libfaad2/syntax.h

   1 /*
   2 ** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
   3 ** Copyright (C) 2003-2004 M. Bakker, Ahead Software AG, http://www.nero.com
   4 **
   5 ** This program is free software; you can redistribute it and/or modify
   6 ** it under the terms of the GNU General Public License as published by
   7 ** the Free Software Foundation; either version 2 of the License, or
   8 ** (at your option) any later version.
   9 **
  10 ** This program is distributed in the hope that it will be useful,
  11 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 ** GNU General Public License for more details.
  14 **
  15 ** You should have received a copy of the GNU General Public License
  16 ** along with this program; if not, write to the Free Software
  17 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18 **
  19 ** Any non-GPL usage of this software or parts of this software is strictly
  20 ** forbidden.
  21 **
  22 ** Commercial non-GPL licensing of this software is possible.
  23 ** For more info contact Ahead Software through Mpeg4AAClicense@nero.com.
  24 **
  25 ** $Id: syntax.h,v 1.54 2004/09/04 14:56:29 menno Exp $
  26 **/
  27
  28 #ifndef __SYNTAX_H__
  29 #define __SYNTAX_H__
  30
  31 #ifdef __cplusplus
  32 extern "C" {
  33 #endif
  34
  35 #include "decoder.h"
  36 #include "bits.h"
  37
  38 #define MAIN       1
  39 #define LC         2
  40 #define SSR        3
  41 #define LTP        4
  42 #define HE_AAC     5
  43 #define LD        23
  44 #define ER_LC     17
  45 #define ER_LTP    19
  46 #define DRM_ER_LC 27 /* special object type for DRM */
  47
  48 /* header types */
  49 #define RAW        0
  50 #define ADIF       1
  51 #define ADTS       2
  52
  53 /* SBR signalling */
  54 #define NO_SBR           0
  55 #define SBR_UPSAMPLED    1
  56 #define SBR_DOWNSAMPLED  2
  57 #define NO_SBR_UPSAMPLED 3
  58
  59 /* DRM channel definitions */
  60 #define DRMCH_MONO          1
  61 #define DRMCH_STEREO        2
  62 #define DRMCH_SBR_MONO      3
  63 #define DRMCH_SBR_STEREO    4
  64 #define DRMCH_SBR_PS_STEREO 5
  65
  66
  67 /* First object type that has ER */
  68 #define ER_OBJECT_START 17
  69
  70
  71 /* Bitstream */
  72 #define LEN_SE_ID 3
  73 #define LEN_TAG   4
  74 #define LEN_BYTE  8
  75
  76 #define EXT_FIL            0
  77 #define EXT_FILL_DATA      1
  78 #define EXT_DATA_ELEMENT   2
  79 #define EXT_DYNAMIC_RANGE 11
  80 #define ANC_DATA           0
  81
  82 /* Syntax elements */
  83 #define ID_SCE 0x0
  84 #define ID_CPE 0x1
  85 #define ID_CCE 0x2
  86 #define ID_LFE 0x3
  87 #define ID_DSE 0x4
  88 #define ID_PCE 0x5
  89 #define ID_FIL 0x6
  90 #define ID_END 0x7
  91
  92 #define ONLY_LONG_SEQUENCE   0x0
  93 #define LONG_START_SEQUENCE  0x1
  94 #define EIGHT_SHORT_SEQUENCE 0x2
  95 #define LONG_STOP_SEQUENCE   0x3
  96
  97 #define ZERO_HCB       0
  98 #define FIRST_PAIR_HCB 5
  99 #define ESC_HCB        11
 100 #define QUAD_LEN       4
 101 #define PAIR_LEN       2
 102 #define NOISE_HCB      13
 103 #define INTENSITY_HCB2 14
 104 #define INTENSITY_HCB  15
 105
 106 #define INVALID_SBR_ELEMENT 255
 107
 108 int8_t GASpecificConfig(bitfile *ld, mp4AudioSpecificConfig *mp4ASC,
 109                         program_config *pce);
 110
 111 uint8_t adts_frame(adts_header *adts, bitfile *ld);
 112 void get_adif_header(adif_header *adif, bitfile *ld);
 113 void raw_data_block(NeAACDecHandle hDecoder, NeAACDecFrameInfo *hInfo,
 114                     bitfile *ld, program_config *pce, drc_info *drc);
 115 uint8_t reordered_spectral_data(NeAACDecHandle hDecoder, ic_stream *ics, bitfile *ld,
 116                                 int16_t *spectral_data);
 117 void aac_scalable_main_element(NeAACDecHandle hDecoder, NeAACDecFrameInfo *hInfo,
 118                                bitfile *ld, program_config *pce, drc_info *drc);
 119
 120
 121 #ifdef __cplusplus
 122 }
 123 #endif
 124 #endif