AVI → BMP

Sinthani Yanu AVI ku BMP mafayilo mosavuta

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Kukweza

Momwe mungasinthire AVI ku BMP

Gawo 1: Kwezani yanu AVI mafayilo pogwiritsa ntchito batani lomwe lili pamwambapa kapena pokoka ndi kugwetsa.

Gawo 2: Dinani batani la 'Convert' kuti muyambe kusintha.

Gawo 3: Tsitsani pulogalamu yanu yosinthidwa BMP mafayilo

AVI ku BMP Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingagwiritse ntchito ma frame kuchokera ku AVI kanema ngati BMP zithunzi?

Kutsitsa AVI ndi wosintha amasonyeza chisankho cha frame-extraction: chilichonse cha Nth frame, ma frame panthawi yofunikira, kapena chiwonetsero chimodzi pasecond. Chosankha chilichonse chimayikidwa ngati fayilo ya BMP ndipo zonse zimayikidwa mu archive ya ZIP yotsitsa. AVI ndi Microsoft Audio Video Interleave, anayambitsa mu 1992 pamwamba pa RIFF chunk mtundu - imodzi mwa zaka zakale zinyalalabe m'madera. BMP ndi Windows Bitmap, raw raster mtundu anamanga mu Windows kuyambira 1985.

N’chifukwa chiyani ma frame anga otsalira ali ndi ma liwiro ozungulira omwe amapita mwawo?

Chifukwa cha zomwe zimachokera. AVI zomwe zili ndi zofalitsa ndi DVD zimasunga madera awiri apakati pamphepete mwa mbale, zomwe zimatha kuwonetsedwa ndi theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka la theka

Kodi ndingapeze ma frame a BMP osagwiritsa ntchito mawu oyamba?

Ngati AVI siyimagwiritsa ntchito, chifukwa AVI siyimagwiritsa ntchito mawu osakira omwe angasankhidwe kuti azimitsa. Chomwecho AVI chikuwonetsa pazenera ndi chithunzicho, choncho ndicho chilichonse BMP chotulutsa chimapanga ndipo palibe chosankha chomwe chimachotsa pambuyo pake. Mukapeza fayilo yosiyana ya mawu osakira pamodzi ndi kanema, chotsani kuchokera kuzinthu zomwe zidatenga ma frame awiri osiyana. AVI alibe native thandizo kwa codecs zamakono, kusinthasintha framerate, softsubs kapena owona kuposa 4 GB popanda hacks, ndi zake per-chunk overhead bloats fayilo.

Kodi ndi chiyani chofunikira pa BMP mafayilo?

Kukula kwakukulu kuposa momwe mungayembekezere, chifukwa BMP imasunga ma pixel onse moyenera kuposa kuyerekezera. 1080p imakhalabe pafupi ndi 2-5 MB ndipo 4K imakhalabe pafupi ndi 6-15 MB, kotero kutulutsa kwanthawi yayitali kumawonjezera mwachangu. Izi ndi malonda abwino pamene zithunzi zimatha kutulutsa kuwongolera, ndipo zoyipa pamene zikuyenda mozungulira patsamba la webusaiti. BMP nthawi zambiri amasunga zonse uncompressed pixel mzere ndi ochepa header, chifukwa chake ndi kovuta kwambiri kufotokoza.

Kodi fayilo yayikulu kwambiri ya AVI idzatulutsidwa bwino?

Maakaunti aulere amafika pa 100 MB pa fayilo, ndipo AVI mabungwe amagwira ntchito kwambiri chifukwa mtunduwo umabweretsa ndalama zochuluka pazinthu zowonjezera pavidiyo. Premium imatulutsa katundu kwambiri. Ngati fayilo igawidwa m'magawo owerengeka chifukwa cha mtundu wamtundu, ndikuyika nawo limodzi ndipo amachitidwa ngati ntchito imodzi.

Kodi ndi pa chisankho chiyani chomwe chimatuluka pa BMP chiwonetsero chosakira?

Kuwala kofanana ndi AVI kanema - 1080p AVI imapanga 1920 × 1080 BMP ma frame; 4K AVI imapanga 3840 × 2160 BMP ma frame. Pezani ntchito yosintha kukula pambuyo pochotsa ngati mukufuna zithunzi zochepa kapena zokongoletsera zazing'ono.

Kodi ndingagwiritse ntchito chilichonse cha AVI ngati BMP?

Ndikofunika, koma onetsetsani kuti muwerenge fayilo - 30fps 1-mphindi AVI imapanga 1,800 BMP ma frame. Timawapaka m'ma ZIP mosasintha. Kwa ma clip ochepa, kusankha "1 pa mphindi" (ma frame 60) kapena ma timestamps okhudzana ndi nthawi imapatsa zotsatira zoyenera.

Kodi zithunzi zosakira BMP zidzasunga kujambula kwa AVI?

Ndikoyenera - mtundu umasinthidwa ndi mamatrix omwe chiyambi AVI chimagwiritsa ntchito (BT.709 kwa HD, BT.2020 kwa 4K HDR). Mafuta a HDR amasinthidwa ku SDR pochotsa ku BMP chifukwa ambiri a BMP amtundu (PNG, JPG) sangathe kusungira ma pixel a HDR mwanjira yosadziwika.

Kodi ndi kukula kwa fayilo ya BMP ya frame?

Kutengera pa resolution ndi BMP codec. 1080p PNG frame ndi 2 mpaka 5 MB; 1080p JPG pa quality-85 ndi 200 mpaka 500 KB; 4K PNG ndi 6 mpaka 15 MB. Pamapeto pake, kuchotsa PNG panthawi iliyonse ya 10-mphindi 1080p AVI kumabweretsa ~ 50 GB pamodzi.

Kodi BMP yosanduka imasunga metadata ya kamera ya EXIF?

AVI yokhala ndi AVI siyimasunga EXIF pa frame momwe kamera ikugwirira ntchito, choncho mafayilo a BMP amatuluka ndi EXIF yopanda pake. Timayika `creation_time` yokhala ndi nthawi yoyambira ya frame kuti muthe kubwezeretsa bundle ndi kujambula.

Kodi nthawi yayitali bwanji kuti mutenge ma frame kuchokera ku AVI kupita ku BMP?

Kutulutsa kwa frame ndi kosavuta - nthawi zambiri 20 mpaka 30% ya nthawi yoyambira pa standard pipeline. 5-mphindi AVI → BMP bundle imatha m'miphindi pafupifupi popanda malire a frame count, chifukwa bowa ndi BMP encoder, osati AVI demuxer.

Kodi ndingagwiritse ntchito ma frame pa nthawi yoyenera mu AVI?

Ndiyo — njira yophunzirira imavomereza mndandanda wa ma timestamps ogawidwa ndi koma (mwachitsanzo `00:01:23,00:05:00,00:10:42`) ndipo imapanga fayilo imodzi ya BMP pa timestamp. Ndikothandiza kwa mathumbnails a bokosi, ma shots a scene reference, kapena mathumbnails a maphunziro ochepa.