source/classes/inc/mh5audio.h

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/*******************************************************************************
 * Copyright © 2014 The DTVKit Open Software Foundation Ltd (www.dtvkit.org)
 * Copyright © 2004 Ocean Blue Software Ltd
 * Copyright © 2000 Koninklijke Philips Electronics N.V
 *
 * This file is part of a DTVKit Software Component
 * You are permitted to copy, modify or distribute this file subject to the terms
 * of the DTVKit 1.0 Licence which can be found in licence.txt or at www.dtvkit.org
 * 
 * THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND,
 * EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.
 * 
 * If you or your organisation is not a member of DTVKit then you have access
 * to this source code outside of the terms of the licence agreement
 * and you are expected to delete this and any associated files immediately.
 * Further information on DTVKit, membership and terms can be found at www.dtvkit.org
 *******************************************************************************/
#ifndef _MH5AUDIO_H
#define _MH5AUDIO_H

/*---includes for this file--------------------------------------------------*/
#include "mh5presentable.h"
#include "mh5stream.h"

/*---Constant and macro definitions for public use---------------------------*/

/*---Enumerations for public use---------------------------------------------*/

/*---Global type defs for public use-----------------------------------------*/
typedef struct
{
   /* Base class */
   MHEG5Ingredient ingredient;

   /* Exchanged attributes */
   MHEG5Int originalVolume;
   MHEG5Int componentTag;

   /* Internal attributes */
   MHEG5Int volume;

   /* Engine data */
   MHEG5Stream *parent;
} MHEG5Audio;

/*---Global variable declarations for public use-----------------------------*/

/*---Global Function prototypes for public use-------------------------------*/

void MHEG5audioInit(MHEG5Audio *audio);


void MHEG5audioFree(MHEG5Audio *audio);

/*
     Internal behaviours
 */
void MHEG5audioPrepare(MHEG5Audio *audio);
void MHEG5audioActivate(MHEG5Audio *audio);
void MHEG5audioDeactivate(MHEG5Audio *audio);
void MHEG5audioDestruct(MHEG5Audio *audio);

/*
     Actions
 */
MHEG5ErrorCode MHEG5setVolume(MHEG5Root *target, MHEG5GList *params);
MHEG5ErrorCode MHEG5getVolume(MHEG5Root *target, MHEG5GList *params);

/*
   Debug
 */
#ifdef MH5PRINTOUT
void MHEG5audioPrint(MHEG5Audio *audio, char *out);
#endif

#endif /*_MH5AUDIO_H*/