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<concept id="GUID-CC96F41D-5AC9-5D11-BD4D-073548EA5CC8" xml:lang="en"><title>Multimedia

Hardware Adaptation Interfaces Overview</title><prolog><metadata><keywords/></metadata></prolog><conbody>

<p>This document introduces you to the Multimedia Hardware Adaptation Interfaces

collection. </p>

<section><title>Purpose</title> <p>The Multimedia Hardware Adaptation Interfaces

(HAI) collection defines hardware-independent interfaces for controlling the

hardware component, such as:<ul>

<li><p>Mobile TV reception</p></li>

<li><p>Video hardware</p></li>

</ul> </p> </section>

<section><title>Architectural Relationship</title> <p>Symbian

provides APIs for use by hardware integrators so they can implement their

own mobile TV solutions. </p><p>The APIs are introduced with their components.

The Multimedia components DevVideo and DevSound provide APIs for handling

the media data once the raw data stream has been extracted by the Multimedia

HAI components. </p> </section>

<section><title>Description</title> <p>The Multimedia HAI provides support

for controlling the hardware component, and handling the data streams. </p><p>The APIs provided make it possible to write

an implementation of a supported mobile TV standard that can control and manage

the incoming signals including splitting the signal into an audio, video and

information stream. </p> </section>

<section><title>Supported Mobile TV standards</title><p>Support

is currently provided for the DVB-H (Digital Video Broadcast-Handset) transmission

standard. DVB-H is a superset of the DVB-T (Digital Video Broadcast-Terrestrial)

standard. </p></section>

<section><title>Other Mobile TV standards</title><p>Other

standard mobile TV formats include: </p> <ul>

<li id="GUID-861CB11D-7C55-5D57-A825-D16CBF3AD330"><p>Digital Multimedia Broadcasting

(DMB) </p> </li>

<li id="GUID-E4C54F43-785D-57BD-A0C3-A5BB8F407E21"><p>TDtv (subset of TD-CDMA) </p> </li>

<li id="GUID-01A4C66A-7B2A-5E46-8688-6A07950AE3BF"><p>1seg (part of ISDB-T) </p> </li>

<li id="GUID-022B7FB3-B83E-5B17-9590-ADA3E4919B95"><p>DAB </p> </li>

<li id="GUID-13658006-55E6-55F7-9F24-F84D4BBCD8FF"><p>MediaFLO </p> </li>

</ul> <p> <b> Note:</b> The Symbian platform does not provide any support

for these other standards at present. </p></section>

<section><title>Components</title> <p>The Multimedia HAI collection includes

the following: </p> <ul>

<li id="GUID-5E347E40-5F5B-57A4-AD17-5DAA0240778B"><p>Mobile

TV DVB-H Receiver HAI </p> </li>

<li id="GUID-E0BCB995-BC4D-5594-A3A5-32BA557459E7"><p>Video HAI </p> </li>

</ul> </section>

<section><title>Mobile TV DVB-H Receiver

HAI</title><p>The <xref href="GUID-4D93A8E2-DB78-5681-BD0E-54B02D92140F.dita">Mobile

TV DVB-H Receiver HAI</xref> allows an implementation to be written for the

only (currently) supported mobile TV standard, DVB-H. </p></section>

<section><title>Video HAI</title><p>The <xref href="GUID-D9D2A600-89C6-5D82-8BC0-2C60D8F6517A.dita">Video

HAI</xref> defines an interface for plug-ins that provide video functionality. </p></section>

<section><title>Using Multimedia HAI</title> <p>Hardware integrators can write

device drivers or servers to manage the component like:</p><ul>

<li><p>Reception of mobile TV signals (currently

only DVB-H)</p></li>

<li><p>Video</p></li>

</ul><p>These components expose APIs that are independent of

the underlying implementation and hardware specifics. </p> </section>

</conbody><related-links>

<link href="GUID-4D93A8E2-DB78-5681-BD0E-54B02D92140F.dita">

<linktext>Mobile TV DVB-H Receiver HAI Component Overview</linktext></link>

<link href="GUID-D9D2A600-89C6-5D82-8BC0-2C60D8F6517A.dita"><linktext>Video HAI

Component Overview</linktext></link>