Native Resolution

<b>adam-aph code (xbmc pull 1096) updated to Frodo</b>
Native resolution should be used only if no up-/downscaling is made by XBMC.

&lt;video&gt;
...
&lt;nativeupscale&gt;
&lt;overridefps&gt;true&lt;/overridefps&gt;
&lt;correctpixelratio&gt;true&lt;/correctpixelratio&gt;
&lt;destres&gt;1920x1080&lt;/destres&gt;
&lt;minoutres&gt;0x0&lt;/minoutres&gt;
&lt;maxsrcres&gt;0x0&lt;/maxsrcres&gt;
&lt;/nativeupscale&gt;
...
&lt;/video&gt;

where:
&lt;overridefps&gt;        - controls if the fps can be overridden or not (default is 'true')
&lt;correctpixelratio&gt;  - controls if the output should be stretched to final screen dimensions (default is 'true')
&lt;destres&gt;            - controls the destination resolution (width x height), to which the source will be scaled by AVR (default is '1920x1080')
&lt;minoutres&gt;         - controls the minimum acceptable output resolution (width x height), which will be generated by xbmc (default is '0x0' - not active)
&lt;maxsrcres&gt;         - controls the maximum source resolution (width x height), which will be handled by native scaling (default is '1024x768', '0x0' disables this check)