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<blockquote data-quote="aspik" data-source="post: 1117399" data-attributes="member: 72523">I had time to do a bit more test and research. I've checked out the latest MP1 branch and found the LockInOnSignal method in the TvLibrary:[code]///&lt;summary&gt;&nbsp; &nbsp; /// Checks if the tuner is locked in and a sginal is present&nbsp; &nbsp; ///&lt;/summary&gt;&nbsp;&nbsp; &nbsp; &nbsp; public override void LockInOnSignal()&nbsp; &nbsp; {&nbsp; &nbsp;&nbsp; // UpdateSignalQuality(true);&nbsp; &nbsp; &nbsp; bool isLocked = false;&nbsp; &nbsp;&nbsp; &nbsp; &nbsp; &nbsp; DateTime timeStart = DateTime.Now;&nbsp; &nbsp; &nbsp; TimeSpan ts = timeStart - timeStart;&nbsp; &nbsp; &nbsp; while (!isLocked &amp;&amp; ts.TotalSeconds &lt; _parameters.TimeOutTune)&nbsp; &nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; foreach (IBDA_SignalStatistics stat in _tunerStatistics)&nbsp; &nbsp; &nbsp; &nbsp; {[/code]At the beginning of the method is a calling of UpdateSignalQuality, but it is commented. I thought maybe it would help, if before the channel get tuned, it can firstly check the signal quality... For a test I uncommented the method calling (plus the log writings in the UpdateSignalQuality method) and compiled the TvLibrary. Next I replaced the original TvLibrary.dll with my own compiled. Unfortunately this didn't helped, but the log includes now additionally entry’s:[code][2014-12-30 23:59:11,654] [Log&nbsp; &nbsp; ] [21&nbsp; &nbsp; &nbsp;&nbsp; ] [INFO ] - dvb:UpdateSignalQuality[2014-12-30 23:59:11,654] [Log&nbsp; &nbsp; ] [21&nbsp; &nbsp; &nbsp;&nbsp; ] [INFO ] - dvb:UpdateSignalQuality() count:2[2014-12-30 23:59:11,654] [Log&nbsp; &nbsp; ] [21&nbsp; &nbsp; &nbsp;&nbsp; ] [INFO ] -&nbsp; &nbsp; dvb:&nbsp; #0 get locked[2014-12-30 23:59:11,654] [Log&nbsp; &nbsp; ] [21&nbsp; &nbsp; &nbsp;&nbsp; ] [INFO ] -&nbsp; &nbsp; dvb:&nbsp; #0 isTunerLocked:False[2014-12-30 23:59:11,654] [Log&nbsp; &nbsp; ] [21&nbsp; &nbsp; &nbsp;&nbsp; ] [INFO ] -&nbsp; &nbsp; dvb:&nbsp; #0 get signalquality[2014-12-30 23:59:11,654] [Log&nbsp; &nbsp; ] [21&nbsp; &nbsp; &nbsp;&nbsp; ] [INFO ] -&nbsp; &nbsp; dvb:&nbsp; #0 signalQuality:100[2014-12-30 23:59:11,654] [Log&nbsp; &nbsp; ] [21&nbsp; &nbsp; &nbsp;&nbsp; ] [INFO ] -&nbsp; &nbsp; dvb:&nbsp; #0 signalStrength:65[2014-12-30 23:59:11,654] [Log&nbsp; &nbsp; ] [21&nbsp; &nbsp; &nbsp;&nbsp; ] [INFO ] -&nbsp; &nbsp; dvb:&nbsp; #1 get locked[2014-12-30 23:59:11,654] [Log&nbsp; &nbsp; ] [21&nbsp; &nbsp; &nbsp;&nbsp; ] [INFO ] -&nbsp; &nbsp; dvb:&nbsp; #1 isTunerLocked:False[2014-12-30 23:59:11,654] [Log&nbsp; &nbsp; ] [21&nbsp; &nbsp; &nbsp;&nbsp; ] [INFO ] -&nbsp; &nbsp; dvb:&nbsp; #1 get signalquality[2014-12-30 23:59:11,654] [Log&nbsp; &nbsp; ] [21&nbsp; &nbsp; &nbsp;&nbsp; ] [INFO ] -&nbsp; &nbsp; dvb:&nbsp; #1 signalQuality:100[2014-12-30 23:59:11,654] [Log&nbsp; &nbsp; ] [21&nbsp; &nbsp; &nbsp;&nbsp; ] [INFO ] -&nbsp; &nbsp; dvb:&nbsp; #1 signalStrength:65[2014-12-30 23:59:11,654] [Log&nbsp; &nbsp; ] [21&nbsp; &nbsp; &nbsp;&nbsp; ] [INFO ] - dvb:&nbsp; LockInOnSignal waiting 20ms[2014-12-30 23:59:11,674] [Log&nbsp; &nbsp; ] [21&nbsp; &nbsp; &nbsp;&nbsp; ] [INFO ] - dvb:&nbsp; LockInOnSignal waiting 20ms[2014-12-30 23:59:11,694] [Log&nbsp; &nbsp; ] [21&nbsp; &nbsp; &nbsp;&nbsp; ] [INFO ] - dvb:&nbsp; LockInOnSignal waiting 20ms[2014-12-30 23:59:11,714] [Log&nbsp; &nbsp; ] [21&nbsp; &nbsp; &nbsp;&nbsp; ] [INFO ] - dvb:&nbsp; LockInOnSignal waiting 20ms[2014-12-30 23:59:11,734] [Log&nbsp; &nbsp; ] [21&nbsp; &nbsp; &nbsp;&nbsp; ] [INFO ] - dvb:&nbsp; LockInOnSignal waiting 20ms[2014-12-30 23:59:13,674] [Log&nbsp; &nbsp; ] [21&nbsp; &nbsp; &nbsp;&nbsp; ] [INFO ] - dvb:&nbsp; LockInOnSignal could not lock onto channel - no signal or bad signal[/code]The result is the same, the tuner can't lock onto the channel... Maybe you can read more from those log entry's? Additionally I've found that the BDA signal statistics property set:<a href="http://msdn.microsoft.com/en-us/library/windows/hardware/ff566557%28v=vs.85%29.aspx" target="_blank">http://msdn.microsoft.com/en-us/library/windows/hardware/ff566557(v=vs.85).aspx</a>includes a property KSPROPERTY_BDA_SIGNAL_LOCK_TYPE in which are 4 lock types described:<a href="http://msdn.microsoft.com/en-us/library/windows/hardware/ff556526%28v=vs.85%29.aspx" target="_blank">http://msdn.microsoft.com/en-us/library/windows/hardware/ff556526(v=vs.85).aspx</a>In the currently implementation of TvLibrary those lock types are not implemented:[code]public interface IBDA_SignalStatistics&nbsp; {&nbsp; &nbsp; [PreserveSig]&nbsp; &nbsp; int put_SignalStrength([In] int lDbStrength);&nbsp; &nbsp; [PreserveSig]&nbsp; &nbsp; int get_SignalStrength([Out] out int plDbStrength);&nbsp; &nbsp; [PreserveSig]&nbsp; &nbsp; int put_SignalQuality([In] int lPercentQuality);&nbsp; &nbsp; [PreserveSig]&nbsp; &nbsp; int get_SignalQuality([Out] out int plPercentQuality);&nbsp; &nbsp; [PreserveSig]&nbsp; &nbsp; int put_SignalPresent([In, MarshalAs(UnmanagedType.U1)] bool fPresent);&nbsp; &nbsp; [PreserveSig]&nbsp; &nbsp; int get_SignalPresent([Out, MarshalAs(UnmanagedType.U1)] out bool pfPresent);&nbsp; &nbsp; [PreserveSig]&nbsp; &nbsp; int put_SignalLocked([In, MarshalAs(UnmanagedType.U1)] bool fLocked);&nbsp; &nbsp; [PreserveSig]&nbsp; &nbsp; int get_SignalLocked([Out, MarshalAs(UnmanagedType.U1)] out bool pfLocked);&nbsp; &nbsp; [PreserveSig]&nbsp; &nbsp; int put_SampleTime([In] int lmsSampleTime);&nbsp; &nbsp; [PreserveSig]&nbsp; &nbsp; int get_SampleTime([Out] out int plmsSampleTime);[/code]Would it be helpful, if the lock types would be implemented and in case the tuner can't tune onto a channel it could check in which lock type the tuner is? Or I'm completely on a wrong path...?</blockquote>

[QUOTE="aspik, post: 1117399, member: 72523"] I had time to do a bit more test and research. I've checked out the latest MP1 branch and found the [I]LockInOnSignal [/I]method in the TvLibrary: [code]///<summary> /// Checks if the tuner is locked in and a sginal is present ///</summary> public override void LockInOnSignal() { // UpdateSignalQuality(true); bool isLocked = false; DateTime timeStart = DateTime.Now; TimeSpan ts = timeStart - timeStart; while (!isLocked && ts.TotalSeconds < _parameters.TimeOutTune) { foreach (IBDA_SignalStatistics stat in _tunerStatistics) {[/code] At the beginning of the method is a calling of [I]UpdateSignalQuality[/I], but it is commented. I thought maybe it would help, if before the channel get tuned, it can firstly check the signal quality... For a test I