1 | //audio.h: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008 |
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5 | * |
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6 | * This file is part of RoarAudio, |
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7 | * a cross-platform sound system for both, home and professional use. |
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8 | * See README for details. |
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9 | * |
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10 | * This file is free software; you can redistribute it and/or modify |
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11 | * it under the terms of the GNU Lesser General Public License version 3 |
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12 | * as published by the Free Software Foundation. |
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13 | * |
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14 | * RoarAudio is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU Lesser General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU Lesser General Public License |
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20 | * along with this software; see the file COPYING. If not, write to |
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21 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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22 | * |
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23 | * NOTE: Even though this file is LGPLed it (may) include GPLed files |
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24 | * so the license of this file is/may therefore downgraded to GPL. |
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25 | * See HACKING for details. |
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26 | */ |
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27 | |
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28 | #ifndef _ROARAUDIO_AUDIO_H_ |
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29 | #define _ROARAUDIO_AUDIO_H_ |
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30 | |
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31 | #define ROAR_CODEC_PCM_LE ROAR_CODEC_PCM_S_LE |
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32 | #define ROAR_CODEC_PCM_BE ROAR_CODEC_PCM_S_BE |
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33 | #define ROAR_CODEC_PCM_PDP ROAR_CODEC_PCM_S_PDP |
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34 | |
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35 | /* |
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36 | Bits: |
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37 | 76543210 |
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38 | |||||\---\ byte- |
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39 | ||||\----/ order |
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40 | |||\-----> unsigned? |
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41 | ||\------> PCM(0) or MIDI(1)? |
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42 | |\-------> PCM/MIDI(0) or hi-level codecs(1) |
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43 | \--------> MISC(0) or RIFF/WAVE like(1) |
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44 | |
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45 | BB = Byte order / MSB/LSB |
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46 | |
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47 | MIDI 0x08: |
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48 | 76543210 |
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49 | 000 0x08 -> MIDI File |
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50 | |
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51 | hi-level 0x10: |
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52 | 76543210 |
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53 | 0000 0x10 -> Ogg Vorbis |
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54 | 0001 0x11 -> Native FLAC |
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55 | 0010 0x12 -> Ogg Speex |
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56 | 0011 0x13 -> Reserved for CELT |
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57 | 0100 0x14 -> Ogg FLAC |
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58 | 0101 0x15 -> Ogg General |
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59 | 0110 0x16 -> Ogg CELT |
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60 | [...] |
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61 | **** 0x1a -> ROAR CELT |
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62 | **** 0x1b -> ROAR SPEEX |
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63 | |
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64 | RIFF/WAVE like 0x20: |
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65 | 76543210 |
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66 | 0000 0x20 -> RIFF/WAVE |
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67 | |
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68 | LOG Codecs 0x30: |
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69 | 76543210 |
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70 | 00BB 0x30 -> A-Law (base) |
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71 | 01BB 0x34 -> mu-Law (base) |
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72 | */ |
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73 | |
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74 | #define ROAR_CODEC_IS_SIGNED(x) (((x) & ROAR_CODEC_UNSIGNED) == 0 ? 1 : 0) |
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75 | #define ROAR_CODEC_BYTE_ORDER(x) ((x) & 0x03) |
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76 | |
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77 | #define ROAR_CODEC_UNSIGNED (1 << 2) |
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78 | #define ROAR_CODEC_LE 0x01 |
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79 | #define ROAR_CODEC_BE 0x02 |
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80 | #define ROAR_CODEC_PDP 0x03 |
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81 | |
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82 | #define ROAR_CODEC_MSB 0x00 |
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83 | #define ROAR_CODEC_LSB 0x01 |
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84 | |
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85 | #define ROAR_CODEC_PCM 0x00 |
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86 | #define ROAR_CODEC_PCM_S_LE (ROAR_CODEC_PCM | ROAR_CODEC_LE ) |
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87 | #define ROAR_CODEC_PCM_S_BE (ROAR_CODEC_PCM | ROAR_CODEC_BE ) |
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88 | #define ROAR_CODEC_PCM_S_PDP (ROAR_CODEC_PCM | ROAR_CODEC_PDP) |
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89 | |
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90 | #define ROAR_CODEC_PCM_U_LE (ROAR_CODEC_PCM_S_LE | ROAR_CODEC_UNSIGNED) |
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91 | #define ROAR_CODEC_PCM_U_BE (ROAR_CODEC_PCM_S_BE | ROAR_CODEC_UNSIGNED) |
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92 | #define ROAR_CODEC_PCM_U_PDP (ROAR_CODEC_PCM_S_PDP | ROAR_CODEC_UNSIGNED) |
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93 | |
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94 | #define ROAR_CODEC_MIDI_FILE 0x08 |
