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Archived:Additional settings needed to run DevVideoRecord on N96 (Known Issue)

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__NOTOC__
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{{Archived|timestamp=20120321113828|user=roy.debjit| }}
__NOEDITSECTION__
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[[Category:Symbian C++]][[Category:S60 3rd Edition FP2]][[Category:Multimedia]][[Category:Video]][[Category:Known Issue]]
{{KBKI}}
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{{Abstract|To record a video on the Nokia N96, additional settings are needed as the N96 hardware is different from other Symbian devices. }}
{{ArticleMetaData
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{{ArticleMetaData <!-- v1.2 -->
|id=KIS001471
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|platform=S60 3rd Edition, FP2  
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|devices=Nokia N96
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|category=Multimedia
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|subcategory=Video
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|creationdate=October 29, 2009
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|keywords=
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|sourcecode= <!-- Link to example source code (e.g. [[Media:The Code Example ZIP.zip]]) -->
 
|sourcecode= <!-- Link to example source code (e.g. [[Media:The Code Example ZIP.zip]]) -->
 
|installfile= <!-- Link to installation file (e.g. [[Media:The Installation File.sis]]) -->
 
|installfile= <!-- Link to installation file (e.g. [[Media:The Installation File.sis]]) -->
|sdk=<!-- SDK(s) built and tested against (e.g. [http://linktosdkdownload/ Nokia Qt SDK 1.1]) -->
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|devices= Nokia N96
|devicecompatability=<!-- Compatible devices (e.g.: All* (must have GPS) ) -->
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|platform= S60 3rd Edition FP2
|capabilities=<!-- Capabilities required (e.g. Location, NetworkServices.) -->
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|devicecompatability= <!-- Compatible devices (e.g.: All* (must have GPS) ) -->
|author=[[User:Kbwiki]]
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|dependencies= <!-- Any other/external dependencies e.g.: Google Maps Api v1.0 -->
 +
|signing= <!-- Empty or one of Self-Signed, DevCert, Manufacturer -->
 +
|capabilities= <!-- Capabilities required by the article/code example (e.g. Location, NetworkServices. -->
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|creationdate= 20091029
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|author= [[User:Kbwiki]]
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<!-- The following are not in current metadata -->
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|id= KIS001471
 
}}
 
}}
 
 
==Overview==
 
To record a video on the Nokia N96, additional settings are needed as the N96 hardware is different from other S60 devices.
 
 
 
== Description ==
 
== Description ==
 
The N96 uses hardware codecs which require additional settings compared to other S60 devices.  
 
The N96 uses hardware codecs which require additional settings compared to other S60 devices.  
When the [[CS001065 - MDFDevVideo Record API|DevVideo Record example]] is run on the Nokia N96,
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When the [[Archived:MDFDevVideo Record Symbian API]] is run on the Nokia N96,
the application fails with the <tt>KErrNotReady</tt> (-18) error while calling <tt>CMMFDevVideoRecord::WritePictureL()</tt>, or with  
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the application fails with the {{Icode|KErrNotReady}} (-18) error while calling {{Icode|CMMFDevVideoRecord::WritePictureL()}}, or with  
<tt>KErrNotSupported</tt> (-5) if the camera has been set as the video source with <tt>CMMFDevVideoRecord::SetSourceCameraL()</tt>.
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{{Icode|KErrNotSupported}} (-5) if the camera has been set as the video source with {{Icode|CMMFDevVideoRecord::SetSourceCameraL()}}.
  
 
== How to reproduce ==
 
== How to reproduce ==
The [[CS001065 - MDFDevVideo Record API|DevVideo Record example]] can be used to reproduce the
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The [[Archived:MDFDevVideo Record Symbian API]] can be used to reproduce the
 
problem on the Nokia N96.
 
problem on the Nokia N96.
  
 
== Solution ==
 
== Solution ==
To ensure that MDF DevVideo encoders work on the Nokia N96, call the <tt>CMMFDevVideoRecord::SetRateControlOptions()</tt> function in  
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To ensure that MDF DevVideo encoders work on the Nokia N96, call the {{Icode|CMMFDevVideoRecord::SetRateControlOptions()}} function in  
<tt>MMMFDevVideoRecordObserver::MdvroInitializeComplete</tt> before calling <tt>CMMFDevVideoRecord::Start()</tt>.
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{{Icode|MMMFDevVideoRecordObserver::MdvroInitializeComplete}} before calling {{Icode|CMMFDevVideoRecord::Start()}}.
  
 
<code cpp>
 
<code cpp>
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   WritePic();
 
   WritePic();
 
   }
 
   }
</code><br>
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</code>
 
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[[Category:Symbian C++]][[Category:S60 3rd Edition, Feature Pack 2]][[Category:Multimedia]][[Category:Video]][[Category:Known Issue]]
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Revision as of 09:32, 15 June 2012

Archived.pngArchived: This article is archived because it is not considered relevant for third-party developers creating commercial solutions today. If you think this article is still relevant, let us know by adding the template {{ReviewForRemovalFromArchive|user=~~~~|write your reason here}}.

To record a video on the Nokia N96, additional settings are needed as the N96 hardware is different from other Symbian devices.

Article Metadata
Tested with
Devices(s): Nokia N96
Compatibility
Platform(s): S60 3rd Edition FP2
S60 3rd Edition FP2
Article
Created: User:Kbwiki (29 Oct 2009)
Last edited: hamishwillee (15 Jun 2012)

Description

The N96 uses hardware codecs which require additional settings compared to other S60 devices. When the Archived:MDFDevVideo Record Symbian API is run on the Nokia N96, the application fails with the KErrNotReady (-18) error while calling CMMFDevVideoRecord::WritePictureL(), or with KErrNotSupported (-5) if the camera has been set as the video source with CMMFDevVideoRecord::SetSourceCameraL().

How to reproduce

The Archived:MDFDevVideo Record Symbian API can be used to reproduce the problem on the Nokia N96.

Solution

To ensure that MDF DevVideo encoders work on the Nokia N96, call the CMMFDevVideoRecord::SetRateControlOptions() function in MMMFDevVideoRecordObserver::MdvroInitializeComplete before calling CMMFDevVideoRecord::Start().

 void CDevvideoExAppUi::MdvroInitializeComplete( TInt aError )
{
if ( aError != KErrNone )
{
// TODO: Handle errors
return;
}
 
// Set rate control options
TRateControlOptions rateCtrl;
rateCtrl.iControl = EBrControlNone;
rateCtrl.iPictureQuality = 0;
rateCtrl.iBitrate = iBitRate;
rateCtrl.iPictureRate = iFrameRate;
rateCtrl.iQualityTemporalTradeoff = 0;
rateCtrl.iLatencyQualityTradeoff = 0;
iDvr->SetRateControlOptions( 0, rateCtrl );
 
// Start encoding
iDvr->Start();
 
// Write first input picture
iPicNum = 0;
WritePic();
}
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