Puas yog qhov suab, video, lossis ob qho tib si?
Qhov cov hom digital no luv luv piav txog cov qauv ntawm MP4 hom ntawv.
Piav qhia
Txawm tias MP4 hom ntawv feem ntau xav tias yog ib qho video encoding algorithm, nws yog ib lub thawv hom uas tuaj yeem muaj hom ntaub ntawv. As Well as muaj peev xwm mus host ntau tus yees duab los yog suab ntws, ib MP4 cov ntaub ntawv yuav khaws cia lwm hom xov xwm xws li dluab thiab txawm subtitles. Qhov tsis meej pem tias MP4 hom yog video-tsuas yog feem ntau los ntawm cov khoom siv yees duab-muaj peev txheej hu ua MP4 players.
Keeb Kwm
Raws li Apple's QuickTime format (.mov), MP4 thawv hom thawj zaug tuaj rau hauv xyoo 2001 raws li ISO / IEC 14496-1: 2001 tus qauv. Tam sim no ntawm version 2 (MPEG-4 Tshooj 14), ISO / IEC 14496-14: 2003 tus qauv raug tso tawm hauv 2003.
Nrov Cov Ntaub Ntawv Nrov
Raws li tau hais yav tas los, MP4 thawv tuaj yeem muaj ntau hom kev qhia tawm thiab tuaj yeem sawv cev tuaj ntawm cov ntaub ntawv txuas ntxiv: