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31 lines
1.3 KiB
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31 lines
1.3 KiB
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.. meta::
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:description: rocDecode Sample Prerequisites
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:keywords: install, rocDecode, AMD, ROCm, samples, prerequisites, dependencies, requirements
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********************************************************************
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rocDecode samples
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********************************************************************
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rocDecode samples are available in the `rocDecode GitHub repository <https://github.com/ROCm/rocm-systems/tree/develop/projects/rocdecode/samples>`_.
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To run the samples, you'll need to set the ``ROCM_PATH`` to point to the location of your ROCm installation, and set ``LD_PRELOAD`` and ``LIBVA_DRIVERS_PATH`` to point to the ROCm systems libraries and drivers:
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.. code:: shell
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export LD_PRELOAD=$ROCM_PATH/lib/rocm_sysdeps/lib/librocm_sysdeps_va.so.2:$ROCM_PATH/lib/rocm_sysdeps/lib/librocm_sysdeps_va-drm.so.2
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export LIBVA_DRIVERS_PATH=$ROCM_PATH/lib/rocm_sysdeps/lib/
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FFmpeg development libraries must be installed to build and run samples that use FFmpeg for either demultiplexing or decoding:
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.. code::
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sudo apt install libavcodec-dev libavformat-dev libavutil-dev
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You can find a walkthrough of the ``videodecode.cpp`` sample at :doc:`Understanding the videodecode.cpp sample <../how-to/using-rocDecode-videodecode-sample>`.
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