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Sought to reduce chattiness.

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This commit is contained in:
Thomas Harte 2016-10-17 08:04:36 -04:00
parent 1a57e89ff0
commit c105f2acd9
2 changed files with 6 additions and 2 deletions
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3
OSBindings/Mac/Clock Signal/Audio/CSAudioQueue.h
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@ -11,7 +11,8 @@
@class CSAudioQueue; @class CSAudioQueue;
@protocol CSAudioQueueDelegate @protocol CSAudioQueueDelegate
- (void)audioQueueDidCompleteBuffer:(nonnull CSAudioQueue *)audioQueue; - (void)audioQueueDidCompleteBuffer:(nonnull CSAudioQueue *)audioQueue; // TODO: rename this to audioQueueNeedsData or something, to indicate that
// it means something more along the lines of 'may run out soon'
@end @end
/*! /*!

5
OSBindings/Mac/Clock Signal/Audio/CSAudioQueue.m
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@ -14,13 +14,15 @@
@implementation CSAudioQueue @implementation CSAudioQueue
{ {
AudioQueueRef _audioQueue; AudioQueueRef _audioQueue;
size_t _queuedSamples;
} }
#pragma mark - AudioQueue callbacks #pragma mark - AudioQueue callbacks
- (void)audioQueue:(AudioQueueRef)theAudioQueue didCallbackWithBuffer:(AudioQueueBufferRef)buffer - (void)audioQueue:(AudioQueueRef)theAudioQueue didCallbackWithBuffer:(AudioQueueBufferRef)buffer
{ {
[self.delegate audioQueueDidCompleteBuffer:self]; _queuedSamples -= (size_t)(buffer->mAudioDataByteSize / sizeof(int16_t));
if(_queuedSamples < 128) [self.delegate audioQueueDidCompleteBuffer:self];
AudioQueueFreeBuffer(_audioQueue, buffer); AudioQueueFreeBuffer(_audioQueue, buffer);
} }
@ -97,6 +99,7 @@ static void audioOutputCallback(
{ {
AudioQueueBufferRef newBuffer; AudioQueueBufferRef newBuffer;
size_t bufferBytes = lengthInSamples * sizeof(int16_t); size_t bufferBytes = lengthInSamples * sizeof(int16_t);
_queuedSamples += lengthInSamples;
AudioQueueAllocateBuffer(_audioQueue, (UInt32)bufferBytes, &newBuffer); AudioQueueAllocateBuffer(_audioQueue, (UInt32)bufferBytes, &newBuffer);
memcpy(newBuffer->mAudioData, buffer, bufferBytes); memcpy(newBuffer->mAudioData, buffer, bufferBytes);