Kusintha AV1 ku Image

Sinthani Yanu AV1 ku Image mafayilo mosavuta

Sankhani mafayilo anu

*Mafayilo achotsedwa patatha maola 24

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Kukweza

Momwe mungasinthire AV1 ku Image

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 Image mafayilo

AV1 ku Image Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingapeze bwanji ma frame kuchokera ku AV1 kanema ngati Image zithunzi?

Kutsitsa kwa AV1 ndi wosintha amatulutsa chisankho cha frame-extraction: chilichonse cha Nth frame, ma frame a nthawi yoyenera, kapena chiwonetsero chimodzi pa mphindi. Chosankha chilichonse chimasinthidwa ngati fayilo ya Image ndipo zonse zimaphatikizidwa mu ZIP archive kuti mutsitsa. AV1 ndi royalty-free video codec Alliance for Open Media anatulutsa mu 2018 monga wotsatira wa VP9. Image pano ndi zofuna zazikulu: wosinthira amasankha raster format zomvetsa chisoni kwa cholinga cha m'malo mwa kuletsa mmodzi pa inu.

Kodi ma subtitle adzawonekera pa Image 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 Image 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 Image 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 Image 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 Image imathandizira kuwala?

Format imagwira ntchito, koma chiyambicho sichimakhala ndi alpha kuti ipereke - ma frame a video ndi masamba opangidwa ndi mawonekedwe owoneka bwino, kotero kuti ma pixel onse amafika molimba. Chingwe cha alpha chimakhala chothandiza pambuyo pake: kumatanthauza kuti mutha kuchotsa chinthu kuchokera ku Image pambuyo pake popanda kusintha mtundu. Kusankha chitukuko mwamsanga kumatanthauza inu mupeza fayilo yomwe imatsegula kulikonse popanda kuganizira za codecs koyamba.

Kodi ndi chiyani chofunikira pa Image mafayilo?

Kukula kwakukulu kuposa momwe mungayembekezere, chifukwa Image 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. Mafuta a photovoltaic amagwiritsa ntchito mphamvu ya dzuwa kuti atenge kutentha kwa dzuwa, ndipo mafuta a photovoltaic amagwiritsa ntchito mphamvu ya dzuwa kuti atenge kutentha kwa dzuwa.

Kodi ndi yankho liti lomwe limatuluka pa Image ya frame yomwe imatulutsidwa?

Kusintha kwachidziwitso chofanana ndi AV1 kanema - 1080p AV1 imapanga 1920 × 1080 Image mafayilo; 4K AV1 imapanga 3840 × 2160 Image mafayilo. Pezani ntchito yosintha kukula pambuyo potulutsa ngati mukufuna mathumbnail ochepa kapena masamba amtundu wa media media.

Kodi ndingagwiritse ntchito chilichonse chamatabwa kuchokera ku AV1 ngati Image?

Ndikuvomereza, koma onetsetsani kuti muwerenge fayilo - 30fps 1-mphindi AV1 imapanga 1,800 Image ma frame. Timawapaka m'manja mwa ZIP mwamsanga. Kwa ma clip ochepa, "1 pa mphindi" (60 ma frame) kapena nthawi yoyenera imapatsa zotsatira zoyenera.

Kodi zithunzi zosakira Image zidzasunga AV1 kujambula kwa mtundu?

Ndikoyenera - mtundu umasinthidwa ndi mamatrix omwe amagwiritsa ntchito AV1 (BT.709 kwa HD, BT.2020 kwa 4K HDR). Ma HDR amapangidwa ndi SDR pazotulutsa ku Image chifukwa cha Image zosiyanasiyana (PNG, JPG) sizingatheke kusungira ma pixels a HDR.

Kodi ndi chiyani kukula kwa fayilo ya chiwonetsero cha Image chosatsegulidwa?

Kutengera pa resolution ndi Image 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, kutulutsa kwa PNG kwa 10-minute 1080p AV1 kumapanga ~ 50 GB pamodzi.

Kodi Image yosanduka imasunga metadata ya kamera ya EXIF?

Kuyika kwa AV1 sikungasungire EXIF pa frame momwe kamera ikugwira ntchito, kotero mafayilo a Image 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 chiwonetsero chazithunzi kuchokera ku AV1 kupita ku Image?

Kutulutsa kwa frame ndi kosavuta - nthawi zambiri 20 mpaka 30% ya nthawi yoyambira pa standard pipeline. 5-mphindi AV1 → Image bundle imatha m'maola pafupifupi mphindi imodzi popanda kusiyana ndi kusiyana kwa frame, chifukwa choletsa ndi Image encoder, si AV1 demuxer.

Kodi ndingagwiritse ntchito ma frame pa nthawi yoyenera mu AV1?

Ndiyo — njira yophunzirira imavomereza mndandanda wa timestamps osiyana ndi koma (mwachitsanzo `00:01:23,00:05:00,00:10:42`) ndipo imapanga fayilo imodzi Image pa timestamp. Ndi zothandiza kwa thumbnails za chapter, scene reference shots, kapena thumbnailing ya maphunziro ochepa.

AV1

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

Image

Mafayilo azithunzi, monga JPG, PNG, ndi GIF, amasunga zambiri zowoneka. Mafayilo awa akhoza kukhala ndi zithunzi, zithunzi, kapena zithunzi. Zithunzi zimagwiritsidwa ntchito m'njira zosiyanasiyana, kuphatikizapo kapangidwe ka mawebusayiti, zida zamagetsi, ndi zojambula zamakalata, kuti apereke zomwe zili ndi zithunzi.