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<concept id="GUID-6A7F8298-F3E9-513C-8C1F-D057AC62E5E3" xml:lang="en"><title>Advanced

Settings for Focus, Drive Modes, and Bracket Modes </title><shortdesc>This document provides a detailed description of various advanced

settings of Ecam component. </shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>

<section id="GUID-B66B827F-F291-5A87-A96F-0281B5FB2722"><title>Introduction</title> <p>The

advanced settings class, <xref href="GUID-021C509B-C821-3401-B2F4-DE7F52BB16D4.dita#GUID-021C509B-C821-3401-B2F4-DE7F52BB16D4/GUID-E31AEB11-B7A0-3637-BB31-866306F78118"><apiname>CCamera::CCameraAdvancedSettings</apiname></xref>,

provides access to common camera hardware settings related to image acquisition

for still images and video. </p> <p id="GUID-79C320F6-1B2A-5A91-AEB2-356BB7C0B160"><b>Focus

mode</b> </p> <p>The high level steps to set the Camera focus mode are shown

here: </p> <ul>

<li id="GUID-8FEE544B-043C-5A2E-8D1F-29A8336F0CA9"><p>Get the information

about the supported focus modes on the camera using the <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-B122389A-2B0F-3D93-BC22-0BCEB8494929"><apiname>CCamera::CCameraAdvancedSettings::SupportedFocusModes()

const</apiname></xref> method. </p> </li>

<li id="GUID-8B66ECEA-605D-55BC-BA40-679BA9CF1A96"><p>Set a specific focus

mode on the camera using the <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-FAC15061-9DE7-3196-969E-70C0752C9253"><apiname>CCamera::CCameraAdvancedSettings::SetFocusMode(TFocusMode

aFocusMode)</apiname></xref> method. </p> </li>

<li id="GUID-80E965EA-7C42-564E-9FE6-1B04B89359C4"><p>Get the current focus

mode on the camera using the <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-D057397E-E483-3082-B1E1-B50CF8D3DD2B"><apiname>CCamera::CCameraAdvancedSettings::FocusMode()</apiname></xref> method. </p> <p>The

enumerated type <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-877A6E33-8F63-3EFC-8D8C-F77857457B80"><apiname>CCamera::CCameraAdvancedSettings::TFocusMode</apiname></xref> defines

four supported focus modes: </p> <table id="GUID-02C2468E-DBBF-5137-ACEB-C23FFAFBB468">

<tgroup cols="2"><colspec colname="col0"/><colspec colname="col1"/>

<tbody>

<row>

<entry><p> <b>Enum Value</b>  </p> </entry>

<entry><p> <b>Description</b>  </p> </entry>

</row>

<row>

<entry><p> <codeph>EFocusModeUnknown</codeph>  </p> </entry>

<entry><p>Focus mode is unknown </p> </entry>

</row>

<row>

<entry><p> <codeph>EStabilizationComplexityLow</codeph> </p> </entry>

<entry><p>Focus mode is automatic </p> </entry>

</row>

<row>

<entry><p> <codeph>EStabilizationComplexityMedium</codeph>  </p> </entry>

<entry><p>Focus is fixed </p> </entry>

</row>

<row>

<entry><p><codeph>EStabilizationComplexityHigh</codeph>  </p> </entry>

<entry><p>Focus is manually set </p> </entry>

</row>

</tbody>

</tgroup>

</table> </li>

</ul> <p>The following example shows how to change the focus mode: </p> <codeblock id="GUID-24781D9D-62F0-5A3A-8AE1-A3666AED78E2" xml:space="preserve">    // Assigns the focus mode to be set    

    CCamera::CCameraAdvancedSettings::TFocusMode focusMode = CCamera::CCameraAdvancedSettings::EFocusModeFixed;

    // Gets the supported modes

    TInt suppFocusModes = settings->SupportedFocusModes();// Checks if the focus mode is supported before setting it

    if (focusMode & suppFocusModes)

        {

           // Sets the focus mode if it is supported

        settings->SetFocusMode(focusMode);

        }</codeblock> <p id="GUID-20148E50-5531-595D-AED3-BACF2F5D69A3"><b>Focus

range</b> </p> <p>Get the supported focus range using the enumerated type <xref href="GUID-021C509B-C821-3401-B2F4-DE7F52BB16D4.dita#GUID-021C509B-C821-3401-B2F4-DE7F52BB16D4/GUID-AE5EC95A-7BDD-34F9-83DA-BFC79BFD38F2"><apiname>CCamera::CCameraAdvancedSettings:TFocusRange</apiname></xref>.

