ISO/IEC 23093-2:2019
(Main)Information technology — Internet of media things — Part 2: Discovery and communication API
Information technology — Internet of media things — Part 2: Discovery and communication API
This document specifies the abstract class of a media thing (MThing), which is a basic component to construct Internet of media things. The MThing class contains the basic APIs to: — discover other MThing(s) in the network; — connect/disconnect MThing(s); — support transactions (e.g. payments) using media tokens between MThings.
Technologies de l'information — Internet des objets media — Partie 2: API pour la découverte et la communication
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INTERNATIONAL STANDARD
Deleted: /FDIS
ISO/IEC 23093-2:2019(E)
Information technology — Internet of media things — Part 2: Discovery and
communication API
Technologies de l'information — Internet des objets media — Partie 2: API pour la
decouverte et la communication
Deleted: ¶
... [1]
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ISO/IEC 23093-2:2019(E)
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Copyright notice
This ISO document is a Draft International Standard and is copyright‐protected by ISO. Except as
permitted under the applicable laws of the user's country, neither this ISO draft nor any extract
from it may be reproduced, stored in a retrieval system or transmitted in any form or by any
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ISO/IEC 23093-2:2019(E)
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Contents Page
Foreword . 4
Introduction . 5
1 Scope . 2
2 Normative references . 2
3 Terms and definitions . 2
4 APIs . 2
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ISO/IEC 23093-2:2019(E)
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Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are
members of ISO or IEC participate in the development of International Standards through technical
committees established by the respective organization to deal with particular fields of technical activity.
ISO and IEC technical committees collaborate in fields of mutual interest. Other international
organizations, governmental and non‐governmental, in liaison with ISO and IEC, also take part in the
work.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of document should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
Details of any patent rights identified during the development of the document will be in the
Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents) or the
IEC list of patent declarations received (see http://patents.iec.ch).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT)
see www.iso.org/iso/foreword.html.
This document was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information.
A list of all parts in the ISO/IEC 23093 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv © ISO/IEC 2019 – All rights reserved
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ISO/IEC 23093-2:2019(E)
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Introduction
The ISO/IEC 23093 series provides an architecture and specifies APIs and compressed representation
of data flowing between media things.
The APIs for the media things facilitate discovering other media things in the network, connecting and
efficiently exchanging data between media things. The APIs also provide means for supporting
transaction tokens in order to access valuable functionalities, resources, and data from media things.
Media things related information consists of characteristics and discovery data, setup information from
a system designer, raw and processed sensed data, and actuation information. The ISO/IEC 23093
series specifies data formats of input and output for media sensors, media actuators, media storages,
media analyzers, etc. Sensed data from media sensors can be processed by media analyzers to produce
analysed data, and the media analyzers can be cascaded in order to extract semantic information.
This document contains the APIs to discover media things in the network, and communicate between
media things along with the APIs to facilitate transactions between media things.
The International Organization for Standardization (ISO) and the International Electrotechnical
Commission (IEC) draw attention to the fact that it is claimed that compliance with this document may
involve the use of patents.
ISO and the IEC take no position concerning the evidence, validity and scope of these patent rights.
The holders of these patent rights have assured the ISO and IEC that they are willing to negotiate
licences under reasonable and non‐discriminatory terms and conditions with applicants throughout the
world. In this respect, the statements of the holders of these patents right are registered with ISO and
IEC. Information may be obtained from:
Company Address
Myongji University Industry and Academia 116 Myongji‐ro, Cheoin‐gu, Yongin, Gyeonggi‐do 17058,
Cooperation Foundation Republic of Korea
Insignal Co., Ltd #1104, Byucksan Digital Valley 7st, 50 Digital‐ro 33gil,
Guro‐gu, Seoul, 08377, Republic of Korea
University‐Industry Cooperation of Korea 76 Hanggongdaehak‐ro, Deogyang‐gu, Goyang‐si,
Aerospace University Gyeonggi‐do, 10540, Republic of Korea
Korea Electronics Technology Institute 9FL, Electronics Building, Worldcup bukro 54‐gil Sangam,
Mapo, Seoul, Republic of Korea
Electronics and Telecommunications 218 Gajeong‐ro, Yuseong‐gu, Daejeon, Korea
Research Institute
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights other than those identified in this list. ISO and IEC shall not be held responsible for
identifying any or all such patent rights.
