WMV → BMP

Sinthani Yanu WMV ku BMP mafayilo mosavuta

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Kukweza

Momwe mungasinthire WMV ku BMP

Gawo 1: Kwezani yanu WMV 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

WMV ku BMP Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

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

Kutsitsa WMV 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. WMV ndi Windows Media Video, Microsoft's ASF-ogwirizana mtundu kuchokera Windows XP nthawi. 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. WMV 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 WMV siyimagwiritsa ntchito, chifukwa WMV siyimagwiritsa ntchito mawu osakira omwe angasankhidwe kuti azimitsa. Chomwecho WMV 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. WMV ndi mwamsanga m'mphepete mwa msewu: macOS, iOS, Android ndi aliyense browser ayenera decoders chitatu, ndi ena WMV owona kunyamula DRM kuti sizingatheke kusintha pa zonse.

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 ndi pa chisankho chiyani chomwe chimatuluka pa BMP chiwonetsero chosakira?

Kuwala kofanana ndi WMV kanema - 1080p WMV imapanga 1920 × 1080 BMP ma frame; 4K WMV 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 WMV ngati BMP?

Ndikofunika, koma onetsetsani kuti muwerenge fayilo - 30fps 1-mphindi WMV 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 WMV?

Ndikoyenera - mtundu umasinthidwa ndi mamatrix omwe chiyambi WMV 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 WMV kumabweretsa ~ 50 GB pamodzi.

Kodi BMP yosanduka imasunga metadata ya kamera ya EXIF?

WMV yokhala ndi WMV 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 WMV kupita ku BMP?

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

Kodi ndingagwiritse ntchito ma frame pa nthawi yoyenera mu WMV?

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.

Kodi WMV kanema wanga ndi wapadera pamene ndimachotsa ma frame?

Ndikofunika - mtundu wofanana wa privacy monga pazosintha zonse. Video yochokera ndi BMP yachikhalidwe imatha kuchitidwa m'maola ogwira ntchito osiyana ndi kuchotsa m'maola angapo; palibe kuyankha kwa munthu, palibe kuphunzitsa corpus, palibe kulowa kwachitatu.