{"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\/it\/blog\/news\/opublikovan-svobodnyj-zvukovoj-kodek-flac-1-5","title":{"rendered":"Pubblicato il codec audio libero FLAC 1.5","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>La comunit\u00e0 Xiph.Org ha rilasciato un aggiornamento del codec audio libero FLAC 1.5.0, che consente di comprimere il suono senza perdita di qualit\u00e0. FLAC utilizza solo metodi di codifica lossless, garantendo la completa conservazione della qualit\u00e0 originale del flusso audio e la sua identit\u00e0 rispetto alla versione di riferimento sottoposta a codifica. I metodi di compressione lossless utilizzati consentono di ridurre la dimensione del flusso audio originale del 50-60%. FLAC \u00e8 un formato di flusso completamente libero, che implica non solo l'apertura delle librerie con implementazioni di funzioni di codifica e decodifica, ma anche l'assenza di restrizioni sull'uso delle specifiche e sulla creazione di varianti derivate. Il codice delle librerie \u00e8 distribuito con licenza BSD.  <\/p>\n<p>Tra le novit\u00e0 nella nuova versione:  <\/p>\n<ul>\n<li class=\"l\"> \u00c8 stato garantito il funzionamento del codec in modalit\u00e0 multithreading. Il codec multithread pu\u00f2 essere utilizzato tramite libFLAC o tramite l'utilit\u00e0 da riga di comando flac.\n<li class=\"l\"> \u00c8 stata aggiunta la possibilit\u00e0 di decodificare file Ogg collegati (chained), in cui pi\u00f9 flussi audio FLAC indipendenti sono confezionati in un unico file.\n<li class=\"l\"> In libFLAC, libFLAC++ e metaflac \u00e8 stata implementata la possibilit\u00e0 di scrivere in un nuovo file quando vengono modificati i metadati, invece di sovrascrivere il file esistente. In libFLAC, \u00e8 stata aggiunta una verifica per specificare un collegamento simbolico come file di input e \u00e8 stata implementata una protezione contro la scrittura in tali file durante la sostituzione del file in loco.\n<li class=\"l\"> \u00c8 stata ampliata l'API delle librerie libFLAC e libFLAC++.\n<li class=\"l\"> \u00c8 stata adattata per l'operativit\u00e0 multithread l'implementazione della modalit\u00e0 LMS (Loose Mid-Side), che codifica separatamente le informazioni comuni ai canali stereo e la differenza tra il canale sinistro e quello destro.\n<li class=\"l\"> \u00c8 stata realizzata la compatibilit\u00e0 con la compilazione in WebAssembly tramite il compilatore Emscripten.\n<li class=\"l\"> La specifica del formato FLAC \u00e8 stata fissata nel RFC 9639.\n<li class=\"l\"> Nell'utility flac \u00e8 stata aggiunta una verifica di corrispondenza degli hash MD5 durante la ricodifica di un file FLAC esistente. In modalit\u00e0 di test &#171;flac -t&#187;, ora vengono analizzati tutti i blocchi di metadati e vengono emessi avvisi in caso di rilevamento di metadati ID3v1. \u00c8 stato migliorato il suggerimento integrato sulle opzioni disponibili. \u00c8 stato documentato il formato per la memorizzazione di metadati esterni utilizzati dall'utility flac.\n<li class=\"l\"> La licenza per la documentazione GFDL (GNU Free Documentation License) \u00e8 stata aggiornata alla versione 1.3 (precedentemente era la versione 1.2).         <\/ul>\n<p>Fonte: <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 5.0.1.1 - 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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