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MediaPortal 1
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Codecs, External Players
New NVide driver fixed black level problem on VMR9 for me
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<blockquote data-quote="oldyellow" data-source="post: 418953" data-attributes="member: 17727"><p>I used to thing the problem was with MediaPortal, but now I think it is that certain graphics drivers are not allowing VMR9/EVR renderers to use the proper white/black RGB color range (i.e. 0-255 vs 16-235). I would urge anyone experiencing this problem to perform the following test and report the results back to this thread.</p><p></p><p>1. Download and install <a href="http://blog.monogram.sk/janos/tools/monogram-graphstudio/" target="_blank">GraphStudio</a> (it is not very large)</p><p>2. Drag a .ts file recorded with MediaPortal onto the GraphStudio icon to have it render the .ts file.</p><p>3. Check which video renderer is being used (i.e. VMR - Video Renderer or VMR9 Video Renderer 9)</p><p>4. Play the file from GraphStudio by clicking the play control button. Note the picture quality (normal vs. washed-out)</p><p>5. Stop the playback by clicking X on the playback window or clicking the stop play control button.</p><p>6. Highlight the render box by clicking on it, then delete the box (the delete button or right-click -> delete)</p><p>7. Add the video renderer that was not used in step 3. You can use the Graph->Add Filter menu option. Make sure that the filter is either Video Render 9 (VMR9) or Video Render (VMR), which ever was NOT used before.</p><p>8. Connect the filter by clicking on the output pin of which ever decoder is being used and dragging the line to the input pin of the Video Render. Once you release the mouse the software should take over and make the connection.</p><p>9. Play the file again, noting the quality (normal vs. washed-out).</p><p></p><p>When I did this, the VMR renderer give a perfect picture, and both the VMR9 and the EVR render gave a washed out picture. I tried all of the suggestions but none of them worked (this makes sense for most of the suggestions because the renderer is the last filter in the line). I tried the NVidea registry hack that can be found on the web, and it also did not work. However, when I installed the newest version of NVidea drivers yesterday, it worked.</p><p></p><p>I don't think the problem is directly with MP (and I used to think that). However, since MP forces use of VMR9/EVR it affects MP users. I would be willing to bet money that when you are looking at those crystal-clear videos from your external player, that VMR9/EVR is NOT being used, hence the quality picture.</p></blockquote><p></p>
[QUOTE="oldyellow, post: 418953, member: 17727"] I used to thing the problem was with MediaPortal, but now I think it is that certain graphics drivers are not allowing VMR9/EVR renderers to use the proper white/black RGB color range (i.e. 0-255 vs 16-235). I would urge anyone experiencing this problem to perform the following test and report the results back to this thread. 1. Download and install [url=http://blog.monogram.sk/janos/tools/monogram-graphstudio/]GraphStudio[/url] (it is not very large) 2. Drag a .ts file recorded with MediaPortal onto the GraphStudio icon to have it render the .ts file. 3. Check which video renderer is being used (i.e. VMR - Video Renderer or VMR9 Video Renderer 9) 4. Play the file from GraphStudio by clicking the play control button. Note the picture quality (normal vs. washed-out) 5. Stop the playback by clicking X on the playback window or clicking the stop play control button. 6. Highlight the render box by clicking on it, then delete the box (the delete button or right-click -> delete) 7. Add the video renderer that was not used in step 3. You can use the Graph->Add Filter menu option. Make sure that the filter is either Video Render 9 (VMR9) or Video Render (VMR), which ever was NOT used before. 8. Connect the filter by clicking on the output pin of which ever decoder is being used and dragging the line to the input pin of the Video Render. Once you release the mouse the software should take over and make the connection. 9. Play the file again, noting the quality (normal vs. washed-out). When I did this, the VMR renderer give a perfect picture, and both the VMR9 and the EVR render gave a washed out picture. I tried all of the suggestions but none of them worked (this makes sense for most of the suggestions because the renderer is the last filter in the line). I tried the NVidea registry hack that can be found on the web, and it also did not work. However, when I installed the newest version of NVidea drivers yesterday, it worked. I don't think the problem is directly with MP (and I used to think that). However, since MP forces use of VMR9/EVR it affects MP users. I would be willing to bet money that when you are looking at those crystal-clear videos from your external player, that VMR9/EVR is NOT being used, hence the quality picture. [/QUOTE]
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New NVide driver fixed black level problem on VMR9 for me
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