MP4 → WebP

Chinja Yako MP4 kuti WebP mafaira pasina simba

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Maitiro ekushandura MP4 kuti WebP

Danho 1: Isa yako MP4 mafaira uchishandisa bhatani riri pamusoro kana nekudhonza nekudonhedza.

Danho rechipiri: Dzvanya bhatani rekuti 'Convert' kuti utange kushandura.

Danho rechitatu: Dhawunirodha yako yakashandurwa WebP mafaira

MP4 kuti WebP Mibvunzo Inowanzo bvunzwa Nezvekuchinja

Ndinogona sei kushandura MP4 video kuita animated WebP?

Upload the MP4 uye mushanduri anotora mifananidzo (default 15 fps), anoshandura iwo muanimated WebP chigaro, uye anoshandisa palette quantumization yakagadzirirwa ye WebP fomati (GIF inowana adaptive 256-color palette; animated WebP inotsigira yakazara 24-bit color). MP4 ndiro ISO / IEC 14496-14, standardized muna 2001 uye yakagadzirwa kubva pamwechete QuickTime box layout MOV shandisa. WebP ndiyo Google’s 2010 image format, yakagadzirwa kubva kuVP8 keyframe encoder uye yakagadzirirwa kushandura JPG, PNG neGIF rimwe chete.

Ndinogona sei kusarudza kuti ndeipi yesekondi ye MP4 inofanira kuratidzwa?

Anyangwe iwe uchida kuisa vhidhiyo yako muvhidhiyo player, tsvaga nguva yacho uye nyora nguva yacho, nekuti MP4 hazvina kumbobvira zvave nenyaya dzinoratidzwa. Peta vhidhiyo yako munguva yekutanga, wedzera nguva yacho, uye mushanduri uchatsvaga nguva yacho uye uchadecode nguva yacho. Kutsvaga nguva kunonyatsoenderana neframe, asi kunogona kunge kuri nyore sezvakataurwa — tarisa kuti ndeipi nguva yacho yaunoda kuti uone pakutanga. MP4 chete anotsigira imwe zvakaoma-honorable subtitle format (mov_text), uye multi-track audio haasi kuvimbika kunze desktop vatambi.

Ichokwadi here kuti MP4 yakabva pafoni kana kamera?

A MP4 i ISO base-media file, uye iyo family records rotation se flag mu container kupfuura nekuvanza mapixels — izvo zvinoita kuti clip yakasviba yakatarisana nefoni ionekwe zvakanaka mu player imwe uye iite pasi pechiuno mu player imwe. Animation inobva ku decoded pixels, saka iyo flag inofanira kuchengetwa pamberi pekutanga frame inonzi; kana preview ichidzokera pasi, rova iyo source uye shandurazve. Zvese zvinotaurwa nezve kamera kana editor recordings zvinokurumidza: imwe video track, imwe yakasimba stream yeframes. Anenge ese MP4 muzvisikwa ndeH.264 video neAAC audio; chidimbu chinochengetawo HEVC, AV1 neVP9.

The MP4 yakabva pawebhu peji - inogona kushandurwa kuita WebP?

A MP4 ndiyo iyo web inoshandisa kune inline video zvakajeka nekuti mabrowser anotamba pasina plugin, saka clip inotamba mutab inotora zvakajairika MP4 iyo inochengeta uye inotumira pano seimwe file. Kusiyana ndechekuti streaming player inoburitsa ma segments akanyorwa akareba kupfuura imwe file - avo vanofanirwa kudzokororwa mushure mekunge chero chinhu chinogona kushandurwa. Rights ndeimwe yezvinhu zvinokosha kuongorora: kukwanisa kurodha pasi video hachisi chinhu chimwe chete nekuva nekodzero yekudzokorora kuburitsa animation yakagadzirwa kubva kwaro. MP4 ndiyo yakachengeteka kwazvo yekutumira chinangwa - chero foni, browser, console, munyori uye Smart TV yakagadzirwa mumakore apfuura inotamba pasina software.

Ndezvipi maframes mu WebP animated anofanira kunge ari ne lossy kana kuti asina lossy?

