{"id":99691,"date":"2021-04-09T10:22:48","date_gmt":"2021-04-09T08:22:48","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-multimedia-paketa-ffmpeg-4-4"},"modified":"2021-04-09T10:22:48","modified_gmt":"2021-04-09T08:22:48","slug":"vypusk-multimedia-paketa-ffmpeg-4-4","status":"publish","type":"post","link":"https:\/\/prohoster.info\/nl\/blog\/news\/vypusk-multimedia-paketa-ffmpeg-4-4","title":{"rendered":"Uitgave van het multimediapakket FFmpeg 4.4","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Na tien maanden ontwikkeling is het multimediapakket FFmpeg 4.4 beschikbaar, inclusief een set toepassingen en een verzameling bibliotheken voor operaties met verschillende multimediaformaten (opname, conversie en decodering van audio- en videoformaten). Het pakket wordt verspreid onder de LGPL- en GPL-licenties, waarbij de ontwikkeling van FFmpeg parallel aan het MPlayer-project plaatsvindt.     <\/p>\n<p>De wijzigingen die zijn toegevoegd in FFmpeg 4.4 omvatten:   <\/p>\n<ul>\n<li class=\"l\"> De mogelijkheid om de VDPAU (Video Decode and Presentation) API te gebruiken voor hardwarematige versnelling van video-decodering in de HEVC\/H.265 (10\/12bit) en VP9 (10\/12bit) formaten.\n<li class=\"l\"> Ondersteuning voor video-decodering in het AV1-formaat is voorzien, met gebruik van NVIDIA NVDEC- en Intel QSV (Quick Sync Video)-hardwareversnelling, evenals via de DXVA2\/D3D11VA API.\n<li class=\"l\">De mogelijkheid om AV1 te coderen in monochrome modus is toegevoegd, met gebruik van de libaom-bibliotheek (versie 2.0.1 of hoger vereist).\n<li class=\"l\"> De mogelijkheid om video in AV1-formaat te coderen met behulp van de SVT-AV1-encoder (Scalable Video Technology AV1), waarbij gebruik wordt gemaakt van de mogelijkheden voor hardwarematige parallelisatie in moderne Intel CPU's.\n<li class=\"l\"> Een apparaat voor uitvoer via het AudioToolbox-framework is toegevoegd.\n<li class=\"l\"> Ondersteuning voor het protocol \u00abgophers\u00bb (gopher over TLS) is toegevoegd.\n<li class=\"l\"> Ondersteuning voor het RIST (Reliable Internet Stream Transport) protocol is toegevoegd, met gebruik van librist.\n<li class=\"l\"> Ondersteuning voor de encoder op basis van libwavpack is verwijderd.\n<li class=\"l\"> Nieuwe decoders zijn toegevoegd: AV1 (met hardwarematige decodering), AV1 (via VAAPI), AVS3 (via libuavs3d), Cintel RAW, PhotoCD, PGX, IPU, MobiClip Video, MobiClip FastAudio, ADPCM IMA MOFLEX, Argonaut Games Video, MSP v2 (Microsoft Paint), Simbiosis IMX, Digital Pictures SGA.\n<li class=\"l\"> Nieuwe encoders zijn toegevoegd: RPZA, PFM, Cineform HD, OpenEXR, SpeedHQ, ADPCM IMA Ubisoft APM, ADPCM Argonaut Games, High Voltage Software ADPCM, ADPCM IMA AMV, TTML (ondertitels).\n<li class=\"l\"> Nieuwe media-container multiplexers (muxers) zijn toegevoegd: AMV, Rayman 2 APM, ASF (Argonaut Games), TTML (ondertitels), LEGO Racers ALP (.tun en .pcm).\n<li class=\"l\"> Nieuwe media-container demultiplexers (demuxers) zijn toegevoegd: AV1 (lage overhead bitstream), ACE, AVS3, MacCaption, MOFLEX, MODS, MCA, SVS, BRP (Argonaut Games), DAT, aax, IPU, xbm_pipe, binka, Simbiosis IMX, Digital Pictures SGA, MSP v2 (Microsoft Paint).\n<li class=\"l\"> Nieuwe parsers zijn toegevoegd: IPU, Dolby E, CRI, XBM.\n<li class=\"l\"> Nieuwe filters:\n<ul>\n<li class=\"l\"> chromanr \u2014 vermindert kleurruis in video.\n<li class=\"l\"> afreqshift en aphaseshift \u2014 verschuiven de frequentie en fase van geluid.\n<li class=\"l\"> adenorm \u2014 voegt ruis van een bepaald niveau toe.\n<li class=\"l\"> speechnorm \u2014 voert spraaknormalisatie uit.\n<li class=\"l\"> asupercut \u2014 snijdt frequenties boven 20 kHz uit de audio.