Guqula MP4 ukuba AV1

Guqula Eyakho MP4 ukuba AV1 amaxwebhu ngokulula

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*Iifayile zicinyiwe emva kweeyure ezingama-24

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Iyalayisha

Indlela yokuguqula MP4 ukuba AV1

Inyathelo 1: Layisha eyakho MP4 iifayile usebenzisa iqhosha elingasentla okanye ngokutsala nokuwisa.

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

Inyathelo lesi-3: Khuphela i-converted yakho AV1 iifayile

MP4 ukuba AV1 Imibuzo Ebuzwa Rhoqo Ngokuguqula

Ndiyiguqula njani ikhowudi i MP4 ukuya kwi AV1 ngaphandle kokulimala komgangatho?

Layisha phezulu ifayile yakho MP4 kwaye umguquli wethu usebenzisa i-CRF-based re-encode ebhekisa kwi-visually-lossless AV1 output (CRF 18 ngokumiselweyo, ngaphantsi = enkulu / umgangatho ophezulu). I-codec ikhethiwe ukuhambelana ne AV1 ibhokisi (H.264 / H.265 / VP9 / AV1 ngokufanelekileyo).

Yeyiphi i-codec esetyenziswa yi-AV1 yemveliso?

Oku kuxhomekeke kwi-container. I-MP4 imiselwe ukuba i-H.264 (uxhaso lokudlala olubanzi); i-MKV ne-WebM imiselwe ukuba i-H.265 ne-VP9 ngokulandelelanayo ukucofa okulungileyo kwi-quality efanayo. Ungacima ukhetho lwe-codec kwizinto ezikhethwayo eziphambili phambi kokuguqula.

Ingaba umculo wam wesandi uya kuqhubeka uguquka MP4 ukuya AV1?

Yes — audio is re-muxed (when MP4 and AV1 share an audio codec) or re-encoded to AAC / Opus / Vorbis depending on what the AV1 container supports. Multi-track audio (commentary, alternate languages) is preserved.

Ndingagcina i-framerate yokuqala xa ndiguqula i-MP4 iye kwi-AV1?

Ngokungagqibekanga, i-framerate ayitshintshwanga (MP4 24fps ihlala i-24fps kwi AV1). Ukuba ufuna ukuyitshintsha (umzekelo. i-interlaced 29.97 → i-progressive 30fps), sebenzisa ukhetho lwe-framerate, oluphatha 3:2 ukutsala ezantsi nokususa u-interlacing kwindlela efanayo.

Yintoni ubungakanani befayili obuhlukileyo phakathi kwe MP4 ne AV1?

I-codec efanayo ephinda i-muxes (umzekelo MP4 → AV1 apho zombini zisebenzisa i-H.264) zivelisa ubungakanani obufanayo. Iinguqulelo ze-codec zingatshintsha ubungakanani ngokumangalisayo: H.264 → H.265 ngokuqhelekileyo iqulethe ifayile kwinqanaba elifanayo lomgangatho obonakalayo; H.264 → VP9 imalunga nokuthelekiswa.

Ingaba ifayili AV1 iyadlala kwi-iPhone / Android / Smart TV?

MP4 / H.264 idlala ngokusemthethweni naphi na. MOV / H.264 idlala kwizixhobo zeApple kunye ne-Smart TVs ezininzi kodwa hayi kwi-Android edala. I-MKV ifuna i-VLC kwi-iOS. Iinketho eziphambili ziquka "ukulungelelanisa isixhobo" esimiselweyo esikhetha i-codec ekhuselekileyo / uthelekiso lwesiqulathi seefayili kwisixhobo esithe nkqo.

Ithatha ixesha elingakanani ukutshintsha ifayili ye-1-iyure MP4 ibe yi AV1?

Oku kuxhomekeke kutshintsho lwe-codec. I-codec efanayo yoku-multiply: 30-60 imizuzwana (akukho kuphinda ukukhowude). Ukuphinda ukhowudi kwi-codec eyahlukileyo: ihlala i-0.3-0.7x ixesha lomthombo kwi-GPU yethu ye-pipeline, ngoko ifayile yeyure enye igqiba kwimizuzu engama-18-40.

Yintoni ubukhulu bokubonisa obuxhaswa yi MP4 ukuya kwi AV1?

Ukuza kuthi ga kwi-8K (7680×4320) kwi-Premium. Abasebenzisi abakhululekileyo baphelelwe lixesha kwi-4K (3840×2160) ngomda wobungakanani befayili. I-HDR metadata (HDR10, Dolby Vision) igcinwa apho zombini MP4 ne AV1 iziqulathi zigcina ixhaswe.

Ingaba i-MP4 yevidiyo yam ifihlakeleyo ngexesha lokuguqulwa?

Ewe - iifayile zevidiyo ezilayishwe phezulu ziqhutywa ngabasebenza ngokuzimeleyo kwaye zicinywe kwimizuzu embalwa yokugqitywa. Asiboni, singagcina, sigcine, okanye sinikezele ngento equlethe. Bona /privacy/ kwifestile yokugcina i-data epheleleyo.

Ndingazicima okanye ndizimise ngexesha lokuguqulwa kwe MP4 ukuya kwi AV1?

Ayikho kwinyathelo elifanayo — sebenzisa /video-trim/ okanye /video-cutter/ ukucima phambi kokuguqula, emva koko ufolose i MP4 → AV1 inyathelo. Ukucima nokutshintsha kwinkqubo ikhawuleza kune-re-encoding ifayile yonke ukujika kuphela.

Kutheni le nto ifayili AV1 imnyama / i-pixelated xa kuthelekiswa nomcebo MP4?

I-bitrate-too-low imiselwe rhoqo. Ukunxulumana kwakhona ukusuka kwi-bitrate ephezulu MP4 ukuya kwi-bitrate ephantsi AV1 kwi-CRF emiselweyo icindezela kakhulu kwimifanekiso ehambayo. Nciphisa i-CRF ukuya kwi-16-18 (okanye misela i-bitrate ecacileyo) kwaye uphinde uqhube ukubuyisa umgangatho.

Ingaba i-MP4 ukuya kwi-AV1 iguqulela ixhasa izihloko ezingaphantsi?

Ewe - iingoma zesicatshulwa esifakiweyo (i-mov_text kwi-MP4, i-SRT/ASS kwi-MKV) zigcinwa xa zombini i MP4 ne AV1 iziqulatho zixhasa. Iingoma zesicatshulwa ezitywiniweyo (ezitywiniweyo) zidlulisa ngokuzenzekelayo kuba ziyinxalenye yesakhelo sevidiyo.