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controll the interpolation frac by the fifo size

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degasus
2014-02-06 13:03:40 +01:00
parent d20dbbc92f
commit ca9fd64df9
2 changed files with 15 additions and 3 deletions
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10
Source/Core/AudioCommon/Mixer.h
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@ -8,9 +8,13 @@
#include "StdMutex.h"
// 16 bit Stereo
#define MAX_SAMPLES (1024 * 8)
#define MAX_SAMPLES (1024 * 2) // 64ms
#define INDEX_MASK (MAX_SAMPLES * 2 - 1)
#define RESERVED_SAMPLES (256)
#define LOW_WATERMARK 1280 // 40 ms
#define MAX_FREQ_SHIFT 0x0100 // of 0x10000
#define CONTROL_FACTOR 0.3 // in freq_shift per fifo size offset
#define CONTROL_AVG 32
class CMixer {
@ -24,6 +28,7 @@ public:
, m_logAudio(0)
, m_indexW(0)
, m_indexR(0)
, m_numLeftI(0.0f)
{
// AyuanX: The internal (Core & DSP) sample rate is fixed at 32KHz
// So when AI/DAC sample rate differs than 32KHz, we have to do re-sampling
@ -97,6 +102,7 @@ protected:
volatile u32 m_indexR;
std::mutex m_csMixing;
float m_numLeftI;
volatile float m_speed; // Current rate of the emulation (1.0 = 100% speed)
private: