1 /*

     2 * Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  CMMAAudioStreamMetaDataControl is a concrete class for getting

    15 *                metadata from an audio media.

    16 *

    17 */

    18 

    19 

    20 //  INCLUDE FILES

    21 #include <logger.h>

    22 

    23 #include "cmmaaudiostreammetadatacontrol.h"

    24 

    25 CMMAAudioStreamMetaDataControl::CMMAAudioStreamMetaDataControl(

    26     CMetaDataUtility* aMetadaDataUtility)

    27 {

    28     LOG( EJavaMMAPI, EInfo, "CMMAAudioStreamMetaDataControl constructor called.");

    29     // this class gets the ownership of MetaDataUtility

    30     iMetaDataUtility = aMetadaDataUtility;

    31 }

    32 

    33 CMMAAudioStreamMetaDataControl::~CMMAAudioStreamMetaDataControl()

    34 {

    35     LOG( EJavaMMAPI, EInfo, "~CMMAAudioStreamMetaDataControl called.");

    36     delete iMetaDataUtility;

    37 }

    38 

    39 TInt CMMAAudioStreamMetaDataControl::KeyCountL()

    40 {

    41     TInt entries = iMetaDataUtility->MetaDataCount();

    42     LOG1( EJavaMMAPI, EInfo, "MMA:CMMAAudioStreamMetaDataControl::KeyCountL, count = %d", entries);

    43 

    44     return entries;

    45 }

    46 

    47 HBufC* CMMAAudioStreamMetaDataControl::KeyL(TInt aIndex)

    48 {

    49     LOG( EJavaMMAPI, EInfo, "MMA::CMMAAudioStreamMetaDataControl::KeyL +");

    50     HBufC* key = NULL;

    51 

    52     if (KeyCountL() > 0)

    53     {

    54         TMetaDataFieldId fieldId;

    55         const CMetaDataFieldContainer& fieldcontainer =

    56             iMetaDataUtility->MetaDataFieldsL();

    57         fieldcontainer.FieldIdAt(aIndex, fieldId);

    58         LOG1( EJavaMMAPI, EInfo, "MMA:CMMAAudioStreamMetaDataControl::KeyL, fieldId = %d", fieldId);

    59         key = GetKeyL(fieldId);

    60     }

    61 

    62     LOG( EJavaMMAPI, EInfo, "MMA::CMMAAudioStreamMetaDataControl::KeyL -");

    63     return key;

    64 }

    65 

    66 /*

    67  * Get the value of given audio metadata key. The ownership of the created value

    68  * (descriptor) is passed to the caller.

    69  */

    70 HBufC* CMMAAudioStreamMetaDataControl::KeyValueL(const TDesC& aKey)

    71 {

    72     LOG( EJavaMMAPI, EInfo, "MMA::CMMAAudioStreamMetaDataControl::KeyValueL +");

    73     HBufC* retVal = NULL;

    74 

    75     if (KeyCountL() > 0)

    76     {

    77         TBool found;

    78         TMetaDataFieldId fieldId = GetFieldId(aKey, found);

    79         if (found)

    80         {

    81             const CMetaDataFieldContainer& fieldcontainer =

    82                 iMetaDataUtility->MetaDataFieldsL();

    83             retVal = (fieldcontainer.Field(fieldId)).AllocL();

    84         }

    85     }

    86 

    87     User::LeaveIfNull(retVal);

    88     ELOG1( EJavaMMAPI, "MMA::CMMAAudioStreamMetaDataControl::KeyValueL, retVal = %S", retVal->Des().PtrZ());

    89     LOG( EJavaMMAPI, EInfo, "MMA::CMMAAudioStreamMetaDataControl::KeyValueL -");

    90     return retVal;

    91 }

    92 

    93 /*

    94 * Get key string for the given fieldId

    95 */

    96 HBufC* CMMAAudioStreamMetaDataControl::GetKeyL(TMetaDataFieldId aFieldId)

    97 {

    98     LOG( EJavaMMAPI, EInfo, "MMA::CMMAAudioStreamMetaDataControl::GetKeyL +");

    99     HBufC* keyString = NULL;

   100     TBuf<KKeyStringMaxLength> tempBuf;

   101 

   102     switch (aFieldId)

   103     {

   104     case EMetaDataSongTitle:

   105         tempBuf.Copy(KMetaDataSongTitle);

   106         keyString = tempBuf.AllocL();

   107         break;

   108     case EMetaDataArtist:

   109         tempBuf.Copy(KMetaDataArtist);

   110         keyString = tempBuf.AllocL();

   111         break;

   112     case EMetaDataAlbum:

   113         tempBuf.Copy(KMetaDataAlbum);

   114         keyString = tempBuf.AllocL();

   115         break;

   116     case EMetaDataYear:

   117         tempBuf.Copy(KMetaDataYear);

   118         keyString = tempBuf.AllocL();

   119         break;

   120     case EMetaDataAlbumTrack:

   121         tempBuf.Copy(KMetaDataAlbumTrack);

   122         keyString = tempBuf.AllocL();

   123         break;

   124     case EMetaDataGenre:

   125         tempBuf.Copy(KMetaDataGenre);

   126         keyString = tempBuf.AllocL();

   127         break;

   128     case EMetaDataComposer:

   129         tempBuf.Copy(KMetaDataComposer);

   130         keyString = tempBuf.AllocL();

   131         break;

   132     case EMetaDataCopyright:

   133         tempBuf.Copy(KMetaDataCopyright);

   134         keyString = tempBuf.AllocL();