© ISO/IEC 2019 – All rights reserved v
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ISO/IEC 23093-2:2019(E)
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Information technology — Internet of media things — Part 2:
Discovery and communication API
1 Scope
This document specifies the abstract class of a media thing (MThing), which is a basic component to
construct Internet of media things. The MThing class contains the basic APIs to:
— discover other MThing(s) in the network;
— connect/disconnect MThing(s);
— support transactions (e.g. payments) using media tokens between MThings.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
1
ISO/IEC 23093‐1, Information technology — Internet of media things — Part 1: Architecture
2
ISO/IEC 23093‐3:―, Information technology — Internet of media things — Part 3: Media data formats
and API
ISO/IEC 21000‐7:2007, Information technology — Multimedia framework (MPEG-21) — Part 7: Digital
Item Adaptation
Deleted: ,
3 Terms and definitions
Deleted: , and abbreviated terms
For the purposes of this document, the terms and definitions given in ISO/IEC 23093‐1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
4 APIs
4.1 General
This clause specifies APIs to discover MThings, and connect/disconnect communication between
MThings. In addition, APIs and return class types are specified to provide MThing information and
hardware descriptions.
1
Under preparation. Stage at time of publication: ISO/IEC DIS 23093‐1:2019.
2
Under preparation. Stage at time of publication: ISO/IEC FDIS 23093‐3:2019.
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ISO/IEC 23093-2:2019(E)
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An MThing can be discovered by its capabilities and/or supported media token types. The discovered
MThing(s) can then relay its (their) information to the requester (i.e. another MThing).
Figure 1 shows a process to discover MThings in the network by a required capability. Each MThing,
which supports the required capability, can send back its information. In the figure, an MThing
broadcasts a message using discoverMThingByCapability()to look for MSensors that are
capable of capturing an audio (Figure 1, item 1). Each MSensor (e.g. MMicrophone1, MMicrophone2,
MCamera1) sends back its information using sendBackMThingInfo(), which returns the data
3
format MThingInfo specified in ISO/IEC 23093‐3 (Figure 1, item 2).
Figure 2 shows a process of connecting MThings with a capability. An MThing (i.e. ReqMThing) can ask
the availability of the specific capability (e.g. SENSOR_CAPTURE_AUDIO) with the function
isCapabilityAvailable() to another MThing (Figure 2, item 1). If the capability
“SENSOR_CAPTURE_AUDIO” is currently unavailable, the MThing (i.e. MMicrophone1) notifies
“unavailable” (Figure 2, item 2). The ReqMThing can ask the availability of the specific capability again
to other MThings (Figure 2, item 3) with binary representation of “MSensor” and
“SENSOR_CAPTURE_AUDIO”. Because the MCamera1 notifies the ReqMThing that its
“SENSOR_CAPTURE_AUDIO” capability is available (Figure 2, item 4), the ReqMThing can connect to the
camera and reserve its “SENSOR_CAPTURE_AUDIO” capability (Figure 2, item 5). As long as the
capability “SENSOR_CAPTURE_AUDIO” of the MCamera1 is used by the ReqMThing, other MThings
cannot access the corresponding capability.
Figure 1 — Discovering MThings by capability
3
Under preparation. Stage at time of publication: ISO/IEC FDIS 23093‐3:2019.
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ISO/IEC 23093-2:2019(E)
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Figure 2 — Connecting MThings based on a capability
Figure 3 shows a process of disconnecting (i.e. releasing capabilities of) an MThing. The ReqMThing can
release either all of its reserved capabilities of the MCamera (Figure 3, items 1 and 2) or a designated
capability (e.g. SENSOR_CAPTURE_AUDIO) (Figure 3, items 3 and 4) using disconnectMThing().
