{"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\/no\/blog\/news\/vypusk-multimedia-paketa-ffmpeg-4-4","title":{"rendered":"Utgivelsen av multimedia-pakken FFmpeg 4.4","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Etter ti m\u00e5neders utvikling er multimediapakken FFmpeg 4.4 tilgjengelig, som inkluderer et sett med applikasjoner og et bibliotek for arbeid med forskjellige multimediaformater (opptak, konvertering og dekoding av lyd- og videoformater). Pakken distribueres under LGPL- og GPL-lisenser, og utviklingen av FFmpeg p\u00e5g\u00e5r parallelt med prosjektet MPlayer.     <\/p>\n<p>Noen av endringene som er lagt til FFmpeg 4.4 inkluderer:   <\/p>\n<ul>\n<li class=\"l\"> Muligheten til \u00e5 bruke VDPAU (Video Decode and Presentation) API for maskinvareakselerasjon av videodekoding i HEVC\/H.265 (10\/12bit) og VP9 (10\/12bit) formater.\n<li class=\"l\"> St\u00f8tte for dekoding av video i AV1-formatet ved hjelp av NVIDIA NVDEC og Intel QSV (Quick Sync Video) maskinvareakselerasjonsmotorer, samt via DXVA2\/D3D11VA API.\n<li class=\"l\">Muligheten for monokrom AV1-koding er lagt til, ved bruk av libaom-biblioteket (krever minst versjon 2.0.1).\n<li class=\"l\"> Muligheten for AV1-video-koding ved hjelp av SVT-AV1 (Scalable Video Technology AV1) kodek, som utnytter maskinvareparallellisering i moderne Intel CPU-er.\n<li class=\"l\"> En utgangsenhet er lagt til via AudioToolbox-rammeverket.\n<li class=\"l\"> St\u00f8tte for protokollen \u00abgophers\u00bb (gopher over TLS) er lagt til.\n<li class=\"l\"> St\u00f8tte for RIST (Reliable Internet Stream Transport) protokollen er lagt til, ved bruk av librist.\n<li class=\"l\"> St\u00f8tten for libwavpack-baserte kodekere er fjernet.\n<li class=\"l\"> Nye dekodere lagt til: AV1 (med maskinvareakselerasjon), 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\"> Nye kodere lagt til: RPZA, PFM, Cineform HD, OpenEXR, SpeedHQ, ADPCM IMA Ubisoft APM, ADPCM Argonaut Games, High Voltage Software ADPCM, ADPCM IMA AMV, TTML (undertekster).\n<li class=\"l\"> Nye mediakontainer-muxere lagt til: AMV, Rayman 2 APM, ASF (Argonaut Games), TTML (undertekster), LEGO Racers ALP (.tun og .pcm).\n<li class=\"l\"> Nye mediakontainer-demuxere lagt til: AV1 (lav 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\"> Nye parserere lagt til: IPU, Dolby E, CRI, XBM.\n<li class=\"l\"> Nye filtre:\n<ul>\n<li class=\"l\"> chromanr \u2014 reduserer farge st\u00f8y i video.\n<li class=\"l\"> afreqshift og aphaseshift \u2014 utf\u00f8rer frekvens- og faseforskyvninger av lyd.\n<li class=\"l\"> adenorm \u2014 legger til st\u00f8y av et bestemt niv\u00e5.\n<li class=\"l\"> speechnorm \u2014 utf\u00f8rer normalisering av tale.\n<li class=\"l\"> asupercut \u2014 fjerner lydfrekvenser over 20 kHz.\n<li class=\"l\"> asubcut \u2014 fjerner subwooferfrekvenser.\n<li class=\"l\"> asuperpass og asuperstop \u2014 implementering av Butterworth-filter.\n<li class=\"l\">  shufflepixels \u2014 omorganisering av piksler i videobilder.\n<li class=\"l\"> tmidequalizer \u2014 anvendelse av temporal midway video equalization-effekt.\n<li class=\"l\"> estdif \u2014 fjerner skjermlinjer ved hjelp av Edge Slope Tracing-algoritmen.\n<li class=\"l\"> epx \u2014 oppskalering av filter for \u00e5 lage pikselgrafikk.\n<li class=\"l\"> shear \u2014 skjev transformasjon av video.\n<li class=\"l\"> kirsch \u2014 anvendelse av Kirsch-operatoren p\u00e5 video.\n<li class=\"l\"> colortemperature \u2014 justering av fargetemperaturen i video.\n<li class=\"l\"> colorcontrast \u2014 justering av fargekontrasten mellom RGB-komponenter for video.\n<li class=\"l\"> colorcorrect \u2014 justering av hvitbalansen i video.\n<li class=\"l\"> colorize \u2014 p\u00e5f\u00f8ring av farge p\u00e5 video.\n<li class=\"l\"> exposure \u2014 justering av eksponeringsniv\u00e5et for video.\n<li class=\"l\"> monochrome \u2014 konvertering av fargevideo til gr\u00e5skala.\n<li class=\"l\"> aexciter \u2014 generering av h\u00f8yfrekvente komponenter av lyd som mangler i det originale signalet.\n<li class=\"l\"> vif og msad \u2014 bestemmer VIF (Visual Information Fidelity) og MSAD (Mean Sum of Absolute Differences) koeffisienter for \u00e5 vurdere forskjeller mellom to videoer.\n<li class=\"l\"> identity \u2014 bestemmer niv\u00e5et av forskjeller mellom to videoer.\n<li class=\"l\"> setts \u2014 setter PTS (presentation time stamp) og DTS (decoding time stamp) i pakker (bitstream).          <\/ul>\n<\/ul>\n<\/ul>\n<p>Kilde: <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 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f API VDPAU (Video Decode [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-99691","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - aioseo.com -->\n\t<meta name=\"description\" content=\"\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 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