Adding a Header field in "Faces" message?

[briantam]

Hi @bmcdorman, @eshort:

Was there any particular design reason for not including a std_msgs/Header field in the Faces message that the openface_ros node publishes?

In order to sync the audio data with the visual data in a single ROS node, I was thinking of using the time synchronizer from the message_filters package with an approximate time policy. But doing so requires that the messages from both topics have a header field.

Would it be appropriate to include this field in the Faces message?