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1 /* |
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2 * Copyright (c) 2010 Ixonos Plc. |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - Initial contribution |
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11 * |
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12 * Contributors: |
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13 * Ixonos Plc |
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14 * |
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15 * Description: |
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16 * |
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17 */ |
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18 |
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19 |
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20 /************************************************************************** |
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21 aacdef.h - Interface to AAC core structures. |
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22 |
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23 Author(s): Juha Ojanpera |
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24 Copyright (c) 2000-2004 by Nokia Research Center, Speech and Audio Systems. |
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25 *************************************************************************/ |
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26 |
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27 #ifndef AACDEF_H_ |
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28 #define AACDEF_H_ |
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29 |
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30 /*-- Project Headers. --*/ |
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31 #include "chandefs.h" |
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32 #include "defines.h" |
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33 #include "dec_huf.h" |
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34 |
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35 /* |
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36 Purpose: Structure interface for window parameters. |
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37 Explanation: - */ |
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38 class CWindowInfo : public CBase |
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39 { |
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40 public: |
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41 |
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42 static CWindowInfo* NewL(); |
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43 ~CWindowInfo(); |
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44 uint8 wnd; |
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45 uint8 max_sfb; |
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46 uint8 hasmask; |
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47 uint8 predBands; |
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48 PredType predType; |
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49 int16 prstflag[2]; |
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50 Wnd_Shape wshape[2]; |
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51 uint8* group;//[NSHORT]; |
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52 uint8* mask;//[MAXBANDS]; |
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53 int16* sfac;//[MAXBANDS]; |
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54 uint8* cb_map;//[MAXBANDS]; |
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55 int16* lpflag;//[MAXBANDS]; |
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56 |
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57 private: |
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58 |
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59 void ConstructL(); |
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60 CWindowInfo(); |
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61 |
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62 }; |
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63 |
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64 /* |
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65 Purpose: Information about the audio channel. |
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66 Explanation: - */ |
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67 class TCh_Info |
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68 { |
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69 public: |
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70 |
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71 int16 present; /* Channel present. */ |
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72 int16 num_bins; /* # of active (i.e., nonzero) bins for this ch. */ |
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73 int16 tag; /* Element tag. */ |
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74 int16 cpe; /* 0 if single channel, 1 if channel pair. */ |
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75 int16 paired_ch; /* Index of paired channel in cpe. */ |
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76 int16 widx; /* Window element index for this channel. */ |
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77 |
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78 BOOL is_present; /* Intensity stereo is used. */ |
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79 BOOL pns_present; /* PNS is used. */ |
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80 BOOL tns_present; /* TNS is used. */ |
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81 BOOL parseCh; /* TRUE if channel only parsed not decoded. */ |
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82 |
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83 int16 ncch; /* Number of coupling channels for this ch. */ |
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84 int16 cch[CChansD]; /* Coupling channel idx. */ |
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85 int16 cc_dom[CChansD]; /* Coupling channel domain. */ |
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86 int16 cc_ind[CChansD]; /* Independently switched coupling channel flag. */ |
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87 CInfo *info; /* Block parameters for this channel. */ |
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88 |
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89 /*-- Huffman tables. --*/ |
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90 Huffman_DecInfo **huf; |
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91 Huffman_DecSfInfo *sf_huf; |
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92 |
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93 }; |
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94 |
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95 |
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96 /* |
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97 Purpose: Channel mapping information. |
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98 Explanation: - */ |
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99 class CMC_Info : public CBase |
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100 { |
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101 public: |
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102 |
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103 static CMC_Info* NewL(); |
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104 ~CMC_Info(); |
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105 /* |
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106 * Max number of supported main and coulping channels. |
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107 */ |
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108 int16 maxnCh; |
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109 int16 maxnCCh; |
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110 |
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111 /* |
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112 * Audio channels (LFE, SCE, and CPE) up to 'maxnCh' will be decoded. |
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113 * All the other channels will be only parsed. 'dummyCh' is therefore |
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114 * the channel index into 'ch_info' structure which is used for the unused |
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115 * audio channels. 'dummyCCh' identifies the channel index for unused CCE |
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116 * channels. |
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117 */ |
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118 int16 dummyCh; |
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119 int16 dummyCCh; |
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120 |
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121 /* |
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122 * This will be set to 1 when the channel limit has been reached. |
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123 */ |
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124 int16 dummyAlways; |
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125 |
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126 /* |
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127 * These members identify how many audio channels (LFE, SCE, CPE, CCE) |
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128 * were found from the bitstream on a frame-by-frame basis. |
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129 */ |
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130 int16 nch; |
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131 int16 ncch; |
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132 |
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133 int16 cc_tag[1 << LEN_TAG]; /* Tags of valid CCE's. */ |
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134 int16 cc_ind[1 << LEN_TAG]; /* Independently switched CCE's. */ |
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135 uint8 profile; |
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136 uint8 sfreq_idx; |
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137 |
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138 int16 cur_prog; |
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139 int16 default_config; |
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140 |
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141 CSfb_Info* sfbInfo; |
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142 |
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143 TCh_Info ch_info[ChansD]; |
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144 |
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145 private: |
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146 |
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147 void ConstructL(); |
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148 CMC_Info(); |
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149 |
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150 |
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151 }; |
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152 |
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153 /* |
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154 Purpose: Pulse noiseless coding. |
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155 Explanation: - */ |
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156 typedef struct PulseInfoStr |
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157 { |
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158 int16 number_pulse; |
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159 int16 pulse_start_sfb; |
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160 int16 pulse_data_present; |
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161 int16 pulse_amp[NUM_PULSE_LINES]; |
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162 int16 pulse_offset[NUM_PULSE_LINES]; |
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163 int16 pulse_position[NUM_PULSE_LINES]; |
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164 |
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165 } PulseInfo; |
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166 |
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167 #endif /*-- AACDEF_H_ --*/ |