WebM ku HLS Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu
Kodi ndingasinthire bwanji WebM kupita ku HLS popanda kuwonongeka kwabwino?
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Upload WebM wanu wapamwamba ndi kuika Quality kwa Quality High mu kusintha options. That re-encodes kanema pa pamwamba kwambiri quality setting (CRF 18 kwa H.264 ndi VP9 zotuluka), yomwe imasunga zambiri za kulipira kwa zikuluzikulu wapamwamba. The default, Balanced, agwiritsa ntchito standard setting. The HLS zotuluka amapereka codec yake chidebe kugwirizana: H.264 kwa MP4, MOV ndi MKV, VP9 kwa WebM.
Kodi ndi codec iti yomwe HLS imagwiritsa ntchito?
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Izi zimadalira HLS chonyamula. MP4, MOV ndi MKV zotuluka kugwiritsa ntchito H.264, amene amasewera pa pafupifupi aliyense foni, browser ndi TV. WebM zotuluka amagwiritsa ntchito VP9. AVI, WMV ndi MPEG zotuluka kugwiritsa ntchito zaka zambiri codecs amene mtundu anapangidwa kwa.
Kodi nyimbo yanga ya audio idzapulumuka kusinthidwa kwa WebM kupita ku HLS?
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Yes, the main audio track comes through, re-encoded to a codec the HLS container plays, for example AAC in MP4 and MOV or Opus in WebM. Most conversions keep only that one track (the one with the most channels), so alternate languages and commentary are dropped. MP4 to MOV, and AVI, WMV, MPEG, FLV, VOB or M4V to MKV, keep every audio track.
Ndiko. Mtengo wa frame umasungidwa mpaka mutasintha: WebM wa 24 fps amakhala 24 fps pa HLS. Mtengo wa Frame umasinthidwanso kukhala 60, 30 kapena 24 fps. Amasintha mtengo wa frame okha; sasintha kanemayo kapena kuchotsa 3:2 pulldown.
Kodi pali kusinthana kwa kukula kwa fayilo pakati pa WebM ndi HLS?
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Kutengera pa zimene zimachitika kwa kanema. MKV kuti MP4 kapena MOV ndi default zoikamo amangosindikiza kanema stream unchanged, kotero kukula amakhazikika pafupi ndi bungwe. Ambiri ena awiri re-encode izo: a high-bitrate WebM nthawi zambiri amatuluka ochepa, pamene kale kwambiri compressed wina angagwiritse ntchito. M'lifupi File pansi Quality amapatsa ochepa zotuluka, ndi H.265 mu Codec kukhazikitsa (MP4, MOV ndi MKV) ndi nthawi zambiri ochepa kuposa H.264 pa quality yofanana koma amasewera pa zipangizo ochepa.
Kodi fayilo ya HLS idzasewera pa iPhone / Android / Smart TV?
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MP4 ndi H.264 amasewera pa pafupifupi aliyense foni, msakatuli ndi TV. MOV ndi H.264 amasewera pa Apple zipangizo ndi TV ambiri koma si pa aliyense wachinyamata Android foni. MKV amafuna app monga VLC pa iOS, ndi WebM ndi kunyumba mu msakatuli. Palibe chipangizo preset pa nkhaniyi, choncho kusankha chitukuko format chipangizo chimathandiza.
Kodi ndi nthawi yayitali bwanji kuti musinthe fayilo ya 1-hour WebM kupita ku HLS?
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Palibe nthawi yokhazikika: izi zimadalira m'lifupi, resolution ndi format wofuna. Kusintha kumayenda pa servers athu CPUs ndi mapulogalamu encoders; pali palibe GPU kufulumira. MKV kuti MP4 kapena MOV ndi default zoikamo akonza kanema stream ndi ndi m'chifupi. A re-encode kuti H.264 amatenga nthawi yayitali, ndi WebM (VP9) ndi wothamanga kwambiri wofuna, nthawi zambiri mofulumira kuposa H.264 mu ziyesezo zathu.
Kodi ndi chiyani chosinthika kwambiri chothandizira kwa WebM mpaka HLS?
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Wosinthira samakhala ndi chida chosinthira chokhacho; liwiro ndi kukula kwa kutsitsa komwe kumaloledwa pa ndondomeko yanu, ndipo chisankho chimakhala ngati chili ngati simusankha 1080p, 720p kapena 480p. Palibe HDR kugwiritsira ntchito kapena kujambula kwa tone. Mukatsitsa kanema (MKV kuti MP4 kapena MOV ndi zosankha zoyambirira), HDR10 imapita mosakhudzana. Kusinthanso kumatha kuchotsa metadata ya HDR10 mastering, ndipo ndi Quality, Resolution kapena Frame Rate kukhazikitsa ena amodzi amachepetsanso kanema ku 8-bit colour, kotero HDR WebM angawoneke kuwala.
Kodi WebM kanema wanga ndi wapadera pamene akukonzekera?
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Yes. Uploaded WebM owona ndi kuchitidwa pa zipangizo zathu zosiyanasiyana, palibe munthu kuganizira iwo, ndipo iwo si nthawi zonse anagawana. Upload ndi zosinthidwa HLS onse anataya mwamsanga za 24 maola pambuyo kusintha, zomwe zimasiya nthawi kuti download zotsatira.
Kodi ndingagwiritse ntchito kapena kuchotsa nthawi ya WebM kupita ku HLS?
