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#Plex media player color range full
The 8 images below show all the possible combinations of Full or Limited video levels in the chain from Plex -> GPU -> TV.
#Plex media player color range Pc
When attempting to play limited TV video content on a PC that uses Full video levels (such is an HTPC), we can get undesirable results if we set our video levels incorrectly – such as complete loss of shadow detail (aka crushed blacks) or conversely really washed out colors. Anything from level 16 and below is treated as pure black (often called blacker-than-black) and anything from 235 - 255 is treated as pure white (often called whiter-than-white.) In contrast, PC’s generate video content using the Full 0-255 range where pure black is level 0 and pure white is level 255. TV video content is completely contained within the range 16 - 235 and we call this limited range. Video levels are 8bit values and thus range from values 0 - 255. Now that we have a preliminary understanding of color spaces, lets talk about video levels. The actual math to convert from the Y’CbCr to RGB color space is beyond the scope of this tutorial as it involves a matrix transformation who’s coefficients are defined by standards such as BT.709 for HDTV. When each of these three sub-pixels are driven to various intensities, our brain combines them to visualize a single unique color – this is called an additive color system. If you were to magnify the pixels of your TV you would see that each pixel is actually made up of three smaller sub-pixels: Red, Green and Blue. This means that color information (the Cb & Cr components) can be compressed at a much higher rate compared to the brightness information (the Y’ component) with little to no loss in perceived picture quality with a significant reduction in storage space and bandwidth.Īlthough Y’CbCr is great for encoding color information for storage and transmission, it cannot be used to display that information for that we need to convert to another color space called RGB. As it turns out, our eyes are much more sensitive to changes in the brightness of an image (a fully de-saturated Black & White image) than they are to changes to the color of an image. Video content made for consumption on a television are encoded in the Y’CbCr color space. After reading this tutorial you should not only have a good understanding of what video level settings are best for your application but more importantly the why behind it.
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This tutorial aims to demystify what actually happens when you change video level settings. Setting proper video levels in your video chain from Plex -> GPU -> TV is paramount to getting the best possible picture quality but the hows and whys are often a mystery. #Updated – Hardware decoding now usable for PMP >= 1.0.3 #Updated – New Video pass-through option for PMP >= 1.1.3