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Open source package for extracting and parsing telemetry associated with video streams and converting to common formats.

Project description

Open Telemetry Kit

Image of Open Telemetry Kit

The Open Telemetry Kit (OTK) is an open source package for extracting and parsing telemetry associated with video streams and converting to common formats. It comes out of a need for a singular API that can be used for multiple different video telemetry formats.

Telemetry that can be parsed includes: GPS, time, camera information, speed


  • Automatically detect telemetry format
  • Manipulate telemetry with ease
  • Write telemetry to a new format

Getting Started


Python version: >=3.6

ffmpeg and ffprobe.

On Debian systems these can be installed with:

$ sudo apt install ffmpeg


On Debian systems this can be installed with:

$ pip3 install python-dateutil


$ pip3 install open-telemetry-kit


The OTK package can be imported into your python3 project with:

import open_telemetry_kit as otk

Quick Start

For an example of OTK usage you can download the OTK quickstart package (~90 MB). This includes a sample .csv, .srt, and .mov with embedded telemetry. It also contains which you can use to extract the telemetry from the sample files. (Mac users can install wget using these instructions)

$ wget

Extract the package:

$ tar xvf OTK_quickstart.tgz

This will extract everythin into a new directory called OTK_quickstart/

The script accepts a standalone .csv or .srt or a video file with an embedded .srt. It will read in the data, convert it to JSON, and write it to the provided destination.

From the new OTK_quickstart directory, you can execute the script via one of the following commands.

To extract telemetry from the sample video:

$ python3 embedded_srt_example.json

Note: Because the telemetry is embedded, this script will create a metadata.json file and extract the data into [video_name].srt. This will not happen with standalone telemetry files like in the examples below.

To extract telemetry from the sample srt or csv files respectively:

$ python3 srt_example.json

$ python3 csv_example.csv csv_example.json

This process will create a new JSON file containing the telemetry extracted from the sample file. The data is organized into an array of objects (or, in python terminology, a list of dictionaries)

For an example of simple data manipulation, open and uncomment the lines:

# gps = Telemetry()
# for packet in telemetry:
#   gps.append({ k:v for k, v in packet.items() if k in ['latitude', 'longitude', 'altitude']})

# write.telemetryToJson(gps, dest)

Then rerun the script with one of the provided commands.

Current Functionality

Input Formats

The OTK currently supports the following forms of telemetry:

  • .csv files
  • .srt files
  • Any video file with embedded telemetry encoded as a .srt (e.g. video taken with some DJI drone models)

Output Formats

  • JSON

Future Releases

Planned expansions and updates for the OTK include:

Input Formats

  • .kml
  • .gpx
  • KLV/MISB embedded data

Output Formats

  • geoJSON


  • Logging
  • Error checking
  • Unit Tests

Project details

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Files for open-telemetry-kit, version 0.1.2
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