Index: media/mp4/box_definitions.h |
diff --git a/media/mp4/box_definitions.h b/media/mp4/box_definitions.h |
index 0b19a5c759060223b5419129a7ff974987c15b33..b78ebdd6d5934fc3804f8d869b83cb80066eb120 100644 |
--- a/media/mp4/box_definitions.h |
+++ b/media/mp4/box_definitions.h |
@@ -217,7 +217,9 @@ struct MEDIA_EXPORT SampleTable : Box { |
DECLARE_BOX_METHODS(SampleTable); |
// Media Source specific: we ignore many of the sub-boxes in this box, |
- // including some that are required to be present in the BMFF spec. |
+ // including some that are required to be present in the BMFF spec. This |
+ // includes the 'stts', 'stsc', and 'stco' boxes, which must contain no |
+ // samples in order to be compliant files. |
SampleDescription description; |
}; |