uncommented the method calling (plus the log writings in the [I]UpdateSignalQuality [/I]method) and compiled the TvLibrary. Next I replaced the original TvLibrary.dll with my own compiled. Unfortunately this didn't helped, but the log includes now additionally entry’s: [code][2014-12-30 23:59:11,654] [Log ] [21 ] [INFO ] - dvb:UpdateSignalQuality [2014-12-30 23:59:11,654] [Log ] [21 ] [INFO ] - dvb:UpdateSignalQuality() count:2 [2014-12-30 23:59:11,654] [Log ] [21 ] [INFO ] - dvb: #0 get locked [2014-12-30 23:59:11,654] [Log ] [21 ] [INFO ] - dvb: #0 isTunerLocked:False [2014-12-30 23:59:11,654] [Log ] [21 ] [INFO ] - dvb: #0 get signalquality [2014-12-30 23:59:11,654] [Log ] [21 ] [INFO ] - dvb: #0 signalQuality:100 [2014-12-30 23:59:11,654] [Log ] [21 ] [INFO ] - dvb: #0 signalStrength:65 [2014-12-30 23:59:11,654] [Log ] [21 ] [INFO ] - dvb: #1 get locked [2014-12-30 23:59:11,654] [Log ] [21 ] [INFO ] - dvb: #1 isTunerLocked:False [2014-12-30 23:59:11,654] [Log ] [21 ] [INFO ] - dvb: #1 get signalquality [2014-12-30 23:59:11,654] [Log ] [21 ] [INFO ] - dvb: #1 signalQuality:100 [2014-12-30 23:59:11,654] [Log ] [21 ] [INFO ] - dvb: #1 signalStrength:65 [2014-12-30 23:59:11,654] [Log ] [21 ] [INFO ] - dvb: LockInOnSignal waiting 20ms [2014-12-30 23:59:11,674] [Log ] [21 ] [INFO ] - dvb: LockInOnSignal waiting 20ms [2014-12-30 23:59:11,694] [Log ] [21 ] [INFO ] - dvb: LockInOnSignal waiting 20ms [2014-12-30 23:59:11,714] [Log ] [21 ] [INFO ] - dvb: LockInOnSignal waiting 20ms [2014-12-30 23:59:11,734] [Log ] [21 ] [INFO ] - dvb: LockInOnSignal waiting 20ms [2014-12-30 23:59:13,674] [Log ] [21 ] [INFO ] - dvb: LockInOnSignal could not lock onto channel - no signal or bad signal[/code] The result is the same, the tuner can't lock onto the channel... Maybe you can read more from those log entry's? Additionally I've found that the BDA signal statistics property set: [url]http://msdn.microsoft.com/en-us/library/windows/hardware/ff566557%28v=vs.85%29.aspx[/url] includes a property KSPROPERTY_BDA_SIGNAL_LOCK_TYPE in which are 4 lock types described: [url]http://msdn.microsoft.com/en-us/library/windows/hardware/ff556526%28v=vs.85%29.aspx[/url] In the currently implementation of TvLibrary those lock types are not implemented: [code]public interface IBDA_SignalStatistics { [PreserveSig] int put_SignalStrength([In] int lDbStrength); [PreserveSig] int get_SignalStrength([Out] out int plDbStrength); [PreserveSig] int put_SignalQuality([In] int lPercentQuality); [PreserveSig] int get_SignalQuality([Out] out int plPercentQuality); [PreserveSig] int put_SignalPresent([In, MarshalAs(UnmanagedType.U1)] bool fPresent); [PreserveSig] int get_SignalPresent([Out, MarshalAs(UnmanagedType.U1)] out bool pfPresent); [PreserveSig] int put_SignalLocked([In, MarshalAs(UnmanagedType.U1)] bool fLocked); [PreserveSig] int get_SignalLocked([Out, MarshalAs(UnmanagedType.U1)] out bool pfLocked); [PreserveSig] int put_SampleTime([In] int lmsSampleTime); [PreserveSig] int get_SampleTime([Out] out int plmsSampleTime);[/code] Would it be helpful, if the lock types would be implemented and in case the tuner can't tune onto a channel it could check in which lock type the tuner is? Or I'm completely on a wrong path...? [/QUOTE]

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