This defines eight supported focus ranges: </p> <table id="GUID-45890051-4539-57F0-A07E-17F4530415D3">

<tgroup cols="2"><colspec colname="col0"/><colspec colname="col1"/>

<tbody>

<row>

<entry><p> <b>Enum Value</b>  </p> </entry>

<entry><p> <b>Description</b>  </p> </entry>

</row>

<row>

<entry><p> <codeph>EFocusRangeAuto</codeph>  </p> </entry>

<entry><p>Automatic </p> </entry>

</row>

<row>

<entry><p> <codeph>EFocusRangeMacro</codeph>  </p> </entry>

<entry><p>Focus operates in close range </p> </entry>

</row>

<row>

<entry><p> <codeph>EFocusRangeMacro</codeph>  </p> </entry>

<entry><p>Normal operation </p> </entry>

</row>

<row>

<entry><p> <codeph>EFocusRangeMacro</codeph>  </p> </entry>

<entry><p>Extended (tele) operation </p> </entry>

</row>

<row>

<entry><p> <codeph>EFocusRangePortrait</codeph>  </p> </entry>

<entry><p>Focus at larger areas at short to medium distance </p> </entry>

</row>

<row>

<entry><p> <codeph>EFocusRangeSuperMacro</codeph>  </p> </entry>

<entry><p>Optimized macro operation, where depth of field is very shallow

and observation area changes quickly </p> </entry>

</row>

<row>

<entry><p> <codeph>EFocusRangeHyperfocal</codeph>  </p> </entry>

<entry><p>All objects at distances from half of the hyperfocal distance out

to infinity will be in focus. This gives maximum depth of field. </p> </entry>

</row>

<row>

<entry><p> <codeph>EFocusRangeInfinite</codeph>  </p> </entry>

<entry><p>Infinite range, when there is a near obstacle or better focus wanted

for far away objects. </p> </entry>

</row>

</tbody>

</tgroup>

</table> <p>The following example shows how to change the focus range: </p> <codeblock id="GUID-D65E3CD4-BD93-5D87-AB07-3596BBFFCF21" xml:space="preserve">    // Assigns the focus range to EFocusRangeHyperfocal and checks if it is supported

    CCamera::CCameraAdvancedSettings::TFocusRange focusRange = CCamera::CCameraAdvancedSettings::EFocusRangeHyperfocal;

    // Gets the supported ranges            

    TInt suppRanges = settings->SupportedFocusRanges();

    // Checks if the focus range is supported before setting it.

    if (focusRange & suppRanges) 

        {

        // Sets the focus range if it is supported

        settings->SetFocusRange(focusRange);

        }</codeblock> <p>The result of <codeph>SetFocusRange</codeph> is notified

to the client asynchronously through <codeph>MCameraObserver2::HandleEvent()</codeph> and

with UID <codeph>KUidECamEventCameraSettingFocusRange2</codeph>. </p> <p id="GUID-13C7E377-B9DB-5382-8D2C-C182D1849AEC"><b> Autofocus</b> </p><p>Autofocus

support for camera applications is controlled through the <codeph>CCameraAdvancedSettings</codeph> class. </p><fig id="GUID-BD935125-B7F9-4223-BC94-0B4A663DE13C">

<title>Implementation of autofocus</title>

<image href="GUID-57C10E91-F0CD-494E-96CE-92FB1E06CB53_d0e292667_href.png" placement="inline"/>