Lossy, kune chero chinhu chakatanga sevhidhiyo. Animated WebP inogona kushandura maframes ayo nenzira ipi neipi: iyo lossless modhi inochengeta yega yega pixel uye inosangana neyakapfava graphic uye skrini yekunyora, apo iyo lossy modhi inoshandisa block-based prediction yerudzi rwe video codec inoshandisa uye inosangana nechokwadi chekutamba. Kamera maframes anosanganisira mavara akaoma uye magradients ayo lossless compression haazowana chero mufananidzo, saka a lossless animation yefilmed clip inogona kutamba kakawanda kakawanda kupfuura iyo lossy imwe iyo inoonekwa seimwe. Tora iyo lossy kana kuti iyo nzvimbo yaive skrini yekurekodha yeyakajeka yekunyora. WebP ichiri yechidiki kunze kwebrowser — maprinta ebasa, maOffice ekare uye mamwe mafoni magalleries haazoigamuchira.

Ndeipi nguva yakareba yaungaite kuti MP4 clip yangu ive yakasununguka WebP animation?

Animated WebP inoita zvakanaka kune mavhidhiyo anosvika 10 masekondi. Kusvika paizvozvo faira rinobuda mumifananidzo (GIF isiri kumanikidzwa pafremu). Kune mavhidhiyo ane nguva yakareba, shandisa WebP kana APNG, izvo zvinoda kumanikidzwa kwemhando yevideo codec uye zvinowedzera kugadzikana.

Ndeipi saizi yefaira ndinofanira kutarisira kubva ku5-second MP4 → WebP?

Animated GIF: 2 kusvika 8 MB pa480p zvichienderana nekumhanya kwechimiro. Animated WebP: 200 KB kusvika 1 MB pamwechete resolution / mhando. Animated WebP i5 kusvika 10x yakasimba kupfuura GIF yemhando imwechete yekuona. WebP inopa mamodheru maviri, ekuputika uye epasi, ane alpha transparency uye animation.

Ichava neWebP animation ine imwe chete frame rate seMP4?

Nekuzvimisikidza isu tinodzikisa ku 15 fps yeanobata GIF (izvi zvinonetsa kupfuura 25 fps) uye 24 fps yeanobata WebP / APNG (iyo inodzora zvakanyanya zvakachena). Nekuchinja nechekuita ne frame-rate sarudzo kana muverengi wako achitsigira iyo yemutauro.

Icho WebP animation ichatamba vhidhiyo kubva ku MP4?

Hapana — zvifananidzo zve WebP (GIF, WebP, APNG) hazvina kuchengetedza mashoko. Kana uchida mashoko, shandisa vhidhiyo (MP4, WebM) senzira yekuvaka zvifananidzo.

Ndinogona here kuita kuti WebP animation loop ive yakasimba?

Yeah — iyo loop-count sarudzo inodzora kana WebP ichidzokorora pasina kumbobvira (default), ichitamba N nguva, kana ichitamba chete kamwe chete. Iyo loop count inochengetwa mu WebP container metadata uye inoteverwa neese matsva maviewer.

Nei WebP yangu ichitaridzika ichivhara kana ichienzaniswa neMP4 chaiyo?

Zvikonzero zviviri zvinozivikanwa. Pakutanga, kuderera kwefremu-rate: 15 fps WebP kubva ku60 fps MP4 kunodzikira 75% yefremu; gadzirisa nefremu-rate slider. Pakupedzisira, palette quantization: GIF inorambidzwa kusvika ku256 mavara uye gradient-heavy MP4 dithers zviri pachena. Dzvanya paanofamba WebP kuti uwane kuvimbika kweakazara-akasiyana-siyana.

Ndinogona here kubvisa kana kushandura saizi ye MP4 usati waita WebP?

Yeah — resize sarudzo inowedzera MP4 pasi pekubvisa frame, izvo zvinowedzera zvakanyanya WebP faira saizi. 480p WebP kubva ku4K MP4 ndeye 16x yakaderera kupfuura 4K WebP. Usashandisa /video-cutter/ kuchera mune imwe nhanho.