BLUG: 08/02/07

Thursday, August 2, 2007

Re: [BLUG] Hauppauge PVR-150 s-video capture problems

Chris - that looks very promising. I hope to test it tonight.

Thank you to all,
Peter

On Thursday 02 August 2007 12:46, Chris Shelton wrote:
> Michael,
>
> On Thu, 2 Aug 2007 at 11:55am, Michael Schultheiss wrote:
> > Peter G. Brown wrote:
> > > I tried switching channels with no success. I checked this website in
> > > the hope (and others) that might see a use with s-video. I did not
> > > find any.
> >
> > You don't want to switch channels, you want to switch inputs. You're
> > still dealing with the F connector from what I can tell. If you get the
> > card to switch to the S-video you should be golden.
>
> I have a PVR-150 in my home mythtv box, and with a bit of digging, I
> think I've found the way to switch inputs -- v4l2-ctl. Under gentoo,
> this a part of the media-tv/ivtv package.
>
>
> mythtv mythtv # v4l2-ctl --list-inputs
> ioctl: VIDIOC_ENUMINPUT
> Input : 0
> Name : Tuner 1
> Type : 0x00000001
> Audioset: 0x00000007
> Tuner : 0x00000000
> Standard: 0x0000000000001000 ( NTSC )
> Status : 0
>
> Input : 1
> Name : S-Video 1
> Type : 0x00000002
> Audioset: 0x00000007
> Tuner : 0x00000000
> Standard: 0x0000000000FFFFFF ( PAL NTSC SECAM )
> Status : 0
>
> Input : 2
> Name : Composite 1
> Type : 0x00000002
> Audioset: 0x00000007
> Tuner : 0x00000000
> Standard: 0x0000000000FFFFFF ( PAL NTSC SECAM )
> Status : 0
>
> Input : 3
> Name : S-Video 2
> Type : 0x00000002
> Audioset: 0x00000007
> Tuner : 0x00000000
> Standard: 0x0000000000FFFFFF ( PAL NTSC SECAM )
> Status : 0
>
> Input : 4
> Name : Composite 2
> Type : 0x00000002
> Audioset: 0x00000007
> Tuner : 0x00000000
> Standard: 0x0000000000FFFFFF ( PAL NTSC SECAM )
> Status : 0
>
> mythtv mythtv # v4l2-ctl --get-input
> Video input : 0 (Tuner 1)
> mythtv mythtv # v4l2-ctl --set-input=1
> Video input set to 1 (S-Video 1)
>
>
> I haven't verified this, but it certainly looks like this is what you
> need to switch the currently active input on the PVR-150.
>
> chris
_______________________________________________
BLUG mailing list
BLUG@linuxfan.com
http://mailman.cs.indiana.edu/mailman/listinfo/blug

Re: [BLUG] Hauppauge PVR-150 s-video capture problems

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Michael,

On Thu, 2 Aug 2007 at 11:55am, Michael Schultheiss wrote:

> Peter G. Brown wrote:
> > I tried switching channels with no success. I checked this website in
> > the hope (and others) that might see a use with s-video. I did not
> > find any.
>
> You don't want to switch channels, you want to switch inputs. You're
> still dealing with the F connector from what I can tell. If you get the
> card to switch to the S-video you should be golden.

I have a PVR-150 in my home mythtv box, and with a bit of digging, I
think I've found the way to switch inputs -- v4l2-ctl. Under gentoo,
this a part of the media-tv/ivtv package.

mythtv mythtv # v4l2-ctl --list-inputs
ioctl: VIDIOC_ENUMINPUT
Input : 0
Name : Tuner 1
Type : 0x00000001
Audioset: 0x00000007
Tuner : 0x00000000
Standard: 0x0000000000001000 ( NTSC )
Status : 0

Input : 1
Name : S-Video 1
Type : 0x00000002
Audioset: 0x00000007
Tuner : 0x00000000
Standard: 0x0000000000FFFFFF ( PAL NTSC SECAM )
Status : 0

Input : 2
Name : Composite 1
Type : 0x00000002
Audioset: 0x00000007
Tuner : 0x00000000
Standard: 0x0000000000FFFFFF ( PAL NTSC SECAM )
Status : 0

Input : 3
Name : S-Video 2
Type : 0x00000002
Audioset: 0x00000007
Tuner : 0x00000000
Standard: 0x0000000000FFFFFF ( PAL NTSC SECAM )
Status : 0

Input : 4
Name : Composite 2
Type : 0x00000002
Audioset: 0x00000007
Tuner : 0x00000000
Standard: 0x0000000000FFFFFF ( PAL NTSC SECAM )
Status : 0

mythtv mythtv # v4l2-ctl --get-input
Video input : 0 (Tuner 1)
mythtv mythtv # v4l2-ctl --set-input=1
Video input set to 1 (S-Video 1)

