{"id":105321,"date":"2022-10-18T09:36:38","date_gmt":"2022-10-18T07:36:38","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/pervyj-vypusk-libcamera-steka-dlya-podderzhki-kamer-v-linux"},"modified":"2022-10-18T09:36:38","modified_gmt":"2022-10-18T07:36:38","slug":"pervyj-vypusk-libcamera-steka-dlya-podderzhki-kamer-v-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/pervyj-vypusk-libcamera-steka-dlya-podderzhki-kamer-v-linux","title":{"rendered":"Libcamera esimene v\u00e4ljaanne, kaameratoe raamatukogu Linuxis","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

P\u00e4rast nelja aasta arendust on v\u00e4lja antud projekti libcamera esimene versioon (0.0.1), mis pakub tarkvarastakki kaameratega, fotokaameratega ja TV-tuuneritega t\u00f6\u00f6tamiseks Linuxis, Androidis ja ChromeOS-is, ning j\u00e4tkab V4L2 API arendamist ning asendab selle aja jooksul. Kuna raamatukogu API on endiselt muutumises ja mitte l\u00f5plikult stabiilne, on projekt arenenud ilma eraldiseisvate v\u00e4ljaanneteta, kasutades pideva arenduse mudelit. Vastuseks distributsioonide vajadusele API muudatuste j\u00e4lgimise ja kokkusobivuse jaoks ning, et lihtsustada raamatukogu pakkimist pakettide kaudu, on n\u00fc\u00fcd otsustanud perioodiliselt koostada v\u00e4ljaandeid, mis peegeldavad ABI ja API muutumise ulatust. Projekti kood on kirjutatud C++ keeles ja levitatakse LGPLv2.1 litsentsi all. <\/p>\n

Projekt areneb Linuxi mitmeosaliste s\u00fcsteemide arendajate ja m\u00f5nede kaamerate tootjate koost\u00f6\u00f6na, et normaliseerida Linuxi toe olukorda nutitelefonide ja sisseehitatud seadmete kaamerate osas, mis on seotud patenteeritud draiveritega. Juba olemasolev Linuxi kerneli API V4L2 loodi kunagi traditsiooniliste eraldiseisvate veebikaamerate kasutamiseks ning ei ole h\u00e4sti kohandatud viimastel aegadel tekkiva suundumusega MCU funktsionaalsuse \u00fcleviimiseks CPU-le. <\/p>\n

\u0412 \u043e\u0442\u043b\u0438\u0447\u0438\u0435 \u043e\u0442 \u0442\u0440\u0430\u0434\u0438\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u043a\u0430\u043c\u0435\u0440, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 \u043f\u0435\u0440\u0432\u0438\u0447\u043d\u043e\u0439 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u044f\u0442\u0441\u044f \u043d\u0430 \u0432\u0441\u0442\u0440\u043e\u0435\u043d\u043d\u043e\u043c \u0432 \u043a\u0430\u043c\u0435\u0440\u0443 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u043c \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0435 (MCU), \u0432\u043e \u0432\u0441\u0442\u0440\u0430\u0438\u0432\u0430\u0435\u043c\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430\u0445 \u0434\u043b\u044f \u0441\u043e\u043a\u0440\u0430\u0449\u0435\u043d\u0438\u044f \u0441\u0442\u043e\u0438\u043c\u043e\u0441\u0442\u0438 \u044d\u0442\u0438 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u0432\u044b\u043d\u043e\u0441\u044f\u0442\u0441\u044f \u043d\u0430 \u043f\u043b\u0435\u0447\u0438 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0433\u043e CPU \u0438 \u0442\u0440\u0435\u0431\u0443\u044e\u0442 \u0443\u0441\u043b\u043e\u0436\u043d\u0451\u043d\u043d\u043e\u0433\u043e \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430, \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0449\u0435\u0433\u043e \u043d\u0435 \u043f\u043e\u0434\u043b\u0435\u0436\u0430\u0449\u0438\u0435 \u043e\u0442\u043a\u0440\u044b\u0442\u0438\u044e \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u044b. \u0412 \u0440\u0430\u043c\u043a\u0430\u0445 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 libcamera \u0441\u0442\u043e\u0440\u043e\u043d\u043d\u0438\u043a\u0438 \u0421\u041f\u041e \u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0438 \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u044f \u043f\u043e\u043f\u044b\u0442\u0430\u043b\u0438\u0441\u044c \u0441\u043e\u0437\u0434\u0430\u0442\u044c \u043a\u043e\u043c\u043f\u0440\u043e\u043c\u0438\u0441\u0441\u043d\u043e\u0435 \u0440\u0435\u0448\u0435\u043d\u0438\u0435, \u0441 \u043e\u0434\u043d\u043e\u0439 \u0441\u0442\u043e\u0440\u043e\u043d\u044b \u0443\u0434\u043e\u0432\u043b\u0435\u0442\u0432\u043e\u0440\u044f\u044e\u0449\u0435\u0435 \u043f\u043e\u0442\u0440\u0435\u0431\u043d\u043e\u0441\u0442\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0433\u043e \u041f\u041e, \u0430 \u0441 \u0434\u0440\u0443\u0433\u043e\u0439 — \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0435 \u0437\u0430\u0449\u0438\u0442\u0438\u0442\u044c \u0438\u043d\u0442\u0435\u043b\u043b\u0435\u043a\u0442\u0443\u0430\u043b\u044c\u043d\u0443\u044e \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0441\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u0439 \u043a\u0430\u043c\u0435\u0440. <\/p>\n

