I am trying to exrtact key frame information from a mp4 video using ffprobe with the command:
ffprobe -select_streams v -show_frames FILE_NAME 2>/dev/null
I am getting the list of all frames. From these, I searched for frames with pict_type=I to recognise I-frames. However, there were about 10 of the total 700 I frames which had
media_type=video key_frame=0 pict_type=I
What are these frames? If these are I-frames what makes them not a key_frame?