Inverse geotagging from NextBase dashcam footage

[jusw]

Hi Phil - would it be possible to add support for inverse geotagging (http://www.exiftool.org/geotag.html#GPX) from the NextBase range of dashcams (which are widely used in the UK)?  The model I use is the Nextbase 402G, which creates output in quicktime format (QTFF).  The tool gives me this:
$ exiftool -ee -p gpx.fmt 11500008.MOV > gpx.out
Warning: [Minor] Tag 'gpslatitude' not defined - 11500008.MOV
Warning: [Minor] Tag 'gpsaltitude' not defined - 11500008.MOV
Warning: [Minor] Tag 'gpsdatetime' not defined - 11500008.MOV
$

Basic tag data is:
$ exiftool 11500008.MOV
ExifTool Version Number         : 9.46
File Name                       : 11500008.MOV
Directory                       : .
File Size                       : 595 MB
File Modification Date/Time     : 2015:08:24 12:55:58+01:00
File Access Date/Time           : 2016:03:18 14:47:30+00:00
File Inode Change Date/Time     : 2015:12:26 11:56:07+00:00
File Permissions                : r--r--r--
File Type                       : MOV
MIME Type                       : video/quicktime
Major Brand                     : Apple QuickTime (.MOV/QT)
Minor Version                   : 0.0.0
Compatible Brands               : qt
Thumbnail Image                 : (Binary data 17608 bytes, use -b option to extract)
Movie Data Size                 : 624114456
Movie Data Offset               : 17648
Movie Header Version            : 0
Create Date                     : 2004:01:01 00:00:00
Modify Date                     : 2004:01:01 00:00:00
Time Scale                      : 30000
Duration                        : 0:05:00
Preferred Rate                  : 1
Preferred Volume                : 100.00%
Preview Time                    : 0 s
Preview Duration                : 0 s
Poster Time                     : 0 s
Selection Time                  : 0 s
Selection Duration              : 0 s
Current Time                    : 0 s
Next Track ID                   : 3
Track Header Version            : 0
Track Create Date               : 2004:01:01 00:00:00
Track Modify Date               : 2004:01:01 00:00:00
Track ID                        : 1
Track Duration                  : 0:05:00
Track Layer                     : 0
Track Volume                    : 0.00%
Image Width                     : 1920
Image Height                    : 1080
Graphics Mode                   : srcCopy
Op Color                        : 0 0 0
Compressor ID                   : avc1
Source Image Width              : 1920
Source Image Height             : 1080
X Resolution                    : 72
Y Resolution                    : 72
Compressor Name                 : h264
Bit Depth                       : 24
Video Frame Rate                : 30
Matrix Structure                : 1 0 0 0 1 0 0 0 1
Media Header Version            : 0
Media Create Date               : 2004:01:01 00:00:00
Media Modify Date               : 2004:01:01 00:00:00
Media Time Scale                : 32000
Media Duration                  : 0:05:00
Balance                         : 0
Handler Class                   : Data Handler
Handler Type                    : URL
Handler Description             : DataHandler
Audio Format                    : sowt
Audio Channels                  : 1
Audio Bits Per Sample           : 16
Audio Sample Rate               : 32000
Avg Bitrate                     : 16.6 Mbps
Image Size                      : 1920x1080
Rotation                        : 0
$

I can't find any info about which QTFF atoms the GPS data is embedded in the .MOV file but I was hoping there would be a way of extending exiftool to handle it? Could you let me know if this is on your road map, or perhaps we could discuss how to achieve it as I have example footage and coding experience (although not with QTFF)?

Thanks for the excellent piece of software.

Regards,
Justin

[Phil Harvey]

Hi Justin,

Adding the ability to extract GPS from MOV video streams has been on my to-do list for a while, but my first attempt failed and I haven't found the time to get back to it again.  Video formats in general are a real pain, but I have already decoded the GPS from the H264 video stream of M2TS files, and hoped that the H264 stream of MOV/MP4 files would be similar enough to make it easy to decode, but unfortunately this wasn't the case.  So it may be a while before this feature is added.

