MP4 → MKV

Guqula Eyakho MP4 kuya MKV amafayela kalula

Khetha amafayela akho

noma cindezela bese ususa amafayela akho lapha

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Guqula amafayela afinyelela ku-1 GB mahhala, abasebenzisi be-Pro bangaguqula amafayela afinyelela ku-100 GB; Bhalisa manje

Ukulayisha

Indlela yokuguqula MP4 kuya MKV

Isinyathelo 1: Layisha eyakho MP4 amafayela usebenzisa inkinobho engenhla noma ngokuhudula bese uphonsa.

Isinyathelo 2: Chofoza inkinobho ethi 'Guqula' ukuze uqale ukuguqulwa.

Isinyathelo 3: Landa i-version yakho MKV amafayela

MP4 kuya MKV Imibuzo Evame Ukubuzwa Yokuguqulwa

Ngiguqula kanjani i-MP4 ibe yi-MKV ngaphandle kokubuyisela umbhalo ongezansi wevidiyo?

Uma ama-MP4 ne-MKV amabhokisi angaba nesixhumi esifanayo (H.264, H.265, VP9, AV1), umguquli ubuyela emuva ku-remux: ama-streams aphansi akopiwe ngo-byte-by-byte ku-MKV ibhokisi futhi ushintsho lwe-wrapper kuphela. I-remux ye-1 GB MP4 ku-MKV ivame ukuqedwa ngamasekondi angama-5-15 ngaphandle kokulahlekelwa umgangatho.

Ingabe umsindo ogcwele uzoqhubeka nokuguqulwa MP4 kuya ku MKV?

Yebo — wonke umculo ohambayo ku MP4 (umbono womqondisi, izilimi ezihlukile, umculo ochazayo) ugcinwa ku MKV lapho isiqoqi esizosiza umsindo ohambayo oningi. MKV ne MOV ziphatha umculo ohambayo ongenasiphelo; MP4 isekela abaningi kodwa abanye abadlali behardware babona umculo 1 kuphela; WebM iphele ku-Opus / Vorbis umculo owodwa.

Ingabe amabhayisikobho esihloko esingezansi agcinwa uma kuguqulwa MP4 kuya ku MKV?

Izihloko ezincane ezilula (izihloko ezikhethiwe) zihlala lapho MKV zingazithwala: MKV igcina i-SRT, ASS, SSA, PGS, VobSub ngokusemthethweni; MP4 igcina kuphela i-mov_text (ifomethi ephukile). Ukushintsha MKV nge-ASS styled subs ku-MP4 kuzozikhuphula zibe yi-mov_text noma zizicwebezele. Izihloko ezinzima (zicwebezelelwe kwividiyo) zithwale ngaphandle kokungabaza.

Ingabe MP4 kuya ku MKV igcina iziphawuli zesiga-nyezi / ukuzula kwe-DVD-style?

Isigaba se-metadata sidlulisa phakathi kuka MP4 no MKV lapho izihlungi zombili zixhasa isiqephu se-atomi (MKV, MP4, MOV). I-WebM igcina iziqephu kwi-Matroska-compatible block, ngakho-ke i-MKV <-> isigaba se-WebM sihamba ngokuhlanzekile. I-AVI ayinasiqephu esicacisiwe, ngakho-ke ukushintsha i-AVI ibe yi-MKV kwenza ifayela elingahlukanisiwe ngaphandle kokuthi uhlanganise iziphawuli ngesandla.

Yini mayelana nezifakiwe ze-MKV (izifomethi, isigqoko somsebenzi) uma usuka ku MP4 usuka ku MKV?

MKV yindawo yokugcina eyinhloko kuphela egcina amafayela axhunywe ngokuzenzakalela (izifomethi ze-TTF ze-ASS subs, isithombe sokuzivikela se-JPG, izingeniso ze-PDF eziguqulwe nge-fan). Ukusuka ku-MP4 kuya ku-MKV ushiya lezi zifomethi lapho i-MKV ingakho MKV — ama-streams aphansi aguqulwa, kodwa umthwalo oxhunywe uhlala emsuka. Gcina i-MP4 njenge-backup uma uhlala ubheke izifomethi ezixhunywe.

Yini i-codec esetshenziswa yi-MKV ngokuzenzakalela?

