echo -n "Downloading and patching clip repository ... "

git clone --quiet https://github.com/openai/CLIP.git || exit 1

cd CLIP || exit 1

git checkout --quiet d50d76daa670286dd6cacf3bcd80b5e4823fc8e1 || exit 1

sed -i /self.proj/d clip/model.py || exit 1

cd ..

echo "OK ✓"

echo -n "Downloading clip weights ... "

mkdir -p weights

wget https://openaipublic.azureedge.net/clip/models/b8cca3fd41ae0c99ba7e8951adf17d267cdb84cd88be6f7c2e0eca1737a03836/ViT-L-14.pt -q -O weights/ViT-L-14.pt

SHA256SUM=$(sha256sum weights/ViT-L-14.pt | cut -d' ' -f1)

if [[ ${SHA256SUM} == "b8cca3fd41ae0c99ba7e8951adf17d267cdb84cd88be6f7c2e0eca1737a03836" ]]; then

echo "OK ✓"

echo "ERROR ✗"

exit 1

echo -n "Downloading ChangeIt annotations ... "

mkdir -p videos

git clone --quiet https://github.com/soCzech/ChangeIt.git || exit 1

echo "OK ✓"

echo "To replicate our experiments, please download ChangeIt videos into \`videos/*category*\` folders."

echo "More details on how to download the videos at https://github.com/soCzech/ChangeIt."

echo "If you wish to train the model on your data, please see the README file."