diff options
Diffstat (limited to 'audio/sysvad/ToneGenerator.cpp')
| -rw-r--r-- | audio/sysvad/ToneGenerator.cpp | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/audio/sysvad/ToneGenerator.cpp b/audio/sysvad/ToneGenerator.cpp index 2a01e49a..6ef2a39a 100644 --- a/audio/sysvad/ToneGenerator.cpp +++ b/audio/sysvad/ToneGenerator.cpp @@ -15,7 +15,6 @@ Abstract: #include <sysvad.h> #include "ToneGenerator.h" -const double TONE_AMPLITUDE = 0.5; // Scalar value, should be between 0.0 - 1.0 const double TWO_PI = M_PI * 2; extern DWORD g_DisableToneGenerator; @@ -89,7 +88,7 @@ VOID ToneGenerator::InitNewFrame _In_ DWORD FrameSize ) { - double sinValue = TONE_AMPLITUDE * sin( m_Theta ); + double sinValue = m_ToneDCOffset + m_ToneAmplitude * sin( m_Theta ); if (FrameSize != (DWORD)m_ChannelCount * m_BitsPerSample/8) { @@ -222,6 +221,9 @@ ZeroBuffer: NTSTATUS ToneGenerator::Init ( _In_ DWORD ToneFrequency, + _In_ double ToneAmplitude, + _In_ double ToneDCOffset, + _In_ double ToneInitialPhase, _In_ PWAVEFORMATEXTENSIBLE WfExt ) { @@ -248,8 +250,11 @@ NTSTATUS ToneGenerator::Init // // Basic init. // - RtlZeroMemory(&m_Theta, sizeof(m_Theta)); + m_Theta = ToneInitialPhase; m_Frequency = ToneFrequency; + m_ToneAmplitude = ToneAmplitude; + m_ToneDCOffset = ToneDCOffset; + m_ChannelCount = WfExt->Format.nChannels; // # channels. m_BitsPerSample = WfExt->Format.wBitsPerSample; // bits per sample. m_SamplesPerSecond = WfExt->Format.nSamplesPerSec; // samples per sec. |