[mythtv-users] HD-PVR recordings oversaturated

Michael T. Dean mtdean at thirdcontact.com
Mon Aug 29 19:21:36 UTC 2011

On 08/29/2011 02:33 PM, Jerry Rubinow wrote:
> On Mon, Aug 29, 2011 at 1:20 PM, Michael T. Dean wrote:
>> I'm definitely not "anyone who's familiar with the driver", but I will
>> say that for other analog encoders (such as the IVTV devices), MythTV
>> always sets the contrast, brightness, color (or colour, as the case may
>> be), and hue according to the values you specified--which all start at
>> default values.
>> You can change the default values by using G in Live TV playback to set
>> the capture card picture controls.  Note that this will not work on a
>> digital capture device (DVB/ATSC/QAM/Firewire/...) because those aren't
>> actually recording the video, but just writing the provided recorded
>> video stream.
>> Using G to set the capture card picture controls differs from using F to
>> set the playback picture controls.  F is used in Live TV or recording
>> playback to change the contrast, brightness, color, and hue at
>> playback--and affects playback of all recordings and videos, regardless
>> of channel and capture device.  Note, also, there's a per-channel
>> picture control available, in which you can specify contrast,
>> brightness, color, and hue for individual channels using the
>> mythtv-setup or MythWeb channel editor.  You also don't want
>> this--especially if you have, for example, an IVTV card recording from
>> the same channel.
>> I don't know if this applied to HD-PVR, but before you go and set up a
>> hack, try G--and then tell all the others who are using the hacks if it
>> works properly for the HD-PVR.  :)
> Mike, thanks for that, I will try it tonight.  Are the settings accessed by
> G saved in the database, or do they just apply to the current mythbackend
> session?

Saved in the database to apply to the capture card.  So, you'll have to 
do it for each HD-PVR (and only hit G when you're watching Live TV 
/from/ the HD-PVR).


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