- Phil

[Phil Harvey]

ExifTool 10.72 (just released) has the ability to extract GPS from MOV/MP4 videos using the -ee option.  Please send me a sample if it doesn't extract it for your camera (philharvey66 at gmail.com).

- Phil

[Gelunox]

Hi, I found this page while searching for a way to decode Nextbase dashcam gps information. I'd like to add that on my device, the NextBase 512GW, gps data is stored in a tag called GPSDataList. Other than that the video file also has G-force acceleration data in it somewhere, but I wasn't able to figure out which tag that's under.

I'm posting this here should more people find it, Exiftool can only do part of the work and I can't for the love of me figure out how to interpret this data.

I ran with exiftool.exe -ee -u -b -GPSDataList dashcamfile.MOV > gps.txt and got the following output (converted to HEX because it's unreadable gibberish as normal text)

Code Select Expand

00 00 01 01 00 00 00 B4 00 42 4C 50 00 00 80 00 00 81 E5 C4 00 00 80 00 00 C1 F3 B4 00 00 80 00
01 01 A6 70 00 00 80 00 01 43 48 24 00 00 80 00 01 83 92 DC 00 00 80 00 01 C4 C5 34 00 00 80 00
02 03 7C 3C 00 00 80 00 02 42 C4 A8 00 00 80 00 02 85 0C 98 00 00 80 00 02 C2 2B 40 00 00 80 00
03 03 FD BC 00 00 80 00 03 44 C9 7C 00 00 80 00 03 84 73 6C 00 00 80 00 03 C4 08 10 00 00 80 00
04 03 76 28 00 00 80 00 04 42 E1 18 00 00 80 00 04 83 9A 20 00 00 80 00 04 C2 82 A8 00 00 80 00
05 02 30 10 00 00 80 00 05 41 4D 20 00 00 80 00 05 80 F7 24 00 00 80 00 05 C3 1C 8C 00 00 80 00
06 02 55 18 00 00 80 00 06 42 D9 58 00 00 80 00 06 82 06 50 00 00 80 00 06 C3 F7 B8 00 00 80 00
07 04 E4 B8 00 00 80 00 07 44 16 E0 00 00 80 00 07 82 1A 58 00 00 80 00 07 C3 3D A4 00 00 80 00
08 04 92 B8 00 00 80 00 08 43 81 1C 00 00 80 00 08 84 81 18 00 00 80 00 08 C4 77 50 00 00 80 00
09 04 E2 40 00 00 80 00 09 46 95 E4 00 00 80 00 09 84 01 B8 00 00 80 00 09 C3 CC DC 00 00 80 00
0A 05 97 78 00 00 80 00 0A 48 FC F0 00 00 80 00 0A 89 F8 7C 00 00 80 00 0A C8 43 CC 00 00 80 00
0B 06 A6 CC 00 00 80 00 0B 47 CB 10 00 00 80 00 0B 89 61 88 00 00 80 00 0B C7 89 10 00 00 80 00
0C 07 F4 A4 00 00 80 00 0C 45 03 EC 00 00 80 00 0C 89 20 1C 00 00 80 00 0C C9 19 BC 00 00 80 00
0D 09 5A 00 00 00 80 00 0D 48 69 5C 00 00 80 00 0D 88 93 A4 00 00 80 00 0D C9 E9 CC 00 00 80 00
0E 08 25 CC 00 00 80 00 0E 47 CC 04 00 00 80 00 0E 88 8C 00 00 00 80 00 0E C9 B9 50 00 00 80 00
0F 08 E3 B0 00 00 80 00 0F 4A 54 18 00 00 80 00 0F 89 3E BC 00 00 80 00 0F C9 5F 5C 00 00 80 00
10 09 86 C8 00 00 80 00 10 4A 03 AC 00 00 80 00 10 8A 44 B8 00 00 80 00 10 CA AA A4 00 00 80 00
11 0A F8 54 00 00 80 00 11 49 1B 7C 00 00 80 00 11 89 DF 80 00 00 80 00 11 CB 96 78 00 00 80 00
