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MediaPortal 1
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Guide: Perfect playback & Display calibration
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<blockquote data-quote="kiwijunglist" data-source="post: 1150518" data-attributes="member: 76888"><p>'desktop colour' is 0-255 levels of grey.</p><p>video is 16-235 levels of grey and 0-16 is all the same colour (black) and 235-255 is all the same colour (white).</p><p></p><p>You are clipping (discarding) 0-16 and 235-255 within MePo. This doesn't matter for watching videos as this range is useless.</p><p></p><p>The reason you see 0-16 flash in VLC and not MePo is that whatever codec you are using in MePo (LAV) is expanding video to 0-255 and then your display is clipping 0-16/235-255 where as VLC is sending out a 16-235 (compression), hence there is no clipping.</p><p></p><p>You can either</p><p></p><p>1. leave things as is with lav set to 0-255 output. there is no video information in 0-16 anyway, set the brightness so that you can just barely see #18 flash.</p><p>2. change lav to always output 16-235. this will introduce the most banding. adjust brightness as per guide.</p><p>3. setup your display and pixel output to both use 0-255. leave lav as 0-255. adjust brightness as per guide.</p><p></p><p>#1 or #3 is the best</p></blockquote><p></p>
[QUOTE="kiwijunglist, post: 1150518, member: 76888"] 'desktop colour' is 0-255 levels of grey. video is 16-235 levels of grey and 0-16 is all the same colour (black) and 235-255 is all the same colour (white). You are clipping (discarding) 0-16 and 235-255 within MePo. This doesn't matter for watching videos as this range is useless. The reason you see 0-16 flash in VLC and not MePo is that whatever codec you are using in MePo (LAV) is expanding video to 0-255 and then your display is clipping 0-16/235-255 where as VLC is sending out a 16-235 (compression), hence there is no clipping. You can either 1. leave things as is with lav set to 0-255 output. there is no video information in 0-16 anyway, set the brightness so that you can just barely see #18 flash. 2. change lav to always output 16-235. this will introduce the most banding. adjust brightness as per guide. 3. setup your display and pixel output to both use 0-255. leave lav as 0-255. adjust brightness as per guide. #1 or #3 is the best [/QUOTE]
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Guide: Perfect playback & Display calibration
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