Sinthani MP4 ku AV1

Sinthani Yanu MP4 ku AV1 zolemba molimbika

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Kukweza

Momwe mungasinthire MP4 ku AV1

Gawo 1: Kwezani yanu MP4 mafayilo pogwiritsa ntchito batani lomwe lili pamwambapa kapena pokoka ndi kugwetsa.

Gawo 2: Dinani batani la 'Convert' kuti muyambe kusintha.

Gawo 3: Tsitsani pulogalamu yanu yosinthidwa AV1 mafayilo

MP4 ku AV1 Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingasinthire bwanji MP4 kupita ku AV1 popanda kuwonongeka kwabwino?

Ikani fayilo yanu ya MP4 ndipo wosinthira wathu amagwiritsa ntchito CRF-based re-encode yoyang'anira kutulutsa kwa AV1 (CRF 18 mosalekeza, pansi = kwakukulu / kwakukulu). Codec imasankhidwa kuti igwirizane ndi AV1 kontena (H.264 / H.265 / VP9 / AV1 monga momwe zilili).

Kodi ndi codec iti yomwe AV1 imagwiritsa ntchito?

Izi zimadalira pa galimoto. MP4 defaults kuti H.264 (mkulu playback thandizo); MKV ndi WebM defaults kuti H.265 ndi VP9 mogwirizana kwa bwino compressing pa quality imodzi.

Kodi nyimbo yanga ya audio idzapulumuka kusinthidwa kwa MP4 kupita ku AV1?

Ndiyo — mawu amasinthidwanso (kapena pamene MP4 ndi AV1 amagawana mawu codec) kapena amasinthidwanso kukhala AAC / Opus / Vorbis malinga ndi zomwe AV1 zimapereka. Mauthenga ambiri (mawu owonjezera, mauthenga osiyanasiyana) amasungidwa.

Kodi ndingapeze bwanji mitengo yazithunzi yoyamba pamene ndisintha MP4 kupita ku AV1?

Mwa default, chigawo cha framerate sichisintha (MP4 24fps chimakhala 24fps mu AV1). Ngati mukufuna kusintha (mwachitsanzo, kuphatikizidwa 29.97 → kuwonjezeka 30fps), kugwiritsa ntchito chisankho cha framerate, chomwe chimagwira ntchito yochotsa 3:2 ndi kuchotsa chigawo cha framerate pamodzi.

Kodi pali kusinthana kwa kukula kwa fayilo pakati pa MP4 ndi AV1?

Codec yofanana ndi codec (mwachitsanzo, MP4 → AV1 yomwe imagwiritsidwa ntchito ndi H.264) imapanga kukula kwamtunduwu. Zosintha za Codec zitha kusinthidwa kwambiri: H.264 → H.265 zimatha kuchepetsa fayiloyo pamtundu wofanana; H.264 → VP9 ndi yofanana.

Kodi fayilo ya AV1 idzasewera pa iPhone / Android / Smart TV?

MP4 / H.264 amasewera natively kumwamba. MOV / H.264 amasewera pa Apple zipangizo ndi ambiri Smart TVs koma si pa zaka za m'ma 2000 Android. MKV amafuna VLC pa iOS. Advanced options kuphatikizapo "chida kugwirizana" preset kuti amasankha otetezeka codec / chidebe kugwirizana kwa chipangizo chofuna.

Kodi ndi nthawi yayitali bwanji kuti musinthe fayilo ya 1-hour MP4 kupita ku AV1?

Kusintha kwa codec: 30-60 masekondi (opanda kusinthidwa). Kusintha kwa codec: nthawi zambiri 0.3-0.7x nthawi yoyambira pa GPU yathu, kotero fayilo ya ola limodzi imatha m'maola 18-40.

Kodi ndi chiyani chosinthika kwambiri chothandizira kwa MP4 mpaka AV1?

Kufika pa 8K (7680×4320) pa Premium. Ogwiritsa ntchito aulere ali ndi 4K (3840×2160) pa malire a kukula kwa fayilo. Metadata ya HDR (HDR10, Dolby Vision) imasungidwa pomwe ma kontena a MP4 ndi AV1 amathandizira.

Kodi MP4 kanema wanga ndi wapadera pamene akukonzekera?

Ndikofunika — zolemba za kanema zimathetsedwa m’malo osiyana ndipo zimathetsedwa m’maola ochepa pambuyo pa kumaliza. Tisamawone, tisamasungi, sitisunga kapena sitigawana zinthu.

Kodi ndingagwiritse ntchito kapena kuchotsa nthawi ya MP4 kupita ku AV1?

Sichingakhale panjira yomweyo - kugwiritsa ntchito / video-trim / kapena / video-cutter / kuti muchepetse pambuyo posintha, kenako mupange mndandanda wa MP4 → AV1. Kudula ndi kusintha m'magulu ndi kosavuta kuposa kubwezeretsa fayilo yonse kuti ikhale yolimba.

Nchifukwa chiyani fayilo ya AV1 imawoneka ngati yosawoneka / yosawoneka poyerekeza ndi MP4 yochokera?

Kusintha kwa CRF kuchokera pa bitrate yayikulu MP4 kupita pa bitrate yayikulu kwambiri AV1 kumachepetsa kwambiri pazithunzi zokhala ndi mavidiyo ambiri. Sungani CRF mpaka 16-18 (kapena gwiritsani ntchito bitrate yodziwika bwino) ndipo yesaninso kuti mubwezeretse khalidwe.

Kodi wosintha MP4 kupita ku AV1 amathandizira ma subtitle?

Ndiyo — ma subtitle ophatikizidwa (mov_text mu MP4, SRT/ASS mu MKV) amasungidwa pamene MP4 ndi AV1 ma kontena amawathandizira. Ma subtitle ophatikizidwa (hardsub) amasinthidwa mwamsanga chifukwa ndi gawo la video frame.