The ffprobe show frames output shows the following details:
[FRAME]
media_type=video
key_frame=1
pkt_pts=42
pkt_pts_time=0:00:00.042000
pkt_dts=42
pkt_dts_time=0:00:00.042000
pkt_duration=N/A
pkt_duration_time=N/A
pkt_pos=799
width=1920
height=1080
pix_fmt=yuv420p
sample_aspect_ratio=1:1
pict_type=I
coded_picture_number=0
display_picture_number=0
interlaced_frame=0
top_field_first=0
repeat_pict=0
reference=3
[/FRAME]
I was reading this article and was wondering how to differentiate between the two types of frames from the above output.