MP4 Wiki: MP4, keeb kwm, nta thiab pab ntawm MP4 tus

• Qhov 1. MP4 yog dab tsi
• Qhov 2. Tus me nyuam twb raug MP4
• Qhov 3. Nta MP4
• Qhov 4. Cov kev pab ntawm MP4
• Qhov 5. Kom koj lub MP4 zoo Converter

Qhov 1. MP4 yog dab tsi

Thaum uas feem coob ntawm peb saib los yog ua kom muaj tsos txhua hnub, tsuas ib qho kuj pom ob peb siv sij hawm lawv mus tshawb xyuas cov hom ntawv. Yog tawm tswv yim sib txawv rau txhua qhov operating systems, tab sis qee leej, xws li tus MP4 yuav siv tau ntawm cov platforms ntau, uas ua tau yooj yim heev yais thiab siv.

MP4 yog ib cov multimedia hom ntawv uas muaj peev xwm sawv storing yees duab thiab suab. Nyob rau top tsawv ntawd, nws yuav tau integrate lwm cov ntaub ntawv kom zoo, xws li tseem dluab thiab subtitles, tiam sis kuj rau lus qhia ntau tshaj li zoo xws li 3D graphics, menus thiab cov neeg siv kev sis raug zoo. Qhov no ua ib hom portable thawv ntawv theem ntau Purchased xws li ua tau streaming los yog playback.

Cov hom ntawv MP4 yog raws li cov ntaub ntawv Quicktime hom ntawv. Txawm ntau, nws yuav luag zoo tib yam, tab sis nws tuaj nrog kev them nyiaj yug rau lwm MPEG nta raws li descriptors. Thaum ib tug hom multimedia mas qhov no, koj yuav tau yooj yim embed heev heev hom ntaub ntawv siv lwm yam ntws. Qhov no, ib kem hint khiav yuav yog tsim los rau cov ntsiab lus no. Ntaub ntawv MP4 yeej tseem muaj metadata ua ib txuj, uas yog ib qho tseem ceeb heev.

Muaj ntau ntau hom kev MP4, nyias nrog nws xwb extension. Ua ntej tshaj, MPEG-4 cov ntaub ntawv uas yuav coj tuaj rau .mp4 ncua ntxiv tau peb, ces peb muaj MPEG ntaub ntawv uas muaj cov suab xwb, uas muab cia rau hauv .m4a. Lub MPEG-4 kev bistreams yog encoded m4v ncua ntxiv, uas nws tseem yog ib hom MP4. Koj yuav txawm nrhiav tau thaj ntawm MP4 rau cov .3GP thiab cov .3G2 tawm tswv yim kom zoo.

Qhov 2. Tus me nyuam twb raug MP4

Raws li teev lawm, cov hom ntawv MP4 thawv yog xyuas los ntawm cov kua Quicktime hom ntawv, los yog. MOV. Hom ntawv no ua ntej siv los xyoo 2001 rov qab li tus ISO/IEC 14496-1:2001 txheem, uas tau hloov lawm ob peb xyoos tom qab, nyob rau xyoo 2003 no mus rau lub ISO/IEC 14496-14:2003 txheem.

Due rau lub fact tias MP4 thiab MOV tawm tswv yim siv rau lub tawm tswv yim MPEG-4 tib yam, lawv yuav yooj yim ua hauj lwm ua ke nyob rau ib cheeb tsam QuickTime. Tiam sis, MP4 yog ib co ntau nrov tshaj MOV due rau lub fact tias nws yog faib tau rau lwm yam platforms thiab, tsis tas Macs. Cov no muaj xws li qhov rais, Linux thiab ib tug tibneeg ntau ntau ntawm cov mobile thiab. Koj yuav nrhiav tau nws nyob ib PSP piv txwv li, tab sis kuj video players thiab Blu-duab tshav players thiab. Sib txawv me me yog tswvcuab nyuam qhuav los ntawm hom MOV lwm lub suab multichannel, whereas MP4 tseem lacks them rau qhov ntawd, kawg rau lub sij hawm tau.

Qhov 3. Nta MP4

Ua ntej tshaj, cov ntaub ntawv MP4 muaj ib qhib txuj uas yuav siv tau los ntawm txhua tus neeg. Lawv nqa tag kev them nyiaj yug rau ntau operating systems, uas ua rau cov hom ntawv heev txhim khu kev qha thiab yooj yim rau faib, tej yam uas yog nws kuj nyob hauv lub ntiaj teb kev yees duab thiab lub tawm tswv yim.

