GPSSpeed and GPSSpeed3D is a fixed value in video telemetry

[himynamesdave]

known good video before fix

exiftool -ee -G3 -X 8-FRVT-1-GS019025-trek_view_processed_full_nadir-1_with-nadir.mp4 > 8-FRVT-1-GS019025-trek_view_processed_full_nadir-1_with-nadir.xml

known good video uploaded to gsv

exiftool -ee -G3 -X UKEH002-trek_view_processed_full_nadir-1_with-nadir.mp4 > UKEH002-trek_view_processed_full_nadir-1_with-nadir.xml

known bad video

exiftool -ee -G3 -X UKSD049-trek_view_processed_full_nadir-1_with-nadir.mp4 > UKSD049-trek_view_processed_full_nadir-1_with-nadir.xml

Regardless of video, the GPSSpeed and GPSSpeed3D between GPS points is always 0.865 and 0.89

 <Track2:GPSSpeed>0.865</Track2:GPSSpeed>
 <Track2:GPSSpeed3D>0.89</Track2:GPSSpeed3D>

These values should be calculated using; speed m/s = distance (meters) / time (seconds)

This calculation should take the values from the current and next point.

The last point in the video telemetry should have the value 0 (b/c no subsequent point, so speed can be assumed to stopped).
8-FRVT-1-GS019025-trek_view_processed_full_nadir-1_with-nadir.txt
UKSD049-trek_view_processed_full_nadir-1_with-nadir.txt
UKEH002-trek_view_processed_full_nadir-1_with-nadir.txt