Thaum saib cov video files hauv lub khoos phis tawm, tus neeg siv feem ntau tsis ntsib teeb meem. Tab sis qee zaum zaj yeeb yaj kiab tuaj yeem ua si yam tsis muaj suab, lossis txawm tias tsis kam pib txhua. Hauv qhov xwm txheej no, cov lus yuav tshwm tawm tias tus neeg uas ua ntawv tsis tuaj yeem ua hom ntaub ntawv no. Xws li qhov tsis ua haujlwm yog vim qhov tsis muaj qhov tsim nyog qhov txiav tawm ntawm lub khoos phis tawm.
Media cov ntaub ntawv feem ntau yog qhov loj, qee zaus mus txog ob peb gigabytes. Nws tsis yooj yim rau kev siv cov ntaub ntawv zoo li no - tshwj xeeb, lawv nyuaj rau kev xa hla hauv Is Taws Nem. Qhov no muaj tseeb tshwj xeeb tshaj yog thaum xa cov yeeb yaj kiab, rub tawm tuaj yeem siv sijhawm ntau teev. Ua kom zaj duab xis ntau dua, nws yog encoded, uas yog, compressed raws li qee yam algorithm. Cov ntaub ntawv yog txo qis hauv qhov loj me, tab sis xav tau kev txiav txim siab dua hauv kev txiav txim siab ua si nws. Nws yog qhov haujlwm no uas cov neeg txiav txim siab ua haujlwm, tshaj tawm cov ntawv sau thiab xa cov ntaub ntawv rov ua dua tshiab rau kev rov ua dua tshiab.
Lub ntsuas phom yog ib qho kev pab cuam me me, nws tuaj yeem raug cais lossis muaj nyob hauv tus ntaus. Ntawm DVD-players ua nyob rau hauv daim ntawv ntawm cov khoom siv cais, cov tseev tsim ntawm decoders tau muab tso rau hauv lub cim xeeb thiab tsis tuaj yeem hloov pauv. Nrog cov khoos phis tawj, qhov xwm txheej yog qhov txawv, koj tuaj yeem hloov tau yooj yim teeb tsa decoders ntawm lawv. Raws li txoj cai, tus neeg siv feem ntau ua lag luam tsis nrog nrog decoders ntshiab, tab sis nrog codecs - cov programmes uas tuaj yeem sau tau thiab txiav suab ntawm cov ntaub ntawv multimedia. Raws li koj yuav twv, lub npe "codec" yog tsim los ntawm thawj tus tsiaj ntawv ntawm lo lus "encoding" thiab decoding ".
Los ntawm nws tus kheej, tus lej codec feem ntau tsis tuaj yeem ua si cov ntawv, nws txoj haujlwm tsuas yog encode thiab txiav suab. Yog li ntawd, tus lej code nrog rau hauv software ntawm cov players. Piv txwv li, cov neeg nyiam xws li KMPlayer, Lub Teeb Alloy lossis Media Player Classic suav nrog ntau ntawm audio thiab video codec. Ua tsaug rau lawv lub xub ntiag, nws tiav niam txiv kom yooj yim ntxig daim DVD-disc rau hauv tsav thiab saib cov yeeb yaj kiab yam tsis tau xav txog lawv cov encoding.
Koj tuaj yeem pom dab tsi codecs tau nruab rau hauv koj lub computer. Txhawm rau ua li no, nias txoj "My Computer" icon rau ntawm lub desktop, xaiv "Properties". Kev xaiv: qhib "Pib" - "Pawg Tswj Xyuas" - "System". Tom ntej no, mus rau "Hardware" tab, nyem rau "Device Manager" khawm. Hauv ntu "Suab, video thiab game li" nyem ob kab kab "Video codecs" thiab hauv lub qhov rai uas qhib, xaiv "Properties". Koj yuav pom cov npe kab video tso hauv koj lub computer.
