Move dead submodules in-tree

Signed-off-by: swurl <swurl@swurl.xyz>

externals/oboe/src/flowgraph/resampler/PolyphaseResampler.h

@@ -0,0 +1,53 @@
+/*
+ * 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.
+ */
+
+#ifndef RESAMPLER_POLYPHASE_RESAMPLER_H
+#define RESAMPLER_POLYPHASE_RESAMPLER_H
+
+#include <memory>
+#include <vector>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "MultiChannelResampler.h"
+#include "ResamplerDefinitions.h"
+
+namespace RESAMPLER_OUTER_NAMESPACE::resampler {
+/**
+ * Resampler that is optimized for a reduced ratio of sample rates.
+ * All of the coefficients for each possible phase value are pre-calculated.
+ */
+class PolyphaseResampler : public MultiChannelResampler {
+public:
+    /**
+     *
+     * @param builder containing lots of parameters
+     */
+    explicit PolyphaseResampler(const MultiChannelResampler::Builder &builder);
+
+    virtual ~PolyphaseResampler() = default;
+
+    void readFrame(float *frame) override;
+
+protected:
+
+    int32_t                mCoefficientCursor = 0;
+
+};
+
+} /* namespace RESAMPLER_OUTER_NAMESPACE::resampler */
+
+#endif //RESAMPLER_POLYPHASE_RESAMPLER_H