Ukuqonda amandla ngasemva kweApple ProRes

I-ProRes yitekhnoloji ye-codec ephuhliswe yi-Apple ngo-2007 kwi-software yabo ye-Final Cut Pro.Ekuqaleni, iProRes yayifumaneka kuphela kwiikhompyuter zeMac.Ecaleni kwenkxaso ekhulayo yeekhamera zevidiyo kunye nabarekhoda, i-Apple ikhuphe iiplagi ze-ProRes ze-Adobe Premiere Pro, emva kweempembelelo, kunye ne-Media Encoder, evumela abasebenzisi beMicrosoft ukuba bahlele iividiyo kwifomathi yeProRes nabo.

Izibonelelo zokusebenzisa i-codec ye-Apple ProRes kwi-post-production zezi:

Ukunciphisa umthwalo wekhompyuter, ngenxa yoxinzelelo lomfanekiso

I-ProRes icinezela kancinane isakhelo ngasinye sevidiyo ethathiweyo, inciphisa idatha yevidiyo.Ngapha koko, ikhompyuter iyakwazi ukucubungula idatha yevidiyo ngokukhawuleza ngexesha loxinzelelo kunye nokuhlelwa.

Imifanekiso ekumgangatho ophezulu

I-ProRes isebenzisa i-10-bit encoding ukufumana ulwazi olungcono lombala kunye nezinga loxinzelelo olusebenzayo.I-ProRes ikwaxhasa ukudlala iividiyo ezikumgangatho ophezulu kwiifomathi ezahlukeneyo.
Oku kulandelayo kwazisa iintlobo ezahlukeneyo zeefomati ze-Apple ProRes.Ngolwazi malunga "nobunzulu bombala" kunye "nesampulu yechroma", nceda ujonge amanqaku ethu angaphambili-Yintoni i-8-bit, 10-bit, 12-bit, 4:4:4, 4:2:2 kunye ne-4:2:0

I-Apple ProRes 4444 XQ: Inguqulo ye-ProRes ekumgangatho ophezulu ixhasa i-4: 4: 4: imithombo yemifanekiso ye-4 (kuquka iziteshi ze-alpha) enezinga eliphezulu kakhulu ledatha yokugcina inkcukacha kwimifanekiso yoluhlu oluphezulu oluveliswe ngowona mgangatho wedijithali wanamhlanje. abenzi boluvo bomfanekiso.I-Apple ProRes 4444 XQ igcina uluhlu oluguquguqukayo ngokuphindwe kaninzi kunoluhlu oluguquguqukayo lweRec.709 imifanekiso-nakwimeko engqongqo yeziphumo ezibonakalayo ezigqithisileyo, apho ithoni-isikali esimnyama okanye iimbalasane zoluliwe kakhulu.Njengomgangatho we-Apple ProRes 4444, le codec ixhasa ukuya kuthi ga kwi-bits ye-12 kwitshaneli yomfanekiso kunye ne-16 bits ye-alpha channel.I-Apple ProRes 4444 XQ ibonisa izinga ledatha ekujoliswe kuyo malunga ne-500 Mbps ye-4: 4: imithombo ye-4 kwi-1920 x 1080 kunye ne-29.97 fps.

I-Apple ProRes 4444: Inguqulo ye-ProRes ekumgangatho ophezulu kakhulu ye-4: 4: 4: imithombo yemifanekiso ye-4 (kubandakanya iziteshi ze-alpha).Le codec inesisombululo esipheleleyo, i-mastering-quality 4:4:4:4 umbala we-RGBA kunye nokuthembeka okubonakalayo okungaqondakaliyo kwizinto zokuqala.I-Apple ProRes 4444 sisisombululo esikumgangatho ophezulu wokugcina kunye notshintshiselwano lwemizobo eshukumayo kunye nezihlanganisi, kunye nokusebenza okugqwesileyo kunye nejelo le-alpha elilahlekileyo ngokwezibalo ukuya kuthi ga kwiibhithi ezili-16.Le codec ibonisa izinga ledatha eliphantsi ngokuphawulekayo xa lithelekiswa ne-4: 4: 4 HD engaxinzelelwanga, kunye nesantya sedatha ekujoliswe kuyo malunga ne-330 Mbps ye-4: 4: imithombo ye-4 kwi-1920 x 1080 kunye ne-29.97 fps.Ikwabonelela nge-encoding ethe ngqo kunye ne-decoding yazo zombini iifomathi ze-pixel ze-RGB kunye ne-Y'CBCR.

