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Disable rocJPEG for ROCm wheel builds #9586

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Merged
NicolasHug merged 1 commit into from
Aug 6, 2026
+16 −0
Merged

Disable rocJPEG for ROCm wheel builds #9586

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16 changes: 16 additions & 0 deletions packaging/pre_build_script.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -38,5 +38,21 @@ else
pip install "auditwheel<6.3.0"
fi

# Build the image extension without rocJPEG on ROCm. setup.py enables rocJPEG
# whenever $ROCM_HOME/include/rocjpeg/rocjpeg.h exists, which links
# torchvision/image_stable.so against librocjpeg.so.1. That library is neither
# bundled into the torchvision wheel (the repair step omits it) nor shipped in
# the torch wheel, so the extension fails to dlopen at import and every
# torchvision.io image op silently disappears -- CPU jpeg/png/webp included.
# Written to BUILD_ENV_FILE because this script runs as a subprocess; the build
# steps source that file.
if [[ "${CU_VERSION:-}" == rocm* ]]; then
echo "Disabling rocJPEG support for ${CU_VERSION}"
export TORCHVISION_USE_ROCJPEG=0
if [[ -n "${BUILD_ENV_FILE:-}" ]]; then
echo "export TORCHVISION_USE_ROCJPEG=0" >> "${BUILD_ENV_FILE}"
fi
fi

pip install numpy pyyaml future ninja
pip install --upgrade setuptools==72.1.0
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