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  1. #1
    Unknown User Milen_Haskovo's Avatar
    Join Date: May:2005
    Location: Ñîôèÿ / Õàñêîâî
    Posts: 1,756

    Encoding íà âèäåî ôàéëîâå, êàê çà îïòèìàëåí ðàçìåð/êà÷åñòâî ?

    Ñâàëÿì êëèïîâåòå îò àíàëîãîâà âèäåîêàìåðà íà õàðääèñêà ïðåç TV Tuner-a, ïîëó÷àâàì RAW RGB ôàéëîâå ñ ðàçìåð îêîëî 60ÃÁ çà 45 ìèíóòè 640x480@25fps... Ñ VirtualDUB ïðàâÿ îáðàáîòêà, ñëàãàì "deinterleace" ôèëòúð, ïîñëå ïðåç DivX èëè XviD ãè êîäèðàì, íî ïàê å íåçàäîâîëèòåëíî - 600ÌÁ 45 ìèíóòåí ôàéë. Êàê ìîãà äà ãè îáðàáîòâàì åôåêòèâíî, çà äà ñå ïîëó÷àò ïî-ìàëêè ôàéëîâå ñ äîáðî êà÷åñòâî, òîâà êîëêî âðåìå ùå ÷àêàì íå ìå êàñàå. Êàêâè êîäåöè ìè òðÿáâàò? Ñ êîé ñîôòóåð ùå ñòàíå íàé-äîáðå?
    Asus P8Z77-V LX/i7-3770K @ 4,3GHz/be! quiet Dark Rock Pro/MSI GTX680 TwinFrozr OC 2GB/4x8GB Kingston @ 2133MHz - 10-11-13-30/HP P400 + 5x SAS 450GB@RAID5/Corsair TX750M/Fractal Design Define R5/XMOS DAC PCM56->12SN7/807 tube amp->Infinity Renaissance 80

  2. #2
    Íàñòîÿù øåô íà Èíòåë Joredos's Avatar
    Join Date: May:2003
    Location: Ñîôèÿ
    Posts: 5,202
    Èçïîëçâàé êàëêóëàòîðúò íà ñúîòâåòíèÿ êîäåê.13ìá â ñåê å åäíà äîáðà êîìïðåñèÿ çà òàçè ðåçîëþöèÿ,êîå íå òè õàðåñâà?
    Íå îòãîâàðÿì íà íåãðàìîòíè ïîñòîâå. Äà èçòèêàìå HWBG ïàïëà÷òà! Êîïèðàéòå ãî â ïîäïèñà ñè, çà äà ñè âúðíåì ôîðóìà.
    Èìàì ñè áëîã è ñè ëàÿ â íåãî

  3. #3
    philosophus duratea icaci's Avatar
    Join Date: Oct:2006
    Location: Aachen
    Posts: 2,698
    15 ìèí âèäåî îò îõðàíèòåëíà êàìåðà ïðè 640x480 @ 30 fps, öâåòíî, MS MPEG4v2 êîäåê ïðè 512 kbps - 60 MB. Ïðè òîâà êà÷åñòâîòî å íàïúëíî çàâîäîëèòåëíî.
    Internet - it doesn't make you stupid, it just makes your stupidity more accessible to others

  4. #4
    Unprofessional Amateur spirtbrat's Avatar
    Join Date: Oct:2005
    Location: Ñîôèÿ
    Posts: 52
    Âèñîêî êà÷åñòâî è íåãîëÿì ðàçìåð íà ôàéëîâåòå ñ XviD, DivX è H.264 ñå ïîñòèãà ïðè 0.256 áèòà/ïèêñåë. Çà äà ñè ñìåòíåø áèòðåéòà: x*y*fps*(bits/pixel) ðàçäåëåíî íà 1024 è ñå ïîëó÷àâà â êèëîáèòè çà ñåêóíäà (òî÷íî êîåòî òè òðÿáâà). Íàïðèìåð (640*480*29.97*0.256) / 1024 = 2301.696 kbit/sec. Äåìåê, ïèøåø 2302, òàì êúäåòî ñå ïîñî÷âà áèòðåéòà.
    Àêî ðàçìåðà òè ñå ñòðóâà ãîëÿì, èçïîëçâàé ïî-íèñêà ñòîéíîñò çà bits/pixel, íî íå ïàäàé ïîä 0.128.
    The harder I work, the luckier I goddamned get.

  5. #5
    Registered User
    Join Date: Aug:2006
    Location: Ïëîâäèâ
    Posts: 4,052
    http://www.videolan.org/developers/x264.html
    Ïðåäïîëàãàì, ÷å äîðè è ïîñëåäíàòà âåðñèÿ íà VLC ùå ìîæå äà ïðåêîäèðà â òîçè ôîðìàò.

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