Mtundu wa chidebe cha MP4 ukhoza kusunga makanema, mawu, mawu omasulira, ndi zithunzi mu fayilo imodzi yokhala ndi kukanikiza kwabwino kwambiri.
Ntchito Zofala
Kuonera makanema pa makompyuta ndi mafoni
Kuwonera makanema pa intaneti
Kugawana makanema pa malo ochezera a pa Intaneti
MP4 Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu
Kodi ndi MP4 kanema wapamwamba?
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MP4 ndi video chidebe kuti ali ndi imodzi kapena zambiri video ma streams, audio nyimbo, ndi zosankha subtitle. Zosiyana zidebe kugwirizana codecs zosiyanasiyana, kotero kugwirizana kumadalira onse wrapper ndi zimene zili m'gulu. Zikuoneka kuti pafupifupi aliyense MP4 m'munda ndi H.264 kanema ndi AAC audio; chidebenso mwalamulo ali HEVC, AV1 ndi VP9.
N'chifukwa chiyani aliyense malo ndi chipangizo akufuna MP4 mwapadera?
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MP4 ndi ISO standard osati mtundu wogulitsa, hardware decoders kwa zake zofala payload sitima mu aliyense foni, console, browser ndi TV anagulitsa mu zaka zapitazo, ndi aliyense wolemba ndi kutsitsa fomu amavomereza izo. Cholakwika china ndi kuti kufika, amene ndi chifukwa MP4 ndi nzeru default kutulutsa kwa chilichonse chimene ali ndi basi ntchito. MP4 ndi otetezeka zotheka kutumiza zolinga - aliyense foni, browser, console, wolemba ndi Smart TV anamanga mu zaka zapitazi amasewera izo popanda mapulogalamu zowonjezera.
Popeza foni yam'manja imalemba chilichonse chomwe chimapanga chip yake mu hardware, ndipo MP4 ndi chomwe chimapangidwa ndi silicon. App ya kamera siyifunsa - imalemba mtundu womwe chipangizocho chimatha kupanga panthawi yomaliza yomaliza popanda kutentha. Kusintha pambuyo pake ndi koyenera ndipo sichiwononga chilichonse pazomwe zimafunikira ngati musankha chida chomwe chimasunga ndalama zofanana. MP4 ndi ISO / IEC 14496-14, standardized mu 2001 ndi anachokera pamodzi QuickTime katundu layout MOV ntchito.
Kodi ndingapeze MP4 mu tabu ya browser popanda kukhazikitsa chilichonse?
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Yes - MP4 ndi imodzi mwamapulogalamu amtundu wa kanema omwe amagwiritsa ntchito masamba, chifukwa chake kuchotsa fayilo ku tab kapena kuyika patsamba limagwira ntchito pa desktop ndi mafoni. Izi zimapangitsa kuti zikhale zoyenera kwa chilichonse chomwe chiyenera kusewera patsamba la webusaiti, ndipo ndichifukwa chake kusintha kwa mtunduwu nthawi zambiri ndi njira yofulumira kwambiri ya "vidiyo siyidzasewera patsamba langa".
Kodi ma subtitle m'malo a MP4 amatha kusankhidwa, kapena kuphulika m'zithunzi?
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Chosankha, ngati adawonjezeredwa bwino. MP4 imabweretsa ma subtitle monga ma stream awo okha kudzera pa kanema, kotero woyang'anira angasinthire zinenero, kuzimitsa, kapena kuzisintha m'mpikisano womwe umathandizira. Ma subtitle osungunuka ndi othekanso - ndi pixels okha mu frame - koma ndi okhazikika, ndipo nthawi zina palibe chifukwa chosankha pamene chonyamula chimathandizira chinthu choyenera.
Nchifukwa chiyani pali nyimbo imodzi yokha yomwe imapezeka mu MP4 yanga?
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Chifukwa chake, mtunduwo umatha kuyendetsa bwino. Ma streams ena a audio amatha kulemba mu MP4, koma kusewera kuthandizira pambuyo pa gawo loyamba ndilopanda malire kwambiri kuti zida zambiri zimatenga imodzi ndipo zimachotsa zina. Ngati chiyambi chili ndi ndemanga kapena zinenero zina, chotsani zomwe zili ndi audio files osiyana kuposa kuwapatsa chikwama chomwe chimawala. MP4 amathandiza okha imodzi yotchuka subtitle mtundu (mov_text), ndi multi-traka audio ndi osati olimba m'mphepete mwa desiki osewera.
Kodi kugwiritsa ntchito MP4 kumafunikira chilolezo cha patent?
Kodi ndingasinthe dzina la chidacho popeza MP4 sichisintha?
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Kwambiri nthawi zonse, ndipo ndi bwino kumvetsa chifukwa chake: kuwonjezeka ndi label, pamene bytes m'maganizo ndi zopangidwa kwa mtundu wina mfundo. Kusintha dzina amapanga fayilo amene dzina lake amalonjeza chinachake za zinthu zake sikuti kubweretsa, ndi zimene amatsegula izo kapena amakana fayilo kapena misreads izo. Mmodzi waukulu kulephera ndi awiri mtundu amene ndi weniweni wofanana wonyamula pansi pa dzina losiyana - ndi ngakhale pamenepo bwino rewrap ndi chitetezo kuposa kusintha dzina.
N'chifukwa Convert MP4 kuti wina video mtundu?
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Kusintha MP4 kuti MP4 pamene mukufuna kusewera padziko lonse - webusaiti owerenga, zipangizo zamakono, smart TV ndi kusintha mapulogalamu onse kusewera MP4 natively. Kusintha WebM kwa webusaiti embedding pamene ochepa kukula kwa fayilo zinthu.
Kodi MP4 kusintha re-encode kanema?
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Ngati codec m'ma MP4 ndi yogwirizana ndi chitukuko chofunikira, titha kuwonjezera ma codecs ena (mwachitsanzo, HEVC, H.264) kuti tisinthe kanemayo kuti azikhala ndi mtundu woyenera.
