Guqula 3GP ukuba BMP

Guqula Eyakho 3GP ukuba BMP amaxwebhu ngokulula

Khetha iifayile zakho

*Iifayile zicinyiwe emva kweeyure ezingama-24

Guqula iifayile ezifikelela kwi-1 GB simahla, abasebenzisi bePro banokuguqula iifayile ezifikelela kwi-100 GB; Bhalisa ngoku

Iyalayisha

Indlela yokuguqula 3GP ukuba BMP

Inyathelo 1: Rhweba ngaphakathi 3GP iifayili usebenzisa iqhosha phezulu okanye nge shift nendawo.

Inyathelo 2: Nqakraza kwiqhosha 'Uguqulo' ukuqala uguqulo.

Inyathelo 3: Gcina ifayile yakho eguqulweyo BMP iifayile

3GP ukuba BMP Imibuzo Ebuzwa Rhoqo Ngokuguqula

Ndizikhupha njani iifayili kwi-3GP video njenge-BMP imifanekiso?

Layisha phezulu ifayili 3GP kwaye umguquli ubonisa umkhethi wesakhelo-sokukhupha: isakhelo ngasinye se-Nth, ii-frames kwi-timestamps ezichaziweyo, okanye i-frame enye ngesekondi. Isakhelo ngasinye esikhethiweyo sikhowudiwe njengefayili ehlukileyo ye BMP kwaye sidityaniswe njenge-ZIP yokukhuphela ezantsi.

Umfanekiso okhuphiweyo BMP uphuma njani kwisisombululo esipheleleyo?

Ubungakanani obufanayo njenge-3GP ividiyo — umthombo we-1080p uvelisa i-1920×1080 BMP ii-frames; umthombo we-4K uvelisa i-3840×2160 BMP ii-frames. Yenza kwakhona ubungakanani emva kokukhupha ukuba ufuna ii-thumbnails ezincinci.

Ndingayikhupha isakhelo ngasinye kwifayili 3GP njenge BMP?

Ewe, kodwa uqaphele ngobalo lwefayili - i-30fps 1-minute video ivelisa ii-frames ezili-1,800. Sizifaka kwi-ZIP archive ngokuzenzekelayo. Kwiiclip ezide sebenzisa ukhetho "1 ngesekondi" (i-frames ezili-60) okanye iziqinisekiso zexesha ezikhethekileyo.

Ingaba imifanekiso BMP iya kugcina umbala ophakamileyo 3GP?

Ewe - umbala uguqulwa kwikhowudi nge-matrix efanayo esetyenziswa ngumboneleli 3GP (BT.709 ye-HD, BT.2020 ye-4K HDR). Umboneleli we-HDR udweliswe nge-tone-map kwi-SDR xa ukhupha kwi-BMP (i-PNG / JPG ayikwazi ukugcina amanqanaba e-pixels e-HDR ngokusemthethweni).

Lithini ubungakanani befayili yesakhelo esitshatweyo BMP?

Kuxhomekeke kwisisombululo kunye nokhetho lwe-codec. I-1080p PNG frame yi-2-5 MB; i-1080p JPG quality-85 frame yi-200-500 KB. Yandisa ngokubala i-frame ukuze ubungakanani be-ZIP — kwinqanaba eliphezulu, ukususwa kwe-frame nganye ye-10-min 1080p video kwi-PNG yi ~50 GB.

Ingaba i-BMP ekhutshweyo igcina i-EXIF metadata yekhamera?

Isiqulathi seefayili 3GP asigcinanga i-EXIF yesakhelo ngasinye ngendlela eyenza ikhamera ehlala ihlala, ngoko ke ii-BMP iifayili ziphuma nge-EXIF engenanto. Sifaka `creation_time` indawo ebonisa umhla wokugqitywa kwesakhelo somthombo ukuze uphinde ulungelelanise i-bundle.

Ithatha ixesha elingakanani ukususwa kwesakhelo ukusuka ku 3GP ukuya ku BMP?

Ukukhupha isakhelo kukhawuleza - ngokuqhelekileyo 20- 30% yobude bomthombo kwindlela eqhelekileyo yokuhambisa. Imizuzu emi- 5 3GP → BMP iquka igqiba malunga nemizuzu emi- 1 ngaphandle kokubala isakhelo, kuba ibhotile yengxowa yi BMP encoder, hayi i demuxer.

Ndingazikhuphela njani ii-frames kwi-timestamp ekhankanyiweyo kwi-3GP video?

Ewe - ukhetho oluphambili luyakwamkela uluhlu oluhlukaniswe nge-comma lweziqinisekiso zexesha (umzekelo `00:01:23,00:05:00,00:10:42`) kwaye luvelisa ifayili enye BMP ngesatifiketi sexesha ngasinye. Isetyenziswa kwizifundo ezincinci okanye iziganeko ezibhekisa kuzo.

Ingaba i-3GP yevidiyo yam ifihlakeleyo xa ikhutshwa i-frame?

Ewe - imodeli yobumfihlo efanayo neyokuguqulwa ngasinye. Ividiyo yombhalo kunye neefreyimu ezikhuphiweyo ziqhubekekiswa kubasebenzi ababekwe ngokuzimeleyo kwaye zicinywe kwimizuzu.

Kutheni i-BMP isakhelo sam esikhutshweyo simnyama?

I-motion blur ihlala ivela kumboneleli 3GP (ikhamera yayihamba xa isakhelo sathathwa). Zama ukukhetha i-timestamps ukusuka kwimiboniso ehlala ikhona, okanye uthathe ii-frames ezininzi ezibekwe phantsi uze ukhethe ezicacileyo. I-pipeline ayiqwalaseli ukubonakala.

Ingaba le sixhobo sixhasa ukutsala isakhelo esinye ngasinye kutshintsho lwendawo yomboniso?

Akukho kutyibiliko olusisiseko - sebenzisa ukhetho "1 ngomzuzwana" njengokwenkxaso, emva koko ukhethe ngokubonakalayo iifayili zotshintsho lwendawo. Umqokeleli wokufumana indawo okhethekileyo ukwi-roadmap.

Ndingasebenzisa i-BMP isakhelo esikhutshweyo ngokurhweba?

Ewe, ngokuxhomekeke kwilayisensi elawula umthombo 3GP umxholo. Utshintsho lwefomati aluyi kuzisa naziphi na izilumkiso — siza kudibanisa akukho phawu lwamanzi kwaye siza kuzisa naziphi na izilumkiso kwi BMP imveliso.

3GP

I-3GP yi-MP4 ethe nkqo eyenziwe kuthungelwano lwefowuni oluphambili, ngoko iifayile zincinci kodwa ubungakanani kunye nomgangatho wesandi umiselwe.

BMP

Iifayile zeBMP zigcina imifanekiso kwifomathi yebitmap engacinezelwanga, nto leyo ebangela ukuba iifayile zibe nkulu kodwa zibe nomgangatho ogqibeleleyo.