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<rfc version="3" ipr="trust200902" docName="draft-ietf-mediaman-haptics-05" number="9695" submissionType="IETF" category="std" xml:lang="en" xmlns:xi="http://www.w3.org/2001/XInclude" consensus="true"> consensus="true" tocInclude="true" obsoletes="" updates="" symRefs="true" sortRefs="true">

  <front>
    <title abbrev="The 'haptics' Top-level Media Type">The 'haptics' Top-level Media Type</title><seriesInfo value="XXXX" stream="IETF" status="standards" name="RFC"></seriesInfo> Type</title>
    <seriesInfo name="RFC" value="9695"/>
    <author initials="Y. K." surname="Muthusamy" fullname="Yeshwant K. Muthusamy"><address><postal><street>600 Muthusamy">
      <address>
	<postal>
	  <street>600 Longwood Drive</street>
	  <city>Allen</city>
<code>TX 75013</code>
<country>USA</country>
</postal><phone>+1
	  <region>Texas</region>
	  <code>75013</code>
	  <country>United States of America</country>
	</postal>
	<phone>+1 469-854-9836</phone>
	<email>yeshwant@yeshvik.com</email>
</address></author>
    </address>
    </author>
    <author initials="C." surname="Ullrich" fullname="Chris Ullrich"><address><postal><street>311 Ullrich">
      <address>
	<postal>
	  <street>311 Court Ave</street>
	  <city>Ventura</city>
<code>CA 93003</code>
<country>USA</country>
</postal><phone>+1
	  <region>California</region>
	  <code>93003</code>
	  <country>United States of America</country>
	  </postal>
	  <phone>+1 805-320-0774</phone>
	  <email>chrisullrich@gmail.com</email>
</address></author>
<date/>
<area>Internet</area>
<workgroup>MEDIAMAN</workgroup>
    </address>
    </author>
    <date year="2024" month="December"/>
    <area>ART</area>
    <workgroup>mediaman</workgroup>

<!-- [rfced] Please insert any keywords (beyond those that appear in
the title) for use on https://www.rfc-editor.org/search. -->

<keyword>example</keyword>

<abstract>
<t>This memo serves to register registers and document documents the 'haptics' top-level
media type, under which subtypes for representation formats for haptics
may be registered. This document also serves as a registration for a set of subtypes, which are representative of
some existing subtypes already in use.</t>
</abstract>

</front>

<middle>

<section anchor="introduction"><name>Introduction</name>
<t>The term 'haptics' refers to the generation of touch-related sensations
in a device or interface. Haptics is widely used in consumer devices in
order to provide touch-based feedback to users. The most common use of
haptics is in mobile devices, where it is used to provide feedback to
users interacting with the touchscreen, e.g., typing on a virtual
keyboard. Haptic technologies are unlike audio and visual enabling
technologies in the sense that they require some form of actuation in
order to create a tactile sensation. For mobile phones and game
controllers, these actuators are typically small vibrating motors.
For large touchscreens in vehicles, these actuators can be specialized
piezoelectric materials. Haptic capabilities are found in nearly every
modern smartphone and game smartphone, game, and virtual reality controller, making these
devices an ideal target for enhanced media experiences.</t>

<t>
Internet Media Types <xref target="RFC6838"></xref> are used to label content carried over
Internet protocols.  This document defines a new top-level type 'haptics' type, 'haptics',
according to <xref target="TOPLEVEL"></xref>. target="RFC9694"></xref>.  This top-level type indicates
that the content specifies haptic data.  Under this top-level type,
different representation formats of haptics may be registered.</t>

<!-- [rfced] We do believe the capitalized keywords are used in the RFC. Please review and let us know if any of the capitalized keywords should be used.  Otherwise, we will remove the Terminology section and related references.

Original:
1.1.  Terminology

   The keywords MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT,
   SHOULD,SHOULD NOT, RECOMMENDED, NOT RECOMMENDED, MAY, and OPTIONAL in
   this document are to be interpreted as described in BCP 14 [RFC2119]
   [RFC8174] when, and only when, they appear in all capitals, as shown
   here.

