====== adv.videoConstraints ======
wrtc.adv.videoConstraints is a JSON object property used to control what image to get from local camera. You can specify min/max resolutions and framerates.

If undefined system will use camera's default resolution and framerate.

Please note these are just //requests// - the PC or browser can still decide to deliver some other camera resolution or framerate than requested.

As wrtc.adv.videoConstraints affects the local camera it will affect video quality in //all// calls.

<WRAP center round important 100%>
Not available in Safari browser. Value of wrtc.adv.videoConstraints is ignored by Safari browser. Other browsers may ignore the value too. Most compatible browser is currently Chrome.
</WRAP>

===== Value =====
JSON object containing any of:
  * minWidth: minimum image width, in pixels
  * maxWidth: maximum image width, in pixels
  * minHeight: minimum image height, in pixels
  * maxHeight: maximum image height, in pixels
  * minFrameRate: minimum framerate, images per second
  * maxFrameRate: maximum framerate, images per second
If not used please set to undefined, not empty object {}.

===== Default value =====
undefinded

===== Usage =====
After setting wrtc.adv.videoConstraints you must call [[ixnx:wrtc:js:api:wrtc:changemedia|wrtc.changeMedia()]]

===== Example =====
Request HD camera:\\
wrtc.adv.videoConstraints = {minWidth:1280,minHeight:720};\\
wrtc.changeMedia();

===== Different ways of controlling video quality =====
[[ixnx:wrtc:js:api:call:adv.setvideoencoding#different_ways_of_controlling_video_quality|Read here.]]

===== See Also =====
[[ixnx:wrtc:js:api:call:adv.setvideoencoding|call.adv.setVideoEncoding()]]