</fig><p>Pressing the camera shutter key on the device halfway down generates

additional key events. The key events can be used to activate autofocus if

the camera hardware supports the functionality. Shutter release (image capture)

can be triggered by pressing the key all the way down. The key presses generate

separate key events. To capture other than autofocus key events from the shutter

key, you need the <codeph>SwEvent</codeph> <xref href="GUID-6971B0A2-F79B-4E05-8AF3-BB1FC1932A22.dita">capability</xref>.</p><p>The

settings you can use in your application depend on the camera hardware on

the device. The Camera API allows you to query almost all features of the

device camera. For example, to get a list of supported advanced settings,

use the <xref href="GUID-67DF1203-B840-3C25-8EB5-3F0C8F28A4FF.dita#GUID-67DF1203-B840-3C25-8EB5-3F0C8F28A4FF/GUID-D266F5CF-75DE-3032-BE3A-359C7D021696"><apiname>CCameraAdvancedSettings::GetSupportedSettingsL(RArray&lt;TUid&gt;&amp;

aSettings) const</apiname></xref> method.</p><p>Get the supported autofocus types

using the enumerated type <xref href="GUID-021C509B-C821-3401-B2F4-DE7F52BB16D4.dita#GUID-021C509B-C821-3401-B2F4-DE7F52BB16D4/GUID-AE09FE2C-D173-38AA-9867-75B7788ACD6E"><apiname>CCamera::CCameraAdvancedSettings:TAutoFocusType</apiname></xref>.

This defines three supported focus types: </p> <table id="GUID-3535B88E-68BA-5DAF-B367-24E856B76A8B">

<tgroup cols="2"><colspec colname="col0"/><colspec colname="col1"/>

<tbody>

<row>

<entry><p> <b>Enum</b>  </p> </entry>

<entry><p> <b>Description</b>  </p> </entry>

</row>

<row>

<entry><p> <codeph>EAutoFocusTypeOff</codeph>  </p> </entry>

<entry><p>Autofocus is switched off.</p> </entry>

</row>

<row>

<entry><p> <codeph>EAutoFocusTypeSingle</codeph>  </p> </entry>

<entry><p>Operates on a single shot, consumes less power. </p> </entry>

</row>

<row>

<entry><p> <codeph>EAutoFocusTypeContinuous</codeph>  </p> </entry>

<entry><p>Continuous autofocus, more precise but consumes more power. This

is also known as AF Servo. </p> </entry>

</row>

</tbody>

</tgroup>

</table> <p>The following example shows how to change the autofocus type: </p> <codeblock id="GUID-9FE120BA-04B9-58A4-A319-B820F3274066" xml:space="preserve">    CCamera::CCameraAdvancedSettings::TAutoFocusType focusType = CCamera::CCameraAdvancedSettings::EAutoFocusTypeOff;

    // Gets the supported focus types

    TInt suppFocusTypes = settings->SupportedAutoFocusTypes();

    // Checks if the focus type is supported before setting it.

    if (focusType & suppFocusTypes)

        {

        // Sets the focus type if it is supported

        settings->SetAutoFocusType(focusType);

        }</codeblock> <p>The result of <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-668C3353-AC24-39D9-BED8-0AB1E813FD53"><apiname>CCamera::CCameraAdvancedSettings::SetAutoFocusType(TAutoFocusType

aAutoFocusType)</apiname></xref> is notified to the client asynchronously through <codeph>MCameraObserver2::HandleEvent()</codeph> and

with uid <codeph>KUidECamEventCameraSettingAutoFocusType2</codeph>. </p><p>For

more information on how to easily use the device camera with zoom and autofocus,

see <xref href="GUID-55BF8452-F9FF-5CF3-9D74-3BC7F5447551.dita">S60 Platform: Camera

Example</xref>. The Camera Wrapper provides a unified interface for various

Symbian camera APIs. The example application supports the use of both the

keypad and touch UI. The application can be self-signed, but it also provides

an option to use the dedicated camera key (Symbian signing required).</p> <p id="GUID-6A1C1EAC-092F-59FE-B0FA-74991872A42D"><b> Drive modes</b> </p> <p>Get

the supported drive modes for the camera using the enumerated type <xref href="GUID-021C509B-C821-3401-B2F4-DE7F52BB16D4.dita#GUID-021C509B-C821-3401-B2F4-DE7F52BB16D4/GUID-8A12E8C7-6930-3BFA-B543-C1984CA7AC47"><apiname>CCamera::CCameraAdvancedSettings:TDriveMode</apiname></xref> that

determines how and in what succession images are captured. This defines eight

supported drive modes for the camera with the following Enum Values: </p> <table id="GUID-4D90CBA3-7721-5785-92C2-282EE7996588">

