ppsspp/Core/HW/StereoResampler.h
Henrik Rydgård 349b73acec
Move the resampler usage to a common file, AudioCommon. (#17176)
* Move the resampler usage to a common file, AudioCommon.

Ports that don't want to use the resampler can now simply exclude that
file and provide their own implementation. Next up, libretro will be
converted to do it that way.

* Android.mk typo

* libretro makefile fix

* libretro buildfix

* libretro: try a different approach for the temporary solution

* duh

* double duh
2023-03-24 17:19:57 +01:00

76 lines
1.9 KiB
C++

// Copyright (c) 2015- PPSSPP Project and Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0 or later versions.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official git repository and contact information can be found at
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
// Adapted from Dolphin.
#pragma once
#include <cstdint>
#include <atomic>
#include "Common/CommonTypes.h"
struct AudioDebugStats;
class StereoResampler {
public:
StereoResampler();
~StereoResampler();
// Called from audio threads
unsigned int Mix(short* samples, unsigned int numSamples, bool consider_framelimit, int sampleRate);
// Called from main thread
// This clamps the samples to 16-bit before starting to work on them.
void PushSamples(const s32* samples, unsigned int num_samples);
void Clear();
void GetAudioDebugStats(char *buf, size_t bufSize);
void ResetStatCounters();
private:
void UpdateBufferSize();
int m_maxBufsize;
int m_targetBufsize;
unsigned int m_input_sample_rate = 44100;
int16_t *m_buffer;
std::atomic<u32> m_indexW;
std::atomic<u32> m_indexR;
float m_numLeftI = 0.0f;
u32 m_frac = 0;
float output_sample_rate_ = 0.0;
int lastBufSize_ = 0;
int lastPushSize_ = 0;
u32 ratio_ = 0;
int underrunCount_ = 0;
int overrunCount_ = 0;
int underrunCountTotal_ = 0;
int overrunCountTotal_ = 0;
int droppedSamples_ = 0;
int64_t inputSampleCount_ = 0;
int64_t outputSampleCount_ = 0;
double startTime_ = 0.0;
};