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95 | |
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96 | #define ROAR_CODEC_OGG_VORBIS 0x10 |
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97 | #define ROAR_CODEC_FLAC 0x11 /* native FLAC without Ogg container */ |
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98 | #define ROAR_CODEC_OGG_SPEEX 0x12 |
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99 | /* #define ROAR_CODEC_CELT/OGG_CELT 0x13 Reserved for CELT */ |
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100 | #define ROAR_CODEC_OGG_FLAC 0x14 |
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101 | #define ROAR_CODEC_OGG_GENERAL 0x15 |
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102 | |
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103 | #define ROAR_CODEC_ROAR_CELT 0x1a |
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104 | #define ROAR_CODEC_ROAR_SPEEX 0x1b |
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105 | |
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106 | #define ROAR_CODEC_RAUM 0x1c |
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107 | #define ROAR_CODEC_RAUM_VORBIS 0x1d |
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108 | |
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109 | #define ROAR_CODEC_RIFF_WAVE 0x20 |
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110 | |
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111 | #define ROAR_CODEC_ALAW 0x30 |
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112 | #define ROAR_CODEC_MULAW 0x34 |
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113 | |
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114 | |
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115 | #if BYTE_ORDER == BIG_ENDIAN |
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116 | |
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117 | #define ROAR_CODEC_NATIVE_ENDIAN ROAR_CODEC_BE |
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118 | |
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119 | #define ROAR_CODEC_DEFAULT ROAR_CODEC_PCM_BE |
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120 | #define ROAR_BE2DEF(x) (x) |
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121 | |
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122 | #elif BYTE_ORDER == LITTLE_ENDIAN |
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123 | |
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124 | #define ROAR_CODEC_NATIVE_ENDIAN ROAR_CODEC_LE |
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125 | |
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126 | #define ROAR_CODEC_DEFAULT ROAR_CODEC_PCM_LE |
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127 | #define ROAR_LE2DEF(x) (x) |
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128 | |
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129 | #else |
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130 | |
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131 | #define ROAR_CODEC_NATIVE_ENDIAN ROAR_CODEC_PDP |
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132 | |
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133 | #define ROAR_CODEC_DEFAULT ROAR_CODEC_PCM_PDP |
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134 | #define ROAR_PDP2DEF(x) (x) |
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135 | |
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136 | #endif |
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137 | |
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138 | |
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139 | #define ROAR_CODEC_NATIVE ROAR_CODEC_DEFAULT |
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140 | |
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141 | #define ROAR_BITS_MAX 32 |
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142 | |
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143 | #ifndef ROAR_BITS_DEFAULT |
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144 | #define ROAR_BITS_DEFAULT 16 |
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145 | #endif |
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146 | #ifndef ROAR_CHANNELS_DEFAULT |
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147 | #define ROAR_CHANNELS_DEFAULT 2 |
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148 | #endif |
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149 | #ifndef ROAR_RATE_DEFAULT |
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150 | #define ROAR_RATE_DEFAULT 44100 |
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151 | #endif |
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152 | |
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153 | #define ROAR_MAX_CHANNELS 64 |
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154 | |
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155 | #define ROAR_SET_VOL_ALL 1 |
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156 | #define ROAR_SET_VOL_ONE 2 |
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157 | |
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158 | |
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159 | #define ROAR_SPEEX_MAX_CC 256 |
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160 | #define ROAR_SPEEX_MAGIC "RoarSpeex" |
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161 | #define ROAR_SPEEX_MAGIC_LEN 9 |
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162 | #define ROAR_SPEEX_MODE_NB 1 |
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163 | #define ROAR_SPEEX_MODE_WB 2 |
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164 | #define ROAR_SPEEX_MODE_UWB 3 |
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165 | |
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166 | #define ROAR_CELT_MAGIC "RoarCELT0" |
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167 | #define ROAR_CELT_MAGIC_LEN 9 |
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168 | |
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169 | struct roar_audio_info { |
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170 | unsigned int rate; |
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171 | unsigned int bits; |
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172 | unsigned int channels; |
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173 | unsigned int codec; |
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174 | }; |
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175 | |
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176 | struct roar_mixer_settings { |
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177 | //unsigned channels; |
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178 | roar_intm16 scale; |
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179 | roar_intm16 rpg_mul; // rpg = ReplayGain |
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180 | roar_intm16 rpg_div; |
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181 | roar_intm16 mixer[ROAR_MAX_CHANNELS]; |
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182 | }; |
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183 | |
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184 | #endif |
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185 | |
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186 | //ll |
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