1 | //audio.h: |
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2 | |
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3 | #ifndef _ROARAUDIO_AUDIO_H_ |
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4 | #define _ROARAUDIO_AUDIO_H_ |
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5 | |
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6 | #define ROAR_CODEC_PCM_LE ROAR_CODEC_PCM_S_LE |
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7 | #define ROAR_CODEC_PCM_BE ROAR_CODEC_PCM_S_BE |
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8 | #define ROAR_CODEC_PCM_PDP ROAR_CODEC_PCM_S_PDP |
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9 | |
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10 | /* |
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11 | Bits: |
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12 | 76543210 |
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13 | |||||\---\ byte- |
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14 | ||||\----/ order |
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15 | |||\-----> unsigned? |
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16 | ||\------> PCM(0) or MIDI(1)? |
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17 | |\-------> PCM/MIDI(0) or hi-level codecs(1) |
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18 | \--------> MISC(0) or RIFF/WAVE like(1) |
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19 | |
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20 | MIDI 0x08: |
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21 | 76543210 |
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22 | 000 0x08 -> MIDI File |
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23 | |
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24 | hi-level 0x10: |
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25 | 76543210 |
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26 | 0000 0x10 -> Ogg Vorbis |
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27 | 0001 0x11 -> Native FLAC |
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28 | 0010 0x12 -> Ogg Speex |
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29 | 0011 0x13 -> Reserved for CELT |
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30 | 0100 0x14 -> Ogg FLAC |
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31 | 0101 0x15 -> Ogg General |
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32 | 0110 0x16 -> Ogg CELT |
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33 | [...] |
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34 | **** 0x1a -> ROAR CELT |
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35 | **** 0x1b -> ROAR SPEEX |
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36 | |
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37 | RIFF/WAVE like 0x20: |
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38 | 76543210 |
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39 | 00000 0x20 -> RIFF/WAVE |
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40 | */ |
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41 | |
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42 | #define ROAR_CODEC_IS_SIGNED(x) (((x) & ROAR_CODEC_UNSIGNED) == 0 ? 1 : 0) |
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43 | #define ROAR_CODEC_BYTE_ORDER(x) ((x) & 0x03) |
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44 | |
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45 | #define ROAR_CODEC_UNSIGNED (1 << 2) |
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46 | |
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47 | #define ROAR_CODEC_PCM_S_LE 0x01 |
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48 | #define ROAR_CODEC_PCM_S_BE 0x02 |
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49 | #define ROAR_CODEC_PCM_S_PDP 0x03 |
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50 | |
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51 | #define ROAR_CODEC_PCM_U_LE (ROAR_CODEC_PCM_S_LE | ROAR_CODEC_UNSIGNED) |
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52 | #define ROAR_CODEC_PCM_U_BE (ROAR_CODEC_PCM_S_BE | ROAR_CODEC_UNSIGNED) |
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53 | #define ROAR_CODEC_PCM_U_PDP (ROAR_CODEC_PCM_S_PDP | ROAR_CODEC_UNSIGNED) |
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54 | |
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55 | #define ROAR_CODEC_MIDI_FILE 0x08 |
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56 | |
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57 | #define ROAR_CODEC_OGG_VORBIS 0x10 |
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58 | #define ROAR_CODEC_FLAC 0x11 /* native FLAC without Ogg container */ |
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59 | #define ROAR_CODEC_OGG_SPEEX 0x12 |
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60 | /* #define ROAR_CODEC_CELT/OGG_CELT 0x13 Reserved for CELT */ |
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61 | #define ROAR_CODEC_OGG_FLAC 0x14 |
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62 | #define ROAR_CODEC_OGG_GENERAL 0x15 |
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63 | |
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64 | #define ROAR_CODEC_ROAR_CELT 0x1a |
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65 | #define ROAR_CODEC_ROAR_SPEEX 0x1b |
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66 | |
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67 | |
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68 | #define ROAR_CODEC_RIFF_WAVE 0x20 |
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69 | |
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70 | #if BYTE_ORDER == BIG_ENDIAN |
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71 | |
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72 | #define ROAR_CODEC_DEFAULT ROAR_CODEC_PCM_BE |
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73 | #define ROAR_BE2DEF(x) (x) |
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74 | |
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75 | #elif BYTE_ORDER == LITTLE_ENDIAN |
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76 | |
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77 | #define ROAR_CODEC_DEFAULT ROAR_CODEC_PCM_LE |
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78 | #define ROAR_LE2DEF(x) (x) |
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79 | |
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80 | #else |
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81 | |
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82 | #define ROAR_CODEC_DEFAULT ROAR_CODEC_PCM_PDP |
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83 | #define ROAR_PDP2DEF(x) (x) |
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84 | |
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85 | #endif |
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86 | |
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87 | |
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88 | #define ROAR_CODEC_NATIVE ROAR_CODEC_DEFAULT |
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89 | |
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90 | #define ROAR_BITS_MAX 32 |
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91 | |
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92 | #define ROAR_BITS_DEFAULT 16 |
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93 | #define ROAR_CHANNELS_DEFAULT 2 |
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94 | #define ROAR_RATE_DEFAULT 44100 |
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95 | |
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96 | #define ROAR_MAX_CHANNELS 64 |
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97 | |
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98 | #define ROAR_SET_VOL_ALL 1 |
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99 | #define ROAR_SET_VOL_ONE 2 |
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100 | |
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101 | |
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102 | #define ROAR_SPEEX_MAX_CC 256 |
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103 | #define ROAR_SPEEX_MAGIC "RoarSpeex" |
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104 | #define ROAR_SPEEX_MAGIC_LEN 9 |
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105 | #define ROAR_SPEEX_MODE_NB 1 |
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106 | #define ROAR_SPEEX_MODE_WB 2 |
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107 | #define ROAR_SPEEX_MODE_UWB 3 |
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108 | |
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109 | #define ROAR_CELT_MAGIC "RoarCELT0" |
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110 | #define ROAR_CELT_MAGIC_LEN 9 |
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111 | |
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112 | struct roar_audio_info { |
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113 | unsigned int rate; |
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114 | unsigned int bits; |
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115 | unsigned int channels; |
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116 | unsigned int codec; |
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117 | }; |
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118 | |
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119 | struct roar_mixer_settings { |
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120 | //unsigned channels; |
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121 | roar_intm16 scale; |
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122 | roar_intm16 rpg_mul; // rpg = ReplayGain |
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123 | roar_intm16 rpg_div; |
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124 | roar_intm16 mixer[ROAR_MAX_CHANNELS]; |
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125 | }; |
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126 | |
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127 | #endif |
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128 | |
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129 | //ll |
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