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    Interesting failure of an A119S (v2).

    Awesome! The one variable that allowed me to fix this camera is the <= 32GB card. I have tried with 128GB and that didn't work. It looks like the camera is restored, thank you for the suggestion! I went down the rabbit hole of disassembling the camera and removing the shield from the SoC...
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    Interesting failure of an A119S (v2).

    One of my A119S (v2) cameras died and this is beyond normal dead RTC battery I usually deal with. auto It boots up with Viofo Logo, it plays the boot up sound, It beeps on key presses. It even shows the "Insert TF Card" message when it booted up without the SDCard. It does not show up as USB...
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    Beware: Viofo MT1 GMT+13 bug that could cause missing video.

    A bit of an update: VIOFO support refunded me the shipping cost and provided with the updated firmware that resolves the issue. Thank you @VIOFO-Support
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    Beware: Viofo MT1 GMT+13 bug that could cause missing video.

    I have bought Viofo MT1 almost a year ago, due to bad weather here I wasn't riding much, thus there was no reason for me to check the footage. I have superficially checked the video recording at the installation (yes it records), and never gave another thought. Until couple of months ago I...
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    Script to extract GPS Data from Novatek MP4

    Probably no GPS data or incompatible GPS data format? It is hard to tell without looking at the file.
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    Script to extract GPS Data from Novatek MP4

    I do it all the time, but I use mkvmerge --split parts:X:XX-Y:YYY from CLI I find it easier then the GUI counterpart (which exists). But again CLI is my bread and butter so I am way more comfortable then a regular Joe or even causal Linux user.
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    Script to extract GPS Data from Novatek MP4

    It was Ivan Sutherland who came up with idea and Xerox who refined it. GUI has its place, but in fact CLI is way more powerful for a lot of tasks. There is a reason why Microsoft made "search" prominent in their "Windows" menu. So now you are given option of either navigating the menu via GUI...
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    Script to extract GPS Data from Novatek MP4

    I have fixed the script with addition of Azdome GPS data parser. It is the same script. One note that the speed accuracy is compromised due to value stored is truncated at the decimal point (they do equivalent to int(speed)), eg 10.64 becomes 10. I guess good enough for cars. I still haven't...
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    Script to extract GPS Data from Novatek MP4

    I "cracked" it. It is XOR cipher with key 0xAA. 002974c0 54 54 98 9a 9b 92 9a 9e 9b 9f 9b 9b 99 9b 98 92 |TT..............| Translates to: 20180415113128 UPDATE: I can get meaningful data out of this, basically it is ASCII string encoded with XOR (key:0xAA). I am not entirely sure about...
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    Script to extract GPS Data from Novatek MP4

    Thanks Viofo for being more open than others.
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    Script to extract GPS Data from Novatek MP4

    I am looking at your file and the GPS data is in completely different format to what it used to be. Why Chinese manufacturers are doing this stuff is beyond me, it is borderline malicious.... Don't they understand the more "standard" this stuff is the more adoption there is? This is second...
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    Script to extract GPS Data from Novatek MP4

    I will need a sample as I bet there are 180 GPS samples of ~ 180second long video (or close) and their format has changed again. You could probably share it with me via google drive.
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    Script to extract GPS Data from Novatek MP4

    How often ""Skipping: garbage data. Error:" is print out?
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    Script to extract GPS Data from Novatek MP4

    I have put some exception handling around, could you please try again? I suspect it will not work (as in GPX file will be either empty or contain garbage) as they have weird stuff in the GPS data.
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    Script to extract GPS Data from Novatek MP4

    Are you sure you have new version of the script? Open the script in a text editor and see if it has "except UnicodeDecodeError:" on line 80. Ahh, I see they have garbage in "active"... Let me think of a quick fix.
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    Script to extract GPS Data from Novatek MP4

    I have fixed the script to handle weird atoms (it just skips them now). Let me know if you still have issues. Slightly offtopic I had someone contact me about Soocoo S100 Pro camera that records GPS coordinates in weird format that I cannot correlate to anything real. This particular camera...
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    FOXOFFER: Stop putting "Lithium Ion" on all boxes!

    Dear foxoffer.com! I bought 3 A119 Cameras V1 via UK stock as intention of getting them to NZ via freight forward service. For really stupid reason you slapped "Lithium Ion" on the box which flagged it as prohibited item. Why do I use freight forward from UK instead sending it directly...
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    Script to extract GPS Data from Novatek MP4

    Apparently for windows users there is a thing called py2exe (http://www.py2exe.org/) but you need windows installation to make an exe out of python script. That could be an alternative... Windows is horrible ;).
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    Script to extract GPS Data from Novatek MP4

    I just realised that you can wrap my script with a batch script so it will be more windows friendly. C:\Python35\python.exe C:\Users\dan\Documents\dashcam\A119\nvtk_mp42gpx.py %* pause replace the paths to reflect your system. call it something like nvtk_mp42gpx.bat or whatever you like and run...
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    Script to extract GPS Data from Novatek MP4

    Try this: C:\Python35\python.exe C:\Users\dan\Documents\dashcam\A119\nvtk_mp42gpx.py -i 2016_1206_191052_032.mp4 -o 2016_1206_191052_032.gpx Replace C:\Python35\python.exe with your python path (where you installed python into). I don't have windows to test with, but I see no reason why the...
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