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 | */ |
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17 | |
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18 | #define ROAR_CODEC_IS_SIGNED(x) (((x) & ROAR_CODEC_UNSIGNED) == 0 ? 1 : 0) |
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19 | #define ROAR_CODEC_BYTE_ORDER(x) ((x) & 0x03) |
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20 | |
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21 | #define ROAR_CODEC_UNSIGNED (1 << 2) |
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22 | |
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23 | #define ROAR_CODEC_PCM_S_LE 0x01 |
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24 | #define ROAR_CODEC_PCM_S_BE 0x02 |
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25 | #define ROAR_CODEC_PCM_S_PDP 0x03 |
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26 | |
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27 | #define ROAR_CODEC_PCM_U_LE (ROAR_CODEC_PCM_S_LE | ROAR_CODEC_UNSIGNED) |
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28 | #define ROAR_CODEC_PCM_U_BE (ROAR_CODEC_PCM_S_BE | ROAR_CODEC_UNSIGNED) |
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29 | #define ROAR_CODEC_PCM_U_PDP (ROAR_CODEC_PCM_S_PDP | ROAR_CODEC_UNSIGNED) |
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30 | |
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31 | #if BYTE_ORDER == BIG_ENDIAN |
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32 | |
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33 | #define ROAR_CODEC_DEFAULT ROAR_CODEC_PCM_BE |
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34 | #define ROAR_BE2DEF(x) (x) |
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35 | |
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36 | #elif BYTE_ORDER == LITTLE_ENDIAN |
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37 | |
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38 | #define ROAR_CODEC_DEFAULT ROAR_CODEC_PCM_LE |
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39 | #define ROAR_LE2DEF(x) (x) |
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40 | |
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41 | #else |
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42 | |
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43 | #define ROAR_CODEC_DEFAULT ROAR_CODEC_PCM_PDP |
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44 | #define ROAR_PDP2DEF(x) (x) |
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45 | |
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46 | #endif |
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47 | |
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48 | |
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49 | #define ROAR_CODEC_NATIVE ROAR_CODEC_DEFAULT |
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50 | |
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51 | #define ROAR_BITS_MAX 32 |
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52 | |
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53 | #define ROAR_BITS_DEFAULT 16 |
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54 | #define ROAR_CHANNELS_DEFAULT 2 |
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55 | #define ROAR_RATE_DEFAULT 44100 |
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56 | |
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57 | #define ROAR_MAX_CHANNELS 64 |
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58 | |
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59 | #define ROAR_SET_VOL_ALL 1 |
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60 | #define ROAR_SET_VOL_ONE 2 |
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61 | |
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62 | struct roar_audio_info { |
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63 | unsigned int rate; |
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64 | unsigned int bits; |
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65 | unsigned int channels; |
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66 | unsigned int codec; |
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67 | }; |
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68 | |
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69 | struct roar_mixer_settings { |
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70 | //unsigned channels; |
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71 | roar_intm16 scale; |
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72 | roar_intm16 mixer[ROAR_MAX_CHANNELS]; |
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73 | }; |
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74 | |
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75 | #endif |
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76 | |
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77 | //ll |
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