I haven't verified this, but it certainly looks like this is what you
need to switch the currently active input on the PVR-150.

chris

- --
Chris Shelton
Indiana University - Financial Management Services
- -

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (GNU/Linux)

iD8DBQFGsgp8M5TknMKatUwRAohJAKCxevf+ppW+v9n3zPm/udP4Jym3awCfbC71
TNQINohHUjuXpGR34qqC+EQ=
=aSrr
-----END PGP SIGNATURE-----
_______________________________________________
BLUG mailing list
BLUG@linuxfan.com
http://mailman.cs.indiana.edu/mailman/listinfo/blug

Re: [BLUG] Hauppauge PVR-150 s-video capture problems

Peter G. Brown wrote:
> I tried switching channels with no success. I checked this website in
> the hope (and others) that might see a use with s-video. I did not
> find any.

You don't want to switch channels, you want to switch inputs. You're
still dealing with the F connector from what I can tell. If you get the
card to switch to the S-video you should be golden.
_______________________________________________
BLUG mailing list
BLUG@linuxfan.com
http://mailman.cs.indiana.edu/mailman/listinfo/blug

Re: [BLUG] Hauppauge PVR-150 s-video capture problems

I tried switching channels with no success. I checked this website in the hope
(and others) that might see a use with s-video. I did not find any.

On Thursday 02 August 2007 11:30, Michael Schultheiss wrote:
> Michael Schultheiss wrote:
> > Peter G. Brown wrote:
> > > I will verify the card in the meantime on windows :-(
> >
> > Another thing you could try is other /dev/video devices. I'm fairly
> > certain you're seeing nothing since you're working with the F-connector
> > rather than the S-video one.
>
> http://ivtvdriver.org/index.php/Howto#Module_options says ivtvctl can
> switch inputs.
> _______________________________________________
> BLUG mailing list
> BLUG@linuxfan.com
> http://mailman.cs.indiana.edu/mailman/listinfo/blug
_______________________________________________
BLUG mailing list
BLUG@linuxfan.com
http://mailman.cs.indiana.edu/mailman/listinfo/blug

Re: [BLUG] Hauppauge PVR-150 s-video capture problems

Michael Schultheiss wrote:
> Peter G. Brown wrote:
> > I will verify the card in the meantime on windows :-(
>
> Another thing you could try is other /dev/video devices. I'm fairly
> certain you're seeing nothing since you're working with the F-connector
> rather than the S-video one.

http://ivtvdriver.org/index.php/Howto#Module_options says ivtvctl can
switch inputs.
_______________________________________________
BLUG mailing list
BLUG@linuxfan.com
http://mailman.cs.indiana.edu/mailman/listinfo/blug

Re: [BLUG] Hauppauge PVR-150 s-video capture problems

Peter G. Brown wrote:
> I will verify the card in the meantime on windows :-(

Another thing you could try is other /dev/video devices. I'm fairly
certain you're seeing nothing since you're working with the F-connector
rather than the S-video one.
_______________________________________________
BLUG mailing list
BLUG@linuxfan.com
http://mailman.cs.indiana.edu/mailman/listinfo/blug

Re: [BLUG] Hauppauge PVR-150 s-video capture problems

There appears to be some confusion about how Video4Linux works.

Does the card work with xawtv or another Video4Linux program?

The read() interface will *only* read single frames, and it isn't
supported in all drivers. Cat'ing from the device performs the
read() operation, if available. If it isn't available, cat may
not recognize the error and may just give you garbage. (Also,
there is no way to indicate timing information with the read()
operation. It is usable for webcams, but it isn't really usable
for video streams.)

cat'ing a video device won't work. Don't try it.

To get a usable video stream you *have* to use either mmap'ed I/O
or user-pointer I/O. Both of these are shared memory situations,
it is just a matter of who allocates the memory. Not all drivers
support both methods. (Most Video4Linux2 drivers will support at
least one streaming protocol, though this need not be the case.)

There are also ioctl()s control the MPEG settings. Only key frames
are usable independantly, every other MPEG frame is a product of
the stream (up to the last key frame). This makes MPEG pretty much
unusable via the read() operation.

Additionally, typically a single device can support multiple
inputs. This would be like S/Video and Cable, for instance. In
these cases you do *not* typically get a seperate device. Instead
you need to use an ioctl to change the current input. (There's
also an ioctl to change the channel of a tuner.)

I hope this helps.

