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Updates to RTP Payload Format for H.263+ Video: April 1998 Draft

This document outlines the April 1998 update to the RTP payload format for H.263+ video, detailing significant modifications to improve efficiency and functionality. Key changes include the removal of feedback backchannels, unification of packet types, and adjustments to the bit representation of picture headers. Notably, leading zero bits can be elided, and the packet structure has been optimized for redundancy. The draft, presented at the Washington IETF, has undergone editorial cleanups and is now ready for last call consideration, supporting two implementations referenced from H.323v2.

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Updates to RTP Payload Format for H.263+ Video: April 1998 Draft

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  1. RTP Payload Format for H.263+ April 1998 update draft-ietf-avt-rtp-h263-video-01.txt Jörg Ott, Universität Bremen TZI jo@tzi.org

  2. Changes since -00 • Take out feedback backchannel • draft-ietf-avt-work-in-progress • Changes announced at Washington IETF • remove SBIT/EBIT (can use zero bits instead) • unify packet types into one (with extensions) • 16 bits, +8 for redundancy, +1-48 for picture header • allow pretty much full H.263+ picture header • elide leading 16 zero bits (P bit)

  3. Changes (2) • Editorial cleanups Summary: • different bits, same functionality • more efficient representation We are done: • two implementations • referenced from H.323v2 • WG Last Call

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