I-codec ejwayelekile ikhethiwe ukufana ne MKV isitoreji ngokuzithandela: MKV ikhetha i-H.265 (HEVC) ukucindezela okuhle; MP4 ikhetha i-H.264 ukuxhasa isisetshenziswa esibanzi; WebM ikhetha i-VP9; AVI isebenzisa i-MPEG-4 ASP (DivX/Xvid lineage). Nciphisa nge-codec ethuthukisiwe engezansi — AV1 itholakala ku-MKV / WebM lapho ufuna khona ukucindezela okuphezulu futhi ungalindela ukucindezela.

Ingabe i-HDR (HDR10, Dolby Vision) ihlala isikhathi eside MP4 kuya ku-MKV?

I-HDR metadata ehlala njalo (i-HDR10 mastering display values, max content light level) ihamba phambili ku-MKV uma izihlungi zombili ne-codec ekhethiwe ziyixhasa (HEVC, AV1 ku-MKV / MP4). I-Dolby Vision inamandla kakhulu — i-DV profile 5 / 7 / 8.1 ku-MP4 ihlala kuphela ku-MKV nge-HEVC; ukushintsha ku-MKV isihlungi esingathwala i-DV layer ihamba phambili ku-HDR10.

Ingabe i MP4 kuya ku MKV igcina ifreyimu eshintshayo (VFR)?

MKV ne WebM zirekhoda ama-timestamps we-frame ngayinye futhi ziphatha i-VFR ngokusemthethweni, ngakho-ke i-MP4 VFR ihlala i MKV yalezi fomu ngaphandle kokuphindeka kokuhlolwa. I-MP4 igcina ama-timestamps futhi kodwa abanye abadlali bakholelwa ukuthi i-CFR; umguquli ubonisa "u forza CFR" ukushintsha okuphinda ukuhlolwa kwe-VFR MP4 kuya ku-24 / 30 / 60 fps MKV ngezinhloso ezinomthelela.

Kungani ihele lami MKV lincane / likhulu kuna MP4 ngemuva kokuguqulwa?

I-remux ye-codec efanayo ikhiqiza ubukhulu obufana kakhulu (i-container overhead ihluka ngo-0.1-2%). Ushintsho lwe-codec lungashintsha ubukhulu ngo-50% noma ngaphezulu: H.264 kuya ku-H.265 ngokuvamile kushiya ihele ngaphesheya ngekhwalithi efanayo yokubuka; H.264 kuya ku-AV1 kushiya ihele ngaphesheya futhi ngesinqumo esihamba kancane. Ukusuka ku-high-bitrate MP4 (Blu-ray rip) kuya ku-low-bitrate MKV (ukufaka iwebhu) kuyisizathu esivame kakhulu sokulahlekelwa okuningi.

Ingabe i-MP4 kuya ku-MKV iphatha okuqukethwe kwe-4K / 8K / 60fps?

Yebo kuze kube yi-8K (7680x4320) ku-Premium. Izinga elimahhala liphatha i-4K (3840x2160) kuze kube yi-1 GB yehele. I-pure remuxes (i-codec efanayo edlula) ye MP4 enkulu iye ku-MKV iphele ngokudluliswa kwediski I/O, hhayi i-CPU — i-30 GB MP4 ivame ukudluliswa ku-MKV ngaphansi kwemizuzu ngaphandle kokuqhathaniswa nesinqumo. Iphinde ikhode isilinganiso ngenani le-pixel.

Ingabe ihele lami MP4 liyimfihlo ngesikhathi sokuguqulwa MKV?

Yebo — amafayela alayishwe phezulu MP4 aphathwa ngabasebenzi abahlukanisiwe futhi asuswa emizuzwini edlulele. Sizohlala sibheka, sigcina, sigcina, noma sihlanganisa okuqukethwe. Bona /privacy/ ngefasitela lokugcinwa kwedatha. Ukuguqulwa kwepayipi luyasebenza kumathuluzi esiwalawulayo kusukela ekuqaleni kuya kukuphela; akukho i-API yeqembu lesithathu ethola ifayela lakho.

Ingabe ngizoyicima, ngiyibeke, noma ngiyihlanganise i MP4 ihele ngesikhathi sokuguqulwa MKV?

Ayikho kumsebenzi ofanayo - gcina ukuguqulwa kubhekiswe kubhokisi / codec. Sebenzisa /trim/ ukucindezela i MP4 kuqala, bese ufaka i- MP4 -> MKV isikhashana. Ukuxhuma ama-clip amaningi ku-MKV, i- /merge/ ithuluzi lizihlanganisa nge-codec ngayinye (i-remuxes uma izingeniso zihlanganisa i-codec, ziphinde zixhume ngakunye) futhi likhipha i-MKV ifayela elilodwa ekugcineni.