Bandwidth constraints in live streaming require video codecs to balance compression strength and frame rate, yet the perceptual consequences of this trade-off remain underexplored. We present the high frame rate live streaming (HFR-LS) dataset, comprising 384 subject-rated 1080p videos encoded at multiple target bitrates by systematically varying compression strength and frame rate. A single-stimulus, hidden-reference subjective study shows that frame rate has a noticeable effect on perceived quality, and interacts with both bitrate and source content. The HFR-LS dataset is available at https://github.com/real-hjq/HFR-LS to facilitate research on bitrate-constrained live streaming.

翻译：直播流媒体中的带宽限制要求视频编解码器在压缩强度与帧率之间进行权衡，然而这种权衡对感知质量的影响尚未得到充分研究。我们提出了高帧率直播流媒体（HFR-LS）数据集，该数据集包含384段经主观评分的1080p视频，通过系统性地调整压缩强度与帧率，以多种目标比特率进行编码。一项采用单激励隐藏参考法的感知实验表明，帧率对感知质量具有显著影响，并与比特率及源内容产生交互作用。HFR-LS数据集已发布于 https://github.com/real-hjq/HFR-LS，以促进比特率受限直播流媒体的相关研究。