[mythtv-users] Screenshots

[Bill Meek]

On 5/2/19 8:23 AM, Greg Oliver wrote:
> On Sat, Apr 27, 2019 at 4:22 PM Greg Oliver <oliver.greg at gmail.com> wrote:
> 
>> [snip]
>>
>> Sorry for the noise and thanks for all the help!
>>
>> My dumbass forgot it was "frontend" related and since I am no longer using
>> a frontend/backend combo, just needed to point it to a "frontend" rather
>> than "backend" and it still works :)
>>
>>
> Well, it does not work on Android TV - anyone know how to change the tmp
> directory to something in data that android will allow?
> 
> 05-02 08:20:56.609 17673 17699 W mythfrontend: (null):0 ((null)): this
> function is deprecated, use QScreen::grabWindow() instead. Defaulting to
> primary screen.
> 05-02 08:20:56.609 17673 17699 W mythfrontend: (null):0 ((null)):
> QImage::scaled: Image is a null image
> 05-02 08:20:56.654 17673 17705 I mfe     : 2019-05-02 08:20:56.589921 I
> Screen shot requested (0x0), format png
> 05-02 08:20:56.654 17673 17705 I mfe     : 2019-05-02 08:20:56.609735 I
> Saving screenshot to //tmp//myth-screenshot-XML.png (0x0)
> 05-02 08:20:56.654 17673 17705 I mfe     : 2019-05-02 08:20:56.609752 I
> MythMainWindow::screenShot Failed!

The frontend setting mentioned before can be used to change the default location:

   If the "Screen shot path" setting (settings.ScreenShotPath) doesn't exist,
   then /tmp is used directly.

The user running the FE must have write permission of course.

You could try the Services API, for example, although it appears to do the
same thing (it does honor ScreenShotPath.):

   curl --data Action=SCREENSHOT --data Height=720 --data Width=1080 <FE>:6547/Frontend/SendAction

I don't know (and can't test) the Android TV case. The "Image is a null image"
line in the log above doesn't sound very encouraging.

-- 
Bill