[mythtv-users] Damaged Recordings
Klaas de Waal
klaas.de.waal at gmail.com
Mon Dec 6 21:16:40 UTC 2021
On Mon, 6 Dec 2021 at 20:32, Thor <mythtv at x-defense.de> wrote:
> Hi,
> I noticed that recently all my HD recordings (from onboard DVB-C card)
> appear "damaged".
> The video itself seems fine, but they are tagged "Damaged" on mythweb,
> and show with yellow font on my kodi frontends.
> I am not sure where to start the "debugging". any hints appreciated.
> this is from a test recording today :
> "
> 2021-12-06 12:02:00.784906 I TVRec[1]:
> FinishedRecording(30001_2021-12-06T10:56:00Z) damaged recq:
>
> <RecordingQuality overall_score="0.35"
> key="30001_2021-12-06T10:56:00Z" continuity_error_count="0"
> packet_count="2920809">
>
> <Gap start="2021-12-06T10:56:00Z" end="2021-12-06T10:56:26Z"
> duration="26" />
>
> </RecordingQuality>
>
> 2021-12-06 12:02:00.792595 I Updating status for "1 (Das Erste HD)"
> on cardid [1] (Recording => Recorder Failed)
>
>
> "
>
> Your recording does not miss any packet from the transport stream, as
shown by the continuity_error_count value of 0. This means your recording
is perfect.
However, the "Gap start" is the time the recording has started later than
was planned. This is 26 seconds in your recording and that is what causes
the recording to be marked as failed.
This is the time it took for the tuner to get in lock. Usually the tuner
locks in one or a few seconds so this is not really good.
I do not know why it takes so long for your tuner to get in lock although I
have seen it before.
There is a small chance that a channel scan might improve this, so that is
something you can do.
If your recordings always take this long to get started but are otherwise
OK you can also adjust the time value that is used to decide if a recording
has failed.
This is a configuration item in mythfrontend: Setup / Video / General /
General (Advanced) / Maximum Start Gap (secs). The default value is 15
seconds but this can easily be changed to 30 or 60 seconds.
Klaas.
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