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Eliminate AudioQueueStop, which is very slow, use AudioQueueStart only as required.

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This commit is contained in:
Thomas Harte 2022-07-13 15:04:58 -04:00
parent b7ad94c676
commit 10108303e7
1 changed files with 5 additions and 9 deletions
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14
OSBindings/Mac/Clock Signal/Audio/CSAudioQueue.m
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@ -80,15 +80,10 @@
if([queue->_deallocLock tryLock]) {
[queue->_queueLock lock];
OSSGuard(AudioQueueFreeBuffer(inAQ, inBuffer));
[queue->_queueLock unlock];
const int buffers = atomic_fetch_add(&queue->_enqueuedBuffers, -1) - 1;
// if(!buffers) {
// OSSGuard(AudioQueueStop(inAQ, true));
// }
[queue->_queueLock unlock];
id<CSAudioQueueDelegate> delegate = queue.delegate;
[queue->_deallocLock unlock];
@ -139,9 +134,10 @@
OSSGuard(AudioQueueEnqueueBuffer(_audioQueue, newBuffer, 0, NULL));
// 'Start' the queue. This is documented to be a no-op if the queue is already started,
// and it's better to defer starting it until at least some data is available.
if(enqueuedBuffers > 2) {
// Start the queue if it isn't started yet, and there are now some packets waiting.
UInt32 isRunning = 0, bytesReceived = sizeof(UInt32);
OSSGuard(AudioQueueGetProperty(_audioQueue, kAudioQueueProperty_IsRunning, &isRunning, &bytesReceived));
if(!isRunning && enqueuedBuffers > 2) {
OSSGuard(AudioQueueStart(_audioQueue, NULL));
}