MP4 → WebP

Guqula Eyakho MP4 kuya WebP amafayela kalula

Khetha amafayela akho

noma cindezela bese ususa amafayela akho lapha

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Tshintsha amafayela mahhala, Pro abasebenzisi bangaguqula amafayela amakhulu kakhulu; Bhala manje

Ukulayisha

Indlela yokuguqula MP4 kuya WebP

Isinyathelo 1: Layisha eyakho MP4 amafayela usebenzisa inkinobho engenhla noma ngokuhudula bese uphonsa.

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

Isinyathelo 3: Landa i-version yakho WebP amafayela

MP4 kuya WebP Imibuzo Evame Ukubuzwa Yokuguqulwa

Ngiyiguqula kanjani i-MP4 ividiyo ibe yi-WebP ephilayo?

Layisha phezulu i MP4 futhi umguquli ubonisa amafreyimu (iphutha 15 fps), ukufaka kuwo i WebP ephilayo, futhi usebenzise i-palette quantization elungele i-WebP (i-GIF ithola i-palette ehambisanayo yemibala engu-256; i-WebP ephilayo isekela umbala ogcwele we-24-bit). MP4 yi ISO/IEC 14496-14, ejwayelekile ngo-2001 futhi ivela ku-QuickTime box layout MOV isebenzisa. WebP Google 2010 isithombe ifomu, eyenziwe kusuka VP8 keyframe encoder futhi inhloso ukushintsha JPG, PNG ne GIF ngasikhathi sinye.

Ngikhetha kanjani amasekondi ambalwa e MP4 ukuze ngizikhaphe?

Vula kulo mdlali, thola isikhathi bese uqaphela ikhodi lesikhathi, ngoba MP4 akufanele ithathe izibonakaliso zesigaba ukuze ihambe. Chofoza kulo mhlaba wesikhathi sokuqala, ngeza isikhathi sokuhlala, futhi umguquli ubheka kuleso sikhathi futhi uqophe kuphela isikhala esicelayo. Ukufuna kulungile kwifreyimu, kodwa kungalungile kuphela njengoba inani linikezwa - hlola ngokubheka ngaphambi kokudlulisa kwividiyo ende. I-MP4 isekela kuphela ifomu elilodwa lesihloko esihlonishwa kakhulu (mov_text), futhi umsindo we-multi-track awuthembeki ngaphandle kwama-players wedesktop.

Ingabe kubaluleke ukuthi i-MP4 ivela kufoni noma kwikhamera?

Ngokuyinhloko ulungele ukuqondiswa. A MP4 yifayela le-ISO base-media, futhi le mindeni irekhoda ukujikeleza njengeflegi ebhokisini ngaphezu kokujikeleza ama-pixels — ngakho-ke iclip ethweswe phansi ngefoni ingabonakalela ekunene kumdlali owodwa futhi ihlale ecaleni lakhe elinye. Umbukiso ukhiwa kusuka kuma-pixels aqoshiwe, ngakho-ke i-flegi kufanele ihlolwe ngaphambi kokuba ifreyimu yokuqala ibhalwe; uma ukubukela kuqala kubuyela emuva, jikelezisa umsuka futhi uyiguqule futhi. Konke okuthile mayelana nekhamera noma umhleli wokurekhoda kuyinkinga elula: i-video track eyodwa, umsinga owodwa oqinile wefreyimu. Kuyinto encane kakhulu ukuthi wonke ama-MP4 aphilayo ayizividiyo ze-H.264 ezinesandi se-AAC; isiqukathi sigcina ngokusemthethweni i-HEVC, AV1 ne-VP9.

I MP4 yavela kukhasi lewebhu — ingashintsha ibe yi WebP?

Yebo, uma unefayela lakho. I MP4 yilokho i-web esebenzisayo ngevidiyo engaphakathi kwelayini ngokucacile ngoba iziphequluli zidlala ngaphandle kweplugin, ngakho-ke i-clip edlalayo kwi-tab ivame ukuba yi-MP4 elula egcina futhi ikhuphula lapha njengenoma iyiphi enye ifayela. Ukukhishwa kuyisidlali esisakazayo esinikeza iziqephu ezincane ezinamanani ngaphezu kwefayela elinye — lezi zidinga ukubuyiselwa emuva ngaphambi kokuba noma yini iguqulwe. Ilungelo liyinto ehlukile efanele ukubheka: ukukwazi ukufaka ividiyo akuyona into efanayo negunya lokushicilela kabusha i-animation eyenziwe kuyo. MP4 iyinjongo ephephile yokulethwa - yonke ifoni, i-browser, i-console, umhleli ne-Smart TV eyenziwe eminyakeni eyisithupha edlule idlala ngaphandle kwesoftware engeziwe.

