<div dir="ltr"><div dir="ltr"><br><br><div class="gmail_quote"><div dir="ltr">On Sat, Oct 13, 2018 at 7:35 AM Allen Edwards <<a href="mailto:allen.p.edwards@gmail.com">allen.p.edwards@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr"><div dir="ltr"><br><br><div class="gmail_quote"><div dir="ltr">On Sat, Oct 13, 2018 at 2:31 AM Stephen Worthington <<a href="mailto:stephen_agent@jsw.gen.nz" target="_blank">stephen_agent@jsw.gen.nz</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On Fri, 12 Oct 2018 09:12:27 -0700, you wrote:<br>
<br>
<br>
>After my wife was done watching, I ran this command "mythbackend<br>
>--setverbose record" and started looking at the log while recording some<br>
>random show.<br>
><br>
>What I see is a lot of messages like this<br>
>Oct 12 09:09:19 NewMyth mythbackend: mythbackend[867]: W HDHRStreamHandler<br>
>recorders/dtvrecorder.cpp:1573 (ProcessAVTSPacket) DTVRec[1]: A/V PID 0x51<br>
>discontinuity detected ((6+1)%16!=14) 0.00%<br>
><br>
>None of the score = 0 type and I have not watched the show to see if there<br>
>are issues. Are the messages that say "discontinuity detected" significant?<br>
<br>
Unfortunately, those discontinuity messages do not seem to be<br>
necessarily significant. I do get them when the recording is OK - I<br>
think they can happen when ad breaks get inserted and the video stream<br>
is disrupted by that. But I only seem to get them from my DVB-S<br>
tuners via minisatip, so I have not ruled out a bug in minisatip from<br>
being the cause. If there are lots of them, that is likely to<br>
indicate a problem, but an occasional burst of just one or two at a<br>
time (like I get) does not seem to indicate a real problem. As best I<br>
can determine, the ones I get when the recording does have a problem<br>
will have a final calculated % value that is non-zero. The ones that<br>
I get that do not correspond to a bad recording all seem to have a<br>
final calculated value of 0.0 % or a very small number (< 0.00001 %).<br>
_______________________________________________<br></blockquote><div><br></div><div>I see lots of the the discontinuity detected messages but looking at the time stamps, they are in groups of one or two.</div><div>Taking yesterday as a test day, I saw glitches in programs on both HDHomerun units, on different channels, one UHF and one VHF, and I saw no overall_score="0". That said, I erased the show from the second HDHomerun so I can't prove it actually recorded on that unit so I need to repeat that.</div><div><br></div><div>I will not rule out a signal strength problem but I would be very surprised if the VHF channel had a problem. The UHF channel is typically more difficult to get. I would also not expect interference to hit both channels.</div><div><br></div><div>The only thing I can think to do now, other than repeating the HDHomerun experiment, is to watch a show live on the TV and then watch the recorded version. Anyone have other ideas?</div><div><br></div><div>Allen</div></div></div></div></div></blockquote><div><br></div><div>I should have added that the "discontinuity detected" messages are coming at an average rate of 11 per minute. Might be scene changes in the source as this is a news show and they change scenes at about that rate.</div><div><br></div><div>Allen</div></div></div></div>