<tgroup cols="2"><colspec colname="col0"/><colspec colname="col1"/>

<tbody>

<row>

<entry><p> <b>Enum Value</b>  </p> </entry>

<entry><p> <b>Description</b>  </p> </entry>

</row>

<row>

<entry><p> <codeph>EDriveModeAuto</codeph>  </p> </entry>

<entry><p>Automatic </p> </entry>

</row>

<row>

<entry><p> <codeph>EDriveModeSingleShot</codeph>  </p> </entry>

<entry><p>Camera takes a single image or shot </p> </entry>

</row>

<row>

<entry><p> <codeph>EDriveModeContinuous</codeph>  </p> </entry>

<entry><p>Camera continuously captures images as fast as it can until it is

stopped or it exceeds the storage space. </p> </entry>

</row>

<row>

<entry><p> <codeph>EDriveModeBracket</codeph>  </p> </entry>

<entry><p>Camera is in bracketing mode, producing individual frames. </p> </entry>

</row>

<row>

<entry><p> <codeph>EDriveModeBracketMerge</codeph>  </p> </entry>

<entry><p>Camera is in bracketing mode, but producing a single image. Use <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-2E5A785B-A468-3BD9-9F69-DEC6057F0EF2"><apiname>CCamera::CCameraAdvancedSettings::SetBracketMerge(TInt

aStartIndex, TInt aFrames)</apiname></xref> method to work in this drive mode. </p> </entry>

</row>

<row>

<entry><p> <codeph>EDriveModeTimed</codeph>  </p> </entry>

<entry><p>Camera captures a single shot after specified time period. Use <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-D730C647-E4B8-3115-AFDF-1F327CF1F978"><apiname>CCamera::CCameraAdvancedSettings::SetTimerInterval(TInt

aTimerInterval)</apiname></xref> method to work in this drive mode. </p> </entry>

</row>

<row>

<entry><p> <codeph>EDriveModeTimeLapse</codeph>  </p> </entry>

<entry><p>Camera captures a set of images with an uniform interval between

them. Use <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-B1DCD5D8-873A-34CF-B576-719A20798D79"><apiname>CCamera::CCameraAdvancedSettings::SetTimeLapse(const TTime&amp;

aStart, const TTime&amp; aEnd, const TTime&amp; aInterval)</apiname></xref> method

to work in this drive mode. </p> </entry>

</row>

<row>

<entry><p> <codeph>EDriveModeBurst</codeph>  </p> </entry>

<entry><p>Camera captures a set of images as fast as it can in batches or

bursts. Use <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-4B4E2FA2-68CA-33F0-AB76-9731D92B51D6"><apiname>CCamera::CCameraAdvancedSettings::SetBurstImages(TInt

aImages)</apiname></xref> method to set the number of burst images before capturing

the image. </p> <p> <b>Note</b>: There are chances that the actual number

of images captured may be less important due to memory or image size limitations. </p> </entry>

</row>

</tbody>

</tgroup>

</table> <p>The following example shows how to change the drive mode: </p> <codeblock id="GUID-9FB24CA2-8107-560F-80DA-4ACDE5E93049" xml:space="preserve">    CCamera::CCameraAdvancedSettings::TDriveMode driveMode = CCamera::CCameraAdvancedSettings::EDriveModeSingleShot;

    // Gets the supported drive modes

    TInt suppDriveModes = settings->SupportedDriveModes();

    // Checks if the drive mode is supported before setting it.

    if (driveMode & suppDriveModes) 

        {

        // Sets the drive mode

        settings->(driveMode);

        }</codeblock> <p>The result of <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-00B45E4F-AB03-3523-A0AB-2D766F34B021"><apiname>CCamera::CCameraAdvancedSettings::SetDriveMode(TDriveMode

aDriveMode)</apiname></xref> is notified to the client asynchronously through <codeph>MCameraObserver2::HandleEvent()</codeph> and

with uid <codeph>KUidECamEventCameraSettingDriveMode</codeph>. </p> <p id="GUID-C3CB9300-39D5-5891-8E13-2DDFEFD0D695"><b>Bracket

modes</b> </p> <p>Bracket mode is a type of drive mode, which is called using <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-38F5BF2D-2B72-33F7-803A-274DA455CAD5"><apiname>CCamera::CCameraAdvancedSettings::EDriveModeBracket</apiname></xref>. </p> <p>Bracket mode involves the camera taking a sequence of pictures,

