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MediaPortal 1
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Installation, configuration support
Channel scan finds un-encrypted channels but preview says NoSignalDetected
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<blockquote data-quote="mm1352000" data-source="post: 1049774" data-attributes="member: 82144"><p>Hello again T^2</p><p></p><p>The info in your posts helped a lot, so <strong>thank you</strong>. I can't tell you how much I appreciate the info and especially your attitude. Indeed, I also derive a lot of satisfaction from investigating and resolving issues like this. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite24" alt="(y)" title="Thumbs Up (y)" loading="lazy" data-shortname="(y)" /></p><p></p><p>Armed with your info, I've spent the last 3 hours or so matching up the channels in the various lineups. I've come to the following conclusion:</p><ol> <li data-xf-list-type="ol">TV Server has access to the info that N-PVR is using and could probably be configured to do things in the same way with a few tweaks.</li> <li data-xf-list-type="ol">The channel name and number information that TV Server finds on channel 10 is correct and complete apart from two key points:<ul> <li data-xf-list-type="ul">Comcast is not broadcasting information for what I think are HD channels on channel 10<br /> </li> <li data-xf-list-type="ul">in some cases Comcast is flagging channels as encrypted when they really aren't</li> </ul></li> </ol><p>I'll come back to these points, but let me first try to more directly address your comments.</p><p></p><p></p><p>Understood. I can confirm that the channels you mentioned were picked up when channel 26 was scanned. However, in most cases equivalent channels were picked up when channel 10 was scanned.</p><p></p><p>Attached are two files.</p><p></p><p>"matched channels.txt" includes the channels that you want in your lineup (ie. channels-QAM.xml) that TV Server found info for from channel 10. Example:</p><p></p><p>First line is the "mapping_name" from channels-QAM.xml.</p><p>Second line is the channel info you could expect to have received if you'd done an "exhastive scan" of all channels.</p><p>Third line is the channel info you could expect to have received if you'd only scanned channel 10.</p><p></p><p>"unmatched channels.txt" includes the channels that you want in your lineup (ie. channels-QAM.xml) that TV Server did <strong>not</strong> find info for from channel 10. Example:</p><p></p><p>First line is the "mapping_name" from channels-QAM.xml.</p><p>Second line is the channel info you could expect to have received if you'd done an "exhastive scan" of all channels.</p><p></p><p>From a quick look at those files I hope you can see TV Server picked up equivalent info for Bounce, WETA UK, KIDS and TV26 at channel 10. Yes, those equivalents had different names and yes they were marked as encrypted... but they're exactly the same channels. They actually have the channel numbers that you used in channels-QAM.xml (where the channels found later do not) so I would have thought they were easier to find/identify (refer to the "Channel number" column in the "TV Channels" section of TV Server configuration).</p><p></p><p>As mentioned above, TV Server found equivalent info from channel 10 for most (specifically: 20 out of 30) of the channels that you care about. The other 10 channels seem to be your HD channels. I guess Comcast is not supplying info for HD channels on channel 10. To me this seems annoying and awkward, because it forces you to do a full/exhaustive scan (slower) to pick up all your channels... and you may miss out on the channel numbers which are available from channel 10.</p><p></p><p></p><p>This file was really helpful because it allowed me to see that TV Server has access to the same information as N-PVR. It should be a matter of time before we can give equivalent or better results.</p><p></p><p></p><p>It looks like we have been more ambitious about trying to get more useful channel names and numbers. From my perspective it seems like it would be better to use the channel 10 information - faster scan, better information - if only it were complete and correct. The challenge seems to be collect all available information, reject the incorrect stuff, and merge what remains... all without missing or "broken" channels. This is not easy.</p><p></p><p></p><p>Okay, interesting. I think we can match this with a few code and configuration changes.</p><p></p><p></p><p>Yep, I think you're right.</p><p></p><p></p><p>Thanks. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>mm</p></blockquote><p></p>
[QUOTE="mm1352000, post: 1049774, member: 82144"] Hello again T^2 The info in your posts helped a lot, so [B]thank you[/B]. I can't tell you how much I appreciate the info and especially your attitude. Indeed, I also derive a lot of satisfaction from investigating and resolving issues like this. (y) Armed with your info, I've spent the last 3 hours or so matching up the channels in the various lineups. I've come to the following conclusion: [LIST=1] [*]TV Server has access to the info that N-PVR is using and could probably be configured to do things in the same way with a few tweaks. [*]The channel name and number information that TV Server finds on channel 10 is correct and complete apart from two key points: [LIST] [*]Comcast is not broadcasting information for what I think are HD channels on channel 10 [*]in some cases Comcast is flagging channels as encrypted when they really aren't [/LIST] [/LIST] I'll come back to these points, but let me first try to more directly address your comments. Understood. I can confirm that the channels you mentioned were picked up when channel 26 was scanned. However, in most cases equivalent channels were picked up when channel 10 was scanned. Attached are two files. "matched channels.txt" includes the channels that you want in your lineup (ie. channels-QAM.xml) that TV Server found info for from channel 10. Example: First line is the "mapping_name" from channels-QAM.xml. Second line is the channel info you could expect to have received if you'd done an "exhastive scan" of all channels. Third line is the channel info you could expect to have received if you'd only scanned channel 10. "unmatched channels.txt" includes the channels that you want in your lineup (ie. channels-QAM.xml) that TV Server did [B]not[/B] find info for from channel 10. Example: First line is the "mapping_name" from channels-QAM.xml. Second line is the channel info you could expect to have received if you'd done an "exhastive scan" of all channels. From a quick look at those files I hope you can see TV Server picked up equivalent info for Bounce, WETA UK, KIDS and TV26 at channel 10. Yes, those equivalents had different names and yes they were marked as encrypted... but they're exactly the same channels. They actually have the channel numbers that you used in channels-QAM.xml (where the channels found later do not) so I would have thought they were easier to find/identify (refer to the "Channel number" column in the "TV Channels" section of TV Server configuration). As mentioned above, TV Server found equivalent info from channel 10 for most (specifically: 20 out of 30) of the channels that you care about. The other 10 channels seem to be your HD channels. I guess Comcast is not supplying info for HD channels on channel 10. To me this seems annoying and awkward, because it forces you to do a full/exhaustive scan (slower) to pick up all your channels... and you may miss out on the channel numbers which are available from channel 10. This file was really helpful because it allowed me to see that TV Server has access to the same information as N-PVR. It should be a matter of time before we can give equivalent or better results. It looks like we have been more ambitious about trying to get more useful channel names and numbers. From my perspective it seems like it would be better to use the channel 10 information - faster scan, better information - if only it were complete and correct. The challenge seems to be collect all available information, reject the incorrect stuff, and merge what remains... all without missing or "broken" channels. This is not easy. Okay, interesting. I think we can match this with a few code and configuration changes. Yep, I think you're right. Thanks. :) mm [/QUOTE]
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Channel scan finds un-encrypted channels but preview says NoSignalDetected
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