ExifMapper

C# WPF desktop app that loads GPS metadata from a video via exiftool and displays an interactive offset map.

Requirements

• Windows
• .NET SDK 10 or newer
• Exiftool at:
  • D:\tools\exiftool-13.58_64\exiftool(-k).exe

Run

1. Build and run:
   • dotnet run --project .\ExifMapper.App\ExifMapper.App.csproj
2. In the app, browse to a video file and click Load GPS.
3. Interact with the map:
   • Click markers to view offset/time/speed popup.
   • Click list cards to focus marker.
   • Use the slider to scrub to nearest offset point.
   • Offsets are shown as MM:SS (with seconds also shown for precision).
   • Use Play In App At Offset to seek and play in the built-in player.
   • Use Open VLC At Offset to launch VLC at the selected timestamp.
   • Toggle street/satellite basemap in the map layer control.

Exiftool command used

-ee -G1 -a -s -gps* <videoPath>

Notes

• GPS records that have timestamps but no coordinates are still parsed for offset continuity, but only records with both latitude and longitude are plotted.
• The first parsed GPSDateTime is used as offset origin (0 seconds).
• The app supports exiftool(-k).exe by sending a newline to stdin to avoid the final -- press ENTER -- pause.