start time of video on Garmin VFAT camera

Adam Funk a24061 at
Fri Jan 22 12:09:43 UTC 2016

On 2016-01-20, David Fletcher wrote:

> On Wed, 2016-01-20 at 14:02 +0000, Adam Funk wrote:
>> What I want to do now is write something in bash or python to copy
>> files off the camera but rename the destination file to include the
>> start time of the recording.  From looking at the `stat` output on the
>> files, I get the impression that the "change" timestamp could well be
>> when the recording started & the "modify" one could be when it
>> finished.  Has anyone else corroborated this sort of thing?
> This is what I wrote some years ago to to just this with raw files from
> my camera, etc:-
> #!/bin/bash
> # Use the ls command to output the date and time stamp of each file
> # and awk to pick out the date and time string and the filename
> for datetimefilename in $(ls --time-style=+%Y%m%d%H%M%S -l *.jpg *.JPG
> *.RAF *.PEF *.AVI *.WAV | awk '{ print $6$7 }')
> do
>   echo $datetimefilename
> # Split off the file name so that I can use it for the rename operation
>   origfilename=${datetimefilename:14}
>   echo $origfilename
>   mv $origfilename t$datetimefilename
> done

For JPG files, the jhead command has options to rename based on the
Exif timestamp (more reliable than the file timestamp).

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