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DPL2Decoder: Reduce scope of variable in DesignFIR

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MerryMage
2017-04-22 09:47:10 +01:00
parent d0e75bb438
commit 24027c1d4a
1 changed files with 4 additions and 4 deletions
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8
Source/Core/AudioCommon/DPL2Decoder.cpp
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@ -128,7 +128,6 @@ static float* DesignFIR(unsigned int n, float fc, float opt)
float k1 = 2 * float(M_PI); // 2*pi*fc1 float k1 = 2 * float(M_PI); // 2*pi*fc1
float k2 = 0.5f * (float)(1 - o); // Constant used if the filter has even length float k2 = 0.5f * (float)(1 - o); // Constant used if the filter has even length
float g = 0.0f; // Gain float g = 0.0f; // Gain
float t1; // Temporary variables
float fc1; // Cutoff frequencies float fc1; // Cutoff frequencies
// Sanity check // Sanity check
@ -162,9 +161,10 @@ static float* DesignFIR(unsigned int n, float fc, float opt)
// Create filter // Create filter
for (u32 i = 0; i < end; i++) for (u32 i = 0; i < end; i++)
{ {
t1 = (float)(i + 1) - k2; float t1 = static_cast<float>(i + 1) - k2;
w[end - i - 1] = w[n - end + i] = float(w[end - i - 1] * sin(k1 * t1) / (M_PI * t1)); // Sinc w[end - i - 1] = w[n - end + i] =
g += 2 * w[end - i - 1]; // Total gain in filter static_cast<float>(w[end - i - 1] * sin(k1 * t1) / (M_PI * t1)); // Sinc
g += 2 * w[end - i - 1]; // Total gain in filter
} }
// Normalize gain // Normalize gain