Quality control (QC) - GOP (Group Of Pictures)

Issue

The GOP settings are incorrect (variable instead of fixed).

Description

In video compression, a Group of Pictures (GOP) is a sequence of frames that includes intra-frames (I-frames) and inter-frames in order to balance quality, compression, and playback efficiency. 

Fix

To fix a variable GOP, you can configure the video encoder to use a fixed GOP by specifying a constant interval for I-frames. This ensures that I-frames appear at regular intervals (e.g., every 12 or 15 frames), which can be done by adjusting the GOP length settings in your encoding software or hardware

This can be done by re-exporting the file from your edit suite using the correct export settings (force fixed length GOP).

Our Peach Connect Export Guides can help you ensure your settings are correct when exporting files.

Note

This settings only applies to XDCAM50 which is a GOP codec as opposed to AVC-Intra which is an i-frame codec (no inter-frames).