About video output ports

Pearl-2's rear panel includes two HDMI video output ports. HDMI 1 is set to show Auto A and HDMI 2 is set to show Auto B by default. Both video output ports are configured to maintain aspect ratio, use the display's default resolution, and include audio at 100% volume. However, the audio meter is not shown by default.

Using the video output port takes CPU cycles and adds to the overall load on your Pearl-2. For optimum performance, keep displays disconnected from the video output port if you're not using them. Setups that already put a heavy load on the system's CPU may be negatively impacted if the external video output port is used.

You can use the Admin panel to configure the video output port parameters. If you're simply selecting a video source or channel and enabling/disabling audio for the output port, you can use your choice of either the Admin panel, the touch screen on Pearl-2, or Epiphan Live.  For channels that have audio, the audio is enabled by default.

Important considerations

  • When changing encoding parameters for a channel that's displayed on the video output port, it may revert to the display's default resolution if the output resolution is set to "Same as source". To resolve this, change the video output to a different resolution then back to "Same as source".
  • When using the video output port for confidence monitoring, some delay can be expected. For a 1080p video source, the average delay on the video output port is approximately 100 ms. For a 1080p channel, the average delay on the video output port is approximately 300 ms. The actual amount can vary, depending on the setup.
  • If an SDI or HDMI video input source that is selected to display at the HDMI output port also appears in a custom layout for a channel, then the channel's encoding settings are used at the HDMI output. Changing the channel's frame rate will change the frame rate used at the output port for that video input. If the video source appears in multiple layouts in different channels, the one with the highest frame rate set in the encoding settings is used.
  • Using the video output ports adds to the overall system load on Pearl-2. If your system has a high system load and you're using the video outputs, monitor the frame rate of your channels on Pearl-2 and adjust your setup if there's an unacceptable drop in the frame rate. Remedial measures you can take include eliminating video scaling at the inputs, adjusting the encoding bitrates, and deleting extra layouts and channels that are no longer being used.
  • Use MultiViewer to preivew multiple sources on the video output port in a grid for confidence monitoring with minimal impact to system loading.

Related links

Set up the video output port using the Admin panel

Set up and enable MultiViewer

Select the video output source using the touch screen

Monitor and select the video output source using Epiphan Live