From b3f9341c4bb09797220ee27afb45b6d58ef7cede Mon Sep 17 00:00:00 2001 From: Joaquim Baeta Date: Sun, 14 Aug 2022 21:04:50 +0700 Subject: [PATCH] fix a minor typo --- configuration/4k-hdr.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/configuration/4k-hdr.md b/configuration/4k-hdr.md index fb97002..2530e31 100644 --- a/configuration/4k-hdr.md +++ b/configuration/4k-hdr.md @@ -14,7 +14,7 @@ The primary impact of the Kodi desktop resolution is GUI performance, or how Kod The second impact of the Kodi desktop resolution is how media is scaled. If "Adjust Refresh" is not enabled, Kodi will scale all media played up or down to the desktop resolution and refresh rate, which by default is 1080p @ 60 fps. Scaling SD and 720p media to 1080p while adding extra frames to match 60fps is handled well, as Kodi simply needs to duplicate frames to reach the higher fps rate, and the simple scaling algorithms which Kodi uses to reduce artefacts in the upscaled image move smaller amounts of data in/out of memory. Hardware as low-spec as the first generation Raspberry Pi can normally manage this well. -Scaling SD and 1080p media to 4K is a literally bigger challenge. Frame sizes for 4K media are 4x the size of 1080p so the amount of data being processed in/out of memory increases and the CPU resources needed also increase. Scaling 4K to 1080p is a larger challenge again. Source 4K media has huge frame sizes and sophisticated (down)scaling algorithms are required to greate a lossy image without massive visual artefacts. +Scaling SD and 1080p media to 4K is a literally bigger challenge. Frame sizes for 4K media are 4x the size of 1080p so the amount of data being processed in/out of memory increases and the CPU resources needed also increase. Scaling 4K to 1080p is a larger challenge again. Source 4K media has huge frame sizes and sophisticated (down)scaling algorithms are required to create a lossy image without massive visual artefacts. Higher-spec Intel CPU devices with recent Core i7 chips and SSD storage can normally run the Kodi GUI at 4K with 60fps refresh rates and scale media with reasonable quality, but older and lower-spec Intel CPU devices and anything running from a spinning HDD or removable USB/SD media will struggle with a 4K desktop, and ARM SoC devices simply fail as they don't have the memory bandwidth or CPU speeds to process the data volumes needed.