{"id":36862,"date":"2019-10-31T22:14:21","date_gmt":"2019-10-31T19:14:21","guid":{"rendered":"https:\/\/prohoster.info\/blog\/vypusk-multimedia-paketa-ffmpeg-4-2\/"},"modified":"2019-10-31T22:14:21","modified_gmt":"2019-10-31T19:14:21","slug":"vypusk-multimedia-paketa-ffmpeg-4-2","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/vypusk-multimedia-paketa-ffmpeg-4-2","title":{"rendered":"Publication du paquet multim\u00e9dia FFmpeg 4.2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Apr\u00e8s neuf mois de d\u00e9veloppement <noindex><a rel=\"nofollow\" href=\"http:\/\/ffmpeg.org\/download.html#release_4.2\">disponible<\/a><\/noindex> pack multim\u00e9dia <noindex><a rel=\"nofollow\" href=\"http:\/\/ffmpeg.org\/\">FFmpeg 4.2<\/a><\/noindex>, incluant un ensemble d'applications et une collection de biblioth\u00e8ques pour le traitement de divers formats multim\u00e9dia (enregistrement, conversion et d\u00e9codage de formats audio et vid\u00e9o). Le package est distribu\u00e9 sous les licences LGPL et GPL, le d\u00e9veloppement de FFmpeg se fait en parall\u00e8le avec le projet <noindex><a rel=\"nofollow\" href=\"http:\/\/www.mplayerhq.hu\/\">MPlayer<\/a><\/noindex>. <\/p>\n<p>De <noindex><a rel=\"nofollow\" href=\"http:\/\/git.videolan.org\/?p=ffmpeg.git;a=blob;f=RELEASE_NOTES;hb=release\/4.2\">modifications<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"http:\/\/git.videolan.org\/?p=ffmpeg.git;a=blob;f=Changelog;hb=release\/4.2\">ajout\u00e9es<\/a><\/noindex> Dans FFmpeg 4.2, on peut noter : <\/p>\n<ul>\n<li class=\"l\"> Ajout de la possibilit\u00e9 d'utiliser Clang pour compiler des fichiers CUDA ;\n<li class=\"l\"> Impl\u00e9mentation de la prise en charge du d\u00e9codage du format AV1 \u00e0 l'aide d'un d\u00e9codeur alternatif <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=50605\">dav1d<\/a><\/noindex>, d\u00e9velopp\u00e9 par les projets VideoLAN et FFmpeg. Dav1d vise \u00e0 atteindre la meilleure performance de d\u00e9codage possible et \u00e0 garantir un bon fonctionnement en mode multithread ;\n<li class=\"l\"> Ajout des d\u00e9multiplexeurs (demuxer) dhav, hcom et vividas, KUX et IFV ;\n<li class=\"l\"> Ajout d'un encodeur PCM-DVD ;\n<li class=\"l\"> Ajout des d\u00e9codeurs VP4, hymt, hcom, ARBC, agm et lscr ;\n<li class=\"l\"> Prise en charge du d\u00e9codage du contenu HEVC 4:4:4 utilisant les moteurs d'acc\u00e9l\u00e9ration mat\u00e9rielle NVIDIA nvdec et cuviddec, ainsi que l'API VDPAU (Video Decode and Presentation) ;\n<li class=\"l\"> Dans le multiplexeur de conteneurs multim\u00e9dias mov, prise en charge de l'enregistrement de pistes sans d\u00e9finition explicite de la langue (pr\u00e9c\u00e9demment, la langue par d\u00e9faut \u00e9tait l'anglais) ;\n<li class=\"l\"> Nouvelles <noindex><a rel=\"nofollow\" href=\"https:\/\/ffmpeg.org\/ffmpeg-filters.html\">filtres<\/a><\/noindex>:\n<ul>\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/ffmpeg.org\/ffmpeg-filters.html#asr\">asr<\/a><\/noindex> &#8212; reconnaissance automatique de la parole utilisant le moteur PocketSphinx;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/ffmpeg.org\/ffmpeg-filters.html#derain\">derain<\/a><\/noindex> &#8212; supprime la pluie des vid\u00e9os en utilisant un syst\u00e8me d'apprentissage automatique bas\u00e9 sur des r\u00e9seaux neuronaux  <noindex><a rel=\"nofollow\" href=\"http:\/\/openaccess.thecvf.com\/content_ECCV_2018\/papers\/Xia_Li_Recurrent_Squeeze-and-Excitation_Context_ECCV_2018_paper.pdf\">RESCAN<\/a><\/noindex> et pr\u00eats <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/XueweiMeng\/derain_filter.git\">mod\u00e8le<\/a><\/noindex>;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/ffmpeg.org\/ffmpeg-filters.html#freezedetect\">freezedetect<\/a><\/noindex> &#8212; d\u00e9tection de l'absence de changements dans la vid\u00e9o (image inchang\u00e9e pendant un certain temps);\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/ffmpeg.org\/ffmpeg-filters.html#tpad\">tpad<\/a><\/noindex> &#8212; ajout de jeux d'images suppl\u00e9mentaires au d\u00e9but ou \u00e0 la fin du flux vid\u00e9o;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/ffmpeg.org\/ffmpeg-filters.html#dedot\">dedot<\/a><\/noindex> &#8212; lissage