MP4 → AVI

Sinthani Yanu MP4 ku AVI mafayilo mosavuta

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Kukweza

Momwe mungasinthire MP4 ku AVI

Gawo 1: Kwezani yanu MP4 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

MP4 ku AVI Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

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

Ikani fayilo yanu ya MP4 ndipo wosinthira amayendetsa CRF-based re-encode yoyang'anira kutulutsa kwa AVI (CRF 18 mosalekeza, matanthauzo ochepa = fayilo yayikulu / yapamwamba). Codec imasankhidwa kuti igwirizane ndi AVI 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. Zikuoneka kuti pafupifupi aliyense MP4 m'munda ndi H.264 kanema ndi AAC audio; chidebenso mwalamulo ali HEVC, AV1 ndi VP9. 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 MP4?

Sakupezeka kuti asankhidwe, chifukwa AVI 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 AVI kuti wosewerayo azitsitsa. Wosintha akukuwuzani zomwe adachita kuposa kuchotsa nawo mosasamala. AVI alibe native thandizo kwa codecs zamakono, kusinthasintha framerate, softsubs kapena owona kuposa 4 GB popanda hacks, ndi zake per-chunk overhead bloats fayilo.

Kodi AVI angagwiritse ntchito nyimbo zambiri kuposa imodzi?

Ndikoyenera, ndipo ndi chithandizo choyenera pa MP4. AVI imachita chilichonse cha audio monga chida chabwino kwambiri, choncho mgwirizano wachilankhulo chachikhalidwe, dub ndi woyang'anira woyang'anira amatha kukhala m'fayilo imodzi ndi wosewera yemwe amasintha pakati pawo pazosowa. AVI ndi trivially yosavuta, amene ndi chifukwa chake kale camcorders, kusonkhana kagawo, DVD ripping zipangizo ndi Windows-era mapulogalamu onsebebe kutulutsa izo.

Kodi ndingapezebe fayilo patsamba la webusaiti pambuyo posintha MP4 ku AVI?

Sizokha. MP4 imasewera m'masamba onse a masamba; AVI sichichita, chifukwa chake tsamba lophatikizira limabwerera ku download link kapena frame ya wosewera mpira wopanda. Ngati fayiloyo ikuyenera kupezeka patsamba, onetsetsani kuti MP4 ndi webusaitiyi ndipo ganizirani AVI ngati archive kapena kusinthira kokha.

Kodi AVI idzasewera bwino pafoni kapena pa TV?

Sichingakhale choncho. MP4 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, MP4 ndi chotetezeka chokhalamo.

Kodi chimachitika ndi 5.1 surround audio pamene MP4 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 MP4 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.

Kodi ndi codec iti ya kanema yomwe AVI imagwiritsa ntchito?

Izi zimadalira pa AVI 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. AVI ndi Microsoft Audio Video Interleave, anayambitsa mu 1992 pamwamba pa RIFF chunk mtundu - imodzi mwa zaka zakale zinyalalabe m'madera.

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

Ndiko. Ngati MP4 ndi AVI 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 AVI zimathandizira. Audio yokhala ndi ma track ambiri (mawu ofotokoza, mabungwe osiyanasiyana) imasungidwa.

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

Mwa default yeah - 24fps MP4 imakhala 24fps mu AVI; 60fps MP4 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 MP4 kupita ku AVI?

Kodikodi yofananayo imasintha (MP4 H.264 → AVI 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 AVI 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 AVI codec / chidebe chazofunikira zanu.