Tshintsha WMV kuya BMP

Tshintsha WMV kuya BMP amadokhumende ngokulula

Khetha amafayela akho

*Amafayela asusiwe ngemva kwamahora angu-24

Guqula amafayela afinyelela ku-1 GB mahhala, abasebenzisi be-Pro bangaguqula amafayela afinyelela ku-100 GB; Bhalisa manje

Ukulayisha

Indlela yokuguqula WMV kuya BMP

Isinyathelo 1: Layisha eyakho WMV amafayela usebenzisa inkinobho engenhla noma ngokuhudula bese uphonsa.

Isinyathelo 2: Chofoza inkinobho ethi 'Guqula' ukuze uqale ukuguqulwa.

Isinyathelo 3: Landa i-version yakho BMP amafayela

WMV kuya BMP Ukushintsha

Ngiyisusa kanjani ifreyimu kusuka ku WMV ividiyo njenge BMP izithombe?

Layisha phezulu ihele WMV futhi umguquli ubonisa isikhethi sefremu-sokuzisusa: nganoma iyiphi ifremu ye-Nth, amafremu ezikhathini ezicacisiwe, noma ifremu eyodwa ngomzuzu. Ifremu ngayinye ekhethiwe ikhodwe njengehele BMP elilodwa futhi lihlukaniswe njenge-ZIP yokulayisha.

Ngabe isithombe esikhishwayo BMP siphuma ngesinqumo esingakanani?

Ukulungiswa okufanayo njenge WMV ividiyo — umsuka we-1080p ukhiqiza amafreyimu we-1920×1080 BMP; umsuka we-4K ukhiqiza amafreyimu we-3840×2160 BMP. Buyisela ubukhulu ngemuva kokukhishwa uma ufuna amathumbnail amancane.

Ingabe ngizokhipha yonke ifreyimu kusuka kuhele WMV njenge BMP?

Yebo, kodwa qaphela ngokubalwa kwefayela — i-30fps 1-minute video ikhiqiza amafreyimu angu-1,800. Siwafaka ngokuzenzakalela kwi-ZIP archive. Ukusebenzisa ama-clip ade kakhulu sebenzisa "1 per second" (60 frames) noma ama-timestamps athile.

Ingabe izithombe BMP zizogcina umbala WMV olinganiselwe?

Yebo — umbala uqokwa nge-matrix efanayo esetshenziswa umsuka WMV (BT.709 ku-HD, BT.2020 ku-4K HDR). Umsuka we-HDR u-tone-map ku-SDR uma ukhishwa ku-BMP (i-PNG / JPG ayikwazi ukugcina ama-pixels we-HDR ngokujwayelekile).

Yini ubukhulu behele lwesiphequluli esisodwa esikhishwayo BMP?

Kuya ngokuthi usinqumo kanye nokhetho lwe-codec. I-1080p PNG frame yi-2-5 MB; i-1080p JPG quality-85 frame yi-200-500 KB. Ukuphindaphinda nge-frame count ukuze usize i-ZIP — ku-extreme, yonke-frame extracting of a 10-min 1080p video at PNG is ~50 GB.

Ingabe i-BMP ekhishwayo igcina ikhamera EXIF metadata?

I WMV iqoqo aligcinanga i-EXIF yefreyimu ngayinye ngendlela ikhamera ehlala isebenza ngayo, ngakho i BMP amafayela aphuma nge-EXIF engenalutho. Sifaka `creation_time` indawo ekhombisa i-source frame timestamp ukuze uphinde uhlanganise i-bundle.

Ingabe ithatha isikhathi esingakanani ukukhishwa kwefremu kusuka ku WMV kuya ku BMP?

Ukukhishwa kwefremu kushesha - 20-30% yosuku lokusuka ku-standard pipeline. Iminithi engu-5 WMV → BMP iqoqo liphele ngo-1 min ngaphandle kokulinganiselwa kwefremu, ngoba i-bottleneck yi-BMP encoder, hhayi i-demuxer.

Ingabe ngizokhipha amafreyimu ezikhathini ezikhethekile kwi WMV ividiyo?

Yebo - ukhetho oluthuthukisiwe luyamukela uhlu oluhlukaniswe nge-comma lwesikhathi sesikhathi (isibonelo `00:01:23,00:05:00,00:10:42`) futhi lukhiqiza ihele elinye BMP ngesikhathi sesikhathi. Kuhle kuma-thumbnails wesigaba noma izikhangiso zokubhekisa.

Ingabe i-WMV yami yevidiyo ifihlakele ngesikhathi sokukhipha ifreyimu?

Yebo — imodeli yobumfihlo efanayo nezo zonke iziguqulo. Ividiyo yomthombo kanye nefreyimu ekhishwayo iphathwa abasebenza ngokuzimela futhi isuswa ngaphakathi kwemizuzu.

Kungani amafreyimu ami akhishwayo BMP amnyama?

Kuyinto evamile ukushaya umsindo ovela emthonjeni WMV (ikhamera ihamba lapho ifreyimu ithathwa). Zama ukukhetha ama-timestamps kusuka emibonweni ehlala njalo, noma khipha amafreyimu ambalwa azungeze futhi ukhethe ocacile. Ipayipi alikhiqizi ucacile.

Ingabe le thuluzi lixhasa ukukhishwa kwefremu eyodwa ngeshintsho lendawo yokubukela?

Ayikho emfushaneni oyinhloko - sebenzisa "1 ngomzuzwana" njengenketho efana nokulinganiselwa, bese ukhetha ngokubonakalayo amafreyimu oshintsho lwesizinda. Umqolisi okhethekile wokuthola isizinda ukhona kwindlela yokuhamba.

Ingabe ngisebenzisa amafreyimu akhishwayo BMP ngokuhweba?

Yebo, ngaphansi kwelayisense elawula umsuka WMV. Ushintsho lwefomethi alukho ubufakazi — sifaka akukho phawu lwamanzi futhi sicela akukho bufakazi belayisense ku BMP.