Subject: [linux-audio-dev] New MWPP Internet-Draft
From: John Lazzaro (lazzaro_AT_CS.Berkeley.EDU)
Date: Mon Apr 15 2002 - 21:15:06 EEST
> Internet-Drafts_AT_ietf.org writes:
>
>
> Title : The MIDI Wire Protocol Packetization (MWPP)
> Author(s) : J. Lazzaro, J. Wawrzynek
> Filename : draft-ietf-avt-mwpp-midi-rtp-03.txt
> Pages : 41
> Date : 12-Apr-02
>
>The MIDI Wire Protocol Packetization (MWPP) is a general-purpose
>RTP packetization for the MIDI command language. MWPP is suitable
>for use in both interactive applications (such as pseudo-wire
>emulation of MIDI cables) and content-delivery applications (such
>as MIDI file streaming). MWPP is designed for use over unicast and
>multicast UDP, and defines MIDI-specific resiliency tools for the
>graceful recovery from packet loss. A lightweight configuration of
>MWPP supports efficient use over TCP. MWPP is compatible with the
>MPEG-4 generic RTP payload format, to support MPEG 4 Audio codecs
>that accept MIDI control input.
>
> A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-avt-mwpp-midi-rtp-03.txt
The change log is a full page, but to summarize:
-- We believe the packetization is feature-complete.
-- Most sections rewritten, to reflect the general-purpose refocus of MWPP.
We anticipate the following trajectory:
[1] About 30% of the packetization in -03 is new or reworked: all of
the MIDI Systems journaling is new, SDP format parameters for
timestamp semantics and journal customization are new, etc. So,
we're expecting feedback on -03 on the changes, with a -04 that
fine-tunes the new features as a result.
[2] After -04, three parallel streams:
-- Recoding sfront's MWPP implementation to reflect the changes
in the I-D in the past 6 months, to reality-test the I-D.
-- Widening the circle of review and comment beyond the current
mailing lists (AVT, linux-audio-developers, and saol-dev) to
get comments from the broader MIDI community.
-- Work begins on ancilliary informative I-D's to explain how to
write senders and receivers for MWPP.
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John Lazzaro -- Research Specialist -- CS Division -- EECS -- UC Berkeley
lazzaro [at] cs [dot] berkeley [dot] edu www.cs.berkeley.edu/~lazzaro
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