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?

Unogona kurodha pasi iyo MP4 uye mushanduri anotora mifananidzo (default 15 fps), anoisa iwo muanimated WebP chigaro, uye anoisa palette quantumization yakagadzirirwa yeWebP 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 ndezvipi zvishoma sekondi zve MP4 kuti zvive zvepanyama?

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.

Chii chinoitika kana MP4 yasvika kubva pafoni kana kamera?

A MP4 i ISO base-media file, uye iyo family records rotation se flag mu container kupfuura nekuvanza ma pixels — izvo zvinoita kuti clip yakatora zvakadzika pafoni iite seyakajeka mu player imwe uye iite seyakamira pashure mu player imwe. Animation inobva pa pixels yakadzokororwa, saka flag inofanira kuchengetwa usati wanyora yekutanga frame; kana preview ichidzokera kumashure, rova iyo source uye shandurazve. Zvese zvinorehwa nekamera 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.

MP4 yakabva pawebhu peji - inogona kushandurwa kuita WebP?

Yeah, kana iwe uine faira. A MP4 ndiyo iyo web inoshandisa kune inline video nekuti browsers inotamba pasina plugin, saka clip iri kutamba mutab inotora MP4 iyo inochengeta uye inowedzera pano seimwe faira. Kunyangwe isiri iyo, mutambo wevhidhiyo unopa ma segments akanyorwa zvishoma kupfuura imwe faira - avo vanofanirwa kuunganidzwazve mushure mekunge chero chinhu chinogona kushandurwa. Rights ndeimwe yezvinhu zvinokosha kuongorora: kukwanisa kurodha pasi video hachisi chinhu chimwe chete nechinogona kuburitswazve 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, asi iyo lossy modhi inoshandisa block-based predicting yerudzi rwe video codec inoshandisa uye inosangana nechokwadi chekutamba. Kamera maframes anosanganisira mavara akaoma uye ma gradients ayo lossless compression haazopedzisira awana 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 yemashoko akajeka. WebP ichiri yechidiki kunze kwebrowser — michina yekudhinda, Office yakapfuura uye mamwe mafoni makamera haazoigamuchira.

Ndeipi nguva pfupi yaungaite kuti yangu MP4 clip ive yakapusa WebP animation?

Animated WebP inoita zvakanaka kune mavhidhiyo akaderera pane 10 masekondi. Kunyangwe faira richibuda (GIF inowanzove neframe-per-frame isina kumanikidzwa). Kune zvinyorwa zvirefu, shandisa WebP kana APNG, izvo zvinoda kumanikidzwa kwevideo-codec-grade uye zvinowedzera zvakanyanya.

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

Animated GIF: 2 to 8 MB at 480p depending on motion complexity. Animated WebP: 200 KB to 1 MB at the same resolution / quality. Animated WebP is 5 to 10x more efficient than GIF for the same visual quality. WebP inopa mamodheru maviri, ekuputika uye epasi, ane alpha transparency uye animation.

Ichava ne WebP animation ine imwe chete frame rate seMP4?

Nekuzvimisikidza tinodzikisa ku 15 fps kune akashongedzwa GIF (anosangana nematambudziko pamusoro pe 25 fps) uye 24 fps kune akashongedzwa WebP / APNG (ayo anosangana nemamiriro ezvinhu akakura). Kuchinja nekushandisa sarudzo yeframe-rate kana muoneri wako achitsigira iyo yekutanga.

Chii chinoita kuti animation WebP iite mitambo yezwi kubva ku MP4?

Hapana — zvifananidzo zve WebP (GIF, WebP, APNG) hazvina kuchengeta mashoko. Kana uchida mashoko, shandisa video container (MP4, WebM) sezvaungaita nezvifananidzo zvemavhidhiyo.

Ndinogona kuita iyo WebP animation loop kwenguva yakareba sei?

Yeah - iyo loop-count sarudzo inodzora kana WebP ichiita loops pasina kumbobvira (default), inotamba N nguva, kana inotamba chete kamwe. Iyo loop count inochengetwa mu WebP container metadata uye inozivikanwa neese mamodheru ekuona.

Nei yangu WebP ichitaridzika kusvibiswa zvichienzaniswa ne MP4 chigadzirwa?

Zvikonzero zviviri zvinozivikanwa. Pakutanga, kuderera kwefremu-rate: 15 fps WebP kubva ku60 fps MP4 kunodzikira 75% yefremu; gadzirisa nefremu-rate slider. Pakupedzisira, kuwanda kwepalette: GIF inorambidzwa kune 256 mavara uye gradient-heavy MP4 dithers zvakajeka. Tsvaga kune animated WebP yekuvimbika kwese kwese kwevara.

Ndinogona here kubvisa kana kushandura saizi ye MP4 mushure mekuisa WebP?

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