Study on viewing completion ratio of video streaming

In this paper, a model is investigated for optimizing the encoding of adaptive bitrate video streaming. To this end, the relationship between quality, content duration, and acceptability measured by using the completion ratio is studied. This work is based on intensive subjective testing performed in a laboratory environment and shows the importance of stimulus duration in acceptance studies. A model to predict the completion ratio of videos is provided and shows good accuracy. By using this model, quality requirements can be derived on the basis of the target abandonment rate and content duration. This work will help video streaming providers to define suitable coding conditions when preparing content to be broadcast on their platform that will maintain user engagement.