Record PyAV sample decode verification

meta/verification_report.json

@@ -57,6 +57,28 @@
       "observation.images.guide"
     ],
     "lerobot_0_6_metadata_load": "pass",
-    "video_sample_decode": "not part of stats verification; local torchcodec/FFmpeg ABI mismatch remains an environment issue"
+    "video_sample_decode": {
+      "status": "pass",
+      "backend": "pyav",
+      "sample_index": 0,
+      "camera_shapes": {
+        "observation.images.wrist": [
+          3,
+          480,
+          640
+        ],
+        "observation.images.right_shoulder": [
+          3,
+          480,
+          640
+        ],
+        "observation.images.guide": [
+          3,
+          480,
+          640
+        ]
+      },
+      "note": "Use video_backend=pyav in lerobot060_groot; the default torchcodec backend has a local FFmpeg ABI mismatch."
+    }
   }
 }