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Symbian3/SDK/Source/GUID-AB9A3EA2-2B99-4502-A161-8EE5BF477D41.dita
changeset 0 89d6a7a84779 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Symbian3/SDK/Source/GUID-AB9A3EA2-2B99-4502-A161-8EE5BF477D41.dita	Thu Jan 21 18:18:20 2010 +0000
@@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
+<!-- This component and the accompanying materials are made available under the terms of the License 
+"Eclipse Public License v1.0" which accompanies this distribution, 
+and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
+<!-- Initial Contributors:
+    Nokia Corporation - initial contribution.
+Contributors: 
+-->
+<!DOCTYPE concept
+  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<concept id="GUID-AB9A3EA2-2B99-4502-A161-8EE5BF477D41" xml:lang="en"><title>Capturing
+a video clip</title><prolog><metadata><keywords/></metadata></prolog><conbody>
+<p>To record video data to a file, descriptor, or an URL, use the video
+recorder utility of the Multimedia Framework (MMF) to develop your application.
+To make use of the onboard camera to capture a video clip, the application
+needs to repeat the steps described in the illustration below.</p>
+<fig id="GUID-FEDF24E9-1171-4814-B3C9-21B4E37003BB"><title>The steps required to capture a video clip</title><image href="GUID-141D8786-9987-4E5E-9395-484C87B323FB_d0e267376_href.png"/></fig>
+<p>Important implementation considerations include:</p>
+<ul>
+<li><p>To open a file for recording the <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Multimedia_Framework/CVideoRecorderUtilityClass.html" format="application/java-archive"><codeph>CVideoRecorderUtility</codeph></xref> class requires the MMF Controller Framework API to specify controller and
+format UIDs.</p></li>
+<li><p>If you need to use the display of the device as a viewfinder
+for your video application, request viewfinder frames using the <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Camera_Framework/CCameraClass.html" format="application/java-archive"><codeph>CCamera</codeph></xref> class, and draw them yourself. For more information, see step
+3 in <xref href="GUID-A1D2C673-3B91-403A-800B-5E1504FB19EE.dita#GUID-A1D2C673-3B91-403A-800B-5E1504FB19EE/GUID-A7ED7A90-1432-4905-A0A5-0CC725997127"/>.</p>
+</li>
+<li><p>The settings you can use in your application depend on what
+the camera hardware on the device supports.</p></li>
+</ul>
+<section><title>To capture a video clip</title>
+<p>Use the methods of the <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Multimedia_Framework/CVideoRecorderUtilityClass.html" format="application/java-archive"><codeph>CVideoRecorderUtility</codeph></xref> class to construct your application.</p>
+<ol>
+<li id="GUID-77A80BE7-A452-42C4-A815-712402597071"><p>Initialize
+the video recorder.</p>
+<ul>
+<li><p>Create a video recorder object using the <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Multimedia_Framework/CVideoRecorderUtilityClass.html#%3a%3aCVideoRecorderUtility%3a%3aNewL%28MVideoRecorderUtilityObserver%20%26amp%3b%2cTInt%2cTMdaPriorityPreference%29" format="application/java-archive"><codeph>CVideoRecorderUtility::NewL</codeph></xref> method.</p>
+</li>
+<li><p>Resolve the supported video format and retrieve a list of
+controllers using the <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Multimedia_Framework/CMMFControllerPluginSelectionParametersClass.html" format="application/java-archive"><codeph>CMMFControllerPluginSelectionParameters</codeph></xref> and <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Multimedia_Framework/CMMFFormatSelectionParametersClass.html" format="application/java-archive"><codeph>CMMFFormatSelectionParameters</codeph></xref> classes, and the respective type definitions <codeph>RMMFControllerImplInfoArray</codeph> and <codeph>RMMFFormatImplInfoArray</codeph>. </p></li>
+<li><p>Open a file, descriptor or an URL to store the video clip
+in using the respective <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Multimedia_Framework/CVideoRecorderUtilityClass.html#%3a%3aCVideoRecorderUtility%3a%3aOpenFileL%28const%20TDesC%20%26amp%3b%2cTInt%2cTUid%2cTUid%2cconst%20TDesC8%20%26amp%3b%2cTFourCC%29" format="application/java-archive"><codeph>CVideoRecorderUtility::OpenFileL</codeph></xref>, <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Multimedia_Framework/CVideoRecorderUtilityClass.html#%3a%3aCVideoRecorderUtility%3a%3aOpenDesL%28TDes8%20%26amp%3b%2cTInt%2cTUid%2cTUid%2cconst%20TDesC8%20%26amp%3b%2cTFourCC%29" format="application/java-archive"><codeph>CVideoRecorderUtility::OpenDesL</codeph></xref>, or <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Multimedia_Framework/CVideoRecorderUtilityClass.html#%3a%3aCVideoRecorderUtility%3a%3aOpenUrlL%28const%20TDesC%20%26amp%3b%2cTInt%2cTInt%2cTUid%2cTUid%2cconst%20TDesC8%20%26amp%3b%2cTFourCC%29" format="application/java-archive"><codeph>CVideoRecorderUtility::OpenUrlL</codeph></xref> method.</p>
