An overview of scalable video streaming

As the number of networks, types of devices, and content representation formats increase, interoperability between different systems and different networks is becoming more important. Video streaming addresses the problem of transferring video data as a continuous Stream, typically there are two modes for transmission of stored video over the Internet, namely the download mode and the streaming mode (i.e., video streaming). In the download mode, a user downloads the entire video file and then plays back the video file. However, full file transfer in the download mode usually suffers long and perhaps unacceptable transfer time. Internet's transmission resources exhibit variability at multiple time-scales, and the available bandwidth fluctuates over a broad range because of the wide distribution of packet loss burst duration, changes in bottleneck capacity, and multiple time-scale queuingtime variation. This dynamic behavior of the Internet makes it difficult to provide perceptually good quality of streaming video In contrast, in the streaming mode, the video content need not be downloaded in full, but is being played out \\hile parts of the content are being received and decode

The Físchlár digital library: networked access to a video archive of TV news

This paper presents an overview of the Físchlár digital library, a collection of over 300 hours of broadcast TV content which has been indexed to allow searching, browsing and playback of video. The system is in daily use by over 1,500 users on our University campus and is used for teaching and learning, for research, and for entertainment. It is shortly to be made available to University libraries elsewhere in Ireland. The infrastructure we use is a Gigabit ETHERNET backbone and a conventional web browser for searching and browsing video content, with a browser plug-in for streaming video. As well as providing an overview of the system, the paper concentrates on the complimentary navigation techniques of browsing and searching which are supported within Físchlár

SILLVR: Streaming Interlibrary Loan Video Resources

This paper is an overview of SILLVR (Streaming Interlibrary Loan Video Resources), an innovative, collaborative pilot project that facilitates interlibrary loan (ILL) for streaming video. Conceived of by Auraria Library staff, SILLVR leverages partnerships with streaming video vendors and the Colorado Alliance for Research Libraries to enable library-to-library borrowing of streaming video media. This paper begins by briefly investigating the history and landscape of interlibrary loan, the loaning of electronic and “new” media, as well as how libraries collaboratively work towards increased ILL access and how this work supports equity. The second half of the paper details the creation of SILLVR, from its conception to the partnerships it has engendered and the workflows that will make it a reality

QoE-centric management of advanced multimedia services

Over the last years, multimedia content has become more prominent than ever. Particularly, video streaming is responsible for more than a half of the total global bandwidth consumption on the Internet. As the original Internet was not designed to deliver such real-time, bandwidth-consuming applications, a serious challenge is posed on how to efficiently provide the best service to the users. This requires a shift in the classical approach used to deliver multimedia content, from a pure Quality of Service (QoS) to a full Quality of Experience (QoE) perspective. While QoS parameters are mainly related to low-level network aspects, the QoE reflects how the end-users perceive a particular multimedia service. As the relationship between QoS parameters and QoE is far from linear, a classical QoS-centric delivery is not able to fully optimize the quality as perceived by the users. This paper provides an overview of the main challenges this PhD aims to tackle in the field of end-to-end QoE optimization of video streaming services and, more precisely, of HTTP Adaptive Streaming (HAS) solutions, which are quickly becoming the de facto standard for video delivery over the Internet

Utilization of the Agora video broadcasting library to support remote live streaming

In daily life, people utilize the video technology, especially live streaming to provide a real time transmission of an event or activity. Live streaming helps the robustness of a long-distance view by enabling the viewer to see what would normally be seen if on-site. It describes the real time situation in video mode to fulfill the particular information. In this case, a minimal capture-display delay is important. By using recent technological advances have certainly made it possible to produce remote live-streaming. In this research, we utilize the Agora.io in broadcasting live streaming video to help people view an event real time without being in the same place. We analyzed the limitations of mobile-based live streaming applications, such as delay, frames per second, and resolution. The paper describes experimentally the most relevant approaches for the research. The results of this research present an overview for the public to choose the characteristics of remote live streaming

A Survey of Video Streaming Practice and Aspirations in Academic Libraries

This talk reports on a survey conducted during Spring 2010, with responses collected from over 100 people. The survey focused the current practices and future plans of academic libraries regarding video streaming. In addition to summarizing results of the survey, we will provide an overview of video streaming plans at IU, with a focus on activities in support of Action 37 in the Empowering People strategic plan

Sweet Streams are Made of This: The System Engineer's View on Energy Efficiency in Video Communications

In recent years, the global use of online video services has increased rapidly. Today, a manifold of applications, such as video streaming, video conferencing, live broadcasting, and social networks, make use of this technology. A recent study found that the development and the success of these services had as a consequence that, nowadays, more than 1% of the global greenhouse-gas emissions are related to online video, with growth rates close to 10% per year. This article reviews the latest findings concerning energy consumption of online video from the system engineer's perspective, where the system engineer is the designer and operator of a typical online video service. We discuss all relevant energy sinks, highlight dependencies with quality-of-service variables as well as video properties, review energy consumption models for different devices from the literature, and aggregate these existing models into a global model for the overall energy consumption of a generic online video service. Analyzing this model and its implications, we find that end-user devices and video encoding have the largest potential for energy savings. Finally, we provide an overview of recent advances in energy efficiency improvement for video streaming and propose future research directions for energy-efficient video streaming services.Comment: 16 pages, 5 figures, accepted for IEEE Circuits and Systems Magazin

Rapid Prototyping of Embedded Video Processing Systems in FPGA Devices

Design of video processing circuits requires a variety of tools and knowledge, and it is difficult to find the right combination of tools for an efficient design process, specifically when considering open tools for evaluation or educational purpose. This chapter presents an overview of video processing requirements, programmable devices used for embedded video processing and the components of a video processing chain. We propose a novel design flow for generating customizable intellectual property (IP) cores used in streaming video processing applications. This design flow is based on domain-specific modules in Python language. Examples of generated cores are presented

Survey of Transportation of Adaptive Multimedia Streaming service in Internet

[DE] World Wide Web is the greatest boon towards the technological advancement of modern era. Using the benefits of Internet globally, anywhere and anytime, users can avail the benefits of accessing live and on demand video services. The streaming media systems such as YouTube, Netflix, and Apple Music are reining the multimedia world with frequent popularity among users. A key concern of quality perceived for video streaming applications over Internet is the Quality of Experience (QoE) that users go through. Due to changing network conditions, bit rate and initial delay and the multimedia file freezes or provide poor video quality to the end users, researchers across industry and academia are explored HTTP Adaptive Streaming (HAS), which split the video content into multiple segments and offer the clients at varying qualities. The video player at the client side plays a vital role in buffer management and choosing the appropriate bit rate for each such segment of video to be transmitted. A higher bit rate transmitted video pauses in between whereas, a lower bit rate video lacks in quality, requiring a tradeoff between them. The need of the hour was to adaptively varying the bit rate and video quality to match the transmission media conditions. Further, The main aim of this paper is to give an overview on the state of the art HAS techniques across multimedia and networking domains. A detailed survey was conducted to analyze challenges and solutions in adaptive streaming algorithms, QoE, network protocols, buffering and etc. It also focuses on various challenges on QoE influence factors in a fluctuating network condition, which are often ignored in present HAS methodologies. Furthermore, this survey will enable network and multimedia researchers a fair amount of understanding about the latest happenings of adaptive streaming and the necessary improvements that can be incorporated in future developments.Abdullah, MTA.; Lloret, J.; Canovas Solbes, A.; García-García, L. (2017). Survey of Transportation of Adaptive Multimedia Streaming service in Internet. Network Protocols and Algorithms. 9(1-2):85-125. doi:10.5296/npa.v9i1-2.12412S8512591-