M4V → Image

Guqula Eyakho M4V ukuba Image iifayile ngokulula

Khetha iifayile zakho

okanye rhuqa uze ushiye iifayile zakho apha

Inkqubo ekhululekileyo: 1 IiNguqulelo/iyure · Yiya ngaphandle komda →

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

Iyalayisha

Indlela yokuguqula M4V ukuba Image

Inyathelo 1: Layisha eyakho M4V iifayile usebenzisa iqhosha elingasentla okanye ngokutsala nokuwisa.

Inyathelo lesi-2: Cofa iqhosha elithi 'Guqula' ukuze uqalise ukuguqula.

Inyathelo lesi-3: Khuphela i-converted yakho Image iifayile

M4V ukuba Image Imibuzo Ebuzwa Rhoqo Ngokuguqula

Ndizikhupha njani iifayili kwi-M4V ividiyo njenge-Image imifanekiso?

Layisha phezulu i M4V kwaye umguquli ubonisa umkhethi wesakhelo-sokukhupha: isakhelo ngasinye se-Nth, isakhelo kwixesha elikhankanyiweyo, okanye isakhelo ngasinye kwisiqingatha seyure. Isakhelo ngasinye esikhethiweyo sikhowudiwe njengefayili ye Image kwaye iseti epheleleyo iquka uvimba we-ZIP oza kukhuphela. M4V yi-Apple's MP4, esetyenziswa yi-iTunes ne-Apple TV app yefilimu kunye ne-TV. Umfanekiso apha yinjongo eqhelekileyo: umguquli ukhetha ifomati ye raster efanelekileyo yomthombo kunokuba uvumele enye kuwe.

Ingaba izihloko ezingaphantsi ziya kubonakala kwi Image iifayili endizikhuphayo?

Ayinjalo ukuba ziyindawo ebonakalayo yokulandela umbhalo osezantsi ephepheni. I M4V igcina umbhalo osezantsi ephepheni njengendlela yabo yokuhamba kwaye umdlali uzoba ngaphezulu komfanekiso ngexesha lokudlala, ngoko ke isakhelo esikhowudiweyo umguquli ubhala ngaphandle njenge Image inee-pixels ezicocekileyo ezantsi. Isihloko esingaphantsi esikhutshwe kwividiyo phambi kokuba ibe yi M4V siyinto eyahlukileyo - ngoko ziyinxalenye yomfanekiso kwaye yonke isakhelo esikhutshwe sigcina ezi.

Ndingayitsala enye Image ngaphandle kwesihloko ngasinye se M4V?

Ayiba iqhosha elinye, kodwa i M4V iyenza ibonakale icacile: iimpawu zesiqendu zigcinwa kwisiqulathi seefayili njengeziphawuli zexesha ezibizwa ngokuba zii-timestamps, ngoko funda uluhlu lwesiqendu ngaphandle kwefayile kwaye ucofe ezixesha kwindawo ye-timestamp. Ufumana enye Image kwisiqendu ngasinye, ngokulandelana, eyiyo indlela eqhelekileyo yokwakha imifanekiso eqingqiweyo yoshicilelo olude. Amacebo angenamanqaku esiqendu ashiya ukukhetha imiboniso ngombono endaweni. I-M4V igcina abaphawuli besiqendu, umsebenzi wobugcisa kunye nengoma yesihloko esingaphantsi kwisimo i-Apple TV app ilindeleyo, eyona MP4 iqhelekileyo ihlala ilahlekelwa yiyo.

Ingaba i-Image ixhasa ukubonakaliswa ngokucacileyo?

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-Image kamva ngaphandle kokuguqula i-format kwakhona. Ukukhetha isiphelo ngokuzenzekelayo kuthetha ukuba ufumana ifayile evula naphi na ngaphandle kokufuna ukuqonda malunga nee codecs kuqala.

Ingaba iifayili Image ziya kuba zikhulu kangakanani?

Ikhulu kunalo lonke ulindeleyo, kuba Image 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. Iindawo ezivela kuzo iimifanekiso zimiselwe kwi-JPG, iindawo ezivela kuzo ezibonisa ngaphaya okanye imida eqinileyo zimiselwe kwi-PNG, kwaye iindawo ezivela kuzo iiphepha ezininzi zivelisa umfanekiso omnye kwiphepha ngalinye.

