Re: [MMUSIC] An error in SDP syntax regarding r= lines?

[Colin Perkins <csp@isi.edu>]

--> Federico Montesino Pouzols writes:
>	I understand the draft mandates the leading zero from the 
>following paragraph:
>
>o    ``r='' fields specify repeat times for a session.  For example, if
>    a session is active at 10am on Monday and 11am on Tuesday for one
>    hour each week for three months, then the <start time> in the
>    corresponding ``t='' field would be the NTP representation of 10am
>    on the first Monday, the <repeat interval> would be 1 week, the
>    <active duration> would be 1 hour, and the offsets would be zero and
>    25 hours. The corresponding ``t='' field stop time would be the NTP
>    representation of the end of the last session three months later. By
>    default all fields are in seconds, so the ``r='' and ``t='' fields
>    might be:
>
>	So I guess the first offset could be non zero only if the start
>time given in the corresponding t= line were shifted from the actual
>beginning of the session. I believe the first offset is always 0 and it
>could be omitted if backward compatibility were not a concern. Is it
>true?

The ABNF in RFC 2327 does not require the leading zero.

Colin

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