   135         break;

   136     case EMetaDataOriginalArtist:

   137         tempBuf.Copy(KMetaDataOriginalArtist);

   138         keyString = tempBuf.AllocL();

   139         break;

   140     case EMetaDataUrl:

   141         tempBuf.Copy(KMetaDataUrl);

   142         keyString = tempBuf.AllocL();

   143         break;

   144     case EMetaDataUserUrl:

   145         tempBuf.Copy(KMetaDataUserUrl);

   146         keyString = tempBuf.AllocL();

   147         break;

   148     case EMetaDataJpeg:

   149         tempBuf.Copy(KMetaDataJpeg);

   150         keyString = tempBuf.AllocL();

   151         break;

   152     case EMetaDataVendor:

   153         tempBuf.Copy(KMetaDataVendor);

   154         keyString = tempBuf.AllocL();

   155         break;

   156     case EMetaDataRating:

   157         tempBuf.Copy(KMetaDataRating);

   158         keyString = tempBuf.AllocL();

   159         break;

   160     case EMetaDataUniqueFileIdentifier:

   161         tempBuf.Copy(KMetaDataUniqueFileIdentifier);

   162         keyString = tempBuf.AllocL();

   163         break;

   164     case EMetaDataDuration:

   165         tempBuf.Copy(KMetaDataDuration);

   166         keyString = tempBuf.AllocL();

   167         break;

   168     case EMetaDataDate:

   169         tempBuf.Copy(KMetaDataDate);

   170         keyString = tempBuf.AllocL();

   171         break;

   172     default:

   173         LOG( EJavaMMAPI, EInfo, "MMA::CMMAAudioStreamMetaDataControl::GetKeyL, default case should not occur");

   174     }

   175 

   176     LOG( EJavaMMAPI, EInfo, "MMA::CMMAAudioStreamMetaDataControl::GetKeyL -");

   177     return keyString;

   178 }

   179 

   180 /*

   181 * Get fieldId for the given key string

   182 */

   183 TMetaDataFieldId CMMAAudioStreamMetaDataControl::GetFieldId(const TDesC& aKey, TBool& aCompare)

   184 {

   185     LOG( EJavaMMAPI, EInfo, "MMA::CMMAAudioStreamMetaDataControl::GetFieldId +");

   186     TMetaDataFieldId fieldId = EUnknownMetaDataField;

   187     aCompare = true; // found

   188 

   189     if (0 == aKey.Compare(KMetaDataSongTitle()))

   190     {

   191         fieldId = EMetaDataSongTitle;

   192     }

   193     else if (0 == aKey.Compare(KMetaDataArtist()))

   194     {

   195         fieldId = EMetaDataArtist;

   196     }

   197     else if (0 == aKey.Compare(KMetaDataAlbum()))

   198     {

   199         fieldId = EMetaDataAlbum;

   200     }

   201     else if (0 == aKey.Compare(KMetaDataArtist()))

   202     {

   203         fieldId = EMetaDataArtist;

   204     }

   205     else if (0 == aKey.Compare(KMetaDataYear()))

   206     {

   207         fieldId = EMetaDataYear;

   208     }

   209     else if (0 == aKey.Compare(KMetaDataComment()))

   210     {

   211         fieldId = EMetaDataComment;

   212     }

   213     else if (0 == aKey.Compare(KMetaDataAlbumTrack()))

   214     {

   215         fieldId = EMetaDataAlbumTrack;

   216     }

   217     else if (0 == aKey.Compare(KMetaDataGenre()))

   218     {

   219         fieldId = EMetaDataGenre;

   220     }

   221     else if (0 == aKey.Compare(KMetaDataComposer()))

   222     {

   223         fieldId = EMetaDataComposer;

   224     }

   225     else if (0 == aKey.Compare(KMetaDataCopyright()))

   226     {

   227         fieldId = EMetaDataCopyright;

   228     }

   229     else if (0 == aKey.Compare(KMetaDataOriginalArtist()))

   230     {

   231         fieldId = EMetaDataOriginalArtist;

   232     }

   233     else if (0 == aKey.Compare(KMetaDataUrl()))

   234     {

   235         fieldId = EMetaDataUrl;

   236     }

   237     else if (0 == aKey.Compare(KMetaDataUserUrl()))

   238     {

   239         fieldId = EMetaDataUserUrl;

   240     }

   241     else if (0 == aKey.Compare(KMetaDataJpeg()))

   242     {

   243         fieldId = EMetaDataJpeg;

   244     }

   245     else if (0 == aKey.Compare(KMetaDataVendor()))

   246     {

   247         fieldId = EMetaDataVendor;

   248     }

   249     else if (0 == aKey.Compare(KMetaDataRating()))

   250     {

   251         fieldId = EMetaDataRating;

   252     }

   253     else if (0 == aKey.Compare(KMetaDataUniqueFileIdentifier()))

   254     {

   255         fieldId = EMetaDataUniqueFileIdentifier;

   256     }

   257     else if (0 == aKey.Compare(KMetaDataDuration()))

   258     {

   259         fieldId = EMetaDataDuration;

   260     }

   261     else if (0 == aKey.Compare(KMetaDataDate()))

   262     {

   263         fieldId = EMetaDataDate;

   264     }

   265     else

   266     {

   267         aCompare = false; // not found

   268     }

   269 

   270     LOG( EJavaMMAPI, EInfo, "MMA::CMMAAudioStreamMetaDataControl::GetFieldId -");

   271     return fieldId;

   272 }

   273 

   274 //  END OF FILE