{"id":104586,"date":"2022-07-03T15:36:48","date_gmt":"2022-07-03T13:36:50","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dostupen-sound-open-firmware-2-2-nabor-otkrytyh-proshivok-k-dsp-chipam"},"modified":"2022-07-03T15:36:48","modified_gmt":"2022-07-03T13:36:50","slug":"dostupen-sound-open-firmware-2-2-nabor-otkrytyh-proshivok-k-dsp-chipam","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/dostupen-sound-open-firmware-2-2-nabor-otkrytyh-proshivok-k-dsp-chipam","title":{"rendered":"Saadaval on Sound Open Firmware 2.2, avatud mikroskeemide komplekt DSP-dele.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Avaldatud on Sound Open Firmware 2.2 (SOF) projekt, mille algselt l\u00f5i Intel, et liiguda eemale suletud tarkvara pakkumisest helit\u00f6\u00f6tluse DSP-kiipidele. Hiljem viidi projekt Linux Foundation'i haldusesse ning seda arendatakse n\u00fc\u00fcd koost\u00f6\u00f6s kogukonnaga koos ettev\u00f5tete AMD, Google ja NXP osalusel. Projekti raames arendatakse SDK-d, et lihtsustada p\u00fcsivara arendamist, Linuxi tuuma helidraiverit ning erinevatele DSP-kiipidele valmis p\u00fcsivara kogumeid, millele luuakse ka digitaalallkirjaga kinnitatud binaarsed kogumid. P\u00fcsivara kood on kirjutatud C keeles koos assembleri sisestustega ja levitatakse BSD litsentsi alusel.      <\/p>\n<p>Sound Open Firmware'i moodulaarse struktuuri t\u00f5ttu saab portida erinevatele DSP arhitektuuridele ja riistvaraplatvormidele. N\u00e4iteks toetavad toetatud platvormid erinevaid Intel'i kiipe (Broadwell, Icelake, Tigerlake, Alderlake jne), Mediatek (mt8195), NXP (i.MX8*) ja AMD (Renoir), varustatud Xtensa HiFi 2, 3 ja 4 arhitektuuride p\u00f5hjal tehtud DSP-dega. Arendamise k\u00e4igus v\u00f5ib kasutada spetsiaalset emulaatorit v\u00f5i QEMU-d. Avatud DSP firmware'i kasutamine v\u00f5imaldab kiiremini parandada ja diagnoosida probleemide tekkimist firmware'is ning annab kasutajatele v\u00f5imaluse kohandada firmware'e vastavalt oma vajadustele, teha spetsiifilisi optimeerimisi ja luua kergekaalulisi firmware variante, mis sisaldavad ainult toote jaoks vajalikke funktsioone.     <\/p>\n<p>Projekt pakub raamistikku heliga seotud lahenduste arendamiseks, optimeerimiseks ja testimiseks ning draiverite ja tarkvara loomiseks DSP-dega suhtlemiseks. Komplekti kuuluvad p\u00fcsivara teostused, p\u00fcsivara testimisriistade komplekt, utiliidid ELF-failide p\u00fcsivara installimiseks sobivateks kujunditeks, t\u00f5rkeotsinguvahendid, DSP emulaator, QEMU p\u00f5hine hostplatvormi emulaator, p\u00fcsivara j\u00e4lgimisriistad, MATLAB\/Octave skriptid helikomponentide koefitsientide peenh\u00e4\u00e4lestamiseks, rakendused p\u00fcsivara vahetuse ja andmete korraldamiseks ning valmis helit\u00f6\u00f6tluse topoloogiate n\u00e4ited.    <\/p>\n<p><center><img decoding=\"async\" alt=\"Saadaval on Sound Open Firmware 2.2, avatud mikroskeemide komplekt DSP-dele. \" src=\"\/wp-content\/uploads\/2022\/07\/e204f3a5462192346760685e09a14eda.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>  <center><img decoding=\"async\" alt=\"Saadaval on Sound Open Firmware 2.2, avatud mikroskeemide komplekt DSP-dele. \" src=\"\/wp-content\/uploads\/2022\/07\/38de2513cf9ad01ca8dd40dcdd7517a1.