{"id":103188,"date":"2022-02-04T09:36:49","date_gmt":"2022-02-04T07:36:49","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dostupen-multimedijnyj-frejmvork-gstreamer-1-20-0"},"modified":"2022-02-04T09:36:49","modified_gmt":"2022-02-04T07:36:49","slug":"dostupen-multimedijnyj-frejmvork-gstreamer-1-20-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/dostupen-multimedijnyj-frejmvork-gstreamer-1-20-0","title":{"rendered":"\u00c8 disponibile il framework multimediale GStreamer 1.20.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Dopo un anno e mezzo di sviluppo, \u00e8 stato rilasciato GStreamer 1.20, un insieme di componenti cross-platform scritto in C per la creazione di un'ampia gamma di applicazioni multimediali, da lettori multimediali e convertitori di file audio\/video a applicazioni VoIP e sistemi di streaming. Il codice di GStreamer \u00e8 distribuito sotto la licenza LGPLv2.1. Sono disponibili anche aggiornamenti per i plugin gst-plugins-base 1.20, gst-plugins-good 1.20, gst-plugins-bad 1.20, gst-plugins-ugly 1.20, insieme a un wrapper gst-libav 1.20 e il server di streaming gst-rtsp-server 20. A livello di API e ABI, la nuova versione \u00e8 retrocompatibile con il ramo 1.0. Gli assemblaggi binari saranno presto disponibili per Android, iOS, macOS e Windows (su Linux si consiglia di utilizzare i pacchetti forniti dalla distribuzione).      <\/p>\n<p>Principali miglioramenti di GStreamer 1.20:  <\/p>\n<ul>\n<li class=\"l\"> Lo sviluppo su GitLab \u00e8 stato spostato all'uso di un unico repository comune per tutti i moduli.\n<li class=\"l\"> \u00c8 stata aggiunta una nuova libreria di alto livello GstPlay, che sostituisce l'API GstPlayer e offre funzioni simili per la riproduzione dei contenuti, differenti per l'uso della bus di messaggi per notificare le applicazioni invece dei segnali GObject.\n<li class=\"l\"> \u00c8 stata aggiunta la supporto per la decodifica delle informazioni di trasparenza nel formato WebM, che consente di riprodurre video VP8\/VP9 con aree trasparenti.\n<li class=\"l\"> Nei profili di codifica \u00e8 stata aggiunta la possibilit\u00e0 di configurare propriet\u00e0 aggiuntive specifiche per le applicazioni.\n<li class=\"l\"> Nel Compositore \u00e8 stata implementata la supporto per la trasformazione e la mescolanza video in modalit\u00e0 multithread.\n<li class=\"l\"> Nelle classi depayloader e payloader \u00e8 stata uniformata la supporto per la gestione di intestazioni RTP aggiuntive (Estensioni Header RTP).\n<li class=\"l\"> \u00c8 stata aggiunta la supporto per il meccanismo di correzione degli errori preventiva SMPTE 2022-1 2-D (Forward Error Correction).\n<li class=\"l\"> In encodebin e transcodebin per i codec VP8, VP9 e H.265 \u00e8 stata implementata la modalit\u00e0 di codifica intelligente (\u00absmart encoding\u00bb), in cui la ricodifica avviene solo se necessario, mentre nel resto del tempo viene inoltrato il flusso esistente.\n<li class=\"l\"> \u00c8 stata garantita la compatibilit\u00e0 del plugin souphttpsrc con libsoup2 e libsoup3.\n<li class=\"l\"> \u00c8 stata aggiunta la possibilit\u00e0 di decodificare i dati in ingresso a livello di fotogrammi intermedi (sub-frame), consentendo di avviare la decodifica senza attendere il ricevimento del fotogramma completo. Questo ottimizzazione \u00e8 stata coinvolta nei decodificatori OpenJPEG JPEG 2000, FFmpeg H.264 e OpenMAX H.264\/H.265.\n<li class=\"l\"> Nella decodifica dei video per i protocolli RTP, WebRTC e RTSP \u00e8 garantito un trattamento automatico della perdita di pacchetti, dei dati danneggiati e delle richieste di fotogrammi chiave.\n<li class=\"l\"> Negli imballatori dei contenitori multimediali mp4 e Matroska \u00e8 stata aggiunta la supporto per la modifica dei dati del codec in tempo reale, consentendo di cambiare profilo, livello e risoluzione per i flussi in ingresso H.264\/H.265.\n<li class=\"l\"> \u00c8 stata aggiunta la modalit\u00e0 di creazione di contenitori multimediali mp4 frammentati.