draft-ietf-payload-rtp-sbc-04.txt   draft-ietf-payload-rtp-sbc-05.txt 
Working Group PAYLOAD C. Hoene Working Group PAYLOAD C. Hoene
Internet Draft Symonics GmbH Internet Draft Symonics GmbH
Intended status: Standards Track F. de Bont Intended status: Standards Track F. de Bont
Expires: July 2013 Philips Electronics Expires: January 2014 Philips Electronics
January 10, 2013 July 3, 2013
RTP Payload Format for Bluetooth's SBC Audio Codec RTP Payload Format for Bluetooth's SBC Audio Codec
draft-ietf-payload-rtp-sbc-04 draft-ietf-payload-rtp-sbc-05
Status of this Memo Status of this Memo
This Internet-Draft is submitted in full conformance with the This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79. provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF), its areas, and its working groups. Note that Task Force (IETF), its areas, and its working groups. Note that
other groups may also distribute working documents as Internet- other groups may also distribute working documents as Internet-
Drafts. Drafts.
skipping to change at page 1, line 32 skipping to change at page 1, line 32
months and may be updated, replaced, or obsoleted by other documents months and may be updated, replaced, or obsoleted by other documents
at any time. It is inappropriate to use Internet-Drafts as at any time. It is inappropriate to use Internet-Drafts as
reference material or to cite them other than as "work in progress." reference material or to cite them other than as "work in progress."
The list of current Internet-Drafts can be accessed at The list of current Internet-Drafts can be accessed at
http://www.ietf.org/ietf/1id-abstracts.txt http://www.ietf.org/ietf/1id-abstracts.txt
The list of Internet-Draft Shadow Directories can be accessed at The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html http://www.ietf.org/shadow.html
This Internet-Draft will expire on July 10, 2013. This Internet-Draft will expire on July 3, 2013.
Copyright Notice Copyright Notice
Copyright (c) 2013 IETF Trust and the persons identified as the Copyright (c) 2013 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
skipping to change at page 2, line 22 skipping to change at page 2, line 22
Profile (A2DP) Specification written by the Bluetooth(r) Special Profile (A2DP) Specification written by the Bluetooth(r) Special
Interest Group (SIG). The payload format is designed to be able to Interest Group (SIG). The payload format is designed to be able to
interoperate with existing Bluetooth A2DP devices, to provide high interoperate with existing Bluetooth A2DP devices, to provide high
streaming audio quality, interactive audio transmission over the streaming audio quality, interactive audio transmission over the
internet, and ultra-low delay coding for jam sessions on the internet, and ultra-low delay coding for jam sessions on the
internet. This document contains also a media type registration internet. This document contains also a media type registration
which specifies the use of the RTP payload format. which specifies the use of the RTP payload format.
Table of Contents Table of Contents
1. Introduction ................................................. 3 1. Introduction .................................................. 3
2. Conventions used in this Document ............................ 3 2. Conventions used in this Document ............................. 3
3. Background ................................................... 3 3. Background .................................................... 3
3.1. SBC Frame Structure ..................................... 5 3.1. SBC Frame Structure ...................................... 5
3.2. Frame Header ............................................ 5 3.2. Frame Header ............................................. 5
3.3. Remaining Frame Part .................................... 8 3.3. Remaining Frame Part .................................... 8
4. Usage Scenarios .............................................. 8 4. Usage Scenarios ............................................... 8
4.1. Scenario 1: Interconnection of A2DP Devices ............. 8 4.1. Scenario 1: Interconnection of A2DP Devices .............. 8
4.2. Scenario 2: High Quality Interactive Audio Transmissions 9 4.2. Scenario 2: High Quality Interactive Audio Transmissions . 9
4.3. Scenario 3: Ensembles performing over a Network ......... 9 4.3. Scenario 3: Ensembles performing over a Network .......... 9
5. Header Usage ................................................ 10 5. Header Usage ................................................. 10
6. Payload Format .............................................. 11 6. Payload Format ............................................... 11
7. Payload Format Parameters ................................... 11 7. Payload Format Parameters .................................... 11
7.1. Media Type Registration for SBC ........................ 11 7.1. Media Type Registration for SBC ......................... 11
7.1.1. Capabilities: A2DP Modes .......................... 13 7.1.1. Capabilities: A2DP Modes ........................... 13
7.1.2. Capabilities: Other Modes ......................... 14 7.1.2. Capabilities: Other Modes .......................... 14
7.2. Mapping to SDP Parameters .............................. 14 7.2. Mapping to SDP Parameters ............................... 14
7.2.1. Offer-Answer Model Considerations ................. 15 7.2.1. Offer-Answer Model Considerations .................. 15
7.2.2. Declarative SDP Considerations .................... 17 7.2.2. Declarative SDP Considerations ..................... 17
8. Congestion Control .......................................... 17 8. Congestion Control ........................................... 17
9. Packet Loss Concealment ..................................... 18 9. Packet Loss Concealment ...................................... 18
10. Security Considerations .................................... 18 10. Security Considerations ..................................... 18
11. IANA Considerations......................................... 19 11. IANA Considerations ......................................... 19
12. References ................................................. 20 12. References .................................................. 20
12.1. Normative References .................................. 20 12.1. Normative References ................................... 20
12.2. Informative References ................................ 20 12.2. Informative References ................................. 20
13. Acknowledgments ............................................ 22 13. Acknowledgments ............................................. 22
1. Introduction 1. Introduction
The Bluetooth(r) Special Interest Group (SIG) specifies in the The Bluetooth(r) Special Interest Group (SIG) specifies in the
Advanced Audio Distribution Profile (A2DP) [A2DPV12] a mono and Advanced Audio Distribution Profile (A2DP) [A2DPV12] a mono and
stereo high quality audio subband codec (SBC). This document stereo high quality audio subband codec (SBC). This document
specifies the payload format for the encapsulation of SBC encoded specifies the payload format for the encapsulation of SBC encoded
audio frames into the Real-time Transport Protocol (RTP). audio frames into the Real-time Transport Protocol (RTP).
SBC has a low computational complexity at modest compression rates. SBC has a low computational complexity at modest compression rates.
 End of changes. 4 change blocks. 
31 lines changed or deleted 31 lines changed or added

This html diff was produced by rfcdiff 1.41. The latest version is available from http://tools.ietf.org/tools/rfcdiff/