MP4 Izixhobo

Tshintsha MP4 ukuya nokubuya kwiifomathi ezahlukeneyo

Malunga MP4

Ifomathi yesikhongozeli seMP4 inokugcina ividiyo, iaudio, imibhalo engezantsi, kunye nemifanekiso kwifayile enye enoxinzelelo oluhle kakhulu.

Iindlela Ezisetyenziswa Ngazo Eziqhelekileyo

Ukubukela iividiyo kwiikhompyutha nakwizixhobo eziphathwayo
Ukusasaza umxholo wevidiyo kwi-intanethi
Ukwabelana ngeevidiyo kumaqonga eendaba ezentlalo

MP4 Imibuzo Ebuzwa Rhoqo Ngokuguqula

Yintoni i-MP4 ifayile yevidiyo?

I-MP4 yindawo yokugcina ividiyo egcina enye okanye ezininzi i-video streams, ii-tracks zesandi, kunye nezitayile ezikhethiweyo. Iindawo zokugcinwa ezahlukeneyo zixhasa ii-codecs ezahlukeneyo, ngoko ke ukuhambelana kuxhomekeke kumqolo ONokubakho ngaphakathi kwayo. I-MP4 eninzi eluhlaza yi-H.264 yevidiyo enesandi se-AAC; isiqulathi seefayili sigcina ngokusemthethweni i-HEVC, i-AV1 ne-VP9.

Kutheni iwebhusayithi nganye nesixhobo sicela i-MP4 ngokukodwa?

Kuba yifomati enye ethe yavuma kuyo yonke ishishini. MP4 yi ISO eqhelekileyo kunokuba yifomati yomthengisi, i-hardware i-decoders ye-payload yayo eqhelekileyo ehamba nganye ifowuni, console, umkhangeli zincwadi kunye netelevisi ethengisiweyo kwiminyaka elishumi edlulileyo, kwaye wonke umhleli kunye nokukhuphela ifomu iyamkela. Akukho nto enye ekhoyo, nto leyo ibangela i MP4 ibe yimveliso emiselweyo efanelekileyo yento efuna ukuba isebenze ngokulula. I-MP4 yindawo ekhuselekileyo yokunikezelwa kweenkqubo ezifumanekayo - yonke ifowuni, ibrowser, i-console, umhleli kunye neSmart TV eyenziwe kwiminyaka elishumi edlulileyo idlala ngaphandle kwesoftware engaphezulu.

Kutheni le nto ifowuni yam igcina konke njenge MP4?

Kuba isixhobo sefowuni sikhowudisa nantoni na eyenza ichip yayo kwihardware, kwaye MP4 yiyo loo silicon yakhiwa kuyo. Inkqubo yekhamera ayifuni umbuzo - ibhala ifomati yesixhobo esikwaziyo ukuvelisa kwinqanaba le-frame epheleleyo ngaphandle kobushushu. Ukutshintsha emva koko kuqhelekileyo kwaye akubiza nto kwixabiso ukuba ukhetha injongo egcina umthwalo ofanayo. I-MP4 yi-ISO/IEC 14496-14, imiselwe ngo-2001 kwaye ivela kwibhokisi yobeko lwe-QuickTime efanayo ne-MOV esetyenziswa.

Ndingadlala i MP4 kwi-tab yesikhangeli ngaphandle kokufakela nantoni na?

Ewe - MP4 yenye yezona zininzi zefomati zevidiyo ezisebenzisa ikhowudi yendawo, ngoko ukurhoxisa ifayile kwi tab okanye ukudibanisa kwiphepha lisebenza kwi desktop kunye nefowuni ephathekayo. Oku kwenza ukuba kube lukhetho olufanelekileyo lwento ekufuneka idlala kwilayini kwiphepha le web, kwaye yisizathu sokuguqula kolu hlobo luyakuba lugqibo olukhawulezayo lwe "ividiyo ayizukudlala kwiwebhusayithi yam".

Ingaba izihloko ezingaphantsi ngaphakathi kwe MP4 zikhethwa, okanye zitshiswe kumfanekiso?

