MPG → BMP

Sinthani Yanu MPG ku BMP mafayilo mosavuta

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Kukweza

Momwe mungasinthire MPG ku BMP

Gawo 1: Kwezani yanu MPG 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

MPG ku BMP Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingagwiritse ntchito ma frame amodzi kuchokera ku MPG ngati BMP zithunzi?

Kutsitsa fayilo ya MPG ndi wosinthira amatulutsa chisankho cha frame-extraction: chilichonse cha Nth frame, ma frame panthawi yofunikira, kapena chiwonetsero chimodzi pasecond.Katundu uliwonse wosankhidwa umasunthidwa kuchokera ku MPG video stream, amasinthidwa kukhala fayilo ya BMP yosiyana, ndipo imaphatikizidwa ngati ZIP yotsitsa.

Kodi ndi yankho liti lomwe limatuluka BMP zithunzi zosadziwika?

Kuwala kofanana ndi choyamba MPG: 1080p MPG kumabweretsa 1920x1080 BMP ma frame, 4K MPG kumabweretsa 3840x2160 BMP ma frame. Wosinthayo sasintha kapena kuchepetsa - ma pixels amachokera pa frame yosinthidwa. Musanagwiritse ntchito /resize-image/ ngati mukufuna zithunzi zochepa.

Kodi ndingagwiritse ntchito chilichonse cha MPG ngati BMP?

Ndino, koma ganizirani kuchuluka kwa fayilo - 30 fps 1-mphindi MPG imapanga 1,800 BMP mafremu. Timawapaka m'chigawo chimodzi cha ZIP mwamsanga. Kwa mavidiyo ochepa, yesani "1 pa mphindi" (60 mafremu pa mphindi) kapena kusankha nthawi yoyenera. Ora la MPG pa mafremu onse lidzapanga ~100,000 BMP zithunzi.

Kodi BMP ma frame adzasunga MPG kujambula kwa mtundu?

Ndikoyenera - mtundu umasinthidwa ndi mapangidwe omwewo omwe amapezeka patsamba la MPG (BT.709 kwa HD, BT.2020 kwa 4K HDR). Mafuta a HDR amasinthidwa ku SDR pamene akugwiritsidwa ntchito ku BMP omwe sangathe kusungira ma pixel a HDR mwanjira yachibadwa (JPG, PNG-8).

Kodi ndi chiyani chosapanga dzimbiri chosapanga dzimbiri BMP pa diski?

Kutengera pa resolution ndi BMP codec kusankhidwa: 1080p PNG frame ndi 2-5 MB yopanda kusowa, 1080p JPG pa 85 quality ndi 200-500 KB. Kuwonjezeka kwa mitengo ya frame kuti muchepetse ZIP - pamapeto pake, kutulutsa kwa PNG kwa 10-1080p MPG kwa 10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-10-1

Kodi BMP yosakira imasunga metadata ya EXIF ya kamera?

MPG chonyamula sichimangokhala ndi EXIF pa frame momwe kamera ikugwirira ntchito, kotero mafayilo a BMP amatuluka ndi ma blocks EXIF opanda pake. Wosintha amagwiritsa ntchito `creation_time` field yomwe imasonyeza nthawi yoyambira ya frame, kuti muthe kubwezeretsa bundle m'njira yoyenera kapena kugwirizana ndi masamba a subtitle / chapter.

Kodi nthawi yayitali bwanji kuti mutenge chiwonetsero cha MPG mpaka BMP?

Kusintha kwa frame ndi kosavuta - nthawi zambiri 20-30% ya nthawi yochokera. 5-mphindi MPG -> BMP bundle imatha m'miphindi 1 popanda kutengera kuti ndi mapazi angati omwe mumasankha, chifukwa chingwe ndi BMP encoder kulemba mafayilo ambiri ochepa mofanana, osati MPG demuxer.

Kodi ndingagwiritse ntchito ma frame panthawi yoyenera m'mavidiyo a MPG?

Ndiyo — njira yowonjezera ya timestamp imavomereza mndandanda wogawidwa ndi koma (mwachitsanzo `00:01:23, 00:05:00, 00:10:42.5`) ndipo imapanga fayilo imodzi BMP pa timestamp. Ndikothandiza kwa thumbnails ya chapter, zithunzi zokhudzana ndi scene, kapena kulenga bokosi la mauthenga kuti lifufutidwe.

Kodi MPG yanga ndi yapadera panthawi yochotsa bokosi?

Yesani - mtundu wofanana wa privacy monga pazosintha zonse. Choyamba MPG ndi BMP chosakira chimachitidwa m'mabungwe osiyana ndi omwe amachotsa m'maola angapo a kumaliza.

Nchifukwa chiyani ma frame a BMP omwe adachotsedwa ndi opanda pake?

Kutalika kwa nthawi yosaoneka bwino kwa motion blur kumayikidwa m'mawu ochokera ku MPG (kamera kapena chinthu chinayenda pamene chithunzicho chidapangidwa). Yesetsani kuchotsa nthawi ya nthawi kuchokera pazithunzi zosasinthasintha, kapena kuchotsa ma frame angapo ozungulira ndikusankha omwe ndi owala kwambiri. Pipeline siyipanga mfundo zomwe sizikupezeka m'mawu ochokera ku MPG.

Kodi wosintha angasankhe chiwonetsero chimodzi pa kusintha kwa zenera mu MPG?

Sichipezeka mu mzere waukulu - kugwiritsa ntchito "1 pasecond" monga kuyerekezera koyamba ndi kujambula kwa maonekedwe a maonekedwe a maonekedwe. Mtundu wosankhidwa wa kuzindikira kwa maonekedwe (wopangidwa ndi ffmpeg select=gt(scene)) uli pa roadmap ndipo udzakhala ndi BMP kutumiza kunja kumapeto kwa chaka chino.

Kodi ndingagwiritse ntchito mafayilo a BMP opangidwa mwamalonda?

Ndikoyenera, malinga ndi lisensi yomwe imayendetsa masamba a MPG. Kusintha kwa mtundu ndi kusintha kwa mtundu - ufulu wa ma copyright pazomwe zili ndi amene ali ndi MPG. Timawonjezera palibe watermark, palibe stamping yophatikizidwa, ndipo sitikufuna chilolezo pa BMP bundle.