+</li>
+<li><p>Set the maximum video clip size using the <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Multimedia_Framework/CVideoRecorderUtilityClass.html#%3a%3aCVideoRecorderUtility%3a%3aSetMaxClipSizeL%28TInt%29" format="application/java-archive"><codeph>CVideoRecorderUtility::SetMaxClipSizeL()</codeph></xref> method.</p>
+</li>
+<li><p>Prepare the record controller using the <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Multimedia_Framework/CVideoRecorderUtilityClass.html#%3a%3aCVideoRecorderUtility%3a%3aPrepare%28%29" format="application/java-archive"><codeph>CVideoRecorderUtility::Prepare()</codeph></xref> method. <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Multimedia_Framework/MVideoRecorderUtilityObserverClass.html#%3a%3aMVideoRecorderUtilityObserver%3a%3aMvruoPrepareComplete%28TInt%29" format="application/java-archive"><codeph>MVideoRecorderUtilityObserver::MvruoPrepareComplete</codeph></xref> is
+called upon completion.</p></li>
+</ul>
+</li>
+<li id="GUID-8A46469A-E0BE-4789-ADEE-C900FF7CB331"><p>Configure
+the audio and video settings.</p><p>You can check and set, for example,
+the recording priority, audio track, video frame size and frame rate, audio
+and video codecs and bit rates, and recording gain of the video clip. For
+more information on the options, see the <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Multimedia_Framework/CVideoRecorderUtilityClass.html" format="application/java-archive"><codeph>CVideoRecorderUtility</codeph></xref> class.</p></li>
+<li id="GUID-CB57B0CC-14AD-464F-82FF-9D80CD369CD5"><p>Capture the
+video clip.</p>
+<ul>
+<li><p>Start recording a video using the <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Multimedia_Framework/CVideoRecorderUtilityClass.html#%3a%3aCVideoRecorderUtility%3a%3aRecord%28%29" format="application/java-archive"><codeph>CVideoRecorderUtility::Record()</codeph></xref> method.</p></li>
+<li><p>Pause recording using the <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Multimedia_Framework/CVideoRecorderUtilityClass.html#%3a%3aCVideoRecorderUtility%3a%3aPauseL%28%29" format="application/java-archive"><codeph>CVideoRecorderUtility::PauseL()</codeph></xref> method.</p></li>
+<li><p>Stop recording using the <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Multimedia_Framework/CVideoRecorderUtilityClass.html#%3a%3aCVideoRecorderUtility%3a%3aStop%28%29" format="application/java-archive"><codeph>CVideoRecorderUtility::Stop()</codeph></xref> method.</p></li>
+</ul>
+</li>
+<li id="GUID-6CB8476D-CC81-4776-B42F-F6AF3EDEBE76"><p>To exit the
+application or to switch it to the background, close audio and video controllers
+using the <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Multimedia_Framework/CVideoRecorderUtilityClass.html#%3a%3aCVideoRecorderUtility%3a%3aClose%28%29" format="application/java-archive"><codeph>CVideoRecorderUtility::Close()</codeph></xref> method.</p>
+</li>
+<li id="GUID-1E55A71D-1A7F-4734-9DC5-713DA776F3C6"><p>Include <codeph>VideoRecorder.h</codeph> and <codeph>mmfcontrollerpluginresolver.h</codeph> header files in the appropriate class files.</p></li>
+<li id="GUID-CA9BF127-499A-4EFE-9E63-74032194200F"><p>Make sure
+you have correct <xref href="GUID-6971B0A2-F79B-4E05-8AF3-BB1FC1932A22.dita">capabilities</xref> information
+set for your application. You need at least the <codeph>UserEnvironment</codeph> capability.
+If you want to set the recording priority for the video and audio device,
+you need the <codeph>MultimediaDD</codeph> capability.</p></li>
+<li id="GUID-78DDD170-958F-4FD2-87ED-A550CCB4D7E3"><p>Make sure <codeph>mediaclientvideo.lib</codeph> and <codeph>mmfcontrollerframework.lib</codeph> are accessible to your linker when compiling your application by including
+it in your <codeph>mmp</codeph> file or by editing the project properties
+in your IDE, depending on your build environment.</p></li>
+</ol>
+</section>
+<section><title>Additional information on capturing a video</title>
+<p>For a reference example, see the <xref href="http://www.forum.nokia.com/info/sw.nokia.com/id/48d38e98-2b78-4da8-b111-63e9c7d34feb/S60_Platform_Video_Example_v2_0_en.zip.html" scope="external">S60 Platform Video Example v2.0</xref> on Forum Nokia.</p>
+<p>For more information on <codeph>CVideoRecorderUtility</codeph>, see <xref href="http://developer.symbian.com/main/documentation/books/books_files/quick/multimedia_recipes.pdf?strScope=website&amp;searchString=CVideoPlayerUtility" scope="external">Multimedia recipes</xref> in the Symbian Developer Network.</p>
+<p>For more information on <codeph>CVideoRecorderUtility</codeph> see the <xref href="GUID-18D7228F-A1E5-594A-B654-EF5D74CE17D2.dita">Recording Video Data</xref> tutorial
+in the Video Client library.</p>
+</section>
+</conbody></concept>
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FCL/sftools/depl/docscontent