Figure 3 — Disconnecting an MThing
Figure 4 shows a process where an MThing alerts other MThings that all or some of its capabilities are
going to be unavailable. The MCamera can alert the MThing_01 that either all of capabilities reserved by
MThing_01 are unavailable (Figure 4, items 1 and 2) or a designated capability (e.g.
SENSOR_CAPTURE_AUDIO) is no longer available to MThing_01 (Figure 4, items 3 and 4) using
alertDisconnection().
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Figure 4 — Alerting disconnection to an MThing
Deleted: A transaction
Figure 5 — Transaction process between a user and an MThing
Figure 5 shows a sequence diagram of a transaction process between a user and an MThing. Suppose
that a user wants to watch a video captured from a nearby camera (i.e. MCamera). The user asks a cost
per minute to watch a video taken by the MCamera using getVideoURL_CostPerMinute()through
their user interface of Apps, DApps, or Web (Figure 5, item 1) with desired media token defined by
tokenType (e.g. cryptocurrency or legal tender) and tokenName (e.g. Bitcoin or US dollar). The
MCamera returns the cost per minute to let the user use the getVideoURL() function (Figure 5,
item 2). If the user wants to watch the video with the responded price, they ask a wallet address
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ISO/IEC 23093-2:2019(E)
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(Figure 5, item 3) of the desired MToken. Again, the MCamera responds with the proper wallet address
(Figure 5, item 4). The user sends some amount of MTokens to the wallet address through a payment
system like a block chain or a banking system (Figure 5, item 5) which returns a transaction ID
(Figure 5, item 6). With this transaction ID (i.e. tid), the user can confirm (Figure 5, item 8) whether
the token transaction was succesfully completed to the designated wallet address or not (Figure 5,
item 7) using checkTransactionCompletion(tid). Once the transaction is confirmed, the user
can ask for the video stream service to the MCamera using getVideoURL(tid) (Figure 5, item 9).
The MCamera checks for the completion of the token transaction using
checkTransactionCompletion(tid) (Figure 5, item 10) and the amount of MTokens received
(Figure 5, item 11). The MCamera returns a video URL and streams the video as much as the user paid
(Figure 5, item 12). The details of APIs, getVideoURL_CostPerMinute() and getVideoURL()
are given in ISO/IEC 23093‐3.
Figure 6 shows a sequence diagram of a transaction process between MThings. Suppose that a camera
(i.e. MCamera) wants to stream a captured video to a nearby display (i.e. MDisplay) and play it. The
MCamera asks a cost per minute to play a video on the MDisplay using
setVideoURL_CostPerMinute()(Figure 6, item 1) with desired media token defined by
tokenType (e.g. cryptocurr
...
INTERNATIONAL ISO/IEC
STANDARD 23093-2
First edition
2019-09
Information technology — Internet of
media things —
Part 2:
Discovery and communication API
Technologies de l'information — Internet des objets media —
Partie 2: API pour la découverte et la communication
Reference number
ISO/IEC 23093-2:2019(E)
©
ISO/IEC 2019
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ISO/IEC 23093-2:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO/IEC 2019 – All rights reserved
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ISO/IEC 23093-2:2019(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 APIs . 1
4.1 General . 1
4.2 Abstract Class of MThing . 6
4.2.1 General. 6
4.2.2 MThing APIs . 7
4.3 Return type class . 9
4.3.1 MThingInfoType . 9
4.3.2 MPEG21TerminalCapabilityType .11
© ISO/IEC 2019 – All rights reserved iii
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ISO/IEC 23093-2:2019(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that
are members of ISO or IEC participate in the development of International Standards through
technical committees established by the respective organization to deal with particular fields of
technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other
international organizations, governmental and non-governmental, in liaison with ISO and IEC, also
take part in the work.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for
the different types of document should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject
of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent
rights. Details of any patent rights identified during the development of the document will be in the
Introduction and/or on the ISO list of patent declarations received (see www .iso .org/patents) or the
IEC list of patent declarations received (see http: //patents .iec .ch).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information.