12 09 A0 BC 00 00 80 00 12 49 E9 80 00 00 80 00 12 8B 9E B4 00 00 80 00 12 CC 45 A4 00 00 80 00
13 0A B0 94 00 00 80 00 13 49 37 44 00 00 80 00 13 89 6A 80 00 00 80 00 13 CA 1B 60 00 00 80 00
14 09 9C 08 00 00 80 00 14 4B F4 80 00 00 80 00 14 8C A3 7C 00 00 80 00 14 CA 0C 08 00 00 80 00
15 0C ED A4 00 00 80 00 15 4B 99 70 00 00 80 00 15 8D 0A 1C 00 00 80 00 15 CC 7E 10 00 00 80 00
16 09 F9 40 00 00 80 00 16 4B 21 4C 00 00 80 00 16 8A CF 44 00 00 80 00 16 CD 59 F0 00 00 80 00
17 0C 66 58 00 00 80 00 17 4E BF F0 00 00 80 00 17 8E AD 10 00 00 80 00 17 CD 08 34 00 00 80 00
18 0D 94 14 00 00 80 00 18 4C 2D 08 00 00 80 00 18 8E 23 EC 00 00 80 00 18 CE 10 08 00 00 80 00
19 0D AC 80 00 00 80 00 19 4D 0B A0 00 00 80 00 19 8D 85 8C 00 00 80 00 19 CC D5 00 00 00 80 00
1A 0D 9C 44 00 00 80 00 1A 4E 0E 04 00 00 80 00 1A 8D 61 D0 00 00 80 00 1A CC A5 88 00 00 80 00
1B 0B 9D 60 00 00 80 00 1B 49 2C F4 00 00 80 00 1B 8C 28 F8 00 00 80 00 1B CA BE E8 00 00 80 00
1C 0B 64 60 00 00 80 00 1C 4B 81 1C 00 00 80 00 1C 8B 58 84 00 00 80 00 1C CB 00 A4 00 00 80 00
1D 0B 2C 10 00 00 80 00 1D 49 E2 58 00 00 80 00 1D 8A C8 D0 00 00 80 00 1D CB 42 EC 00 00 80 00
1E 0C A8 80 00 00 80 00 1E 4B 7E D8 00 00 80 00 1E 8B 1F 2C 00 00 80 00 1E CA B1 A8 00 00 80 00
1F 0C A9 C8 00 00 80 00 1F 4C 26 38 00 00 80 00 1F 8D AC 6C 00 00 80 00 1F CC A9 B8 00 00 80 00
20 0C A4 64 00 00 80 00 20 4D 93 A4 00 00 80 00 20 8E 1A CC 00 00 80 00 20 CE FC 6C 00 00 80 00
21 0F 46 BC 00 00 80 00 21 4E 2F A4 00 00 80 00 21 8E A6 78 00 00 80 00 21 CE DB FC 00 00 80 00
22 0D E8 5C 00 00 80 00 22 4E 11 F8 00 00 80 00 22 8D 3A CC 00 00 80 00 22 CD 60 6C 00 00 80 00
23 0C D6 EC 00 00 80 00 23 4F 83 18 00 00 80 00 23 8E AF C4 00 00 80 00 23 D0 8A 90 00 00 80 00
24 12 16 A4 00 00 80 00 24 52 3D EC 00 00 80 00 24 91 35 C8 00 00 80 00 24 D1 BB 2C 00 00 80 00
25 13 31 6C 00 00 80 00 25 52 E2 90 00 00 80 00 25 92 6A CC 00 00 80 00 25 D5 12 B0 00 00 80 00
26 11 57 4C 00 00 80 00 26 51 9D C8 00 00 80 00 26 94 1D 00 00 00 80 00 26 D2 65 74 00 00 80 00
27 10 E9 FC 00 00 80 00 27 54 46 24 00 00 80 00 27 94 2C 48 00 00 80 00 27 D4 04 3C 00 00 80 00
28 13 44 FC 00 00 80 00 28 53 22 D8 00 00 80 00 28 91 FC C4 00 00 80 00 28 D3 20 44 00 00 80 00
29 12 9D 6C 00 00 80 00 29 52 43 D8 00 00 80 00 29 95 4A 44 00 00 80 00 29 D3 80 F0 00 00 80 00
2A 13 AE BC 00 00 80 00 2A 55 82 E8 00 00 80 00 2A 94 D2 80 00 00 80 00 2A D5 B0 B0 00 00 80 00
2B 14 18 7C 00 00 80 00 2B 54 0B A4 00 00 80 00 2B 93 EC FC 00 00 80 00 2B D4 DE 20 00 00 80 00
2C 15 50 DC 00 00 80 00 2C 56 6D 3C 00 00 80 00 2C 94 0E 74 00 00 80 00 2C D4 C2 B8 00 00 80 00
2D 14 96 7C 00 00 80 00

First few coordinates + timestamp (I have it so they're also printed on screen, which is how I know):

• N52º7'55" E5º5'29" - 10:09:59 (video start)
• N52º7'54" E5º5'31" - 10:10:00 (1 second into the video)
• N52º7'54" E5º5'32" - 10:10:01 (2 seconds into the video)
• N52º7'53" E5º5'33" - 10:10:02
• N52º7'53" E5º5'34" - 10:10:03
• N52º7'52" E5º5'36" - 10:10:04

Hope this helps anyone.

[Phil Harvey]

Could you email me a (small) sample?  philharvey66 at gmail.com

I should be able to add support for this.  I don't remember now how I knew to name that tag GPSDataList, but since it isn't decoded I probably never had a sample.  It looks to me like a list of offsets and sizes for the GPS data, but once extracted they would need decoding as well.

- Phil

[Phil Harvey]

Yes.  This is different than I have seen before.  ExifTool 11.12 will extract the GPS from this file.  It is stored as an NMEA-formatted string that you can see with exiftool -ee -v4.

- Phil

[Gelunox]

That's awesome!

I see an extract embedded with Type='gps ', Sample 1 of 180 (179 more of those) and also an extract embedded + [GPS directory, 32768 bytes] (also 180 times)

How would I go about extracting this data RAW? The documentation sadly isn't making me any wiser on how to do this.

[Phil Harvey]

ExifTool 11.12 will extract and decode this information.

To extract it in raw form, you would have to decode the GPSDataList table, which is a table of unsigned 32-bit big-endian integers of starting offsets and lengths for the "freeGPS" data blocks.  Alternatively you could do a brute-force scan of the movie data for the "freeGPS" strings at the beginning of each block.

- Phil

[Gelunox]

Allright, supercool, I've written this small prototype script in Java to extract all the gps coordinates from the video after extracting the GPSDataList with exiftool, still figuring out how to read this metadata directly with Java:

Code (Java) Select Expand

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.List;

public class Reader {
public static void main(String[] args) throws IOException {
File movie = new File("E:\\Exiftool\\gps.MOV");
File pointers = new File("E:\\Exiftool\\GPSDataList.txt");

List<Long> data = new ArrayList<>();


//read the GPSDataList data containing all the pointers
try(FileInputStream fin = new FileInputStream(pointers))
{
fin.skip(16); //skip the first two numbers, not relevant

while(fin.available() > 0)
{
data.add(readUIntAsLong(fin));
}
}

List<String> gpsData = new ArrayList<>();

long skipped = 0;

try(FileInputStream fin = new FileInputStream(movie))
{
for(int i=0; i<data.size(); i+=2)
{
long skip = data.get(i);
int read = data.get(i+1).intValue();

long skipsize = skip - skipped;

fin.skip(skipsize);
skipped += skipsize + read;

byte[] buff = new byte[read];

fin.read(buff, 0, buff.length);

gpsData.add(new String(buff, StandardCharsets.UTF_8));
}
}

//cleanup data and print to console
gpsData.stream()
.map(s -> s.replaceAll("\\x0d\\x0a", " "))
.map(s -> s.replaceAll("[^\\x20-\\x7E]+", ""))
.forEach(System.out::println);
}

public static long readUIntAsLong(InputStream i) throws IOException
{
return 0
| ((i.read() & 0xFF) << 24)
| ((i.read() & 0xFF) << 16)
| ((i.read() & 0xFF) << 8)
| (i.read() & 0xFF);
}
}

