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Apple Developer Documentation
https://developer.apple.com/documentation/audiotoolbox/1502248-audioqueueallocatebuffer
The audio queue you want to allocate a buffer. inBufferByteSize. The desired capacity of the new buffer, in bytes. Appropriate capacity depends on the processing you will perform on the data as well as on the audio data format. outBuffer. On output, points to …
ios - Why did AudioQueueAllocateBuffer fail? - Stack …
https://stackoverflow.com/questions/70420477/why-did-audioqueueallocatebuffer-fail
OSStatus status = AudioQueueAllocateBuffer (_audioQueue, MIN_SIZE_PER_FRAME, &audioQueueBuffers [i]); After that, All the AudioQueue APIs will return the error -66671. The official documents define as below. kAudioQueueErr_QueueInvalidated In iOS, the audio server has exited, causing the audio queue to become invalid.
Apple Developer Documentation
https://developer.apple.com/documentation/audiotoolbox/1502779-audioqueueenqueuebuffer
Discussion. Audio queue callbacks use this function to reenqueue buffers—placing them “last in line” in a buffer queue. A playback (or output) callback reenqueues a buffer after the buffer is filled with fresh audio data (typically from a file).A recording (or input) callback reenqueues a buffer after the buffer’s contents were written (typically to a file).
iphone - AudioQueueEnqueueBuffer failing - Stack Overflow
https://stackoverflow.com/questions/6136064/audioqueueenqueuebuffer-failing
kAudioQueueErr_BufferEmpty = -66686. So, whatever you are trying to do, the buffer is empty. From a quick look at the code above, it looks to me like the SpeakHere recording code. However, you've set it up above for playback. In either case, you need to allocate the queue's buffers before starting the queue.
Streaming Audio to Multiple Listeners via iOS' Multipeer ...
https://thoughtbot.com/blog/streaming-audio-to-multiple-listeners-via-ios-multipeer-connectivity
Next, we create one audio buffer using the AudioQueueAllocateBuffer function and give it the audio queue and the size of bytes it can hold. Now, we wait for the parser to invoke its packets received callback. Then, we fill an empty buffer with the packets. There are two possible formats for the data received from the parser, VBR or CBR.
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