I-ProRes ubuchwepheshe be-codec obuthuthukiswe i-Apple ngo-2007 ngesofthiwe yabo ye-Final Cut Pro.Ekuqaleni, i-ProRes yayitholakala kumakhompyutha we-Mac kuphela.Ngokuhambisana nokuxhaswa okukhulayo ngamakhamera wevidiyo amaningi namarekhodi, i-Apple ikhiphe ama-plug-ins e-ProRes e-Adobe Premiere Pro, After Effects, kanye ne-Media Encoder, okuvumela abasebenzisi beMicrosoft ukuthi bahlele amavidiyo ngefomethi ye-ProRes futhi.
Izinzuzo zokusebenzisa i-codec ye-Apple ProRes ekukhiqizeni ngemuva yilezi:
Umthwalo wekhompiyutha owehlisiwe, ngenxa yokucindezelwa kwesithombe
I-ProRes icindezela kancane ifreyimu ngayinye yevidiyo ethwetshuliwe, inciphisa idatha yevidiyo.Ngokulandelayo, ikhompuyutha iyakwazi ukucubungula idatha yevidiyo ngokushesha ngesikhathi sokuwohloka nokuhlela.
Izithombe zekhwalithi ephezulu
I-ProRes isebenzisa umbhalo wekhodi we-10-bit ukuze ithole ulwazi lombala olungcono ngezinga lokucindezela elisebenzayo.I-ProRes iphinde isekele ukudlala amavidiyo asezingeni eliphezulu ngamafomethi ahlukahlukene.
Okulandelayo kwethula izinhlobo ezahlukene zamafomethi we-Apple ProRes.Ukuze uthole ulwazi mayelana "nokujula kombala" kanye "nesampula ye-chroma", sicela uhlole izindatshana zethu ezedlule-Yini i-8-bit, 10-bit, 12-bit, 4:4:4, 4:2:2 kanye no-4:2:0
I-Apple ProRes 4444 XQ: Inguqulo yekhwalithi ephezulu kakhulu ye-ProRes isekela imithombo yesithombe engu-4:4:4:4 (okuhlanganisa namashaneli e-alpha) enenani ledatha eliphezulu kakhulu ukuze kulondolozwe imininingwane ezithombeni ezisezingeni eliphezulu ezikhiqizwe idijithali yezinga eliphezulu kakhulu lanamuhla. izinzwa zesithombe.I-Apple ProRes 4444 XQ igcina ububanzi obuguquguqukayo izikhathi eziningana kunobubanzi obuguquguqukayo be-Rec.709 izithombe—ngisho ngokumelene nobunzima bokucutshungulwa kwemiphumela yokubuka eyeqisayo, lapho okumnyama kwesikali sethoni noma okuvelele kunwetshwa kakhulu.Njenge-Apple ProRes 4444 evamile, le codec isekela amabhithi angu-12 ngesiteshi sesithombe ngasinye namabhithi angu-16 esiteshi se-alpha.I-Apple ProRes 4444 XQ ifaka inani ledatha eliqondiwe cishe elingama-500 Mbps yemithombo engu-4:4:4 ku-1920 x 1080 kanye no-29.97 fps.
I-Apple ProRes 4444: Inguqulo ye-ProRes yekhwalithi ephezulu kakhulu ye-4: 4: 4: imithombo yesithombe ye-4 (kuhlanganise neziteshi ze-alpha).Le khodekhi inokulungiswa okugcwele, okuyikhwalithi engu-4:4:4:4 RGBA yombala nokwethembeka okubonakalayo okungaqondakali kokubalulekile.I-Apple ProRes 4444 iyisixazululo sekhwalithi ephezulu yokugcina kanye nokushintshisana ngemifanekiso enyakazayo nezinhlanganisela, ngokusebenza okuhle kakhulu kanye nesiteshi se-alpha esingalahleki ngokwezibalo esifika kumabhithi ayi-16.Le codec inenani ledatha eliphansi ngokumangalisayo uma liqhathaniswa nokungacindezelwa okungu-4:4:4 HD, ngezinga ledatha eliqondiwe cishe elingu-330 Mbps yemithombo engu-4:4:4 ku-1920 x 1080 kanye no-29.97 fps.Iphinde inikeze umbhalo wekhodi oqondile kanye nokuqoshwa kwawo womabili amafomethi ephikseli e-RGB kanye ne-Y'CBCR.
I-Apple ProRes 422 HQ: Inguqulo ephezulu yezinga ledatha ye-Apple ProRes 422 egcina ikhwalithi yokubuka ezingeni eliphezulu elifanayo ne-Apple ProRes 4444, kodwa yemithombo yesithombe engu-4:2:2.Ngokutholwa okusabalele kuyo yonke imboni yokukhiqizwa kwamavidiyo, i-Apple ProRes 422 HQ inikezela ngokulondolozwa okungalahleki okubonakalayo kochwepheshe bekhwalithi ephezulu kakhulu HD ividiyo engaphathwa isixhumanisi esisodwa HD-Isiginali ye-SDI.Le khodekhi isekela ububanzi obugcwele, imithombo yevidiyo engu-4:2:2 ekujuleni kwe-pixel eyi-10 ngenkathi ihlezi ingalahleki ezizukulwaneni eziningi zokuqopha nokubhala kabusha ikhodi.Izinga ledatha eliqondiwe le-Apple ProRes 422 HQ licishe libe ngu-220 Mbps ku-1920 x 1080 kanye no-29.97 fps.
I-Apple ProRes 422: Ikhodekhi ecindezelwe yekhwalithi ephezulu enikeza cishe zonke izinzuzo ze-Apple ProRes 422 HQ, kodwa kumaphesenti angu-66 wezinga ledatha yokusebenza okungcono nakakhulu kokuhlela kwesikhathi sangempela.Izinga eliqondiwe le-Apple ProRes 422 licishe libe ngu-147 Mbps ku-1920 x 1080 kanye no-29.97 fps.
I-Apple ProRes 422 LT: Ikhodekhi ecindezelwe kakhulu kune
I-Apple ProRes 422, cishe ngamaphesenti angama-70 wezinga ledatha kanye
Amaphesenti angama-30 osayizi bamafayela amancane.Le codec ilungele izindawo lapho umthamo wesitoreji nezinga ledatha kubaluleke kakhulu.Izinga ledatha eliqondiswe yi-Apple ProRes 422 LT licishe libe ngu-102 Mbps ku-1920 x 1080 kanye no-29.97 fps.
Ummeleli we-Apple ProRes 422: Ikhodekhi ecindezelwe kakhulu kune-Apple ProRes 422 LT, ehloselwe ukusetshenziswa ekuhambeni komsebenzi okungaxhunyiwe ku-inthanethi okudinga amanani aphansi wedatha kodwa ividiyo ye-HD Egcwele.Izinga ledatha eliqondiwe lommeleli we-Apple ProRes 422 cishe lingama-45 Mbps ku-1920 x 1080 kanye no-29.97 fps.
Ishadi elingezansi libonisa ukuthi izinga ledatha ye-Apple ProRes liqhathaniswa kanjani nesinqumo se-Full HD engacindezelwe (1920 x 1080) 4:4:4 12-bit kanye no-4:2:2 10-bit ngokulandelana kwesithombe ku-29.97 fps.Ngokusho kweshadi, ngisho nokwamukela amafomethi we-ProRes asezingeni eliphakeme kakhulu- I-Apple ProRes 4444 XQ ne-Apple ProRes 4444, inikeza ukusetshenziswa kwedatha okuphansi kakhulu kunaleyo yezithombe ezingacindezelwanga.
Isikhathi sokuthumela: Apr-22-2022