[Phil Harvey]

In case it helps, here is my Perl code to decode this block (pointed to by $dataPt):

Code Select Expand


    my ($hr,$min,$sec,$yr,$mon,$day,$stat,$latRef,$lonRef,$lat,$lon,$spd,$trk,$alt,$lbl,@acc,@xtra);
    if ($$dataPt =~ /^.{52}(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})/) {
        # decode NMEA-format GPS data (NextBase 512GW dashcam, ref PH)
        push @xtra, CameraDateTime => "$1:$2:$3 $4:$5:$6";
        if ($$dataPt =~ /\$[A-Z]{2}RMC,(\d{2})(\d{2})(\d+(\.\d*)?),A?,(\d+\.\d+),([NS]),(\d+\.\d+),([EW]),(\d*\.?\d*),(\d*\.?\d*),(\d{2})(\d{2})(\d+)/s) {
            ($lat,$latRef,$lon,$lonRef) = ($5,$6,$7,$8);
            $yr = $13 + ($13 >= 70 ? 1900 : 2000);
            ($mon,$day,$hr,$min,$sec) = ($12,$11,$1,$2,$3);
            $spd = $9 * $knotsToKph if length $9;
            $trk = $10 if length $10;
        }
        if ($$dataPt =~ /\$[A-Z]{2}GGA,(\d{2})(\d{2})(\d+(\.\d*)?),(\d+\.\d+),([NS]),(\d+\.\d+),([EW]),[1-6]?,(\d+)?,(\.\d+|\d+\.?\d*)?,(-?\d+\.?\d*)?,M?/s) {
            ($hr,$min,$sec,$lat,$latRef,$lon,$lonRef) = ($1,$2,$3,$5,$6,$7,$8) unless defined $yr;
            $alt = $11;
            unshift @xtra, GPSSatellites => $9;
            unshift @xtra, GPSDOP => $10;
        }
        if (defined $lat) {
            # extract accelerometer readings if GPS was valid
            @acc = unpack('x68V3', $$dataPt);
            # change to signed integer and divide by 256
            map { $_ = $_ - 4294967296 if $_ >= 2147483648; $_ /= 256 } @acc;
        }
    }

- Phil

[Phil Harvey]

ExifTool 11.12 is now available.

- Phil

[zubairlk]

Hi,

I have a Nextbase 512G. (not GW).
I tried to use exiftool to extract gps data from a video using

Code Select Expand

./exiftool -ee -v4 ../2018_1007_085054_198.MOV > gps.txt

And I do see it. In the 2 minute clip, the gps.txt file contains 120 mentions of freeGPS like the following

