Hi Richard, it looks like there's a variable frame rate.
Complete name : G:\Kalagadi_2021\SamsungPhone\Day6-Augrabies\DJI_20210812_123231_37_video.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (isom/mp42)
File size : 20.3 MiB
Duration : 9 s 973 ms
Overall bit rate : 17.1 Mb/s
Encoded date : UTC 2021-08-12 10:32:41
Tagged date : UTC 2021-08-12 10:32:41
xyz : -28.6148+020.3400/
com.android.version : 11
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings : CABAC / 1 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 1 frame
Format settings, GOP : M=1, N=30
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 9 s 973 ms
Source duration : 9 s 898 ms
Bit rate : 16.9 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 30.000 FPS
Minimum frame rate : 29.940 FPS
Maximum frame rate : 30.050 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.272
Stream size : 20.0 MiB (98%)
Source stream size : 20.0 MiB (98%)
Title : VideoHandle
Language : English
Encoded date : UTC 2021-08-12 10:32:41
Tagged date : UTC 2021-08-12 10:32:41
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
mdhd_Duration : 9973
Codec configuration box : avcC
Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 9 s 938 ms
Bit rate mode : Constant
Bit rate : 256 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 44.1 kHz
Frame rate : 43.066 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 311 KiB (1%)
Title : SoundHandle
Language : English
Encoded date : UTC 2021-08-12 10:32:41
Tagged date : UTC 2021-08-12 10:32:41