{"id":11603,"date":"2024-08-09T00:58:51","date_gmt":"2024-08-08T21:58:51","guid":{"rendered":"https:\/\/global.tab-tv.com\/sk\/?p=11603"},"modified":"2025-01-08T12:21:53","modified_gmt":"2025-01-08T09:21:53","slug":"prenos-prikazov-hdmi-cec-a-komunikacia-so-zariadeniami","status":"publish","type":"post","link":"https:\/\/global.tab-tv.com\/sk\/prenos-prikazov-hdmi-cec-a-komunikacia-so-zariadeniami\/","title":{"rendered":"Prenos pr\u00edkazov HDMI CEC a komunik\u00e1cia so zariadeniami"},"content":{"rendered":"\n

Pod\u013ea \u0161tandardu HDMI CEC m\u00f4\u017ee podpora a\u017e 15 r\u00f4znych zariaden\u00ed. V praxi v\u0161ak v\u00fdrobcovia spotrebnej elektroniky obvykle realizuj\u00fa podporu maxim\u00e1lne \u0161tyroch zariaden\u00ed na z\u00e1klade po\u010dtu HDMI portov na telev\u00edzore; podpora v\u00e4\u010d\u0161ieho po\u010dtu zariaden\u00ed je v\u00e4\u010d\u0161inou potrebn\u00e1 v priemyselnom sektore. Tento po\u010det je dostato\u010dn\u00fd pre obchodn\u00e9 telev\u00edzory a in\u00e9 zariadenia.<\/p>\n\n\n\n

Ke\u010f je HDMI CEC aktivovan\u00fd, nov\u00e9 zariadenie v sieti sa zaregistruje a dostane logick\u00fa adresu, ktor\u00e1 je vybran\u00e1 z vo\u013en\u00fdch adries. Zariadenie pren\u00e1\u0161a inform\u00e1cie o sebe (telev\u00edzor, prehr\u00e1va\u010d, streamovacie zariadenie, zvukov\u00e9 zariadenie), ktor\u00e9 s\u00fa potrebn\u00e9 na spr\u00e1vnu funkciu. Jedno zo zariaden\u00ed je ozna\u010den\u00e9 ako hlavn\u00e9; ke\u010f\u017ee HDMI je prim\u00e1rne video rozhranie, telev\u00edzor alebo monitor bude v\u017edy vybran\u00fd ako hlavn\u00e9 zariadenie.<\/p>\n\n\n\n

Pochopenie \u0160trukt\u00fary Pr\u00edkazov HDMI CEC<\/strong><\/h2>\n\n\n\n

Pr\u00edkazy HDMI CEC (Consumer Electronics Control) s\u00fa zlo\u017een\u00e9 z 10 bitov. Zvy\u010dajne s\u00fa tieto pr\u00edkazy rozdelen\u00e9 do dvoch blokov. Prv\u00fd blok identifikuje zariadenie, ktor\u00e9 iniciuje pr\u00edkaz, a cie\u013eov\u00e9 zariadenie, zatia\u013e \u010do druh\u00fd blok obsahuje konkr\u00e9tny pr\u00edkaz, ktor\u00fd m\u00e1 by\u0165 vykonan\u00fd.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n

V sc\u00e9n\u00e1roch, kde pr\u00edkaz nemus\u00ed by\u0165 adresovan\u00fd konkr\u00e9tnemu zariadeniu, sa pren\u00e1\u0161a iba blok pr\u00edkazu. V\u0161etky zariadenia pripojen\u00e9 k CEC zbernici dostan\u00fa a vykonaj\u00fa tento pr\u00edkaz. To je pomerne be\u017en\u00e1 situ\u00e1cia.<\/p>\n\n\n\n

Napr\u00edklad v nastaven\u00ed s telev\u00edzorom, Fire Stick a zvukovou li\u0161tou, bez oh\u013eadu na to, ktor\u00e9 zariadenie sa zapne ako prv\u00e9, aktivovan\u00e9 zariadenie odo\u0161le pr\u00edkaz HDMI CEC na zapnutie v\u0161etk\u00fdch zariaden\u00ed pripojen\u00fdch k CEC zbernici.<\/p>\n\n\n\n

\u010ealej, ak sledujete video na streamovacom zariaden\u00ed a chcete ho pozastavi\u0165, m\u00f4\u017eete pou\u017ei\u0165 dia\u013ekov\u00fd ovl\u00e1da\u010d telev\u00edzora a stla\u010di\u0165 tla\u010didlo pauzy. Telev\u00edzor vytvor\u00ed pr\u00edkaz na pozastavenie a odo\u0161le ho na CEC zbernicu. V tomto pr\u00edpade na pr\u00edkaz zareaguje iba Fire Stick, preto\u017ee rozpozn\u00e1va funkciu pozastavenia. Zvukov\u00e1 li\u0161ta, ktor\u00e1 tento pr\u00edkaz nepodporuje, ho jednoducho ignoruje.<\/p>\n\n\n\n

4o mini<\/p>\n","protected":false},"excerpt":{"rendered":"

Pod\u013ea \u0161tandardu HDMI CEC m\u00f4\u017ee podpora a\u017e 15 r\u00f4znych zariaden\u00ed. V praxi v\u0161ak v\u00fdrobcovia spotrebnej elektroniky obvykle realizuj\u00fa podporu maxim\u00e1lne \u0161tyroch zariaden\u00ed na z\u00e1klade po\u010dtu HDMI portov na telev\u00edzore; podpora v\u00e4\u010d\u0161ieho po\u010dtu zariaden\u00ed je v\u00e4\u010d\u0161inou potrebn\u00e1 v priemyselnom sektore. Tento po\u010det je dostato\u010dn\u00fd pre obchodn\u00e9 telev\u00edzory a in\u00e9 zariadenia. Ke\u010f je HDMI CEC aktivovan\u00fd, nov\u00e9 […]<\/p>\n","protected":false},"author":1,"featured_media":12241,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[86,26],"tags":[87],"class_list":{"0":"post-11603","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-technologia","8":"category-tv","9":"tag-technologia"},"_links":{"self":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/11603","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/comments?post=11603"}],"version-history":[{"count":2,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/11603\/revisions"}],"predecessor-version":[{"id":12242,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/11603\/revisions\/12242"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/media\/12241"}],"wp:attachment":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/media?parent=11603"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/categories?post=11603"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/tags?post=11603"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}