Code Select Expand


---- Extract Embedded ----                                                                                                                                                               
  + [GPS directory, 32768 bytes]                                                                                                                                                         
  |   210000: 00 00 80 00 66 72 65 65 47 50 53 20 78 01 00 00 [....freeGPS x...]                                                                                                         
  |   210010: 78 2e 78 78 00 00 00 00 00 00 00 00 00 00 00 00 [x.xx............]                                                                                                         
  |   210020: 30 30 30 30 30 00 00 00 00 00 00 00 00 00 00 00 [00000...........]                                                                                                         
  |   210030: 24 53 03 a2 2e 29 07 e2 0a 07 08 32 02 22 02 20 [$S...).....2.". ]                                                                                                         
  |   210040: 10 56 68 ff 10 f8 59 10 00 00 00 00 00 00 00 00 [.Vh...Y.........]                                                                                                         
  |   210050: 24 53 03 79 2d d2 07 e2 0a 07 08 32 02 23 02 20 [$S.y-......2.#. ]                                                                                                         
  |   210060: 10 56 49 ff 10 f8 d1 10 00 00 00 00 00 00 00 00 [.VI.............]                                                                                                         
  |   210070: 24 53 03 85 2d 9d 07 e2 0a 07 08 32 02 24 02 20 [$S..-......2.$. ]                                                                                                         
  |   210080: 10 56 28 ff 10 f9 4b 10 00 00 00 00 00 00 00 00 [.V(...K.........]                                                                                                         
  |   210090: 24 53 03 77 2d 47 07 e2 0a 07 08 32 02 25 02 20 [$S.w-G.....2.%. ]                                                                                                         
  |   2100a0: 10 56 0a ff 10 f9 c4 10 00 00 00 00 00 00 00 00 [.V..............]                                                                                                         
  |   2100b0: 24 53 03 73 2d 1e 07 e2 0a 07 08 32 02 26 02 20 [$S.s-......2.&. ]                                                                                                         
  |   2100c0: 10 55 eb ff 10 fa 3e 10 00 00 00 00 00 00 00 00 [.U....>.........]                                                                                                         
  |   2100d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [................]                                                                                                         
  |   2100e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [................]                                                                                                         
  |   2100f0: 24 53 03 51 2b 82 07 e2 0a 07 08 32 02 2a 02 20 [$S.Q+......2.*. ]                                                                                                         
  |   210100: 10 55 a4 ff 10 fc 2e 10 00 00 00 00 00 00 00 00 [.U..............]                                                                                                         
  |   210110: 24 53 03 3b 2b 18 07 e2 0a 07 08 32 02 2b 02 20 [$S.;+......2.+. ]                                                                                                         
  |   210120: 10 55 9a ff 10 fc ac 10 00 00 00 00 00 00 00 00 [.U..............]                                                                                                         
  |   210130: 24 53 03 4d 2a 96 07 e2 0a 07 08 32 02 2c 02 20 [$S.M*......2.,. ]                                                                                                         
  |   210140: 10 55 90 ff 10 fd 26 10 00 00 00 00 00 00 00 00 [.U....&.........]                                                                                                         
  |   210150: 24 53 03 3b 2a 05 07 e2 0a 07 08 32 02 2d 02 20 [$S.;*......2.-. ]                                                                                                         
  |   210160: 10 55 88 ff 10 fd a0 10 00 00 00 00 00 00 00 00 [.U..............]                                                                                                         
  |   210170: fb 00 00 00 ee 00 00 00 01 00 00 00 00 00 00 00 [................]                                                                                                         
  |   210180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [................]                                                                                                         
  |   210190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [................]                                                                                                         
  |   2101a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [................]                                                                                                         
  |   2101b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [................]                                                                                                         
  |   2101c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [................]                                                                                                         
  |   2101d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [................] 


Am I missing a flag to make this output slightly more human readable?
Attached to whole txt file if it helps.

Thanks

Regards
ZubairLK

p.s. awesome tool btw.

[Phil Harvey]

... yet another different "freeGPS" format.  Please send me a (small) sample video from a moving camera and I'll see about decoding this too (philharvey66 at gmail.com).  There seems to be no standardization at all in these formats.

- Phil

[Phil Harvey]

OK.  I can decode date/time, lat, lon and speed, but there is one value that I don't understand.  Here is the extracted value with timestamps as hex, unsigned and signed integer.  Any ideas what this could be?

