![]() Changing the channel's frame rate will change the frame rate used at the output port for that video input. 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. ![]() See Remove black bars (matte) from the video. If your channel has a custom layout with only one source and your source and stream aspect ratios differ, then your source appears centered in the frame and matte bars are added automatically to the top and bottom (or left and right sides) of the frame to make up the difference. If you have unchecked all the manual resizing and positioning boxes in the custom layout editor and you downscale the video source using the frame size setting on the Encoding tab (for example, select 1280×720 frame size for a full HD video source), then the source appears cropped within the frame instead of scaling to fit the frame.For optimum system performance, the frame size of the channel should be set to match the frame size of your video input source to avoid scaling, see Optimum CPU performance.This avoids the stream from stopping and restarting due to frame size changes when switching between single-source layouts that use different frame sizes. If you plan to switch layouts during a live stream, a fixed frame rate is recommended. If you're channel has multiple video sources or layouts, you must manually set a frame size for the channel. Video with a high level of motion and high resolution, such as sporting events, requires a higher bitrate.īy default, Pearl-2 automatically uses the incoming video source frame size as the frame size for streaming and recording when the channel has only one layout with a single video source. Bitrate: If using the H.264 video codec, you can increase or decrease image quality by increasing or decreasing the channel's Bitrate value.Limit frame rate: You can limit the frame rate for the channel.The longer the key frame interval, the smaller the video file size (and vice versa). Key frame interval: How often a key frame that contains all the pixels is sent when streaming.This can be set to automatically match the input video's resolution or set to a fixed resolution. Frame size: The resolution applied to the channel when you stream, record, or output video to a confidence monitor.Video encoding profile: This can be set to High, Main, or Baseline.Hardware or software encoding: Hardware encoding is the default setting and is the recommended encoding for use with Pearl-2.Options are H.264 (default) and Motion JPEG. Video codec: The video codec determines the type of compression and decompression, and also affects the video quality.You can configure the video encoding settings for a channel using the Admin panel.
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