1 files changed, 0 insertions, 72 deletions
diff --git a/externals/oboe/src/flowgraph/resampler/SincResampler.cpp b/externals/oboe/src/flowgraph/resampler/SincResampler.cpp
deleted file mode 100644
index 919f328a2a..0000000000
--- a/externals/oboe/src/flowgraph/resampler/SincResampler.cpp
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * Copyright 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <algorithm>   // Do NOT delete. Needed for LLVM. See #1746
-#include <cassert>
-#include <math.h>
-#include "SincResampler.h"
-
-using namespace RESAMPLER_OUTER_NAMESPACE::resampler;
-
-SincResampler::SincResampler(const MultiChannelResampler::Builder &builder)
-        : MultiChannelResampler(builder)
-        , mSingleFrame2(builder.getChannelCount()) {
-    assert((getNumTaps() % 4) == 0); // Required for loop unrolling.
-    mNumRows = kMaxCoefficients / getNumTaps(); // includes guard row
-    const int32_t numRowsNoGuard = mNumRows - 1;
-    mPhaseScaler = (double) numRowsNoGuard / mDenominator;
-    const double phaseIncrement = 1.0 / numRowsNoGuard;
-    generateCoefficients(builder.getInputRate(),
-                         builder.getOutputRate(),
-                         mNumRows,
-                         phaseIncrement,
-                         builder.getNormalizedCutoff());
-}
-
-void SincResampler::readFrame(float *frame) {
-    // Clear accumulator for mixing.
-    std::fill(mSingleFrame.begin(), mSingleFrame.end(), 0.0);
-    std::fill(mSingleFrame2.begin(), mSingleFrame2.end(), 0.0);
-
-    // Determine indices into coefficients table.
-    const double tablePhase = getIntegerPhase() * mPhaseScaler;
-    const int indexLow = static_cast<int>(floor(tablePhase));
-    const int indexHigh = indexLow + 1; // OK because using a guard row.
-    assert (indexHigh < mNumRows);
-    float *coefficientsLow = &mCoefficients[static_cast<size_t>(indexLow)
-                                            * static_cast<size_t>(getNumTaps())];
-    float *coefficientsHigh = &mCoefficients[static_cast<size_t>(indexHigh)
-                                             * static_cast<size_t>(getNumTaps())];
-
-    float *xFrame = &mX[static_cast<size_t>(mCursor) * static_cast<size_t>(getChannelCount())];
-    for (int tap = 0; tap < mNumTaps; tap++) {
-        const float coefficientLow = *coefficientsLow++;
-        const float coefficientHigh = *coefficientsHigh++;
-        for (int channel = 0; channel < getChannelCount(); channel++) {
-            const float sample = *xFrame++;
-            mSingleFrame[channel] += sample * coefficientLow;
-            mSingleFrame2[channel] += sample * coefficientHigh;
-        }
-    }
-
-    // Interpolate and copy to output.
-    const float fraction = tablePhase - indexLow;
-    for (int channel = 0; channel < getChannelCount(); channel++) {
-        const float low = mSingleFrame[channel];
-        const float high = mSingleFrame2[channel];
-        frame[channel] = low + (fraction * (high - low));
-    }
-}