On Monday 17 March 2008 15:31, Bruce Taber wrote:
> I have a usage question concerning the combination of the video and
> radio tuners on PVR-500 and PVR-350. I'm using this in mythtv but I
> don't believe that is really relevant. The way it is being used is to
> tune to a specific video channel and then tune the radio on the same
> card so the radio audio replaces the audio that was heard from the
> original video tuning. As an example, I use this to tune the weather
> station to display on the TV but replace the audio with that
> available on any tunable radio station. It provides nice background
> music, talk radio, or whatever is available that I decide to listen
> to. It's also useful for replacing the television commentary on
> sports with the commentators from the radio. The radio commentators
> typically have to provide better information. It is a mechanism to
> provide my own simulcast setup, if you will. Normally, this would be
> done with a separate television/radio setup.
>
> My original intention was to make the radio work in mythtv and during
> the research found that this is a great and required feature that
> should be maintained. With the ivtv 1.0 driver this works great.
> However, with the ivtv 1.1.0 included with the 2.6.24.3-12.fc8 kernel
> it no longer functions that way. Attempting to tune the radio after
> displaying video in the 1.1.0 driver results in "device resource
> busy" or something close to that.
>
> My specific question is: Was the functionality removed intentionally
> for technical reasons or as a side affect of other changes?
> A secondary question would be: Is there another way around this in
> the ivtv 1.1.0 version that is included in the 2.6.24.3-X series
> kernels?
>
> Any information would be appreciated.
Hi Bruce,
There was a change where it is no longer allowed to switch to the radio
tuner on the fly without first stopping the capture. There are
technical reasons for this, and I might well revisit this issue in the
future and possible change it back again.
But what I don't understand is how you can still get video when tuned to
a radio station, that should not be possible. The only way I know where
this works is by getting video from the Composite or S-Video inputs,
and set the audio to the radio tuner input.
Although I guess this might be possible on the PVR-500, since it has
separate TV and radio tuners. I've never tried that, though.
Can you confirm that you used this with the PVR-500? If so, then in this
particular instance I think that returning busy is a driver bug since
only the audio capture is changed, not the video.
Regards,
Hans
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