Cheers,
Steven Black

On Wed, Aug 01, 2007 at 08:41:41PM -0400, Peter G. Brown wrote:
> Hello,
>
> Running Kubuntu Feisty.
>
> dmesg | grep ivtv - looks good.
>
> [ 13.289761] ivtv: ==================== START INIT IVTV
> ====================
> [ 13.289772] ivtv: version 0.10.1 (tagged release) loading
> [ 13.289776] ivtv: Linux version: 2.6.20-16-generic SMP mod_unload 586
> [ 13.289780] ivtv: In case of problems please include the debug info
> between
> [ 13.289785] ivtv: the START INIT IVTV and END INIT IVTV lines, along with
> [ 13.289789] ivtv: any module options, when mailing the ivtv-users
> mailinglist.
> [ 13.289987] ivtv0: Autodetected Hauppauge card (cx23416 based)
> [ 13.303122] ivtv0: Unreasonably low latency timer, setting to 64 (was 32)
> [ 13.981738] ivtv0: loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
> [ 14.195690] ivtv0: Encoder revision: 0x02060039
> [ 14.264781] ivtv0: Autodetected Hauppauge WinTV PVR-150
> [ 14.264784] ivtv0: reopen i2c bus for IR-blaster support
> [ 14.341285] tuner 0-0061: chip found @ 0xc2 (ivtv i2c driver #0)
> [ 14.505591] cx25840 0-0044: cx25843-23 found @ 0x88 (ivtv i2c driver #0)
> [ 17.834563] wm8775 0-001b: chip found @ 0x36 (ivtv i2c driver #0)
> [ 17.879873] ivtv0: Registered device video0 for encoder MPEG (4 MB)
> [ 17.880198] ivtv0: Registered device video32 for encoder YUV (2 MB)
> [ 17.880539] ivtv0: Registered device vbi0 for encoder VBI (1 MB)
> [ 17.880707] ivtv0: Registered device video24 for encoder PCM audio (1 MB)
> [ 18.210495] ivtv0: Initialized Hauppauge WinTV PVR-150, card #0
> [ 18.210538] ivtv: ==================== END INIT IVTV
> ====================
>
>
> With my digital camcorder attached via s-video to the PVR-150 s-video I try
>
> cat /dev/video0 > /tmp/test.mpg
>
> Try to open it in mplayer and get fuzzy black with colour streaks.
>
> ivtv-tune -d /dev/video0 does not help.
>
> If I try cat /dev/video0 > /tmp/test.mpg without pressing play on the
> camcorder - I get the same display in mplayer as when I press play on the
> camcorder.
>
> Any suggestions how I can get s-video to work?
>
> Thank you,
>
> Peter Brown
>
> _______________________________________________
> BLUG mailing list
> BLUG@linuxfan.com
> http://mailman.cs.indiana.edu/mailman/listinfo/blug
_______________________________________________
BLUG mailing list
BLUG@linuxfan.com
http://mailman.cs.indiana.edu/mailman/listinfo/blug

Re: [BLUG] Hauppauge PVR-150 s-video capture problems

I will verify the card in the meantime on windows :-(

On Thursday 02 August 2007 10:25, Michael Schultheiss wrote:
> Peter G. Brown wrote:
> > I am not sure - MythTV (I installed it in the hope I would make progress)
> > assigned /dev/video0 to it (s-video), it also listed it for mpeg and so
> > went with it (ivtv did the same thing (mpeg) - ivtv0: Registered device
> > video0 for encoder MPEG (4 MB).
>
> The ivtv driver is what assigns the devices. My MythTV box with the
> PVR-150's isn't online right now. I can put it online and check its
> devices, this evening or this weekend.
> _______________________________________________
> BLUG mailing list
> BLUG@linuxfan.com
> http://mailman.cs.indiana.edu/mailman/listinfo/blug
_______________________________________________
BLUG mailing list
BLUG@linuxfan.com
http://mailman.cs.indiana.edu/mailman/listinfo/blug

Re: [BLUG] Hauppauge PVR-150 s-video capture problems

Thank you - I would appreciate that.

Re: [BLUG] Hauppauge PVR-150 s-video capture problems

Peter G. Brown wrote:
> I am not sure - MythTV (I installed it in the hope I would make progress)
> assigned /dev/video0 to it (s-video), it also listed it for mpeg and so went
> with it (ivtv did the same thing (mpeg) - ivtv0: Registered device video0
> for encoder MPEG (4 MB).

The ivtv driver is what assigns the devices. My MythTV box with the
PVR-150's isn't online right now. I can put it online and check its
devices, this evening or this weekend.
_______________________________________________
BLUG mailing list
BLUG@linuxfan.com
http://mailman.cs.indiana.edu/mailman/listinfo/blug

Re: [BLUG] Hauppauge PVR-150 s-video capture problems

I am not sure - MythTV (I installed it in the hope I would make progress)
assigned /dev/video0 to it (s-video), it also listed it for mpeg and so went
with it (ivtv did the same thing (mpeg) - ivtv0: Registered device video0
for encoder MPEG (4 MB).

