1、 ETSI TS 103 544-24 V1.3.0 (2017-10) Publicly Available Specification (PAS); Intelligent Transport Systems (ITS); MirrorLink; Part 24: Media Meta Data Service CAUTION The present document has been submitted to ETSI as a PAS produced by CCC and approved by the ETSI Technical Committee Intelligent Tra
2、nsport Systems (ITS). CCC is owner of the copyright of the document CCC-TS-077 and/or had all relevant rights and had assigned said rights to ETSI on an “as is basis“. Consequently, to the fullest extent permitted by law, ETSI disclaims all warranties whether express, implied, statutory or otherwise
3、 including but not limited to merchantability, non-infringement of any intellectual property rights of third parties. No warranty is given about the accuracy and the completeness of the content of the present document. TECHNICAL SPECIFICATION ETSI ETSI TS 103 544-24 V1.3.0 (2017-10)2 Reference DTS/I
4、TS-88-24 Keywords interface, ITS, PAS, smartphone ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important noti
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9、n shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. ETSI 2017. Car Connectivity Consortium 2011-2017. All rights reserved. ETSI logo is a Trade Mark of ETSI registered for the benefit of its Members. Mirr
10、orLink is a registered trademark of Car Connectivity Consortium LLC. RFB and VNC are registered trademarks of RealVNC Ltd. UPnP is a registered trademark of UPnP Forum. Other names or abbreviations used in the present document may be trademarks of their respective owners. DECTTM, PLUGTESTSTM, UMTSTM
11、and the ETSI logo are trademarks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are trademarks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. oneM2M logo is protected for the benefit of its Members. GSM and the GSM logo are trademarks re
12、gistered and owned by the GSM Association. ETSI ETSI TS 103 544-24 V1.3.0 (2017-10)3 Contents Intellectual Property Rights 4g3Foreword . 4g3Modal verbs terminology 4g31 Scope 5g32 References 5g32.1 Normative references . 5g32.2 Informative references 5g33 Abbreviations . 6g34 Data Service Definition
13、 6g34.1 Media Meta Data Service Version 1.0 6g35 SBP Binding . 8g35.1 Service Registry . 8g35.2 Service Specific Error Codes 9g35.2.1 General 9g35.2.2 Access to ControlMediaItem Object . 9g36 Theory of Operation . 9g36.1 Subscribing to Current and Next Media Items . 9g36.2 Subscribing to Playback Po
14、sition . 11g36.3 Remote Control the Media Source . 12g3Annex A (informative): Authors and Contributors . 14g3History 15g3ETSI ETSI TS 103 544-24 V1.3.0 (2017-10)4 Intellectual Property Rights Essential patents IPRs essential or potentially essential to the present document may have been declared to
15、ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is avai
16、lable from the ETSI Secretariat. Latest updates are available on the ETSI Web server (https:/ipr.etsi.org/). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR
17、000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Trademarks The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners. ETSI claims no ownership of these except for any whic
18、h are indicated as being the property of ETSI, and conveys no right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword Thi
19、s Technical Specification (TS) has been produced by ETSI Technical Committee Intelligent Transport Systems (ITS). The present document is part 24 of a multi-part deliverable. Full details of the entire series can be found in part 1 i.1. Modal verbs terminology In the present document “shall“, “shall
20、 not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct
21、citation. ETSI ETSI TS 103 544-24 V1.3.0 (2017-10)5 1 Scope The present document is part of the MirrorLinkspecification which specifies an interface for enabling remote user interaction of a mobile device via another device. The present document is written having a vehicle head-unit to interact with
22、 the mobile device in mind, but it will similarly apply for other devices, which provide a colour display, audio input/output and user input mechanisms. Current MirrorLink solutions are concentrated on utilization of MirrorLink Clients main display to mirror applications or provide variety services
23、on the MirrorLink Server. However, there are so many MirrorLink Clients which have several other displays, such as cluster display panel, Heads-up Display (HUD) and so on. Instead of applications mirroring, using these displays, the driver and the passenger can be provided with a variety meta inform
24、ation such as turn by turn information, photo or graphic information, meta data information of audio and video clip, text information, etc. Those Meta Information Data Services are based on the SBP (Service Binary Protocol) framework. The present document specifies media meta data service based on S
25、BP (Service Binary Protocol) framework. By receiving this data, the MirrorLink Client (e.g. a car) can provide media information to driver and passenger e.g. through the cars cluster display panel, or heads-up display. 2 References 2.1 Normative references References are either specific (identified
26、by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which are not found to be publ
27、icly available in the expected location might be found at https:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long-term validity. The following referenced documents are necessary for the application o
28、f the present document. 1 ETSI TS 103 544-27 (V1.3.0): “Publicly Available Specification (PAS); Intelligent Transport Systems (ITS); MirrorLink; Part 27: Basic Meta Data Service“. 2.2 Informative references References are either specific (identified by date of publication and/or edition number or ve
29、rsion number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot
30、 guarantee their long-term validity. The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. i.1 ETSI TS 103 544-1 (V1.3.0): “Publicly Available Specification (PAS); Intelligent Transport Syst
