draft-ietf-xrblock-rtcp-xr-decodability-08.txt   draft-ietf-xrblock-rtcp-xr-decodability-09.txt 
Network Working Group R. Huang Network Working Group R. Huang
Internet-Draft Q. Wu Internet-Draft Q. Wu
Intended status: Standards Track Huawei Intended status: Standards Track Huawei
Expires: August 29, 2013 H. Asaeda Expires: August 29, 2013 H. Asaeda
NICT NICT
G. Zorn, Ed. G. Zorn
Network Zen Network Zen
February 25, 2013 February 25, 2013
RTP Control Protocol (RTCP) Extended Report (XR) Block for MPEG2 Program RTP Control Protocol (RTCP) Extended Report (XR) Block for MPEG2
Specific Information (PSI) Independent Transport Stream (TS) Transport Stream (TS) Program Specific Information (PSI) Independent
Decodability Statistics Metric reporting Decodability Statistics Metrics reporting
draft-ietf-xrblock-rtcp-xr-decodability-08 draft-ietf-xrblock-rtcp-xr-decodability-09
Abstract Abstract
An MPEG2 Transport Stream (TS) is a standard container format used in An MPEG2 Transport Stream (TS) is a standard container format used in
the transmission and storage of multimedia data. Unicast/Multicast the transmission and storage of multimedia data. Unicast/Multicast
MPEG2 TS over RTP is widely deployed in IPTV systems. This document MPEG2 TS over RTP is widely deployed in IPTV systems. This document
defines an RTP Control Protocol (RTCP) Extended Report (XR) Block defines an RTP Control Protocol (RTCP) Extended Report (XR) Block
that allows the reporting of MPEG2 Program Specific Information (PSI) that allows the reporting of MPEG2 TS Program Specific Information
Independent TS decodability statistics metrics related to (PSI) Independent decodability statistics metrics related to
transmissions of MPEG2 TS over RTP. transmissions of MPEG2 TS over RTP.
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). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
skipping to change at page 2, line 16 skipping to change at page 2, line 16
publication of this document. Please review these documents publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License. described in the Simplified BSD License.
Table of Contents Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. MPEG Transport Stream Decodability Metrics . . . . . . . . 3 1.1. MPEG2 Transport Stream Decodability Metrics . . . . . . . 3
1.2. RTCP and RTCP XR Reports . . . . . . . . . . . . . . . . . 3 1.2. RTCP and RTCP XR Reports . . . . . . . . . . . . . . . . . 3
1.3. Performance Metrics Framework . . . . . . . . . . . . . . 3 1.3. Performance Metrics Framework . . . . . . . . . . . . . . 3
1.4. Applicability . . . . . . . . . . . . . . . . . . . . . . 3 1.4. Applicability . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4 2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1. Standards Language . . . . . . . . . . . . . . . . . . . . 4 2.1. Standards Language . . . . . . . . . . . . . . . . . . . . 4
3. MPEG PSI Independent TS Decodability Statistics Metrics 3. MPEG2 TS PSI Independent Decodability Statistics Metrics
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4. SDP Signaling . . . . . . . . . . . . . . . . . . . . . . . . 7 4. SDP Signaling . . . . . . . . . . . . . . . . . . . . . . . . 7
4.1. SDP rtcp-xr-attrib Attribute Extension . . . . . . . . . . 7 4.1. SDP rtcp-xr-attrib Attribute Extension . . . . . . . . . . 7
4.2. Offer/Answer Usage . . . . . . . . . . . . . . . . . . . . 8 4.2. Offer/Answer Usage . . . . . . . . . . . . . . . . . . . . 8
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 8 5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 8
5.1. New RTCP XR Block Type value . . . . . . . . . . . . . . . 8 5.1. New RTCP XR Block Type value . . . . . . . . . . . . . . . 8
5.2. New RTCP XR SDP Parameter . . . . . . . . . . . . . . . . 8 5.2. New RTCP XR SDP Parameter . . . . . . . . . . . . . . . . 8
5.3. Contact information for registrations . . . . . . . . . . 8 5.3. Contact information for registrations . . . . . . . . . . 8
6. Security Considerations . . . . . . . . . . . . . . . . . . . 8 6. Security Considerations . . . . . . . . . . . . . . . . . . . 8
7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 9 7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 9
8. References . . . . . . . . . . . . . . . . . . . . . . . . . . 9 8. References . . . . . . . . . . . . . . . . . . . . . . . . . . 9
8.1. Normative References . . . . . . . . . . . . . . . . . . . 9 8.1. Normative References . . . . . . . . . . . . . . . . . . . 9
8.2. Informative References . . . . . . . . . . . . . . . . . . 9 8.2. Informative References . . . . . . . . . . . . . . . . . . 9
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 10 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 10
1. Introduction 1. Introduction
1.1. MPEG Transport Stream Decodability Metrics 1.1. MPEG2 Transport Stream Decodability Metrics
The European Telecommunications Standards Institute (ETSI) has The European Telecommunications Standards Institute (ETSI) has
defined a set of syntax and information consistency tests and defined a set of syntax and information consistency tests and
corresponding indicators [ETSI] that are recommended for the corresponding indicators [ETSI] that are recommended for the
monitoring of MPEG2 Transport Streams [ISO-IEC.13818-1.2007]. The monitoring of MPEG2 Transport Streams [ISO-IEC.13818-1.2007]. The
tests and corresponding indicators are grouped according to priority: tests and corresponding indicators are grouped according to priority:
o First priority - Necessary for decodability (basic monitoring) o First priority - Necessary for decodability (basic monitoring)
o Second priority - Recommended for continuous or periodic o Second priority - Recommended for continuous or periodic
monitoring monitoring
skipping to change at page 4, line 15 skipping to change at page 4, line 15
system management tool. system management tool.
