September 2024
Intermediate to advanced
448 pages
14h 23m
English
Content preview from Coding Video
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10Storing and Transporting Coded Video
10.1 Introduction
Video coding is a key technology for storing and transmitting video. The development of video coding standards since the early 1990s has enabled an increasingly diverse range of applications for digital video. These range from digital TV and digital versatile disc (DVD) video, to today’s use of video for day‐to‐day communication and leisure activities, using a wide range of consumer devices. For example, the movement restrictions put in place during the COVID pandemic in the 2020–2022 period led to an unexpected growth in the use of video calling and video conferencing, as many people shifted to working from home [1]. Alongside the development of video coding, it has been necessary to develop file formats for storing digital video and methods for transmitting coded video and multimedia data across digital networks. The last decade has seen a continual increase in the use of streaming video. This has been made possible by developments in network capacity, streaming protocols, and video compression.
In this chapter, we will look at:
- How video codecs are used in practical scenarios in which a coded video stream is stored and/or transmitted over a network or a channel.
- How coded video can be stored in a container file such as an MP4 file.
- The differences between broadcast, user‐to‐user and streaming video.
- How adaptive bitrate streaming works.
- Ways of controlling the bitrate of coded video and dealing with transmission errors. ...
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