{"id":86636,"date":"2020-06-27T19:42:48","date_gmt":"2020-06-27T17:42:48","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-chrome-predlozhen-novyj-interfejs-pdf-prosmotrshhika-i-dobavlena-podderzhka-avif"},"modified":"2020-06-27T19:42:48","modified_gmt":"2020-06-27T17:42:48","slug":"v-chrome-predlozhen-novyj-interfejs-pdf-prosmotrshhika-i-dobavlena-podderzhka-avif","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/v-chrome-predlozhen-novyj-interfejs-pdf-prosmotrshhika-i-dobavlena-podderzhka-avif","title":{"rendered":"A Chrome \u00faj PDF-olvas\u00f3 fel\u00fcletet javasolt, az AVIF t\u00e1mogat\u00e1s\u00e1t is hozz\u00e1adt\u00e1k","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A Chrome r\u00e9sze bekapcsolva<\/a><\/noindex> az \u00faj megval\u00f3s\u00edt\u00e1s a be\u00e9p\u00edtett PDF-dokumentum-olvas\u00f3 fel\u00fclet\u00e9hez. A fel\u00fclet jellemz\u0151je, hogy minden be\u00e1ll\u00edt\u00e1st a fels\u0151 panelra helyeztek \u00e1t. M\u00edg kor\u00e1bban a fels\u0151 panelen csak a f\u00e1jln\u00e9v, az oldalinform\u00e1ci\u00f3k, valamint a forgat\u00e1s, nyomtat\u00e1s \u00e9s ment\u00e9s gombjai voltak l\u00e1that\u00f3k, most m\u00e1r a tartalmat, amely a m\u00e9rethez igaz\u00edt\u00f3 \u00e9s nagy\u00edt\u00f3 elemeket tartalmazta, is \u00e1tvitt\u00e9k az oldals\u00e1vb\u00f3l. Hozz\u00e1adva<\/a><\/noindex> a szerkesztett PDF-form\u00e1tumok ment\u00e9s\u00e9nek lehet\u0151s\u00e9ge, valamint \u00fczemm\u00f3d<\/a><\/noindex> a k\u00e9toldalas n\u00e9zet.<\/p>\n

Az \u00faj lehet\u0151s\u00e9gek aktiv\u00e1l\u00e1s\u00e1hoz a k\u00f6vetkez\u0151 z\u00e1szl\u00f3kat aj\u00e1nljuk: «chrome:\/\/flags#pdf-viewer-update», «chrome:\/\/flags\/#pdf-form-save» \u00e9s «chrome:\/\/flags\/#pdf-two-up-view».<\/p>\n

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A Chrome-ban megeml\u00edthet\u0151 v\u00e1ltoz\u00e1sok k\u00f6z\u00e9 tartozik a<\/a><\/noindex> alap\u00e9rtelmezett t\u00e1mogat\u00e1s bekapcsol\u00e1sa a k\u00e9pk\u00e9pform\u00e1tumokhoz AVIF<\/a><\/noindex> (AV1 k\u00e9pform\u00e1tum), amely a videok\u00f3dol\u00e1si AV1 form\u00e1tum bels\u0151 t\u00f6m\u00f6r\u00edt\u00e9si technol\u00f3gi\u00e1it haszn\u00e1lja. Az AVIF t\u00f6m\u00f6r\u00edtett adatok terjeszt\u00e9s\u00e9nek kont\u00e9nere teljesen anal\u00f3g a HEIF-fel. Az AVIF t\u00e1mogatja mind a HDR (magas dinamikatartom\u00e1ny) \u00e9s sz\u00e9les sz\u00ednspektrum\u00fa k\u00e9peket, mind a standard dinamikatartom\u00e1nyt (SDR). A Firefoxban az AVIF k\u00eds\u00e9rleti t\u00e1mogat\u00e1s\u00e1t a Firefox 77-es kiad\u00e1s\u00e1ban adt\u00e1k hozz\u00e1 (az image.avif.enabled enged\u00e9lyez\u00e9se az about:config men\u00fcpontban).<\/p>\n

Kor\u00e1bban a Chrome-ban el\u0151rehaladt a k\u00e9pk\u00e9pform\u00e1tum WebP<\/a><\/noindex>, amely r\u00e9v\u00e9n az \u00faj protokoll s\u00e1vsz\u00e9less\u00e9ge n\u00e9gyszer magasabb, mint az OpenVPN-\u00e9: 1011 Mbit\/s a 258 Mbit\/s-hoz k\u00e9pest. De itt meg kell jegyezni, hogy a Kernel Crypto API-ra val\u00f3 \u00e1tt\u00e9r\u00e9s rontja a teljes\u00edtm\u00e9nyt.<\/a><\/noindex> a Google lehet\u0151v\u00e9 teszi a k\u00e9pf\u00e1jlok m\u00e9ret\u00e9nek 25%-34%-kal t\u00f6rt\u00e9n\u0151 cs\u00f6kkent\u00e9s\u00e9t a JPEG form\u00e1tum min\u0151s\u00e9g\u00e9nek meg\u0151rz\u00e9se mellett. Az alternat\u00edv tesztek kimutatj\u00e1k<\/a><\/noindex>, hogy a WebP nem olyan hat\u00e9kony, mint szeretn\u00e9nk — ha nem a JPEG Group cjpeg referencia k\u00f3dol\u00f3j\u00e1hoz viszony\u00edtunk, hanem egy hat\u00e9konyabb k\u00f3dol\u00f3t haszn\u00e1lunk. MozJPEG<\/a><\/noindex>, akkor a WebP el\u0151nye csak alacsony felbont\u00e1s eset\u00e9n (500px) \u00e9rz\u00e9kelhet\u0151, amely a weben a leggyakrabban haszn\u00e1lt. 1000px felbont\u00e1sn\u00e1l az eredm\u00e9ny majdnem azonos, m\u00edg 1500px felbont\u00e1sn\u00e1l a WebP m\u00e9g elmarad a MozJPEG-t\u0151l. Az AVIF ugyanazokon a teszteken \u00e9szrevehet\u0151en megel\u0151zi a MozJPEG-t, a cjpeg-t \u00e9s a WebP-t, ez\u00e9rt a b\u00f6ng\u00e9sz\u0151k gy\u00e1rt\u00f3i \u00edg\u00e9retesebb form\u00e1tumk\u00e9nt tekintettek r\u00e1.<\/p>\n

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Forr\u00e1s: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u0441\u043e\u0441\u0442\u0430\u0432 Chrome \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0430 \u043d\u043e\u0432\u0430\u044f \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0430 \u0432\u0441\u0442\u0440\u043e\u0435\u043d\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0441\u043c\u043e\u0442\u0440\u0449\u0438\u043a\u0430 \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u043e\u0432 \u0432 \u0444\u043e\u0440\u043c\u0430\u0442\u0435 PDF. \u0418\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441 \u043f\u0440\u0438\u043c\u0435\u0447\u0430\u0442\u0435\u043b\u0435\u043d \u0432\u044b\u043d\u043e\u0441\u043e\u043c \u0432 \u0432\u0435\u0440\u0445\u043d\u044e\u044e \u043f\u0430\u043d\u0435\u043b\u044c \u0432\u0441\u0435\u0445 \u043d\u0430\u0441\u0442\u0440\u043e\u0435\u043a. \u0415\u0441\u043b\u0438 \u0440\u0430\u043d\u044c\u0448\u0435 \u0432 \u0432\u0435\u0440\u0445\u043d\u0435\u0439 \u043f\u0430\u043d\u0435\u043b\u0438 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