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MediaPortal 1
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TV service (EPG grabbing while idle) prevents Windows Standby
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<blockquote data-quote="CyberSimian" data-source="post: 1286084" data-attributes="member: 141969"><p>To paraphrase Winston Churchill:</p><p></p><p style="margin-left: 20px"><em>TV Server is a riddle, wrapped in a mystery, inside an enigma.</em></p> <p style="margin-left: 20px"></p><p>This morning I did the following test of the EPG grabber:</p><ul> <li data-xf-list-type="ul">Disabled the timeshift grabber.</li> <li data-xf-list-type="ul">Enabled the idle grabber with a timeout of 60 minutes (long enough to grab the complete EPG carousel).</li> <li data-xf-list-type="ul">Selected <strong>two</strong> TV grabber channels <strong>in the same MUX</strong> (BBC1 and BBC2).</li> <li data-xf-list-type="ul">Deselected all radio grabber channels.</li> </ul><p>Here are the screen shots of the settings:</p><p></p><p>[ATTACH]209232[/ATTACH] [ATTACH]209233[/ATTACH]</p><p></p><p>I then watched "Manual Control" to verify that TV Server was indeed grabbing the EPG. Grabbing started with the "BBC1" channel. From the logs, grabbing and database-update took 43 minutes. Then grabbing started for the "BBC2" channel, even though "BBC2" is in the same MUX as "BBC1". Grabbing and database-update took a further 40 minutes (see logs). Curiously, TV Server chose a different tuner for the "BBC2" grab:</p><p></p><p>[ATTACH]209234[/ATTACH] [ATTACH]209235[/ATTACH]</p><p></p><p>I have attached the full logs below (with PowerScheduler lines removed), but here is a summary:</p><p></p><p>[code][09:15:05,131] [EPG] [DVB EPG timer] [INFO ] - Grab for card:#7 transponder #1/1 channel: BBC1</p><p>[09:15:05,724] [EPG] [DVB EPG timer] [INFO ] - EpgCard: card: 7 starting to grab DVBT:tv: BBC ONE South Freq:498000 ONID:9018 TSID:4163 SID:4163 PMT:0x64 FTA:True LCN:1 BandWidth:8</p><p>[09:37:41,303] [EPG] [5 ] [INFO ] - Epg: card:7 received epg for 200 channels</p><p>[09:37:41,319] [EPG] [EPG Update thread] [INFO ] - Epg: card:7 Updating database with new programs</p><p>[09:58:21,849] [EPG] [EPG Update thread] [INFO ] - Epg: card:7 Finished updating the database.</p><p>[09:58:21,911] [Log] [EPG Update thread] [INFO ] - EPG: database updated for #0 BBC1</p><p>[09:58:21,911] [EPG] [EPG Update thread] [INFO ] - EpgCard: card: 7 stop grabbing</p><p></p><p>[09:58:36,404] [EPG] [DVB EPG timer] [INFO ] - Grab for card:#8 transponder #1/1 channel: BBC2</p><p>[09:58:38,042] [EPG] [DVB EPG timer] [INFO ] - EpgCard: card: 8 starting to grab DVBT:tv: BBC TWO Freq:498000 ONID:9018 TSID:4163 SID:4287 PMT:0xC8 FTA:True LCN:2 BandWidth:8</p><p>[10:16:04,171] [EPG] [4 ] [INFO ] - Epg: card:8 received epg for 200 channels</p><p>[10:16:04,171] [EPG] [EPG Update thread] [INFO ] - Epg: card:8 Updating database with new programs</p><p>[10:38:40,375] [EPG] [EPG Update thread] [INFO ] - Epg: card:8 Finished updating the database.</p><p>[10:38:40,438] [Log] [EPG Update thread] [INFO ] - EPG: database updated for #1 BBC2</p><p>[10:38:40,438] [EPG] [EPG Update thread] [INFO ] - EpgCard: card: 8 stop grabbing[/code]</p><p></p><p>What this shows is that TV Server grabs from every grabber channel selected, even if those channels reside in a MUX that has already been grabbed (as in this case). Offhand, I cannot think of any functional reason why TV Server should do this. However, there may be grabber scenarios that mean TV Server is forced to work in this way. Regardless, the recommendation is clear:</p><p></p><p style="margin-left: 20px"><em>Grab from the minimum number of channels that will provide a full EPG.</em></p> <p style="margin-left: 20px"></p><p>For DVB-T in the UK, this means grabbing from a single channel.</p><p>For DVB-C in Germany, it means grabbing from one channel in each MUX.</p><p></p><p>-- from CyberSimian in the UK</p></blockquote><p></p>
