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Due to the diversity in todays communication networks, adaptability is one of the key requirements in development of a quality multimedia streaming client. In this paper, a system for verification of Hybrid Broadcast Broadband TV (HbbTV) standard, with special emphasis on the Moving Picture Experts Group Dynamic Adaptive Streaming over Hypertext Transfer Protocol (MPEG-DASH) functionality, is given...
Archiving video conferences is an important feature that allows storing conferences for later playback or for any other possible usage. This part of videoconferencing has never been an active area for most conferencing solutions. Many aspects of archiving conferencing solutions, including application sharing as well as document sharing among the participants, are not properly considered. In this paper...
In the era of universal multimedia access (UMA), applications like video conferencing, surveillance and streaming are challenged by the multiplicity of devices. Since adaptation is the newly applied practice for digital video content customization, in this demo, we present a simple approach to adapt H.264 videos, in the compressed domain, for heterogeneous devices and mobile environments. Our approach...
Streaming video contents from a central media repository to other video rendering devices over a network have increased in usage in recent times. However, there is conspicuous missing of trick-play features (fast forward, fast rewind, slow forward and slow rewind) for a streamed video data in most commercially available streaming solutions. This lack of trick play feature is mainly due to the processing...
In this article an interoperable framework for the delivery of scalable media resources (e.g., in the standardized scalable video coding format) is presented. The framework provides support for video on demand as well as multicast streaming, and performs efficient, generic, and interoperable adaptation of streamed content based on MPEG- 21 Digital Item Adaptation. The server as well as the clients...
Scalable media contents, such as the new MPEG-4 scalable video codec enable to easily retrieve different qualities of the media content by simply disregarding certain media segments. The MPEG-21-based codec-agnostic adaptation approach supports this concept by introducing anXML-based bitstream syntax description (BSD) which describes the different segments of a media content. Based on this BSD, an...
A key objective of the ENTHRONE II Project is the ability to optimise the delivery of multimedia content to a wide group of heterogeneous users. One example of this is in the cooperative deployment of adaptation and caching functionality in the edge network. This hybrid approach makes it possible not only to store content locally, thus minimising the cost incurred through subsequent requests, but...
A scheme that exploits the broadcast nature of the wireless communication in order to achieve multicast content delivery is presented in this paper. As opposed to broadcasting, this method enables the clients to determine on-line the delivered content, and thus preserves the advantages of an individual service. On the other hand, a multicast content delivery is much more efficient than a unicast content...
Video-streaming can now be offered on third-generation (3G) mobile networks. Most research efforts have focused on video download. This paper presents a detailed study of challenges faced for successfully deploying applications requiring life video upload. Both subjective and objective qualities as well as the effects of mobility are analyzed on real 3G networks. Consequently, video profiles are identified...
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