GStreamer Buffer Synchronization: Basics and foundation - Applications

GStreamer Buffer Synchronization Applications

The GStreamer Buffer Synchronization consists of a library + a GStreamer plug-in for synchronizing sensors:

Library

The Buffer Synchronization library is a sensor-agnostic framework to synchronise multiple sensor data. Within the sensor data, it is possible to synchronise accelerometer, gyroscope, camera, radar, and lidar data.

The library is written in C++ 17, allowing easy integration with the most common frameworks, such as GStreamer, NVIDIA Holoscan, and other custom applications compatible and linkable with C++.

Some of the features of the library:

Same-rate sensor synchronization
C++ integrable
Lightweight
No additional dependencies needed.
Different-rate sensor synchronization (coming soon)
Modes:
- Nearest neighbors (closest to time)
- Interpolation / data generation (coming soon)

GStreamer Element

The Buffer Synchronization library has been extended to support GStreamer as a plug-in to provide support for isochronous sensor synchronization (same data rate). It has the following features:

Queue limit: limit how many buffers to store
Modes: same as the library
Multi-pad: similar to GStreamer's multiqueue
Latency and proper clock handling
Compatible with most memory types (NVMM and system memory)

Applications

The Buffer Synchronization Library can be used in the following applications, not limited to:

Video stitching
Birds-eye-view
Multi-sensor applications like Electronic Video Stabilization.
LiDar and Radar applications.
Sensor fusion.

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