Extract data from garmin 66W

ghita

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Hey,
Could please help me, I need to extract data (GPS, Velocity, time and direction) from Garmin 66 W, I have also Thinkware dashcam but It's compatible with dashcamviewer.com and it works? Unfortunately, the Gramin Dashcam is not compatible.

Thank you
 

ivanwi11iams

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Not sure of the answer. But, I guess I am asking, are you trying to share the data with someone?
If so, why not simply copy the data from the memory card of the Garmin, and upload to a computer/cloud location?
 
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ghita

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Hey, Thank you for your reponse, I need to have useful data which I can read easily, not on videos. So I want to extract GPS, velocity data from the garmin dashcam
 

lacibaci

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ExifTool can do this. Typing following command:
lac@heron:~/Desktop$ exiftool -ee -c "%.6f" 20190920-121547.mp4 | grep -e GPS -e "Sample Time"

will produce this output:
Sample Time : 0 s
GPS Latitude : 40.454311 N
GPS Longitude : 79.670305 W
GPS Speed : 34
GPS Speed Ref : mph
Sample Time : 1.00 s
GPS Latitude : 40.454175 N
GPS Longitude : 79.670289 W
GPS Speed : 33
GPS Speed Ref : mph
Sample Time : 2.00 s
GPS Latitude : 40.454042 N
GPS Longitude : 79.670300 W
GPS Speed : 32
GPS Speed Ref : mph
Sample Time : 3.00 s
GPS Latitude : 40.453892 N
GPS Longitude : 79.670291 W
GPS Speed : 32
GPS Speed Ref : mph
...


So for one minute mp4 you will get about 60 samples. I use ExifTool also to rename Garmin files:
https://dashcamtalk.com/forum/threads/renaming-files-and-shifting-time.30209/#post-354755
 
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ghita

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ExifTool can do this. Typing following command:
lac@heron:~/Desktop$ exiftool -ee -c "%.6f" 20190920-121547.mp4 | grep -e GPS -e "Sample Time"

will produce this output:
Sample Time : 0 s
GPS Latitude : 40.454311 N
GPS Longitude : 79.670305 W
GPS Speed : 34
GPS Speed Ref : mph
Sample Time : 1.00 s
GPS Latitude : 40.454175 N
GPS Longitude : 79.670289 W
GPS Speed : 33
GPS Speed Ref : mph
Sample Time : 2.00 s
GPS Latitude : 40.454042 N
GPS Longitude : 79.670300 W
GPS Speed : 32
GPS Speed Ref : mph
Sample Time : 3.00 s
GPS Latitude : 40.453892 N
GPS Longitude : 79.670291 W
GPS Speed : 32
GPS Speed Ref : mph
...


So for one minute mp4 you will get about 60 samples. I use ExifTool also to rename Garmin files:
https://dashcamtalk.com/forum/threads/renaming-files-and-shifting-time.30209/#post-354755

Thank you for your response, I am going to try Exiftool.
 
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ghita

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hey @lacibaci I tried the command line, it's just give sample time for 2 models of cameras thinkware 800 Pro and garmin 66W.
exiftool -ee -c "%.6f" GRMN0017.MP4 | grep -e GPS -e "Sample Time"
Sample Time : 0 s
Sample Time : 1.00 s
Sample Time : 2.00 s
Sample Time : 3.00 s
Sample Time : 4.00 s
Sample Time : 5.00 s
Sample Time : 6.00 s
Sample Time : 7.00 s
Sample Time : 8.00 s
Sample Time : 9.00 s
Sample Time : 10.00 s
Sample Time : 11.00 s
Sample Time : 12.00 s
Sample Time : 13.00 s
Sample Time : 14.00 s
Sample Time : 15.00 s
Sample Time : 16.00 s
Sample Time : 17.00 s
Sample Time : 18.00 s
Sample Time : 19.00 s
Sample Time : 20.00 s
Sample Time : 21.00 s
Sample Time : 22.00 s
Sample Time : 23.00 s
Sample Time : 24.00 s
Sample Time : 25.00 s
Sample Time : 26.00 s
Sample Time : 27.00 s
Sample Time : 28.00 s
Sample Time : 29.00 s
Sample Time : 0:00:30
Sample Time : 0:00:31
Sample Time : 0:00:32
Sample Time : 0:00:33
Sample Time : 0:00:34
Sample Time : 0:00:35
Sample Time : 0:00:36
Sample Time : 0:00:37
Sample Time : 0:00:38
Sample Time : 0:00:39
Sample Time : 0:00:40
Sample Time : 0:00:41
Sample Time : 0:00:42
Sample Time : 0:00:43
Sample Time : 0:00:44
Sample Time : 0:00:45
Sample Time : 0:00:46
Sample Time : 0:00:47
Sample Time : 0:00:48
Sample Time : 0:00:49
Sample Time : 0:00:50
Sample Time : 0:00:51
Sample Time : 0:00:52
Sample Time : 0:00:53
Sample Time : 0:00:54
Sample Time : 0:00:55
Sample Time : 0:00:56
Sample Time : 0:00:57
Sample Time : 0:00:58
Sample Time : 0:00:59
 

lacibaci

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First, this will probably not work for Thinkware cameras as they may use different format. Second, make sure GPS stamping is on for Garmin (GPS coordinates show in the video)
When you turn GPS stamping OFF it is not only removed from image but also from logging.
Also, what version of ExifTool do you have? What is the output from:
exiftool -ee GRMN0017.MP4
 
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ghita

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1569440217054.png That what's I see on video of garmin. I work on exiftool in ubunto in virtual box, and this is the result for the command you give me
 
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ghita

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I installed with this command on ubuntu: apt-get install libimage-exiftool -perl
But I can install it on windows if it's gonna work

Thank you for your help
 

lacibaci

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I installed with this command on ubuntu: apt-get install libimage-exiftool -perl
But I can install it on windows if it's gonna work

Thank you for your help
What is the version of your ExifTool?
Execute:
exiftool -ver
 

lacibaci

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the version is 10.80
OK, that is very old. The ability to pull data from Garmin Dash Cam has been implemented relatively recently. Current version is 11.65 and that's what I'm using.
 
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ghita

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Hey
I just installed the new version of exiftool, Thank you It's working for garmin.
 
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ghita

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Thank you for your response, I am going to try Exiftool.

Another question, I am new at Linux,
Can I add the date and time exist in the file name to the text file to appear in the file because I want to make a text file to have all the data for all videos. And I want to separate every one minute video with the corresponding date. Thank you
 

lacibaci

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Another question, I am new at Linux,
Can I add the date and time exist in the file name to the text file to appear in the file because I want to make a text file to have all the data for all videos. And I want to separate every one minute video with the corresponding date. Thank you
Once you have the data, you can format it however you like. I would suggest learning about shell scripts. Also, ExifTool can spit out a .gpx file which you can use with most mapping services. Check ExifTool documentation, especially format file (.fmt) section.
 
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ghita

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Once you have the data, you can format it however you like. I would suggest learning about shell scripts. Also, ExifTool can spit out a .gpx file which you can use with most mapping services. Check ExifTool documentation, especially format file (.fmt) section.
Thank you for your time
 

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