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Thread: Some quesrtions dealing with padding, hibernate, wake up and so on.

  1. #1
    Join Date
    Dec 2004
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    Question Some quesrtions dealing with padding, hibernate, wake up and so on.

    Hi there,
    Im currently planning to install the most recent version of GBPVR.
    Im using one tuner card (PVR350) on Win2k SP4.

    Now I read several threads here and want to ask for some assistance.

    1) Padding ignored if back-to-back
    Is it right that if I program 2 recordings and the second one starts at the end time of the first the padding is ignored ?
    I.e. pre padding 2 minutes,post padding 3 minutes, recording A on channel 1 from 1:00 to 2:00, recording B on channel 2 from 2:00 to 3:00.
    The I assume that rec A on channel 1 starts at 0:58, ends on 2:00, rec B on channel 2 starts an 2:00 and ends 3:03.
    Is that right ?

    2) Change of default padding
    Is it possible to define a "default" padding and change it manually if I program a recording and the default value is not okay for that recording (i.e. I must expect that the show might be longer than given in the EPG) ?

    3) Go into hibernate, wake up and programmed recordings.
    I plan to send the PVR into hibernate after e.g. 20 minutes of inactivity.
    I have a pre-padding of 2 minutes and a post-padding of 3 minutes.
    So 20 minutes after a recording the PVR goes into hibernate.
    What happens if a recording shall start right in that moment.
    I.e. a recording ends at 1:00 (programmed value excluding padding) and the next regording will start at 1:25 (excl. padding). Then the PC will go into hibrernate at 1:23 (1:00 end + 3 minutes post-padding + 20 minutes inactivity), but at that time the next recording should start.
    How does GBPVR handle this ?

    Regards
    Sven

  2. #2
    Join Date
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    NextPVR HQ, Wellington, New Zealand
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    1) Padding ignored if back-to-back
    Is it right that if I program 2 recordings and the second one starts at the end time of the first the padding is ignored ?
    I.e. pre padding 2 minutes,post padding 3 minutes, recording A on channel 1 from 1:00 to 2:00, recording B on channel 2 from 2:00 to 3:00.
    The I assume that rec A on channel 1 starts at 0:58, ends on 2:00, rec B on channel 2 starts an 2:00 and ends 3:03.
    Is that right ?
    That is correct.

    2) Change of default padding
    Is it possible to define a "default" padding and change it manually if I program a recording and the default value is not okay for that recording (i.e. I must expect that the show might be longer than given in the EPG) ?
    Yes. You set the default padding in the config app's 'capture source' page. You can override the default padding when you make a recording.

    3) Go into hibernate, wake up and programmed recordings.
    I plan to send the PVR into hibernate after e.g. 20 minutes of inactivity.
    I have a pre-padding of 2 minutes and a post-padding of 3 minutes.
    So 20 minutes after a recording the PVR goes into hibernate.
    What happens if a recording shall start right in that moment.
    I.e. a recording ends at 1:00 (programmed value excluding padding) and the next regording will start at 1:25 (excl. padding). Then the PC will go into hibrernate at 1:23 (1:00 end + 3 minutes post-padding + 20 minutes inactivity), but at that time the next recording should start.
    How does GBPVR handle this ?
    Hard to say exactly. Depending on exact timing, it'll probably hibernate then wake up. I'm not in control of when the machine goes to sleep. I am in control of when it wakes up.

  3. #3
    Join Date
    Dec 2004
    Posts
    25
    Hi Sub,
    thanks for the fast reply.

    You wrote
    Hard to say exactly. Depending on exact timing, it'll probably hibernate then wake up. I'm not in control of when the machine goes to sleep. I am in control of when it wakes up.
    The only important thing is the following :
    If the PC goes into hibernate at 1:00 and this needs 1 minute, it "reaches" hibernate at 1:01.
    If I programmed a recording that would wake up the PC at 1:00 is the PC waken up even if the wake up time is over (for one minute in the above example) ?

    Are there any plans to prevent the PC from hibernate if a recording will take place in the near future ?
    Maybe it would be possible to do the follwing :
    - Check when the next recording will take place.
    - Check when the PC will enter hibernate (take the time either out of the system or by a setting in the config).
    - If the next recording is only 5 minutes or so (maybe also a parameter) within the "go into hibernate" time, do something to prevent hibernate....

    Maybe this would prevent us from problems with going into hibernate right before a recording takes place....

    Maybe this is an issue for a plugin ?

    Another thing :
    Is it possible to get the time of the next recording out of GBPVR ?

    Sven

  4. #4
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    Are there any plans to prevent the PC from hibernate if a recording will take place in the near future ?
    I've done it this way for the last 18 months, and I have no plans to change it. The current scheme seems adaquate.

    Is it possible to get the time of the next recording out of GBPVR ?
    You can either manually look on the recording screen's pending list, or if want to do it programmatically, then you can look in the database.
    Last edited by sub; 2005-07-06 at 08:19 PM.

  5. #5
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    OK, I've changed my mind.

    I've add something that will stop the machine from hibernating if the next recording is due to start within the next five minutes.

  6. #6
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    Dec 2004
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    Great !

    Thanks sub for that superb support.

    So in one of the next releases this will be changed ?

    Sven

  7. #7
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    I've already made the change, so it'll be in the next release.

  8. #8
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    I must repeat :

    Great job and thanks for all.

    Regards
    Sven

  9. #9
    Join Date
    Dec 2004
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    25
    Hi sub,
    one additional thing.

    My wife (I must admit shes very talented in technical things) brought up an issue.

    If I schedule a recording at 1:00 the recording will start at 0:58 (pre padding 2 minutes).

    So if the PVR is in hibernate, when will the PVR be waken ?
    Exactly at 0:58 and start then immediately with the recording or is there a preparing time of some minutes ?

    I ask because after wake-up I must restart the PVR350m, and this needs time.
    So it would be great if the wake-up takes place some time before the start of the recording.
    Maybe also 5 minutes (or a configurable time).

    Would this be possible ?

    This would guarantee that also recordings that start after a wake-up have the correct pre-padding compared to those that are started while the PVR is running.

    Sorry for all my change wishes.


    Regards
    Sven

  10. #10
    Join Date
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    It would wake at 0:58. The next release schedules the wakeup for one minute earlier. Before you ask, no I wont be making this configurable.

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