2. Terminology 2. Terminology
2.1. Standards Language 2.1. Standards Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [RFC2119]. document are to be interpreted as described in RFC 2119 [RFC2119].
3. MPEG PSI Independent TS Decodability Statistics Metrics Block 3. MPEG2 TS PSI Independent Decodability Statistics Metrics Block
This block reports MPEG PSI Independent TS decodability statistics This block reports MPEG2 TS PSI Independent decodability statistics
metrics beyond the information carried in the standard RTCP packet metrics beyond the information carried in the standard RTCP packet
format, which are measured at the receiving end of the RTP stream. format, which are measured at the receiving end of the RTP stream.
It describes eight metrics specified in ETSI TR 101 290. Information It describes eight metrics specified in ETSI TR 101 290. Information
is reported about basic monitoring parameters necessary to ensure is reported about basic monitoring parameters necessary to ensure
that the TS can be decoded including: that the TS can be decoded including:
o Transport Stream Synchronization Losses o Transport Stream Synchronization Losses
o Sync byte errors o Sync byte errors
o Continuity count errors o Continuity count errors
and continuous monitoring parameters necessary to ensure the and continuous monitoring parameters necessary to ensure the
continuous decoding including: continuous decoding including:
o Transport errors o Transport errors
o Program Clock Reference (PCR) errors o Program Clock Reference (PCR) errors
o PCR repetition errors o PCR repetition errors
o PCR discontinuity indicator errors o PCR discontinuity indicator errors
o PCR accuracy errors o PCR accuracy errors
o Presentation Time Stamp (PTS) errors o Presentation Time Stamp (PTS) errors
The other parameters are ignored since they do not apply to all MPEG The other parameters are ignored since they do not apply to all MPEG2
implementations. For further information on these parameters, see implementations. For further information on these parameters, see
[ETSI]. [ETSI].
The MPEG2 PSI Independent TS Decodability Metrics Block has the The MPEG2 TS PSI Independent Decodability Metrics Block has the
following format: following format:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| BT=MPITD | Reserved | block length | | BT=MTPID | Reserved | block length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| SSRC of source | | SSRC of source |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| begin_seq | end_seq | | begin_seq | end_seq |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| TS_sync_loss_count | | TS_sync_loss_count |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Sync_byte_error_count | | Sync_byte_error_count |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Continuity_count_error_count | | Continuity_count_error_count |
skipping to change at page 5, line 35 skipping to change at page 5, line 35
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| PCR_discontinuity_indicator_error_count | | PCR_discontinuity_indicator_error_count |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| PCR_accuracy_error_count | | PCR_accuracy_error_count |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| PTS_error_count | | PTS_error_count |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
block type (BT): 8 bits block type (BT): 8 bits
The MPEG PSI Independent TS Decodability Metrics Block is The MPEG2 TS PSI Independent Decodability Metrics Block is
identified by the constant <MPITD>. identified by the constant <MTPID>.
Reserved: 8 bits Reserved: 8 bits
These bits are reserved. They MUST be set to zero by senders These bits are reserved. They MUST be set to zero by senders
ignored by receivers (See [RFC6709] section 4.2). ignored by receivers (See [RFC6709] section 4.2).
block length: 16 bits block length: 16 bits
The constant 11, in accordance with the definition of this field The constant 11, in accordance with the definition of this field
in Section 3 of RFC 3611. The block MUST be discarded if the in Section 3 of RFC 3611. The block MUST be discarded if the
skipping to change at page 7, line 45 skipping to change at page 7, line 45
RFC 3611 defines the use of SDP (Session Description Protocol) RFC 3611 defines the use of SDP (Session Description Protocol)
[RFC4566] for signaling the use of RTCP XR blocks. However XR blocks [RFC4566] for signaling the use of RTCP XR blocks. However XR blocks
MAY be used without prior signaling (See section 5 of RFC3611). MAY be used without prior signaling (See section 5 of RFC3611).
