1 /*

     2  * Copyright (c) 2009 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: Telephony Multimedia Service

    15  *

    16  */

    17 

    18 // INCLUDE FILES

    19 #include "tmsutility.h"

    20 #include "tmsdtmftoneplayer.h"

    21 

    22 // CONSTANTS

    23 const gint KDTMFMaxBufSize = 64;

    24 const gint KMaxVolumeLevel = 10;

    25 

    26 _LIT(KPhoneTone_Asterisk, "*+w");

    27 

    28 //from voip

    29 const guint KDTMFToneLengthOn = 250000;

    30 const guint KDTMFToneLengthOff = 50000;

    31 const guint KDTMFToneLengthPause = 2500000;

    32 

    33 using namespace TMS;

    34 

    35 // -----------------------------------------------------------------------------

    36 // TMSAudioDtmfTonePlayer::NewL

    37 // Two-phased constructor.

    38 // -----------------------------------------------------------------------------

    39 //

    40 TMSAudioDtmfTonePlayer* TMSAudioDtmfTonePlayer::NewL(

    41         TMSDTMFTonePlayerObserver& obsrvr, guint audioPreference,

    42         guint audioPriority)

    43     {

    44     TMSAudioDtmfTonePlayer* self = new (ELeave) TMSAudioDtmfTonePlayer(obsrvr,

    45             audioPreference, audioPriority);

    46 

    47     CleanupStack::PushL(self);

    48     self->ConstructL();

    49     CleanupStack::Pop(self);

    50     return self;

    51     }

    52 

    53 //Destructor

    54 TMSAudioDtmfTonePlayer::~TMSAudioDtmfTonePlayer()

    55     {

    56     TRACE_PRN_FN_ENT;

    57     Cancel();

    58     delete iDTMFPlayer;

    59     TRACE_PRN_FN_EXT;

    60     }

    61 

    62 // -----------------------------------------------------------------------------

    63 // TMSAudioDtmfTonePlayer::TMSAudioDtmfTonePlayer

    64 // C++ default constructor can NOT contain any code, that

    65 // might leave.

    66 // -----------------------------------------------------------------------------

    67 //

    68 TMSAudioDtmfTonePlayer::TMSAudioDtmfTonePlayer(

    69         TMSDTMFTonePlayerObserver& obsrvr, guint audioPreference,

    70         guint audioPriority) :

    71     iObserver(obsrvr),

    72     iPref(audioPreference),

    73     iPrior(audioPriority)

    74     {

    75     TRACE_PRN_FN_ENT;

    76     TRACE_PRN_FN_EXT;

    77     }

    78 

    79 // -----------------------------------------------------------------------------

    80 // TMSAudioDtmfTonePlayer::ConstructL

    81 // Symbian 2nd phase constructor can leave.

    82 // -----------------------------------------------------------------------------

    83 //

    84 void TMSAudioDtmfTonePlayer::ConstructL()

    85     {

    86     TRACE_PRN_FN_ENT;

    87 

    88     TMMFPrioritySettings dtmfClickPlayerPrioritySettings;

    89     iDTMFPlayer = CMMFDevSound::NewL();

    90     iDTMFPlayer->InitializeL(*this, EMMFStateTonePlaying);

    91 

    92     TRACE_PRN_FN_EXT;

    93     }

    94 

    95 // -----------------------------------------------------------------------------

    96 // TMSAudioDtmfTonePlayer::SetVolume

    97 // Sets the volume level that is used when the dtmf tone is played.

    98 // -----------------------------------------------------------------------------

    99 //

   100 void TMSAudioDtmfTonePlayer::SetVolume(gint volume)

   101     {

   102     TRACE_PRN_FN_ENT;

   103     gint vol = ConvertVolumeLevel(volume);

   104 

   105     if (vol != iVolume)

   106         {

   107         iVolume = vol;

   108         iDTMFPlayer->SetVolume(iVolume);

   109         }

   110     TRACE_PRN_FN_EXT;

   111     }

   112 

   113 // -----------------------------------------------------------------------------

   114 // TMSAudioDtmfTonePlayer::PlayDtmfTone

   115 // Searches the given DTMF tone from iToneArray and calls PlayCurrentTone

   116 // member function.

