[mythtv-users] Curious fast forward problem

Hika van den Hoven hikavdh at gmail.com
Wed Jan 6 16:57:43 UTC 2021

Hoi mythtv,

Wednesday, January 6, 2021, 5:49:59 PM, you wrote:

> 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?
> _______________________________________________

I rarely use live tv, but as far as I know, there is no commercial
detection with live tv. Unless you watch a live tv recording later
after you run commercial detection on it.

Tot mails,
  Hika                            mailto:hikavdh at gmail.com

"Zonder hoop kun je niet leven
Zonder leven is er geen hoop
Het eeuwige dilemma
Zeker als je hoop moet vernietigen om te kunnen overleven!"

De lerende Mens

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