--- a
+++ b/tools/data/activitynet/download_videos.sh
@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+# set up environment
+conda env create -f environment.yml
+source activate activitynet
+pip install --upgrade youtube-dl
+pip install mmcv
+
+DATA_DIR="../../../data/ActivityNet"
+python download.py
+
+source deactivate activitynet
+conda remove -n activitynet --all