Adam is on vacation, so this might take a while.
But what you are talking about Rubén is not the same issue Andreas is
adressing, I guess. You found something where we might had typo and I
can tell that the Kangaroo patch worked with this minor bug as well.
Andreas problem is more general:
When I'm recording the vga and I change the resolution of the vga signal
WITHOUT reconnecting the vga plug my image gets scrumbled.
If I plug and unplug my vga-cable the recording is okay again!
Matterhorn already scales the VGA-signal if it notices the resolution
change. But unfortunatly there is not event/signal to catch for a
resolution change if you change the resolution without reconnecting the
cable. Waldemar spend quite some time on this with very serious
debugging and the resolution that he can't fix this.
Rüdiger
Am 12.07.2012 14:20, schrieb Rubén Pérez:
I couldn't test the code myself, but I asked Adam Mckenzie, who kindly
took a look and saw no issues with resolution whatsoever. Maybe I
didn't totally understand him, but as far as I know, the patch worked.
To get a little more in detail, the code that was already in place
defined some "caps" to be applied to the output of the kangaroo patch.
Those caps are set at the beginning and never change along the
recording. To "protect" those caps from change, they are accessed via
a method called "getCaps", so that the correct values are always
returned. At one point of the code, the "caps" variable was used
instead of using "getCaps", so I guess that could be the source of the
problem.
As far as I know, with that little change, Adam couldn't reproduce the
bug, but I invite him to answer and clarify it.
Best regards
Rubén
2012/7/12 Ruediger Rolf <[email protected]
<mailto:[email protected]>>
From what we know in Osnabrück it can not work. But maybe Ruben
was much mor successful than we were.
Am 12.07.2012 12:22, schrieb Andreas Krieger:
Then I must have misunderstood Ruben's mail.
To me it said that there was a one-line patch:
Rubén Pérez wrote on Fri, 22 Jun 2012
I was assigned the ticket to fix the problems with the
resolution changes,
but it turns out that the code was already in place (I think it is
Waldemar's work). There was a bug (a one-liner) that I think was
causing
the problems. However I couldn't test it myself since we have no
official
capture agents in Vigo anymore, so Adam Mckenzie kindly tested
the patch
in their agents. In his experience, it seems that the agent
deals well resolution changes, and the resulting media is OK.
Regards, Andreas
Ruediger Rolf schrieb am Thu, 12 Jul 2012 betreff "Re:
[Opencast...":
Andreas,
As I pointed out several times already: there is no fix to this
problem. And if you want to get this fixed you have to turn to
epiphan or gstreamer, as this is not a Matterhorn related
problem. It is somewhere within the epiphan driver or gstreamer
modules that the signal about a resolution change gets lost.
Rüdiger
Am 12.07.2012 11:42, schrieb Andreas Krieger:
Hi,
http://opencast.jira.com/browse/MH-8655
This fix did'nt make it into 1.3.1 it seems :)
What can I do to implement the fix locally?
Regards, Andreas
Rubén Pérez schrieb am Fri, 22 Jun 2012 betreff "[Opencast
Matterhorn]...":
Date: Fri, 22 Jun 2012 12:34:15 +0200
From: Rubén Pérez <[email protected]>
<mailto:[email protected]>
Reply-To: Opencast Matterhorn <[email protected]>
<mailto:[email protected]>
To: Opencast Matterhorn <[email protected]>
<mailto:[email protected]>
Subject: [Opencast Matterhorn] Patch to support resolution
changes not in
1.3.1?
Hi all,
This comes from this message:
http://opencast.3480289.n2.nabble.com/Matterhorn-users-Release-1-3-1-when-to-come-tp7580482p7580503.html
*Rüdiger said:*
There will be no fixes for the epiphan device regarding
resolution changes
in 1.3.1 that are not in 1.3.0 already. And the API for the
epiphan devices
has some bugs that we can not catch every resolution change.
So you will
need the scaler.
I was assigned the ticket to fix the problems with the
resolution changes,
but it turns out that the code was already in place (I think
it is
Waldemar's work). There was a bug (a one-liner) that I think
was causing
the problems. However I couldn't test it myself since we have
no official
capture agents in Vigo anymore, so Adam Mckenzie kindly tested
the patch in
their agents. In his experience, it seems that the agent deals
well
resolution changes, and the resulting media is OK.
I'm not aware of any other bugs in the API for the Epiphan
devices. You
mean the v4l, low-level API, or you mean the Matterhorn part?
If the
problem is in the drivers, then I agree with Rüdiger since the
problem is
outside our control and we cannot fix it. But if it's about
the Matterhorn
part, I don't think there's anything else to add. Waldemar (or
whoever did
this) did a good work and the pipeline dynamically adapts to
changes in the
video size using the 'videoscaler' element, which does not
need external
signals to detect resolution changes.
I'd say this was a bug fixing rather than a new feature, since
no new code
has been added. I'd very much like this to be included in the
release, so
that we can save the new adopters some money.There are still
two months
until the winter semester, so if the agent does still have
problems with
resolution changes (which, as I said, shouldn't happen
anymore), they will
not go undetected and people will still have time to buy
scalers if they
really need to.
Best regards
Rubén
-----------------------
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01/58801 DW 41523
mobil: 0664/60 588 4523
TU Wien
DVR-Nummer: 0005886
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________________________________________________
Rüdiger Rolf, M.A.
Universität Osnabrück - Zentrum virtUOS
Heger-Tor-Wall 12, 49069 Osnabrück
Telefon: (0541) 969-6511 - Fax: (0541) 969-16511
E-Mail: [email protected] <mailto:[email protected]>
Internet: www.virtuos.uni-osnabrueck.de
<http://www.virtuos.uni-osnabrueck.de>
-----------------------
[email protected] <mailto:[email protected]>
01/58801 DW 41523
mobil: 0664/60 588 4523
TU Wien
DVR-Nummer: 0005886
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________________________________________________
Rüdiger Rolf, M.A.
Universität Osnabrück - Zentrum virtUOS
Heger-Tor-Wall 12, 49069 Osnabrück
Telefon: (0541) 969-6511 - Fax: (0541) 969-16511
E-Mail:[email protected] <mailto:[email protected]>
Internet:www.virtuos.uni-osnabrueck.de <http://www.virtuos.uni-osnabrueck.de>
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To unsubscribe please email
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_______________________________________________
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________________________________________________
Rüdiger Rolf, M.A.
Universität Osnabrück - Zentrum virtUOS
Heger-Tor-Wall 12, 49069 Osnabrück
Telefon: (0541) 969-6511 - Fax: (0541) 969-16511
E-Mail: [email protected]
Internet: www.virtuos.uni-osnabrueck.de
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