-->

<section anchor="terminology"><name>Terminology</name>

<t>The keywords <bcp14>MUST</bcp14>, <bcp14>MUST NOT</bcp14>, <bcp14>REQUIRED</bcp14>, <bcp14>SHALL</bcp14>, <bcp14>SHALL NOT</bcp14>,
<bcp14>SHOULD</bcp14>,<bcp14>SHOULD NOT</bcp14>, <bcp14>RECOMMENDED</bcp14>, <bcp14>NOT RECOMMENDED</bcp14>, <bcp14>MAY</bcp14>, and <bcp14>OPTIONAL</bcp14> in this document are to be interpreted as described in BCP 14 <xref target="RFC2119"></xref> <xref target="RFC8174"></xref> when, and only when, they appear in all capitals, as shown here.</t>
</section>
</section>

<section anchor="background-and-justification"><name>Background and Justification</name>
<t>Haptic signals provide an additional layer of entertainment and sensory
immersion for the user, when combined with audio and video signals. Haptic tracks, in separate files, can be combined
with audio/video files and played back in sync to provide an overall
immersive media experience (audio, visual, tactile) for the user. More
recently, haptic tracks embedded in standard file formats formats, such as ISOBMFF
(ISO Base Media File Format), enable playback of the haptic signals
over one or more actuators, simultaneously with audio and video playback <xref target="ISOBMFF-IS"></xref>. Haptic signals are also part of
media streams that use RTP, such as those for streaming games, XR, and wearables.</t>

<section anchor="mpeg-isobmff"><name>MPEG ISOBMFF</name>
<t>Historically, there has not been a registration of formats for haptics.
However, haptics was proposed as a first-order media type (at the
same level as audio and video) in ISOBMFF in April 2020. The proposal has since progressed to International Standard, and was published in
January 2022 <xref target="ISOBMFF-IS"></xref>. Haptics is
officially part of the ISO/IEC 14496-12 (ISOBMFF) standard, 7th Edition. Given this development,
a strong case can be made for haptics to be added to the list of top-level
media types recognized by the IETF.</t>

<t>
We envision the following designations for haptics in mp4 files, once
the top-level type 'haptics' is registered:</t>
<ol>
<ul>
<li>'haptics/mp4' - mp4 files with just haptic tracks and no audio or video in them (e.g.,
streaming games, haptics files for haptic vests, belts, gloves, etc.)</li>
<li>'video/mp4' - mp4 files with video, audio, and haptics (to ensure
consistency with existing mp4 files with video content)</li>
<li>'audio/mp4' - mp4 files with audio and haptics (to ensure
consistency with existing mp4 files with audio content without any video)</li>
</ol>
</ul>
</section>

<section anchor="haptic-sub-modalities"><name>Haptic Sub-modalities Sub-Modalities
</name>
<t>There are multiple sub-modalities of haptics:</t>
<ul>
<li>Vibrotactile (touch, vibration)</li>
<li>Kinesthetic (force feedback)</li>
<li>Surface (surface friction)</li>
<li>Spatial, non-contact (ultrasound)</li>
<li>Thermal (temperature)</li>
</ul>
<t>Therefore, designating 'haptics' as a top-level media type enables the definition of data formats pertaining to these sub-modalities
 in a more streamlined manner. This would not be possible if 'haptics'
were to be placed under other top-level types like 'audio', 'video',
or 'application'.</t>
</section>

<section anchor="another-human-sense"><name>Another Human Sense
</name>
<t>
The top-level media type 'audio' pertains to the human sense of hearing, hearing;
the top-level media type 'video' pertains to the human sense of seeing, seeing;
so it only makes sense for the (equally important) human sense of touch
to be represented by another top-level media type 'haptics'. Placing
'haptics' under 'audio' or 'video' is not reflective of the kinds
of files or use cases that would need haptics but have nothing
whatsoever to do with audio or video.</t>
</section>

<section anchor="commercial-uptake"><name>Commercial Uptake</name>
<!-- [rfced] Would you like to include references for the sales data listed?

Original:
   *  iPhone (206+ million units sold in 2020): native support for
      haptic encoded data

   *  Android (1.38+ billion units sold in 2020): API support of haptic
      buffers

   *  W3C (HTML vibration API [W3C-Vibration]): Optionally supported in
      mobile web browsers.  W3C has also defined vibration extensions
      for gamepads [W3C-Gamepad]

   *  Game consoles (39+ million units sold in 2019): MS Xbox, Sony
      PlayStation, Nintendo Switch, etc.

   *  XR devices (9+ million units sold in 2019): OpenXR haptic API
-->

<t>Haptics is rapidly becoming a standard feature of consumer electronic
devices. For example:</t>
<ul>
<li>iPhone (206+ million units sold in 2020): native support for haptic
encoded haptic-encoded data</li>
<li>Android (1.38+ billion units sold in 2020): API support of haptic
buffers</li>
<li>W3C (HTML vibration API <xref target="W3C-Vibration"></xref>): Optionally supported in mobile web
browsers. W3C has also defined vibration extensions for gamepads <xref target="W3C-Gamepad"></xref></li>
<li>Game consoles (39+ million units sold in 2019): MS Xbox, Sony
PlayStation, Nintendo Switch, etc.</li>
<li>XR devices (9+ million units sold in 2019): OpenXR haptic API</li>
</ul>
<!-- [rfced] May we expand CE as Customer Edge?