[QUOTE="CyberSimian, post: 1286084, member: 141969"] To paraphrase Winston Churchill: [INDENT][i]TV Server is a riddle, wrapped in a mystery, inside an enigma.[/i][/INDENT] [INDENT][/INDENT] This morning I did the following test of the EPG grabber: [LIST] [*]Disabled the timeshift grabber. [*]Enabled the idle grabber with a timeout of 60 minutes (long enough to grab the complete EPG carousel). [*]Selected [b]two[/b] TV grabber channels [b]in the same MUX[/b] (BBC1 and BBC2). [*]Deselected all radio grabber channels. [/LIST] Here are the screen shots of the settings: [ATTACH]209232[/ATTACH] [ATTACH]209233[/ATTACH] I then watched "Manual Control" to verify that TV Server was indeed grabbing the EPG. Grabbing started with the "BBC1" channel. From the logs, grabbing and database-update took 43 minutes. Then grabbing started for the "BBC2" channel, even though "BBC2" is in the same MUX as "BBC1". Grabbing and database-update took a further 40 minutes (see logs). Curiously, TV Server chose a different tuner for the "BBC2" grab: [ATTACH]209234[/ATTACH] [ATTACH]209235[/ATTACH] I have attached the full logs below (with PowerScheduler lines removed), but here is a summary: [code][09:15:05,131] [EPG] [DVB EPG timer] [INFO ] - Grab for card:#7 transponder #1/1 channel: BBC1 [09:15:05,724] [EPG] [DVB EPG timer] [INFO ] - EpgCard: card: 7 starting to grab DVBT:tv: BBC ONE South Freq:498000 ONID:9018 TSID:4163 SID:4163 PMT:0x64 FTA:True LCN:1 BandWidth:8 [09:37:41,303] [EPG] [5 ] [INFO ] - Epg: card:7 received epg for 200 channels [09:37:41,319] [EPG] [EPG Update thread] [INFO ] - Epg: card:7 Updating database with new programs [09:58:21,849] [EPG] [EPG Update thread] [INFO ] - Epg: card:7 Finished updating the database. [09:58:21,911] [Log] [EPG Update thread] [INFO ] - EPG: database updated for #0 BBC1 [09:58:21,911] [EPG] [EPG Update thread] [INFO ] - EpgCard: card: 7 stop grabbing [09:58:36,404] [EPG] [DVB EPG timer] [INFO ] - Grab for card:#8 transponder #1/1 channel: BBC2 [09:58:38,042] [EPG] [DVB EPG timer] [INFO ] - EpgCard: card: 8 starting to grab DVBT:tv: BBC TWO Freq:498000 ONID:9018 TSID:4163 SID:4287 PMT:0xC8 FTA:True LCN:2 BandWidth:8 [10:16:04,171] [EPG] [4 ] [INFO ] - Epg: card:8 received epg for 200 channels [10:16:04,171] [EPG] [EPG Update thread] [INFO ] - Epg: card:8 Updating database with new programs [10:38:40,375] [EPG] [EPG Update thread] [INFO ] - Epg: card:8 Finished updating the database. [10:38:40,438] [Log] [EPG Update thread] [INFO ] - EPG: database updated for #1 BBC2 [10:38:40,438] [EPG] [EPG Update thread] [INFO ] - EpgCard: card: 8 stop grabbing[/code] What this shows is that TV Server grabs from every grabber channel selected, even if those channels reside in a MUX that has already been grabbed (as in this case). Offhand, I cannot think of any functional reason why TV Server should do this. However, there may be grabber scenarios that mean TV Server is forced to work in this way. Regardless, the recommendation is clear: [INDENT][I]Grab from the minimum number of channels that will provide a full EPG.[/I][/INDENT] [INDENT][/INDENT] For DVB-T in the UK, this means grabbing from a single channel. For DVB-C in Germany, it means grabbing from one channel in each MUX. -- from CyberSimian in the UK [/QUOTE]
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