AVI → MP4

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Kukweza

Momwe mungasinthire AVI ku MP4

Gawo 1: Kwezani yanu AVI 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

AVI ku MP4 Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingasinthire bwanji AVI kupita ku MP4 popanda kubwezeretsa kanema wa kanema?

Ngati ma kontena a AVI ndi MP4 angagwiritse ntchito codec yomweyo (H.264, H.265, VP9, AV1), wosintha amabwerera ku remuxer: ma streams oyamba amakopedwa ndi byte-by-byte ku MP4 kontena ndipo amasintha kokha. Remux ya 1 GB AVI ku MP4 nthawi zambiri imatha m'masekondi a 5-15 ndi kuwonongeka kwabwino.

Kodi ma audio ambiri adzapulumuka kusinthidwa kwa AVI kupita ku MP4?

Ndikoyenera - zonse zolemba za audio mu AVI (kuwunika kwa woyang'anira, mabungwe osiyanasiyana, mawu ofotokoza) amasungidwa mu MP4 pamene chikwama chofunikira chimathandizira ma audio ambiri. MKV ndi MOV amayendetsa ma audio osatha; MP4 amathandizira ambiri koma ena osewera a hardware amawona kokha track 1; WebM imatha pa Opus / Vorbis track.

Kodi ma subtitle amasunga zosunga pamene AVI amasinthidwa kuti MP4?

Ma subtitle olimba (ma tracks osankhika) amapulumuka pamene MP4 angawagwiritse ntchito: MKV amagwiritsa ntchito SRT, ASS, SSA, PGS, VobSub mwachilengedwe; MP4 amagwiritsa ntchito mov_text (format yosasinthasintha). Kusintha MKV ndi subs a ASS ku MP4 kumawawononga kuti akhale mov_text kapena kuwalemba. Hardsubs (olembana mu kanema) amagwiritsa ntchito ngakhale.

Kodi AVI mpaka MP4 amasunga masamba olemba / kuyendera kwa DVD?

Metadata ya bokosi limasintha pakati pa AVI ndi MP4 pamenepo onse awiri amapereka bokosi la atomu (MKV, MP4, MOV). WebM imasunga bokosi m'ma block ogwirizana ndi Matroska, choncho MKV <-> WebM bokosi limayenda molimba. AVI sichimakhala ndi bokosi la spec, choncho kusintha kwa AVI ku MP4 kumabweretsa fayilo yosasinthika ngati simuwonjezera ma markers m'manja.

Kodi ndi chiyani za MKV zowonjezera (fonti, kusindikiza) pamene mukupita AVI ku MP4?

MKV ndi yokha mainstream yokhala ndi ma fayilo ophatikizidwa (TTF fonts for ASS subs, JPG cover art, fan-translated PDF inserts). Kuchokera ku AVI kupita ku MP4 kumachotsa ma attachments pamene MP4 si MKV - ma streams elementary amasinthidwa, koma payload ophatikizidwa amakhala m'malo ochokera. Tengani AVI ngati chitetezo ngati mumatengera ma fonts ophatikizidwa.

Kodi codec yomwe MP4 imagwiritsa ntchito ndi yosasinthika?

Kodiyi ya default imasankhidwa kuti igwirizane ndi MP4 yokhala ndi katundu: MKV imasinthidwa kukhala H.265 (HEVC) kuti ikhale yolimba kwambiri; MP4 imasinthidwa kukhala H.264 kuti ikhale yolimba kwambiri; WebM imasinthidwa kukhala VP9; AVI imagwiritsa ntchito MPEG-4 ASP (DivX / Xvid linage).

Kodi HDR (HDR10, Dolby Vision) imatha bwanji AVI mpaka MP4?

HDR static metadata (HDR10 mastering display values, max content light level) imatha kupita ku MP4 pamene ma kontena awiri ndi codec osankhidwa amathandizira (HEVC, AV1 mu MKV / MP4). Dolby Vision ndi wolimba kwambiri - DV profile 5 / 7 / 8.1 mu AVI nthawi zambiri amapulumuka okha ku MKV ndi HEVC; kusinthidwa ku MP4 kontena lomwe silitha kunyamula gawo la DV limatha ku HDR10.

Kodi wosinthira AVI mpaka MP4 adzasunga kusinthasintha kwa framerate (VFR)?

MKV ndi WebM amalemba ma timestamps a real-frame ndi kuwongolera VFR mwanjira yachibadwa, kotero kuti AVI VFR imatha kukhala ndi MP4 ya mafomuwa popanda kubwezeretsa. MP4 imasunga nthawi yowonjezerapo koma ena osewera amaganiza kuti CFR; wosintha amatulutsa "kulepheretsa CFR" kuti abwezeretse VFR AVI ku 24 / 30 / 60 fps MP4 kwa zolinga zosatheka.

Nchifukwa chiyani fayilo yanga MP4 ndi yaying'ono / yayikulu kuposa AVI pambuyo posintha?

Remux ya codec yomweyo imatulutsa kukula kwakukulu (kuphatikiza kwa kontena kumasiyana ndi 0.1-2%). Kusintha kwa codec kungapangitse kukula kwa 50% kapena kuposa: H.264 kupita ku H.265 kumatha kuchepetsa fayilo pazomwe zimawoneka bwino; H.264 kupita ku AV1 kumatha kuchepetsanso panthawi ya slow.Kuchokera ku high-bitrate AVI (Blu-ray rip) kupita ku low-bitrate MP4 (kutsitsa pa intaneti) ndichifukwa chofala kwambiri cha kugwa kwakukulu.

Kodi wosinthira AVI mpaka MP4 amasamalira 4K / 8K / 60fps?

Ndiyo mpaka 8K (7680x4320) pa Premium. Mlingo wopanda malire umatha 4K (3840x2160) mpaka kumapeto kwa fayilo ya 1 GB. Ma remuxes oyera (kupita kwa codec yofanana) ya AVI yokulirapo kupita ku MP4 amalepheretsa I / O ya diski, osati CPU - 30 GB AVI amasinthanso kupita ku MP4 m'miphindi yochepa popanda kuyankhulana. Amasinthanso kukula ndi kuchuluka kwa ma pixel.

Kodi fayilo yanga AVI ndi yapadera panthawi ya MP4 yosinthira?

Ndikoyenera - mafayilo a AVI omwe adatulutsidwa amachitidwa m'mawu osiyana ndi omwe amagwira ntchito ndipo amasungidwa m'maola angapo a kumaliza. Sitingawone, kusungira, kusungira kapena kugawana zomwe zili. Onani /privacy/ kwa zenera la kusungira deta. Mzere wosintha umagwira ntchito pazinthu zomwe timawongolera kuyambira pachiyambi mpaka pachiyambi; palibe API yachitatu yomwe imalandira fayilo yanu.

Kodi ndingapeze, kuchotsa, kapena kulumikizana ndi AVI mafayilo panthawi ya MP4 yosinthira?

Si pa ntchito yomweyo - onetsetsani kuti kusintha kumakonzekera pa chotengera / codec. Pezani /trim/ kuti muchepetse AVI koyamba, kenako mupange mndandanda wa AVI -> MP4. Kuti mugwirizanitse ma clip angapo m'modzi MP4, chida cha /merge/ chimagwirizana nawo pazomwe zimagwirizana (zimasintha ngati ma input amagawana codec, amasinthanso ngati sichoncho) ndipo amatulutsa fayilo imodzi ya MP4 pamapeto pake.