{"id":84054,"date":"2020-06-05T01:42:10","date_gmt":"2020-06-04T23:42:10","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-pakete-s-firefox-dlya-fedora-poyavilas-podderzhka-uskoreniya-dekodirovaniya-video-cherez-va-api"},"modified":"2020-06-05T01:42:10","modified_gmt":"2020-06-04T23:42:10","slug":"v-pakete-s-firefox-dlya-fedora-poyavilas-podderzhka-uskoreniya-dekodirovaniya-video-cherez-va-api","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/v-pakete-s-firefox-dlya-fedora-poyavilas-podderzhka-uskoreniya-dekodirovaniya-video-cherez-va-api","title":{"rendered":"Firefoxi paketis Fedora on lisatud toetus videode dekodeerimise kiirendamiseks VA-API kaudu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Firefoxi pakettide hooldaja Fedora Linuxile et<\/a><\/noindex> teatas valmisolekust kasutada Fedora-s videode dekodeerimise riistvaralist kiirendust Firefoxis VA-API abil. Kiirendus t\u00f6\u00f6tab hetkel ainult Waylandi baasil olevates keskkondades. VA-API toetus Chromiumis viidi ellu on rakendatud<\/a><\/noindex> Fedoras eelmisel aastal.<\/p>\n

Videode dekodeerimise riistvaraline kiirendus Firefoxis sai v\u00f5imalikuks t\u00e4nu uuele taustajale<\/a><\/noindex> Waylandi jaoks, mis kasutab DMABUF mehhanismi tekstuuride renderdamiseks ja nende tekstuuride kaudu erinevate protsesside vaheliste vahemike jagamiseks. Fedora 32 ja Fedora 31 v\u00e4rskes Firefox 77 paketis on uus taustajal vaikimisi aktiveeritud GNOME Waylandi sessioonis, kuid videode dekodeerimise riistvaralise kiirenduse aktiveerimiseks on lisaks vajalik ffmpeg, libva ja libva-utils paketid paigaldada RPM Fusion<\/a><\/noindex>, mis on kokku pandud VA-API toega.<\/p>\n

Intel-i graafikakaartidega s\u00fcsteemides t\u00f6\u00f6tab kiirus ainult libva-intel-driver draiveriga (libva-intel-hybrid-driver draiver ei toetata<\/a><\/noindex>). GPU AMD kiirused t\u00f6\u00f6tab, kui on olemas standardne teek radeonsi_drv_video.so, mis kuulub mesa-dri-drivers paketti. NVIDIA videokaartide jaoks tugi ei ole veel realiseeritud. VA-API juhtiva toetuse hindamiseks v\u00f5ib kasutada utiliiti vainfo. Kui tugi on kinnitatud, siis Firefoxi kiirenduse lubamiseks tuleb lehelt «about:config» muuta muutujad «gfx.webrender.enabled» ja «widget.wayland-dmabuf-vaapi.enabled» v\u00e4\u00e4rtusele true. P\u00e4rast brauseri taask\u00e4ivitamist tuleb kontrollida WebRender'i ja uue taustaprogrammi (Wayland\/drm) aktiveerimist lehelt «about:support».<\/p>\n

\"Firefoxi<\/a><\/noindex><\/center>
\n
\"Firefoxi<\/a><\/noindex><\/center><\/p>\n

P\u00e4rast seda tuleb veenduda, et VA-API rakendatakse videote vaatamise ajal (v\u00f5ivad esineda \u00fchilduvusprobleemid koodekite, videote m\u00f5\u00f5tmete ja teekidega), selleks saab lubada silumisre\u017eiimi, k\u00e4ivitades Firefoxi keskkonnamuutujaga MOZ_LOG ja kontrollida v\u00e4ljundis rida «VA-API FFmpeg init successful» ja
\n«Got one VAAPI frame output».<\/p>\n

MOZ_LOG=»PlatformDecoderModule:5″ MOZ_ENABLE_WAYLAND=1 firefox<\/p>\n

Youtube'i vaatamise kiirus s\u00f5ltub video kodeerimise viisist (H.264, AV1 jne). Formaat on v\u00f5imalik vaadata kontekstimen\u00fc\u00fcs, kui kl\u00f5psate parema hiirekl\u00f5psuga, jaotises «Stats for nerds». Toetatud s\u00fcsteemi riistvaradekoodimise jaoks sobiva formaadi valimiseks saab kasutada lisandmoodulit. enhanced-h264ify<\/a><\/noindex>.<\/p>\n

\"Firefoxi<\/a><\/noindex><\/center><\/p>\n

Eraldi m\u00e4rgitakse, et Firefox 77.0 pakettides Fedora jaoks on kaasatud t\u00e4iendavad plaastrid, mis m\u00f5jutavad j\u00f5udlust ja stabiilsust, mida ei ole Mozilla poolt pakutavates Firefox 77.0 standardsetes kogumites. Nende plaastrite lisamine p\u00f5hikoosseisu on oodata alles Firefox 78.0-s (kasutajad saavad kasutada Firefox 78 beetaversiooni v\u00f5i Mozilla \u00f6iseid kokkuv\u00f5tteid, k\u00e4ivitades brauseri k\u00e4suga «MOZ_ENABLE_WAYLAND=1 .\/firefox»). Lisaks kasutatakse Mozilla pakettides VP8\/VP9 dekodeerimiseks sisseehitatud teeki libvpx, mis ei toeta VA-API \u2014 kui on vajalik VP8\/VP9 dekodeerimise kiirus, tuleb libvpx keelata, seades «media.ffvpx.enabled» v\u00e4\u00e4rtusele «false» (Fedora reposte jooksul on libvpx juba keelatud).<\/p>\n

<\/a><\/noindex><\/p>\n

Allikas: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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