[xiph-commits] r14269 - trunk/vorbis/doc

lu_zero at svn.xiph.org lu_zero at svn.xiph.org
Tue Dec 4 02:28:47 PST 2007


Author: lu_zero
Date: 2007-12-04 02:28:46 -0800 (Tue, 04 Dec 2007)
New Revision: 14269

Modified:
   trunk/vorbis/doc/draft-ietf-avt-rtp-vorbis-08.txt
   trunk/vorbis/doc/draft-ietf-avt-rtp-vorbis-08.xml
Log:
Clarify rate and channels meaning in rtpmap and missing configuration behaviour

Modified: trunk/vorbis/doc/draft-ietf-avt-rtp-vorbis-08.txt
===================================================================
--- trunk/vorbis/doc/draft-ietf-avt-rtp-vorbis-08.txt	2007-12-03 08:50:48 UTC (rev 14268)
+++ trunk/vorbis/doc/draft-ietf-avt-rtp-vorbis-08.txt	2007-12-04 10:28:46 UTC (rev 14269)
@@ -3,7 +3,7 @@
 
 AVT Working Group                                             L. Barbato
 Internet-Draft                                                  Xiph.Org
-Expires: April 30, 2008                                     Oct 28, 2007
+Expires: May 20, 2008                                       Nov 17, 2007
 
 
                       draft-ietf-avt-rtp-vorbis-08
@@ -32,7 +32,7 @@
    The list of Internet-Draft Shadow Directories can be accessed at
    http://www.ietf.org/shadow.html.
 
-   This Internet-Draft will expire on April 30, 2008.
+   This Internet-Draft will expire on May 20, 2008.
 
 Copyright Notice
 
@@ -52,9 +52,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                 [Page 1]
+Barbato                   Expires May 20, 2008                  [Page 1]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
 Editors Note
@@ -108,9 +108,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                 [Page 2]
+Barbato                   Expires May 20, 2008                  [Page 2]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
 1.  Introduction
@@ -164,9 +164,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                 [Page 3]
+Barbato                   Expires May 20, 2008                  [Page 3]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
        0                   1                   2                   3
@@ -220,9 +220,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                 [Page 4]
+Barbato                   Expires May 20, 2008                  [Page 4]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
    Sequence number: 16 bits
@@ -276,9 +276,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                 [Page 5]
+Barbato                   Expires May 20, 2008                  [Page 5]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
    This field specifies the kind of Vorbis data stored in this RTP
@@ -332,9 +332,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                 [Page 6]
+Barbato                   Expires May 20, 2008                  [Page 6]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
    The Vorbis packet length header is the length of the Vorbis data
@@ -388,9 +388,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                 [Page 7]
+Barbato                   Expires May 20, 2008                  [Page 7]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
    decode the packets is the one indexed by the ident value.
@@ -444,9 +444,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                 [Page 8]
+Barbato                   Expires May 20, 2008                  [Page 8]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
 3.1.  In-band Header Transmission
@@ -500,9 +500,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                 [Page 9]
+Barbato                   Expires May 20, 2008                  [Page 9]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
        0                   1                   2                   3
@@ -556,9 +556,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                [Page 10]
+Barbato                   Expires May 20, 2008                 [Page 10]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
 3.2.  Out of Band Transmission
@@ -612,9 +612,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                [Page 11]
+Barbato                   Expires May 20, 2008                 [Page 11]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
        0                   1                   2                   3
@@ -668,9 +668,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                [Page 12]
+Barbato                   Expires May 20, 2008                 [Page 12]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
        0                   1                   2                   3
@@ -724,9 +724,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                [Page 13]
+Barbato                   Expires May 20, 2008                 [Page 13]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
    fragmented packets MUST be the same as the first packet sent, with
@@ -780,9 +780,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                [Page 14]
+Barbato                   Expires May 20, 2008                 [Page 14]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
       Packet 2:
@@ -836,9 +836,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                [Page 15]
+Barbato                   Expires May 20, 2008                 [Page 15]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
       Packet 3:
@@ -892,9 +892,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                [Page 16]
+Barbato                   Expires May 20, 2008                 [Page 16]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
 6.  IANA Considerations
@@ -948,9 +948,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                [Page 17]
+Barbato                   Expires May 20, 2008                 [Page 17]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
    Published specification:
@@ -1004,9 +1004,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                [Page 18]
+Barbato                   Expires May 20, 2008                 [Page 18]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
    Type name:  audio
@@ -1060,9 +1060,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                [Page 19]
+Barbato                   Expires May 20, 2008                 [Page 19]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
    Restriction on usage:
@@ -1116,9 +1116,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                [Page 20]
+Barbato                   Expires May 20, 2008                 [Page 20]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
    of the session reside.
@@ -1172,9 +1172,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                [Page 21]
+Barbato                   Expires May 20, 2008                 [Page 21]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
 8.1.  Stream Radio
@@ -1228,9 +1228,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                [Page 22]
+Barbato                   Expires May 20, 2008                 [Page 22]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
 10.  Acknowledgments
@@ -1284,9 +1284,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                [Page 23]
+Barbato                   Expires May 20, 2008                 [Page 23]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
    [10]  "Ogg Vorbis I specification:  Codec setup and packet decode.
@@ -1340,9 +1340,9 @@
 
