GstInference and TensorRT backend

GstInference
Introduction
Getting started
Getting the code Building the plugin Quick Starting Guide
Supported architectures
InceptionV1 InceptionV2 InceptionV3 InceptionV4 TinyYoloV2 TinyYoloV3 YoloV2 ResNetV1 MobileNetV2 MobileNetV2 + SSD AlexNet
Supported backends
TensorFlow Tensorflow-Lite Coral from Google Caffe TensorRT ONNXRT ONNXRT ACL ONNXRT OpenVINO
Metadata and Signals
GstClassificationMeta GstInferenceMeta Signals
Overlay Elements
Inference Overlay
Utils Elements
InferenceFilter InferenceCrop InferenceDebug InferenceBin
Legacy pipelines
PC NANO TX2 Xavier IMX8
Example pipelines
Example applications
Classification Detection Hand Pose Recognition
Benchmarks
Model Zoo
Project Status
Releases Roadmap
Contact Us

NVIDIA TensorRT™ is an SDK for high-performance deep learning inference. It includes a deep learning inference optimizer and runtime that delivers low latency and high-throughput for deep learning inference applications. TensorRT is built on CUDA, NVIDIA's parallel programming model, and enables you to optimize inference for all deep learning frameworks leveraging libraries, development tools, and technologies in CUDA-X for artificial intelligence, autonomous machines, high-performance computing, and graphics.

To use the TensorRT backend on Gst-Inference be sure to run the R2Inference configure with the flag -Denable-tensorrt=true . Then, use the property backend=tensorrt on the Gst-Inference plugins. GstInference depends on the C++ API of TensorRT.

Installation

GstInference depends on the C++ API of TensorRT. For installation steps, follow the steps in R2Inference/Building the library section.

TensorRT python API and utilities can be installed following the official guide, but it is not needed by GstInference.

Enabling the backend

To enable TensorRT as a backend for GstInference you need to install R2Inference with TensorRT. To do this, use the option -Denable-tensorrt=true while following this wiki

Properties

TensorRT API Reference has full documentation of the TensorRT C++ API. Gst-Inference uses only the C++ API of TensorRT and R2Inference takes care of devices and loading the models.

The following syntax is used to change backend options on Gst-Inference plugins:

backend::<property>

For example to change the backend to use Tensorflow-Lite with the inceptionv4 plugin you need to run the pipeline like this:

gst-launch-1.0 \
tinyyolov2 name=net backend=tensorrt model-location=graph_tinyyolov2.trt  \
filesrc location=video_stream.mp4 ! decodebin ! nvvidconv ! "video/x-raw" ! tee name=t \
t. ! queue ! videoconvert ! videoscale !  net.sink_model \
t. ! queue ! videoconvert ! "video/x-raw,format=RGB" ! net.sink_bypass \
net.src_bypass ! perf ! queue ! inferencedebug ! inferenceoverlay ! fakesink