If you specifically want to use the tools you will generally need the following;
- A gpx or like track file (from your smartphone)
- The images stamped in a way that the UTC date/time is “somewhere”.
The most common image “stamp” is usually the “Date and Time (Original)” EXIF tag. If your camera already produces this you are mostly already there. It’s been a while since I used any other method, so I don’t know if they are still supported. (eg date/time by filename)
The idea is that the tools process all the images in turn and create a json for all the required upload details. It can also optionally write position/direction info as EXIF tags. The Mapillary server doesn’t appear to use the EXIF tags at all, just the json data.
Assuming you have the image date/time stamp the mapillary tools will process and upload with one command. No other software needs to be run. The command however may need refining to suit your actual images.
The tools at GitHub - mapillary/mapillary_tools: Command line tools for processing and uploading Mapillary imagery have an extensive readme if you want to go that way. Happy to help further, but you may want to use the desktop loader instead!