ISO/IEC 29341-4-14:2008

Information technology - UPnP Device Architecture - Part 4-14: Audio Video Device Control Protocol - Level 2 - Scheduled Recording Service

ISO/IEC 29341-4-14:2008(E) allows control points to schedule the recording of content, such as bradcast content. The series of ISO/IEC 29341 publications defines an architecture for pervasive peer-to-peer network connectivity of intelligent appliances, wireless devices and PCs. It is designed to bring easy to use, flexible, standards-based connectivity to ad-hoc or unmanaged networks whether in the home, in a small business, public spaces or attached to the Internet.

General Information

• Status: Published
• Publication Date: 27-Nov-2008
• ICS: 35.200 - Interface and interconnection equipment
• Technical Committee: ISO/IEC JTC 1 - Information technology
• Current Stage: DELPUB - Deleted Publication
• Start Date: 14-Sep-2011
• Completion Date: 26-Oct-2025

Relations

• Revised: ISO/IEC 29341-4-14:2011 - Information technology - UPnP Device Architecture - Part 4-14: Audio Video Device Control Protocol - Level 2 - Scheduled Recording Service
• Effective Date: 05-Sep-2023

Overview

ISO/IEC 29341-4-14:2008 specifies the UPnP Audio Video Device Control Protocol (AVDCP) Level 2 Scheduled Recording Service. It defines how UPnP control points (for example, smart home controllers or mobile apps) schedule and manage recordings of content such as broadcast streams. Part of the ISO/IEC 29341 UPnP Device Architecture series, this standard supports peer-to-peer connectivity of appliances, wireless devices and PCs in homes, small businesses and public networks.

Key topics and technical requirements

• Service model: Defines core objects such as recordSchedule and recordTask, their lifecycles and state diagrams (full and minimal implementations).
• State variables and eventing: Standardized state variables (e.g., LastChange, StateUpdateID) and eventing/moderation rules to keep control points synchronized.
• Actions / APIs: A set of UPnP actions for management and query, including browsing schedules/tasks, creating/deleting schedules, enabling/disabling entries, and retrieving conflicts.
• Priority and conflict handling: A priority model for scheduling, ordered priority behaviour, detection and resolution of recording conflicts.
• Content identification and matching: Properties and criteria for matching content (channel IDs, start/duration ranges, program codes, ratings, episode types).
• Output and storage control: Properties for record destinations, desired quality, duplicate handling and persisted recordings.
• XML service description & test suite: Includes XML service descriptions, normative AVDT documents for RecordSchedule/RecordTask, and a testing section to validate conformance.
• Extensibility: Namespace and vendor-extension rules to allow interoperable extensions while preserving standard behavior.

Applications and typical users

• Device manufacturers (DVRs/PVRs, set-top boxes, media servers) implementing UPnP Scheduled Recording Service.
• Software and app developers building UPnP control points for scheduling and managing recordings from mobile apps, smart TVs, and home hubs.
• System integrators and service providers deploying managed or unmanaged home networks requiring interoperable recording control.
• Test labs and QA engineers using the standard’s XML descriptions and test procedures for conformance verification.

Related standards

• Part of the ISO/IEC 29341 UPnP Device Architecture series (UPnP A/V standards). Useful in conjunction with other A/V Device Control Protocol Parts for content discovery, transport control and media servers.

This standard is essential when implementing interoperable scheduled recording functionality over UPnP-enabled networks - enabling automated recording workflows, conflict resolution, and consistent control point behavior across consumer electronics and smart home ecosystems.

Standards Content (Sample)

ISO/IEC 29341-4-14
Edition 1.0 2008-11
INTERNATIONAL
STANDARD
Information technology – UPnP Device Architecture –
Part 4-14: Audio Video Device Control Protocol –
Level 2 – Scheduled Recording Service

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ISO/IEC 29341-4-14
Edition 1.0 2008-11
INTERNATIONAL
STANDARD
Information technology – UPnP Device Architecture –
Part 4-14: Audio Video Device Control Protocol –
Level 2 – Scheduled Recording Service
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XC
ICS 35.200 ISBN 978-2-88910-856-5

