ProRes yog lub tshuab codec tsim los ntawm Apple hauv 2007 rau lawv qhov kawg Hlais Pro software.Thaum xub thawj, ProRes tsuas yog muaj rau Mac computers.Nrog rau kev txhawb nqa los ntawm ntau lub koob yees duab video thiab cov kaw lus, Apple tso tawm ProRes plug-ins rau Adobe Premiere Pro, Tom Qab Teebmeem, thiab Media Encoder, tso cai rau Microsoft cov neeg siv hloov kho cov yeeb yaj kiab hauv ProRes hom ib yam nkaus.
Qhov zoo ntawm kev siv Apple ProRes codec hauv kev tsim khoom tom qab yog:
Txo cov haujlwm hauv computer, ua tsaug rau cov duab compression
ProRes me ntsis compresses txhua thav duab ntawm cov yees duab ntes, txo cov ntaub ntawv video.Nyob rau hauv lem, lub computer muaj peev xwm ua cov ntaub ntawv video sai sai thaum lub sij hawm decompression thiab editing.
Cov duab zoo
ProRes siv 10-ntsis encoding kom tau txais cov ntaub ntawv xim zoo dua nrog tus nqi compression zoo.ProRes kuj txhawb kev ua yeeb yaj kiab zoo hauv ntau hom ntawv.
Cov hauv qab no qhia ntau hom Apple ProRes hom.Yog xav paub ntxiv txog "xim qhov tob" thiab "chroma sampling", thov mus saib peb cov ntawv dhau los-Dab tsi yog 8-ntsis, 10-ntsis, 12-ntsis, 4: 4: 4, 4: 2: 2 thiab 4: 2: 0
Apple ProRes 4444 XQ: Qhov zoo tshaj plaws ProRes version txhawb 4: 4: 4: 4 cov duab duab (xws li alpha channels) nrog cov ntaub ntawv siab heev los khaws cov ntsiab lus hauv high-dynamic-ntau cov duab tsim los ntawm niaj hnub zoo tshaj plaws digital. duab sensors.Apple ProRes 4444 XQ khaws cov dynamic ranges ntau zaus ntau dua li qhov dynamic ntau ntawm Rec.709 cov duab-txawm tias tawm tsam qhov kev nruj ntawm kev ua haujlwm pom kev pom, uas nyob rau hauv cov xim dub lossis cov ntsiab lus tseem ceeb tau nthuav dav.Zoo li tus qauv Apple ProRes 4444, qhov codec no txhawb nqa txog 12 khoom ib qho duab channel thiab 16 khoom rau alpha channel.Apple ProRes 4444 XQ nta lub hom phiaj cov ntaub ntawv ntawm kwv yees li 500 Mbps rau 4: 4: 4 qhov chaw ntawm 1920 x 1080 thiab 29.97 fps.
Apple ProRes 4444: Qhov zoo tshaj plaws ProRes version rau 4: 4: 4: 4 duab qhov chaw (xws li alpha channels).Qhov no codec nta tag nrho-kev daws teeb meem, mastering-zoo 4: 4: 4: 4 RGBA xim thiab pom kev ncaj ncees uas yog perceptually indistinguishable los ntawm cov khoom qub.Apple ProRes 4444 yog ib qho kev daws teeb meem zoo rau khaws cia thiab sib pauv cov duab kos duab thiab cov khoom sib txuas, nrog rau kev ua tau zoo heev thiab kev ua lej tsis muaj alpha channel txog li 16 khoom.Cov codec no muaj cov ntaub ntawv tsis tshua muaj txiaj ntsig zoo piv rau qhov tsis muaj 4: 4: 4 HD, nrog lub hom phiaj cov ntaub ntawv tus nqi kwv yees li 330 Mbps rau 4: 4: 4 qhov chaw ntawm 1920 x 1080 thiab 29.97 fps.Nws kuj tseem muaj kev nkag ncaj qha thiab kev txiav txim siab ntawm RGB thiab Y'CBCR pixel hom.
Apple ProRes 422 HQ: Cov ntaub ntawv tus nqi siab dua ntawm Apple ProRes 422 uas khaws cov kev pom zoo ntawm tib theem siab li Apple ProRes 4444, tab sis rau 4: 2: 2 cov duab duab.Nrog rau kev saws me nyuam thoob plaws hauv kev lag luam video tom qab tsim tawm, Apple ProRes 422 HQ muab qhov muag tsis pom kev khaws cia ntawm qhov zoo tshaj plaws HD yees duab uas ib leeg-txuas HD-SDI teeb liab nqa tau.Cov codec no txhawb nqa puv-dav, 4: 2: 2 video qhov chaw ntawm 10-ntsis pixel qhov tob thaum tseem pom qhov tsis pom kev los ntawm ntau tiam neeg ntawm kev txiav txim siab thiab rov encoding.Apple ProRes 422 HQ lub hom phiaj cov ntaub ntawv tus nqi yog kwv yees li 220 Mbps ntawm 1920 x 1080 thiab 29.97 fps.
Apple ProRes 422: Qhov zoo tshaj plaws compressed codec muab ze li ntawm tag nrho cov txiaj ntsig ntawm Apple ProRes 422 HQ, tab sis ntawm 66 feem pua ntawm cov ntaub ntawv tus nqi kom zoo dua multistream thiab lub sijhawm kho kom raug.Apple ProRes 422's lub hom phiaj tus nqi yog kwv yees li 147 Mbps ntawm 1920 x 1080 thiab 29.97 fps.
Apple ProRes 422 LT: Ib qho kev ua haujlwm siab ntau dua li codec
Apple ProRes 422, nrog kwv yees li 70 feem pua ntawm cov ntaub ntawv tus nqi thiab
30 feem pua cov ntaub ntawv me me.Qhov codec no zoo meej rau ib puag ncig uas muaj peev xwm khaws cia thiab cov ntaub ntawv tus nqi tseem ceeb tshaj plaws.Apple ProRes 422 LT lub hom phiaj cov ntaub ntawv tus nqi yog kwv yees li 102 Mbps ntawm 1920 x 1080 thiab 29.97 fps.
Apple ProRes 422 Proxy: Ib qho tseem ceeb tshaj plaws compressed codec tshaj Apple ProRes 422 LT, npaj rau siv hauv offline workflows uas xav tau cov ntaub ntawv tsawg tab sis Full HD video.Apple ProRes 422 Proxy lub hom phiaj cov ntaub ntawv tus nqi yog kwv yees li 45 Mbps ntawm 1920 x 1080 thiab 29.97 fps.
Daim ntawv qhia hauv qab no qhia tau hais tias Apple ProRes 'cov ntaub ntawv tus nqi piv rau qhov tsis txaus siab Full HD daws teeb meem (1920 x 1080) 4: 4: 4 12-ntsis thiab 4: 2: 2 10-ntsis cov duab ua ntu zus ntawm 29.97 fps.Raws li daim ntawv qhia, txawm tias siv cov ProRes hom ntawv zoo tshaj plaws - Apple ProRes 4444 XQ thiab Apple ProRes 4444, muab cov ntaub ntawv siv tsawg dua li cov duab uas tsis muaj duab.
Post lub sij hawm: Apr-22-2022