Systems and methods for Dynamic Adaptive Streaming over HTTP (DASH) is provided. A method includes: obtaining an event message track including a plurality of event message boxes, the event message track configured to be processed by a Dynamic Adaptive Streaming over HTTP (DASH) client for displaying media content; obtaining an indicator that indicates each type of the plurality of event message boxes in the event message track; and providing the event message track to the DASH client or displaying media content based on the event message track.