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Mai Juyawa 3GP zuwa WebM

Maida Naka 3GP zuwa WebM takardu da wahala

Zaɓi fayilolinku

*An goge fayiloli bayan awanni 24

Canza fayiloli har zuwa 1 GB kyauta, masu amfani da Pro za su iya canza fayiloli har zuwa 100 GB; Yi rijista yanzu

Ana lodawa

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Yadda ake canzawa 3GP zuwa WebM

Mataki 1: Cire 3GP @ action: button

@ action

Mataki 3: Kaɗa ka maida WebM fayiloli


3GP zuwa WebM Tambayoyin da ake yawan yi game da Canzawa

Ta yaya zan sake enkoɗa {daga} zuwa {zuwa} ba tare da asarar inganci ba?
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@ action: button
Yana dogara ne akan abin da ke ciki. MP4 na da diff zuwa H.264 (mafi fadin goyon baya ga wasa); MKV da WebM na da diff zuwa H.265 da VP9 a kansu domin mafi kyawun ƙuntata a matsayin daidai. Za ka iya canza zaɓin codec a cikin zaɓuɓɓukan ci gaba kafin canjawa.
Na'am — an sake-muxed sauti (idan {daga} da {zuwa} sun raba codec na sauti) ko an sake-encode zuwa AAC / Opus / Vorbis dangane da abin da {zuwa} ke goyon baya. An kiyaye sauti mai layuka-da-da yawa (waƙoƙin sharhi, harsuna daban-daban).
A bisa diff, adadin firam bai canja ba ({daga} 24fps yana zaune 24fps a cikin {zuwa}). Idan kana buƙatar canza shi (misali, interlaced 29.97 → progressive 30fps), ka yi amfani da zaɓin adadin firam, wanda ke kula da 3:2 pulldown da deinterlacing a cikin tafiyar guda.
Re-muxes na codec-daidai (misal. {daga} → {zuwa} inda duka suke amfani da H.264) suna samar da girman da ya kusan daidai. Canjin codec na iya juya girman da yawa: H.264 → H.265 na iya raba fayil a matsayin rabinsa da ingancin gani; H.264 → VP9 yana da kama da haka.
MP4 / H.264 wasa natively duk inda. MOV / H.264 wasa a kan Apple na'urorin da mafi Smart TVs amma ba a kan Android da ya fi dacewa. MKV bukatar VLC a kan iOS. Advanced zaɓuɓɓuka sun hada da "na'ura na'ura" preset da ke zaɓar mafi aminci codec / jakar haɗuwa ga na'urar manufa.
Yana dogara da canjin codec. Same-codec re-mux: 30-60 seconds (no re-encode). Re-encode zuwa wani codec daban: a kan 0.3-0.7x lokacin asali a kan GPU pipeline, don haka fayil na sa'a 1 zai ƙare cikin minti 18-40.
Har zuwa 8K (7680×4320) akan Premium. Masu amfani da kyauta ana iyakance su zuwa 4K (3840×2160) bisa iyakar girman fayil. An kiyaye metadata na HDR (HDR10, Dolby Vision) inda {daga} da {zuwa} na cikin akwatuna suke goyon baya.
Na'am — an yi aiki da fayilolin bidiyo da aka tura a cikin ma'aikata masu tsare-tsaren kuma an share su cikin mintina bayan kammalawa. Ba za mu taba gani, adana, riƙe, ko raba abun ciki ba. Ka duba /privacy/ domin tagan riƙe bayanai na cikakke.
Ba a cikin mataki guda ba — amfani da /video-trim/ ko /video-cutter/ don yin yanka kafin canjawa, sa'an nan kuma a sanya mataki na {daga} → {zuwa} cikin jerin. Yin yanka da canjawa cikin jerin yana da sauri fiye da sake-sauya-kodin fayil din gaba ɗaya kawai don yin yanka.
A ko'ina ana amfani da daidaitattun bitrate-too-low. Sake-saukar da alamun shafi daga 3GP mai bitrate mai girma zuwa WebM mai bitrate mai ƙaranci a cikin CRF na diff yana sanya ƙuntata sosai a kan hotunan da suke da motsi mai yawa. Ka saukar da CRF zuwa 16-18 (ko kuma ka ƙayyade bitrate mai bayyana) kuma ka sake-run don dawo da inganci.
Na'am — ana kiyaye waƙoƙin sunaye-na-ƙasa da aka yanka (mov_text a cikin MP4, SRT/ASS a cikin MKV) idan {daga} da {zuwa} na goyon bayan su. Sunaye-na-ƙasa da aka ƙona (hardsub) ana canja su da kansu saboda su ɓangare ne na firam ɗin bidiyo.

3GP

3GP is a popular file format.

WebM

An tsara WebM don yanar gizo, yana ba da watsa bidiyo kyauta tare da lambar VP8/VP9.


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