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[](https://opensource.org/licenses/MIT)
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<p align="center"><img width="70%" src="docs/data/AMD_rocJPEG_Logo.png" /></p>
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rocJPEG is a high performance JPEG decode SDK for AMD GPUs. Using the rocJPEG API, you can access the JPEG decoding features available on your GPU.
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>[!Note]
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>The published documentation is available at [rocJPEG](https://rocm.docs.amd.com/projects/rocJPEG/en/latest/) in an organized, easy-to-read format, with search and a table of contents. The documentation source files reside in the `docs` folder of this repository. As with all ROCm projects, the documentation is open source. For more information on contributing to the documentation, see [Contribute to ROCm documentation](https://rocm.docs.amd.com/en/latest/contribute/contributing.html)
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## Supported JPEG chroma subsampling
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* YUV 4:4:4
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* YUV 4:4:0
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* YUV 4:2:2
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* YUV 4:2:0
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* YUV 4:0:0
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## Prerequisites
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### Operating Systems
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* Linux
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* Ubuntu - `22.04` / `24.04`
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* RedHat - `8` / `9`
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* SLES - `15 SP7`
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### Hardware
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* **GPU**: [AMD Radeon™ Graphics](https://rocm.docs.amd.com/projects/install-on-linux/en/latest/reference/system-requirements.html) / [AMD Instinct™ Accelerators](https://rocm.docs.amd.com/projects/install-on-linux/en/latest/reference/system-requirements.html)
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> [!IMPORTANT]
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> * `gfx908` or higher GPU required
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* Install ROCm `6.3.0` or later with [amdgpu-install](https://rocm.docs.amd.com/projects/install-on-linux/en/latest/how-to/amdgpu-install.html): **Required** usecase:`rocm`
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> [!IMPORTANT]
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> `sudo amdgpu-install --usecase=rocm`
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### Compiler
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* AMD Clang++ Version 18.0.0 or later - installed with ROCm
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### Libraries
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* CMake Version `3.10` or later
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```shell
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sudo apt install cmake
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```
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* Video Acceleration API - `libva-amdgpu-dev` is an AMD implementation for VA-API
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```shell
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sudo apt install libva-amdgpu-dev
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```
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> [!NOTE]
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> * RPM Packages for `RHEL`/`SLES` - `libva-amdgpu-devel`
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> * `libva-amdgpu` is strongly recommended over system `libva` as it is used for building mesa-amdgpu-va-driver
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* AMD VA Drivers
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```shell
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sudo apt install libva2-amdgpu libva-amdgpu-drm2 libva-amdgpu-wayland2 libva-amdgpu-x11-2 mesa-amdgpu-va-drivers
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```
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> [!NOTE]
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> RPM Packages for `RHEL`/`SLES` - `libva-amdgpu mesa-amdgpu-va-drivers`
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* HIP
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```shell
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sudo apt install hip-dev
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```
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> [!IMPORTANT]
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> * Required compiler support
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> * C++17
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> * Threads
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> * On Ubuntu 22.04 - Additional package required: libstdc++-12-dev
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> ```shell
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> sudo apt install libstdc++-12-dev
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> ```
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>[!NOTE]
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> * All package installs are shown with the `apt` package manager. Use the appropriate package manager for your operating system.
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### Prerequisites setup script for Linux
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For your convenience, we provide the setup script,
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[rocJPEG-setup.py](rocJPEG-setup.py) which installs all required dependencies. Run this script only once.
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**Usage:**
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```shell
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python rocJPEG-setup.py --rocm_path [ ROCm Installation Path - optional (default:/opt/rocm)]
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```
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**NOTE:** This script only needs to be executed once.
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## Installation instructions
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The installation process uses the following steps:
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* [ROCm-supported hardware](https://rocm.docs.amd.com/projects/install-on-linux/en/latest/reference/system-requirements.html) install verification
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* Install ROCm `6.3.0` or later with [amdgpu-install](https://rocm.docs.amd.com/projects/install-on-linux/en/latest/how-to/amdgpu-install.html) with `--usecase=rocm`
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>[!IMPORTANT]
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> Use **either** [package install](#package-install) **or** [source install](#source-install) as described below.
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### Package install
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Install rocJPEG runtime, development, and test packages.
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* Runtime package - `rocjpeg` only provides the rocjpeg library `librocjpeg.so`
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* Development package - `rocjpeg-dev`/`rocjpeg-devel` provides the library, header files, and samples
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* Test package - `rocjpeg-test` provides CTest to verify installation
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#### Ubuntu
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```shell
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sudo apt install rocjpeg rocjpeg-dev rocjpeg-test
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```
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#### RHEL
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```shell
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sudo yum install rocjpeg rocjpeg-devel rocjpeg-test
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```
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#### SLES
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```shell
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sudo zypper install rocjpeg rocjpeg-devel rocjpeg-test
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```
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>[!NOTE]
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> Package install auto installs all dependencies.
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### Source install
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```shell
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git clone https://github.com/ROCm/rocJPEG.git
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cd rocJPEG
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mkdir build && cd build
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cmake ../
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make -j8
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sudo make install
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```
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#### Run tests
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```shell
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make test
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```
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**NOTE:** run tests with verbose option `make test ARGS="-VV"`
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#### Make package
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```shell
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sudo make package
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```
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## Verify installation
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The installer will copy
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* Libraries into `/opt/rocm/lib`
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* Header files into `/opt/rocm/include/rocjpeg`
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* Samples folder into `/opt/rocm/share/rocjpeg`
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* Documents folder into `/opt/rocm/share/doc/rocjpeg`
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### Using sample application
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To verify your installation using a sample application, run:
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```shell
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mkdir rocjpeg-sample && cd rocjpeg-sample
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cmake /opt/rocm/share/rocjpeg/samples/jpegDecode/
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make -j8
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./jpegdecode -i /opt/rocm/share/rocjpeg/images/mug_420.jpg
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```
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### Using test package
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To verify your installation using the `rocjpeg-test` package, run:
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```shell
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mkdir rocjpeg-test && cd rocjpeg-test
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cmake /opt/rocm/share/rocjpeg/test/
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ctest -VV
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```
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## Samples
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The tool provides a few samples to decode JPEG images [here](samples/). Please refer to the individual folders to build and run the samples.
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You can access samples to decode your images in our
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[GitHub repository](https://github.com/ROCm/rocJPEG/tree/develop/samples). Refer to the
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individual folders to build and run the samples.
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## Docker
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You can find rocJPEG Docker containers in our
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[GitHub repository](https://github.com/ROCm/rocJPEG/tree/develop/docker).
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