[0] | 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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[318] | 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 | |
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| 19 | MIDI 0x08: |
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| 20 | 76543210 |
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| 21 | 000 0x08 -> MIDI File |
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| 22 | |
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| 23 | hi-level 0x10: |
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| 24 | 76543210 |
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| 25 | 0000 0x10 -> Ogg Vorbis |
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| 26 | 0001 0x11 -> Native FLAC |
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| 27 | 0010 0x12 -> Ogg Speex |
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| 28 | 0011 0x13 -> Reserved for CELT |
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| 29 | 0100 0x14 -> Ogg FLAC |
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| 30 | 0101 0x15 -> Ogg General |
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[0] | 31 | */ |
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| 32 | |
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| 33 | #define ROAR_CODEC_IS_SIGNED(x) (((x) & ROAR_CODEC_UNSIGNED) == 0 ? 1 : 0) |
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| 34 | #define ROAR_CODEC_BYTE_ORDER(x) ((x) & 0x03) |
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| 35 | |
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| 36 | #define ROAR_CODEC_UNSIGNED (1 << 2) |
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| 37 | |
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| 38 | #define ROAR_CODEC_PCM_S_LE 0x01 |
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| 39 | #define ROAR_CODEC_PCM_S_BE 0x02 |
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| 40 | #define ROAR_CODEC_PCM_S_PDP 0x03 |
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| 41 | |
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| 42 | #define ROAR_CODEC_PCM_U_LE (ROAR_CODEC_PCM_S_LE | ROAR_CODEC_UNSIGNED) |
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| 43 | #define ROAR_CODEC_PCM_U_BE (ROAR_CODEC_PCM_S_BE | ROAR_CODEC_UNSIGNED) |
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| 44 | #define ROAR_CODEC_PCM_U_PDP (ROAR_CODEC_PCM_S_PDP | ROAR_CODEC_UNSIGNED) |
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| 45 | |
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[318] | 46 | #define ROAR_CODEC_MIDI_FILE 0x08 |
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| 47 | |
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| 48 | #define ROAR_CODEC_OGG_VORBIS 0x10 |
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| 49 | #define ROAR_CODEC_FLAC 0x11 /* native FLAC without Ogg container */ |
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| 50 | #define ROAR_CODEC_OGG_SPEEX 0x12 |
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| 51 | /* #define ROAR_CODEC_CELT/OGG_CELT 0x13 Reserved for CELT */ |
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| 52 | #define ROAR_CODEC_OGG_FLAC 0x14 |
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| 53 | #define ROAR_CODEC_OGG_GENERAL 0x15 |
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| 54 | |
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[0] | 55 | #if BYTE_ORDER == BIG_ENDIAN |
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| 56 | |
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| 57 | #define ROAR_CODEC_DEFAULT ROAR_CODEC_PCM_BE |
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| 58 | #define ROAR_BE2DEF(x) (x) |
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| 59 | |
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| 60 | #elif BYTE_ORDER == LITTLE_ENDIAN |
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| 61 | |
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| 62 | #define ROAR_CODEC_DEFAULT ROAR_CODEC_PCM_LE |
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| 63 | #define ROAR_LE2DEF(x) (x) |
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| 64 | |
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| 65 | #else |
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| 66 | |
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| 67 | #define ROAR_CODEC_DEFAULT ROAR_CODEC_PCM_PDP |
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| 68 | #define ROAR_PDP2DEF(x) (x) |
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| 69 | |
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| 70 | #endif |
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| 71 | |
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| 72 | |
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| 73 | #define ROAR_CODEC_NATIVE ROAR_CODEC_DEFAULT |
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| 74 | |
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| 75 | #define ROAR_BITS_MAX 32 |
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| 76 | |
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| 77 | #define ROAR_BITS_DEFAULT 16 |
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| 78 | #define ROAR_CHANNELS_DEFAULT 2 |
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| 79 | #define ROAR_RATE_DEFAULT 44100 |
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| 80 | |
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[16] | 81 | #define ROAR_MAX_CHANNELS 64 |
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| 82 | |
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[17] | 83 | #define ROAR_SET_VOL_ALL 1 |
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| 84 | #define ROAR_SET_VOL_ONE 2 |
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| 85 | |
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[0] | 86 | struct roar_audio_info { |
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| 87 | unsigned int rate; |
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| 88 | unsigned int bits; |
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| 89 | unsigned int channels; |
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| 90 | unsigned int codec; |
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| 91 | }; |
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| 92 | |
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| 93 | struct roar_mixer_settings { |
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[17] | 94 | //unsigned channels; |
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[0] | 95 | roar_intm16 scale; |
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[319] | 96 | roar_intm16 rpg_mul; // rpg = ReplayGain |
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| 97 | roar_intm16 rpg_div; |
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[16] | 98 | roar_intm16 mixer[ROAR_MAX_CHANNELS]; |
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[0] | 99 | }; |
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| 100 | |
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| 101 | #endif |
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| 102 | |
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| 103 | //ll |
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