Kunye nobunzulu obunjani isakhelo ngasinye esikhutshwe Image siphuma?

Ugqibo olufanayo njenge M4V ividiyo — i-1080p M4V ivelisa i-1920×1080 Image iifayili; i-4K M4V ivelisa i-3840×2160 Image iifayili. Sebenzisa uncedo lokuphinda ubungakanani emva kokukhupha ukuba ufuna iithumbnails ezincinci okanye ubungakanani bokusika i-social-media.

Ndingayikhupha isakhelo ngasinye esitsha kwi M4V njenge Image?

Ewe, kodwa uqaphele ngobalo lwefayili - i-30fps 1-imizuzu M4V ivelisa i-1,800 Image iifayili. Sizifaka kwi-ZIP ngokuzenzekelayo. Kwiiclip ezide, ukhetho "1 ngomzuzwana" (iifayili ezi-60) okanye i-timestamps ekhethekileyo inika isiphumo esilawulwayo.

Ingaba imifanekiso ekhutshweyo Image iya kugcina umbala ophakamileyo M4V?

Ewe — umbala uguqulwa umbala nge-matrix esetyenziswa ngumboneleli M4V (BT.709 ye-HD, BT.2020 ye-4K HDR). Umboneleli we-HDR udweliswe nge-tone-map kwi-SDR xa ukhupha kwi-Image kuba i-Image ifomati (PNG, JPG) ayikwazi ukugcina i-HDR pixel ranges ngokusemthethweni.

Yintoni ubungakanani befayili yesakhelo esitshatweyo Image?

Ixhomekeke kwisisombululo kunye ne Image codec. I-1080p PNG frame ihlala i-2 ukuya kwi-5 MB; i-1080p JPG kwi-quality-85 i-200 ukuya kwi-500 KB; i-4K PNG i-6 ukuya kwi-15 MB. Kwimeko ebuhlungu, i-PNG frame nganye yokukhupha i-10-minute 1080p M4V ivelisa ~50 GB ngokupheleleyo.

Ingaba i-Image ekhutshiweyo igcina i-EXIF metadata yekhamera?

Isiqulathi seefayili M4V asigcinanga i-EXIF yesakhelo ngasinye ngendlela ikhamera ehlala isenza ngayo, ngoko ke ii-Image iifayili ziphuma nge-EXIF engenanto. Sifaka `creation_time` indawo ebonisa i-source frame timestamp ukuze uphinde ulungelelanise i-bundle ngokulandelana kokuthatha.

Ithatha ixesha elingakanani ukususwa kwesakhelo ukusuka kwi M4V ukuya kwi Image?

Ukukhupha iframe kukhawuleza - ngokuqhelekileyo 20 ukuya 30% yobude bomthombo kwindlela eqhelekileyo yokuhambisa. Imizuzu emihlanu M4V → Image iqela ligqiba malunga nemizuzu enye ngaphandle kokucinga ngobalo lweeframe, kuba ibhotile yengxowa yi Image encoder, hayi i M4V demuxer.

Ndingazikhupha iifayili kwixesha elikhankanyiweyo le M4V?

Ewe - ukhetho oluphambili luyakwamkela uluhlu oluhlukaniswe nge-comma lweziqinisekiso zexesha (umzekelo `00:01:23,00:05:00,00:10:42`) kwaye luvelise ifayile enye Image ngesatifiketi sexesha. Esetyenziswa kwizifundo ezincinci zesifundo, iziganeko ezibhekisa kwimifanekiso, okanye izifundo ezide ezibonisa imifanekiso.

M4V

I-M4V yifomati yefayile yevidiyo ephuhliswe nguApple. Iyafana neMP4 kwaye iqhele ukusetyenziselwa ukudlala ividiyo kwizixhobo zeApple.

Image

Iifayile zemifanekiso, ezifana neJPG, PNG, kunye neGIF, zigcina ulwazi olubonakalayo. Ezi fayile zingaqulatha iifoto, imizobo, okanye imifanekiso. Imifanekiso isetyenziswa kwiintlobo ngeentlobo zezicelo, kubandakanya uyilo lwewebhu, imidiya yedijithali, kunye nemifanekiso yamaxwebhu, ukuhambisa umxholo obonakalayo.