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annotate DPF-Prymula-audioplugins/dpf/distrho/src/clap/audio-buffer.h @ 3:84e66ea83026

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DPF-Prymula-audioplugins-0.231015-2
author prymula <prymula76@outlook.com>
date Mon, 16 Oct 2023 21:53:34 +0200
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1 #pragma once
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2
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3 #include "private/std.h"
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4
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5 #ifdef __cplusplus
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6 extern "C" {
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7 #endif
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8
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9 // Sample code for reading a stereo buffer:
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10 //
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11 // bool isLeftConstant = (buffer->constant_mask & (1 << 0)) != 0;
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12 // bool isRightConstant = (buffer->constant_mask & (1 << 1)) != 0;
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13 //
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14 // for (int i = 0; i < N; ++i) {
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15 // float l = data32[0][isLeftConstant ? 0 : i];
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16 // float r = data32[1][isRightConstant ? 0 : i];
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17 // }
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18 //
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19 // Note: checking the constant mask is optional, and this implies that
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20 // the buffer must be filled with the constant value.
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21 // Rationale: if a buffer reader doesn't check the constant mask, then it may
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22 // process garbage samples and in result, garbage samples may be transmitted
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23 // to the audio interface with all the bad consequences it can have.
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24 //
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25 // The constant mask is a hint.
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26 typedef struct clap_audio_buffer {
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27 // Either data32 or data64 pointer will be set.
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28 float **data32;
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29 double **data64;
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30 uint32_t channel_count;
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31 uint32_t latency; // latency from/to the audio interface
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32 uint64_t constant_mask;
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33 } clap_audio_buffer_t;
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34
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35 #ifdef __cplusplus
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36 }
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37 #endif