bukhoma. Uma idivayisi yakho ihlangabezana nezinkinga zekhwalithi yevidiyo noma ingakwazi ukudlala amasevisi athile, ukuhlola ileveli yakho ye-Widevine kungaba isinyathelo sokuqala esihle sokuxazulula inkinga.
