julx134/klvovermpegtsextractor

KLV Over MPEG-TS Extractor

Extract MISB 601 KLV data from MPEG-TS stream (STANAG 4609).

Credit

KLV Data is adapted from https://github.com/paretech/klvdata.

The code changes include the following:

• Ignore errors (write -1000 or -2000 as value).
• Output readable value when printing structure.
• Adding CRC validation to packet.

Implementation

MPEG-TS extraction is partly implemented, many unneeded fields are not extracted.
Packet ID extraction doesn't seem to be correct when comparing to FFMPEG.

The code is exposed a CLI but can be used as a package to extract KLV data.

Getting Started

Clone the repository.
Use an IDE such as PyCharm.
Create a virtual environment fro the project using python 3.6+.
No additional dependencies are required.

Extracting KLV

The code can run on entire MPEG-TS file or extracted KLV binary file.
The extract KLV binary use the following:

• Using tool such as ffprobe get the mapping of KLV stream, e.g. 0:3
• Using tool such as ffmpeg copy the KLV stream to file, e.g.:

  ffmpeg -i [video-name].ts -map 0:3 -c copy -f data [video-name].klv

Usage

run.py is a CLI for parsing klv/mpeg-ts files.
As output can be large, depending on input file, it is advised to pipe to log file.

KLV binary file

python run.py -f [file.klv] -k

MPEG-TS video file

python run.py -f [file.ts]