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MediaPortal 1
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WinTV-PVR-USB2 in PAL-M
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<blockquote data-quote="wesleyer" data-source="post: 88717" data-attributes="member: 24995"><p>Hi,</p><p></p><p>I keep trying to get this working on MediaPortal, and I have some additional info:</p><p></p><p>I have done a test with VirtualVCR (a DirectShow capture app). VirtualVCR does not work properly with this device (it can't capture video from it), but it allows me to edit the device video capture properties. In addition to the TV system, the interface also has a "Output enabled" flag. If I set it to unchecked in VirtualVCR, then enter Media Portal, the image "fuzziness" is fixed. However, if I exit Media Portal and then run it again, the "fuzziness" is back (and running VirtualVCR again shows me that the "Output enabled" checkbox is checked <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown :(" loading="lazy" data-shortname=":(" /> ). Looking at MediaPortal source code I couldn't find any place where this property might be set, so I'm guessing that maybe the device driver is setting this as default whenever MP starts the capture. (please bear with me here, since I'm not familiar with DirectShow, and neither with C#).</p><p></p><p>Anyway, the colors are still strange. My guess is that maybe this can be fixed by a hue adjustment, but I couldn't find a way to do it through Media Portal, and adjusting it in VirtualVCR does not give a good enough result.</p><p></p><p>I have downloaded that latest source code from svn, and I have successfully built MP, so if anyone has some source code change suggestion to fix this, I'll be more than happy to try.</p><p></p><p>Regards.</p><p></p><p>Wesley</p><p></p><p>PS: A correction from my previous post: if I leave the channel to default, it will use the color system I have last used...if it was PAL-M, than the behaviour is exactly the same I got setting the channel to PAL-M. </p><p></p><p>PPS: While going through MP code, I found what seems to be a problem in PAL-M handling: in the method SetTVFormat of the IVac class (Core/DShowNET/Helper/cards/ivac.cs) sets a VideoFormat member variable depending on the format, and uses this variable later to decide what video size to report. PAL-M should be treatead as NTSC in this context, and not as a regular PAL system, since its frame rate and size are the same as NTSC. Unfortunately changing this did not fix my problem.</p></blockquote><p></p>
[QUOTE="wesleyer, post: 88717, member: 24995"] Hi, I keep trying to get this working on MediaPortal, and I have some additional info: I have done a test with VirtualVCR (a DirectShow capture app). VirtualVCR does not work properly with this device (it can't capture video from it), but it allows me to edit the device video capture properties. In addition to the TV system, the interface also has a "Output enabled" flag. If I set it to unchecked in VirtualVCR, then enter Media Portal, the image "fuzziness" is fixed. However, if I exit Media Portal and then run it again, the "fuzziness" is back (and running VirtualVCR again shows me that the "Output enabled" checkbox is checked :( ). Looking at MediaPortal source code I couldn't find any place where this property might be set, so I'm guessing that maybe the device driver is setting this as default whenever MP starts the capture. (please bear with me here, since I'm not familiar with DirectShow, and neither with C#). Anyway, the colors are still strange. My guess is that maybe this can be fixed by a hue adjustment, but I couldn't find a way to do it through Media Portal, and adjusting it in VirtualVCR does not give a good enough result. I have downloaded that latest source code from svn, and I have successfully built MP, so if anyone has some source code change suggestion to fix this, I'll be more than happy to try. Regards. Wesley PS: A correction from my previous post: if I leave the channel to default, it will use the color system I have last used...if it was PAL-M, than the behaviour is exactly the same I got setting the channel to PAL-M. PPS: While going through MP code, I found what seems to be a problem in PAL-M handling: in the method SetTVFormat of the IVac class (Core/DShowNET/Helper/cards/ivac.cs) sets a VideoFormat member variable depending on the format, and uses this variable later to decide what video size to report. PAL-M should be treatead as NTSC in this context, and not as a regular PAL system, since its frame rate and size are the same as NTSC. Unfortunately changing this did not fix my problem. [/QUOTE]
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