MPEG → M4V

Guqula Eyakho MPEG kuya M4V 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 MPEG kuya M4V

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

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

Isinyathelo 3: Landa i-version yakho M4V amafayela

MPEG kuya M4V Imibuzo Evame Ukubuzwa Yokuguqulwa

Ngiguqula kanjani i-MPEG ibe yi-M4V ngaphandle kokubuyisela umbhalo ongezansi wevidiyo?

Uma ama-MPEG ne-M4V amabhokisi angaba nesixhumi esifanayo (H.264, H.265, VP9, AV1), umguquli ubuyela emuva ku-remux: ama-streams aphansi akopiwe ngo-byte-by-byte ku-M4V ibhokisi futhi ushintsho lwe-wrapper kuphela. I-remux ye-1 GB MPEG ku-M4V ivame ukuqedwa ngamasekondi angama-5-15 ngaphandle kokulahlekelwa umgangatho.

Ingabe umsindo ogcwele uzoqhubeka nokuguqulwa MPEG kuya ku M4V?

Yebo — wonke umculo ohambayo ku MPEG (umbono womqondisi, izilimi ezihlukile, umculo ochazayo) ugcinwa ku M4V 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 MPEG kuya ku M4V?

Izihloko ezincane ezilula (izihloko ezikhethiwe) zihlala lapho M4V 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 MPEG kuya ku M4V igcina iziphawuli zesiga-nyezi / ukuzula kwe-DVD-style?

Isigaba se-metadata sidlulisa phakathi kuka MPEG no M4V 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-M4V kwenza ifayela elingahlukanisiwe ngaphandle kokuthi uhlanganise iziphawuli ngesandla.

Yini mayelana nezifakiwe ze-MKV (izifomethi, isigqoko somsebenzi) uma usuka ku MPEG usuka ku M4V?

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-MPEG kuya ku-M4V ushiya lezi zifomethi lapho i-M4V ingakho MKV — ama-streams aphansi aguqulwa, kodwa umthwalo oxhunywe uhlala emsuka. Gcina i-MPEG njenge-backup uma uhlala ubheke izifomethi ezixhunywe.

Yini i-codec esetshenziswa yi-M4V ngokuzenzakalela?

I-codec ejwayelekile ikhethiwe ukufana ne M4V 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 MPEG kuya ku-M4V?

I-HDR metadata ehlala njalo (i-HDR10 mastering display values, max content light level) ihamba phambili ku-M4V 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-MPEG ihlala kuphela ku-MKV nge-HEVC; ukushintsha ku-M4V isihlungi esingathwala i-DV layer ihamba phambili ku-HDR10.

Ingabe i MPEG kuya ku M4V igcina ifreyimu eshintshayo (VFR)?

MKV ne WebM zirekhoda ama-timestamps we-frame ngayinye futhi ziphatha i-VFR ngokusemthethweni, ngakho-ke i-MPEG VFR ihlala i M4V 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 MPEG kuya ku-24 / 30 / 60 fps M4V ngezinhloso ezinomthelela.

Kungani ihele lami M4V lincane / likhulu kuna MPEG 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 MPEG (Blu-ray rip) kuya ku-low-bitrate M4V (ukufaka iwebhu) kuyisizathu esivame kakhulu sokulahlekelwa okuningi.

Ingabe i-MPEG kuya ku-M4V 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 MPEG enkulu iye ku-M4V iphele ngokudluliswa kwediski I/O, hhayi i-CPU — i-30 GB MPEG ivame ukudluliswa ku-M4V ngaphansi kwemizuzu ngaphandle kokuqhathaniswa nesinqumo. Iphinde ikhode isilinganiso ngenani le-pixel.

Ingabe ihele lami MPEG liyimfihlo ngesikhathi sokuguqulwa M4V?

Yebo — amafayela alayishwe phezulu MPEG 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 MPEG ihele ngesikhathi sokuguqulwa M4V?

Ayikho kumsebenzi ofanayo - gcina ukuguqulwa kubhekiswe kubhokisi / codec. Sebenzisa /trim/ ukucindezela i MPEG kuqala, bese ufaka i- MPEG -> M4V isikhashana. Ukuxhuma ama-clip amaningi ku-M4V, i- /merge/ ithuluzi lizihlanganisa nge-codec ngayinye (i-remuxes uma izingeniso zihlanganisa i-codec, ziphinde zixhume ngakunye) futhi likhipha i-M4V ifayela elilodwa ekugcineni.

MPEG

I-MPEG (Iqembu Lochwepheshe Bezithombe Ezinyakazayo) iwumndeni wamafomethi wokucindezelwa kwevidiyo nomsindo asetshenziswa kabanzi ukugcinwa kwevidiyo nokudlalwa.