Original:
   Since they represent the majority of CE devices, a strong
   case can be made for 'haptics' as a top-level media type.
-->

<t>Haptic media is expected to be commonly exchanged between these devices.
Since they represent the majority of CE devices, a strong case can be made
for 'haptics' as a top-level media type.</t>
</section>

<section anchor="haptic-sub-type-in-use"><name>Haptic Data Formats in Use
</name>
<!-- [rfced] The text indicates the the subtypes have not been registered by IANA, but ivs is being registered by this document.  Please consider whether updates are needed.  Is it correct that ivs is the only type mentioned in Section 2.5 being registered at this time?
Note: likely different, but we see ogg has been registered as an application subtype (see https://www.iana.org/assignments/media-types/application/ogg).

Original:
   While these subtypes have *not* been registered with IANA or
   standardized (yet), the prevalence of these haptic data formats in a
   large number of devices around the world, pre-dating the
   standardization of haptic tracks in ISOBMFF, provides a compelling
   argument for 'haptics' to be designated as a top-level media type:

Perhaps remove mention of "not been registered with IANA?
   While these subtypes have *not* been standardized (yet),
   the prevalence of these haptic data formats in a
   large number of devices around the world, pre-dating the
   standardization of haptic tracks in ISOBMFF, provides a compelling
   argument for 'haptics' to be designated as a top-level media type:
-->
<t>
There are multiple instances of existing haptic data formats
that will live as sub-types under the proposed 'haptics' top-level media type.
While these subtypes have *not* been registered with IANA or standardized
(yet), the prevalence of these haptic data formats in a large number of
devices around the world, pre-dating the standardization of haptic tracks
in ISOBMFF, provides a compelling argument for 'haptics' to be
designated as a top-level media type:</t>
<ul>
<li>'ahap': The AHAP haptic data format <xref target="AHAP"></xref> is currently the standard
encoding on all iOS devices + iOS connected game peripherals. The format has
seen usage and adoption beyond Apple devices as well, with decoders available
for Android and other XR systems.</li>
<li>'ogg': Google has introduced a proprietary extension to the OGG format
in the latest version of Android 11. This encoding enables haptic media to be
stored in OGG files.</li>
<li><t>'ivs': The IVS haptic data format [MPEG-Haptics-Encoder] <xref target="MPEG-Haptics-Encoder"/> is in use:</t>
<ul>
<li>In mobile phones from LG Electronics (specifically, the models V30,
V40, and the newest V50) that are sold worldwide</li>
<li>In gaming phones from ASUS (specifically, models ROG, ROG Phone II,
ROG Phone 3) that are sold worldwide</li>
</ul>
</li>
<li><t>'hapt': The HAPT haptic data format is currently a vendor-specific format that is in use:</t>
<ul>
<li>In mobile haptic advertising (for W3C devices)</li>
<li><t>The following Japanese game developers use the HAPT format as part
of Immersion's TouchSense SDK:</t>
<ul>
<li>KLAB: <eref target="https://www.klab.com/en/">https://www.klab.com/en/</eref></li> target="https://www.klab.com/en/" /></li>
<li>Craft&amp;Meister: <eref target="http://www.crafts-meister.co.jp/pc/company_en.html">http://www.crafts-meister.co.jp/pc/company_en.html</eref></li> target="http://www.crafts-meister.co.jp/pc/company_en.html" /></li>
</ul>
</li>
<li>Tencent is using the TouchSense SDK for their popular social media
application QQ and live streaming application NOW:
<eref target="https://www.businesswire.com/news/home/20171026006443/en/Immersion-Announces-Tencent-Licenses-TouchSense%C2%AE-Technology-Deliver">Immersion-Announces-Tencent-Licenses-TouchSense-Technology-Deliver</eref></li> Immersion-Announces-Tencent-Licenses-TouchSense-Technology-Deliver
(<eref target="https://www.businesswire.com/news/home/20171026006443/en/Immersion-Announces-Tencent-Licenses-TouchSense%C2%AE-Technology-Deliver" />)</li>
</ul>
</li>
</ul>
<t>Given the widespread use of these subtypes, it makes sense for 'haptics'
to be a top-level media type.</t>
</section>

<section anchor="haptic-sub-types-envisioned-standards"><name>Haptic Subtypes (envisioned standards)</name>
<t> (Envisioned Standards)</name>

<!-- [rfced] hmpg and hjif are being registered by this document.  Please consider how this text can be updated for accuracy.

Original:
   These
   codes are not registered yet, but the plan is indeed to standardize
   these haptic coding formats in the near future.  Once standardized,
   these types should also be registered as subtypes of the 'haptics'
   top-level media type:
-->

<!-- [rfced] For ease of the reader, we have updated "FourCC codes" as "FourCCs (four-character codes)".  Alternatively, may we replace "FourCC" with "four-character codes", because this is the only place FourCC is used?  Please review.