Thanks,
Peter
On Thursday 02 August 2007 09:38, Michael Schultheiss wrote:
> Peter G. Brown wrote:
> > With my digital camcorder attached via s-video to the PVR-150 s-video I
> > try
> >
> > cat /dev/video0 > /tmp/test.mpg
>
> Are you sure /dev/video0 is the S-Video? I've got a pair of PVR-150's
> and the F connector is the first input iirc.
> _______________________________________________
> BLUG mailing list
> BLUG@linuxfan.com
> http://mailman.cs.indiana.edu/mailman/listinfo/blug
_______________________________________________
BLUG mailing list
BLUG@linuxfan.com
http://mailman.cs.indiana.edu/mailman/listinfo/blug

Re: [BLUG] Hauppauge PVR-150 s-video capture problems

Peter G. Brown wrote:
> With my digital camcorder attached via s-video to the PVR-150 s-video I try
>
> cat /dev/video0 > /tmp/test.mpg

Are you sure /dev/video0 is the S-Video? I've got a pair of PVR-150's
and the F connector is the first input iirc.
_______________________________________________
BLUG mailing list
BLUG@linuxfan.com
http://mailman.cs.indiana.edu/mailman/listinfo/blug

Re: [BLUG] Hauppauge PVR-150 s-video capture problems

I was hoping someone would not ask me that - only way I know is to install
Windows XP and test it within that....

On Wednesday 01 August 2007 22:08, Joe Auty wrote:
> Are you convinced that the card actually works, and that your connection
> is good?
>
> Peter G. Brown wrote:
> > Hello,
> >
> > Running Kubuntu Feisty.
> >
> > dmesg | grep ivtv - looks good.
> >
> > [ 13.289761] ivtv: ==================== START INIT IVTV
> > ====================
> > [ 13.289772] ivtv: version 0.10.1 (tagged release) loading
> > [ 13.289776] ivtv: Linux version: 2.6.20-16-generic SMP mod_unload 586
> > [ 13.289780] ivtv: In case of problems please include the debug info
> > between
> > [ 13.289785] ivtv: the START INIT IVTV and END INIT IVTV lines, along
> > with [ 13.289789] ivtv: any module options, when mailing the
> > ivtv-users mailinglist.
> > [ 13.289987] ivtv0: Autodetected Hauppauge card (cx23416 based)
> > [ 13.303122] ivtv0: Unreasonably low latency timer, setting to 64 (was
> > 32) [ 13.981738] ivtv0: loaded v4l-cx2341x-enc.fw firmware (376836
> > bytes) [ 14.195690] ivtv0: Encoder revision: 0x02060039
> > [ 14.264781] ivtv0: Autodetected Hauppauge WinTV PVR-150
> > [ 14.264784] ivtv0: reopen i2c bus for IR-blaster support
> > [ 14.341285] tuner 0-0061: chip found @ 0xc2 (ivtv i2c driver #0)
> > [ 14.505591] cx25840 0-0044: cx25843-23 found @ 0x88 (ivtv i2c driver
> > #0) [ 17.834563] wm8775 0-001b: chip found @ 0x36 (ivtv i2c driver #0)
> > [ 17.879873] ivtv0: Registered device video0 for encoder MPEG (4 MB) [
> > 17.880198] ivtv0: Registered device video32 for encoder YUV (2 MB) [
> > 17.880539] ivtv0: Registered device vbi0 for encoder VBI (1 MB) [
> > 17.880707] ivtv0: Registered device video24 for encoder PCM audio (1 MB)
> > [ 18.210495] ivtv0: Initialized Hauppauge WinTV PVR-150, card #0 [
> > 18.210538] ivtv: ==================== END INIT IVTV
> > ====================
> >
> >
> > With my digital camcorder attached via s-video to the PVR-150 s-video I
> > try
> >
> > cat /dev/video0 > /tmp/test.mpg
> >
> > Try to open it in mplayer and get fuzzy black with colour streaks.
> >
> > ivtv-tune -d /dev/video0 does not help.
> >
> > If I try cat /dev/video0 > /tmp/test.mpg without pressing play on the
> > camcorder - I get the same display in mplayer as when I press play on the
> > camcorder.
> >
> > Any suggestions how I can get s-video to work?
> >
> > Thank you,
> >
> > Peter Brown
> >
> > _______________________________________________
> > BLUG mailing list
> > BLUG@linuxfan.com
> > http://mailman.cs.indiana.edu/mailman/listinfo/blug
_______________________________________________
BLUG mailing list
BLUG@linuxfan.com
http://mailman.cs.indiana.edu/mailman/listinfo/blug

Thursday, August 2, 2007

Blog Archive