– 2 – 29341-4-14 © ISO/IEC:2008(E)
CONTENTS
FOREWORD .10
ORIGINAL UPNP DOCUMENTS (informative) .12
1 Overview and Scope.14
1.1 Introduction.14
1.2 Notation .14
1.2.1 Data Types.15
1.2.2 Strings Embedded in Other Strings.15
1.2.3 Extended Backus-Naur Form.15
1.3 Derived Data Types.16
1.3.1 Comma Separated Value (CSV) Lists .16
1.4 Management of XML Namespaces in Standardized DCPs.17
1.4.1 Namespace Prefix Requirements .19
1.4.2 Namespace Names, Namespace Versioning and Schema Versioning.20
1.4.3 Namespace Usage Examples.21
1.5 Vendor-defined Extensions .22
1.6 References .22
2 Service Modeling Definitions.25
2.1 ServiceType.25
2.2 Terms and Abbreviations.25
2.2.1 Abbreviations .25
2.2.2 Terms.25
2.3 ScheduledRecording Service Architecture .31
2.3.1 recordSchedule.31
2.3.2 recordTask .32
2.4 State Variables .33
2.4.1 State Variable Overview.33
2.4.2 SortCapabilities .35
2.4.3 SortLevelCapability .35
2.4.4 StateUpdateID.35
2.4.5 LastChange.36
2.4.6 A_ARG_TYPE_PropertyList .38
2.4.7 A_ARG_TYPE_DataTypeID .39
2.4.8 A_ARG_TYPE_ObjectID.39
2.4.9 A_ARG_TYPE_ObjectIDList.39
2.4.10 A_ARG_TYPE_PropertyInfo.39
2.4.11 A_ARG_TYPE_Index.39
2.4.12 A_ARG_TYPE_Count .39
2.4.13 A_ARG_TYPE_SortCriteria .39
2.4.14 A_ARG_TYPE_RecordSchedule.39
2.4.15 A_ARG_TYPE_RecordTask .40
2.4.16 A_ARG_TYPE_RecordScheduleParts.40
2.5 Eventing and Moderation.41
2.6 Actions.41
2.6.1 GetSortCapabilities().42
2.6.2 GetPropertyList().43
2.6.3 GetAllowedValues() .44

29341-4-14 © ISO/IEC:2008(E) – 3 –
2.6.4 GetStateUpdateID() .45
2.6.5 BrowseRecordSchedules() .46
2.6.6 BrowseRecordTasks() .50
2.6.7 CreateRecordSchedule() .52
2.6.8 DeleteRecordSchedule().54
2.6.9 GetRecordSchedule() .56
2.6.10 EnableRecordSchedule().57
2.6.11 DisableRecordSchedule() .58
2.6.12 DeleteRecordTask().59
2.6.13 GetRecordTask() .60
2.6.14 EnableRecordTask() .61
2.6.15 DisableRecordTask() .62
2.6.16 ResetRecordTask().63
2.6.17 GetRecordScheduleConflicts().63
2.6.18 GetRecordTaskConflicts().65
2.6.19 Common Error Codes.66
2.7 State Diagram of recordTask.67
2.7.1 A Full-Featured State Diagram .67
2.7.2 A Minimal-Implementation State Diagram .72
2.7.3 recordTask State Example.75
2.8 ScheduledRecording Service Priority Model .76
2.8.1 Introduction of the ScheduledRecording Service Priority Model .76
2.8.2 Ordered Priority within Each Priority Level.77
2.8.3 Setting the Initial Priority Level of a recordSchedule.78
2.8.4 Sorting recordSchedule Instances Based on their Current Priority Settings.80
2.9 Theory of Operation.80
2.9.1 Introduction .80
2.9.2 Checking the Capabilities of a ScheduledRecording Service .80
2.9.3 Adding a Scheduled Recording Entry to the List.90
2.9.4 Deleting a recordSchedule.103
2.9.5 Browsing recordSchedule and recordTask instances.103
2.9.6 Rating System.109
2.9.7 Conflict Detection and Resolution.110
3 XML Service Description.111
4 Test.120
Annex A (normative) srs XML Document .121
A.1 A_ARG_TYPE_RecordSchedule AVDT XML Document .121
A.2 A_ARG_TYPE_RecordTask AVDT XML Document .122
A.3 A_ARG_TYPE_RecordScheduleParts AVDT XML Document.122
Annex B (normative) AV Working Committee Extended Properties.124
B.1 Base Properties .124
B.1.1 @id.124
B.1.2 title.125
B.1.3 class .125
B.1.4 additionalStatusInfo.125
B.1.5 cdsReference.126
B.2 Priority Properties .126
B.2.1 priority .127