\n<li class=\"l\"> asubcut \u2014 snijdt subwooferfrequenties uit.\n<li class=\"l\"> asuperpass en asuperstop \u2014 implementatie van Butterworth-frequentie-filters.\n<li class=\"l\">  shufflepixels \u2014 herschikking van pixels in videomomenten.\n<li class=\"l\"> tmidequalizer \u2014 toepassing van het effect van tijdelijke equalization in video (Temporal Midway Video Equalization).\n<li class=\"l\"> estdif \u2014 verwijdering van interlacing met behulp van het Edge Slope Tracing-algoritme.\n<li class=\"l\"> epx \u2014 vergrotingsfilter voor pixelart.\n<li class=\"l\"> shear \u2014 verschuivingstransformatie van video.\n<li class=\"l\"> kirsch \u2014 toepassing van de Kirsch-operator op video.\n<li class=\"l\"> colortemperature \u2014 aanpassing van de kleurtemperatuur van video.\n<li class=\"l\"> colorcontrast \u2014 aanpassing van het kleurcontrast tussen RGB-componenten voor video.\n<li class=\"l\"> colorcorrect \u2014 aanpassing van de witbalans voor video.\n<li class=\"l\"> colorize \u2014 overlay van kleur op video.\n<li class=\"l\"> exposure \u2014 aanpassing van het belichtingsniveau voor video.\n<li class=\"l\"> monochrome \u2014 omzetting van kleurvideo naar grijstinten.\n<li class=\"l\"> aexciter \u2014 generatie van hoge frequentiecomponenten in geluid die ontbreken in het oorspronkelijke signaal.\n<li class=\"l\"> vif en msad \u2014 bepaling van de VIF (Visual Information Fidelity) en MSAD (Mean Sum of Absolute Differences) co\u00ebffici\u00ebnten voor het evalueren van verschillen tussen twee video's.\n<li class=\"l\"> identity \u2014 bepaling van het niveau van verschillen tussen twee video's.\n<li class=\"l\"> setts \u2014 stelt PTS (presentation time stamp) en DTS (decoding time stamp) in bij pakketten (bitstream).          <\/ul>\n<\/ul>\n<\/ul>\n<p>Bron: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=54930\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u0434\u0435\u0441\u044f\u0442\u0438 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u043c\u0443\u043b\u044c\u0442\u0438\u043c\u0435\u0434\u0438\u0430-\u043f\u0430\u043a\u0435\u0442 FFmpeg 4.4, \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0449\u0438\u0439 \u043d\u0430\u0431\u043e\u0440 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u0438 \u043a\u043e\u043b\u043b\u0435\u043a\u0446\u0438\u044e \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a \u0434\u043b\u044f \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0439 \u043d\u0430\u0434 \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u043c\u0438 \u043c\u0443\u043b\u044c\u0442\u0438\u043c\u0435\u0434\u0438\u0430-\u0444\u043e\u0440\u043c\u0430\u0442\u0430\u043c\u0438 (\u0437\u0430\u043f\u0438\u0441\u044c, \u043f\u0440\u0435\u043e\u0431\u0440\u0430\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0438 \u0434\u0435\u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0437\u0432\u0443\u043a\u043e\u0432\u044b\u0445 \u0438 \u0432\u0438\u0434\u0435\u043e\u0444\u043e\u0440\u043c\u0430\u0442\u043e\u0432). \u041f\u0430\u043a\u0435\u0442 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u044f\u043c\u0438 LGPL \u0438 GPL, \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0430 FFmpeg \u0432\u0435\u0434\u0451\u0442\u0441\u044f \u0441\u043c\u0435\u0436\u043d\u043e \u0441 \u043f\u0440\u043e\u0435\u043a\u0442\u043e\u043c MPlayer. \u0418\u0437 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439, \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u043d\u044b\u0445 \u0432 FFmpeg 4.4, \u043c\u043e\u0436\u043d\u043e \u0432\u044b\u0434\u0435\u043b\u0438\u0442\u044c: \u0420\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u0430 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