Ingabe amafreyimu eWebP aphilayo kufanele abe nephutha noma angeke abe nephutha?

Ukulahleka, nganoma yini eqala njengevidiyo. I-WebP ephilayo ingafaka ifreyimu yayo ngendlela eyodwa noma enye: indlela engalahleki igcina wonke ama-pixel futhi ilungele izithombe ezicacile kanye nombhalo we-screen, ngenkathi indlela elahlekile isebenzisa ukubikezela okusekelwe ebhodini lohlobo lwe-codec yevidiyo esebenzisayo futhi ilungele i-footage engokoqobo. Ifreyimu yekhamera igcwele ama-grain ancane ne-gradients ukuthi ukucindezela okungalahleki akutholakali kunoma iyiphi imodeli, ngakho-ke i-animation engalahleki yevidiyo erekhodiwe ingasebenza izikhathi eziningi ubukhulu be-lossy one ebukekayo. Yishiye ilahlekile ngaphandle kokuthi umsuka ube ukurekhodwa kwe-screen kobhalo olucacile. I-WebP ihlala iyisikole sesithathu ngaphandle kwesiphequluli — ukuphrinta komsebenzi, ama-Office adala futhi ezinye izimboni zefoni azikwazi ukuwuvuma.

Ingabe ngidinga ukuba ncane kangakanani i-MP4 yami yevidiyo ukuze ngikwazi ukudala i-WebP animation ehlanzekile?

I-animated WebP isebenza kahle kakhulu kuma-clip angaphansi kwemizuzu engu-10. Ngaphesheya kwalokho ama-balloons wefayela (i-GIF ibalulekile nge-frame ngayinye engacindezelwa). I-animated ede kakhulu idinga i-WebP noma i-APNG esebenza kahle, zombili zisebenzisa ukucindezelwa kwevidiyo-codec-grade futhi zilinganiselwe kahle.

Yini ubukhulu behele okufanele ngilindele kusuka ku-5-second MP4 → WebP?

I-GIF ephilayo: 2 kuya ku-8 MB ku-480p ngokuya ngezinkinga zokuhamba. I-WebP ephilayo: 200 KB kuya ku-1 MB ku-resolution / quality efanayo. I-WebP ephilayo i-5 kuya ku-10x ingcono kune-GIF ku-quality ebonakalayo efanayo. I-WebP inikeza izimo ezilahlekile nezingenalahlekile, ngokukhanya kwe-alpha nokubukeka okutholakalayo kunoma yikuphi.

Ingabe i-WebP animation izobe isebenzisa ifreyimu efanayo ne-MP4?

Ngokungajwayelekile sikhuphula isampula ku-15 fps ye-GIF ephilayo (ibhekana nobunzima ngaphezu kuka-25 fps) kanye ne-24 fps ye-WebP / APNG ephilayo (ephatha ama-rate aphezulu ngokucophelela). Nciphisa nge-frame-rate option uma umbukeli wakho uxhasa i-source rate.

Ingabe i WebP animation izodlala umsindo kusuka ku MP4?

Akukho — amafomethi WebP aphilayo (GIF, WebP, APNG) angagcina umsindo. Uma ufuna umsindo, bheka ibhokisi levidiyo (MP4, WebM) endaweni yefomethi yesithombe esiphilayo.

Ingabe ngingenza i WebP yobuciko be-loop ngokuqhubekayo?

Yebo - isinqumo sokubalwa kwe-loop silawula ukuthi ngabe WebP i-loops iphela (iphutha), idlala izikhathi N, noma idlala ngokugcwele kabili. Ukubalwa kwe-loop kugcinwa ku WebP i-metadata yokuqoqa futhi kuhlonishwa yinoma iyiphi imboniso yamanje.

Kungani WebP yami ibukeka ingquza uma iqhathaniswa nomthombo MP4?

Izizathu ezimbili ezivamile. Okuqala, ukusatshalaliswa kwefremu-rate: 15 fps WebP kusuka ku-60 fps MP4 kususa i-75% yefremu; lungisa nge-frame-rate slider. Okulandelayo, ukusatshalaliswa kwephakeji: i-GIF iphele kuma-256 amamibala futhi i-gradient-heavy MP4 i-dithers ngokubonakalayo. Yishintshe ku-WebP ephilayo ukuze kube nombala ogcwele.

Ingabe ngingakwazi ukugoqa noma ukuguqula ubukhulu be MP4 ngaphambi kokwenza i-WebP?

Yebo — ukhetho lokushintsha ubukhulu luyinciphisa i MP4 ngezansi ngaphambi kokukhipha ifreyimu, okunciphisa kakhulu ubukhulu behele WebP. I-480p WebP kusuka ku-4K MP4 incane kakhulu kune-16x 4K WebP. Sebenzisa /video-cutter/ ukugoqa ngenyathelo elilodwa.