.. _DS_plugin_nvjpegdec:

Gst-nvjpegdec
===============

The Gst-nvjpegdec plugin decodes images on both dGPU and Jetson platforms. It is the preferred method for decoding JPEG images.
On the dGPU platform this plugin is based on the ``libnvjpeg`` library, part of the CUDA toolkit. On Jetson it uses a platform-specific hardware accelerator.
The plugin uses an internal software parser to parse JPEG streams. Thus, there is no need to use a ``jpegparse`` open source plugin separately to parse the encoded frame.
The plugin accepts a JPEG encoded bitstream and produces RGBA output on the dGPU platform and produces I420 output on the Jetson platform.

Inputs and Outputs
--------------------

* Inputs

  *	Elementary JPEG

* Control parameters
  
  *	gpu-id (dGPU only)
  *	DeepStream (Jetson only)

* Output

  *	Gst Buffer with decoded output in RGBA format for dGPU, and I420 format for Jetson

Features
--------

The following table summarizes the features of the Gst-nvjpegdec plugin.

.. csv-table:: Gst-nvjpegdec plugin features 
  :file: ../text/tables/Gst-nvjpegdec tables/DS_Plugin_gst-nvjpegdec_features.csv
  :widths: 30, 30, 30
  :header-rows: 1

Gst Properties
---------------

The following table summarizes the Gst properties of the Gst-nvjpegdec plugin.

.. csv-table:: Gst-nvjpegdec plugin gst properties 
  :file: ../text/tables/Gst-nvjpegdec tables/DS_Plugin_gst-nvjpegdec_gst-properties.csv
  :widths: 20, 20, 20, 20, 20
  :header-rows: 1