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.

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.

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?

Same-codec re-mux (MP4 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 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.

Kodi ndi nthawi yayitali bwanji kusinthira kanema wa 1-hour MP4 kuti AVI?

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 MP4 → AVI imatha m'maola 18-40 malinga ndi resolution ndi codec yoyenera.

Kodi ndi chiyani chokwanira chothandizira kwa MP4 mpaka AVI?

Kufika pa 8K (7680 × 4320) pa maphunziro a Premium. Kusintha kwaulere kumatha ku 4K (3840 × 2160) pogwiritsa ntchito kukula kwa fayilo. HDR metadata (HDR10, HDR10 +, Dolby Vision pamene pali) imatha kuchitika pomwe ma containers a MP4 ndi AVI amathandizira.

Kodi MP4 kanema wanga ndi wapadera pamene akusintha kukhala AVI?

Yai. Uploaded video owona ndi kuchitidwa mu ogwira ntchito osiyana, nthawi zonse anaona ndi munthu, nthawi zonse indexed, ndi kuchotsa m'maola angapo ya kumaliza. retention zenera ndi zolemba pa / privacy / ndi ife kufalitsa palibe maphunziro corpus kuchokera kutsitsa wosuta.

Kodi ndingagwiritse ntchito, kuchotsa, kapena kuzungulira nthawi ya MP4 kupita ku AVI?

Sichingakhale panjira yomweyo - kugwiritsa ntchito / video-trim / kapena / video-cutter / kuti muchepetse koyamba, kenako kuyendetsa kusinthidwa kwa MP4 → AVI. Kusinthanitsa ndi kusinthidwa ndi kosavuta kuposa kubwezeretsa komaliza kwa MP4 kuti muchepetse zithunzi zosagwiritsa ntchito.

N'chifukwa chiyani fayilo ya AVI imawoneka ngati yosawoneka poyerekeza ndi MP4 yochokera?

Kusintha kwa bitrate kuchokera pa high-bitrate MP4 kupita ku default-CRF AVI kumazimitsa kwambiri pazithunzi zokhala ndi mavidiyo ambiri. Sungani CRF mpaka 16-18, kapena gwiritsani ntchito bitrate yoyenera yogwirizana ndi MP4, ndipo AVI idzapezanso chisoni chake.

Kodi wosintha MP4 kupita ku AVI amasamalira ma subtitle?

Ndiyo — ma subtitle ophatikizidwa (mov_text mu MP4, SRT/ASS mu MKV) amasungidwa pamene MP4 ndi AVI ma kontena amawathandizira. Ma subtitle ophatikizidwa (hardsub) amasinthidwa mwamsanga chifukwa amakhala m'ma frame a kanemayo.