Rate-Quality or Energy-Quality Pareto Fronts for Adaptive Video Streaming?
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Acceso en línea: | |
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| _version_ | 1866909101975404544 |
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| author | Katsenou, Angeliki Wang, Xinyi Schien, Daniel Bull, David |
| author_facet | Katsenou, Angeliki Wang, Xinyi Schien, Daniel Bull, David |
| contents | Adaptive video streaming is a key enabler for optimising the delivery of offline encoded video content. The research focus to date has been on optimisation, based solely on rate-quality curves. This paper adds an additional dimension, the energy expenditure, and explores construction of bitrate ladders based on decoding energy-quality curves rather than the conventional rate-quality curves. Pareto fronts are extracted from the rate-quality and energy-quality spaces to select optimal points. Bitrate ladders are constructed from these points using conventional rate-based rules together with a novel quality-based approach. Evaluation on a subset of YouTube-UGC videos encoded with x.265 shows that the energy-quality ladders reduce energy requirements by 28-31% on average at the cost of slightly higher bitrates. The results indicate that optimising based on energy-quality curves rather than rate-quality curves and using quality levels to create the rungs could potentially improve energy efficiency for a comparable quality of experience. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_07057 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Rate-Quality or Energy-Quality Pareto Fronts for Adaptive Video Streaming? Katsenou, Angeliki Wang, Xinyi Schien, Daniel Bull, David Image and Video Processing Multimedia Adaptive video streaming is a key enabler for optimising the delivery of offline encoded video content. The research focus to date has been on optimisation, based solely on rate-quality curves. This paper adds an additional dimension, the energy expenditure, and explores construction of bitrate ladders based on decoding energy-quality curves rather than the conventional rate-quality curves. Pareto fronts are extracted from the rate-quality and energy-quality spaces to select optimal points. Bitrate ladders are constructed from these points using conventional rate-based rules together with a novel quality-based approach. Evaluation on a subset of YouTube-UGC videos encoded with x.265 shows that the energy-quality ladders reduce energy requirements by 28-31% on average at the cost of slightly higher bitrates. The results indicate that optimising based on energy-quality curves rather than rate-quality curves and using quality levels to create the rungs could potentially improve energy efficiency for a comparable quality of experience. |
| title | Rate-Quality or Energy-Quality Pareto Fronts for Adaptive Video Streaming? |
| topic | Image and Video Processing Multimedia |
| url | https://arxiv.org/abs/2402.07057 |