– 4 – 29341-4-14 © ISO/IEC:2008(E)
B.2.2 desiredPriority .128
B.2.3 desiredPriority@type.129
B.3 Output Control Properties.130
B.3.1 recordDestination.130
B.3.2 desiredRecordQuality.132
B.4 Content Identification Related Properties .134
B.4.1 scheduledCDSObjectID .134
B.4.2 scheduledChannelID.135
B.4.3 scheduledStartDateTime.136
B.4.4 scheduledDuration .136
B.4.5 scheduledProgramCode .137
B.5 Matching Content Criteria Properties.137
B.5.1 matchingName .138
B.5.2 matchingID .139
B.6 Matching Qualifying Criteria Properties .140
B.6.1 matchingChannelID.140
B.6.2 matchingStartDateTimeRange.140
B.6.3 matchingDurationRange .141
B.6.4 matchingRatingLimit.141
B.6.5 matchingEpisodeType.143
B.7 Content Control Properties .144
B.7.1 totalDesiredRecordTasks.144
B.7.2 scheduledStartDateTimeAdjust.145
B.7.3 scheduledDurationAdjust .145
B.7.4 activePeriod .145
B.7.5 durationLimit.146
B.7.6 channelMigration.147
B.7.7 timeMigration.147
B.7.8 allowDuplicates .147
B.8 Storage Related Properties .148
B.8.1 persistedRecordings .148
B.9 Schedule State Properties.149
B.9.1 scheduleState .149
B.9.2 abnormalTasksExist.151
B.10 Statistics Properties.151
B.10.1 currentRecordTaskCount.151
B.10.2 totalCreatedRecordTasks .151
B.10.3 totalCompletedRecordTasks.152
B.11 Task General Properties.152
B.11.1 recordScheduleID .152
B.11.2 recordedCDSObjectID .152
B.12 Task Content Identification Properties.153
B.12.1 taskCDSObjectID.153
B.12.2 taskChannelID.154
B.12.3 taskStartDateTime .154
B.12.4 taskDuration.154
B.12.5 taskProgramCode .155
B.12.6 recordQuality.155
B.13 Task Matched Content Criteria Properties .157

29341-4-14 © ISO/IEC:2008(E) – 5 –
B.13.1 matchedName.157
B.13.2 matchedID.158
B.14 Task Matched Qualifying Criteria Properties .158
B.14.1 matchedRating .158
B.14.2 matchedRating@type.159
B.14.3 matchedEpisodeType .159
B.15 Task Matched Content Control Properties .159
B.15.1 taskStartDateTimeAdjust .159
B.15.2 taskDurationAdjust.160
B.15.3 taskDurationLimit .160
B.15.4 taskDurationLimit@effect.160
B.15.5 taskChannelMigration .160
B.15.6 taskTimeMigration.161
B.16 Task State Properties.161
B.16.1 taskState .161
B.17 ContentDirectory Service Imported Properties .169
Annex C (normative) AV Working Committee Class Definitions.174
C.1 Class Hierarchy .174
C.1.1 Relationships between Classes and Properties.175
C.1.2 recordScheduleParts Properties .176
C.1.3 recordSchedule Properties.180
C.1.4 recordTask Properties.183
C.2 Class Definitions.187
C.3 object Base Class.187
C.3.1 object.recordSchedule Class .189
C.3.2 object.recordTask Class .198
Annex D (normative) EBNF Syntax Definitions.200
D.1 Priority Syntax.200
D.2 Date&time Syntax.200
D.3 Class Name Syntax .201
Annex E (informative) ScheduledRecording Service Relationship to
ContentDirectory Service.202
Annex F (informative) ScheduledRecording Service Relationship to EPG.203
Annex G (informative) AVDT Examples .204
G.1 A_ARG_TYPE_RecordSchedule AVDT Example.204
G.2 A_ARG_TYPE_RecordTask AVDT Example.220
G.3 A_ARG_TYPE_RecordScheduleParts AVDT Example .238

