MOV → WebP

Yebo, futhi kuyindlela elula kakhulu yokuthola isikhathi ofuna. I MOV igcina izihloko eziphawulwe ebhokisini njengeziqephu zesikhathi ezibizwa ngokuthi, ngakho uhlu luyafunda ngokuqondile kusuka kuhele futhi i-in-point ifakwe endaweni yokuqala isikhathi endaweni yokuzama ukubheka. Vumela isikhathi eside futhi kuphela lesi sibalo sizokhishwa, ngakho-ke ubude bokunye kwe-MOV kwenza akukho shintsho ekude kangakanani umsebenzi. MOV yifomethi abashicileli abaqeqeshiwe bacela, ngoba ihlala iphinda i-round-trips nge Final Cut Pro, Premiere ne DaVinci Resolve ngaphandle kokulahlekelwa kohlobo.

Ngokuyinhloko ulungele ukuqondiswa. A MOV 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. I-MOV ivame ukuthwala i-H.264 noma i-HEVC yokudlulisa, noma i-ProRes uma iyi-editor master, kanye ne-AAC noma umsindo we-PCM ongacindezelwa.

Ngenxa yokuthi MOV ayisiqhingi, iziphequluli zidinga ukuxhasa, futhi isakhiwo esiphatha i-container sishintsha kakhulu kunesiqinisekisiwe. Akunashintsho mayelana nokuguquka - ihele liqokwa ikhasimende-ikhasi, ngakho isiqephu esikhohlisa isiphequluli siguqula ngokugcwele njengenye ivumela, futhi akukho bhokisi le-codec elidingayo ukuyisebenzisa lapha. Kubalulekile ukwazi indlela yokuhweba esebenza ngayo, kepha: i-WebP ephilayo ebuyayo iyifomethi yonke isiphequluli esiyinikeza, ngakho lokhu kususa i-clip kusuka kulokho i-web ayizokwazi ukuchofoza kulokho izokwenza. Amafayela MOV akhulu, futhi ngaphandle kwe-Apple ecosystem ukusakazwa kosizo kuncane kuna-MP4 - Android edala futhi ezinye Smart TVs zizozivumelanisa.

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.

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.

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.

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.

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

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.

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

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