1Ikani MP4 videos yomwe idatuluka motsutsana ndi njira yoyenera.
2Sankhani kuzungulira kwa katatu kapena katatu kachiwiri, kapena dinani m'mbali mwake ndi kusankha mtundu wa zigawo zomwe zidzawoneke.
3Kugwiritsa ntchito kuzungulira; ma frame ndi ma containers akuwonetsa mamatrix ndi ogwirizana, kotero aliyense wosewera amavomereza pa njira yomwe ndi yotsika.
4Pezani fayilo yosinthidwa ya MP4.
Kusinthanitsa MP4 Mafunso Ofala
Kodi Kusinthanitsa MP4 imasintha fayilo?
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Kuphatikiza apo, a rotation flag ndi kulemba mu chonyamula pamene chida amathandiza mmodzi, amene amafuna palibe re-encode pa zonse; pamene si, ma frame ndi transposed ndi mtsinje ndi re-encoded kamodzi. Quarter turns ndi half turns ndi milandu yofala kwambiri ndipo imatenga njira yotsika mtengo yomwe ilipo pa mtundu.
Kodi ndingasinthire ndi malire a 90 degrees, osati 90 degrees?
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Yaiwala, ngakhale awiri ndi ntchito zosiyanasiyana pansi. A multiple of 90 degrees rearranges opezeka deta; aliyense wina angular ayenera kubwezeretsa gridi ndi kulowa m’mphepete, kotero kuti amawononga resample ndi nthawi zambiri akufuna kujambula kumbuyo.
Amachita. MP4 ndi otetezeka kutumiza chidebe: H.264 kanema ndi AAC audio amasewera pa moyenera pa foni, browser ndi TV popanda codec pakiti. Ichi ndicho chomwe chimatsimikizira ngati chigawo chachiwiri chimayenda mwaulere kapena chimawononga kubwezeretsa koyamba.
Pali china chilichonse chokhudzana ndi MP4 chomwe ndingadziwe?
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Ndikofunika - MP4 amasunga index yake mu moov atomu, kotero stream-kopera kusintha ndi pafupi-mphindi ndi zotsatirabe akufuna bwinobwino mu msakatuli. Ndi chinthu chomwe chimafotokoza chifukwa chake fayilo ikuwoneka bwino m'modzi mwa mapulogalamu ndi kuipa m'modzi.
N’chifukwa chiyani kanema wanga umasewera mozungulira pafoni yanga koma mozungulira pa kompyuta?
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Chifukwa cha kuzungulira kuwonetsedwa ngati maonekedwe a masamba mu chomera, osati kuphika mu chithunzi, ndipo si aliyense wosewera amawerenga izo. Kusinthasintha pano kumagwirizana ndi awiri - ma frame ndi ma matrix amamaliza kugwirizana, kotero clip ndi wolimba m'masamba, wolemba ndi TV.
MP4, MOV, MKV, WebM, AVI, WMV, FLV, 3GP, M4V, MPEG ndi MPG. The chidebe ndi codec ndi zoyeserera pamaso chilichonse amayenda, kotero m'gulu losakanikirana ndi anachita bwino pa fayilo osati anaganiza kuti ndi ofanana.
Kodi pali malire a kukula kwa fayilo pa Kusinthanitsa MP4?
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Yai: maakaunti aulere amapanga kanema mpaka ku 40 MB pa fayilo, mosakayikira chingwe choyamba patsambali; ffmpeg ndi x264, x265 ndi libvpx amachita ntchito, yomwe ndi imodzi mwazinthu zofanana ndi mapulogalamu a desktop video.Video ndi banja limodzi lomwe limakhala lokwanira kwambiri kuti likhale ndi nthawi yotsitsa, osati malire, ndi zomwe mudzawona.
Kodi Kusinthanitsa MP4 idzachepetsa mtundu wa MP4 videos wanga?
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Kutengera ngati ntchitoyo ikufuna kusinthidwanso. Machitidwe omwe amakhudzanso chidebe kapena nthawi yoyamba amachitika ngati kopanira kwa stream ndipo chithunzicho ndi bit-identical ku chiyambi. chilichonse chomwe chiyenera kujambulanso ma frame amapita ku x264 / x265 pamalingaliro abwino omwe mwasankha, komwe CRF 23 ndi wowoneka bwino pazinthu zambiri.
Yai. Uploads queue m'njira yofanana, zomwe zikutanthauza zambiri pano kuposa kulikonse chifukwa ntchito za video ndi mphindi kuposa masekondi. Maakaunti aulere amayendetsa fayilo imodzi panthawi; chilolezo chimatulutsa izi.
Kodi chimachitika chiyani kwa nyimbo za audio, subtitle ndi chapter?
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Audio yambiri, ma subtitle ophatikizidwa ndi masamba olemba masamba amapulumuka komweko komwe konkriti yoyenera imatha kuwaimira - zomwe ndizomwe zimatenga ntchito yabwino kuchokera ku naive re-encode yomwe imasungabe njira imodzi.
Kodi Kusinthanitsa MP4 imawononga chilichonse?
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No. Kusinthanitsa MP4 ndi ufulu popanda akaunti, ndipo kutulutsaku sikumakhala ndi madzi, palibe logo ya corner ndi katundu woyamba. Video yotsitsa imachotsa ntchito za ogwira ntchito pambuyo pomaliza ntchito.
