video_mirror_input and video_use_dedicated_encoder

Where these are most useful are when you have a lower rest endpoint needing to call into a conference and the video res on the output to the caller needs to match the input from the caller, think polycom VVX1500 or other such lower rest video phone.

So setting video_mirror_input=true and video_use_dedicated_encoder=true would trigger the output to match the input of the video from the caller.

Thanks,
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