When HTTP/2 rescues DASH: Video frame multiplexing
When HTTP/2 rescues DASH: Video frame multiplexing
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当 HTTP/2 拯救 DASH 时：视频帧复用
DOI：
10.1109/infcomw.2017.8116458
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
G. Simon
中科院分区：
文献类型：
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作者：
Mariem Ben Yahia;Yannick Le Louédec;L. Nuaymi;G. Simon
HTTP自适应流是一种成功的、被广泛采用的内容交付技术。然而，尤其是在移动的网络中，差的带宽预测可能导致比特率振荡、增加的段递送延迟、视频冻结，并且因此可能负面地影响最终用户体验质量。为了解决这个问题，我们建议利用HTTP/2协议的流优先级和终止功能来实现视频帧过滤和调度，以最大限度地提高客户端按时接收的视频数据量。我们评估最佳的调度和过滤算法的最大收益，我们可以期望从这样的交付方案，其中视频帧进行专用HTTP/2流。评估表明，我们的基于HTTP/2的视频帧调度方案带来的视频质量的好处。
HTTP Adaptive Streaming is a successful and largely adopted content delivery technology. Yet poor bandwidth prediction, notably in mobile networks, may cause bit-rate oscillations, increased segment delivery delays, video freezes, and may thus negatively impact the end user quality of experience. To address this issue, we propose to exploit the stream prioritization and termination features of the HTTP/2 protocol to achieve video frame filtering and scheduling, so as to maximize the amount of video data received on time by the client. We evaluate with optimal scheduling and filtering algorithms the maximum gain we may expect from such delivery schemes where video frames are carried in dedicated HTTP/2 streams. Evaluation shows that our HTTP/2-based video frame scheduling scheme brings benefits for video quality.