Original:
   The MPEG ISOBMFF proposal included an informative annex of known
   haptic coding formats with proposed FourCC codes for them.

Current:
   The MPEG ISOBMFF proposal included an informative annex of known
   haptic coding formats with proposed FourCCs (four-character codes)
   for them.
-->

<t>
The MPEG ISOBMFF proposal included an informative annex of known haptic
coding formats with proposed FourCCs (four-character codes) for them. These codes are not
registered yet, but the plan is indeed to standardize these haptic
coding formats in the near future. Once standardized, these types should also be registered as subtypes of the 'haptics' top-level media type:</t>
<ul>
<li>'hmpg': the MPEG-I haptics streamable binary coding format described in ISO/IEC DIS 23090-31: Haptics coding <xref target="MPEG-Haptics-Coding"></xref> </li>
<li>'hjif': the MPEG-I haptics JSON-based interchange format described in ISO/IEC DIS 23090-31: Haptics coding <xref target="MPEG-Haptics-Coding"></xref> </li>
<!-- [rfced] Should "URLL" be "URLLC"?  If correct, may we expand URLLC as "Ultra-Reliable Low-Latency Communication (URLLC)"?  If not, please indicate how URLL should be expanded.

Original:
   *  IEEE P1918.1.1 vibrotactile coding standard [IEEE-P191811] being
      developed under the IEEE Tactile Internet initiative as part of
      the 5G URLL profile.
-->

<li>IEEE P1918.1.1 vibrotactile coding standard <xref target="IEEE-P191811"></xref> target="IEEE-191811"></xref> being developed under the IEEE Tactile
Internet initiative as part of the 5G URLL profile. Format name is yet to be finalized. </li>
<li>Enumerated effects haptic coding format (based on MIDI). Format name is yet to be finalized.</li>
<li>Audio-to-vibe haptic coding format (automatic audio
to vibration audio-to-vibration conversion algorithms). Format name is yet to be finalized.</li>
</ul>
</section>

<section anchor="application-top-level-type-not-suitable"><name>'application' top-level type not suitable</name> Top-Level Type Not Suitable</name>
<t>From the above arguments, it is clear that haptics does not really
belong under any other media type. To reiterate, there are three main reasons
why the 'haptics' media type does not fit under the 'application' top-level
type:</t>
<ul>
<li>haptics connects to a sensory system, touch/motion, directly, and is
more specific than the abstract 'application' type, and</li>
<li>'application' has historically been used for applications, i.e., code,
which means it is viewed and treated with great care for security.
'haptics' is not code, just as 'audio' and 'video' are not code
either.</li>
<li>haptics is a property of a media stream, it is not an application under
any normal definition. As such, it should be its own type.</li>
</ul>
</section>
</section>

<section anchor="security-considerations"><name>Security Considerations</name>
<t>
Haptics are interpreted data structures that represent collections of
different media rendering instructions intended to be decoded and rendered
on target device hardware. Haptic data can be represented as collections
of signal data and/or descriptive text in XML/JSON or a similar format. Signal data
is typically not executed by endpoint processors and represents minimal
security risk. Descriptive text is typically parsed and represented
in memory using standard XML data structures. This data is utilized
to construct one or more signals that are sent to the endpoint device
hardware.</t>

<t>
Because of the media/rendering nature of the data path for haptic coded
data haptic-coded
data, the security profile of haptic data is expected to be largely
consistent with the security profile of visual and audio media data.</t>

<t>
As with any synthesized media data (audio, video, and haptics), there
is a security risk associated with execution of commands based on the
descriptive encoding either through its inherent extensibility or
through the insertion of arbitrary executable data in the descriptive
format itself. Indeed, media rendering systems are normally implemented
with a mix of user and kernel space execution since these media must
ultimately make their way to a hardware system. In theory, malicious
instructions present in descriptive haptic media have the potential
to execute arbitrary code in kernel space, effectively bypassing
system permissions structures and/or execution sandboxes.</t>

<t>
Haptics, audio, and video media have widespread use and careful attention
should be paid by operating system and device driver implementors to
ensure that synthesis and rendering signal paths do not provide attack
surfaces for malicious payloads.</t>

<t>
Thermal haptic devices (that provide a sensation of heat) and kinesthetic haptic devices (that provide force feedback) could potentially injure users if the heat or force, respectively, are not properly controlled or inadvertently exceed safety levels. Implementors need to ensure that adequate measures are taken to prevent such scenarios.</t>

<t>
These security considerations apply to the subtype registrations described in this document as well as all future haptics registrations.</t>
</section>