\n<li class=\"l\"> Nel porto basato su WPE (WebKit Port for Embedded) \u00e8 stato aggiunto il supporto audio.\n<li class=\"l\"> \u00c8 stata aggiunta la possibilit\u00e0 di utilizzare CUDA per la conversione dello spazio colore, il ridimensionamento degli elementi e il caricamento degli elementi.\n<li class=\"l\"> Per gli elementi OpenGL glupload e gldownload \u00e8 stato aggiunto il supporto per la memoria NVMM (NVIDIA Memory Module).\n<li class=\"l\"> Migliorato il supporto per WebRTC.\n<li class=\"l\"> \u00c8 stato proposto un nuovo plugin per VA-API (Video Acceleration API), che supporta pi\u00f9 decoder e elementi di post-elaborazione.\n<li class=\"l\"> Nell'API AppSink \u00e8 stato aggiunto il supporto per eventi oltre a buffer e liste di buffer.\n<li class=\"l\"> In AppSrc sono state aggiunte impostazioni aggiuntive per le code interne.\n<li class=\"l\"> Aggiornate le binding in Rust e aggiunti 26 nuovi plugin scritti in Rust (gst-plugins-rs).\n<li class=\"l\"> Aggiunti gli elementi aesdec e aesenc per la crittografia e decrittografia utilizzando l'algoritmo AES.\n<li class=\"l\"> Aggiunti gli elementi fakeaudiosink e videocodectestsink per il test e il debug.\n<li class=\"l\"> Migliorati gli strumenti per la creazione di build minimaliste di GStreamer.\n<li class=\"l\"> Aggiunta la possibilit\u00e0 di compilare con FFmpeg 5.0.\n<li class=\"l\"> Per Linux sono state implementate varianti dei codec MPEG-2 e VP9, funzionanti senza salvataggio dello stato (Stateless).\n<li class=\"l\"> Per Windows, nel decodificatore basato su Direct3D11\/DXVA \u00e8 stato aggiunto il supporto per AV1 e MPEG-2.    <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56635\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u043f\u043e\u043b\u0443\u0442\u043e\u0440\u0430 \u043b\u0435\u0442 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0441\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 GStreamer 1.20, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u043e\u0433\u043e \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u0421\u0438 \u043a\u0440\u043e\u0441\u0441\u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0435\u043d\u043d\u043e\u0433\u043e \u043d\u0430\u0431\u043e\u0440\u0430 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u043e\u0432 \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0448\u0438\u0440\u043e\u043a\u043e\u0433\u043e \u0441\u043f\u0435\u043a\u0442\u0440\u0430 \u043c\u0443\u043b\u044c\u0442\u0438\u043c\u0435\u0434\u0438\u0430 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439, \u043e\u0442 \u043c\u0435\u0434\u0438\u0430\u043f\u043b\u0435\u0435\u0440\u043e\u0432 \u0438 \u043a\u043e\u043d\u0432\u0435\u0440\u0442\u0435\u0440\u043e\u0432 \u0430\u0443\u0434\u0438\u043e\/\u0432\u0438\u0434\u0435\u043e \u0444\u0430\u0439\u043b\u043e\u0432, \u0434\u043e VoIP-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u0438 \u0441\u0438\u0441\u0442\u0435\u043c \u043f\u043e\u0442\u043e\u043a\u043e\u0432\u043e\u0433\u043e \u0432\u0435\u0449\u0430\u043d\u0438\u044f. \u041a\u043e\u0434 GStreamer \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\u0435\u0439 LGPLv2.1. \u041e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u044b \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u043b\u0430\u0433\u0438\u043d\u043e\u0432 gst-plugins-base 1.20, gst-plugins-good 1.20, gst-plugins-bad 1.20, gst-plugins-ugly 1.20, \u0430 \u0442\u0430\u043a\u0436\u0435 \u043e\u0431\u0432\u044f\u0437\u043a\u0430 gst-libav [&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-103188","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=\"\u041f\u043e\u0441\u043b\u0435 \u043f\u043e\u043b\u0443\u0442\u043e\u0440\u0430 \u043b\u0435\u0442 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0441\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 GStreamer 1.20, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u043e\u0433\u043e \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u0421\u0438 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