Yuav Paub
- Ib daim MP4V yog MPEG-4 video file.
- Qhib ib qho nrog VLC, iTunes, thiab lwm cov xov xwm zoo sib xws.
- Siv lub hom phiaj video converter los hloov ib qho mus rau lwm hom video.
Zaj lus no piav qhia tias cov ntaub ntawv MP4V yog dab tsi thiab yuav qhib lossis hloov pauv li cas.
MP4V File yog dab tsi?
MP4V sawv cev rau MPEG-4 video. Nws yog tsim los ntawm Moving Pictures Experts Group (MPEG) raws li ib tug codec siv los compress thiab decompress video ntaub ntawv.
Tej zaum koj yuav tsis pom cov ntaub ntawv video uas muaj. MP4V cov ntaub ntawv txuas ntxiv. Txawm li cas los xij, yog tias koj ua, nws tseem tuaj yeem qhib rau hauv ntau hom media player. Peb muaj qee tus MP4V cov npe hauv qab no.
Yog tias koj pom "MP4V" hauv cov ntsiab lus ntawm cov ntaub ntawv video, nws tsuas yog txhais tau tias cov yees duab tau compressed nrog MP4V codec. Piv txwv li, MP4 yog ib lub thawv yees duab uas siv tau MP4V codec.
Xav paub ntxiv ntawm MP4V Codec
MPEG-4 muab tus qauv piav qhia yuav ua li cas txhawm rau cov ntaub ntawv audio thiab video. Hauv nws yog ob peb ntu uas piav qhia tias qee yam yuav tsum ua haujlwm li cas, ib qho yog video compression, uas yog nyob rau hauv Part 2 ntawm qhov specification.
Yog tias ib qho kev pab cuam lossis khoom siv hais tias nws txhawb MP4V codec, nws, tau kawg, txhais tau hais tias qee yam ntawm cov ntaub ntawv video tau tso cai. Zoo li koj nyeem saum toj no, MP4 yog ib lub thawv hom uas yuav siv MP4V. Txawm li cas los xij, nws tuaj yeem siv H264, MJPB, SVQ3, thiab lwm yam. Muaj cov yeeb yaj kiab nrog. MP4 txuas ntxiv tsis txhais tau tias nws siv MP4V codec.
MP4V-ES sawv cev rau MPEG-4 Video Elemental Stream. MP4V txawv ntawm MP4V-ES nyob rau hauv uas yav dhau los yog cov ntaub ntawv video raw, thaum lub tom kawg yog RTP (real-time thauj raws tu qauv) cov ntaub ntawv uas twb npaj yuav xa mus rau lub RTP network raws tu qauv. Cov txheej txheem no tsuas yog txhawb nqa MP4V thiab H264 codecs.
MP4A yog lub suab codec uas tuaj yeem siv hauv MPEG-4 ntim zoo li MP4. MP1V thiab MP2V yog video codecs ib yam nkaus, tab sis lawv raug xa mus rau MPEG-1 video ntaub ntawv thiab MPEG-2 video ntaub ntawv, feem.
Yuav ua li cas qhib cov ntaub ntawv MP4V
Qee qhov kev pab cuam ib txwm txhawb nqa MP4V codec, uas txhais tau tias koj tuaj yeem qhib MP4V cov ntaub ntawv hauv cov haujlwm ntawd. Nco ntsoov tias thaum cov ntaub ntawv tej zaum yuav yog MP4V cov ntaub ntawv hauv kev nkag siab (vim nws siv cov codec), nws tsis tas yuav muaj qhov txuas ntxiv.
Qee qhov kev pab cuam uas tuaj yeem qhib MP4V cov ntaub ntawv suav nrog VLC, Windows Media Player, Microsoft Windows Video, QuickTime, iTunes, thiab tej zaum yuav muaj qee qhov ntau hom media player.
Muaj ntau hom ntaub ntawv uas qhia cov ntawv zoo sib xws rau MP4V, xws li M4A, M4B, M4P, M4R, thiab M4U (MPEG-4 Playlist) cov ntaub ntawv. Qee cov ntaub ntawv no yuav tsis qhib tib yam li MP4V cov ntaub ntawv vim lawv txhua tus siv rau lub hom phiaj tshwj xeeb.
Yuav hloov ua lwm yam ntaub ntawv MP4V
Xav nrhiav MP4V rau MP4 converter (los yog hom twg koj xav kom txuag tau cov yees duab rau), koj yuav tsum tau txais ib tug video converter raws li cov ntaub ntawv extension uas cov yees duab siv.
Piv txwv li, yog tias koj muaj cov ntaub ntawv 3GP uas siv MP4V codec, tsuas yog nrhiav 3GP video converter.
Nco ntsoov tias cov ntaub ntawv M4V tsis zoo ib yam li MP4V codec. Daim ntawv teev cov video converters pub dawb kuj siv tau los nrhiav M4V rau MP3 converter, ib qho uas txuag M4V rau MP4, thiab lwm yam.
MP4 vs M4V vs MP4V
Lub MP4, M4V, thiab MP4V cov ntaub ntawv txuas ntxiv yog qhov zoo sib xws uas koj tuaj yeem ua yuam kev yooj yim rau lawv cov hom ntaub ntawv tib yam.
Nov yog qhov koj tuaj yeem nkag siab sai sai rau lawv qhov sib txawv:
- MP4: Tus codec thiab lub thawv ntim rau khaws cov suab thiab video hauv ib cov ntaub ntawv xwb.
- M4V: Cov ntaub ntawv MP4 uas tuaj yeem tiv thaiv DRM luam tawm.
- MP4V: Raw MPEG-4 video kwj uas tsis tas yuav tuav hauv lub thawv MP4.
Muaj lwm cov ntaub ntawv txuas ntxiv uas zoo ib yam li qee qhov ntawm no, tab sis qhov ntawd tsis cuam tshuam nrog cov hom uas tau piav qhia hauv nplooj ntawv no. Cov ntaub ntawv P4D, piv txwv li, yog Pix4Dmapper Pro cov ntaub ntawv.
