Content-Adaptive Variable Framerate Encoding Scheme for Green Live Streaming
Сохранить в:
| Опубликовано в:: | arXiv.org (Nov 14, 2023), p. n/a |
|---|---|
| Главный автор: | |
| Другие авторы: | , , , , |
| Опубликовано: |
Cornell University Library, arXiv.org
|
| Предметы: | |
| Online-ссылка: | Citation/Abstract Full text outside of ProQuest |
| Метки: |
Нет меток, Требуется 1-ая метка записи!
|
MARC
| LEADER | 00000nab a2200000uu 4500 | ||
|---|---|---|---|
| 001 | 2890143101 | ||
| 003 | UK-CbPIL | ||
| 022 | |a 2331-8422 | ||
| 035 | |a 2890143101 | ||
| 045 | 0 | |b d20231114 | |
| 100 | 1 | |a Menon, Vignesh V | |
| 245 | 1 | |a Content-Adaptive Variable Framerate Encoding Scheme for Green Live Streaming | |
| 260 | |b Cornell University Library, arXiv.org |c Nov 14, 2023 | ||
| 513 | |a Working Paper | ||
| 520 | 3 | |a Adaptive live video streaming applications use a fixed predefined configuration for the bitrate ladder with constant framerate and encoding presets in a session. However, selecting optimized framerates and presets for every bitrate ladder representation can enhance perceptual quality, improve computational resource allocation, and thus, the streaming energy efficiency. In particular, low framerates for low-bitrate representations reduce compression artifacts and decrease encoding energy consumption. In addition, an optimized preset may lead to improved compression efficiency. To this light, this paper proposes a Content-adaptive Variable Framerate (CVFR) encoding scheme, which offers two modes of operation: ecological (ECO) and high-quality (HQ). CVFR-ECO optimizes for the highest encoding energy savings by predicting the optimized framerate for each representation in the bitrate ladder. CVFR-HQ takes it further by predicting each representation's optimized framerate-encoding preset pair using low-complexity discrete cosine transform energy-based spatial and temporal features for compression efficiency and sustainable storage. We demonstrate the advantage of CVFR using the x264 open-source video encoder. The results show that CVFR-ECO yields an average PSNR and VMAF increase of 0.02 dB and 2.50 points, respectively, for the same bitrate, compared to the fastest preset highest framerate encoding. CVFR-ECO also yields an average encoding and storage energy consumption reduction of 34.54% and 76.24%, considering a just noticeable difference (JND) of six VMAF points. In comparison, CVFR-HQ yields an average increase in PSNR and VMAF of 2.43 dB and 10.14 points, respectively, for the same bitrate. Finally, CVFR-HQ resulted in an average reduction in storage energy consumption of 83.18%, considering a JND of six VMAF points. | |
| 653 | |a Reduction | ||
| 653 | |a Streaming media | ||
| 653 | |a Energy consumption | ||
| 653 | |a Video transmission | ||
| 653 | |a Representations | ||
| 653 | |a Coding | ||
| 653 | |a Efficiency | ||
| 653 | |a Resource allocation | ||
| 653 | |a Energy storage | ||
| 653 | |a Discrete cosine transform | ||
| 700 | 1 | |a Afzal, Samira | |
| 700 | 1 | |a Rajendran, Prajit T | |
| 700 | 1 | |a Schoeffmann, Klaus | |
| 700 | 1 | |a Prodan, Radu | |
| 700 | 1 | |a Timmerer, Christian | |
| 773 | 0 | |t arXiv.org |g (Nov 14, 2023), p. n/a | |
| 786 | 0 | |d ProQuest |t Engineering Database | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/2890143101/abstract/embedded/75I98GEZK8WCJMPQ?source=fedsrch |
| 856 | 4 | 0 | |3 Full text outside of ProQuest |u http://arxiv.org/abs/2311.08074 |