Use Case 1: Accurate play position

Supporters

• Fraunhofer Fokus (Submitter)

Use Case Description

• For media synchronization, interactive video and ad insertion use cases an accurately reported current play position (as the presentation time of the currently presented frame) is required.
• We’ve seen offsets of up to 800ms, testing with different Smart TVs, HbbTV etc.. For testing, the actual play position was “burned” into the video.
• The issue might not originate from an inaccurate media engine, but maybe slow event pipeline or low JavaScript resolution timer => performance
• Device manufactures probably have more insight into this.

Overlap with other use cases

Potential Implementation of Use Case using HTML-5 APIs

Required features

Identified Problems and Gaps

Potential Requirements and Specifications