Installation

Installation#

rocDecode Python Binding, rocPyDecode, is a tool that allows users to access rocDecode APIs in both Python and C/C++ languages. It works by connecting Python and C/C++ libraries, enabling function calling and data passing between the two languages. The rocpydecode.so library is a wrapper that facilitates the use of rocDecode APIs that are written primarily in C/C++ language within Python.

Supported codecs#

  • H.265 (HEVC) - 8 bit, and 10 bit

  • H.264 (H264) - 8 bit

Prerequisites#

  • Linux distribution

    • Ubuntu: 22.04 and later

  • ROCm-supported hardware (gfx908 or higher is required)

  • Install ROCm 6.2.0 or later with amdgpu-install

    • Run: --usecase=rocm

  • CMake 3.5 or later

    sudo apt install cmake

  • Python3 and Python3 PIP

    sudo apt install python3-dev python3-pip

  • PyBind11

    sudo apt install pybind11-dev

  • rocDecode

    • To install rocDecode with minimum requirements, follow the rocDecode QuickStart Guide

    sudo apt install rocdecode-dev

  • pkg-config

    sudo apt install pkg-config

  • FFmpeg runtime and headers - for tests and samples

    sudo apt install ffmpeg libavcodec-dev libavformat-dev libavutil-dev

  • DLPack

    sudo apt install libdlpack-dev

Note

  • All package installs are shown with the apt package manager. Use the appropriate package manager for your operating system.

  • On Ubuntu 22.04 - Additional package required: libstdc++-12-dev

sudo apt install libstdc++-12-dev

Prerequisites setup script#

For your convenience, a setup script has been provided which installs all required dependencies, rocPyDecode-requirements.py. Run this script only once.

python3 rocPyDecode-requirements.py

Installation instructions#

To build rocPyDecode from source, run:

If using bare metal, sudo access is needed.

git clone https://github.com/ROCm/rocPyDecode.git
cd rocPyDecode
sudo pip3 install .

If using a docker environment or any system with root access. Do NOT use sudo.

git clone https://github.com/ROCm/rocPyDecode.git
cd rocPyDecode
python rocPyDecode-docker-install.py

Run tests (this requires FFmpeg dev install):

Dependencies:

python3 -m pip install --upgrade pip
python3 -m pip install -i https://test.pypi.org/simple hip-python

Run test:

cd rocPyDecode
cmake .
ctest -VV

To run tests with verbose option, use make test ARGS="-VV".

Hardware capabilities#

The following table shows the codec support and capabilities of the VCN for each supported GPU architecture.

GPU Architecture

VCN Generation

Number of VCNs

H.265/HEVC

Max width, Max height - H.265

H.264/AVC

Max width, Max height - H.264

gfx908 - MI1xx

VCN 2.5.0

2

Yes

4096, 2176

Yes

4096, 2160

gfx90a - MI2xx

VCN 2.6.0

2

Yes

4096, 2176

Yes

4096, 2160

gfx940, gfx942 - MI3xx

VCN 3.0

3

Yes

7680, 4320

Yes

4096, 2176

gfx941 - MI3xx

VCN 3.0

4

Yes

7680, 4320

Yes

4096, 2176

gfx1030, gfx1031, gfx1032 - Navi2x

VCN 3.x

2

Yes

7680, 4320

Yes

4096, 2176

gfx1100, gfx1102 - Navi3x

VCN 4.0

2

Yes

7680, 4320

Yes

4096, 2176

gfx1101 - Navi3x

VCN 4.0

1

Yes

7680, 4320

Yes

4096, 2176
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