File: audio-buffer.h

package info (click to toggle)
lsp-plugins 1.2.5-1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 91,856 kB
  • sloc: cpp: 427,831; xml: 57,779; makefile: 9,961; php: 1,005; sh: 18
file content (37 lines) | stat: -rw-r--r-- 1,083 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
#pragma once

#include "private/std.h"

#ifdef __cplusplus
extern "C" {
#endif

// Sample code for reading a stereo buffer:
//
// bool isLeftConstant = (buffer->constant_mask & (1 << 0)) != 0;
// bool isRightConstant = (buffer->constant_mask & (1 << 1)) != 0;
//
// for (int i = 0; i < N; ++i) {
//    float l = data32[0][isLeftConstant ? 0 : i];
//    float r = data32[1][isRightConstant ? 0 : i];
// }
//
// Note: checking the constant mask is optional, and this implies that
// the buffer must be filled with the constant value.
// Rationale: if a buffer reader doesn't check the constant mask, then it may
// process garbage samples and in result, garbage samples may be transmitted
// to the audio interface with all the bad consequences it can have.
//
// The constant mask is a hint.
typedef struct clap_audio_buffer {
   // Either data32 or data64 pointer will be set.
   float  **data32;
   double **data64;
   uint32_t channel_count;
   uint32_t latency; // latency from/to the audio interface
   uint64_t constant_mask;
} clap_audio_buffer_t;

#ifdef __cplusplus
}
#endif