# Problem OpenCamera EXIF and mapillary\_tools **URL:** \ **Category:** Command line tools\ **Created:** [May 8, 2021, 12:38pm UTC](https://forum.mapillary.com/t/problem-opencamera-exif-and-mapillary-tools/4836 "2021-05-08T12:38:50Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![Teddy73](https://avatars.discourse-cdn.com/v4/letter/t/3e96dc/32.png) [@Teddy73](https://forum.mapillary.com/u/Teddy73)\ **Post date:** [May 8, 2021, 12:38pm UTC](https://forum.mapillary.com/t/problem-opencamera-exif-and-mapillary-tools/4836/1 "2021-05-08T12:38:50Z")
Hi, I have a strange problem with mapillary\_tools process. I have some yi action cams, and when capturing with these, everything works fine. Now, I’m experimenting with OpenCamera on my Android11-Phone (Galaxy S10). For some reason, mapillary\_tools is not able to geotag pictures taken with OpenCamera and correlated to a standard gpx. Command is: mapillary\_tools process --rerun --advanced --import\_path “Aayi/OpenCam” --user\_name teddy73 --geotag\_source “gpx” --geotag\_source\_path “BT747/2021-05-07\_17-21\_Fri.gpx” --local\_time --offset\_time -1 --overwrite\_EXIF\_gps\_tag --interpolate\_directions --offset\_angle 3 --overwrite\_EXIF\_direction\_tag --duplicate\_distance 3 --duplicate\_angle 355 Error Code is: Inserting gps data into image EXIF: 0it [00:00, ?it/s]Error, capture time could not be extracted for image /home/ted/Aayi/OpenCam/IMG\_20210507\_172322.jpg I already tried to manipulate some EXIF tags with exiftool, but I did not succeed in finding out what is wrong. I deleted all sub-second tags, since that was the first thing that seemed to be different that the exifs out of the action cams. So, question is: Which EXIF tag is checked first for “capture time” and what format exactly does is have to be for mapillary\_tools to process? I’m using tools vers 0.6 python3, kubuntu, newest OpenCamera. I know it worked a year ago, didn’t use this combination since. Thanks in advance for any hint…