while automatically varying a camera setting, such as exposure, over a range

of values. The enumerated type <xref href="GUID-021C509B-C821-3401-B2F4-DE7F52BB16D4.dita#GUID-021C509B-C821-3401-B2F4-DE7F52BB16D4/GUID-8AFEA294-03F8-3E1F-8745-1597B417FB87"><apiname>CCamera::CCameraAdvancedSettings:TBracketMode</apiname></xref> defines

three supported bracket modes for the camera. The setting that is varied is

called the bracket parameter, and is represented by the <xref href="GUID-021C509B-C821-3401-B2F4-DE7F52BB16D4.dita#GUID-021C509B-C821-3401-B2F4-DE7F52BB16D4/GUID-9982989C-660D-3D16-B3EB-36ED285A6C5B"><apiname>CCamera::CCameraAdvancedSettings:TBracketParameter</apiname></xref> enumeration,

while the scale of the change to the setting to make for each new picture

is called the bracket step, and is represented by the <xref href="GUID-021C509B-C821-3401-B2F4-DE7F52BB16D4.dita#GUID-021C509B-C821-3401-B2F4-DE7F52BB16D4/GUID-B37822DF-182E-3829-9E76-807CAA76F160"><apiname>CCamera::CCameraAdvancedSettings:TBracketStep</apiname></xref> enumeration.

The possible bracket modes are: </p> <table id="GUID-0A4D293B-F3F0-5FC4-A29D-D180CE4FF947">

<tgroup cols="2"><colspec colname="col0"/><colspec colname="col1"/>

<tbody>

<row>

<entry><p> <b>Enum Value</b>  </p> </entry>

<entry><p> <b>Description</b>  </p> </entry>

</row>

<row>

<entry><p> <codeph>EBracketModeOff</codeph>  </p> </entry>

<entry><p>Bracket mode is switched off. This is the default value. </p> </entry>

</row>

<row>

<entry><p> <codeph>EBracketMode3Image</codeph>  </p> </entry>

<entry><p>Bracket mode on. Three consecutive pictures are taken in order,

with the setting at under (-1), on (0), and over (+1). </p> </entry>

</row>

<row>

<entry><p> <codeph>EBracketMode5Image</codeph>  </p> </entry>

<entry><p>Bracket mode on. Five consecutive pictures are taken in order, with

the setting at under (-2), under (-1), on (0), over (+1), and over (+2). </p> </entry>

</row>

</tbody>

</tgroup>

</table> <p>The following example shows how to change the bracket mode: </p> <codeblock id="GUID-381BFE03-77E1-555B-9389-ACDC97DA7261" xml:space="preserve">    CCamera::CCameraAdvancedSettings::TBracketMode bracketMode = CCamera::CCameraAdvancedSettings::EBracketMode3Image;

    // Gets the supported bracket modes

    TInt suppBracketModes = settings->SupportedBracketModes();

    // Checks if the bracket mode is supported before setting it.

    if (bracketMode & suppBracketModes) 

        {

        settings->SetBracketMode(bracketMode);    

        }</codeblock> <p><b>Zoom Mode</b> </p> <p>The high level steps to

perform various operations in zoom mode are listed below: </p> <ul>

<li id="GUID-0F61E199-4297-505B-BC1F-D6F5FE6B073B"><p>Get the continuous zoom

types supported by the camera using <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-6B95F570-6FAC-38C0-98D8-32F2A759CAB6"><apiname>CCamera::CCameraAdvancedSettings::GetSupportedContinuousZoomTypeL(TUint&amp;

aSupportedContinuousZoomType) const</apiname></xref> method. </p> </li>

<li id="GUID-CAB0F4ED-DFFD-5C8B-B6E0-0B232CDCDD27"><p>Start continuous zoom

using <xref href="GUID-2A98C0B4-DBA4-32B9-B35D-8CFF69A0313C.dita#GUID-2A98C0B4-DBA4-32B9-B35D-8CFF69A0313C/GUID-59D734B0-15D2-39CB-A089-F468D81AAB22"><apiname>CCamera::CCameraAdvancedSettings::StartContinuousZoomL(CCamera::CCameraAdvancedSettings::TContinuousZoomParameters

aContinuousZoomParameters)()</apiname></xref> method with specified continuous zoom

type and the zoom direction. </p> </li>

<li id="GUID-03EFA212-975F-5A77-BAFE-C410C015EC18"><p>Notify the client about

the extent of continuous zoom achieved using event <codeph>KUidECamEvent2CameraSettingContinuousZoomPercentageCompletion</codeph>.

