Guqula AVI ukuba PNG

Kuba umthombo udityaniswe. AVI imixholo evela kwixesha le-DVD nele-broadcast igcina iindawo ezimbini zomphakamo wesiqendu kwiframe nganye, ithathwe kwishumi elinesixhenxe sesekondi, kwaye i-still ethe tyaba ibonisa zombini ezidityaniswe njenge-combing nantoni na ehambayo. Yenza u-deinterlacing phambi kokukhupha kwaye i-still nganye ikhiwa ukusuka kwi-frame eqhubekayo eyenziwe kwakhona. AVI yiMicrosoft's Audio Video Interleave, enikezelwe ngowe-1992 phezulu kwe RIFF chunk format - enye yezinto ezidala ezigcinwe zihlala zijikeleza.

Eyona ubonisa kuyo, hayi yokuqala kuphela. Isiqinisekiso sexesha sikhetha ixesha elinye ngaphandle kwe AVI; isicwangciso so interval sihamba kwividiyo yonke kwaye sibuyisela elinye PNG kwinyathelo ngalinye, sinikezelwa njenge-ZIP. Okumiselweyo kukuthatha iframe imizuzwana emininzi endaweni ye-00:00, kuba i-frame yokuqalisa yevidiyo imnyama kakhulu.

Ifomati isebenza, kodwa umbhali akafuni i-alpha ukunika - ii-frames zevidiyo kunye neephepha ezibonisiweyo zicacile ngokupheleleyo, ngoko ke zonke ii-pixels zifika ziqinile. Isiqhagamshelanisi se-alpha sihlala sisetyenziswa emva koko: kuthetha ukuba ungacima into ephuma kwi-PNG kamva ngaphandle kokuguqula i-format kwakhona. I-PNG yinketho efanelekileyo yokuthatha imifanekiso yekhusi, ilogos, umzobo womgca nantoni na enemiphetho eqinileyo okanye ebonisa ngaphaya — akukho cingo, akukho mbala obandayo.

Ikhulu kunalo lonke ulindeleyo, kuba PNG igcina i-pixel nganye ngokuchanekileyo kunokuba ilinganise. I-1080p ihlala iwela ngaphantsi kwe-2-5 MB kwaye i-4K ihlala ngaphantsi kwe-6-15 MB, ngoko ke ukuphuma okude kudibanisa ngokukhawuleza. Oku kurhwebo oluchanekileyo xa imifanekiso i feed iqhubekeka, kwaye okubi xa zihamba ngqo kwiphepha le-web. I-PNG isebenzisa uxinzelelo lwe-DEFLATE ngaphezulu kwamagqabantshintshi okuskena acociweyo, ngoko ke i-pixel nganye ihlala ngokuchanekileyo, kunye ne-8-bit epheleleyo ye-alpha channel.

Ii-akhawunti ezikhululekileyo zifikelela kwi-100 MB kwifayili nganye, AVI amacebo ahamba phezulu ngenxa yokuba ifomati ihambisa i-chunk nganye ebalulekileyo engaphezulu kwe-data yevidiyo. I-Premium iphakamisa i-cap ngokucacileyo. Ukuba ifayile ihlukaniswe ibe ziinxalenye ezilinganisayo ngenxa yefomati ye-ceiling, ulayishe nganye nganye kwaye zithathwe njengemisebenzi enye. I-AVI ayinakuxhaswa kwe-codecs ekutsha, i-frame rate etshintshayo, izihloko ezimfutshane ezicocekileyo okanye iifayile ezingaphezulu kwe-4 GB ngaphandle kwe-hacks, kwaye i-chunk nganye i-overhead ikhupha ifayili.

Ewe - uguqulelo olusisiseko AVI → PNG lukhululekile ngaphandle kobhaliso. I-Premium idibanisa umda ophezulu wobungakanani befayili nganye, abasebenzi abangaphezulu beqela elifanayo, kwaye isusa ii-ad.

Ii-akhawunti ezikhululekileyo: ukuya kuthi ga kwi-100 MB ngefayili nganye ye AVI. I-Premium: ihlala i-1 GB ngefayili nganye, kuxhomekeke kuhlobo lombhalo we AVI. Iifayile ezinkulu kakhulu zihlukaniswa zibe zii-chunks kwi-server-side xa i-PNG ivumela.

Uguqulelo lugcina yonke i-informatios enokuthi imele i-AVI ne-PNG. Iimpawu ezikhethekileyo zefomati ezingenakuxhaswa yi-PNG (umzekelo, i-data ye-vector kwi-raster output, ii-formula kwi-plain-text output) zi-rasterized okanye zi-stripped — bona iziphawuli ezikhethekileyo zefomati kwiphepha le-result.

Ewe — susa iifayile ezininzi AVI kummandla wokulayisha kwaye zifololwe ngokuthe tye. I-Premium inemisebenzi emininzi ethe tye; kwi-50-file batch le yi-difference phakathi kwemizuzu nemizuzu.

Ewe - i-UI iphendula kwaye inkqubo yokuguqula iqhuba kwicala leseva, ngoko ii-mobile devices zikhuphela-za-zikhuphele njenge-desktops. I-iOS kunye ne-Android browser files pickers (ikhamera ijikeleza, Iifayile zeapp) zisebenza ekupheleni-kwi-kuphela.

I-Chrome, i-Firefox, i-Safari (15+), i-Edge, ne-Opera. Umguquli usebenzisa ulayisho olusezantsi `<input type="file">` - akukho WebAssembly okanye i-PWA ixhomekeke - ngoko ke nakwi-browser edala isebenza.