3GP → Image

Guqula Eyakho 3GP kuya Image amafayela kalula

Khetha amafayela akho

noma cindezela bese ususa amafayela akho lapha

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Guqula amafayela afinyelela ku-1 GB mahhala, abasebenzisi be-Pro bangaguqula amafayela afinyelela ku-100 GB; Bhalisa manje

Ukulayisha

Indlela yokuguqula 3GP kuya Image

Isinyathelo 1: Layisha eyakho 3GP amafayela usebenzisa inkinobho engenhla noma ngokuhudula bese uphonsa.

Isinyathelo 2: Chofoza inkinobho ethi 'Guqula' ukuze uqale ukuguqulwa.

Isinyathelo 3: Landa i-version yakho Image amafayela

3GP kuya Image Imibuzo Evame Ukubuzwa Yokuguqulwa

Ngiyikhipha kanjani ifreyimu ngayinye kusuka ku 3GP njenge Image izithombe?

Layisha phezulu ihele 3GP futhi umguquli ubonisa isikhethi sefreyimu-sokukhipha: nganoma iyiphi ifreyimu ye-Nth, amafreyimu ezikhathini ezicacisiwe, noma ifreyimu eyodwa ngesekondi. Ifreyimu ngayinye ekhethiwe ikhishwa ku-3GP umsinga wevidiyo, ibhalwe njengehele Image elilodwa, futhi iqoqwe njenge-ZIP yokulayisha ngezansi. I-3GP iyibhokisi le-3GPP elijwayelekile lefoni ephathekayo, lapho ividiyo idinga ukuhambisana ne-176x144 screen ne-2G data plan. Isithombe lapha siyinjongo ejwayelekile: umguquli ukhetha ifomethi ye-raster efanele umsuka endaweni yokucindezela enye kuwe.

Ingabe ngithola ama-Image amafreyimu ngaphandle kwesihloko esingezansi?

Uma nje i 3GP ayizange itshetshezwe, ngoba 3GP ayinaso isingeniso esikhethiwe sohluzo esikhethiwe sokuvala. Noma yini e3GP ebonisa esigabeni isithombe, ngakho i Image ngayinye ikhiqiza ukukhishwa futhi akukho sinqumo esisusayo ngemuva. lapho ihele elihlukile lesihloko likhona eduze kwevidiyo, khipha kusuka emthonjeni ogcina ama-2 ahlukene futhi ama-frames aphuma ahlanzekile. I-3GP iphele ngezinhlamvu eziphansi kanye nesandi sokukhuluma esisezingeni eliphansi; ukuphakama kwayo ngeke kubuyisele imingwane engazange ithathwe.

Ingabe i-Image ixhasa ukubukhali?

Ifomethi ikhona, kodwa umsuka awuna-alpha ukuwunika - amafreyimu wevidiyo namakhasi ashicilelwe agcwele ukucasuka, ngakho wonke ama-pixel afika aqinile. Isixhumanisi se-alpha sisebenza ngemuva: kusho ukuthi ungasakaza isiqephu se Image ngemuva ngaphandle kokushintsha ifomethi futhi. Ukukhetha isiphetho ngokuzenzakalela kusho ukuthi uthola ifayela elivula noma kuphi ngaphandle kokucabanga ngamadivaysi angaphambili.

Ingabe amafayela Image azokhula kangako?

Okuningi kunalokho okubonayo, ngoba Image igcina wonke ama-pixel ngokugcwele kungafani nokulinganisela. I-1080p ihlala ifinyelela ku-2-5 MB futhi i-4K ihlala ifinyelela ku-6-15 MB, ngakho-ke ukukhishwa okude kusebenza ngokushesha. Lokhu kuyibhizinisi elilungile uma izithombe zidla ukukhiqizwa okuqhubekayo, futhi okubi uma zihamba ngqo kwikhasi le-web. Iphutha lemithombo yezithombe ku JPG, imithombo ekhanyayo noma eqinile iphutha ku PNG, nama-multi-page sources akhiqiza isithombe esisodwa ngakhasi.

Ngasiphi isixazululo izithombe ezikhishwayo Image ziphuma khona?

Isinqumo esifanayo njengesisuka ku 3GP: 1080p 3GP ikhiqiza amafreyimu angama-1920x1080 Image, 4K 3GP ikhiqiza amafreyimu angama-3840x2160 Image. Umguquli awukhuphuli noma awukhuphuli isampula — ama-pixel alinganiselwa ngokuqondile kusuka ku-frame e-decoded. Sebenzisa /resize-image/ ngemuva kokukhishwa uma ufuna amathumbnails amancane.