31、ems (ITS); MirrorLink; Part 1: Connectivity“. ETSI ETSI TS 103 544-24 V1.3.0 (2017-10)6 3 Abbreviations For the purposes of the present document, the following abbreviations apply: H/U Head Unit HUD Head Up Display 4 Data Service Definition 4.1 Media Meta Data Service Version 1.0 /* The present docu
32、ment defines data objects for the Media Meta * data service to be carried over the SBP. By receiving * this data, the Media Data Sink (e.g. a car) can provide variety * media information to the driver and passenger through instrument * cluster display panel, HUD etc. * The Media Meta Source may be i
33、mplemented from a MirrorLink Client * or a MirrorLink Server (typically driven from a media player * application). * The service is based on the Basic Meta Data Service. * version 1.0 */ SERVICE com.mirrorlink.meta.media : com.mirrorlink.meta.basic version 1.0 /* Enumeration describing the status of
34、 the media player. */ ENUM PlayStatus /* Media playback stopped. No audio playback. The Media player shall * NOT stream audio to the Media Sink. */ STOPPED = 0x00, /* Prepare Media playback. Media player is preparing the media * stream. A media player may skip this state and immediately go * to the
35、PLAYING state. The Media player shall not stream audio to * the Media Sink. */ PREPARING = 0x01, /* Media playback ongoing. In PLAYING state, the Media player shall * stream audio to the Media Sink. */ PLAYING = 0x02, /* Media playback paused. Media player typically switches to PAUSED * state based
36、on user action. In PAUSED state, the Media player * shall not stream audio to the Media Sink. */ PAUSED = 0x03 ; /* Enumeration describing the commands for the media player. */ ENUM Command /* Start media playback. */ START = 0x00, /* Stop media playback. */ STOP = 0x01, /* Pause media playback. */
37、PAUSE = 0x02, /* Start playback of the next media item from the browsable * media list. */ NEXT = 0x03, /* Start playback of the previous media item from the browsable * media list. This command may go back to the start position of * the current media item first. A second call will then go to the *
38、previous track. The behavior is media player specific. */ PREVIOUS = 0x04 /* Fast forward. */ ETSI ETSI TS 103 544-24 V1.3.0 (2017-10)7 FORWARD = 0x05, /* Fast backward. */ REWIND = 0x06 ; /* The MediaItem structure holds all meta data related to a specific * media item (e.g. a song, a play list ite
39、m). */ STRUCTURE MediaItem /* Duration of the media items playtime, if it would be played in * full. The value is representing milliseconds ms. * optional, unit milliseconds, uid 0xb62c9639 */ INT duration; /* Title of the media item. In case the title is not known, it shall * be set to an empty Str
40、ing. * Shall not exceed 60 characters. * mandatory, uid 0x28c9dd73 */ STRING title; /* Artist of the media item. In case the artist is not known, it * Shall be set to an empty String. * Shall not exceed 60 characters. * mandatory, uid 0xa3b8740c */ STRING artist; /* Album title the media item belong
41、s to. * Shall not exceed 60 characters. * optional, uid 0xa0ff2dca */ STRING album; /* Year the media item has been published/recorded. * Shall not exceed 4 characters. * optional, uid 0xe73ed082 */ STRING year; /* Genre of the media item. * Shall not exceed 30 characters. * optional, uid 0xf8bf6bde
42、 */ STRING genre; /* Mimetype of the media item artwork. * Shall be included, if artwork is provided. Artwork should be * either “image/png“ or “image/jpeg“. * conditional, uid 0x107e35f3 */ STRING mimetype; /* Artwork of the media item. * optional, uid 0x47d5bb4f */ BYTES artwork; ; /* The MediaPla
43、yerStatus object informs the data sink of the media * player and its status. * mandatory, readable, uid 0x5336a7b2 */ OBJECT MediaPlayerStatus /* Identifier of the media player application, as used within UPnP * application advertisements and the respective framebuffer * context information. * Shall
44、 be set to 0, if no media player is running and registered * to the media meta data service. * mandatory, uid 0xcc99c513 */ INT playingAppId; /* Status of the media player. * mandatory, uid 0x3a2627d2 */ ENUM mediaPlayerStatus; ; /* The CurrentMedia object inform the data sink about the currently *
45、playing media item. * mandatory, readable, version 1.0, uid 0x954b7043 */ OBJECT CurrentMediaItem /* Currently playing media item. ETSI ETSI TS 103 544-24 V1.3.0 (2017-10)8 * mandatory, uid 0x49d9e823 */ STRUCTURE currentMediaItem; ; /* The NextMediaItem object inform the data sink about the playing
46、 * media item, which will be played next. * optional, readable, version 1.0, uid 0x7fe6e95f */ OBJECT NextMediaItem /* Currently playing media item. * mandatory, uid 0x10ea897f STRUCTURE nextMediaItem; ; /* The PlayMediaItem object allows the data sink to set the media * item to be played from the M
47、edia Player. * optional, writable, version 1.0, uid 0x05f6417f */ OBJECT ControlMediaItem /* Identifier of the command, which should be executed on the given * media item. * The following commands shall be supported: * - START, PAUSE, STOP, * - NEXT, PREVIOUS. * The following commands should be supp
48、orted: * - REWIND, FORWARD. If one command is supported, the other shall * be supported as well. * mandatory, uid 0xfe02da06 */ ENUM command; ; /* The PlaybackTime object informs the data sink of the currentMedia * playback timing. Synchronization with currentMedia item cannot be * guaranteed 100%.
49、Update to PlaybackPosition object may happen * prior or after the update of the currentMedia item. * optional, uid 0x21cac1c9 */ OBJECT PlaybackPosition /* Already played time for the currently playing media item. * Time duration is provided in milliseconds. * mandatory, unit milliseconds, uid 0xec996318 */ INT played; ; ; 5 SBP Binding 5.1 Service Registry The Media Meta Data Services uses the following objects and their access capabilities,