Code Select Expand

2018:10:08 06:42:46.0 d60c 54796 -10740
2018:10:08 06:42:46.0 d60c 54796 -10740
2018:10:08 06:42:47.0 d2f1 54001 -11535
2018:10:08 06:42:46.0 d60c 54796 -10740
2018:10:08 06:42:48.0 d223 53795 -11741
2018:10:08 06:42:49.0 d221 53793 -11743
2018:10:08 06:42:50.0 d1be 53694 -11842
2018:10:08 06:42:51.0 d1e3 53731 -11805
2018:10:08 06:42:52.0 d1be 53694 -11842
2018:10:08 06:42:53.0 d1ff 53759 -11777
2018:10:08 06:42:54.0 d2d9 53977 -11559
2018:10:08 06:42:55.0 d963 55651 -9885
2018:10:08 06:42:56.0 e3f5 58357 -7179
2018:10:08 06:42:57.0 eee3 61155 -4381
2018:10:08 06:42:58.0 f55a 62810 -2726
2018:10:08 06:42:59.0 f675 63093 -2443
2018:10:08 06:43:00.0 f65a 63066 -2470
2018:10:08 06:43:01.0 f591 62865 -2671
2018:10:08 06:43:02.0 f49c 62620 -2916
2018:10:08 06:43:03.0 f42f 62511 -3025
2018:10:08 06:43:04.0 f504 62724 -2812
2018:10:08 06:43:05.0 f5fe 62974 -2562
2018:10:08 06:43:06.0 f71e 63262 -2274
2018:10:08 06:43:07.0 f560 62816 -2720
2018:10:08 06:43:08.0 f8a2 63650 -1886
2018:10:08 06:43:09.0 f8a2 63650 -1886
2018:10:08 06:43:10.0 f8a2 63650 -1886
2018:10:08 06:43:11.0 f8a2 63650 -1886
2018:10:08 06:43:12.0 f8a2 63650 -1886
2018:10:08 06:43:13.0 f8a2 63650 -1886
2018:10:08 06:43:14.0 f8a2 63650 -1886
2018:10:08 06:43:15.0 f8a2 63650 -1886
2018:10:08 06:43:16.0 f8a2 63650 -1886
2018:10:08 06:43:17.0 f8a2 63650 -1886
2018:10:08 06:43:18.0 f8a2 63650 -1886
2018:10:08 06:43:19.0 f8a2 63650 -1886
2018:10:08 06:43:20.0 f8a2 63650 -1886
2018:10:08 06:43:21.0 f8a2 63650 -1886
2018:10:08 06:43:22.0 f8a2 63650 -1886
2018:10:08 06:43:23.0 f8a2 63650 -1886
2018:10:08 06:43:24.0 f8a2 63650 -1886
2018:10:08 06:43:25.0 f8a2 63650 -1886
2018:10:08 06:43:26.0 f8a2 63650 -1886
2018:10:08 06:43:27.0 f8a2 63650 -1886
2018:10:08 06:43:28.0 f8a2 63650 -1886
2018:10:08 06:43:29.0 f8a2 63650 -1886
2018:10:08 06:43:30.0 f8a2 63650 -1886
2018:10:08 06:43:31.0 f8a2 63650 -1886
2018:10:08 06:43:32.0 f8a2 63650 -1886
2018:10:08 06:43:33.0 f8a2 63650 -1886
2018:10:08 06:43:34.0 f8a2 63650 -1886
2018:10:08 06:43:35.0 f8a2 63650 -1886
2018:10:08 06:43:36.0 f8a2 63650 -1886
2018:10:08 06:43:37.0 f514 62740 -2796
2018:10:08 06:43:38.0 f57d 62845 -2691
2018:10:08 06:43:39.0 f62f 63023 -2513
2018:10:08 06:43:40.0 f8e8 63720 -1816
2018:10:08 06:43:41.0 fed0 65232 -304
2018:10:08 06:43:42.0 037e 894 894
2018:10:08 06:43:43.0 0b33 2867 2867
2018:10:08 06:43:44.0 0dcc 3532 3532
2018:10:08 06:43:45.0 0eec 3820 3820
2018:10:08 06:43:46.0 0f09 3849 3849
2018:10:08 06:43:47.0 0f4f 3919 3919
