add index.json

README.md

@@ -1,3 +1,27 @@
 ---
 license: afl-3.0
 ---
+# test_hf_data_5
+
+This is a video dataset in WebDataset format.
+
+## Structure
+
+- Each `.tar` archive contains video files (`.mp4`) and metadata (`.json`) with the same prefix.
+- The JSON files contain:
+  - `file_name`
+  - `label` (numeric)
+  - `categories` (emotion category string)
+  - `description` (human annotation)
+
+## How to use
+
+```python
+from datasets import load_dataset
+
+ds = load_dataset("ZebangCheng/test_hf_data_5", split="train", streaming=True)
+sample = next(iter(ds))
+
+# Save video
+with open(sample["json"]["file_name"], "wb") as f:
+    f.write(sample["mp4"])

index.json

@@ -0,0 +1,14 @@
+[
+    {
+      "file_name": "00019.mp4",
+      "label": 0,
+      "categories": "neutral",
+      "description": "It's me."
+    },
+    {
+      "file_name": "00020.mp4",
+      "label": 1,
+      "categories": "surprise",
+      "description": "I remember it!"
+    }
+]