Kushandura AV1 kuti PNG

Chinja Yako AV1 kuti PNG mafaira pasina simba

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Kushandura mafaera zvakasununguka, Pro vashandisi vanogona kushandura zvakawanda zvikuru faira; Kutanga

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Maitiro ekushandura AV1 kuti PNG

Danho 1: Isa yako AV1 mafaira uchishandisa bhatani riri pamusoro kana nekudhonza nekudonhedza.

Danho rechipiri: Dzvanya bhatani rekuti 'Convert' kuti utange kushandura.

Danho rechitatu: Dhawunirodha yako yakashandurwa PNG mafaira

AV1 kuti PNG Mibvunzo Inowanzo bvunzwa Nezvekuchinja

Ndinogona sei kubvisa maframes kubva ku AV1 video se PNG mapikicha?

Upload the AV1 uye mushanduri anopa frame-extraction picker: chero Nth frame, maframes pazvinyorwa zvenguva, kana imwe frame pasecond. Yese yakasarudzwa frame inonyorwa seimwe ye PNG faira uye iyo yakazara seti inounganidzwa muZIP archive yekudhawunirodha. AV1 inonzi isiri-yemahara video codec iyo Alliance for Open Media yakaburitsa muna 2018 seyemutevedzeri weVP9. PNG yakagadzirwa muna 1996 semugadziriso wakasununguka weGIF, uye yaive default lossless image format yewebhu.

Zvinyorwa zvichaonekwa sei mu PNG maframes andinogona kubvisa?

Hapana kana ivo vaive nechokwadi chekutevera. A AV1 inochengeta zvinyorwa sezvavo zvemukati uye mutambi anowana iwo pamusoro pechifananidzo panguva yekutamba, saka iyo yakagadziriswa frame iyo mushanduri anonyora kunze se PNG ine mapikicha akachena pasi. Zvinyorwa zvakavharwa muvideo mushure mekunge zvave AV1 ndezvezvinhu zvakasiyana - panguva iyoyo ivo vanoita chikamu chemufananidzo uye chero frame yakagadzirwa inochengeta iwo.

Ndinogona here kubvisa imwe PNG kubva kune yega yega chikamu che AV1?

Haisi seimwe bhatani chete, asi AV1 inoita kuti zvive nyore: mapepa enyaya anochengetwa mubhokisi sezvavanonzi timestamps, saka ona mapepa enyaya kubva ku file uye pedza mapepa enguva mu field ye timestamp. Unogona kuwana PNG ebhuku rimwe nerimwe, munguva, iyo ndiyo nzira yakanakisisa yekuvaka thumbnails yenguva refu yekurekodha. Izvo zvinongedzo zvisina mapepa enyaya zvinokusiya uchitora mapikicha neziso. AV1 inopa 30% yakaderera kumanikidza kupfuura H.264, uye haina mari yekubhadharisa, saka YouTube neNetflix vanoishandisa.

I PNG output inotsigira kuratidzwa?

Format inoita, asi chizvarwa hachina alpha kuti iite — video frame uye rendered peji ndezvisiri-zviviri-zviviri, saka yega yega pixel inosvika yakaoma. Alpha channel ichiri kushandiswa mushure meizvozvo: zvinoreva kuti unogona kubvisa chinhu kubva ku PNG mushure mekunge uchinja format. PNG ndiyo sarudzo yakakodzera yekuvanza skrini, malogo, mavara eline uye chero chinhu chine mativi akaoma kana kuratidzika — hapana kutsvuka, hapana kutambanudza kwevara.

Ndeipi saizi ye PNG mafaera?

Kukura kupfuura zvaunogona kutarisira, nekuti PNG inochengeta yega yega pixel zvakajeka kupfuura kufungidzira. 1080p ichiri kugara pasi pe2-5 MB uye 4K ichiri kugara pasi pe6-15 MB, saka kutamba kwenguva refu kunowedzera nekukurumidza. Iyi ndiyo kutengesa kwakanaka kana mapikicha achidya kuenderera mberi kwekugadzirisa, uye iyo yakaipa kana vachienda kumusoro kune webpage. PNG inoshandisa DEFLATE compression pamusoro pezvinyorwa zvakachena, saka chero pixel inorarama zvakakwana, pamwe neakazara 8-bit alpha channel.

