author | Dominic Pinkman <dominic.pinkman@nokia.com> |
Fri, 11 Jun 2010 15:24:34 +0100 | |
changeset 9 | 59758314f811 |
parent 5 | f345bda72bc4 |
child 12 | 80ef3a206772 |
permissions | -rw-r--r-- |
9
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<?xml version="1.0" encoding="utf-8"?> |
59758314f811
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<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. --> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<!-- This component and the accompanying materials are made available under the terms of the License |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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"Eclipse Public License v1.0" which accompanies this distribution, |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". --> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<!-- Initial Contributors: |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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Nokia Corporation - initial contribution. |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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Contributors: |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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--> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<!DOCTYPE concept |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd"> |
59758314f811
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<concept id="GUID-D5DDC05E-B8C6-5BF0-AEBA-EED1D88BB5BB" xml:lang="en"><title>CAF |
59758314f811
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Streaming Support Overview</title><abstract><p><xref href="GUID-7EE46FD9-DC9E-5C1F-9AC5-48F5212AF0CA.dita">CAF</xref> Streaming |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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Support component comprises a framework that provides interfaces for managing <xref href="http://en.wikipedia.org/wiki/Digital_rights_management" scope="external">Digital |
59758314f811
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Rights Management (DRM)</xref> protected streamed data. </p></abstract><prolog><metadata><keywords/></metadata></prolog><conbody> |
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<section><title>Purpose</title> <p>CAF streaming framework provides interfaces |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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for applications to access DRM protected data stream using streaming agents. |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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A CAF streaming agent is an ECom plug-in that provides streaming <xref href="http://en.wikipedia.org/wiki/Digital_rights_management" scope="external">DRM</xref> data support in CAF. </p> <p>Device creators can |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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use the interfaces provided by the framework to support streaming DRM content. </p> </section> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<section><title>Key concepts</title> <dl> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<dlentry> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<dt>CAF streaming agent</dt> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<dd><p>A CAF streaming agent is an ECom plug-in that provides streaming <xref href="http://en.wikipedia.org/wiki/Digital_rights_management" scope="external">DRM</xref> data |
59758314f811
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support. </p> </dd> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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</dlentry> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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parents:
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<dlentry> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<dt>Key stream</dt> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<dd><p>A stream of data and meta-data required for decrypting encrypted media |
59758314f811
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streams. </p> </dd> |
59758314f811
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</dlentry> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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parents:
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<dlentry> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<dt>Key stream decoder</dt> |
59758314f811
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<dd><p>A key stream decoder decrypts the key stream. </p> </dd> |
59758314f811
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</dlentry> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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parents:
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<dlentry> |
59758314f811
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<dt>Data stream</dt> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<dd><p>A sequence of digitally encrypted packets of data (media data). </p> </dd> |
59758314f811
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</dlentry> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
Dominic Pinkman <dominic.pinkman@nokia.com>
parents:
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<dlentry> |
59758314f811
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<dt>Short-term key</dt> |
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<dd><p>A key that decrypts data packets. </p> </dd> |
59758314f811
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</dlentry> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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parents:
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<dlentry> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<dt>Long-term key</dt> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<dd><p>A key that encrypts short-term keys. </p> </dd> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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</dlentry> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
Dominic Pinkman <dominic.pinkman@nokia.com>
parents:
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<dlentry> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<dt>Cryptographic context</dt> |
59758314f811
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<dd><p>The key data along with its corresponding meta-data, such as algorithms |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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and usage parameters. </p> </dd> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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</dlentry> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<dlentry> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<dt>Rights Object</dt> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<dd><p>A file that includes long-term keys, usage rights such as the validity |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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and expiry dates for which the subscription is purchased and post-acquisition |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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rights. </p> </dd> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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</dlentry> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<dlentry> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<dt>Session Description Protocol (SDP) </dt> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<dd><p>The SDP protocol specifies the properties of a streaming media session. |
59758314f811
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The protocol includes information such as audio and video encoding type, addresses |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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for delivering the respective streams, protection of the streamed data and |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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so on. </p> </dd> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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</dlentry> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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</dl> </section> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<section><title>Architecture</title> <p> <i>CAF for Streaming Support</i> handles |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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DRM protected key stream. The framework handles specific standards including <xref href="http://en.wikipedia.org/wiki/DVB-H" scope="external">DVB-H</xref> and <xref href="http://en.wikipedia.org/wiki/OMA_BCAST" scope="external">OMA DRM BCAST</xref> (DRM |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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and SmartCard profiles) using CAF streaming agent. The CAF streaming agent |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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manages the key stream, but does not process the data