VRT Command Line Tools

Command line tools for packets following the ANSI/VITA 49.0 Radio Transport (VRT) standard.

Under development

Note that this project is still under development. It may not be well tested and may not have all features implemented.

Getting Started

Remember to clone submodules as well, with git clone --recurse-submodules ...

In project root folder (vrt_tools_cmd/):

mkdir Release
cd Release
cmake ..
make -j4
sudo make install

This installs a bunch of VRT command line tools.

VRT Print

Prints VRT packet information. For example:

vrt_print signal.vrt

May result in:

--------------------------------------------------------------------------------
#                                                                              0
Packet type                                IF Data packet with Stream Identifier
tsm                                                                         Fine
TSI                                                               None/Undefined
TSF                                                               None/Undefined
Packet count                                                                   0
Packet size [words]                                                          515
Stream ID                                                             0xDEADBEEF
Body size [words]                                                            512
Reference lock                                                              true
--------------------------------------------------------------------------------
#                                                                              1
Packet type                                IF Data packet with Stream Identifier
tsm                                                                         Fine
TSI                                                               None/Undefined
TSF                                                               None/Undefined
Packet count                                                                   0
Packet size [words]                                                          515
Stream ID                                                             0xDEADBEEF
Body size [words]                                                            512
Reference lock                                                              true
--------------------------------------------------------------------------------
...

VRT Split

Splits a VRT file into multiple depending on class ID and stream ID. For example, splitting a file signal.vrt containing a VRT packet stream with two different stream IDs 0xABABABAB and 0x12345678:

vrt_split signal.vrt

Results in output files signal_ABABABAB.vrt and signal_12345678.vrt with all packets from the original file with stream ID 0xABABABAB in the first and all packets with stream ID 0x12345678 in the second output file.

VRT Merge

Merges multiple VRT files into a single file and sorts them by time. Assumes packets in input files are ordered by time stamps.

VRT Length

Calculates number of packets and time difference for all different streams in a VRT packet file.

VRT Packet loss

Simulate packet loss by generating a file with some VRT packets missing.

VRT Socket

Send packets over a socket with the same time interval as suggested by packet timestamps in a VRT packet file.

Prerequisites

• C++17 compiler, such as GCC
• CMake
• Build system such as GNU Make
• (Google test framework, for the tests)

Author

Emil Berg

License

This project is licensed under the MIT License - see the LICENSE file for details