|
1 <?xml version="1.0" encoding="utf-8"?> |
|
2 <!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. --> |
|
3 <!-- This component and the accompanying materials are made available under the terms of the License |
|
4 "Eclipse Public License v1.0" which accompanies this distribution, |
|
5 and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". --> |
|
6 <!-- Initial Contributors: |
|
7 Nokia Corporation - initial contribution. |
|
8 Contributors: |
|
9 --> |
|
10 <!DOCTYPE concept |
|
11 PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd"> |
|
12 <concept id="GUID-CC96F41D-5AC9-5D11-BD4D-073548EA5CC8" xml:lang="en"><title>Multimedia |
|
13 Hardware Adaptation Interfaces Overview</title><prolog><metadata><keywords/></metadata></prolog><conbody> |
|
14 <p>This document introduces you to the Multimedia Hardware Adaptation Interfaces |
|
15 collection. </p> |
|
16 <section><title>Purpose</title> <p>The Multimedia Hardware Adaptation Interfaces |
|
17 (HAI) collection defines hardware-independent interfaces for controlling the |
|
18 hardware component, such as:<ul> |
|
19 <li><p>Mobile TV reception</p></li> |
|
20 <li><p>Video hardware</p></li> |
|
21 </ul> </p> </section> |
|
22 <section><title>Architectural Relationship</title> <p>Symbian |
|
23 provides APIs for use by hardware integrators so they can implement their |
|
24 own mobile TV solutions. </p><p>The APIs are introduced with their components. |
|
25 The Multimedia components DevVideo and DevSound provide APIs for handling |
|
26 the media data once the raw data stream has been extracted by the Multimedia |
|
27 HAI components. </p> </section> |
|
28 <section><title>Description</title> <p>The Multimedia HAI provides support |
|
29 for controlling the hardware component, and handling the data streams. </p><p>The APIs provided make it possible to write |
|
30 an implementation of a supported mobile TV standard that can control and manage |
|
31 the incoming signals including splitting the signal into an audio, video and |
|
32 information stream. </p> </section> |
|
33 <section><title>Supported Mobile TV standards</title><p>Support |
|
34 is currently provided for the DVB-H (Digital Video Broadcast-Handset) transmission |
|
35 standard. DVB-H is a superset of the DVB-T (Digital Video Broadcast-Terrestrial) |
|
36 standard. </p></section> |
|
37 <section><title>Other Mobile TV standards</title><p>Other |
|
38 standard mobile TV formats include: </p> <ul> |
|
39 <li id="GUID-861CB11D-7C55-5D57-A825-D16CBF3AD330"><p>Digital Multimedia Broadcasting |
|
40 (DMB) </p> </li> |
|
41 <li id="GUID-E4C54F43-785D-57BD-A0C3-A5BB8F407E21"><p>TDtv (subset of TD-CDMA) </p> </li> |
|
42 <li id="GUID-01A4C66A-7B2A-5E46-8688-6A07950AE3BF"><p>1seg (part of ISDB-T) </p> </li> |
|
43 <li id="GUID-022B7FB3-B83E-5B17-9590-ADA3E4919B95"><p>DAB </p> </li> |
|
44 <li id="GUID-13658006-55E6-55F7-9F24-F84D4BBCD8FF"><p>MediaFLO </p> </li> |
|
45 </ul> <p> <b> Note:</b> The Symbian platform does not provide any support |
|
46 for these other standards at present. </p></section> |
|
47 <section><title>Components</title> <p>The Multimedia HAI collection includes |
|
48 the following: </p> <ul> |
|
49 <li id="GUID-5E347E40-5F5B-57A4-AD17-5DAA0240778B"><p>Mobile |
|
50 TV DVB-H Receiver HAI </p> </li> |
|
51 <li id="GUID-E0BCB995-BC4D-5594-A3A5-32BA557459E7"><p>Video HAI </p> </li> |
|
52 </ul> </section> |
|
53 <section><title>Mobile TV DVB-H Receiver |
|
54 HAI</title><p>The <xref href="GUID-4D93A8E2-DB78-5681-BD0E-54B02D92140F.dita">Mobile |
|
55 TV DVB-H Receiver HAI</xref> allows an implementation to be written for the |
|
56 only (currently) supported mobile TV standard, DVB-H. </p></section> |
|
57 <section><title>Video HAI</title><p>The <xref href="GUID-D9D2A600-89C6-5D82-8BC0-2C60D8F6517A.dita">Video |
|
58 HAI</xref> defines an interface for plug-ins that provide video functionality. </p></section> |
|
59 <section><title>Using Multimedia HAI</title> <p>Hardware integrators can write |
|
60 device drivers or servers to manage the component like:</p><ul> |
|
61 <li><p>Reception of mobile TV signals (currently |
|
62 only DVB-H)</p></li> |
|
63 <li><p>Video</p></li> |
|
64 </ul><p>These components expose APIs that are independent of |
|
65 the underlying implementation and hardware specifics. </p> </section> |
|
66 </conbody><related-links> |
|
67 <link href="GUID-4D93A8E2-DB78-5681-BD0E-54B02D92140F.dita"> |
|
68 <linktext>Mobile TV DVB-H Receiver HAI Component Overview</linktext></link> |
|
69 <link href="GUID-D9D2A600-89C6-5D82-8BC0-2C60D8F6517A.dita"><linktext>Video HAI |
|
70 Component Overview</linktext></link> |
|
71 </related-links></concept> |