{"id":121114,"date":"2024-12-22T15:46:58","date_gmt":"2024-12-22T13:46:58","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/format-szhatiya-flac-oficzialno-zakreplyon-v-rfc-9639"},"modified":"2024-12-22T15:46:58","modified_gmt":"2024-12-22T13:46:58","slug":"format-szhatiya-flac-oficzialno-zakreplyon-v-rfc-9639","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/format-szhatiya-flac-oficzialno-zakreplyon-v-rfc-9639","title":{"rendered":"O formato de compress\u00e3o FLAC foi oficialmente formalizado na RFC 9639","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

O Comit\u00ea IETF (Internet Engineering Task Force), respons\u00e1vel pelo desenvolvimento de protocolos e arquitetura da internet, concluiu a forma\u00e7\u00e3o do RFC para o codec de \u00e1udio livre FLAC (Free Lossless Audio Codec), desenvolvido pela comunidade Xiph.Org. A especifica\u00e7\u00e3o relacionada ao formato foi publicada sob o identificador RFC 9639. O RFC recebeu o status de 'Proposta de Padr\u00e3o' e descreve o estado atual do formato de compress\u00e3o FLAC, exceto pela adi\u00e7\u00e3o expl\u00edcita do suporte a \u00e1udio de 32 bits e a introdu\u00e7\u00e3o de restri\u00e7\u00f5es para sua adapta\u00e7\u00e3o. <\/p>\n

Espera-se que a publica\u00e7\u00e3o do RFC simplifique a cria\u00e7\u00e3o de novas implementa\u00e7\u00f5es do decodificador FLAC do zero e possibilite a recupera\u00e7\u00e3o do suporte ao formato para acessar arquivos de \u00e1udio preservados em um futuro distante, depois que o formato FLAC e suas implementa\u00e7\u00f5es ca\u00edrem no esquecimento. Anteriormente, os desenvolvedores recebiam documenta\u00e7\u00e3o do projeto Xiph e uma implementa\u00e7\u00e3o de refer\u00eancia que continha todos os detalhes necess\u00e1rios. Com a chegada do RFC, todas as informa\u00e7\u00f5es foram reunidas em um \u00fanico documento, liberando os desenvolvedores da necessidade de consultar o c\u00f3digo-fonte da biblioteca de refer\u00eancia ou examinar arquivos de listas de discuss\u00e3o em busca de detalhes. <\/p>\n

O codec FLAC utiliza m\u00e9todos de codifica\u00e7\u00e3o sem perda de dados (lossless), garantindo a preserva\u00e7\u00e3o total da qualidade original do fluxo de \u00e1udio e sua identidade com a vers\u00e3o de refer\u00eancia. Os m\u00e9todos de compress\u00e3o sem perda utilizados permitem reduzir o tamanho do fluxo de \u00e1udio original em 50-60%. O FLAC \u00e9 um formato de fluxo totalmente livre, o que implica n\u00e3o apenas a abertura de bibliotecas com implementa\u00e7\u00f5es das fun\u00e7\u00f5es de codifica\u00e7\u00e3o e decodifica\u00e7\u00e3o, mas tamb\u00e9m a aus\u00eancia de restri\u00e7\u00f5es quanto ao uso e \u00e0 cria\u00e7\u00e3o de variantes derivadas. O c\u00f3digo das bibliotecas de refer\u00eancia \u00e9 distribu\u00eddo sob a licen\u00e7a BSD.
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u0438\u0442\u0435\u0442 IETF (Internet Engineering Task Force), \u0437\u0430\u043d\u0438\u043c\u0430\u044e\u0449\u0438\u0439\u0441\u044f \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435\u043c \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 \u0438 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b \u0438\u043d\u0442\u0435\u0440\u043d\u0435\u0442\u0430, \u0437\u0430\u0432\u0435\u0440\u0448\u0438\u043b \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 RFC \u0434\u043b\u044f \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 (Free Lossless Audio Codec), \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043d\u043d\u043e\u0433\u043e \u0441\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e\u043c Xiph.Org. \u0421\u0432\u044f\u0437\u0430\u043d\u043d\u0430\u044f \u0441 \u0444\u043e\u0440\u043c\u0430\u0442\u043e\u043c \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430 \u043f\u043e\u0434 \u0438\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u043e\u043c RFC 9639. RFC \u043f\u043e\u043b\u0443\u0447\u0438\u043b \u0441\u0442\u0430\u0442\u0443\u0441 «\u041f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u043d\u043e\u0433\u043e \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0430» \u0438 \u043e\u043f\u0438\u0441\u044b\u0432\u0430\u0435\u0442 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u0435 \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0444\u043e\u0440\u043c\u0430\u0442\u0430 \u0441\u0436\u0430\u0442\u0438\u044f FLAC, \u0437\u0430 \u0438\u0441\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435\u043c \u044f\u0432\u043d\u043e\u0433\u043e \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 32-\u0440\u0430\u0437\u0440\u044f\u0434\u043d\u043e\u0433\u043e \u0437\u0432\u0443\u043a\u0430 […]<\/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-121114","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47O formato de compress\u00e3o FLAC foi oficialmente consolidade no RFC 9639 | ProHoster","description":"O Comit\u00ea IETF (Internet Engineering Task Force), que trabalha no desenvolvimento de protocolos e arquitetura da internet, concluiu a elabora\u00e7\u00e3o do RFC para o codec de \u00e1udio FLAC (Free Lossless Audio Codec), 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\u0437\u0430\u043d\u0438\u043c\u0430\u044e\u0449\u0438\u0439\u0441\u044f \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435\u043c \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 \u0438 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b \u0438\u043d\u0442\u0435\u0440\u043d\u0435\u0442\u0430, \u0437\u0430\u0432\u0435\u0440\u0448\u0438\u043b \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 RFC \u0434\u043b\u044f \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 (Free Lossless Audio Codec), 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