When continuous zoom reached its limit, notify the client using event <codeph>KUidECamEventCameraSettingContinuousZoomReachedLimit</codeph>. </p> </li>

<li id="GUID-710E7302-2333-51DC-820D-7F05E8CE5A36"><p>Stop continuous zoom

using <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-1EA4029D-502F-378E-8E6B-0D15D9C98031"><apiname>CCamera::CCameraAdvancedSettings::StopContinuousZoom()</apiname></xref> method. </p> </li>

</ul> <p><b>Extending Pixel Aspect Ratio</b> </p> <p>You can use the pixel

aspect ratio to provide settings for PAL, NTSC and NTSC4:3. For this, you

need to extend the enumeration of enum <xref href="GUID-021C509B-C821-3401-B2F4-DE7F52BB16D4.dita#GUID-021C509B-C821-3401-B2F4-DE7F52BB16D4/GUID-D97EB1D7-8C88-3A0C-BCB4-8EA01CF20C4E"><apiname>CCamera::CCameraAdvancedSettings:TPixelAspectRatio</apiname></xref> as

follows: </p> <table id="GUID-DD24C53C-8C60-5EAF-9B7A-05A3A34018F3">

<tgroup cols="2"><colspec colname="col0"/><colspec colname="col1"/>

<tbody>

<row>

<entry><p> <b>Enum Value</b>  </p> </entry>

<entry><p> <b>Description</b>  </p> </entry>

</row>

<row>

<entry><p><codeph>TPixelAspectRatio::EEPixelAspect16:11 </codeph></p> </entry>

<entry><p>PAL </p> </entry>

</row>

<row>

<entry><p><codeph>TPixelAspectRatio::EEPixelAspect40:33</codeph> </p> </entry>

<entry><p>NTSC </p> </entry>

</row>

<row>

<entry><p><codeph>TPixelAspectRatio::EEPixelAspect10:11</codeph> </p> </entry>

<entry><p>NTSC4:3 </p> </entry>

</row>

</tbody>

</tgroup>

</table> <p>Use <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-429847B5-ED64-39BB-9094-A966BDF1796F"><apiname>CCamera::CCameraAdvancedSettings::PixelAspectRatio()</apiname></xref> method

to get the current pixel aspect ratio. </p> <p>Use <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-F92198EA-8E1B-3C2A-A1CE-DED77112AA72"><apiname>CCamera::CCameraAdvancedSettings::SetPixelAspectRatio(TPixelAspectRatio

aPixelAspectRatio)</apiname></xref> method to set the pixel aspect ratio. Notify <codeph>MCameraObserver2</codeph> clients

with <codeph>KUidECamEventPixelAspectRatio</codeph> event. </p> </section>

<section id="GUID-A7312910-7CBC-4ADB-BDB6-4EABF809BDB8"><title>Miscellaneous</title> <p>This

section details the miscellaneous APIs used in <codeph>CCameraAdvancedSettings</codeph> class. </p> <ul>

<li id="GUID-95245D67-3B97-52CE-B0E5-40C8143BB63A"><p> <b> ISO rates </b>:

ISO indicates the sensitivity of the image sensor and is also a parameter

that influences the exposure. </p> <ul>

<li id="GUID-8376DD53-898A-5CB2-A580-681A14707207"><p>Get the set of camera

supported ISO rates using the<xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-988DB2DC-9598-3F07-8DA5-1C1005D775C8"><apiname>CCamera::CCameraAdvancedSettings::GetSupportedIsoRatesL(RArray&lt;TInt&gt;&amp;

aSupportedIsoRates) const</apiname></xref> method. The enum value <xref href="GUID-021C509B-C821-3401-B2F4-DE7F52BB16D4.dita#GUID-021C509B-C821-3401-B2F4-DE7F52BB16D4/GUID-0CFA8FBA-1EF7-31A3-BD2F-AA26DA953574"><apiname>CCamera::CCameraAdvancedSettings:TISORateType</apiname></xref> specifies

