P\u00e4rast nelja aastat arendust on loodud projekti libcamera esimene v\u00e4ljaanne (0.0.1), mis pakub tarkvarastakki videokaamerate, fotokaamerate ja TV-tuunerite kasutamiseks Linuxis, Androidis ja ChromeOSis, edasi arendades V4L2 API-d ning asendades seda pika aja jooksul. Kuna API teek on endiselt muutumises ja pole veel l\u00f5plikult stabiilne, on projekt j\u00e4tkuvalt arenenud ilma eraldi v\u00e4ljaannete harudeta pideva arenduse mudelis. Vastuseks jaotuste vajadusele j\u00e4lgida API muudatusi, mis m\u00f5jutavad \u00fchilduvust, ja lihtsustada teegi pakkumist pakettidena on n\u00fc\u00fcd otsustatud perioodiliselt moodustada v\u00e4ljalaskeid, mis peegeldavad ABI ja API muudatuste ulatust. Projekti kood on kirjutatud C++ ja levitatakse LGPLv2.1 litsentsi alusel. <\/p>\n
Projekt areneb Linuxi tuuma multimeedia alams\u00fcsteemide arendajate koost\u00f6\u00f6s m\u00f5ningate kaameratootjatega, et normaliseerida olukorda Linuxis nutitelefonide ja sisseehitusseadmestiku kaamerate toe osas, mis on seotud patenteeritud draiveritega. Juba olemasolev Linuxi tuuma API V4L2 loodi kunagi traditsiooniliste eraldiseisvate veebikaamerate kasutamiseks ja ei ole h\u00e4sti kohandatud viimase aja trendiga, kus MCU funktsionaalsus viidakse CPU kanda. <\/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
Pakutud libcamera teek on t\u00e4ielikult kasutaja ruumis. \u00dchildumise tagamiseks olemasolevate tarkvarakeskkondade ja rakendustega pakuvad nad API V4L, Gstreamer ja Android Camera HAL \u00fchisosa. Iga kaamera spetsiifilised valmistaja komponentide interaktsioonid riistvaraga on vormistatud moodulitena, mis t\u00f6\u00f6tavad eraldi protsessides ja suhtlevad raamatukoguga IPC kaudu. Moodulitel ei ole otsest juurdep\u00e4\u00e4su seadmele ja nad suhtlevad riistvaraga vahe-API kaudu, mille kaudu saadetavad p\u00e4ringud kontrollitakse, filtreeritakse ja piiratakse ainult nende funktsioonide juurde, mis on vajalikud kaamera juhtimiseks. <\/p>\n
Raamatukogu pakub juurdep\u00e4\u00e4su algoritmidele piltide ja videote t\u00f6\u00f6tlemiseks ja kvaliteedi parandamiseks (valge tasakaalu reguleerimine, m\u00fcra eemaldamine, video stabiliseerimine, automaatne teravustamine, eksponeerimise valik jne), mis v\u00f5ivad olla \u00fchendatud avatud v\u00e4listes raamatukogudes v\u00f5i valmistaja isolatsioonimoodulitena. API v\u00f5imaldab selliseid funktsioone nagu olemasolevate v\u00e4listest ja sisseehitatud kaameratest funktsionaalsuse m\u00e4\u00e4ramine, seadmete profiilide kasutamine, kaamerate \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 ja lahti\u00fchendamise s\u00fcndmuste t\u00f6\u00f6tlemine, andmete salvestamise haldamine kaameratest individuaalsete kaadritena ja piltide s\u00fcnkroonimine v\u00e4lklambiga t\u00f6\u00f6ga. Samuti on v\u00f5imalik s\u00fcsteemis t\u00f6\u00f6tada mitme kaameraga eraldi ja korraldada \u00fche kaameraga samal ajal mitme video voogude salvestamist (n\u00e4iteks \u00fcks madala eraldusv\u00f5imega videokonverentsiks ja teine k\u00f5rge eraldusv\u00f5imega arhiivsalvestamiseks kettale). \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-news"],"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\udd47Esimene libcamera versioon, kaamerate toe komponent Linuxis | ProHoster","description":"P\u00e4rast nelja aasta arendust on s\u00fcndinud esimene libcamera projekti versioon (0.0.1), mis pakub tarkvara raamistikku t\u00f6\u00f6tamiseks videokaamerate, fotokaamerate ja TV-tuuneritega Linuxis, Androidis ja ChromeOS-is, mida arendatakse edasi.","canonical_url":"https:\/\/prohoster.info\/et\/blog\/news\/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.","og:url":"https:\/\/prohoster.info\/et\/blog\/news\/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}]}}
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Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"