DivX → JPEG

Sinthani Yanu DivX ku JPEG mafayilo mosavuta

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Kukweza

Momwe mungasinthire DivX ku JPEG

Gawo 1: Kwezani yanu DivX 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 JPEG mafayilo

DivX ku JPEG Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingagwiritse ntchito ma frame kuchokera ku DivX kanema ngati JPEG zithunzi?

Kutsitsa fayilo ya DivX ndipo wosintha amatulutsa chisankho cha frame-extraction: chilichonse cha Nth frame, ma frame panthawi yofunikira, kapena chiwonetsero chimodzi pasecond. Gawo lililonse losankhidwa limayikidwa ngati fayilo ya JPEG yosiyana ndipo limaphatikizidwa ngati archive ya ZIP yotsitsa.

Ndi khalidwe liti lomwe chithunzi cha JPEG chimatuluka?

Kusintha kwachidule ngati DivX kanema - 1080p chiyambi chimatulutsa 1920 × 1080 JPEG ma frame; 4K chiyambi chimatulutsa 3840 × 2160 JPEG ma frame.

Kodi ndingagwiritse ntchito ma frame onse kuchokera ku fayilo ya DivX ngati JPEG?

Ndikofunika, koma muyenera kukhala osamala ndi kuchuluka kwa mafayilo - kanema wa mphindi imodzi wa 30 fps umapanga ma frame 1,800, ndipo kanema wa mphindi 10 wa 60 fps umapanga ma frame 36,000. Timawasunga m'bokosi la ZIP mwamsanga.

Kodi JPEG zithunzi zidzasunga DivX kujambula kwa mtundu?

Ndiyo — mtundu umasinthidwa ndi machitidwe omwe amagwiritsa ntchito chiyambi (BT.709 kwa HD, BT.2020 kwa 4K HDR). Machitidwe a HDR amasinthidwa ndi maonekedwe a SDR pamene akugwiritsidwa ntchito ku JPEG (PNG / JPG sangathe kusungira ma pixel a HDR); kuwala kwa maonekedwe ndicho chomwe chimagwiritsa ntchito mpv / ffmpeg.

Kodi ndi kukula kwa fayilo ya JPEG ya frame?

Kutengera pa resolution ndi chida. 1080p PNG frame ndi 2-5 MB; 1080p JPG pa quality-85 ndi 200-500 KB; 1080p WebP pa quality-85 ndi 100-300 KB. Kuwonjezeka ndi mnda wa frame kuti muchepetse ZIP - kuchotsa kwa 10-mphindi 1080p video monga PNG ndi ~ 50 GB.

Kodi JPEG yosanduka imasunga metadata ya kamera?

Konteni ya DivX siyisunga EXIF ya frame-per-frame momwe kamera ikugwirira ntchito, choncho mafayilo a JPEG omwe amatulutsidwa amatuluka ndi EXIF yosagwira. Timayika `creation_time` yokhudzana ndi nthawi yoyambira ya frame kuti muthe kubwezeretsa bundle ndi chronology pambuyo potsitsa.

Kodi nthawi yayitali bwanji kuti mutenge ma frame kuchokera ku DivX kupita ku JPEG?

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

Kodi ndingagwiritse ntchito ma frame panthawi yofunikira pa DivX kanema?

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 JPEG pa timestamp. Ndikothandiza kwa mathumbnail a bokosi, zithunzi zokhudzana ndi bokosi, kapena kupanga ma frame a poster kwa kanema wa HTML5.

Kodi DivX kanema wanga ndi wapadera pamene ndimachotsa ma frame?

Yesani - mtundu wofanana wa privacy monga pazosintha zonse. Video yoyamba ndi bokosi la frame lopangidwa limathetsedwa m'maola ochepa chabe. Sichidzawonekanso kuti munthu awonetsetse kuti kanemayo ndi woyenera.

N'chifukwa chiyani ma frame anga a JPEG omwe adachotsedwa ndi opanda malire?

Zimachitika nthawi zonse kuwala kwa motion blur kuchokera ku bungwe (kamera ikugwira ntchito pamene frame idatha). Phunzirani kuchotsa timestamps kuchokera ku magulu okhazikika, kapena chotsani frame zambiri zozungulira ndikusankha zomwe zili zosaoneka bwino. Pipeline siyipanga kuoneka bwino — chifukwa chake, kugwiritsa ntchito /upscale/ pa JPEG yosaoneka bwino pambuyo pake.

Kodi ntchitoyi imathandiza kuchotsa chithunzi chimodzi pa kusintha kwa chithunzi?

Sichipezeka mu njira yoyamba —gwiritsani ntchito "1 pa mphindi" ngati njira yowerengera, kenako mudzaone zithunzi zosintha zenera. M'mabuku a maphunziro pali njira yopezera zenera (PySceneDetect-equivalent).

Kodi ndingagwiritse ntchito ma frame a JPEG ochokera ku malonda?

Ndikoyenera, malinga ndi lisensi yomwe imayendetsa masamba a DivX. Kusintha kwa mtundu sikungawonjezere chitsimikizo - sitiwonjezera madzi, sitiyika kutsatira, ndipo sitikananena chitsimikizo pa JPEG. Video ya Public-domain imapanga ma frame a Public-domain; kanema wanu amakhala wanu.

DivX

DivX ndi kanema psinjika luso kuti amalola apamwamba kanema psinjika ndi zazing'ono wapamwamba masaizi. Nthawi zambiri amagwiritsidwa ntchito pogawa mavidiyo pa intaneti.