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Updated the constants defined for the audio block size

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branch : nfb
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Peter Courtemanche
2014-01-13 11:54:21 -08:00
parent 5b77f22f2d
commit 516115f4d5
1 changed files with 6 additions and 3 deletions
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9
KREngine/kraken/KRAudioManager.h
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@@ -44,12 +44,15 @@ const int KRENGINE_AUDIO_MAX_POOL_SIZE = 32;
const int KRENGINE_AUDIO_MAX_BUFFER_SIZE = 64*1024;
const int KRENGINE_AUDIO_BUFFERS_PER_SOURCE = 3;
const int KRENGINE_AUDIO_BLOCK_LENGTH = 1024; // Length of one block to process. Determines the latency of the audio system and sets size for FFT's used in HRTF convolution
const int KRENGINE_AUDIO_BLOCK_LOG2N = 7; // 2 ^ KRENGINE_AUDIO_BLOCK_LOG2N = KRENGINE_AUDIO_BLOCK_LENGTH
// 7 is 128, 8 -> 256, 9 -> 512, 10 -> 1024 (the size of the hardware (AUgraph) framebuffer)
// NOTE: the hrtf code use magic numbers everywhere and is hardcoded to 128 samples per frame
const int KRENGINE_AUDIO_BLOCK_LENGTH = 1 << KRENGINE_AUDIO_BLOCK_LOG2N;
// Length of one block to process. Determines the latency of the audio system and sets size for FFT's used in HRTF convolution
// the AUGraph works in 1024 sample chunks. If we put a value of less then 1024 in here then we are making mutliple calls to our render functions without any
// improvement in latency and our audio render perfomance goes down significantly
const int KRENGINE_AUDIO_BLOCK_LOG2N = 7; // 2 ^ KRENGINE_AUDIO_BLOCK_LOG2N = KRENGINE_AUDIO_BLOCK_LENGTH
const int KRENGINE_REVERB_MAX_FFT_LOG2 = 15;
const int KRENGINE_REVERB_WORKSPACE_SIZE = 1 << KRENGINE_REVERB_MAX_FFT_LOG2;