[mythtv-users] Curious fast forward problem

mythtv mythtv at mdabbs.org
Wed Jan 6 16:49:59 UTC 2021

On 1/6/21 2:42 AM, Stephen Worthington wrote:
> On Tue, 5 Jan 2021 10:56:38 -0600, you wrote:
>> We've been experiencing this weird fast forward behaviour for several
>> versions now. I assume it must just be something we're doing wrong
>> because it's never changed since at least v0.28 and no one else seems to
>> be talking about it.
>> What happens is this: We have auto-skip commercials turned off. When
>> watching live tv, if we're delayed for more than a few minutes, then hit
>> fast-forward to manually skip thru some commercials, 9 out of 10 times,
>> we can skip  thru a few commercials but sometimes it will just jump
>> forward to almost live again (a few seconds behind live).  I hope I
>> explained that correctly.  Its not "consistent" but it happens
>> frequently enough to be a real nuisance, especially when our remote
>> doesn't have numbers allowing us to just jump back a certain number of
>> minutes. And also, the amount jumped is not a consistent amount of time,
>> it always just jumps to near live again.  I believe the backend is
>> marking commercial breaks, and maybe there is some weirdness in trying
>> to jump forward without a correct number of commercial breaks recorded,
>> or some other setting about the length of commercials, etc. I don't
>> quite understand all of those settings, and I don' think I've changed
>> any from the defaults, other than to disable commercial auto-skip.
> Are you talking about fast forward, or skip forward?  Fast forward is
> an unloved feature as very few people use it.  Skipping forwards works
> much better, but with Live TV there could still be problems when you
> are near the front where it is still recording.  I do not use Live TV
> for anything other than testing tuners, so I would not know.
> The one thing I have experienced that is similar to your symptoms is
> where I am not pointing my IR remote in the right direction and the IR
> receiver picks up a different button from the one I pushed.  I am
> getting that a bit with the new USB tuner on my laptop - its IR
> receiver window points in a different direction from the one on the
> old tuner, and it is often seeing a 10 minute skip forwards or back
> instead of just a 30 seconds skip unless I point the IR transmitter
> right at it.
> If you want to test if your problem is commercial skip related, just
> add an override rule on your next recording to tell it not to do
> commercial skip processing.
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Just so I'm speaking your language, fast forward is like playing the 
frames faster and skip forward jumps by a specified amount? We're using 
skip forward to jump 30 seconds ahead.

Since this is live-tv, where do I turn off commercial skip processing?

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