Regarding Padding; What is It?

[schlabic]

I'd like to understand padding.

I've searched the forum but am having trouble with failed recordings when the system has to boot up from complete shutdown, and am trying to understand why.

I don't use Standby because I don't want my system to go to Standby because on Standby it uses 71 watts. I'm probably the only citizen of the united states that actually cares that that's 71 watts of coal spewing CO2 into the air about 22 hours a day that I don't watch TV, every day. Thus I shut it down, obviously.

But sometimes it works and sometimes I get failed recordings.

So I'm trying to understand padding.

Is the pre-padding intended to allow time for the system to boot up, or is it to simply compensate for clock offset, to ensure complete recording? My default has been one minute of pre-padding but it takes more than a minute to boot.

When I set GBPVR with one minute pre-padding does it start to boot one minute ahead of time and then start recording? And if, then, it takes more than a minute to boot does it "give up" and fail?

Regardless of whether my system booted up to record or not, what about if there are two recordings back-to-back, with non-zero post padding on the first and/or non-zero pre-padding on the second? What happens then?

A little more explanation of padding, for both the booting up (off Standby, Hibernation, or off of being completely shut down) would be helpful.

If this has been explained somewhere already, my apologies... perhaps my search eluded me.

Rgds,

-Rod

[sub]

I've searched the forum but am having trouble with failed recordings when the system has to boot up from complete shutdown, and am trying to understand why.

The would usually be related to buggy drivers for the capture device that dont correcytly handle waking up from hibernation or standby.

So I'm trying to understand padding.

Is the pre-padding intended to allow time for the system to boot up, or is it to simply compensate for clock offset, to ensure complete recording? My default has been one minute of pre-padding but it takes more than a minute to boot.

No, paddings purpose is not to allow your system to boot up or anything like that. Padding is just extra time it'll record if possible (in case shows are running late etc).

Padding is considered desirable, but not essential. For example, if you schedule a recording with a five minutes pre-padding, then it'll start the recording up to five minutes early if the tuner is not in use for something else.

When I set GBPVR with one minute pre-padding does it start to boot one minute ahead of time and then start recording?

To give the system a little extra time for booting, GB-PVR schedules wake ups for one minute before the pre-padding is due to kick in.

And if, then, it takes more than a minute to boot does it "give up" and fail?

No, it'll start as soon as it can. It wont give up until after that recording is due to finish.

Regardless of whether my system booted up to record or not, what about if there are two recordings back-to-back, with non-zero post padding on the first and/or non-zero pre-padding on the second? What happens then?

padding is considered optional. In this situatoin there would be no post-padding applied to the first recording and no pre-padding applied to the second recording (since the tuner would be in use).

[Flipper]

padding is considered optional. In this situatoin there would be no post-padding applied to the first recording and no pre-padding applied to the second recording (since the tuner would be in use).

Wow, that's awesome! I have a couple minutes padding set as default, but whenever I've scheduled back-to-back recordings I assumed I'd have to manually override to no padding, silly me.

It's these thoughtful little details that make gbpvr so great!

[schlabic]

The would usually be related to buggy drivers for the capture device that dont correcytly handle waking up from hibernation or standby.

Are you saying that it will only wakes up off of hibernation or standby, but not from a completely shut down state? I would have sworn that I have made some recordings that booted up from shutdown, but now I'm not sure. I suppose it's possible my kids left the system on instead of shutting it down.

I just set it to record a show a few minutes ago and shut it down. The start time passed, and my system has not booted up.

Next I'll see if it works from hibernation.

-Rod

[sub]

I'm pretty sure it'll only boot up if you're put the system into hibernation or standby. If you've shut down, then you'll get a failed recording.

[schlabic]

Sure enough; it seems to record fine when booting from hibernation. Thanks!

[4zm4r3d02]

Some computers have an option in the bios that will allow the computer to turn itself on at a pre-set time and date. On mine, I can set "RTC ALARM" as a wake-up event in the power management screen of my bios settings, and there is a place to set the time and date. In the "MONTH" and "DAY" fields I can enter zeroes, if I want it to turn-on every day at the set time.

I have it turn-on about 10 minutes before a scheduled recording, to give it time to boot and let everything settle down.