M4V → AVI

Sinthani Yanu M4V ku AVI mafayilo mosavuta

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Kukweza

Momwe mungasinthire M4V ku AVI

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 AVI mafayilo

M4V ku AVI Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingatani kuti ndibwezeretse M4V ku AVI popanda kuwononga mtundu wa kanema?

Ikani fayilo yanu ya M4V ndipo wosintha amayendetsa CRF-based re-encode yoyang'anira kutulutsa kwa AVI (CRF 18 mosalekeza, matanthauzo ochepa = fayilo yayikulu / yapamwamba). Codec imasankhidwa kuti igwirizane ndi AVI - H.264 kwa MP4 yokhala ndi kutalika, H.265 kwa MKV yokhala ndi kukula, 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. AVI owona anayamba m'mbuyomo m'ma codecs m'madera: kuyembekezera MPEG-4 gawo 2 (DivX / Xvid), Motion JPEG kapena raw uncompressed mafano osati H.264.

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

Sakupezeka kuti asankhidwe, chifukwa AVI siyimakhala ndi ma subtitle olimba kuti azisunga. Pali njira ziwiri zotuluka: kuchotsa nawo pavidiyo nthawi yosintha, yomwe imawapangitsa kukhala okhazikika komanso osasinthika, kapena kuwatumiza ngati.srt osiyana ndi AVI kuti wosewerayo azitsitsa. Wosintha akukuwuzani zomwe adachita kuposa kuchotsa nawo mosasamala. AVI alibe native thandizo kwa codecs zamakono, kusinthasintha frame rate, soft subtitle kapena owona kuposa 4 GB popanda hacks, ndi zake per-chunk overhead bloats fayilo.

Nchifukwa chiyani fayilo yanga M4V siyisintha kukhala AVI?

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 AVI 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. AVI 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.

Kodi chimachitika ndi 5.1 surround audio pamene M4V ikusinthidwa ku AVI?

Idzalowetsedwa ku stereo, chifukwa AVI siyimakhala ndi njira yodalirika ya multichannel. Kulowetsedwa kumagwiritsa ntchito ITU standard coefficients kuti mauthenga m'malo ozungulira azitha kumvetsedwa bwino ndipo ma surrounds amafika pamalo otsika kuposa kugwa. Chomwecho chilichonse chomwe chimadalirika pa malo osiyana a ma channels chidzatha pambuyo pake.

Nchifukwa chiyani ndingasinthire M4V ku mtundu wachikhalidwe monga AVI?

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 AVI ndi chilichonse chokhudzana ndi chilichonse. Kusinthana ndi njira yoyenera yotsika pamlingo, yogulitsidwa m'malo mwa ntchito pa chipangizo chomwe sichingakhale ndi njira ina. AVI ndi trivially yosavuta, amene ndi chifukwa chake kale camcorders, kusonkhana kagawo, DVD ripping zipangizo ndi Windows-era mapulogalamu onsebebe kutulutsa izo.

Kodi ndi codec iti ya video yomwe AVI imagwiritsa ntchito?

Izi zimadalira bokosi la AVI. MP4 imasinthidwa ku H.264 kuti ithandizire kusewera kwa mafoni, mawebusayiti ndi Smart TV. MKV imasinthidwa ku H.265 / HEVC kwa pafupifupi theka la kukula kwa fayilo pazomwe zimafanana. WebM imasinthidwa ku VP9. Zosankha zazikulu zimawonetsera kusankhidwa kwa codec ngati mukufuna kuchotsa. AVI ndi Microsoft Audio Video Interleave, anayambitsa mu 1992 pamwamba pa RIFF chunk mtundu - imodzi mwa zaka zakale zinyalalabe m'ma circulation.

Kodi nyimbo yanga ya audio idzapulumuka ku M4V kupita ku AVI?

Ndiko. Ngati M4V ndi AVI amagawana codec ya audio (mwachitsanzo, onse amagwiritsa ntchito AAC), audio imasinthidwanso popanda kusinthidwanso - bit-identical. Ngati codecs amasiyana, audio imasinthidwa kukhala AAC / Opus / Vorbis malinga ndi zomwe AVI zimathandizira. Audio yokhala ndi ma track ambiri (mawu owonjezera, mabungwe) amasungidwa.

Kodi ndingapeze bwanji chiwonetsero chazithunzi chakale posintha M4V ku AVI?

Mwa default yes - 24fps M4V imakhala 24fps mu AVI; 60fps M4V imakhala 60fps. Ngati mukufuna kusintha mtengo (mwachitsanzo, interlaced 29.97 → progressive 30, kapena 60 → 30 kwa kutsitsa), mfundo ya framerate imayendetsa 3: 2 pulldown, deinterlacing, ndi frame-blending mu gawo limodzi lokha la encoding.

Kodi kukula kwa fayilo isintha bwanji kuchokera ku M4V kupita ku AVI?

Same-codec re-mux (M4V H.264 → AVI H.264 just changing container): nearly identical size. Codec change can swing dramatically: H.264 → H.265 typically halves the file at the same visual quality; VP9 is roughly comparable; AV1 cuts another 20-30% but is slower to encode.

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

MP4 / H.264 imasewera mwachilengedwe pazinthu zonse zamakono. MOV / H.264 imasewera pazinthu za Apple ndi ma TV ambiri koma si nthawi zonse pa Android oyambirira. MKV iyenera VLC pa iOS. WebM ndi browser-first. Zosankha zopitilira muyeso zimaphatikizapo "kugwirizana kwa chipangizo" choyamba chomwe chimasankha chotetezeka AVI codec / chidebe chazolinga zanu.

Kodi ndi nthawi yayitali bwanji kuti musinthe kanema wa 1-hour M4V kuti AVI?

Kusinthanso kwa codec yomweyo ndi nthawi ya 30 mpaka 60 kwa fayilo ya 1-hour. Kodi yokhala ndi codec yokhala ndi codec imagwira ntchito panthawi ya 0.3-0.7x yokhala ndi GPU, kotero 1-hour M4V → AVI imatha m'maola 18-40 malinga ndi resolution ndi codec yofunikira.