<section anchor="iana-considerations"><name>IANA Considerations</name>
<t>This specification registers a new top-level type, 'haptics',
and requests IANA to add it to
<t>IANA has registered 'haptics' in the "Top-Level Media Types" registry of top-level types specified
defined in <xref target="TOPLEVEL"></xref>, adds it target="RFC9694"></xref> and registered several subtypes.  IANA has also added 'haptics' as an alternative value of
&quot;Type Name&quot; in the media types registration form <xref target="Media-Type-Registration"></xref>,
and registers several subtypes for it.</t> target="Media-Type-Reg"></xref>.
</t>

<section anchor="definition-and-encoding"><name>Definition and Encoding</name>
<t>'haptics' as is the primary media content type indicates that indicates the
content identified by it requires a certain haptics subsystem such
as low-level haptics APIs, which in turn will require hardware
capabilities such as one or more actuators to render the haptics media.
The 'haptics' media type does not provide any specific information
about the underlying data format and how the haptics information should
be interpreted -- the subtypes defined within a 'haptics' tree name
the specific haptic formats. Unrecognized subtypes of 'haptics'
should be treated as 'application/octet-stream'.  Implementations
may still pass unrecognized subtypes to the haptics subsystem and
associated rendering hardware.</t>
</section>

<section anchor="registration-procedure"><name>Registration Procedure</name>
<t>New haptics formats should be registered requested using the Application for a Media Type online form
<xref target="Media-Type-Registration"></xref>. target="Media-Type-Reg"></xref>.  <xref target="RFC6838"></xref> should be consulted on
registration procedures.  In particular, the haptics specification
should preferably be freely available.</t>

<t>
Note that new subtypes may define parameters.  If
an implementation does not recognize a parameter sub-value in the comma-
separated comma-separated list, it should ignore the sub-value and continue
processing the other sub-values in the list.</t>
</section>

<section anchor="subtype-registrations"><name>Subtype Registrations</name>
<t>
In this section, the initial entries under the top-level 'haptics'
media type are specified.  They also serve as examples for future
registrations.</t>

<section anchor="ivs-haptics-type"><name>IVS Haptics Type</name>
<t>Type name: haptics</t>
<t>Subtype name: ivs</t>
<t>Required parameters: N/A</t>
<t>Optional parameters: N/A</t>
<t>Encoding considerations: 8bit
<dl newline="false">
<dt>Type name:</dt> <dd>haptics</dd>
<dt>Subtype name:</dt> <dd>ivs</dd>
<dt>Required parameters:</dt> <dd>N/A</dd>
<dt>Optional parameters:</dt> <dd>N/A</dd>
<dt>Encoding considerations:</dt> <dd>8bit if UTF-8; binary if UTF-16 or UTF-32</t>
<t>Interoperability considerations: The UTF-32</dd>
<dt>Interoperability considerations:</dt> <dd>The IVS format is a device-independent haptic effect coding based on the XML format. It is designed to enable interoperability between distinct physical endpoints. Not all devices may be able to render all effects present in an IVS file.</t>
<t>Security considerations: See Section 3 file.</dd>
<dt>Security considerations:</dt> <dd>See <xref target="security-considerations"/> of RFC XXXX.</t>
<t>[Note to RFC Editor: Please replace XXXX with the number of this RFC.]</t>
<t>Published specification: 9695.</dd>
<dt>Published specification:</dt> <dd> ISO/IEC JTC 1/SC 29/WG 2 N 0072 N0072 "Encoder Input Format for MPEG Haptics" <xref target="MPEG-Haptics-Encoder"></xref>.</t>
<t>Applications target="MPEG-Haptics-Encoder"></xref>.</dd>
<dt>Applications that use this media type:  All type:</dt> <dd>All applications that are able to create, edit, or display haptic media content.</t>
<t>Additional information:</t>
<ul>
    <li>File extension(s): Haptic content.</dd>
</dl>
<dl newline="true">
  <dt>Additional information:</dt>
  <dd><dl newline="false" spacing="compact">
    <dt>File extension(s):</dt> <dd>Haptic file extensions used for IVS files: .ivs</li>
    <li>Macintosh .ivs</dd>
    <dt>Macintosh file type code(s): (no code(s):</dt> <dd>(no code specified)</li>
    <li>Macintosh specified)</dd>
    <dt>Macintosh Universal Type Identifier code:  N/A</li>
    <li>Fragment Identifier: N/A</li>
    <li>Deprecated Alias: N/A</li>
</ul>
<t>Person code:</dt> <dd>N/A</dd>
    <dt>Fragment Identifier:</dt> <dd>N/A</dd>
    <dt>Deprecated Alias:</dt> <dd>N/A</dd>
  </dl>
  </dd>
</dl>
<dl newline="false">
<dt>Person &amp; email address to contact for further information: Yeshwant Muthusamy(yeshwant@yeshvik.com)</t>
<t>Change controller: ISO/IEC information:</dt> <dd><br/>Yeshwant Muthusamy(yeshwant@yeshvik.com)</dd>
<dt>Change controller:</dt> <dd>ISO/IEC JTC1/SC 29/WG 7 (MPEG 3D Graphics and Haptic Coding)</t> Coding)</dd>
</dl>

