minIInterval

Specify the minimum number of frames allowed between two IDR-frames in your output. This includes frames created at the start of a GOP or a scene change. Use Min I-Interval to improve video compression by varying GOP size when two IDR-frames would be created near each other. For example, if a regular cadence-driven IDR-frame would fall within 5 frames of a scene-change IDR-frame, and you set Min I-interval to 5, then the encoder would only write an IDR-frame for the scene-change. In this way, one GOP is shortened or extended. If a cadence-driven IDR-frame would be further than 5 frames from a scene-change IDR-frame, then the encoder leaves all IDR-frames in place. To manually specify an interval: Enter a value from 1 to 30. Use when your downstream systems have specific GOP size requirements. To disable GOP size variance: Enter 0. MediaConvert will only create IDR-frames at the start of your output's cadence-driven GOP. Use when your downstream systems require a regular GOP size.