{"id":121849,"date":"2025-02-11T20:22:05","date_gmt":"2025-02-11T18:22:05","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/opublikovan-svobodnyj-zvukovoj-kodek-flac-1-5"},"modified":"2025-02-11T20:22:05","modified_gmt":"2025-02-11T18:22:05","slug":"opublikovan-svobodnyj-zvukovoj-kodek-flac-1-5","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/opublikovan-svobodnyj-zvukovoj-kodek-flac-1-5","title":{"rendered":"Bol vydan\u00fd vo\u013ene dostupn\u00fd zvukov\u00fd kodek FLAC 1.5.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Spolo\u010denstvo Xiph.Org vydalo aktualiz\u00e1ciu slobodn\u00e9ho zvukov\u00e9ho kodeku FLAC 1.5.0, ktor\u00fd umo\u017e\u0148uje kompresiu zvuku bez straty kvality. FLAC pou\u017e\u00edva v\u00fdlu\u010dne met\u00f3dy k\u00f3dovania bez straty \u00fadajov (lossless), \u010do zaru\u010duje \u00fapln\u00fa zachovanie p\u00f4vodnej kvality zvukov\u00e9ho pr\u00fadu a jeho identitu s referen\u010dnou verziou podrobenou k\u00f3dovaniu. Pou\u017eit\u00e9 met\u00f3dy kompresie bez str\u00e1t umo\u017e\u0148uj\u00fa zn\u00ed\u017ei\u0165 ve\u013ekos\u0165 p\u00f4vodn\u00e9ho zvukov\u00e9ho pr\u00fadu o 50-60 %. FLAC je \u00faplne slobodn\u00fd streamovac\u00ed form\u00e1t, ktor\u00fd predpoklad\u00e1 nielen otvorenos\u0165 kni\u017en\u00edc s implement\u00e1ciou funkci\u00ed k\u00f3dovania a dek\u00f3dovania, ale aj absenciu obmedzen\u00ed pri pou\u017e\u00edvan\u00ed \u0161pecifik\u00e1ci\u00ed a vytv\u00e1ran\u00ed deriv\u00e1tov\u00fdch variantov. K\u00f3d kni\u017en\u00edc sa \u0161\u00edri pod licenciou BSD.  <\/p>\n<p>Medzi zmenami v novej verzii:  <\/p>\n<ul>\n<li class=\"l\"> Zabezpe\u010den\u00e1 pr\u00e1ca k\u00f3dova\u010da v viacvl\u00e1knovom re\u017eime. Viacvl\u00e1knov\u00fd k\u00f3dova\u010d je mo\u017en\u00e9 pou\u017ei\u0165 prostredn\u00edctvom libFLAC alebo cez pr\u00edkazov\u00fd n\u00e1stroj flac.\n<li class=\"l\"> Pridala sa mo\u017enos\u0165 dek\u00f3dovania spojen\u00fdch (chained) Ogg s\u00faborov, v ktor\u00fdch je zabalen\u00fdch nieko\u013eko nez\u00e1visl\u00fdch zvukov\u00fdch pr\u00fadov FLAC.\n<li class=\"l\"> V libFLAC, libFLAC++ a metaflac bola implementovan\u00e1 podpora z\u00e1pisu do nov\u00e9ho s\u00faboru pri zmene metad\u00e1t, namiesto prep\u00edsania existuj\u00faceho s\u00faboru. V libFLAC pri zmene metad\u00e1t bola pridan\u00e1 kontrola na \u0161pecifiku symbolick\u00e9ho odkazu ako vstupn\u00e9ho s\u00faboru a implementovala sa ochrana pred z\u00e1pisom do tak\u00fdchto s\u00faborov pri nahraden\u00ed s\u00faboru na mieste.\n<li class=\"l\"> API kni\u017en\u00edc libFLAC a libFLAC++ bolo roz\u0161\u00edren\u00e9.\n<li class=\"l\"> Prepracovan\u00e1 implement\u00e1cia re\u017eimu LMS (Loose Mid-Side) je prisp\u00f4soben\u00e1 pre viacvl\u00e1knov\u00fa pr\u00e1cu, pri\u010dom samostatne k\u00f3duje spolo\u010dn\u00e9 inform\u00e1cie pre stereo kan\u00e1ly a rozdiel medzi \u013eav\u00fdm a prav\u00fdm kan\u00e1lom.\n<li class=\"l\"> Implementovan\u00e1 podpora kompil\u00e1cie do form\u00e1tu WebAssembly kompil\u00e1torom Emscripten.\n<li class=\"l\"> \u0160pecifik\u00e1cia pre form\u00e1t FLAC bola zafixovan\u00e1 v RFC 9639.