   117 // -----------------------------------------------------------------------------

   118 //

   119 void TMSAudioDtmfTonePlayer::PlayDtmfTone(TDes& tone)

   120     {

   121     TRACE_PRN_FN_ENT;

   122     Cancel();

   123 

   124     // DTMF signaling.

   125     if (iDTMFPlayer)

   126         {

   127         TBuf<KDTMFMaxBufSize> key;

   128         key.Append(tone);

   129         TRAP_IGNORE(iDTMFPlayer->PlayDTMFStringL(tone));

   130         }

   131     TRACE_PRN_FN_EXT;

   132     }

   133 

   134 // -----------------------------------------------------------------------------

   135 // TMSAudioDtmfTonePlayer::Cancel

   136 // Cancels the currently playing tone.

   137 // -----------------------------------------------------------------------------

   138 //

   139 void TMSAudioDtmfTonePlayer::Cancel()

   140     {

   141     TRACE_PRN_FN_ENT;

   142     iDTMFPlayer->Stop();

   143     TRACE_PRN_FN_EXT;

   144     }

   145 

   146 // -----------------------------------------------------------------------------

   147 // TMSAudioDtmfTonePlayer::Normalize

   148 // Lowers case for chars and if its '*','+', or 'w' sets it to asterisk

   149 // char ('*').

   150 // -----------------------------------------------------------------------------

   151 //

   152 void TMSAudioDtmfTonePlayer::Normalize(TChar& tone)

   153     {

   154     TRACE_PRN_FN_ENT;

   155     tone.LowerCase();

   156     TPtrC ast(KPhoneTone_Asterisk);

   157 

   158     if (ast.Locate(tone) != KErrNotFound)

   159         {

   160         tone = ast[0];

   161         }

   162     TRACE_PRN_FN_EXT;

   163     }

   164 

   165 // -----------------------------------------------------------------------------

   166 // TMSAudioDtmfTonePlayer::InitializeComplete

   167 // -----------------------------------------------------------------------------

   168 //

   169 void TMSAudioDtmfTonePlayer::InitializeComplete(TInt aError)

   170     {

   171     TRACE_PRN_FN_ENT;

   172 

   173     if (aError == KErrNone)

   174         {

   175         TMMFPrioritySettings dtmfPlayerSettings;

   176         dtmfPlayerSettings.iPref = iPref;

   177         dtmfPlayerSettings.iPriority = iPrior;

   178         dtmfPlayerSettings.iState = EMMFStateTonePlaying;

   179         iDTMFPlayer->SetPrioritySettings(dtmfPlayerSettings);

   180 

   181         TTimeIntervalMicroSeconds32 length(KDTMFToneLengthOn);

   182         TTimeIntervalMicroSeconds32 pause(KDTMFToneLengthOff);

   183         TTimeIntervalMicroSeconds32 zero(KDTMFToneLengthPause);

   184         iDTMFPlayer->SetDTMFLengths(length, pause, zero);

   185         iDTMFPlayer->SetVolume(iDTMFPlayer->MaxVolume());

   186         }

   187 

   188     iObserver.DTMFInitCompleted(aError);

   189     TRACE_PRN_IF_ERR(aError);

   190     TRACE_PRN_FN_EXT;

   191     }

   192 

   193 // -----------------------------------------------------------------------------

   194 // TMSAudioDtmfTonePlayer::ToneFinished

   195 // -----------------------------------------------------------------------------

   196 //

   197 void TMSAudioDtmfTonePlayer::ToneFinished(TInt aError)

   198     {

   199     TRACE_PRN_FN_ENT;

   200     iObserver.DTMFToneFinished(aError);

   201     TRACE_PRN_IF_ERR(aError);

   202     TRACE_PRN_FN_EXT;

   203     }

   204 

   205 // -----------------------------------------------------------------------------

   206 // TMSAudioDtmfTonePlayer::ConvertVolumeLevel

   207 // -----------------------------------------------------------------------------

   208 //

   209 gint TMSAudioDtmfTonePlayer::ConvertVolumeLevel(gint volume)

   210     {

   211     TRACE_PRN_FN_ENT;

   212     gint result = iDTMFPlayer->MaxVolume() * volume / KMaxVolumeLevel;

   213     TRACE_PRN_FN_EXT;

   214     return result;

   215     }

   216