White Papers

Mobile TV – Ensuring Quality of Experience

This white paper describes why maximizing the quality of experience for end users of mobile TV services is the best way to ensure that those services achieve commercial success. Drawing heavily on lessons learned during the deployment of Orange France’s successful 3GPP mobile TV service, the paper shows that outstanding video and audio quality, high service reliability, and intuitive content navigation are essential in achieving this objective.

 

 

Envivio IP-based Statistical Rate Control

This paper describes how to measure the video quality of multiple compressed sources and the quality and bandwidth gained by using Envivio statistical rate control technology. This paper also describes the Envivio open approach to system architecture and how this approach provides significant benefits and advantages for mobile broadcast deployments.

 

 

IP Streaming of MPEG-4: Native RTP vs MPEG-2 Transport Stream

MPEG-4 AVC/AAC has been accepted as an audio-visual encoding format by a number of standards bodies and is poised for wide adoption in IP-based video services over consumer broadband connections (IPTV). In spite of the agreement on the encoding format, there are several competing specifications for the transport of MPEG-4 over IP networks. Because service providers have more experience with MPEG-2 as compared with pure IP-based delivery of services, some IPTV deployments have utilized MPEG-2 Transport Stream (TS) for the carriage of MPEG-4 data - even though this approach was not designed to make use of MPEG-4-specific encoding structures. TS-based transport of MPEG-4 comes in two flavors: TS over UDP/IP and TS over RTP/UDP/IP. In this paper  these transport mechanisms will be compared with the so-called “native RTP” transport of MPEG-4 – the direct carriage of MPEG-4 encoded data in RTP packets. The benefits of the native RTP approach are highlighted, focusing on IPTV applications such as live broadcast and video on demand (VOD).

 

 

Understanding MPEG-4: Technologies, Advantages and Markets

This whitepaper, prepared by the MPEG Industry Forum presents an overview of the technology and business landscape  - the applications, advantages and benefits of MPEG-4 -- and presents this compression technology as the new media standard.

 

 

Scalability And Multi-Rate Coding In MPEG-4 And Envivio Future Implementation -- Addressing The Problem Of Adaptive Video Streaming Over Heterogeneous Networks

The variety of capabilities and qualities of different networks and decoders obliges content distributors to produce assets targeted for particular bandwidths and decoding platforms. On IP networks, the problem is even more complex. Since there is hardly any guarantee on the bandwidth available, the quality of service may degrade unexpectedly and the bandwidth reduced in capacity. Despite these varying conditions, MPEG-4 allows continuous transmission of content. MPEG-4 has been designed with these network constraints in mind, and a set of features and algorithms have been incorporated into the standard to overcome these issues. Among them, multi-rate coding is the most promising solutions.

 

 

H.264 & IPTV Over DSL -- Enabling New Telco Revenue Opportunities

This whitepaper discusses how the MPEG-4 AVC/H.264 video coding standard enables telcos and ISPs to deliver high-quality video and television over digital subscriber lines (DSL), creating new revenue-generating opportunities.

 

 

MPEG-4's Binary Format for Scene Description

This paper consists of a tutorial of one portion of the MPEG-4 tool set -- the Binary Format for Scenes, BIFS (a.k.a. MPEG-4 Part 11). BIFS is the compressed format in which scenes are defined and modified. This paper serves as a brief introduction to the capabilities and intricacies of BIFS.