\n<li class=\"l\"> V utilite flac bola pri prekodovan\u00ed existuj\u00faceho s\u00faboru FLAC pridan\u00e1 kontrola zhody MD5 hashov. V testovacom re\u017eime \u201eflac -t\u201c sa teraz spracov\u00e1vaj\u00fa v\u0161etky bloky metad\u00e1t a zobrazuj\u00fa sa upozornenia pri zisten\u00ed metad\u00e1t ID3v1. Vylep\u0161en\u00e1 bola zabudovan\u00e1 n\u00e1poveda k dostupn\u00fdm mo\u017enostiam. Bol zdokumentovan\u00fd form\u00e1t pre uchov\u00e1vanie extern\u00fdch metad\u00e1t, ktor\u00e9 vyu\u017e\u00edva utilita flac.\n<li class=\"l\"> Licencia na dokument\u00e1ciu GFDL (GNU Free Documentation License) bola aktualizovan\u00e1 na verziu 1.3 (predt\u00fdm bola verzia 1.2).         <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=62708\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e Xiph.Org \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u0437\u0432\u0443\u043a\u043e\u0432\u043e\u0433\u043e \u043a\u043e\u0434\u0435\u043a\u0430 FLAC 1.5.0, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0441\u0436\u0438\u043c\u0430\u0442\u044c \u0437\u0432\u0443\u043a \u0431\u0435\u0437 \u043f\u043e\u0442\u0435\u0440\u0438 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0430. FLAC \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 \u0442\u043e\u043b\u044c\u043a\u043e \u043c\u0435\u0442\u043e\u0434\u044b \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0431\u0435\u0437 \u043e\u0442\u0431\u0440\u0430\u0441\u044b\u0432\u0430\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445 (lossless), \u0447\u0442\u043e \u0433\u0430\u0440\u0430\u043d\u0442\u0438\u0440\u0443\u0435\u0442 \u043f\u043e\u043b\u043d\u0443\u044e \u0441\u043e\u0445\u0440\u0430\u043d\u043d\u043e\u0441\u0442\u044c \u0438\u0437\u043d\u0430\u0447\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0430 \u0437\u0432\u0443\u043a\u043e\u0432\u043e\u0433\u043e \u043f\u043e\u0442\u043e\u043a\u0430 \u0438 \u0435\u0433\u043e \u0438\u0434\u0435\u043d\u0442\u0438\u0447\u043d\u043e\u0441\u0442\u044c \u0441 \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u044b\u043c \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u043e\u043c, \u043f\u043e\u0434\u0432\u0435\u0440\u0433\u043d\u0443\u0442\u044b\u043c \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044e. \u041f\u0440\u0438 \u044d\u0442\u043e\u043c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u0435 \u043c\u0435\u0442\u043e\u0434\u044b \u0441\u0436\u0430\u0442\u0438\u044f \u0431\u0435\u0437 \u043f\u043e\u0442\u0435\u0440\u044c \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u0443\u043c\u0435\u043d\u044c\u0448\u0438\u0442\u044c \u0440\u0430\u0437\u043c\u0435\u0440 \u0438\u0441\u0445\u043e\u0434\u043d\u043e\u0433\u043e \u0437\u0432\u0443\u043a\u043e\u0432\u043e\u0433\u043e \u043f\u043e\u0442\u043e\u043a\u0430 \u043d\u0430 50-60%. [&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-121849","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e Xiph.Org \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u0437\u0432\u0443\u043a\u043e\u0432\u043e\u0433\u043e \u043a\u043e\u0434\u0435\u043a\u0430 FLAC 1.5.0, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0441\u0436\u0438\u043c\u0430\u0442\u044c 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