{"id":104110,"date":"2022-05-21T15:37:02","date_gmt":"2022-05-21T13:37:02","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/ubuntu-22-10-perejdyot-na-obrabotku-zvuka-pri-pomoshhi-pipewire-vmesto-pulseaudio"},"modified":"2022-05-21T15:37:02","modified_gmt":"2022-05-21T13:37:02","slug":"ubuntu-22-10-perejdyot-na-obrabotku-zvuka-pri-pomoshhi-pipewire-vmesto-pulseaudio","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/ubuntu-22-10-perejdyot-na-obrabotku-zvuka-pri-pomoshhi-pipewire-vmesto-pulseaudio","title":{"rendered":"Ubuntu 22.10 migrar\u00e1 para o processamento de \u00e1udio usando PipeWire em vez de PulseAudio","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>No reposit\u00f3rio onde est\u00e1 sendo desenvolvido o lan\u00e7amento do Ubuntu 22.10, foi feita a transi\u00e7\u00e3o para o uso padr\u00e3o do servidor multim\u00eddia PipeWire para processamento de \u00e1udio. Os pacotes relacionados ao PulseAudio foram removidos dos conjuntos desktop e desktop-minimal, e para garantir a compatibilidade, em vez das bibliotecas para intera\u00e7\u00e3o com o PulseAudio, foi adicionada uma camada funcional sobre o PipeWire, chamada pipewire-pulse, que permite manter o funcionamento de todos os clientes existentes do PulseAudio.       <\/p>\n<p>A decis\u00e3o de migra\u00e7\u00e3o completa para o PipeWire no Ubuntu 22.10 foi confirmada por Heather Ellsworth, da Canonical. Observa-se que no Ubuntu 22.02 ambos estavam em uso no sistema. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pt\/server\/dts-los-angeles\/\"   title=\"servidor\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3816\">servidor<\/a> \u2014 O PipeWire foi utilizado para processar v\u00eddeo durante a grava\u00e7\u00e3o de screencasts e para fornecer acesso \u00e0 tela, mas o \u00e1udio continuou a ser processado usando PulseAudio. No Ubuntu 22.10, apenas o PipeWire ser\u00e1 mantido. H\u00e1 dois anos, uma mudan\u00e7a semelhante j\u00e1 havia sido implementada na distribui\u00e7\u00e3o Fedora 34, o que permitiu oferecer recursos de processamento de \u00e1udio profissional, eliminar a fragmenta\u00e7\u00e3o e unificar a infraestrutura de \u00e1udio para diferentes aplica\u00e7\u00f5es.        <\/p>\n<p>O PipeWire oferece um modelo de seguran\u00e7a avan\u00e7ado que permite gerenciar o acesso em n\u00edvel de dispositivos individuais e de fluxos espec\u00edficos, facilitando a organiza\u00e7\u00e3o do encaminhamento de \u00e1udio e v\u00eddeo de e para cont\u00eaineres isolados. O PipeWire pode processar quaisquer fluxos multim\u00eddia e \u00e9 capaz de misturar e redirecionar n\u00e3o apenas fluxos de \u00e1udio, mas tamb\u00e9m fluxos de v\u00eddeo, al\u00e9m de gerenciar fontes de v\u00eddeo (dispositivos de captura de v\u00eddeo, webcams ou o conte\u00fado da tela gerado por aplicativos). O PipeWire tamb\u00e9m pode atuar como um servidor de som, proporcionando lat\u00eancias m\u00ednimas e funcionalidade que combina os recursos do PulseAudio e JACK, levando em conta as necessidades de sistemas de processamento profissional de \u00e1udio, que n\u00e3o podiam ser atendidas pelo PulseAudio.      <\/p>\n<p>Principais funcionalidades:  <\/p>\n<ul>\n<li class=\"l\"> Captura e reprodu\u00e7\u00e3o de \u00e1udio e v\u00eddeo com lat\u00eancias m\u00ednimas;  <\/li>\n<li class=\"l\"> Recursos para processamento de v\u00eddeo e \u00e1udio em tempo real;  <\/li>\n<li class=\"l\"> Arquitetura multiprocessada que permite o compartilhamento de conte\u00fado entre m\u00faltiplos aplicativos;    <\/li>\n<li class=\"l\"> Modelo de processamento baseado em um gr\u00e1fico de n\u00f3s multim\u00eddia com suporte a ciclos de feedback e atualiza\u00e7\u00f5es at\u00f4micas do gr\u00e1fico. \u00c9 permitido conectar manipuladores tanto dentro do servidor quanto plugins externos;  <\/li>\n<li class=\"l\"> Interface de acesso eficiente a streams de v\u00eddeo atrav\u00e9s da transmiss\u00e3o de descritores de arquivos e acesso ao \u00e1udio atrav\u00e9s de buffers circulares compartilhados;  <\/li>\n<li class=\"l\"> Capacidade de processamento de dados multim\u00eddia de quaisquer processos;  <\/li>\n<li class=\"l\"> Disponibilidade de um plugin para GStreamer para facilitar a integra\u00e7\u00e3o com aplicativos existentes;  <\/li>\n<li class=\"l\"> Suporte para ambientes isolados e Flatpak;  <\/li>\n<li class=\"l\"> Suporte a plugins no formato SPA (Simple Plugin API) e possibilidade de criar plugins que operam em modo de tempo real r\u00edgido;  <\/li>\n<li class=\"l\"> Sistema flex\u00edvel de negocia\u00e7\u00e3o de formatos multim\u00eddia utilizados e aloca\u00e7\u00e3o de buffers;  <\/li>\n<li class=\"l\"> Uso de um \u00fanico processo em segundo plano para roteamento de \u00e1udio e v\u00eddeo. Capacidade de operar na forma de um servidor de \u00e1udio, hub para fornecer v\u00eddeo a aplicativos (por exemplo, para a API de screencast do gnome-shell) e servidor para gerenciar o acesso a dispositivos de captura de v\u00eddeo.  <\/li>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57229\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0438, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0432\u0435\u0434\u0451\u0442\u0441\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u0432\u044b\u043f\u0443\u0441\u043a\u0430 Ubuntu 22.10, \u043f\u0440\u043e\u0438\u0437\u0432\u0435\u0434\u0451\u043d \u043f\u0435\u0440\u0435\u0445\u043e\u0434 \u043d\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u043c\u0443\u043b\u044c\u0442\u0438\u043c\u0435\u0434\u0438\u0439\u043d\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430 PipeWire \u0434\u043b\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0437\u0432\u0443\u043a\u0430. \u041f\u0430\u043a\u0435\u0442\u044b, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0435 \u0441 PulseAudio \u0443\u0434\u0430\u043b\u0435\u043d\u044b \u0438\u0437 \u043d\u0430\u0431\u043e\u0440\u043e\u0432 desktop \u0438 desktop-minimal, \u0430 \u0434\u043b\u044f \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u0438 \u0432\u043c\u0435\u0441\u0442\u043e \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a \u0434\u043b\u044f \u0432\u0437\u0430\u0438\u043c\u043e\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f \u0441 PulseAudio \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0430 \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0449\u0430\u044f \u043f\u043e\u0432\u0435\u0440\u0445 PipeWire \u043f\u0440\u043e\u0441\u043b\u043e\u0439\u043a\u0430 pipewire-pulse, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0441\u043e\u0445\u0440\u0430\u043d\u0438\u0442\u044c \u0440\u0430\u0431\u043e\u0442\u0443 \u0432\u0441\u0435\u0445 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0445 \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u0432 PulseAudio. [&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-104110","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0438, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0432\u0435\u0434\u0451\u0442\u0441\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u0432\u044b\u043f\u0443\u0441\u043a\u0430 Ubuntu 22.10, \u043f\u0440\u043e\u0438\u0437\u0432\u0435\u0434\u0451\u043d \u043f\u0435\u0440\u0435\u0445\u043e\u0434 \u043d\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u043e 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