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MediaPortal 1
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Codecs, External Players
Grey blacks with internal player + EVR
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<blockquote data-quote="tourettes" data-source="post: 484956" data-attributes="member: 10858"><p>Has anyone rised this issue to ATI / MS direction? There isn't that much we can do to solve this on MP side. Only hack would be to implement pixel shader support (just like MPC-HC has) and use it to change the color curves. Or does someone know how the EVR mixer component can be instructed to use the correct colorspace on 4:4:4 case for the video texture mixing?</p><p></p><p>As issue happens with Sagetv, MediaPortal, MPC-HC (and most likely anything else that uses custom renderer and/or DirectX) ATI (are you guys sure that it is not happening with Nvidia and 4:4:4 color space? I would assume it is, but cannot test as I use only full RGB and tv has no support for the other color space) I would assume that ATI / MS (and Nvidia?) are keen to try to figure out what causes the issue. And as there is already a hack / woraround for ATI & MCE they already know what is wrong...</p><p></p><p>To get this sorted out, please try to contact ATI etc. It might be our only hope. Or calibrate your display </p><p></p><p>MP has following rendering pipeline when EVR is used.</p><p></p><p>Video codec -> EVR mixing component -> MP EVR presenter -> DirectX </p><p></p><p>I'm not sure if there are some additional components between the two last ones (or how they are actually interacting). </p><p></p><ul> <li data-xf-list-type="ul"> MP EVR presenter is only passing the texture forward (it doesn't do anything to the decoded picture) </li> <li data-xf-list-type="ul"> DirectX works always in full RGB color space (I guess this is the place where things start to go wrong)</li> </ul></blockquote><p></p>
[QUOTE="tourettes, post: 484956, member: 10858"] Has anyone rised this issue to ATI / MS direction? There isn't that much we can do to solve this on MP side. Only hack would be to implement pixel shader support (just like MPC-HC has) and use it to change the color curves. Or does someone know how the EVR mixer component can be instructed to use the correct colorspace on 4:4:4 case for the video texture mixing? As issue happens with Sagetv, MediaPortal, MPC-HC (and most likely anything else that uses custom renderer and/or DirectX) ATI (are you guys sure that it is not happening with Nvidia and 4:4:4 color space? I would assume it is, but cannot test as I use only full RGB and tv has no support for the other color space) I would assume that ATI / MS (and Nvidia?) are keen to try to figure out what causes the issue. And as there is already a hack / woraround for ATI & MCE they already know what is wrong... To get this sorted out, please try to contact ATI etc. It might be our only hope. Or calibrate your display MP has following rendering pipeline when EVR is used. Video codec -> EVR mixing component -> MP EVR presenter -> DirectX I'm not sure if there are some additional components between the two last ones (or how they are actually interacting). [list] [*] MP EVR presenter is only passing the texture forward (it doesn't do anything to the decoded picture) [*] DirectX works always in full RGB color space (I guess this is the place where things start to go wrong) [/list] [/QUOTE]
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MediaPortal 1
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