4.5MPEG Media Transport (MMT)
According to N10496 issued at the 87th meeting, there is a need for a transport and file format friendly stream format. Error resilience of current MPEG streams might not be optimal. The potential gains of joint optimization of coding and transport are not known. Conversions between different transport mechanisms like from MPEG-2 Transport Stream to MPEG Program Stream are not straight forward or defined. Furthermore, MPEG does not provide any hint on how to adapt content to different networks.
A workshop on MPEG Media Transport was held at this meeting. The more than 80 participants listened to eight presentations from industry and universities as shown in N10853 Presentations of MMT Workshop in London 2009. MPEG technology like MPEG-2 TS and MP4 File Format are universally used. Challenges related to the current use of this MPEG technology in the context of new applications, extensibility, mobile networks, and hybrid delivery as well research challenges like FEC, QoS, P2P, and cross layer optimization were identified.
The current state of the discussion on terms of use cases and requirements is summarized in N10854 Draft use case and requirement on MMT. MPEG encourages National Bodies to analyse the document and to provide further input related to MMT.
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– Systems report
Source: Young-Kwon Lim, Chair
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