Iyakhethwa, ukuba yafakwa kakuhle. MP4 ithatha izihloko zesiphelo njengemijelo yabo ekhethekileyo ecaleni kwevidiyo, ngoko umbonisi angatshintsha ulwimi, ayenze isebenze, okanye ayenze kwakhona kumdlali oxhasayo. Izihloko zesiphelo ezitywiniweyo zikwakhona — ziyi-pixels kuphela kwisakhelo — kodwa zihlala zikhona, kwaye akukho nto ibangela ukuba ukhethe xa isiqulatho sixhasa into eyiyo.

Kutheni le nto i-audio track enye kuphela ephila kwi MP4 yam?

Kuba loo nto yonke ifomati ihambisa ngokunyanisekileyo. Iindlela zesandi ezingaphezulu zingabhalwa kwi MP4, kodwa uxhaso lokudlala emva kwesinye esikuqala asihambelani ngokwaneleyo ukuba izixhobo ezininzi zigcine enye kwaye zisuse ezinye. Ukuba umcebo unegqabaza okanye iilwimi ezimbini, khupha ezi zifayili zesandi ezihlukileyo kunokuba uthembele kuzo kwisiqulathi seefayili esifihlayo. I-MP4 ixhasa kuphela ifomati enye ethandwayo yesihloko esingaphantsi (mov_text), nesandi esininzi esingenakuthembeka ngaphandle kwabadlali be-desktop.

Ingaba ukusebenzisa i MP4 kudinga ilayisenisi yepateni?

Ayikuko kuwe. Ii codecs ezibandakanyiweyo ziquka iindidi zepateni, kwaye ilayisensi ibekwe ngabantu abathutha ii decoders - ifowuni, umkhangeli zincwadi, indlela yokusebenza - ixesha elide phambi kokuba ifayile ifike kuwe. Yiyo loo nto ifomati ikho kuyo yonke ihardware kwaye kutheni i royalty- free efana nayo ikhona, kwaye ayitshintshanga nto malunga nokuguqula ifayile oyinayo.

Ndingayinika kwakhona igama elipheleleyo lesiqendu endaweni yokuguqula i MP4?

Akukho nanye, kwaye ifanele ukuqonda kutheni: unikezelo luphawu, ngelixa i bytes ngaphakathi zidityaniswe kwifomati ekhethekileyo. Ukuphinda ubize ifayile ivelisa ifayile igama layo lithembisa into imixholo yayo ayinikezeli, kwaye nantoni na evula ifayile okanye ilahlekile ifayile okanye ifunda ngokungachanekanga. Ukuphela kwendlela efutshane kuhlobo olubini oluyinyani ibhokisi efanayo phantsi kwegama elahlukileyo - kwaye nalapho ukuphinda ubhale ngokuchanekileyo kukhuselekile kunegama elahlukileyo.

Kutheni uguqule MP4 ukuba enye ifomati yevidiyo?

Guqula i-MP4 ibe yi-MP4 xa ufuna ukudlala okubanzi — iiseva ze-web, ii-smart TVs kunye neenkqubo zokuhlela zonke zidlala i-MP4 ngokusemthethweni. Guqula ibe yi-WebM ukudibanisa kwi-web apho ubungakanani befayili obuncinci bubalulekile. Guqula ibe yi-MOV xa usebenza kwi-Final Cut okanye kwezinye ii-Apple-native pipelines.

Ingaba ukuguqulwa kwe-MP4 kubuyisela ikhowudi yevidiyo?

Xa umbhalo-mbhalo ovela kumbhalo-mbhalo ongaphakathi kwe-MP4 uhambelana nendawo emiselweyo yokugcina siyiguqula ngaphandle kokuyiguqula kwakhona (ikhawulezayo, engenakulahleka). Xa umbhalo-mbhalo utshintsha (umzekelo, i-HEVC ukuya kwi-H.264) ividiyo iguqulwa kwakhona — ihamba phantsi, ngexabiso elincinci lomgangatho wexesha elidlulileyo.