I-Apple ProRes 422 HQ: Inkcazo ephezulu yedatha ye-Apple ProRes 422 egcina umgangatho obonakalayo kwinqanaba eliphezulu elifanayo ne-Apple ProRes 4444, kodwa kwi-4: 2: imithombo ye-2 yemifanekiso.Ngokwamkelwa okuxhaphakileyo kulo lonke ishishini lemveliso yasemva kwevidiyo, i-Apple ProRes 422 HQ ibonelela ngokugcinwa okubonakalayo okungalahlekiyo kowona mgangatho uphezulu wobuchwephesha HD ividiyo enekhonkco elinye HD-Isiginali ye-SDI inokuthwala.Le codec ixhasa ububanzi obugcweleyo, 4:2:2 imithombo yevidiyo kubunzulu be-pixel ye-10-bit ngelixa ihleli ingabonakali ilahleko kwizizukulwana ezininzi ze-decoding kunye nokhowudo kwakhona.I-Apple ProRes 422 HQ ireyithi yedatha ekujoliswe kuyo malunga ne-220 Mbps kwi-1920 x 1080 kunye ne-29.97 fps.

I-Apple ProRes 422: Ikhowudi ye-codec ekumgangatho ophezulu enikezela phantse zonke izibonelelo ze-Apple ProRes 422 HQ, kodwa kwi-66 ipesenti yezinga ledatha ye-multistream kunye nokusebenza kwexesha lokwenyani lokuhlela.I-Apple ProRes 422's izinga lethagethi limalunga ne-147 Mbps kwi-1920 x 1080 kunye ne-29.97 fps.

I-Apple ProRes 422 LT: I-codec ecinezelwe kakhulu kune

I-Apple ProRes 422, kunye ne-70 yepesenti yezinga ledatha kunye

Iipesenti ezingama-30 zeefayile ezincinci.Le codec igqibelele kwiindawo apho umthamo wokugcina kunye nezinga ledatha libaluleke kakhulu.Ireyithi yedatha ye-Apple ProRes 422 LT imalunga ne-102 Mbps kwi-1920 x 1080 kunye ne-29.97 fps.

I-Apple ProRes 422 Proxy: I-codec ecinezele ngakumbi ngakumbi kune-Apple ProRes 422 LT, eyenzelwe ukusetyenziswa kwi-workflows engaxhunyiwe kwi-intanethi efuna amazinga aphantsi edatha kodwa i-Full HD ividiyo.Ireyithi yedatha ekujoliswe kuyo ye-Apple ProRes 422 imalunga ne-45 Mbps kwi-1920 x 1080 kunye ne-29.97 fps.
Itshathi engezantsi ibonisa indlela ireyithi yedatha ye-Apple ProRes ithelekiswa nesisombululo esipheleleyo se-HD esinganyanzeliswanga (1920 x 1080) 4:4:4 12-bit kunye ne-4: 2: 2 i-10-bit yokulandelelana kwemifanekiso kwi-29.97 fps.Ngokwetshathi, kwanokwamkela iifomati zeProRes ezikumgangatho ophezulu- i-Apple ProRes 4444 XQ kunye ne-Apple ProRes 4444, ibonelela ngokusezantsi kokusetyenziswa kwedatha kunoko kwemifanekiso engaxinzelelwanga.