Note

This C++ sample has a corresponding Python sample.

CSV Viewer Sample using C++

The sample metavision_csv_viewer.cpp shows how to use Metavision SDK pipeline utility to read and display events from a CSV formatted event-based file (e.g. CSV file produced by File to CSV Sample). It also shows how to create a class deriving from Metavision::BaseStage that produces data but consumes nothing.

The source code of this sample can be found in <install-prefix>/share/metavision/sdk/core/cpp_samples/metavision_adaptive_rate when installing Metavision SDK from installer or packages. For other deployment methods, check the page Path of Samples.

Expected Output

The sample visualizes CD events read from a CSV file:

How to start

First, compile the sample as described in this tutorial.

To start the sample based on recorded data, provide the full path to a CSV file (for example, a RAW file from our Sample Recordings converted to CSV format using the metavision_file_to_csv sample):

Linux

./metavision_csv_viewer -i FILE_NAME.csv

Windows

metavision_csv_viewer.exe -i FILE_NAME.csv

To check for additional options:

Linux

./metavision_csv_viewer -h

Windows

metavision_csv_viewer.exe -h

Code Notes

The code of this sample is explained in the page Building a Pipeline with a Custom Stage within the chapter on pipelines.