– 6 – 29341-4-14 © ISO/IEC:2008(E)
LIST OF TABLES
Table 1-1: EBNF Operators .16
Table 1-2: CSV Examples .17
Table 1-3: Namespace Definitions.18
Table 1-4: Schema-related Information .19
Table 1-5: Default Namespaces for the AV Specifications.20
Table 2-1: Abbreviations.25
Table 2-1: Properties in XML .27
Table 2-2: State Variables .33
Table 2-3: allowedValueList for the DataTypeID argument.35
Table 2-4: Allowed Elements in Element.36
Table 2-5: Eventing and Moderation.41
Table 2-6: Actions.41
Table 2-7: Arguments for GetSortCapabilities().42
Table 2-8: Error Codes for GetSortCapabilities().43
Table 2-9: Arguments for GetPropertyList() .43
Table 2-10: Error Codes for GetPropertyList() .44
Table 2-11: Arguments for GetAllowedValues() .44
Table 2-12: Error Codes for GetAllowedValues() .45
Table 2-13: Arguments for GetStateUpdateID() .46
Table 2-14: Error Codes for GetStateUpdateID() .46
Table 2-15: Arguments for BrowseRecordSchedules() .46
Table 2-16: Error Codes for BrowseRecordSchedules() .50
Table 2-17: Arguments for BrowseRecordTasks() .51
Table 2-18: Error Codes for BrowseRecordTasks() .52
Table 2-19: Arguments for CreateRecordSchedule() .53
Table 2-20: Error Codes for CreateRecordSchedule() .54
Table 2-21: Arguments for DeleteRecordSchedule() .55
Table 2-22: Error Codes for DeleteRecordSchedule().55
Table 2-23: Arguments for GetRecordSchedule() .56
Table 2-24: Error Codes for GetRecordSchedule() .56
Table 2-25: Arguments for EnableRecordSchedule().57
Table 2-26: Error Codes for EnableRecordSchedule().57
Table 2-27: Arguments for DisableRecordSchedule().58
Table 2-28: Error Codes for DisableRecordSchedule().58
Table 2-29: Arguments for DeleteRecordTask().59
Table 2-30: Error Codes for DeleteRecordTask().59
Table 2-31: Arguments for GetRecordTask() .60
Table 2-32: Error Codes for GetRecordTask() .60
Table 2-33: Arguments for EnableRecordTask().61

29341-4-14 © ISO/IEC:2008(E) – 7 –
Table 2-34: Error Codes for EnableRecordTask().61
Table 2-35: Arguments for DisableRecordTask().62
Table 2-36: Error Codes for DisableRecordTask() .62
Table 2-37: Arguments for ResetRecordTask().63
Table 2-38: Error Codes for ResetRecordTask().63
Table 2-39: Arguments for GetRecordScheduleConflicts() .64
Table 2-40: Error Codes for GetRecordScheduleConflicts() .64
Table 2-41: Arguments for GetRecordTaskConflicts() .65
Table 2-42: Error Codes for GetRecordTaskConflicts() .65
Table 2-43: Common Error Codes .66
Table 2-44: recordTask State Timeline.76
Table 2-45: Example 1: Fewer recordSchedule instances than the Number of Supported Priority
Levels. .77
Table 2-46: Example 2: More recordSchedule instances than the Number of Supported Priority
Levels. .78
Table 2-47: Existing recordSchedule Priorities.79
Table 2-48: desiredPriority Property Set to “RS-C”.79
Table 2-49: desiredPriority Property Set to “HIGHEST”, “L1_HI”, or “RS-A”.79
Table 2-50: desiredPriority Property Set to “LOWEST”, “L3_LOW”, or “RS-B” .80
Table 2-51: desiredPriority Property Set to “RS-C”.80
Table B-1: Base Properties Overview .124
Table B-2: allowedValueList for the class Property.125
Table B-3: Priority Properties .126
Table B-4: allowedValueList for the priority Property .127
Table B-5: Primary allowedValueList for the desiredPriority Property.128
Table B-6: Additional allowedValueList for the desiredPriority Property .129
Table B-7: allowedValueList for the desiredPriority@type Property.130
Table B-8: Output Control Properties.130
Table B-9: desiredRecordQuality Example.132
Table B-10: allowedValueList for the desiredRecordQuality Property .133
Table B-11: allowedValueList for the desiredRecordQuality@type Property.134
Table B-12: Content Identification Related Properties .134
Table B-13: allowedValueList for the scheduledChannelID@type Property .136
Table B-14: Matching Content Criteria Properties .137
Table B-15: allowedValueList for the matchingName@type Property .138
Table B-16: allowedValueList for the matchingID@type Property .139
Table B-17: Matching Qualifying Criteria Properties .140
Table B-18: allowedValueList for the matchingRatingLimit Property Using the MPAA Rating
= “MPAA.ORG”) .142
System (matchingRatingLimit@type
Table B-19: allowedValueList for the matchingRatingLimit Property Using the RIAA Rating
System (matchingRatingLimit@type = “RIAA.ORG”) .142

