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

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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.

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Download and install the sdk.

1

Download SDK

wget -O sdk.zip https://artifacts.codelinaro.org/artifactory/qli-ci/flashable-binaries/meta-qcom/qcom-armv8a/x86-qli-2.0-standardsdk.zip
2

Extract and Install the SDK

unzip sdk.zip && cd images/qcom-armv8a/sdk/

bash qcom-distro-x86_64-qcom-multimedia-proprietary-image-armv8a-qcom-armv8a-toolchain-2.0.sh -d <path_to_install_sdk> -y
3

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.

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Steps to Compile

To download the source code and compile the sample applications, run the following commands.
1

Clone the sources from github

git clone https://github.com/qualcomm/gst-plugins-imsdk.git
cd gst-plugins-imsdk
2

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.

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Steps to build custom application

Go through the prerequisites and Steps to Compile section before starting this.
1

Create a subdirectory in gst-sample-apps

cd gst-plugins-imsdk/gst-sample-apps && mkdir gst-<your_sample_apps>
2

Build the application

Follow Step 2: Run CMake to generate the Makefile and build
3

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>/