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Content-aware playback speed control for low-latency live streaming of sports

Title	Content-aware playback speed control for low-latency live streaming of sports
Author	Aladağ, Ö. F., Uğur, Deniz, Akçay, Mehmet Necmettin, Beğen, Ali Cengiz
Publication Date:	2021
Publication Place	- The ACM Digital Library
Subject	Adaptive playback, Playback speed control, Adaptive streaming, ABR, DASH, HLS, CMAF, Low latency
Type	Document
Language	English
Digital	Yes
Manuscript	No
Library:	Özyeğin University
Library Asset ID	978-1-4503-8434-6
Record ID	98f750fc-6cb7-40d8-8090-734d025a511d
Library Location	Computer Science
Date	2021
Sample Text	There are two main factors that determine the viewer experience during the live streaming of sports content: latency and stalls. Latency should be low and stalls should not occur. Yet, these two factors work against each other and it is not trivial to strike the best trade-off between them. One of the best tools we have today to manage this trade-off is the adaptive playback speed control. This tool allows the streaming client to slow down the playback when there is a risk of stalling and increase the playback when there is no risk of stalling but the live latency is higher than desired. While adaptive playback generally works well, the artifacts due to the changes in the playback speed should preferably be unnoticeable to the viewers. However, this mostly depends on the portion of the audio/video content subject to the playback speed change. In this paper, we advance the state-of-the-art by developing a content-aware playback speed control (CAPSC) algorithm and demonstrate a number of examples showing its significance. We make the running code available and provide a demo page hoping that it will be a useful tool for the developers and content providers.

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Özyeğin University

Content-aware playback speed control for low-latency live streaming of sports

Author Aladağ, Ö. F., Uğur, Deniz, Akçay, Mehmet Necmettin, Beğen, Ali Cengiz

Publication Date 2021

Publication Place - The ACM Digital Library

Subject Adaptive playback, Playback speed control, Adaptive streaming, ABR, DASH, HLS, CMAF, Low latency

Type Document

Language English

Digital Yes

Manuscript No

Library Özyeğin University

Library Asset ID 978-1-4503-8434-6

Record ID 98f750fc-6cb7-40d8-8090-734d025a511d

Library Location Computer Science

Date 2021

Sample Text There are two main factors that determine the viewer experience during the live streaming of sports content: latency and stalls. Latency should be low and stalls should not occur. Yet, these two factors work against each other and it is not trivial to strike the best trade-off between them. One of the best tools we have today to manage this trade-off is the adaptive playback speed control. This tool allows the streaming client to slow down the playback when there is a risk of stalling and increase the playback when there is no risk of stalling but the live latency is higher than desired. While adaptive playback generally works well, the artifacts due to the changes in the playback speed should preferably be unnoticeable to the viewers. However, this mostly depends on the portion of the audio/video content subject to the playback speed change. In this paper, we advance the state-of-the-art by developing a content-aware playback speed control (CAPSC) algorithm and demonstrate a number of examples showing its significance. We make the running code available and provide a demo page hoping that it will be a useful tool for the developers and content providers.