</section>

<section anchor="hjif-haptics-type"><name>HJIF Haptics Type</name>
<t>Type name: haptics</t>
<t>Subtype name: hjif</t>
<t>Required parameters: N/A</t>
<t>Optional parameters: N/A</t>
<t>Encoding considerations: 8bit
<dl newline="false">
<dt>Type name:</dt> <dd>haptics</dd>
<dt>Subtype name:</dt> <dd>hjif</dd>
<dt>Required parameters:</dt> <dd>N/A</dd>
<dt>Optional parameters:</dt> <dd>N/A</dd>
<dt>Encoding considerations:</dt> <dd>8bit if UTF-8; binary if UTF-16 or UTF-32</t>
<t>Interoperability considerations: The UTF-32</dd>
<dt>Interoperability considerations:</dt> <dd>The HJIF format is a human-readable haptic effect coding based on the JSON format. It is designed as an interchange format for temporal and spatial haptic effects. The haptic effects may target specific parts of the human body and may be associated with a reference device description allowing haptic rendering software to adapt the effects to available hardware.</t>
<t>Security considerations: See Section 3 hardware.</dd>
<dt>Security considerations:</dt> <dd>See <xref target="security-considerations"/> of RFC XXXX.</t>
<t>[Note to RFC Editor: Please replace XXXX with the number of this RFC.]</t>
<t>Published specification:  ISO/IEC 9695.</dd>

<dt>Published specification:</dt>  <dd>ISO/IEC DIS 23090-31: Haptics coding <xref target="MPEG-Haptics-Coding"></xref>.</t>
<t>Applications target="MPEG-Haptics-Coding"></xref>.</dd>
<dt>Applications that use this media type:  All type:</dt> <dd>All applications that are able to create, edit, or display haptic media content.</t>
<t>Additional information:</t>
<ul>
    <li>File extension(s): Haptic content.</dd>
</dl>
<dl newline="true" spacing="normal">
  <dt>Additional information:</dt>
  <dd><dl newline="false" spacing="compact">
    <dt>File extension(s):</dt> <dd>Haptic file extensions used for HJIF files: .hjif</li>
    <li>Macintosh .hjif</dd>
    <dt>Macintosh file type code(s): (no code(s):</dt> <dd>(no code specified)</li>
    <li>Macintosh specified)</dd>
    <dt>Macintosh Universal Type Identifier code:  N/A</li>
    <li>Fragment Identifier: N/A</li>
    <li>Deprecated Alias: N/A</li>
</ul>
<t>Person code:</dt> <dd>N/A</dd>
    <dt>Fragment Identifier:</dt> <dd>N/A</dd>
    <dt>Deprecated Alias:</dt> <dd>N/A</dd>
</dl></dd></dl>
<dl newline="false" spacing="normal">
<dt>Person &amp; email address to contact for further information: Yeshwant Muthusamy(yeshwant@yeshvik.com)</t>
<t>Change controller: ISO/IEC information:</dt> <dd><br/>Yeshwant Muthusamy(yeshwant@yeshvik.com)</dd>
<dt>Change controller:</dt> <dd>ISO/IEC JTC1/SC 29/WG 7 (MPEG 3D Graphics and Haptic Coding)</t> Coding)</dd>
</dl>

</section>
<section anchor="hmpg-haptics-type"><name>HMPG Haptics Type</name>
<t>Type name: haptics</t>
<t>Subtype name: hmpg</t>
<t>Required parameters: N/A</t>
<t>Optional parameters: N/A</t>
<t>Encoding considerations: binary</t>
<t>Interoperability considerations: The
<dl newline="false" spacing="normal">
<dt>Type name:</dt> <dd>haptics</dd>
<dt>Subtype name:</dt> <dd>hmpg</dd>
<dt>Required parameters:</dt> <dd>N/A</dd>
<dt>Optional parameters:</dt> <dd>N/A</dd>
<dt>Encoding considerations:</dt> <dd>binary</dd>
<dt>Interoperability considerations:</dt> <dd>The HMPG format is a streamable binary haptic effect coding. It is designed to enable efficient coding of temporal and spatial haptic effects. The haptic effects may target specific parts of the human body and may be associated with a reference device description allowing haptic rendering software to adapt the effects to available hardware. </t>
<t>Security considerations: See Section 3 </dd>
<dt>Security considerations:</dt> <dd>See <xref target="security-considerations"/>
of RFC XXXX.</t>
<t>[Note to RFC Editor: Please replace XXXX with the number of this RFC.]</t>
<t>Published specification:  ISO/IEC 9695.</dd>