Pazvipi zvinogadziriswa zvinobuda kubva kune imwe neimwe yePNG frame yakagadzirwa?

Iyo imwecheteyo resolution seAV1 video - 1080p AV1 inogadzira 1920 × 1080 PNG maframes; 4K AV1 inogadzira 3840 × 2160 PNG maframes. Usashandisa kushandura saizi yekushandisa mushure mekubvisa kana iwe uchida thumbnails kana social-media-size crops.

Ndinogona kubvisa chero imwe frame kubva ku AV1 se PNG?

Ndinoda, asi tarisa nehuwandu hwemafaira - 30fps 1-minute AV1 inogadzira 1,800 PNG maframes. Tichazviisa muZIP otomatiki. Kuti uwane mavhidhiyo akareba, sarudzo ye "1 per second" (60 frames) kana mazita enguva anopa mhinduro inonzwisisika.

Idzi PNG mafoto anodzokororwa achachengeta AV1 kuumbwa kwevara?

Yeah - color inogadziriswa nematrix iyo iyo AV1 source inoshandisa (BT.709 yeHD, BT.2020 ye4K HDR). HDR zviwanikwa zvinowedzerwa kune SDR pakuvakirwa ku PNG nekuti akawanda PNG mafomati (PNG, JPG) haagone kuchengeta HDR pixel marudzi.

Ndeipi saizi yefaira yeimwe yakabuda PNG frame?

Kuenderana ne resolution uye PNG codec. 1080p PNG frame ndeye 2 kusvika 5 MB; 1080p JPG pamhando-85 ndeye 200 kusvika 500 KB; 4K PNG ndeye 6 kusvika 15 MB. Panguva yekupedzisira, chero-frame PNG yekubvisa kwe10-minute 1080p AV1 inogadzira ~ 50 GB yese.

Chii chinokonzera kuti PNG ichengete EXIF kamera metadata?

Iyo AV1 yekuchengetera haichengeti EXIF yeframe-per-frame sezvaiita kamera, saka mafaera ePNG anobuda neEXIF yakasununguka. Isu tinoisa `creation_time` nzvimbo inotarisa panzvimbo yenguva yechizvarwa cheframe kuitira kuti ugone kudzokorora kurodha bhokisi nekugadzirisa.

Ndeipi nguva yekutora kweframe kubva ku AV1 kusvika ku PNG?

Frame kuwedzera kwakanyanya - kazhinji 20 kusvika 30% yenguva yekuburitsa pastandard pipeline. 5-minute AV1 → PNG bundle inosvika munguva yenguva yenguva, kunyangwe ichienzaniswa neframe count, nekuti mvura yemvura ndeye PNG encoder, kwete AV1 demuxer.

Ndinogona here kubvisa maframes pazviratidzo zvenguva zvakasiyana mu AV1?

Yeah — iyo advanced sarudzo inogamuchira comma-yakasiyana-siyana bhokisi rezvinyorwa zvenguva (e. g. `00:01:23,00:05:00,00:10:42`) uye inogadzira imwe PNG faira panguva. Inokosha kune thumbnails yechitsauko, scene reference shots, kana thumbnailing yenguva refu yekudzidzisa.

AV1

AV1 yakavhurika, yehumambo-yemahara vhidhiyo yekumanikidza fomati yakagadzirirwa kunyatsoita vhidhiyo kutenderera painternet. Inopa yakakwirira compression kunyatsoshanda pasina kukanganisa maitiro ekuona.

PNG

Mafaira ePNG anotsigira kujeka uye anoshandisa kudzvanywa pasina kurasikirwa, zvichiita kuti akwanise kushandiswa pamifananidzo, malogo, uye mapikicha.