 
 
-Barbato                  Expires April 30, 2008                [Page 24]
+Barbato                   Expires May 20, 2008                 [Page 24]
 
-Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Oct 2007
+Internet-Draft        draft-ietf-avt-rtp-vorbis-08              Nov 2007
 
 
 Full Copyright Statement
@@ -1396,6 +1396,6 @@
 
 
 
-Barbato                  Expires April 30, 2008                [Page 25]
+Barbato                   Expires May 20, 2008                 [Page 25]
 
 

Modified: trunk/vorbis/doc/draft-ietf-avt-rtp-vorbis-08.xml
===================================================================
--- trunk/vorbis/doc/draft-ietf-avt-rtp-vorbis-08.xml	2007-12-03 08:50:48 UTC (rev 14268)
+++ trunk/vorbis/doc/draft-ietf-avt-rtp-vorbis-08.xml	2007-12-04 10:28:46 UTC (rev 14269)
@@ -396,7 +396,7 @@
 client, both in-band and out-of-band which is detailed below. SDP 
 delivery is typically used to set up an initial state for the client 
 application. The changes may be due to different codebooks as well as 
-different bitrates of the stream.
+different bitrates of the RTP stream.
 </t>
 
 <t>
@@ -589,7 +589,10 @@
 <t>
 Unlike the loss of raw Vorbis payload data, loss of a configuration header
 lead to a situation where it will not be possible to successfully decode the
-stream. Implementations MAY try to recover from error requesting again the missing Configuration, the baseline reaction SHOULD be either reset or end the connection.
+stream. Implementations MAY try to recover from error requesting again the
+missing Configuration or, if the delivery method is in-band, buffer the
+payloads waiting for the Configuration needed to decode them.
+The baseline reaction SHOULD be either reset or end the RTP session.
 </t>
 
 </section>
@@ -1085,9 +1088,12 @@
 
 <t>
 The port value is specified by the server application bound to the address
-specified in the c= line. The bitrate value and channels specified in the
-rtpmap attribute MUST match the Vorbis sample rate value.  An example is found
-below.
+specified in the c= line. The sample rate and channel count value specified
+in the rtpmap attribute SHOULD match the current Vorbis stream or considered
+the maximum number of channels to be expected and the least common multiple
+for the session. The Configuration payload delivers the exact information,
+thus the SDP information SHOULD be considered as hint.
+An example is found below.
 </t>
 
 <section anchor="SDP Example" title="SDP Example">



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