2018:10:08 06:43:48.0 0ee7 3815 3815
2018:10:08 06:43:49.0 0ef2 3826 3826
2018:10:08 06:43:50.0 0ebd 3773 3773
2018:10:08 06:43:51.0 0f31 3889 3889
2018:10:08 06:43:52.0 0f63 3939 3939
2018:10:08 06:43:53.0 0e32 3634 3634
2018:10:08 06:43:54.0 06b6 1718 1718
2018:10:08 06:43:55.0 fab9 64185 -1351
2018:10:08 06:43:56.0 ed97 60823 -4713
2018:10:08 06:43:57.0 ea8b 60043 -5493
2018:10:08 06:43:58.0 eb94 60308 -5228
2018:10:08 06:43:59.0 ec9d 60573 -4963
2018:10:08 06:44:00.0 ed93 60819 -4717
2018:10:08 06:44:01.0 ec59 60505 -5031
2018:10:08 06:44:02.0 ec3e 60478 -5058
2018:10:08 06:44:03.0 ef90 61328 -4208
2018:10:08 06:44:04.0 f4fe 62718 -2818
2018:10:08 06:44:05.0 f9af 63919 -1617
2018:10:08 06:44:06.0 0478 1144 1144
2018:10:08 06:44:07.0 0c87 3207 3207
2018:10:08 06:44:08.0 0e30 3632 3632
2018:10:08 06:44:09.0 0e66 3686 3686
2018:10:08 06:44:10.0 0d54 3412 3412
2018:10:08 06:44:11.0 0b66 2918 2918
2018:10:08 06:44:12.0 08ba 2234 2234
2018:10:08 06:44:13.0 0630 1584 1584
2018:10:08 06:44:14.0 02fa 762 762
2018:10:08 06:44:15.0 fa7a 64122 -1414
2018:10:08 06:44:16.0 ef29 61225 -4311
2018:10:08 06:44:17.0 e88f 59535 -6001
2018:10:08 06:44:18.0 e6f6 59126 -6410
2018:10:08 06:44:19.0 e642 58946 -6590
2018:10:08 06:44:20.0 e5ef 58863 -6673
2018:10:08 06:44:21.0 e5e6 58854 -6682
2018:10:08 06:44:22.0 e5e6 58854 -6682
2018:10:08 06:44:23.0 e5f3 58867 -6669
2018:10:08 06:44:24.0 e556 58710 -6826
2018:10:08 06:44:25.0 e4f5 58613 -6923
2018:10:08 06:44:26.0 e431 58417 -7119
2018:10:08 06:44:27.0 e3ea 58346 -7190
2018:10:08 06:44:28.0 e3e4 58340 -7196
2018:10:08 06:44:29.0 e2de 58078 -7458
2018:10:08 06:44:30.0 e1c2 57794 -7742
2018:10:08 06:44:31.0 e0ec 57580 -7956
2018:10:08 06:44:32.0 df54 57172 -8364
2018:10:08 06:44:33.0 de47 56903 -8633
2018:10:08 06:44:34.0 dda4 56740 -8796
2018:10:08 06:44:35.0 dc9e 56478 -9058
2018:10:08 06:44:36.0 dbb6 56246 -9290
2018:10:08 06:44:37.0 da6a 55914 -9622
2018:10:08 06:44:38.0 d9c9 55753 -9783
2018:10:08 06:44:39.0 d8fe 55550 -9986
2018:10:08 06:44:40.0 d7f1 55281 -10255
2018:10:08 06:44:41.0 d5fc 54780 -10756
2018:10:08 06:44:42.0 d4ad 54445 -11091
2018:10:08 06:44:43.0 d45d 54365 -11171
2018:10:08 06:44:44.0 d3c0 54208 -11328

Also, does the video start at 06:42 local time, or UTC?

- Phil

[zubairlk]

I took a look at the video sample at the timestamps that jump. e.g. 06:43:42.0 06:43:55.0
The car is turning. So I guess this could be compass data.

Should I try to decipher what north is based on the footage for a calibration?

Thanks!

Regards
ZubairLK