Sinthani AV1 ku BMP

Sinthani Yanu AV1 ku BMP mafayilo mosavuta

Sankhani mafayilo anu

*Mafayilo achotsedwa patatha maola 24

Sinthani mafayilo okwana 1 GB kwaulere, ogwiritsa ntchito Pro amatha kusintha mafayilo okwana 100 GB; Lowani tsopano

Kukweza

Momwe mungasinthire AV1 ku BMP

Gawo 1: Kwezani yanu AV1 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

AV1 ku BMP Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingagwiritse ntchito ma frame kuchokera ku AV1 kanema ngati BMP zithunzi?

Kutsitsa AV1 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. AV1 ndi royalty-free video codec Alliance for Open Media anatulutsa mu 2018 monga wotsatira wa VP9. BMP ndi Windows Bitmap, raw raster mtundu anamanga mu Windows kuyambira 1985.

Kodi ma subtitle adzawonekera pa BMP ma frame omwe ndimatulutsa?

Sikuti ngati ndi mndandanda wa subtitle wachikhalidwe. A AV1 amasunga ma subtitle monga ma stream awo okha ndipo wosewera amawapanga pazithunzi nthawi yosewera, kotero decoded frame yomwe wosintha amalemba ngati BMP ili ndi pixels oyera pansi. Ma subtitle omwe adasungunuka mu kanemayo asanakhale AV1 ndi nkhani ina - pomwepo ndi gawo la chithunzicho ndipo chilichonse chopangidwa ndi frame chimasunga iwo.

Kodi ndingatenge imodzi mwa BMP kuchokera ku gawo lililonse la AV1?

Si monga batani limodzi, koma AV1 imapangitsa kuti zikhale zosavuta: masamba omarkidwa amasungidwa m'mabokosi monga nthawi yotchedwa, choncho werengani mndandanda wa masamba kuchokera pa fayilo ndi kuika nthawiyo m'malo a nthawi yolemba. Mumapeza BMP imodzi patsamba, m'njira, yomwe ndi njira yodziwika bwino yopanga mathumbnail kwa kujambula kotalika. Mafuta opanda masamba omarkidwa akukupangitsani kusankha mafilimu ndi maso. AV1 amabweretsa pafupifupi 30% yabwino kusamvana kuposa H.264 pa ubwino wofanana ndi kunyamula palibe ndalama latsopano, chifukwa chake YouTube ndi Netflix kunyamula izo.

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 AV1 kanema - 1080p AV1 imapanga 1920 × 1080 BMP ma frame; 4K AV1 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 AV1 ngati BMP?

Ndikofunika, koma onetsetsani kuti muwerenge fayilo - 30fps 1-mphindi AV1 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 AV1?

Ndikoyenera - mtundu umasinthidwa ndi mamatrix omwe chiyambi AV1 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 AV1 kumabweretsa ~ 50 GB pamodzi.

Kodi BMP yosanduka imasunga metadata ya kamera ya EXIF?

AV1 yokhala ndi AV1 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 AV1 kupita ku BMP?

Kutulutsa kwa frame ndi kosavuta - nthawi zambiri 20 mpaka 30% ya nthawi yoyambira pa standard pipeline. 5-mphindi AV1 → BMP bundle imatha m'miphindi pafupifupi popanda malire a frame count, chifukwa bowa ndi BMP encoder, osati AV1 demuxer.

Kodi ndingagwiritse ntchito ma frame pa nthawi yoyenera mu AV1?

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 AV1 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.

AV1

AV1 ndi mawonekedwe otseguka, opanda malipiro a kanema opangidwa kuti aziyenda bwino pa intaneti. Amapereka mphamvu yopondereza kwambiri popanda kusokoneza mawonekedwe.