4.1. SDP rtcp-xr-attrib Attribute Extension 4.1. SDP rtcp-xr-attrib Attribute Extension
This session augments the SDP attribute "rtcp-xr" defined in Section This session augments the SDP attribute "rtcp-xr" defined in Section
5.1 of RFC 3611 by providing an additional value of "xr-format" to 5.1 of RFC 3611 by providing an additional value of "xr-format" to
signal the use of the report block defined in this document. signal the use of the report block defined in this document.
xr-format =/ xr-pitd-block xr-format =/ xr-tpid-block
xr-pitd-block = "psi-indep-ts-decodability" xr-tpid-block = "ts-psi-indep-decodability"
4.2. Offer/Answer Usage 4.2. Offer/Answer Usage
When SDP is used in offer-answer context, the SDP Offer/Answer usage When SDP is used in offer-answer context, the SDP Offer/Answer usage
defined in [RFC3611] for unilateral "rtcp-xr" attribute parameters defined in [RFC3611] for unilateral "rtcp-xr" attribute parameters
applies. For detailed usage of Offer/Answer for unilateral applies. For detailed usage of Offer/Answer for unilateral
parameter, refer to section 5.2 of [RFC3611]. parameter, refer to section 5.2 of [RFC3611].
5. IANA Considerations 5. IANA Considerations
New report block types for RTCP XR are subject to IANA registration. New report block types for RTCP XR are subject to IANA registration.
For general guidelines on IANA allocations for RTCP XR, refer to For general guidelines on IANA allocations for RTCP XR, refer to
Section 6.2 ofRFC 3611. Section 6.2 of RFC 3611.
5.1. New RTCP XR Block Type value 5.1. New RTCP XR Block Type value
This document assigns the block type value MPITD in the IANA " RTP This document assigns the block type value MTPID in the IANA " RTP
Control Protocol Extended Reports (RTCP XR) Block Type Registry " to Control Protocol Extended Reports (RTCP XR) Block Type Registry " to
the " MPEG PSI Independent Transport Stream Decodability Statistics the "MPEG2 Transport Stream PSI Independent Decodability Statistics
Metrics Block". Metrics Block".
[Note to RFC Editor: please replace MPITD with the IANA provided RTCP [Note to RFC Editor: please replace MPITD with the IANA provided RTCP
XR block type for this block.] XR block type for this block.]
5.2. New RTCP XR SDP Parameter 5.2. New RTCP XR SDP Parameter
This document also registers a new parameter "psi-indep-ts- This document also registers a new parameter "ts-psi-indep-
decodability" in the "RTP Control Protocol Extended Reports (RTCP XR) decodability" in the "RTP Control Protocol Extended Reports (RTCP XR)
Session Description Protocol (SDP) Parameters Registry". Session Description Protocol (SDP) Parameters Registry".
5.3. Contact information for registrations 5.3. Contact information for registrations
The contact information for the registrations is: The contact information for the registrations is:
Qin Wu Qin Wu
sunseawq@huawei.com sunseawq@huawei.com
101 Software Avenue, Yuhua District 101 Software Avenue, Yuhua District
skipping to change at page 10, line 31 skipping to change at page 10, line 31
Email: bill.wu@huawei.com Email: bill.wu@huawei.com
Hitoshi Asaeda Hitoshi Asaeda
National Institute of Information and Communications Technology National Institute of Information and Communications Technology
4-2-1 Nukui-Kitamachi 4-2-1 Nukui-Kitamachi
Koganei, Tokyo 184-8795 Koganei, Tokyo 184-8795
Japan Japan
Email: asaeda@nict.go.jp Email: asaeda@nict.go.jp
Glen Zorn (editor) Glen Zorn
Network Zen Network Zen
227/358 Thanon Sanphawut 227/358 Thanon Sanphawut
Bang Na, Bangkok 10260 Bang Na, Bangkok 10260
Thailand Thailand
Phone: +66 (0) 909-201060 Phone: +66 (0) 909-201060
Email: glenzorn@gmail.com Email: glenzorn@gmail.com
 End of changes. 19 change blocks. 
24 lines changed or deleted 24 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/