the ISO type supported by the camera. </p> </li>

<li id="GUID-5DBE8988-FE71-54C3-80DD-A72DEA495F20"><p>When camera device does

not reveal the ISO supported rates, it has to be assumed that camera will

work only on the permanently set value. If this value is not known, returns

empty array and corresponding getter or setters for this feature should not

be used in such a case. </p> </li>

<li id="GUID-1F3848E6-6763-591A-9514-091ECEBFBAD0"><p>Set the type of ISO

rate and the exposure parameter or specific value using the <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-637DA561-D767-3D28-859C-23E91D22754B"><apiname>CCamera::CCameraAdvancedSettings::SetISORateL(TISORateType

aISORateType, TInt aParam)</apiname></xref> method. </p> </li>

<li id="GUID-60604442-D930-5C55-8D2F-F23C891A6590"><p>Get the type of ISO

rate, exposure parameter and the value set using the <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-A4E38716-4298-34B6-A831-CCCB580D5277"><apiname>CCamera::CCameraAdvancedSettings::GetISORateL(TISORateType&amp;

aISORateType, TInt&amp; aParam, TInt&amp; aISORate) const</apiname></xref> method. </p> </li>

<li id="GUID-5BEE22FB-1B43-5B83-ABA9-E9BEEA17D30F"><p>Get current ISO rate

using <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-C652575D-5A50-3527-A56D-0545141A8D3C"><apiname>CCamera::CCameraAdvancedSettings::IsoRate() const</apiname></xref>. </p> </li>

</ul> </li>

<li id="GUID-963323CA-0ABE-5DDF-A0C9-6667FD98D20B"><p>Get current aperture

value using <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-4221E82B-B223-3F99-B750-1846C3751425"><apiname>CCamera::CCameraAdvancedSettings::Aperture() const</apiname></xref>.

For example, the function returns 280 for the actual aperture of F2.8. If

the value returned is negative, indicates the error case (system wide error

code) and positive represents the current aperture value. </p> </li>

<li id="GUID-B8F1D3F3-64AB-53B6-B836-36899A5806EC"><p>Get the current shutter

speed in microseconds using <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-742C86DB-2D66-3538-BEBF-A72081F579E5"><apiname>CCamera::CCameraAdvancedSettings::ShutterSpeed()

const</apiname></xref>. If the value returned is negative, indicates the error case

(system wide error code) and positive represents the current shutter speed. </p> </li>

<li id="GUID-C7ECE3F7-F3A9-5397-B745-AFA20F8D8DC4"><p>Get all supported metering

modes on this camera using <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-57CD617B-C0BD-3338-A8D1-740BA235CF09"><apiname>CCamera::CCameraAdvancedSettings::SupportedMeteringModes()

const</apiname></xref>. </p> </li>

<li id="GUID-E3E794F1-2773-5C10-8EF1-ED7538C4CFE1"><p>Get all supported drive

modes as bitfields of <codeph>TDriveMode</codeph> type using <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-8F453942-2CE0-3FD0-AA78-11B0DDA164C7"><apiname>CCamera::CCameraAdvancedSettings::SupportedDriveModes()

const</apiname></xref>. </p> </li>

<li id="GUID-D2CDDC69-DDA0-5682-852D-EB984B84F6A5"><p>Get the currently set

flash mode using <xref href="GUID-E31AEB11-B7A0-3637-BB31-866306F78118.dita#GUID-E31AEB11-B7A0-3637-BB31-866306F78118/GUID-C6CF3333-C7D8-3A8F-B6B0-097E99E387BC"><apiname>CCamera::CCameraAdvancedSettings::FlashMode()</apiname></xref>. </p> </li>

</ul> </section>

<section id="GUID-C2683A31-5432-4780-B9AF-CB952A0B8087"><title>See also</title> <p><xref href="GUID-176913BA-3877-58E2-9E12-3606EE697813.dita">Overview</xref> for the advanced

settings of Camera </p> <p>The <xref href="GUID-0FD204B8-4207-577B-AF3A-6E210D63F78E.dita">Advanced

Camera Settings</xref> tutorials. </p><p>The <xref href="GUID-55BF8452-F9FF-5CF3-9D74-3BC7F5447551.dita">S60

Platform: Camera Example</xref>.</p> </section>

</conbody></concept>