Open GOP Resolution Switching in HTTP Adaptive Streaming with VVC
Robert Skupin, Christian Bartnik, Adam Wieckowski, Yago Sanchez,, Benjamin Bross, Cornelius Hellge, Thomas Schierl

TL;DR
This paper introduces a constrained encoding method for open GOP resolution switching in VVC-based HTTP streaming, achieving significant BD-rate reductions and enabling efficient adaptive streaming with open GOP structures.
Contribution
It enables the use of RPR in VVC for HTTP streaming by analyzing drift potential and proposing a constrained encoding method, improving coding efficiency.
Findings
-8.57% BD-rate reduction in live streaming scenarios
-1.89% BD-rate reduction in VOD scenarios
0.65% BD-rate penalty in worst case
Abstract
The user experience in adaptive HTTP streaming relies on offering bitrate ladders with suitable operation points for all users and typically involves multiple resolutions. While open GOP coding structures are generally known to provide substantial coding efficiency benefit, their use in HTTP streaming has been precluded through lacking support of reference picture resampling (RPR) in AVC and HEVC. The newly emerging Versatile Video Coding (VVC) standard supports RPR, but only conversational scenarios were primarily investigated during the design of VVC. This paper aims at enabling usage of RPR in HTTP streaming scenarios through analysing the drift potential of VVC coding tools and presenting a constrained encoding method that avoids severe drift artefacts in resolution switching with open GOP coding in VVC. In typical live streaming configurations, the presented method achieves -8.57%…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