Tas, nws twb muaj teeb compression loj thiab yuav ua ntaub ntawv nrog me me me thaum piv rau lwm yam tawm tswv yim. Yog dab tsi zoo kawg thiab yog tias qhov luaj li cas muaj ntaub ntawv tsis yog tam sim ntawd txhais lus nyob hauv cov hluav taws tsis zoo, raws li cov hom ntawv khaws tau yuav luag ib yam zoo li daim tseem cia nrog nws xwb thiaj li cov ntaub ntawv raws li cov lawg hlob hlob, ua tus xaiv zoo meej rau cov sij hawm thaum koj xav kom hlob ib yam dab tsi thiab koj muaj rau tus mus.

Cov hom ntawv MP4 no kuj zoo kawg thiab nyob capturing siab xa ntawv tsis muab rau tej hnov suab plooj, ua rau txhua yam uas teev cia cov video zoo meej. Yuav ua li cas tus ntau, nws puas tseem txaus siab rau cov video lwm yam kev siv koj yuav nrhiav tau. Li no kuj yog ib hom ntawv txheem uas txaus siab rau cov chaw feem ntau uas coj pab video thiab nws yog ib txawm ua tus zoo video hom ntawv rau hauv internet, txawm siv heev hnyav ncawv nraum qhov browser thiab.

Cov muaj ntaub ntawv raws li cov theem ntau cov kev pab cuam rau cov lus, cov kev pab uas koj tau yooj yim noj mus ua nyiaj thaum xaiv ib video hom tshiab, li ntawd feature ib leeg zoo MP4 heev portable thiab yooj yim mus siv/faib. Yog koj nrhiav ib hom ntawv ntawd thiab ua zoo ib yam li nyob rau hauv tag nrho cov video players koj yuav nrhiav tau nws txoj sia thiab rau tas nrho operating systems thiab platforms koj yuav nrhiav tau, ces MP4 yog muaj tseeb rau txoj kev xaiv rau koj.

Qhov 4. Cov kev pab ntawm MP4

Due rau lub fact tias MP4 muaj ib feem xyuam rau cov MOV hom ntawv, koj yuav khiav yeej hom ntaub ntawv ntawm tej Mac raws le lub computer tsis tsimnyog. Hauv yeeb yaj duab commercials thiab lwm yam ntsiab lus video, koj tseem nrhiav tau MP4 rau ntau cov websites, due rau lub fact tias nws yog ib yam uas tsis siv tias ntau qhov chaw cia, thiab uas yog muaj tseeb ib qho uas thaum koj ua ib tug yees duab tshwj xeeb tshaj yog rau cov web.

Lus hais uas, MP4 txawm siv txog Linux, lub platform qhib, thiab muaj cov players qhib qhov uas coj yug kiag rau hom ntawv no kuj muaj coob. Yog ib lub ntsiab platforms koj yuav nrhiav MP4 ntawm tseem tshua qhov rais, thiab ntawm no koj yuav nrhiav tau ib plethora ntawm video players thiab converters uas coj kom zoo dua qhov no zoo yam li zoo.

Ib cov ntsiab siv ho tseem nyob rau MP4 players. Thaum neeg enjoyed qhov MP3 players heev heev thaum lawv nyob due rau lub fact tias lawv yuav mloog lawv lub suab seev tsis muaj teeb meem, tus xav tau ib tug dais portable ua kuj txhawb tau yees duab tuaj mus ua si sai heev. Tias ntawv vim li cas cov MP4 players nyob, thiab yog ib tug dais muaj peev ntawm khiav MP4 yeeb yaj duab ntawm lub rooj me me uas suits cov zaub ntawm tus dais, hos tseem muab tau MP4 thiab txhawb lawv. Qhov no yog vim li cas cov players muaj ib yawm multimedia platform thiab, txawm tias lawv tau nyob rau xyoo no kuj muaj coob, lawv tseem yuav nyob nrog cov lag luam uas tus nqi muag khov kho. Koj kuj thiaj heev heev lwm txheeb rau MP4 thiab, xws li cov DVD players los sis lwm yam li uas tso cai rau koj mus ua si video ntsiab lus.

Qhov 5. Kom koj lub MP4 zoo Converter

MP4 yog ib tug siv lug video hom ntawv; Nws yog siv rau hauv Internet thiab tseem nyob mobile pab kiag li lawm. Qhov zoo tshaj plaws MP4 converter yog UniConverter. Qhov uas yog rau converting MP4 vim tias nws ua haujlwm rau kev kub ceev thiab tsis nyuaj tus yees duab zoo zoo tagnrho. Yog koj sau ib yam dab tsi rau koj mobile ntaus ntawv, koj yuav siv tau nws mus ua DVD los ntau lwm tawm tswv yim. Koj kuj siv tau qhov cuab tam hloov ua lwm yam yees duab los ntawm ntau lwm tawm tswv yim rau MP4 ces koj yuav xa tuaj nyob hauv Internet los faib rau mobile pab kiag li lawm.