A list of all parts in the ISO/IEC 23093 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO/IEC 2019 – All rights reserved
---------------------- Page: 4 ----------------------
ISO/IEC 23093-2:2019(E)
Introduction
The ISO/IEC 23093 series provides an architecture and specifies APIs and compressed representation
of data flowing between media things.
The APIs for the media things facilitate discovering other media things in the network, connecting
and efficiently exchanging data between media things. The APIs also provide means for supporting
transaction tokens in order to access valuable functionalities, resources, and data from media things.
Media things related information consists of characteristics and discovery data, setup information
from a system designer, raw and processed sensed data, and actuation information. The ISO/IEC 23093
series specifies data formats of input and output for media sensors, media actuators, media storages,
media analyzers, etc. Sensed data from media sensors can be processed by media analyzers to produce
analysed data, and the media analyzers can be cascaded in order to extract semantic information.
This document contains the APIs to discover media things in the network, and communicate between
media things along with the APIs to facilitate transactions between media things.
The International Organization for Standardization (ISO) and the International Electrotechnical
Commission (IEC) draw attention to the fact that it is claimed that compliance with this document may
involve the use of patents.
ISO and the IEC take no position concerning the evidence, validity and scope of these patent rights.
The holders of these patent rights have assured the ISO and IEC that they are willing to negotiate
licences under reasonable and non-discriminatory terms and conditions with applicants throughout
the world. In this respect, the statements of the holders of these patents right are registered with
ISO and IEC. Information may be obtained from:
Company Address
Myongji University Industry and Academia 116 Myongji-ro, Cheoin-gu, Yongin, Gyeonggi-do 17058,
Cooperation Foundation Republic of Korea
Insignal Co., Ltd #1104, Byucksan Digital Valley 7st, 50 Digital-ro 33gil,
Guro-gu, Seoul, 08377, Republic of Korea
University-Industry Cooperation of Korea 76 Hanggongdaehak-ro, Deogyang-gu, Goyang-si,
Aerospace University Gyeonggi-do, 10540, Republic of Korea
Korea Electronics Technology Institute 9FL, Electronics Building, Worldcup bukro 54-gil Sangam,
Mapo, Seoul, Republic of Korea
Electronics and Telecommunications 218 Gajeong-ro, Yuseong-gu, Daejeon, Korea
Research Institute
Attention is drawn to the possibility that some of the elements of this document may be the subject
of patent rights other than those identified in this list. ISO and IEC shall not be held responsible for
identifying any or all such patent rights.
© ISO/IEC 2019 – All rights reserved v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO/IEC 23093-2:2019(E)
Information technology — Internet of media things —
Part 2:
Discovery and communication API
1 Scope
This document specifies the abstract class of a media thing (MThing), which is a basic component to
construct Internet of media things. The MThing class contains the basic APIs to:
— discover other MThing(s) in the network;
— connect/disconnect MThing(s);
— support transactions (e.g. payments) using media tokens between MThings.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
1)
ISO/IEC 23093-1 , Information technology — Internet of media things — Part 1: Architecture
2)
ISO/IEC 23093-3:― , Information technology — Internet of media things — Part 3: Media data
formats and API
ISO/IEC 21000-7:2007, Information technology — Multimedia framework (MPEG-21) — Part 7: Digital
Item Adaptation
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/IEC 23093-1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
4 APIs
4.1 General
This clause specifies APIs to discover MThings, and connect/disconnect communication between
MThings. In addition, APIs and return class types are specified to provide MThing information and
hardware descriptions.
An MThing can be discovered by its capabilities and/or supported media token types. The discovered
MThing(s) can then relay its (their) information to the requester (i.e. another MThing).
1) Under preparation. Stage at time of publication: ISO/IEC DIS 23093-1:2019.
