MPG → PNG

Chinja Yako MPG kuti PNG mafaira pasina simba

Sarudza mafaira ako

kana kudhonza uye kubvisa mafaera ako pano

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

Kuisa

Maitiro ekushandura MPG kuti PNG

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

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

Danho rechitatu: Dhawunirodha yako yakashandurwa PNG mafaira

MPG kuti PNG Mibvunzo Inowanzo bvunzwa Nezvekuchinja

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

Upload the MPG 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. MPG ndiyo imwe MPEG program stream se.mpeg — the three-letter extension is a DOS-era truncation, not a different format. PNG yakagadzirwa muna 1996 semugadziriso wakasununguka weGIF, uye yaive default lossless image format yewebhu.

Nei maframes angu akabuda achiwana mativi akavharwa ari pakati pezvimwe?

Nekuti chikonzero chinosvibiswa. MPG zvemukati kubva kubroadcast uye DVD era zvinochengeta maviri epakati-hurefu maindasitiri paframe, akatora makumi maviri nemana eseconds kubva kune imwe, uye achiri kutambanudzwa zvakananga zvinoratidza zvese zvakasvibiswa pamwe chete sekutambanudza pane chero chinhu chakafamba. Kubvumira deinterlacing pamberi pekubvisa uye chero achiri kuvakwa kubva kune imwe yakadzokororwa yakaenderera frame.

Ndinogona here kuwana PNG maframes pasina zvinyorwa?

Kana chete kana MPG yakanga yasingava nevanopisa, nekuti MPG haina kuchinja-chinja subtitle stream kuti iite. Chii zvachose a MPG chinoratidzwa pa skrini chiri mufananidzo wechiratidziro, saka icho chiri mu PNG zvose zvinogadzirwa nekuwedzera uye hapana kuiswa kunobvisa mushure meizvozvo. Kana imwe subtitle file iine video, bvisa kubva kune imwe nzvimbo iyo yakachengeta iyo mbiri zvakasiyana uye maframes anobuda akachena. MPG anotora pazuva MPEG-2 kurambidzwa — heavy bitrate, interlacing, hapana soft subtitles — pamwe nekushaikwa kwezviviri kusvikira imwe format.

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 seMPG video - 1080p MPG inogadzira 1920 × 1080 PNG maframes; 4K MPG 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 MPG se PNG?

Ndinoda, asi tarisa nehuwandu hwemafaira - 30fps 1-minute MPG 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 MPG kuumbwa kwevara?

Yeah - color inogadziriswa nematrix iyo iyo MPG 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 MPG inogadzira ~ 50 GB yese.

Chii chinokonzera kuti PNG ichengete EXIF kamera metadata?

Iyo MPG 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 MPG kusvika ku PNG?

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

Ndinogona here kubvisa maframes pazviratidzo zvenguva zvakasiyana mu MPG?

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.

MPG

MPG ndiro rimwe MPEG-1 kana MPEG-2 video se.mpeg, chete yakasviba kusvikira DOS-era software zvinodiwa.

PNG

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