mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-09-20 05:12:18 +02:00
52 lines
1.4 KiB
C++
Vendored
52 lines
1.4 KiB
C++
Vendored
/*
|
|
* 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 OBOE_POLYPHASE_RESAMPLER_H
|
|
#define OBOE_POLYPHASE_RESAMPLER_H
|
|
|
|
#include <memory>
|
|
#include <vector>
|
|
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
#include "oboe_flowgraph_resampler_MultiChannelResampler_android.h"
|
|
|
|
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;
|
|
|
|
};
|
|
|
|
}
|
|
|
|
#endif //OBOE_POLYPHASE_RESAMPLER_H
|