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <\/p>\n<p>Projekti arendab ka universaalset draiverit, mis saab kasutada seadmete puhul, mis toetavad Sound Open Firmware'i p\u00f5hinevaid p\u00fcsivara. Draiver on juba lisatud Linuxi p\u00f5hikoodi alates versioonist 5.2 ja jagatakse kahepoolses litsentsis \u2014 BSD ja GPLv2. Draiver vastutab p\u00fcsivara laadimise eest DSP m\u00e4llu, helitopoloogiate laadimise eest DSP-sse, heliseadme t\u00f6\u00f6 korraldamise eest (vastutab rakenduste poolt DSP funktsioonidele ligi p\u00e4\u00e4semise eest) ja rakenduste ligip\u00e4\u00e4su pakkumise eest helidatavatele andmetele. Draiver pakub ka IPC mehhanismi host-s\u00fcsteemi ja DSP vaheliseks suhtlemiseks ning kihti DSP riistvaraliste v\u00f5imete k\u00e4sitlemiseks t\u00fc\u00fcpilise API kaudu. DSP, millel on Sound Open Firmware, n\u00e4eb rakenduste jaoks v\u00e4lja nagu tavaline ALSA seade, mille haldamiseks saab kasutada tavap\u00e4rast tarkvaraliidest.    <\/p>\n<p><center><img decoding=\"async\" alt=\"Saadaval on Sound Open Firmware 2.2, avatud mikroskeemide komplekt DSP-dele. \" src=\"\/wp-content\/uploads\/2022\/07\/8674a965492c9cf860baa37b6d17a277.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>      <\/p>\n<p>Olulised uuendused Sound Open Firmware 2.2-s:  <\/p>\n<ul>\n<li class=\"l\"> Komponent v\u00e4liste koodekites kasutatavate raamatukogude jaoks on \u00fcmber nimetatud codec_adapter'ist module_adapter'iks ning viidud koos vastavusse signaalide t\u00f6\u00f6tlemise moodulite API-ga, mis v\u00f5imaldab kasutada Windows'i t\u00f6\u00f6tlejate koodi ilma selle muutmiseta.\n<li class=\"l\"> Frag API on kuulutatud aegunuks, mille eemaldamine on v\u00f5imaldanud suurendada iga komponendi j\u00f5udlust ligikaudu 1 MCPS (miljon ts\u00fcklit sekundis).\n<li class=\"l\"> Lisatud API Frame, mis teostab proaktiivset blokeeringute m\u00f5\u00f5tmist SIMD-p\u00f5histe ja mitte-SIMD t\u00f6\u00f6tlejate jaoks. Optimeerimine on v\u00f5imaldanud suurendada j\u00f5udlust umbes 0,25 MCPS.\n<li class=\"l\"> Lisatud uus segamismodul HiFi4 toega, mis toetab helikanalite arvu v\u00e4hendamist v\u00f5i suurendamist voos.\n<li class=\"l\"> Zephyr RTOS-i keskkonna j\u00e4\u00e4dvustamiseks laiendatud v\u00f5imalusi XTOS-i asemel. Zephyr'i kasutamine lihtsustab ja v\u00e4hendab oluliselt Sound Open Firmware rakenduste koodi. Uues versioonis on lisatud Zephyr'i API-l p\u00f5hinev logimise ja viivituse toetus. J\u00e4rgmises v\u00e4ljalaskeohtus on oodata t\u00e4ielikku Zephyr'i sisseehitatud toetust.\n<li class=\"l\"> IPC4 protokolli laiendatud kasutatavus heli salvestamiseks ja esitamiseks Windowsi seadmetes (IPC4 toetus v\u00f5imaldab Windowsi kaudu suhelda Sound Open Firmware-i t\u00f6\u00f6tlejatega ilma spetsiifilise draiverita).             <\/ul>\n<p>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57446\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Sound Open Firmware 2.2 (SOF), \u0438\u0437\u043d\u0430\u0447\u0430\u043b\u044c\u043d\u043e \u0441\u043e\u0437\u0434\u0430\u043d\u043d\u043e\u0433\u043e \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0435\u0439 Intel \u0434\u043b\u044f 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-->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Sound Open Firmware 2.2, avatud tarkvaraseeria DSP-kiipidele, on n\u00fc\u00fcd saadaval | ProHoster","description":"Ilmus Sound Open Firmware 2.2 (SOF), mis loodi algselt ettev\u00f5tte Intel poolt, et loobuda suletud DSP-kiipide tarkvara tarnimise praktikast, mis on seotud heli t\u00f6\u00f6tlemisega. Hiljem viidi projekt Linux Foundation'i varju ja seda arendatakse n\u00fc\u00fcd koos kogukonna ja ettev\u00f5tete AMD, Google ja NXP osalusel. 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