Output: by default, it follows input resolution, frame rate, bitrate. However,
when the pixel rate of the input signal reaches 170MHz, 4:4:4/4:2:2, the
horizontal and vertical resolutions will both go down to half of the original
values.
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Bitrate Encoding: live stream at CBR (Constant Bitrate) for bandwidth
stability. VBR(Variable Bitrate) files vary the amount of output data per time
segment.
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Code type: options are H.264 and H.265(HEVC) encoders.
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Encoding profile: for H.264 encoder, the profiles can be High/Main
profile/Baseline. For H.265 (HEVC), it can be Main profile.
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Quantization range: options are Full range(0-255), Limited range(16-235).
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Keyframe interval: options are 1, 2, 5, 10, 30, 60sec. A smaller number will
result in a larger file size and less buffer time for seeing the first frame.
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Bit rate stats duration: adjust bit rate by image complexity to ensure the
stability of the code stream within the set period. The default value is
recommended. A smaller value means more information may need to be
discarded when the image data bursts.
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Time code SEI message: turn on the switch to get A/V sync between
multiple devices which support this SEI message as well. It is off by default.
HDMI supports to write timecode extracted from vendor specific (VS) info
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