MloElementPce.h

/*****************************************************************
|
|    Copyright 2004-2006 Axiomatic Systems LLC
|
|    This file is part of Melo (Melo AAC Decoder).
|
|    Unless you have obtained Melo under a difference license,
|    this version of Melo is Melo|GPL.
|    Melo|GPL is free software; you can redistribute it and/or modify
|    it under the terms of the GNU General Public License as published by
|    the Free Software Foundation; either version 2, or (at your option)
|    any later version.
|
|    Melo|GPL is distributed in the hope that it will be useful,
|    but WITHOUT ANY WARRANTY; without even the implied warranty of
|    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
|    GNU General Public License for more details.
|
|    You should have received a copy of the GNU General Public License
|    along with Melo|GPL; see the file COPYING.  If not, write to the
|    Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
|    02111-1307, USA.
|
 ****************************************************************/

/*
Program Config Element

One of the Syntactic Elements contained in the raw data blocks.

Ref:
4.4.1.1, Table 4.2
4.5.2.1
*/

#ifndef _MLO_ELEMENT_PCE_H_
#define _MLO_ELEMENT_PCE_H_



/*----------------------------------------------------------------------
|       Includes
+---------------------------------------------------------------------*/



#include "MloSamplingFreq.h"
#include "MloBitStream.h"
#include "MloFrame.h"
#include "MloTypes.h"



/*----------------------------------------------------------------------
|       Types
+---------------------------------------------------------------------*/



typedef enum MLO_ElementPce_MaxNbr
{
   MLO_ELEMENT_PCE_MAX_NBR_FRONT_CHN_ELT  = 1 << 4,
   MLO_ELEMENT_PCE_MAX_NBR_SIDE_CHN_ELT   = 1 << 4,
   MLO_ELEMENT_PCE_MAX_NBR_BACK_CHN_ELT   = 1 << 4,
   MLO_ELEMENT_PCE_MAX_NBR_LFE_CHN_ELT    = 1 << 2,
   MLO_ELEMENT_PCE_MAX_NBR_ASSOC_DATA_ELT = 1 << 3,
   MLO_ELEMENT_PCE_MAX_NBR_VALID_CC_ELT   = 1 << 4
}  MLO_ElementPce_MaxNbr;



typedef struct MLO_ElementPce_TaggedElt
{
   MLO_Boolean    is_cpe_flag;
   int            tag;
}  MLO_ElementPce_TaggedElt;



typedef struct MLO_ElementPce_Cce
{
   MLO_Boolean    is_ind_sw_flag;
   int            tag;
}  MLO_ElementPce_Cce;



/* 4.4.1.1, Table 4.2 */
typedef struct MLO_ElementPce
{
   int            element_instance_tag;
   MLO_AacProfile object_type;
   MLO_SamplingFreq_Index
                  sampling_frequency_index;
   int            num_front_channel_elements;
   int            num_side_channel_elements;
   int            num_back_channel_elements;
   int            num_lfe_channel_elements;
   int            num_assoc_data_elements;
   int            num_valid_cc_elements;
   MLO_Boolean    mono_mixdown_present;
   int            mono_mixdown_element_number;
   MLO_Boolean    stereo_mixdown_present;
   int            stereo_mixdown_element_number;
   MLO_Boolean    matrix_mixdown_idx_present;
   int            matrix_mixdown_idx ;
   MLO_Boolean    pseudo_surround_enable;
   MLO_ElementPce_TaggedElt
                  front_element_arr [MLO_ELEMENT_PCE_MAX_NBR_FRONT_CHN_ELT];
   MLO_ElementPce_TaggedElt
                  side_element_arr [MLO_ELEMENT_PCE_MAX_NBR_SIDE_CHN_ELT];
   MLO_ElementPce_TaggedElt
                  back_element_arr [MLO_ELEMENT_PCE_MAX_NBR_BACK_CHN_ELT];
   int            lfe_element_tag_arr [MLO_ELEMENT_PCE_MAX_NBR_LFE_CHN_ELT];
   int            assoc_data_element_tag_arr [MLO_ELEMENT_PCE_MAX_NBR_ASSOC_DATA_ELT];
   MLO_ElementPce_Cce
                  cc_element_arr [MLO_ELEMENT_PCE_MAX_NBR_VALID_CC_ELT];
}  MLO_ElementPce;



/*----------------------------------------------------------------------
|       Function prototypes
+---------------------------------------------------------------------*/



#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */



MLO_Result  MLO_ElementPce_Decode (MLO_ElementPce *pce_ptr, MLO_BitStream *bit_ptr);



#ifdef __cplusplus
}
#endif /* __cplusplus */



#endif /* _MLO_ELEMENT_PCE_H_ */