av/media/libstagefright/codecs/mp3dec/src/pv_mp3_huffman.h

/* ------------------------------------------------------------------
 * Copyright (C) 1998-2009 PacketVideo
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 * -------------------------------------------------------------------
 */
/*
------------------------------------------------------------------------------

   PacketVideo Corp.
   MP3 Decoder Library

   Filename: pv_mp3_huffman.h

   Date: 09/21/2007

------------------------------------------------------------------------------
 REVISION HISTORY

 Description:
------------------------------------------------------------------------------
 INCLUDE DESCRIPTION


------------------------------------------------------------------------------
 REFERENCES

 [1] ISO MPEG Audio Subgroup Software Simulation Group (1996)
     ISO 13818-3 MPEG-2 Audio Decoder - Lower Sampling Frequency Extension

------------------------------------------------------------------------------
*/
/*----------------------------------------------------------------------------
; CONTINUE ONLY IF NOT ALREADY DEFINED
----------------------------------------------------------------------------*/

#ifndef PV_MP3_HUFFMAN_H
#define PV_MP3_HUFFMAN_H


/*----------------------------------------------------------------------------
; INCLUDES
----------------------------------------------------------------------------*/

#include "pvmp3_audio_type_defs.h"
#include "s_mp3bits.h"
#include "s_tmp3dec_file.h"

/*----------------------------------------------------------------------------
; MACROS
; Define module specific macros here
----------------------------------------------------------------------------*/

/*----------------------------------------------------------------------------
; EXTERNAL VARIABLES REFERENCES
----------------------------------------------------------------------------*/

/*----------------------------------------------------------------------------
; DEFINES AND SIMPLE TYPEDEF'S
----------------------------------------------------------------------------*/


/*----------------------------------------------------------------------------
; GLOBAL FUNCTION DEFINITIONS
; Function Prototype declaration
----------------------------------------------------------------------------*/

#ifdef __cplusplus
extern "C"
{
#endif

    int32 pvmp3_huffman_parsing(int32 is[SUBBANDS_NUMBER*FILTERBANK_BANDS],
    granuleInfo *grInfo,
    tmp3dec_file   *pVars,
    int32 part2_start,
    mp3Header *info);


    void pvmp3_huffman_quad_decoding(struct huffcodetab *h,
                                     int32 *is,
                                     tmp3Bits *pMainData);

    void pvmp3_huffman_pair_decoding(struct huffcodetab *h,
                                     int32 *is,
                                     tmp3Bits *pMainData);


    void pvmp3_huffman_pair_decoding_linbits(struct huffcodetab *h,
            int32 *is,
            tmp3Bits *pMainData);

#ifdef __cplusplus
}
#endif

/*----------------------------------------------------------------------------
; END
----------------------------------------------------------------------------*/

#endif