M4V → MP4

Sinthani Yanu M4V ku MP4 mafayilo mosavuta

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Kukweza

Momwe mungasinthire M4V ku MP4

Gawo 1: Kwezani yanu M4V 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 MP4 mafayilo

M4V ku MP4 Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingasinthire bwanji M4V kupita ku MP4 popanda kuwononga mtundu wa kanema?

Upload M4V 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 MP4 zotuluka amapereka codec yake chidebe kugwirizana: H.264 kwa MP4, MOV ndi MKV, VP9 kwa WebM. Structurally M4V ndi MP4 - H.264 kapena HEVC ndi AAC - ndi osankhika Apple FairPlay DRM ndi iTunes bokosi metadata. Zikuoneka kuti pafupifupi aliyense MP4 m'munda ndi H.264 kanema ndi AAC audio; chidebenso mwalamulo ali HEVC, AV1 ndi VP9.

My M4V ili ndi maudindo ambiri - kodi onse amapita ku MP4?

Sichoncho. Wosintha amasunga nyimbo imodzi yokhala ndi ma channel ambiri (kapena ma mix amodzi), ndipo amachotsa ena; palibe njira yosankha wina. Kuti mutenge nyimbo ina, remix M4V ndi nyimboyo (VLC kapena ffmpeg angachite izi), kenako muyisinthire. M4V amasunga Chapter olemba, ntchito zojambulajambula ndi subtitle nyimbo mu mawonekedwe a Apple TV app amayembekezera, amene MP4 mosavuta nthawi zambiri amawononga. MP4 amathandiza okha imodzi yotchuka subtitle mtundu (mov_text), ndi multi-traka audio ndi osati olimba m'malo desiki osewera.

Nchifukwa chiyani fayilo yanga M4V siyisintha kukhala MP4?

Zina M4V mafayilo amasinthidwa pa level bitstream ndi sitolo kapena pulogalamu yomwe idatulutsa, ndipo kusinthidwa kwa encrypted stream sikungathe kusinthidwa ndi ife kapena ndi chilichonse popanda chida cha lisensi. Fayilo yomwe mwalemba, kutumiza kunja kapena kutsitsa osatetezedwa imasintha bwino; kugula kwa licensed sichidzachitika, ndipo palibe wosintha yemwe anganene mosasamala kanthu. DRM-kuteteza M4V kugula sangakhale anasinthidwa ndi chilichonse; okha unprotected M4V owona ndi convertable, ndi non-Apple osewera nthawi zambiri ayenera kuwonjezeka anasintha dzina.

Kodi MP4 idzasewera mu browser pamene M4V siyidzachita?

Ndikofunika, ndipo nthawi zambiri ndichifukwa cha kusintha. A M4V wophatikizidwa mu tsamba la webusaiti amasonyeza wosewera wowonongeka kapena kutsitsa, chifukwa masamba a browsers samapereka decoder kwa iye. MP4 amasewera m'masamba mwanjira ya HTML5 video element popanda plugin ndi pulogalamu yakunja. MP4 ndi otetezeka zotheka kutumiza zolinga - aliyense foni, browser, console, wolemba ndi Smart TV anamanga mu zaka zapitazi amasewera izo popanda mapulogalamu atsopano.

Kodi ndi codec iti ya kanema yomwe MP4 imagwiritsa ntchito?

Izi zimadalira MP4 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. MP4 ndi ISO / IEC 14496-14, standardized mu 2001 ndi anachokera pamodzi QuickTime katundu layout MOV ntchito.

Kodi nyimbo yanga ya audio idzapulumuka kusinthidwa kwa M4V kupita ku MP4?

Yes, the main audio track comes through, re-encoded to a codec the MP4 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.

Kodi ndingapeze bwanji mitengo yazithunzi yoyamba pamene ndisintha M4V kupita ku MP4?

Ndiko. Mlingo wa frame umasungidwa ngati simusintha: M4V wa 24 fps umasungidwa ngati 24 fps mu MP4. Mlingo wa Frame umasinthidwa kukhala 60, 30 kapena 24 fps. Amasintha mlingo wa frame okha; sasintha kanemayo kapena kuchotsa 3:2 pulldown.

Kodi kukula kwa fayilo idzasintha bwanji kuchokera ku M4V kupita ku MP4?

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 M4V 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 MP4 idzasewera pa iPhone, Android, ndi Smart TVs?

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 kusinthira kanema wa 1-hour M4V kuti MP4?

Palibe nthawi yokhazikika: izi zimadalira m'lifupi, resolution ndi format wofuna. Kusintha kumayenda pa CPUs ma seva athu ndi mapulogalamu encoders; pali palibe GPU kufulumira. MKV kuti MP4 kapena MOV ndi default kukhazikitsa amakopa kanema mtsinje ndi ndi yosavuta. A re-encode kuti H.264 amatenga nthawi yayitali, ndi WebM (VP9) ndi wotsika kwambiri wofuna, nthawi zambiri mofulumira kuposa H.264 mu ziyesezo zathu.

Kodi ndi chiyani chokwanira chothandizira kwa M4V mpaka MP4?

Wosinthira samakhala ndi chida chokhacho chosinthira; 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 HDR10 mastering metadata, ndipo ndi Quality, Resolution kapena Frame Rate kukhazikitsa ena amodzi amachepetsanso kanema ku 8-bit mtundu, kotero HDR M4V angawoneke kuwala.

Kodi M4V kanema wanga ndi wapadera pamene akusintha kukhala MP4?

Yes. Uploaded M4V owona amachitidwa pa zipangizo zathu zosiyanasiyana, palibe munthu kuganizira iwo, ndipo iwo si nthawi zonse anagawana. Upload ndi zosinthidwa MP4 onse anataya mwamsanga za 24 maola pambuyo kusintha, zomwe zimasiya nthawi kuti download zotsatira.