MP4 Izixhobo

Guqula 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 video file?

I-MP4 yindawo yokugcina ividiyo egcina enye okanye ngaphezulu i-video stream, iingoma zesandi, kunye nesihloko esikhethiweyo. Iindawo zokugcina ezahlukeneyo zixhasa ii-codecs ezahlukeneyo, ngoko ukulungelelaniswa kuxhomekeke kumqolo ONokubakho ngaphakathi. I-MP4 eninzi eluhlaza yi-H.264 yevidiyo enesandi se-AAC; isiqulathi 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 lomgangatho 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), kwaye i-multi-track audio ayithembeki ngaphandle kwee-desktop players.

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 uguqula MP4 ukuba enye ifomati yevidiyo?

MP4 sele injongo ebanzi, ngoko ke izizathu zokushiya ziyizinto ezikhethekileyo. Guqula MP4 ukuya kwiWebM ukufaka iwebhu apho ifayile encinci ibalulekile, ukuya kwi MOV xa usebenza kwi Final Cut okanye enye iApple-esemthethweni ipayipi, kwaye ukuya kwi MKV xa ufuna iingoma ezininzi zesandi okanye izihloko ezimdaka ezithwala kwifayile enye.

Ingaba ukuguqulwa kwe-MP4 kuphinde kuphinde kukhowudi ividiyo?

Xa umbhali we-codec ngaphakathi kwe-MP4 uhambelana nomgcini-ziqu wenjongo siyi-remux ngaphandle kokuphinda siyi-code (khawuleza, ngaphandle kokulimala). Xa umbhali we-codec kufuneka atshintshe (umzekelo, i-HEVC ukuya kwi-H.264) ividiyo iphinde ikhowudiwe — ihamba phantsi, ngexabiso elincinci lomgangatho wohlobo.