<dt>Published specification:</dt>  <dd>ISO/IEC DIS 23090-31: Haptics coding <xref target="MPEG-Haptics-Coding"></xref>.</t>
<t>Applications target="MPEG-Haptics-Coding"></xref>.</dd>
<dt>Applications that use this media type:  All type:</dt>  <dd>All applications that are able to create, edit, or display haptic media content.</t>
<t>Additional information:</t>
<ul>
    <li>File extension(s): Haptic content.</dd>
</dl>
<dl newline="true" spacing="normal">
  <dt>Additional information:</dt>
  <dd><dl newline="false" spacing="compact">
    <dt>File extension(s):</dt> <dd>Haptic file extensions used for HMPG files: .hmpg</li>
    <li>Macintosh .hmpg</dd>
    <dt>Macintosh file type code(s): (no code(s):</dt> <dd>(no code specified)</li>
    <li>Macintosh specified)</dd>
    <dt>Macintosh Universal Type Identifier code:  N/A</li>
    <li>Fragment Identifier: N/A</li>
    <li>Deprecated Alias: N/A</li>
</ul>
<t>Person code:</dt>  <dd>N/A</dd>
    <dt>Fragment Identifier:</dt> <dd>N/A</dd>
    <dt>Deprecated Alias:</dt> <dd>N/A</dd>
  </dl></dd></dl>
<dl newline="false" spacing="normal">
<dt>Person &amp; email address to contact for further information: Yeshwant Muthusamy(yeshwant@yeshvik.com)</t>
<t>Change controller: ISO/IEC information:</dt> <dd><br/>Yeshwant Muthusamy(yeshwant@yeshvik.com)</dd>
<dt>Change controller:</dt> <dd>ISO/IEC JTC1/SC 29/WG 7 (MPEG 3D Graphics and Haptic Coding)</t> Coding)</dd>
</dl>

</section>

</section>
</section>

</middle>

<back>
<references><name>Normative References</name>
<xi:include href="https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.2119.xml"/> href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.2119.xml"/>
<xi:include href="https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.8174.xml"/> href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.8174.xml"/>
<xi:include href="https://xml2rfc.ietf.org/public/rfc/bibxml/reference.RFC.6838.xml"/> href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.6838.xml"/>

<!-- [I-D.ietf-mediaman-toplevel] RFC 9694 -->
<reference anchor="TOPLEVEL" target="https://datatracker.ietf.org/doc/draft-ietf-mediaman-toplevel/03/"> anchor="RFC9694" target="https://www.rfc-editor.org/info/rfc9694">
<front>
<title>Guidelines for the Definition of New Top-Level Media Types</title>
<author initials="M. J." initials="M." surname="Dürst" fullname="Martin J. Dürst">
<organization>Aoyama Gakuin University</organization>
</author>
<date month="March" day="26" year="2023"/> month="December" year="2024"/>
</front>
<seriesInfo name="Internet-Draft" value="draft-ietf-mediaman-toplevel-03"/> name="RFC" value="9694"/>
<seriesInfo name="DOI" value="10.17487/RFC9694"/>

</reference>
</references>
<references><name>Informative References</name>
<reference anchor="ISOBMFF-IS" target="https://www.iso.org/standard/83102.html">
  <front>
    <title>ISO/IEC

<!-- [rfced] [ISOBMFF-IS] This reference is the most current
version of this standard, but there is a note on this version that states
"Expected to be replaced by ISO/IEC DIS 14496-12.2 within the coming
months."  Please let us know if publication of this document should be delayed until
ISO/IEC DIS 14496-12.2 is formally published (see https://www.iso.org/standard/85596.html).

Original:
   [ISOBMFF-IS]
              "ISO/IEC 14496-12 (7th Edition) Information technology —
              Coding of audio-visual objects — Part 12: ISO base media
              file format", <https://www.iso.org/standard/83102.html>.
-->
<reference anchor="ISOBMFF-IS" target="https://www.iso.org/standard/83102.html">
  <front>
    <title>Information technology - Coding of audio-visual objects - Part 12: ISO base media file format</title>
    <author/>
    <date/>
    <author>
       <organization>ISO/IEC</organization>
    </author>
    <date month="January" year="2022"/>
  </front>
  <seriesInfo name="ISO/IEC" value="14496-12:2022"/>
  <refcontent>7th Edition</refcontent>
</reference>

<reference anchor="MPEG-Haptics-Encoder" target="https://www.mpegstandards.org/standards/Explorations/40/">
  <front>
    <title>Encoder Input Format for MPEG Haptics</title>
    <author/>
    <date/>
    <author>
       <organization>MPEG</organization>
    </author>
    <date day="15" month="May" year="2021"/>
  </front>
  <refcontent>MPEG 134 Meeting Document</refcontent>
</reference>

