Categories: Symbian C++ | Code Examples | Multimedia | Audio | Video | S60 3rd Edition

This page was last modified 07:03, 17 April 2008.

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Overview

This snippet shows how to find out all audio/video play and record formats supported by the phone.

This snippet can be self-signed.

MMP file

The following libraries are required:

LIBRARY  MMFControllerFramework.lib

Header file

#include <mmf\common\mmfcontrollerpluginresolver.h>
#include <mmf\common\mmfcontroller.h>

Source file

CMMFControllerPluginSelectionParameters* pluginParameters = CMMFControllerPluginSelectionParameters::NewLC();
  CMMFFormatSelectionParameters* formatParameters = CMMFFormatSelectionParameters::NewLC();
 
  pluginParameters->SetRequiredPlayFormatSupportL(*formatParameters);
  pluginParameters->SetRequiredRecordFormatSupportL(*formatParameters);
  
  RArray<TUid> ids;
  User::LeaveIfError(ids.Append(KUidMediaTypeAudio));  
  User::LeaveIfError(ids.Append(KUidMediaTypeVideo));
  
  //EAllowOnlySuppliedMediaIds - plug-ins that support exact media ID 
  //EAllowOtherMediaIds - plug-ins that support at least the media ID 
  
  //pluginParameters->SetMediaIdsL(ids, CMMFPluginSelectionParameters::EAllowOnlySuppliedMediaIds);
  pluginParameters->SetMediaIdsL(ids, CMMFPluginSelectionParameters::EAllowOtherMediaIds);
  
  //It is also possible to set the preferred supplier of the plug-in
  //and return e.g. only those plug-ins
  //pluginParameters->->SetPreferredSupplierL(_L("SupplierName"),
  //    CMMFPluginSelectionParameters::EOnlyPreferredSupplierPluginsReturned); 
  
  RMMFControllerImplInfoArray controllers; 
  CleanupResetAndDestroyPushL(controllers);
 
  //Get all audio/video play and record controllers/formats that are supported
  pluginParameters->ListImplementationsL(controllers);
 
  /* //Print results e.g. to global CConsoleBase* console
  _LIT(KAudioFormats,"Audio/Video play and record formats detected:\n");
  _LIT(KTab, "\t");
  _LIT(KNewLine, "\n");
  console->Printf(KAudioFormats);
  for (TInt index=0; index<controllers.Count(); index++)
    {
    const RMMFFormatImplInfoArray& playFormats = controllers[index]->PlayFormats();
    const RMMFFormatImplInfoArray& recordFormats = controllers[index]->RecordFormats();
    console->Printf(controllers[index]->DisplayName());  
    console->Printf(KNewLine);
    for (TInt i=0; i<playFormats.Count(); i++)
      {
      console->Printf(KTab);
      console->Printf(playFormats[i]->DisplayName());
      console->Printf(KNewLine);
      }
    console->Printf(KNewLine);
    for (TInt j=0; j<recordFormats.Count(); j++)
      {
      console->Printf(KTab);
      console->Printf(recordFormats[j]->DisplayName());
      console->Printf(KNewLine);
      }
    }
  */
    
  CleanupStack::PopAndDestroy(3);//controllers, formatParameters, pluginParameters

Postconditions

The controllers array contains all audio/video play and record formats supported by the phone.