Mailing List Archive: MythTV: Commits

Ticket #2975: Remove pcHDTV V4L DTV support

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mythtv at cvs

Jan 22, 2007, 8:05 AM

Post #1 of 7 (594 views)
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Ticket #2975: Remove pcHDTV V4L DTV support

mythtv at cvs

Sep 6, 2007, 3:52 PM

Post #2 of 7 (436 views)
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Re: Ticket #2975: Remove pcHDTV V4L DTV support [In reply to]

mythtv at cvs

Sep 21, 2007, 7:17 PM

Post #3 of 7 (418 views)
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Re: Ticket #2975: Remove pcHDTV V4L DTV support [In reply to]

#2975: Remove pcHDTV V4L DTV support
---------------------+------------------------------------------------------
Reporter: danielk | Owner: danielk
Type: task | Status: closed
Priority: minor | Milestone: 0.21
Component: mythtv | Version: head
Severity: medium | Resolution: fixed
Mlocked: 0 |
---------------------+------------------------------------------------------

Comment(by David George <david [at] thegeorges>):

This commit has a regression for me. Just wanted to send this in case
anyone has the same problem.

I have a mixture of DVB and IVTV cards and I use the S-Video input on the
ivtv cards for capturing from satellite STB. With this commit the v4l2
SetInputAndFormat(9, ATSC) fails then the fallback to v4l1 is never called
which causes my externalcommand to never be called. I have added the
usingv4l1 = 1 back in if ioctl VIDIOC_S_STD fails and my external changer
is working again. I have the TVFormat in the channel editor for the
satellite channels to default which I wouldn't think should be used
because they come in via s-video and the TVFormat for the OTA channels as
ATSC. I also have TVFormat in my General settings set to ATSC.

Probably the real fix for this is to not bother trying to set the v4l
format unless the inputname starts with 'Tuner' (and possibly Antenna or
Television for other v4l cards?). I will work on a patch to do this, but
my time is limited and my above fix takes care of my immediate issue.

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/2975#comment:2>
MythTV <http://svn.mythtv.org/trac>
MythTV
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mythtv at cvs

Sep 21, 2007, 8:19 PM

Post #4 of 7 (418 views)
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Re: Ticket #2975: Remove pcHDTV V4L DTV support [In reply to]

mythtv at cvs

Sep 24, 2007, 11:00 AM

Post #5 of 7 (407 views)
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Re: Ticket #2975: Remove pcHDTV V4L DTV support [In reply to]

mythtv at cvs

Sep 29, 2007, 11:09 AM

Post #6 of 7 (397 views)
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Re: Ticket #2975: Remove pcHDTV V4L DTV support [In reply to]

#2975: Remove pcHDTV V4L DTV support
---------------------+------------------------------------------------------
Reporter: danielk | Owner: danielk
Type: task | Status: closed
Priority: minor | Milestone: 0.21
Component: mythtv | Version: head
Severity: medium | Resolution: fixed
Mlocked: 0 |
---------------------+------------------------------------------------------
Changes (by danielk):

* status: reopened => closed
* resolution: => fixed

Comment:

David, ATSC is an invalid TV format for capturing using the analog ivtv
card. Setting the TV format for the video source to the appropriate PAL,
SECAM, or NTSC format as should fix the reported problem.

This usingv4l1 fall-back hack was only added because the first pcHDTV
HD-2000 v4l driver was a v4l2 driver except for this one aspect where it
required one v4l1 call. The ivtv drivers do not require this hack, I think
you were simply able to get away with a incorrectly configured tvformat
because of bugs in the old v4l1 interface.

We can't get rid of the format call in the absence of a tuner because it
tells the hardware how to decode the signal. If you are in Luxembourg you
need to tell the hardware whether to decode the channel as PAL or SECAM on
a per channel basis; without setting the standard you would, at best, get
B&W images with the wrong standard configured.

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/2975#comment:5>
MythTV <http://svn.mythtv.org/trac>
MythTV
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mythtv at cvs

Nov 17, 2007, 9:11 AM

Post #7 of 7 (320 views)
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Re: Ticket #2975: Remove pcHDTV V4L DTV support [In reply to]

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