stream. </p> <p>The |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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agent receives a key stream containing short-term key. It checks if the received |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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key stream is supported and if so, associates it with an appropriate key stream |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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decoder for decryption and pushes the decrypted (cryptographic) context to |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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data processing stack such as <i>CommsServer</i> for processing the data stream. </p> <p>The |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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agent and entities in the data processing stack have to be assured and maintained |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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for setting the cryptographic context (short-term key and relevant algorithms). |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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The processed data is then passed to the appropriate streaming player middleware |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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(audio or video device drivers) for playback or recording using <b>Multimedia |
59758314f811
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Framework</b>. </p> <fig id="GUID-CF002BDE-3759-5603-AC5C-546ADC4DAA86"> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<title> CAF Streaming Support Architecture </title> |
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<image href="GUID-DF14773D-6A2E-5FAD-A1CC-5D54E53BEA2E_d0e618485_href.png" placement="inline"/> |
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</fig> <p>For information about the set-up and tear down of streaming session, |
59758314f811
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see <xref href="GUID-DD95C4FA-B044-5A0E-A556-C7171AEFED8E.dita">Streaming Session |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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Sequence</xref>. </p> </section> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<section><title>APIs</title> <p>The streaming CAF interfaces are defined using |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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the namespace <xref href="GUID-D6AB6275-9EEF-370C-8556-D6354FB46583.dita"><apiname>StreamAccess</apiname></xref>. </p> <table id="GUID-E60A4002-2D6B-5F94-B3D3-661AF3BE8722"> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<tgroup cols="2"><colspec colname="col0"/><colspec colname="col1"/> |
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<thead> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<row> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<entry>Class Name</entry> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<entry>Description</entry> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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</row> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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</thead> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<tbody> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<row> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<entry><p> <xref href="GUID-D6AB6275-9EEF-370C-8556-D6354FB46583.dita#GUID-D6AB6275-9EEF-370C-8556-D6354FB46583/GUID-358B5544-5184-342E-9968-7EDA1D185811"><apiname>StreamAccess::CAgentKeyStreamDecoder</apiname></xref> </p> </entry> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<entry><p>Represents the base class for a CAF streaming agent </p> </entry> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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97 |
</row> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<row> |
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<entry><p> <xref href="GUID-D6AB6275-9EEF-370C-8556-D6354FB46583.dita#GUID-D6AB6275-9EEF-370C-8556-D6354FB46583/GUID-88594631-30C1-3046-B2D4-1DE7128699A2"><apiname>StreamAccess::CKeyStreamDecoder</apiname></xref> </p> </entry> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<entry><p>Allows clients to instantiate key stream decoders for short-term |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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key streams in protected broadcasts. </p> </entry> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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</row> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<row> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<entry><p> <xref href="GUID-D6AB6275-9EEF-370C-8556-D6354FB46583.dita#GUID-D6AB6275-9EEF-370C-8556-D6354FB46583/GUID-8CBEED82-471C-3198-ACED-C1A2F5C23216"><apiname>StreamAccess::CStreamAgentFactory</apiname></xref> </p> </entry> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<entry><p>Represents a factory class responsible for creating instances of <xref href="GUID-D6AB6275-9EEF-370C-8556-D6354FB46583.dita#GUID-D6AB6275-9EEF-370C-8556-D6354FB46583/GUID-88594631-30C1-3046-B2D4-1DE7128699A2"><apiname>StreamAccess::CKeyStreamDecoder</apiname></xref>. </p> </entry> |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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</row> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<row> |
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<entry><p> <xref href="GUID-D6AB6275-9EEF-370C-8556-D6354FB46583.dita#GUID-D6AB6275-9EEF-370C-8556-D6354FB46583/GUID-F7615BC3-73C7-33B4-96B6-00AF9B10AB3C"><apiname>StreamAccess::CKeyStreamSink</apiname></xref> </p> </entry> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<entry><p>Defines the abstract class for key stream sink. Key stream sink |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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is used for applying keys decrypted by the CAF streaming agent to their correct |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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destination. </p> </entry> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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</row> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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</tbody> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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</tgroup> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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</table> <p>A CAF streaming agent plug-in must implement <xref href="GUID-CB467A21-BFBF-3DB8-8163-8E3ED9191B4C.dita"><apiname>CAgentKeyStreamDecoder</apiname></xref>. |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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A streaming player middleware, for example the Multimedia Framework controller |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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(MMF controller), must use <xref href="GUID-EE67D14D-1011-3B27-ADEC-C6C192339903.dita"><apiname>CKeyStreamDecoder</apiname></xref>. The figure |
59758314f811
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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below shows the key classes of CAF streaming agent. </p> <fig id="GUID-5A9F3FAB-E8FC-53B4-B71B-1D2A616E89BA"> |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<title> Class diagram </title> |
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<image href="GUID-3FEA5BE8-C306-587F-8CCC-E4619DE7183A_d0e618617_href.png" placement="inline"/> |
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</fig> </section> |
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<section><title>Typical uses</title> <p>CAF Streaming Support provides interfaces |
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to create an ECom based streaming agent. A streaming player middleware such |
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Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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as MMF controller uses streaming agent to view and access the key stream. |
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For more information, see <xref href="GUID-D5DDC05E-B8C6-5BF0-AEBA-EED1D88BB5BB.dita">CAF |
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Streaming Support Tutorials</xref> . </p> </section> |
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</conbody><related-links> |
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<link href="GUID-92FC3BBB-9C80-5665-8421-5C6A11BE4A5C.dita"><linktext> CAF Streaming |
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Support Concepts</linktext></link> |
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<link href="GUID-4AAE6CC7-7F0B-51B7-8F6F-7E538841DF41.dita"><linktext>Writing CAF |
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Streaming Agents</linktext></link> |
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</related-links></concept> |