– 8 – 29341-4-14 © ISO/IEC:2008(E)
Table B-20: allowedValueList for the matchingRatingLimit Property Using the ESRB Rating
System (matchingRatingLimit@type = “ESRB.ORG”).142
Table B-21: allowedValueList for the matchingRatingLimit Property Using the TVGUIDELINES
Rating System (matchingRatingLimit@type = “TVGUIDELINES.ORG”).142
Table B-22: allowedValueList for the matchingRatingLimit@type Property.143
Table B-23: allowedValueList for the matchingEpisodeType Property .144
Table B-24: Content Control Properties .144
Table B-25: allowedValueList for the durationLimit@effect Property.147
Table B-26: Storage Related Properties .148
Table B-27: Schedule State Properties.149
Table B-28: allowedValueList for the scheduleState Property .150
Table B-29: allowedValueList for the scheduleState@currentErrors Property .150
Table B-30: Statistics Properties.151
Table B-31: Task General Properties.152
Table B-32: Task Content Identification Properties.153
Table B-33: recordQuality Example .156
Table B-34: allowedValueList for the recordQuality Property.157
Table B-35: Task Matched Content Criteria Properties .157
Table B-36: Task Matched Qualifying Criteria Properties.158
Table B-37: Task Matched Content Control Properties .159
Table B-38: State Related Properties.161
Table B-39: allowedValueList for the taskState Property.162
Table B-40: allowedValueList for the taskState Property.163
Table B-41: allowedValueList for the taskState@phase Property.164
Table B-42: allowedValueList for the taskState@xxx Properties.167
Table C-1: Class Properties Overview for recordScheduleParts usage.177
Table C-2: Class Properties Overview for recordSchedule usage.180
Table C-3: Class Properties Overview for recordTask usage .184
Table C-4: object Base Class Properties .188
Table C-5: object.recordSchedule Base Class Properties .189
Table C-6: object.recordSchedule.direct Class Properties.190
Table C-7: object.recordSchedule.direct.manual Class Properties.191
Table C-8: object.recordSchedule.direct.cdsEPG Class Properties .192
Table C-9: object.recordSchedule.direct.cdsNonEPG Class Properties.193
Table C-10: object.recordSchedule.direct.programCode Class Properties.193
Table C-11: object.recordSchedule.query Class Properties .194
Table C-12: object.recordSchedule.query.contentName Class Properties.195
Table C-13: object.recordSchedule.query.contentID Class Properties.197
Table C-14: object.recordTask Base Class Properties .199

29341-4-14 © ISO/IEC:2008(E) – 9 –
LIST OF FIGURES
Figure 1: Creating a new recordSchedule .31
Figure 2: Capability check. .32
Figure 3: Browse recordSchedule. .32
Figure 4: Delete a recordSchedule.32
Figure 5: A Full-Featured State Diagram.68
Figure 6: A Minimal-Implementation State Diagram.73
Figure 7: Class hierarchy for the ScheduledRecording service.174

– 10 – 29341-4-14 © ISO/IEC:2008(E)
INFORMATION TECHNOLOGY –
UPNP DEVICE ARCHITECTURE –
Part 4-14: Audio Video Device Control Protocol – Level 2 –
Scheduled Recording Service
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