Yocto platform - Qualcomm Dragonwing Documentation

This section explains how to compile QIMSDK plugins for Yocto platform.

On-host Compilation
On-device Compilation

This section explains how to compile QIMSDK plugins directly on a x86 host machine running Ubuntu.

Prerequisites

Before you begin, ensure the following:

Internet connectivity for downloading packages and source code.
Sufficient space on the host to download the SDK. Upto ~5GB.

Download and install the sdk.

Get the latest Nightly Build (wrynose) from the below link

https://github.com/qualcomm-linux/meta-qcom/actions/workflows/nightly-build.yml

Download SDK

Locate the “build-nightly / publish_summary summary” section within the
workflow results.

Expand the “Download URLs Details” section.

Under the qcom-distro-sdk distribution for the qcom‑armv8a target,
click on the “Files” link.

In the file list, use the “Type” filter to select .sh files, then download:
qcom-distro-x86_64-qcom-multimedia-proprietary-image-armv8a-qcom-armv8a-toolchain-2.0.sh

Extract and Install the SDK

bash qcom-distro-x86_64-qcom-multimedia-proprietary-image-armv8a-qcom-armv8a-toolchain-2.0.sh -d <path_to_install_sdk> -y

Source the cross-compilation toolchain environment

source <path_to_install_sdk>/environment-setup-armv8a-qcom-linux

Each time you wish to use the SDK in a new shell session, you need to source the environment setup script in Step 4.

Steps to Compile

To download the source code and compile the sample applications, run the following commands.

Clone the sources from github

git clone https://github.com/qualcomm/gst-plugins-imsdk.git
cd gst-plugins-imsdk

Run CMake to generate the Makefile and build

cmake -B build -S . \
  -DCMAKE_INSTALL_PREFIX=/usr \
  -DENABLE_GST_IMSDK_PLUGINS=1 \
  -DENABLE_GST_PLUGIN_MLTFLITE=1 \
  -DENABLE_GST_PYTHON_EXAMPLES=1 \
  -DENABLE_GST_SAMPLE_APPS=1 \
  -DENABLE_GST_SAMPLE_APPS_CAMERA=1 \
  -DENABLE_GST_PLUGIN_TOOLS=1 \
  -DENABLE_GST_CAMERA_PLUGINS=1 \
&& cmake --build build

After modifying any part of the source code, re-run step 2 to rebuild your changes. The corresponding libs from build directory can then be copied on to device.

Steps to build custom application

Create a subdirectory in gst-sample-apps

cd gst-plugins-imsdk/gst-sample-apps && mkdir gst-<your_sample_apps>

Build the application

Goto Steps to Compile and Install section and follow step 2: “Run CMake to generate the Makefile and build”

Copy the binary to target device

#The application will be found in the below location
gst-plugins-imsdk/build/gst-sample-apps/gst-<your_sample_apps>/

​Prerequisites

​Download and install the sdk.

​Steps to Compile

​Steps to build custom application

Prerequisites

Download and install the sdk.

Steps to Compile

Steps to build custom application