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Eliminate AudioQueueBufferMaxLength.

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This commit is contained in:
Thomas Harte 2022-07-13 15:24:43 -04:00
parent 75f3f1a77f
commit dcb68c16fe
1 changed files with 5 additions and 5 deletions
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10
OSBindings/Mac/Clock Signal/Audio/CSAudioQueue.m
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@ -10,8 +10,6 @@
@import AudioToolbox; @import AudioToolbox;
#include <stdatomic.h> #include <stdatomic.h>
#define AudioQueueBufferMaxLength 8192
#define OSSGuard(x) { \ #define OSSGuard(x) { \
const OSStatus status = x; \ const OSStatus status = x; \
assert(!status); \ assert(!status); \
@ -45,9 +43,11 @@
_samplingRate = samplingRate; _samplingRate = samplingRate;
// Determine preferred buffer size as being the first power of two less than // Determine preferred buffer size as being the first power of two
_preferredBufferSize = AudioQueueBufferMaxLength; // not less than 1/100th of a second.
while((Float64)_preferredBufferSize*100.0 > samplingRate) _preferredBufferSize >>= 1; _preferredBufferSize = 1;
const NSUInteger oneHundredthOfRate = (NSUInteger)(samplingRate / 100.0);
while(_preferredBufferSize < oneHundredthOfRate) _preferredBufferSize <<= 1;
// Describe a 16bit stream of the requested sampling rate. // Describe a 16bit stream of the requested sampling rate.
AudioStreamBasicDescription outputDescription; AudioStreamBasicDescription outputDescription;