Ukuqonda ukucindezeleka kwe-Lossy ne-Lossless Video
Amavidiyo athatha isikhala esiningi-ukuthi kungakanani okuhluka kakhulu kuye ngokuthi ifomethi yevidiyo, isinqumo kanye nenombolo yamafomu ngomzuzwana owakhethayo. Ukungaxhunyiwe ku-1080 kwevidiyo yevidiyo ye-HD kuthatha cishe u-10.5 GB wesikhala ngomzuzu wevidiyo. Uma usebenzisa i-smartphone ukudubula ividiyo yakho, imidwebo engu-1080p ithatha u-130 MB ngomzuzu wezithombe, ngenkathi ividiyo engu-4K ithatha isikhala esingu-375 MB sefilimu ngayinye yomzuzu. Ngoba kuthatha isikhala esiningi kakhulu, ividiyo kufanele icindezeleke ngaphambi kokuba ifakwe kuwebhu. "Compress" kusho ukuthi ulwazi lugcwele endaweni encane. Kunezinhlobo ezimbili zokucindezela: ukulahleka nokulahlekelwa.
Ukucindezeleka kwe-Lossy
Ukucindezeleka kokulahlekelwa kusho ukuthi ifayela elicindezelweyo linemininingwane embalwa kunayo ifayela lokuqala. Kwezinye izimo, lokhu kuhumusha amafayela ekhwalithi aphansi, ngoba ulwazi "lulahlekile," ngakho igama. Noma kunjalo, ungalahlekelwa imali eningi kakhulu ngaphambi kokuba uqale ukuphawula umehluko. Ukunciphisa ukulahlekelwa kwenzelwa ukulahlekelwa kwekhwalithi ngokukhiqiza amafayela amancane. Isibonelo, ama-DVD acindezelwe esebenzisa ifomethi ye-MPEG-2 , engenza amafayela angama-15 kuya kwangu-30 amancane, kepha ababukeli bavame ukubona ama-DVD njengabaphethe izithombe eziphezulu.
Iningi levidiyo elilayishwa kwi-intanethi isebenzisa ukucindezeleka okulahlekile ukuze kugcinwe usayizi wefayili ngenkathi inikeza umkhiqizo ofanele kakhulu.
Ukucindezeleka okungapheli
Ukuncintisana okungenasici kubonakala sengathi kuthanda, ukucindezela lapho kungekho khona ulwazi olulahlekile. Lokhu akuyona into ewusizo njengokunciphisa ukulahlekelwa ngoba amafayela ngokuvamile aphelile abe nobukhulu obufanayo njengoba ayekhona ngaphambi kokucindezela. Lokhu kungabonakala kungenangqondo, njengokunciphisa usayizi wefayela ngumgomo oyinhloko wokucindezela. Kodwa-ke, uma usayizi wefayela akuyona inkinga, ukusebenzisa imiphumela yokunciphisa okungalahleki esithombeni esiphezulu esiphezulu. Isibonelo, umhleli wevidiyo ohambisa amafayela kusuka kwikhompyutha eyodwa kuya komunye usebenzisa i-hard drive angakhetha ukusebenzisa ukucindezela okungalahleki ukulondoloza ikhwalithi ngenkathi esebenza.