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: 

    15 *

    16 */

    17 

    18 #ifndef XAVOLUMEITF_H

    19 #define XAVOLUMEITF_H

    20 

    21 #include "openmaxalwrapper.h"

    22 #include "xaglobals.h"

    23 #ifdef _GSTREAMER_BACKEND_  

    24 #include "XAAdaptationContextBase.h"

    25 #endif

    26 /** MACROS **/

    27 

    28 /* Max volume level is implementation-dependent but must be at least 0mB

    29  * now used max volume 10 mB

    30  */

    31 #define MAX_VOLUME_LEVEL 10

    32 #define MAX_VOLUME_AT_LEAST 0

    33 /* Stereo position range is -1000 to 1000 permille. -1000 permille is fully left

    34  * and 1000 permille is fully right. 0 permille is center.

    35  */

    36 #define STEREO_POSITION_RIGHT 1000

    37 #define STEREO_POSITION_LEFT -1000

    38 #define STEREO_POSITION_CENTER 0

    39 

    40 /** TYPES **/

    41 

    42 /** ENUMERATIONS **/

    43 

    44 /** STRUCTURES **/

    45 /* Definition of XAVolumeItf implementation */

    46 typedef struct XAVolumeItfImpl_

    47 {

    48     /* parent interface */

    49     struct XAVolumeItf_ itf;

    50     /* pointer to self */

    51     struct XAVolumeItfImpl_* self;

    52 

    53     XAmillibel volumeLevel;

    54     XAboolean mute;

    55     XAboolean enableStereoPos;

    56     XApermille stereoPosition;

    57 #ifdef _GSTREAMER_BACKEND_  

    58     /*Adaptation variables*/

    59     XAAdaptationBaseCtx *adapCtx;

    60 #endif

    61 } XAVolumeItfImpl;

    62 

    63 /** METHODS **/

    64 

    65 /* Base interface XAVolumeItf implementation */

    66 XAresult XAVolumeItfImpl_SetVolumeLevel(XAVolumeItf self, XAmillibel level);

    67 

    68 XAresult XAVolumeItfImpl_GetVolumeLevel(XAVolumeItf self, XAmillibel *pLevel);

    69 

    70 XAresult XAVolumeItfImpl_GetMaxVolumeLevel(XAVolumeItf self, XAmillibel *pMaxLevel);

    71 

    72 XAresult XAVolumeItfImpl_SetMute(XAVolumeItf self, XAboolean mute);

    73 

    74 XAresult XAVolumeItfImpl_GetMute(XAVolumeItf self, XAboolean *pMute);

    75 

    76 XAresult XAVolumeItfImpl_EnableStereoPosition(XAVolumeItf self, XAboolean enable);

    77 

    78 XAresult XAVolumeItfImpl_IsEnabledStereoPosition(XAVolumeItf self, XAboolean *pEnable);

    79 

    80 XAresult XAVolumeItfImpl_SetStereoPosition(XAVolumeItf self, XApermille stereoPosition);

    81 

    82 XAresult XAVolumeItfImpl_GetStereoPosition(XAVolumeItf self, XApermille *pStereoPosition);

    83 

    84 #ifdef _GSTREAMER_BACKEND_  

    85 /* XAVolumeItfImpl -specific methods */

    86 XAVolumeItfImpl* XAVolumeItfImpl_Create(XAAdaptationBaseCtx *adapCtx);

    87 #endif

    88 void XAVolumeItfImpl_Free(XAVolumeItfImpl* self);

    89 

    90 #endif /* XAVOLUMEITF_H */