Critical bandwidth allocation techniques for stored video delivery across best-effort networks

W. Feng, Ming Liu
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引用次数: 27

Abstract

We propose two new techniques for the delivery of compressed prerecorded video streams across best-effort networks like the Internet. Current approaches for the delivery of stored video across best-effort networks typically alter the quality of the video frames, the frame rate delivered to the user, or a combination of both. By using network feedback, these algorithms continually adjust the video quality to fit within the available network resources. These approaches, however do not take advantage of the a priori information available from stored video streams, namely the frame sizes that the movie consists of. We show how monitoring the a priori information and actively monitoring a client-side buffer can help smooth the video frame rate delivered to the user, providing a more consistent quality of video.
跨尽力而为网络存储视频传输的关键带宽分配技术
我们提出了两种新技术,用于在尽力而为的网络(如Internet)上传输压缩的预先录制的视频流。目前在尽力而为的网络上传输存储视频的方法通常会改变视频帧的质量,传输给用户的帧率,或者两者的结合。通过使用网络反馈,这些算法不断调整视频质量以适应可用的网络资源。然而,这些方法没有利用存储视频流中可用的先验信息,即电影由帧大小组成。我们展示了如何监控先验信息和主动监控客户端缓冲区可以帮助平滑传递给用户的视频帧率,从而提供更一致的视频质量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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