Ingabe ngizokhipha ifreyimu ngayinye ye 3GP njenge Image?

Yebo, kodwa qaphela inani lefayela - i-30 fps 1-minithi 3GP ikhiqiza amafreyimu angama-1,800 Image. Siwafaka ngaphakathi kohele olulodwa lwe-ZIP ngokuzenzakalela. Kweziclips ezide, khetha "1 ngesekondi" esisetshenzisiwe (amafreyimu angama-60 ngomzuzu) noma khetha ama-timestamps athile. Ihora lama-3GP nganoma iyiphi ifreyimu lizokhiqiza izithombe ezingu-~100,000 Image.

Ingabe ama-Image amafreyimu azogcina umbala 3GP wokuhlanganiswa?

Yebo — umbala uqokwa nge-matrix efanayo etholakalayo 3GP umsuka we-stream ubonisa (BT.709 for HD, BT.2020 for 4K HDR). Ama-HDR asuka ku-tone-mapped ku-SDR uma ekhishwa ku-Image angagcina ama-HDR pixel ranges ngokusemthethweni (JPG, PNG-8). Cindezela i-high-bit PNG-16 noma i-TIFF uma ufuna ukugcina ubukhulu obubanzi be-dynamic range.

Ingabe incane ifreyimu ekhishwayo Image kwidiski?

Kuxhomekeka kusinqumo kanye nokukhetha kwe-Image codec: ifreyimu ye-1080p PNG iyisi-2-5 MB engalahleki, i-1080p JPG esezingeni le-85 iyisi-200-500 KB. Yandisa ngokubalwa kwefreyimu ukuze usize i-ZIP — ekugcineni, ukukhipha i-PNG ngayinye yefreyimu yemizuzu engu-10 1080p 3GP kulinganiselwa ku-50 GB futhi kuhlukaniswe ngezi-ZIPs eziningi.

Ingabe i-Image ekhishwayo igcina i-EXIF metadata yekhamera?

I 3GP i Container ayihambisani ne-EXIF ye-frame ngayinye ngendlela ikhamera ehlala khona eyenza ngayo, ngakho i Image amafayela aphuma nge-EXIF blocks engenanto. Umguquli ufaka `creation_time` indawo ekhombisa i-source frame timestamp, ngakho ungaphinde uhlela i-bundle ngendlela ye-chronological noma ulinganise nesihloko esingezansi / izihloko zezinkomba.

Ithatha isikhathi esingakanani ukukhishwa kwefreyimu kusuka ku 3GP kuya ku Image?

Ukususa ifreyimu kushesha - 20-30% yesikhathi somthombo. Iminithi engu-5 i 3GP -> Image iphele ngeminithi engu-1 kungakhathaliseki ukuthi ifreyimu eminingi ukhetha, ngoba ibhodlela liyi Image encoder libhala amafayela amancane ambalwa ngokufanayo, hhayi i 3GP demuxer.

Ingabe ngizokhipha amafreyimu ngesikhathi esifanele ngaphakathi kwe-3GP video?

Yebo - isinqumo sesikhathi esiphakeme sivuma uhlu oluhlukaniswe nge-comma (isibonelo `00:01:23, 00:05:00, 00:10:42.5`) futhi sikhiqiza ihele elinye Image ngesikhathi. Kusetshenziswa kumathumbnail esiga-nyezi, ama-shots endawo yokubhekisa, noma ukuthuthukisa ikhasi lokuxhumana lokubuyekeza.

Ingabe 3GP yami imfihlo ngesikhathi sokukhishwa kwefreyimu?

Yebo — imodeli yobumfihlo efanayo njengezo zonke iziguquli. Umsuka 3GP kanye ne-Image ekhishwayo iqhutshwa kubasebenzi abahlukanisiwe futhi isuswa ngaphakathi kwemizuzu yokuqedwa.

3GP

I-3GP iyifomethi yesitsha semultimedia eyenzelwe omakhalekhukhwini be-3G. Ingagcina idatha yomsindo nevidiyo futhi ivamise ukusetshenziselwa ukudlalwa kwevidiyo yeselula.

Image

Amafayela ezithombe, njenge-JPG, i-PNG, ne-GIF, agcina ulwazi olubonakalayo. Lawa mafayela angaqukatha izithombe, ihluzo, noma imifanekiso. Izithombe zisetshenziswa ezinhlelweni zokusebenza ezahlukahlukene, okuhlanganisa ukwakheka kwewebhu, imidiya yedijithali, kanye nemifanekiso yamadokhumenti, ukudlulisa okuqukethwe okubonakalayo.