Epiphan Pearl Mini Live Video Production System - Manual (Page 420)

Pearl Mini User Guide
For example:
l
Input signal resolution is 720×480 (a 3:2 aspect ratio)
l
encoded resolution is 1280×800 (a 16:10 aspect ratio that is wider than the input resolution)
Borders are added to the left and right of the image to preserve the narrower ratio of the input.
Match output frame size with aspect ratio of input signal
The frame size is matched only for layouts that have only one source. Note that if you have
layouts with different frame sizes, switching them while live streaming will cause an interruption
and restart of the stream. The same thing happens if you change the resolution of your source
while streaming.
To change the output frame size on channels to match the aspect ratio of the video source:
1. Connect to the Admin panel and login as admin , see Connect to the Admin panel .
2. To determine the input port name of the video source that's used in the channel, select the channel
from the Channels menu and click Layouts . The custom layouts page opens.
3. Once you have determined the name of the video input source , select the input port for that video
source under Inputs menu.
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