{"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\/it\/blog\/news\/vypusk-multimedia-paketa-ffmpeg-4-4","title":{"rendered":"Versione del pacchetto multimediale FFmpeg 4.4","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Dopo dieci mesi di sviluppo, \u00e8 disponibile il pacchetto multimediale FFmpeg 4.4, che include un insieme di applicazioni e una raccolta di librerie per operazioni su vari formati multimediali (registrazione, conversione e decodifica di formati audio e video). Il pacchetto \u00e8 distribuito sotto le licenze LGPL e GPL, e lo sviluppo di FFmpeg procede insieme al progetto MPlayer.     <\/p>\n<p>Le modifiche aggiunte a FFmpeg 4.4 includono:   <\/p>\n<ul>\n<li class=\"l\"> \u00c8 stata implementata la possibilit\u00e0 di utilizzare l'API VDPAU (Video Decode and Presentation) per l'accelerazione hardware della decodifica video nei formati HEVC\/H.265 (10\/12bit) e VP9 (10\/12bit).\n<li class=\"l\"> \u00c8 stata garantita la decodifica video nel formato AV1 utilizzando i motori di accelerazione hardware NVIDIA NVDEC e Intel QSV (Quick Sync Video), cos\u00ec come tramite le API DXVA2\/D3D11VA.\n<li class=\"l\">\u00c8 stata aggiunta la possibilit\u00e0 di codificare AV1 in modalit\u00e0 monocromatica, utilizzando la libreria libaom (\u00e8 richiesta almeno la versione 2.0.1).\n<li class=\"l\"> \u00c8 stata implementata la codifica video nel formato AV1 utilizzando il codificatore SVT-AV1 (Scalable Video Technology AV1), che sfrutta i meccanismi di parallelizzazione hardware presenti nelle moderne CPU Intel.\n<li class=\"l\"> \u00c8 stato aggiunto un dispositivo per l'uscita tramite il framework AudioToolbox.\n<li class=\"l\"> Aggiunta del supporto per il protocollo \u00abgophers\u00bb (gopher sopra TLS).\n<li class=\"l\"> \u00c8 stata aggiunta la supporto per il protocollo RIST (Reliable Internet Stream Transport), utilizzando librist.\n<li class=\"l\"> \u00c8 stata rimossa la supporto al codificatore basato su libwavpack.\n<li class=\"l\"> Sono stati aggiunti nuovi decodificatori: AV1 (con accelerazione hardware per la decodifica), AV1 (tramite VAAPI), AVS3 (tramite 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\"> Sono stati aggiunti nuovi codificatori: RPZA, PFM, Cineform HD, OpenEXR, SpeedHQ, ADPCM IMA Ubisoft APM, ADPCM Argonaut Games, High Voltage Software ADPCM, ADPCM IMA AMV, TTML (sottotitoli).\n<li class=\"l\"> Sono stati aggiunti i multiplexer di contenitore multimediale: AMV, Rayman 2 APM, ASF (Argonaut Games), TTML (sottotitoli), LEGO Racers ALP (.tun e .pcm).\n<li class=\"l\"> Sono stati aggiunti i demultiplexer di contenitore multimediale: AV1 (streams a bassa latenza), 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\"> Sono stati aggiunti nuovi parsers: IPU, Dolby E, CRI, XBM.\n<li class=\"l\"> Nuovi filtri:\n<ul>\n<li class=\"l\"> chromanr \u2014 riduce il rumore di colore nei video.\n<li class=\"l\"> afreqshift e aphaseshift \u2014 effettuano uno spostamento di frequenza e fase del suono.\n<li class=\"l\"> adenorm \u2014 aggiunge rumore a un livello specifico.\n<li class=\"l\"> speechnorm \u2014 esegue la normalizzazione del parlato.\n<li class=\"l\"> asupercut \u2014 taglia nel suono le frequenze sopra i 20 kHz.\n<li class=\"l\"> asubcut \u2014 taglia le frequenze del subwoofer.\n<li class=\"l\"> asuperpass e asuperstop \u2014 implementazione dei filtri passa-alto e passa-basso di Butterworth.\n<li class=\"l\">  shufflepixels \u2014 raggruppamento dei pixel nei fotogrammi video.\n<li class=\"l\"> tmidequalizer \u2014 applicazione dell'effetto di equalizzazione temporale video (Temporal Midway Video Equalization).\n<li class=\"l\"> estdif \u2014 eliminazione dell'interlacciamento utilizzando l'algoritmo Edge Slope Tracing.\n<li class=\"l\"> epx \u2014 filtro di ingrandimento per la creazione di grafica pixelata.\n<li class=\"l\"> shear \u2014 trasformazione di taglio del video.\n<li class=\"l\"> kirsch \u2014 applicazione dell'operatore Kirsch al video.\n<li class=\"l\"> colortemperature \u2014 regolazione della temperatura del colore del video.\n<li class=\"l\"> colorcontrast \u2014 regolazione del contrasto di colore tra i componenti RGB per il video.\n<li class=\"l\"> colorcorrect \u2014 regolazione del bilanciamento del bianco per il video.\n<li class=\"l\"> colorize \u2014 sovrapposizione di colore sul video.\n<li class=\"l\"> exposure \u2014 regolazione del livello di esposizione per il video.\n<li class=\"l\"> monochrome \u2014 conversione di video a colori in scala di grigi.\n<li class=\"l\"> aexciter \u2014 generazione di componenti ad alta frequenza nel suono, assenti nel segnale originale.\n<li class=\"l\"> vif e msad \u2014 determinazione dei coefficienti VIF (Visual Information Fidelity) e MSAD (Mean Sum of Absolute Differences) per valutare le differenze tra due video.\n<li class=\"l\"> identity \u2014 determinazione del livello di differenze tra due video.\n<li class=\"l\"> setts \u2014 imposta PTS (presentation time stamp) e DTS (decoding time stamp) nei pacchetti (bitstream).          <\/ul>\n<\/ul>\n<\/ul>\n<p>Fonte: <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 5.0.2 - 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 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