2) Under preparation. Stage at time of publication: ISO/IEC FDIS 23093-3:2019.
© ISO/IEC 2019 – All rights reserved 1
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ISO/IEC 23093-2:2019(E)
Figure 1 shows the process to discover MThings in the network by a required capability. Each MThing,
which supports the required capability, can send back its information. In the figure, an MThing
broadcasts a message using discoverMThingByCapability()to look for MSensors that are capable of
capturing an audio (Figure 1, item 1). Each MSensor (e.g. MMicrophone1, MMicrophone2, MCamera1)
sends back its information using sendBackMThingInfo(), which returns the data format MThingInfo
3)
specified in ISO/IEC 23093-3 (Figure 1, item 2).
Figure 2 shows the process of connecting MThings with a capability. An MThing (i.e. ReqMThing)
can ask the availability of the specific capability (e.g. SENSOR_CAPTURE_AUDIO) with the function
isCapabilityAvailable() to another MThing (Figure 2, item 1). If the capability “SENSOR_CAPTURE_
AUDIO” is currently unavailable, the MThing (i.e. MMicrophone1) notifies “unavailable” (Figure 2,
item 2). The ReqMThing can ask the availability of the specific capability again to other MThings
(Figure 2, item 3) with the binary representation of “MSensor” and “SENSOR_CAPTURE_AUDIO”.
Because the MCamera1 notifies the ReqMThing that its “SENSOR_CAPTURE_AUDIO” capability
is available (Figure 2, item 4), the ReqMThing can connect to the camera and reserve its “SENSOR_
CAPTURE_AUDIO” capability (Figure 2, item 5). As long as the capability “SENSOR_CAPTURE_AUDIO”
of the MCamera1 is used by the ReqMThing, other MThings cannot access the corresponding capability.
Figure 1 — Discovering MThings by capability
3) Under preparation. Stage at time of publication: ISO/IEC FDIS 23093-3:2019.
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ISO/IEC 23093-2:2019(E)
Figure 2 — Connecting MThings based on a capability
Figure 3 shows the process of disconnecting (i.e. releasing capabilities of) an MThing. The ReqMThing
can release either all of its reserved capabilities of the MCamera (Figure 3, items 1 and 2) or a designated
capability (e.g. SENSOR_CAPTURE_AUDIO) (Figure 3, items 3 and 4) using disconnectMThing().
Figure 3 — Disconnecting an MThing
Figure 4 shows the process where an MThing alerts other MThings that all or some of its capabilities
are going to be unavailable. The MCamera can alert the MThing_01 that either all of the capabilities
reserved by MThing_01 are unavailable (Figure 4, items 1 and 2) or a designated capability (e.g.
SENSOR_CAPTURE_AUDIO) is no longer available to MThing_01 (Figure 4, items 3 and 4) using
alertDisconnection().
© ISO/IEC 2019 – All rights reserved 3
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ISO/IEC 23093-2:2019(E)
Figure 4 — Alerting disconnection to an MThing
Figure 5 — Transaction process between a user and an MThing
Figure 5 shows a sequence diagram of a transaction process between a user and an MThing. Suppose
that a user wants to watch a video captured from a nearby camera (i.e. MCamera). The user asks a
cost per minute to watch a video taken by the MCamera using getVideoURL_CostPerMinute()through
their user interface of Apps, DApps, or Web (Figure 5, item 1) with desired media token defined by
tokenType (e.g. cryptocurrency or legal tender) and tokenName (e.g. Bitcoin or US dollar). The MCamera
returns the cost per minute to let the user use the getVideoURL() function (Figure 5, item 2). If the user
wants to watch the video with the responded price, they ask a wallet address (Figure 5, item 3) of the
desired MToken. Again, the MCamera responds with the proper wallet address (Figure 5, item 4). The
4 © ISO/IEC 2019 – All rights reserved
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ISO/IEC 23093-2:2019(E)
user sends some amount of MTokens to the wallet address through a payment system like a blockchain
...
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