Sinthani WebM ku HLS

Sinthani Yanu WebM ku HLS zolemba molimbika

Sankhani mafayilo anu

*Mafayilo achotsedwa patatha maola 24

Sinthani mafayilo okwana 1 GB kwaulere, ogwiritsa ntchito Pro amatha kusintha mafayilo okwana 100 GB; Lowani tsopano

Kukweza

Momwe mungasinthire WebM ku HLS

Gawo 1: Kwezani yanu WebM 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 HLS mafayilo

WebM ku HLS Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingasinthire bwanji WebM kupita ku HLS popanda kuwonongeka kwabwino?

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

Kodi ndi codec iti yomwe HLS 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 WebM kupita ku HLS?

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

Kodi ndingapeze bwanji mitengo yazithunzi yoyamba pamene ndisintha WebM kupita ku HLS?

Mwa default, chigawo cha framerate sichisintha (WebM 24fps chimakhala 24fps mu HLS). 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 WebM ndi HLS?

Codec yofanana ndi codec (mwachitsanzo, WebM → HLS 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 HLS 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 WebM kupita ku HLS?

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 WebM mpaka HLS?

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 WebM ndi HLS amathandizira.

Kodi WebM 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 WebM kupita ku HLS?

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

Nchifukwa chiyani fayilo ya HLS imawoneka ngati yosawoneka / yosawoneka poyerekeza ndi WebM yochokera?

Kusintha kwa CRF kuchokera pa bitrate yayikulu WebM kupita pa bitrate yayikulu kwambiri HLS 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 WebM kupita ku HLS amathandizira ma subtitle?

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