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Even 3 Internet-Draft Polycom 4 Expires: November 11, 2006 May 10, 2006 6 RTP Payload Format for H.263 using RFC2190 to Historic status 7 draft-ietf-avt-rfc2190-to-historic-05.txt 9 Status of this Memo 11 By submitting this Internet-Draft, each author represents that any 12 applicable patent or other IPR claims of which he or she is aware 13 have been or will be disclosed, and any of which he or she becomes 14 aware will be disclosed, in accordance with Section 6 of BCP 79. 16 Internet-Drafts are working documents of the Internet Engineering 17 Task Force (IETF), its areas, and its working groups. Note that 18 other groups may also distribute working documents as Internet- 19 Drafts. 21 Internet-Drafts are draft documents valid for a maximum of six months 22 and may be updated, replaced, or obsoleted by other documents at any 23 time. It is inappropriate to use Internet-Drafts as reference 24 material or to cite them other than as "work in progress." 26 The list of current Internet-Drafts can be accessed at 27 http://www.ietf.org/ietf/1id-abstracts.txt. 29 The list of Internet-Draft Shadow Directories can be accessed at 30 http://www.ietf.org/shadow.html. 32 This Internet-Draft will expire on November 11, 2006. 34 Copyright Notice 36 Copyright (C) The Internet Society (2006). 38 Abstract 40 The first RFC that describes RTP payload format for H.263 is RFC2190. 41 This specification discusses why to move this RFC to historic status. 43 Table of Contents 45 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 46 2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . 4 47 3. Recommendation . . . . . . . . . . . . . . . . . . . . . . . . 5 48 4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 6 49 5. Security Considerations . . . . . . . . . . . . . . . . . . . . 7 50 6. Informative References . . . . . . . . . . . . . . . . . . . . 7 51 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 8 52 Intellectual Property and Copyright Statements . . . . . . . . . . 9 54 1. Introduction 56 The ITU-T recommendation H.263 [H263] specifies the encoding used by 57 ITU-T compliant video-conference codecs. The first version (version 58 1) was approved in 1996 by the ITU and a payload format for 59 encapsulating this H.263 bitstream in the Real-Time Transport 60 Protocol (RTP) is in RFC-2190 [RFC2190]. In 1998 the ITU approved a 61 new version of H.263 [H263P] that is also known as H.263 plus. This 62 version added optional features and a new payload format is now in 63 RFC-2429 [RFC2429]. RFC-2429 is capable of carrying encoded video 64 bit streams that are using only the basic H.263 version 1 options. 66 RFC-2429 [RFC2429] states that it does not replace RFC-2190, which 67 continues to be used by existing implementations, and may be required 68 for backward compatibility in new implementations. Implementations 69 using the new features of the 1998 version of H.263 shall use the 70 format described in RFC-2429. 72 RFC-2429 is now being revised and will now include a language that 73 will make it clear that all new implementations MUST use RFC2429-bis 74 [rfc2429bis] for encoding of any version of H.263. 76 2. Terminology 78 The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", 79 "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this 80 document are to be interpreted as described in RFC2119 [RFC2119] and 81 indicate requirement levels for compliant RTP implementations. 83 3. Recommendation 85 RFC-2429 and the rfc2429-bis draft [rfc2429bis] can be used to carry 86 new H.263 payload even if they are using only the features defined in 87 the 1996 version. All the H.263 features that are part of the 1996 88 version are also part of the 1998 version. 90 It is recommended that RFC-2190 will be moved to historic status and 91 that as stated in draft rfc2429-bis [rfc2429bis] new implementations 92 will use the revised draft rfc2429bis and the H263-1998 and H263-2000 93 MIME subtypes. 95 4. IANA Considerations 97 There are no IANA considerations with this specification. 99 5. Security Considerations 101 Security consideration for H263 video RTP payload can be found in the 102 draft rfc2429-bis [rfc2429bis]. Using the payload specification in 103 draft rfc2429-bis instead of RFC2190 does not affect the security 104 consideration since both of them refer to RFC3550 [RFC3550] and 105 RFC3551 [RFC3551] for security considerations. 107 6. Informative References 109 [H263] International Telecommunications Union, "Video coding for 110 low bit rate communication", ITU Recommendation H.263, 111 March 1996. 113 [H263P] International Telecommunications Union, "Video coding for 114 low bit rate communication", ITU Recommendation H.263P, 115 February 1998. 117 [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate 118 Requirement Levels", BCP 14, RFC 2119, March 1997. 120 [RFC2190] Zhu, C., "RTP Payload Format for H.263 Video Streams", 121 RFC 2190, September 1997. 123 [RFC2429] Bormann, C., Cline, L., Deisher, G., Gardos, T., Maciocco, 124 C., Newell, D., Ott, J., Sullivan, G., Wenger, S., and C. 125 Zhu, "RTP Payload Format for the 1998 Version of ITU-T 126 Rec. H.263 Video (H.263+)", RFC 2429, October 1998. 128 [RFC3550] Schulzrinne, H., Casner, S., Frederick, R., and V. 129 Jacobson, "RTP: A Transport Protocol for Real-Time 130 Applications", STD 64, RFC 3550, July 2003. 132 [RFC3551] Schulzrinne, H. and S. Casner, "RTP Profile for Audio and 133 Video Conferences with Minimal Control", STD 65, RFC 3551, 134 July 2003. 136 [rfc2429bis] 137 Ott, J., Sullivan, G., Wenger, S., and R. Even, 138 "draft-ietf-avt-rfc2429-bis-07.txt", December 2004. 140 Author's Address 142 Roni Even 143 Polycom 144 94 Derech Em Hamoshavot 145 Petach Tikva 49130 146 Israel 148 Email: roni.even@polycom.co.il 150 Intellectual Property Statement 152 The IETF takes no position regarding the validity or scope of any 153 Intellectual Property Rights or other rights that might be claimed to 154 pertain to the implementation or use of the technology described in 155 this document or the extent to which any license under such rights 156 might or might not be available; nor does it represent that it has 157 made any independent effort to identify any such rights. Information 158 on the procedures with respect to rights in RFC documents can be 159 found in BCP 78 and BCP 79. 161 Copies of IPR disclosures made to the IETF Secretariat and any 162 assurances of licenses to be made available, or the result of an 163 attempt made to obtain a general license or permission for the use of 164 such proprietary rights by implementers or users of this 165 specification can be obtained from the IETF on-line IPR repository at 166 http://www.ietf.org/ipr. 168 The IETF invites any interested party to bring to its attention any 169 copyrights, patents or patent applications, or other proprietary 170 rights that may cover technology that may be required to implement 171 this standard. Please address the information to the IETF at 172 ietf-ipr@ietf.org. 174 Disclaimer of Validity 176 This document and the information contained herein are provided on an 177 "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS 178 OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET 179 ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, 180 INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE 181 INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED 182 WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. 184 Copyright Statement 186 Copyright (C) The Internet Society (2006). This document is subject 187 to the rights, licenses and restrictions contained in BCP 78, and 188 except as set forth therein, the authors retain all their rights. 190 Acknowledgment 192 Funding for the RFC Editor function is currently provided by the 193 Internet Society.