des artefacts de luminosit\u00e9 et de couleur (reflets ponctuels et arc-en-ciel) sur la vid\u00e9o;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/ffmpeg.org\/ffmpeg-filters.html#chromashift\">chromashift\/rgbashift<\/a><\/noindex> &#8212; d\u00e9calage des composantes color\u00e9es des pixels horizontalement et verticalement;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.ffmpeg.org\/ffmpeg-bitstream-filters.html#truehd_005fcore\">truehd_core<\/a><\/noindex> &#8212; extraction du flux principal de TrueHD, en rejetant les m\u00e9tadonn\u00e9es ATMOS;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/ffmpeg.org\/ffmpeg-filters.html#anlmdn\">anlmdn<\/a><\/noindex> &#8212; suppression du bruit large bande dans le flux audio \u00e0 l'aide d'un algorithme <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Non-local_means\">de moyennage non local<\/a><\/noindex>;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/ffmpeg.org\/ffmpeg-filters.html#maskfun\">maskfun<\/a><\/noindex> &#8212; cr\u00e9ation d'un masque bas\u00e9 sur la vid\u00e9o fournie en entr\u00e9e;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.ffmpeg.org\/ffmpeg-bitstream-filters.html\">AV1 frame split<\/a><\/noindex> &#8212; s\u00e9paration des images dans le flux AV1;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/ffmpeg.org\/ffmpeg-filters.html#lagfun\">lagfun<\/a><\/noindex> &#8212; ralentissement du changement de couleur des pixels sombres (augmentation du temps d'affichage des \u00e9clairs lumineux);\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/ffmpeg.org\/ffmpeg-filters.html#asoftclip\">asoftclip<\/a><\/noindex> &#8212; d\u00e9coupe douce du son (att\u00e9nuation progressive de l'amplitude au lieu d'une coupure brusque du signal);\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/ffmpeg.org\/ffmpeg-filters.html#colorhold\">colorhold<\/a><\/noindex> &#8212; suppression des informations sur toutes les couleurs RGB sauf celle sp\u00e9cifi\u00e9e;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/ffmpeg.org\/ffmpeg-filters.html#xmedian\">xmedian<\/a><\/noindex> &#8212; extraction de l'intersection moyenne des pixels pour plusieurs vid\u00e9os d'entr\u00e9e;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/ffmpeg.org\/ffmpeg-filters.html#showspatial\">showspatial<\/a><\/noindex> &#8212; conversion du son st\u00e9r\u00e9o dans la vid\u00e9o montrant l'interaction spatiale entre deux canaux audio;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/ffmpeg.org\/ffmpeg-filters.html#deesser\">deesser<\/a><\/noindex> &#8212; suppression des distorsions dues \u00e0 un mauvais microphone ou \u00e0 une compression excessive du son lors de l'enregistrement de la voix (\u00e9limine l'effet sonore comme dans une bo\u00eete).\n<\/ul>\n<li class=\"l\"> Le paquet comprend un parseur pour les images au format GIF;\n<li class=\"l\"> Ajout de la prise en charge des sous-titres en codage ARIB STD-B24 (profils A et C), utilis\u00e9s lors de la diffusion MPEG-2 TS. La prise en charge est mise en \u0153uvre via l'utilisation de la biblioth\u00e8que libaribb24;\n<li class=\"l\"> Suppression de la biblioth\u00e8que libndi-newtek.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Source : <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51227\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u0434\u0435\u0432\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 4.2, \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 4.2, \u043c\u043e\u0436\u043d\u043e \u0432\u044b\u0434\u0435\u043b\u0438\u0442\u044c: \u0414\u043e\u0431\u0430\u0432\u043b\u0435\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 Clang \u0434\u043b\u044f \u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0446\u0438\u0438 \u0444\u0430\u0439\u043b\u043e\u0432 [&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-36862","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0441\u043b\u0435 \u0434\u0435\u0432\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.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" 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