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Recently, as shown by different studies, the video traffic dominates the current traffic composition of the Internet. Nowadays, the video traffic represents more than 65% of global traffic and in the Internet forecasts, it will reach 79% in 2018 in both wired and wireless environments. Hence, major content providers such as Netflix, Youtube, Hulu, and Vudu are leveraging HTTP-based multimedia transmission...
Video-on-demand (VOD) system allows users to access media any time without the need to leave their home. Hard disk drive (HDD) has become popular for VOD storage to store and deal with a large amount of data. In practical cases, disk storage throughput is limited by a slow HDD and disk operating degrades drastically when the server needs to serve many simultaneous video streams. On the other hand,...
Video surveillance service has become one of the most popular services of video data center. Different from traditional VoD and IPTV services, video surveillance service is based on video data center which receives video stream from IP camera and forward the video stream to end user. However, current works only consider the forwarding video stream scheduling from media server to end user and focus...
The benefits of transcoding make it possible an incompatible or obsolete contents to be run at any device in a modern format. Nowadays, it is a common way to transcode contents to another format, different bitrates or qualities. As there are some limitations on the source computer which is like thin client with very low H/W specification, it is preferably recommended to be processed on the cloud environment...
Adaptive HTTP Streaming has become a widespread technology for delivering video to the end users. However, this technology usually suffers from various latencies, requiring an initial delay before playback. This is problematic for low delay or interactive applications, such as gaming or live event webcasting. A long initial waiting time is perceived by most users as bad quality, or even non-working...
WebRTC is an HTML5 API that allows browsers to establish a peer-to-peer connection for transferring data and media content via JavaScript APIs. This functionality enables broad range of new applications to emerge and is going to revolutionize Web communication. However, this technology is still under development and standardization process. Hence, detecting performance bottlenecks of different implementations...
Dynamic Adaptive Streaming over HTTP (DASH) standard was designed to improve quality of experience (QoE) by enabling video distribution at different quality levels according to the clients' network conditions. Moreover, DASH is compatible with the H.264 Scalable Video Coding (SVC) technology. In Content Delivery Networks (CDNs)-P2P hybrid approach, users can fetch contents from the CDN edge network,...
HTTP ABR Video Streaming based methods are being used by certain media players and video servers. With this, video is encoded with different data rates, stored on a content server (if possible) and streamed to different client devices. Media player at client device considers various performance factors and decides the rate that it should ask for the next video segment. There are different types of...
The rapid growth of the Internet users brings on bandwidth bottleneck. Consequently, it is difficult to guarantee the video service quality of the online streaming media platform. This paper mainly introduces the current situation of streaming media platform, analyzes the network performance and the existing problems, and then puts forward the corresponding research scheme. It specifically adopts...
A real-time stream recovery (RTSR) scheme is proposed to solve the problem of critical packet loss while receiving multicast streaming for recording Internet Protocol Television (IPTV) programs. Applied to time-shifted TV, RTSR not only restores program files instantly once streaming failure is detected, but also provides fluent playback to viewers when multicast streaming is interrupted. An analysis...
We developed a robust approach that can be synchronized with accuracy to a media streaming group in a network congestion situation. This approach consists of a server-side and client-side algorithm. The server-side algorithm is used to transmit the playback information using a synchronization control packet to clients. The synchronization control packet is transmitted in an event-driven manner. The...
Real-time interactive communications have become critical for business, e-commerce, e-government and education. Teleconferencing systems have been usually deployed using proprietary and expensive systems. Overlay networks are often used to support multi-point teleconferencing and provide services unavailable in the underlying physical networks. With the advent of WebRTC, real-time communication applications...
Video streaming is one of the most popular internet services and generates a large percentage of the global network traffic. As major video-on-demand (VoD) service providers have seen their bandwidth costs increase, a shift towards peer-to-peer (P2P) architectures has been made. Indeed a number of recent research efforts have focused on offloading media server using P2P architectures, however the...
MPEG published a new international standard, MMT (MPEG Media Transport) for efficient transport of MPEG media over all IP networks in June 2014. This paper shows its potential as standard for adaptive media service system. We applied this standard to video streaming system and shows its efficiency transmission in limited resource network environment. The system has been tested in harsh condition such...
We present a content-based caching architecture for scalable MMT video delivery. Our architecture places a caching proxy in the path between an MMT server and its clients. Between an MMT server and a caching proxy, we exploit the popular HTTP protocol to reliably synchronize the video contents by their fragments while the caching proxy delivers the MMT asset to the clients via the standard MMTP protocol...
This paper introduces a novel content classification scheme in video-on-demand (VoD) based on the emerging standard of MPEG media transport (MMT). Content classification is necessary and reasonable, due to the fact that a better user experience may be obtained if the requested video is organized and presented in different ways according to various user requirements and/or video popularities. For this...
Recently, attracted by the abundant computation and networking resources in the cloud, an increased number of mobile media services have been hosted by the cloud computing platforms. These mobile media clouds (MMCs) run hundreds of thousands of servers and consume megawatts of power with massive carbon emission. Virtualization is adopted to allocate resources elastically from a shared resource pool...
Interactive multimedia systems with guaranteed service quality require complex integration of servers, broadband networks and terminals. A critical issue is development of such systems based on standards in order to achieve interoperability comparable to the Internet. The task for devising standardized interactive networked multimedia systems has been undertaken by the Digital Audio Visual Council...
This paper proposes a smart, easy-deployed remote monitor system based on Android system. Different from normal monitor system, what you need to deploy the monitor system are only a camera, a PC with Linux system and an Android smart phone, which is commonly held by people. The system is based on the open-source library live555, FFmpeg and x264, thus it is readily extendable. In this system, the video...
NTT Media Intelligence Laboratories and DWANGO Co., Ltd. have jointly developed a virtual reality system that enables users to have an immersive experience visiting a remote site. This system makes it possible for users to watch video content wherever they want to watch it by using interactive streaming technology that selectively streams the user's watching section at a high bitrate in a limited...
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