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ISO/IEC TR 21000-12:2005

ISO/IEC TR 21000-12:2005

$36.40

Information technology — Multimedia framework (MPEG-21) — Part 12: Test Bed for MPEG-21 Resource Delivery

Published By Publication Date Number of Pages
ISO 2005-04 28
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ISO/IEC TR 21000-12:2005 specifies a test bed that is designed to assist in performance assessment of MPEG-21, Scalable Video Codec (SVC) for streaming applications, and for the evaluation of resource delivery technologies over unreliable packet-switched networks. The streaming protocols used in the test bed are based on RTSP and RTP. The Network Adaptation QoS mechanism of MPEG-21 Digital Item Adaptation (DIA) is used for bandwidth-scalable streaming. A subset of MPEG-4 IPMP is also included in the test bed so that encrypted streaming and layered access functionality of a DRM system can be tested for different SVC designs.

The test bed includes a network emulator GUI that interfaces with a Linux-based network emulator, NistNet, for real-time emulation of channel characteristics of various networks. Therefore:

  • Various scalable codec (audio, video, scene composition) technologies can be evaluated.
  • Various packetization methods and file formats can be evaluated.
  • Various multimedia streaming rate control and error control mechanisms can be plugged into the test bed and evaluated.

In summary, the following MPEG technologies are demonstrated by the test bed:

  • MPEG scalable audio and video codecs;
  • MPEG-4 on IP;
  • MPEG-4 IPMP (a small subset); and
  • MPEG-21 DIA Network Adaptation QoS.

The architecture and the API are not tied to any particular media codecs. However, currently only the MPEG-4 FGS video and MPEG-4 BSAC audio are officially supported by the software. The support for ISO/IEC 21000-13 (MPEG-21 part 13) SVC will be included when that International Standard is ready.

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ISO/IEC TR 21000-12:2005
$36.40