Cima MP4

I-Free Online MP4 Compressor

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*Iifayile zicinyiwe emva kweeyure ezingama-24

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Iyalayisha

Indlela yokuZicimeza MP4

1 Nciphisa i MP4 videos yakho kwibhokisi ephezulu, okanye ukhethe kwisixhobo sakho - akukho nto yokufakela kwaye akukho akhawunti yokuyenza.

2 Khetha ukuba kunzima kangakanani ukucofa: umgangatho okanye injongo ye bitrate, kwaye ngokuzenzekelayo ubungakanani obuncinane ukuba ubungakanani bubalulekile kuwe ngaphezulu kweenkcukacha.

3 Qala umsebenzi kwaye vumela abasebenzi ukuba baphinde bapakishe ifayile; okuqala wakho akatshintshwanga kwindawo.

4 Uthelekiso lobungakanani obutsha nokuqala, emva koko ulayishe ifayili ecinezelweyo MP4.

Cima MP4 Imibuzo ebuzwa rhoqo

Ndifumana ntoni, kwaye ndingalawula njani utshintshiselwano?

Ifayile enye ecinezelweyo ngengeniso ngalinye, kumgangatho okanye kwinqanaba le-bitrate okhetha kuyo kunokuba kugqibeke okumiselweyo. Ukuba isiphumo asincinci ngokwaneleyo, utshintsho lomlinganiselo okanye ixesha lokuphila luzakwenza ngaphezulu kokutsala umqhubi womgangatho ezantsi.

Ingaba ifayili yam iya kuba ncinci kangakanani?

Oku kugqibwa yimixholo, hayi yisixhobo. Iinkcukacha zomfanekiso kunye nefilimu yegranule imelana nokucinezela; umbala othambileyo, umbhalo kunye noxolo lufa. Ulindeleko oluchanekileyo luyimfuneko enkulu yokuncitshiswa nakweyiphi na into enemimandla emikhulu efana nenye encinci kwimifanekiso exakekileyo okanye i clip ye-high-motion.

Ingaba ifomati yefayili yam itshintsha ukuba ndingagcina ntoni?

Very much so. MP4 yindawo ekhuselekileyo yokuhanjiswa kwempahla: i-H.264 video ene-AAC audio idlala ngokufanelekileyo kwifowuni, kwibrowser neTV ngaphandle kwe-codec pack. That determines both the headroom available and whether the saving costs you anything in fidelity.

Ingaba kukho into ekhethekileyo kwi MP4 endimele ndiyazi phambi kokuba ndicofe?

Yes — I-MP4 igcina isalathisi sayo kwi-moov atom, ngoko ukudlulisa-ukukopa ukuhlela kufutshane-nokukhawuleza kwaye isiphumo sihlala sikhangela kakuhle kwisikhangeli. It is worth knowing before you overwrite an original you might need again.

Ingaba i Cima MP4 iya kunyusa ubunjani be MP4 videos yam?

Oku kuxhomekeke ekubeni umsebenzi ufuna ukucoda kwakhona. Umsebenzi oqhagamshelana kuphela nomgquba okanye umgca wexesha wenziwe njengekopi yokuhamba kwaye umfanekiso ufana ne-bit-to-source. Nantoni na efuna ukuzoba kwakhona iframes ihamba nge x264/x265 kwinqanaba lomgangatho omiselweyo, apho i-CRF 23 ibonisa ngokucacileyo kwimifanekiso emininzi.

Ndingaqhuba i Cima MP4 kwi MP4 videos ezininzi ngaxeshanye?

Ewe. Ikhupha umqulu ngokuthe tye, obalulekileyo apha kunaphi na apho kuba imisebenzi yevidiyo yimizuzu kunokuba yimizuzwana. Iiakhawunti ezikhululekileyo ziqhuba ifayile enye ngexesha; i pass iphakamisa loo nto.

Yintoni eyenza i-audio, isicatshulwa esingaphantsi kunye nengoma yesiqalo?

Zithunyelwa ngaphaya. Iindlela ezininzi zosandi, iindlela ezifakwe phantsi zesihloko kunye nabaphawuli besiqendu baphila apho injongo yomgcini ingabonisa khona - le nto iphambili ehlula umsebenzi olungileyo ukusuka kwi naive re- encoding egcina ngokucothayo kuphela indlela enye.

Ingaba i Cima MP4 ibiza nantoni na?

Umhlathi Cima MP4 ukhululekile ngaphandle kwe-akhawunti, kwaye i-output ayikho i-watermark, akukho phawu lwekona kwaye akukho khadi le-intro. Ividiyo elayishwe phezulu isuswa kubasebenzi emva kokuba umsebenzi ugqityiwe.

Kutheni i WebM inxuwa liququzelela Cima MP4?

WEBM.to ibekwe phantsi kwebhokisi ye-web evulekileyo ekhethiweyo — VP9 okanye AV1 nge-Opus audio, ikhowudiwe ngokusemthethweni ngazo zonke iziphequluli zexesha elidlulileyo kwaye ayifuni iplugin, ilayisensi okanye umdlali. Ividiyo yimeko apho izithuthi ezijikelezayo ezingaphezulu zibuhlungu kakhulu - iifayile zikhulu kwaye zonke ukukhuphela zibiza iiyure ezilungileyo. Ukusebenza Cima MP4 kwindlela yokuhambisa i-pipeline efanayo njengeeguqulelo kuthetha ukuba ukukhuphela omnye ugubungela umsebenzi wonke endaweni yokukhuphela omnye kwisixhobo ngasinye.

Ndiza kwenza ntoni ngeziphumo xa i Cima MP4 igqityiwe?

Umguquli kule ndawo uhambisa ividiyo phakathi kweWebM, MP4, MKV, MOV kunye nezinye, okanye utsala umculo ophumayo ngokupheleleyo, ngaphandle kokukhuphela enye. Ukulandelela okunjalo kubaluleke kakhulu kwividiyo kunezinye iindawo: ukuphinda- ukhowudi nganye kuhlobo olunye, ngoko ke, xa kuncinci kwabo phakathi kombhalo kunye nefayile opapashayo, ibonakale ingcono.

Ingaba Cima MP4 apha isixhobo esifanayo esisebenza kumasayithi afana nalowo?

Iinjini zinikezelwa - i-ffmpeg enye yokwakha nge x264, x265 ne libvpx, abasebenzi abafanayo, amaqondo afanayo. Oku WebM inxuwa lidibanisa kukubona kwiinqanawa ne codecs: ezi zidibanisa zidlala naphi na, ezifuna ukuphinda zikhowudi kwaye ezi zingakopela ngokulula. Oku kuqala kwinyani enye malunga nefomati le nxuwa libizwa emva: I-WebM yi-VP9 okanye i-AV1 ene-Opus yesandi, esiza kuyenza ikhowudi ikwi-browser kodwa esiya kuyenza ikhowudi kwi-desktop editors xa irhweba ngaphakathi.

Ndifuna i-akhawunti, kwaye ngaba kukho into egcinwa?

Akukho akhawunti, kwaye akukho nto igcinwa: ividiyo elayishwe phezulu isuswa kubasebenzi emva kokuba umsebenzi ugqibile, akukho nto ijongwa kwaye akukho nto ikhoyo. Iiakhawunti ezikhululekileyo zikhona kwimbali kunye nobungakanani beqela, hayi kwingeniso.