<reference anchor="AHAP" target="https://developer.apple.com/documentation/corehaptics/representing_haptic_patterns_in_ahap_files">
  <front>
    <title>Apple Haptic Audio Pattern</title>
    <author/>
    <date/>
    <title>Representing haptic patterns in AHAP files</title>
    <author>
       <organization>Apple Inc.</organization>
    </author>
  </front>
  <refcontent>Apple Developer Documentation</refcontent>
</reference>

<reference anchor="MPEG-Haptics-Coding" target="https://www.iso.org/standard/86122.html">
  <front>
    <title>ISO/IEC DIS 23090-31 Information
    <title>Information Technology — -- Coded representation of immersive media — -- Part 31: Haptics coding</title>
    <author/>
    <date/>
    <author>
       <organization>ISO/IEC</organization>
    </author>
  </front>
  <seriesInfo name="ISO/IEC" value="FDIS 23090-31"/>
  <refcontent>Final Draft International Standard</refcontent>
</reference>

<reference anchor="W3C-Vibration" target="https://www.w3.org/TR/vibration/"> target="https://www.w3.org/TR/2016/REC-vibration-20161018/">
  <front>
    <title>W3C Vibration
    <title>Vibration API (Second Edition)</title>
    <author/>
    <date/>
    <author>
       <organization>W3C</organization>
    </author>
    <date day="18" month="October" year="2016"/>
  </front>
  <refcontent>W3C Recommendation</refcontent>
  <annotation>Latest version available at <eref target="https://www.w3.org/TR/vibration/" brackets="angle"/></annotation>
</reference>

<reference anchor="W3C-Gamepad" target="https://w3c.github.io/gamepad/extensions.html">
  <front>
    <title>W3C Gamepad
    <title>Gamepad Extensions</title>
    <author/>
    <date/>
    <author>
       <organization>W3C</organization>
    </author>
    <date day="9" month="August" year="2024"/>
  </front>
  <refcontent>W3C Editor's Draft</refcontent>
  <annotation>Latest version available at <eref target="https://w3c.github.io/gamepad/extensions.html" brackets="angle"/></annotation>
</reference>

<!-- [rfced] [IEEE-P191811] The original URL redirected to the
search page for IEEE Standards: https://standards.ieee.org/standard/.
We have updated the reference as described on
https://ieeexplore.ieee.org/document/10555007.  The status is marked as "Inactive - Draft".  Please review and let us know if any updates are needed.

   [IEEE-P191811]
              "P1918.1.1 - Haptic Codecs for the Tactile Internet",
              <https://standards.ieee.org/project/1918_1_1.html>.
-->
<reference anchor="IEEE-191811" target="https://ieeexplore.ieee.org/document/10042202">
  <front>
    <title>IEEE Draft Standard for Haptic Codecs for the Tactile Internet</title>
    <author>
       <organization>IEEE</organization>
    </author>
    <date month="March" year="2023"/>
  </front>
  <seriesInfo name="IEEE" value="P1918.1.1/D3"/>
</reference>
<!-- old reference
Note to PE: If authors accept changes, I recommend changing the cite tag from
[IEEE-P191811] to [IEEE-191811] or something similar. XML for the draft
standard if the authors object to the update:

<reference anchor="IEEE-P191811" target="https://standards.ieee.org/project/1918_1_1.html"> target="https://ieeexplore.ieee.org/document/10555007">
  <front>
    <title>P1918.1.1 -
    <title>IEEE Standard for Haptic Codecs for the Tactile Internet</title>
    <author/>
    <date/>
    <author>
       <organization>IEEE</organization>
    </author>
    <date month="June" year="2024"/>
  </front>
</reference>
  <seriesInfo name="IEEE Std" value="1918.1.1-2024"/>
  <seriesInfo name="DOI" value="10.1109/IEEESTD.2024.10555007"/>
</reference>-->

<reference anchor="Media-Type-Registration" anchor="Media-Type-Reg" target="http://www.iana.org/form/media-types">
  <front>
    <title>IANA, Application
    <title>Application for a Media Type</title>
    <author/>
    <date/>
    <author>
       <organization>IANA</organization>
    </author>
  </front>
</reference>

</references>
<!-- [rfced] Please review the "Inclusive Language" portion of the online
Style Guide <https://www.rfc-editor.org/styleguide/part2/#inclusive_language>
and let us know if any changes are needed.  Updates of this nature typically
result in more precise language, which is helpful for readers.

For example, please consider whether the following should be updated:
   native

Perhaps "built-in" would work?
-->

</back>

</rfc>