Libcamera teekond on t\u00e4ielikult rakendatud kasutaja ruumis. Eksisteerivate tarkvarakeskkondade ja rakendustega \u00fchilduvuse tagamiseks pakutakse API V4L, Gstreamer ja Android Camera HAL \u00fchilduvuse kihtide kaudu. Iga kaamera jaoks spetsiifilised kasutajaliidese komponendid on vormistatud moodulitena, mis t\u00f6\u00f6tavad eraldi protsessides ja suhtlevad raamatukoguga l\u00e4bi IPC. Moodulitel ei ole seadmele otsest juurdep\u00e4\u00e4su ning nad suhtlevad riistvaraga vahendava API kaudu, mille kaudu tehtud p\u00e4ringud kontrollitakse, filtreeritakse ja piiratakse ainult funktsionaalsusele, mis on vajalik kaamera juhtimiseks. <\/p>\n

Raamatukogu pakub ka juurdep\u00e4\u00e4su algoritmidele piltide ja videote kvaliteedi t\u00f6\u00f6tlemiseks ja parandamiseks (valge tasakaalu korrigeerimine, m\u00fcrasummutus, video stabiliseerimine, automaatne teravustamine, s\u00e4rituse valimine jne), mida saab \u00fchendada avatud v\u00e4liste raamatukogudena v\u00f5i om proprietaarsed isoleeritud moodulitena. API annab juurdep\u00e4\u00e4su sellistele funktsioonidele nagu olemasolevate v\u00e4listest ja sisseehitatud kaameratest funktsioonide m\u00e4\u00e4ramine, seadme profiilide kasutamine, kaamerate \u00fchendamise ja lahti\u00fchendamise s\u00fcndmuste t\u00f6\u00f6tlemine, andmete salvestamise juhtimine kaameratest eraldi kaadrite tasemel ning v\u00e4lklambi t\u00f6\u00f6 s\u00fcnkroniseerimine piltide salvestamisega. V\u00f5imalik on eraldi t\u00f6\u00f6tada mitme kaameraga s\u00fcsteemis ja korraldada \u00fche kaameraga samaaegselt mitme videovoo salvestamist (n\u00e4iteks \u00fcks madala eraldusv\u00f5imega videokonverentsiks ja teine k\u00f5rge eraldusv\u00f5imega arhiivi salvestamiseks kettale).
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041f\u043e\u0441\u043b\u0435 \u0447\u0435\u0442\u044b\u0440\u0451\u0445 \u043b\u0435\u0442 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d \u043f\u0435\u0440\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0435\u043a\u0442\u0430 libcamera (0.0.1), \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u044e\u0449\u0435\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0439 \u0441\u0442\u0435\u043a \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u0441 \u0432\u0438\u0434\u0435\u043e\u043a\u0430\u043c\u0435\u0440\u0430\u043c\u0438, \u0444\u043e\u0442\u043e\u043a\u0430\u043c\u0435\u0440\u0430\u043c\u0438 \u0438 TV-\u0442\u044e\u043d\u0435\u0440\u0430\u043c\u0438 \u0432 Linux, Android \u0438 ChromeOS, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 API V4L2 \u0438 \u0441\u043e \u0432\u0440\u0435\u043c\u0435\u043d\u0435\u043c \u0437\u0430\u043c\u0435\u043d\u0438\u0442 \u0435\u0433\u043e. \u0422\u0430\u043a \u043a\u0430\u043a API \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 \u0435\u0449\u0451 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442 \u043c\u0435\u043d\u044f\u0442\u044c\u0441\u044f \u0438 \u043e\u043a\u043e\u043d\u0447\u0430\u0442\u0435\u043b\u044c\u043d\u043e \u043d\u0435 \u0441\u0442\u0430\u0431\u0438\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d, \u0434\u043e \u0441\u0438\u0445 \u043f\u043e\u0440 \u043f\u0440\u043e\u0435\u043a\u0442 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u043b\u0441\u044f \u0431\u0435\u0437 \u043e\u0442\u0432\u0435\u0442\u0432\u043b\u0435\u043d\u0438\u044f \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0445 \u0432\u044b\u043f\u0443\u0441\u043a\u043e\u0432 […]<\/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-105321","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\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\n","aioseo_head_json":{"title":"\ud83e\udd47Libcamera esimene v\u00e4ljaanne, kaamerate toe stack Linuxis | ProHoster","description":"Neljandan arendamise j\u00e4rel on valminud projekti libcamera esimene v\u00e4ljaanne (0.0.1), mis pakub tarkvarastakki videokaamerate, fotokaamerate ja TV-tuunerite toetamiseks Linuxi, Androidi ja ChromeOSis, j\u00e4tkates V4L2 API arendamist ning asendades seda aja jooksul. Kuna raamistik on endiselt arengu faasis ja ei ole l\u00f5plikult stabiliseerunud, on projekt j\u00e4tkuvalt arenenud ilma eraldi v\u00e4ljaannete harudeta.","canonical_url":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/pervyj-vypusk-libcamera-steka-dlya-podderzhki-kamer-v-linux","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"et_EE","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041f\u0435\u0440\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a libcamera, \u0441\u0442\u0435\u043a\u0430 \u0434\u043b\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u043a\u0430\u043c\u0435\u0440 \u0432 Linux | ProHoster","og:description":"\u041f\u043e\u0441\u043b\u0435 \u0447\u0435\u0442\u044b\u0440\u0451\u0445 \u043b\u0435\u0442 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d \u043f\u0435\u0440\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0435\u043a\u0442\u0430 libcamera (0.0.1), \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u044e\u0449\u0435\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0439 \u0441\u0442\u0435\u043a \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u0441 \u0432\u0438\u0434\u0435\u043e\u043a\u0430\u043c\u0435\u0440\u0430\u043c\u0438, \u0444\u043e\u0442\u043e\u043a\u0430\u043c\u0435\u0440\u0430\u043c\u0438 \u0438 TV-\u0442\u044e\u043d\u0435\u0440\u0430\u043c\u0438 \u0432 Linux, Android \u0438 ChromeOS, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 API V4L2 \u0438 \u0441\u043e \u0432\u0440\u0435\u043c\u0435\u043d\u0435\u043c \u0437\u0430\u043c\u0435\u043d\u0438\u0442 \u0435\u0433\u043e. \u0422\u0430\u043a \u043a\u0430\u043a API \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 \u0435\u0449\u0451 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442 \u043c\u0435\u043d\u044f\u0442\u044c\u0441\u044f \u0438 \u043e\u043a\u043e\u043d\u0447\u0430\u0442\u0435\u043b\u044c\u043d\u043e \u043d\u0435 \u0441\u0442\u0430\u0431\u0438\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d, \u0434\u043e \u0441\u0438\u0445 \u043f\u043e\u0440 \u043f\u0440\u043e\u0435\u043a\u0442 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u043b\u0441\u044f \u0431\u0435\u0437 \u043e\u0442\u0432\u0435\u0442\u0432\u043b\u0435\u043d\u0438\u044f \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0445 \u0432\u044b\u043f\u0443\u0441\u043a\u043e\u0432","og:url":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/pervyj-vypusk-libcamera-steka-dlya-podderzhki-kamer-v-linux","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2022-10-18T07:36:38+00:00","article:modified_time":"2022-10-18T07:36:38+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/posts\/105321","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/comments?post=105321"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/posts\/105321\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/media?parent=105321"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/categories?post=105321"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/tags?post=105321"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}