M4V → WMV

Sinthani Yanu M4V ku WMV mafayilo mosavuta

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Kukweza

Momwe mungasinthire M4V ku WMV

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 WMV mafayilo

M4V ku WMV Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

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

Ikani fayilo yanu ya M4V ndipo wosinthira amayendetsa CRF-based re-encode yoyang'anira kutulutsa kwa WMV (CRF 18 mosalekeza, matanthauzo ochepa = fayilo yayikulu / yapamwamba). Codec imasankhidwa kuti igwirizane ndi WMV kontena - H.264 kwa MP4 yokhala ndi kukula kwakukulu, H.265 kwa MKV yokhala ndi kukula kwakukulu, VP9 kwa WebM, AV1 kwa ma pipelines atsopano. Structurally M4V ndi MP4 - H.264 kapena HEVC ndi AAC - ndi osankhika Apple FairPlay DRM ndi iTunes bokosi metadata. WMV amabweretsa Microsoft yekha VC-1 kapena WMV3 kanema ndi WMA audio - codecs pafupifupi chilichonse kunja kwa Windows decodes mwachilengedwe.

Kodi chimachitika ndi ma subtitle omwe ali mu fayilo yanga M4V?

Sakupezeka kuti asankhidwe, chifukwa WMV siyimakhala ndi ma subtitle olimba kuti azisunga. Pali njira ziwiri zotuluka: kuchotsa nawo pavidiyo panthawi yosintha, zomwe zimawapangitsa kukhala okhazikika komanso osasinthika, kapena kuwatumiza ngati.srt osiyana ndi WMV kuti wosewerayo azitsitsa. Wosintha akukuwuzani zomwe adachita kuposa kuchotsa nawo mosasamala. WMV ndi mwamsanga m'mphepete mwa msewu: macOS, iOS, Android ndi aliyense browser ayenera decoders chitatu, ndi ena WMV owona kunyamula DRM kuti sizingatheke kusintha pa zonse.

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

Sizotsimikizika. M4V imasunga ma audio ambiri monga ma tracks achiwiri, koma WMV kusewera kuthandizira pambuyo pa gawo loyamba ndilopanda malire, kotero ambiri osewera adzawonetsa imodzi. Sankhani gawo lomwe mukufuna poyamba; ena amaphunzitsidwa bwino ku mafayilo awo oyambirira kuposa kuchoka m'chipinda chokhala ndi ma CD omwe amawateteza. M4V amasunga Chapter olemba, ntchito zojambulajambula ndi subtitle nyimbo mu mawonekedwe a Apple TV app amayembekezera, amene MP4 mosavuta nthawi zambiri amawononga.

Nchifukwa chiyani fayilo yanga M4V siyisintha kukhala WMV?

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 WMV idzasewera bwino pafoni kapena pa TV?

Sichingakhale choncho. M4V imasinthidwa ndi silicon yoperekedwa pafoni, ma tablet ndi ma TV, chifukwa chake imasewera popanda kutulutsa batri. WMV nthawi zambiri imabwerera ku decoding ya mapulogalamu pa hardware yomweyo - kulemera kwa CPU, chipangizo chotentha, ndi ma frame osunthika pa 4K. Kwa chipangizo chofunikira, M4V ndi chotetezeka chokhalamo.

Nchifukwa chiyani ndingasinthire M4V ku mtundu wachikhalidwe monga WMV?

Chifukwa cha zinthu zambiri za hardware zomwe sizikuphunzira chilichonse chokhudzana ndi zinthu zatsopano komanso sizingatheke. DVD osewera, mayunitsi agalimoto, makamera osewera, mawonetsero amakampani ndi zida zambiri zofalitsa zofalitsa zimavomereza WMV ndi chilichonse chokhudzana ndi chilichonse. Kusinthana ndi njira yoyenera yotsika pamlingo, yogulitsidwa m'malo mwa ntchito pa chipangizo chomwe sichingakhale ndi njira ina. WMV compresses bwino kwa zaka zake ndi kumakhala mtundu PowerPoint, atsopano Windows chophimba recorders ndi kampani mabuku a media kuyembekezera.

Kodi ndi codec iti ya kanema yomwe WMV imagwiritsa ntchito?

Izi zimadalira pa WMV kontena. MP4 defaults kuti H.264 kwa kusewera kwamphamvu kwambiri pafoni, masamba, ndi Smart TVs. MKV defaults kuti H.265 / HEVC kwa pafupifupi theka la kukula kwa fayilo pa quality yofanana. WebM defaults kuti VP9. Zosankha zazikulu zimasonyeza kusankha kodek ngati mukufuna kuchotsa. WMV ndi Windows Media Video, Microsoft's ASF-ogwirizana mtundu kuchokera Windows XP nthawi.

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

Ndiko. Ngati M4V ndi WMV amagwiritsa ntchito codec ya audio (mwachitsanzo, onse amagwiritsa ntchito AAC), audio imasinthidwanso popanda kusinthidwanso - bit-identical. Ngati codecs ndi osiyana, audio imasinthidwanso kukhala AAC / Opus / Vorbis malinga ndi zomwe WMV zimathandizira. Audio yokhala ndi ma track ambiri (mawu ofotokoza, mabungwe osiyanasiyana) imasungidwa.

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

Mwa default yeah - 24fps M4V imakhala 24fps mu WMV; 60fps M4V imakhala 60fps. Ngati mukufuna kusintha kuchuluka (mwachitsanzo, kulumikizana 29.97 → kupitilira 30, kapena 60 → 30 kwa kutsitsa), kusankha kwa framerate kumatha kuwongolera 3: 2 kutsitsa, kuchotsa, ndi kuphatikizira ma frame mu gawo limodzi lokha la encoding.

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

Kodikodi yofananayo imasintha (M4V H.264 → WMV H.264 yomwe isintha kontena): kukula kwake kuli pafupifupi chimodzimodzi. Kusintha kwa codec kungayambitse kusinthika kwambiri: H.264 → H.265 nthawi zambiri kumadula fayiloyo panthawi yomweyo; VP9 ndi yofanana; AV1 imadula 20-30% koma ndi yocheperako.

Kodi fayilo ya WMV idzasewera pa iPhone, Android, ndi Smart TVs?

MP4 / H.264 imasewera mosalekeza pazogwiritsa ntchito zonse zamakono. MOV / H.264 imasewera pazogwiritsa ntchito za Apple ndi ma TV ambiri koma si nthawi zonse pa Android oyambirira. MKV iyenera VLC pa iOS. WebM ndi msakatuli woyamba. Zosankha zopitilira muyeso zimaphatikizapo "kugwirizana kwa chipangizo" choyamba chomwe chimasankha chotetezeka kwambiri WMV codec / chidebe chazofunikira zanu.

Kodi ndi nthawi yayitali bwanji kusinthira kanema wa 1-hour M4V kuti WMV?

Kusintha kwa codec yomweyo ndi nthawi ya 30 mpaka 60 kwa fayilo ya 1-hour. Kodidi yokhala ndi codec imagwira ntchito panthawi ya 0.3-0.7x yochokera pa GPU yathu, kotero kuti 1-hour M4V → WMV imatha m'maola 18-40 malinga ndi resolution ndi codec yoyenera.