mirror of
https://github.com/hrydgard/ppsspp.git
synced 2026-07-13 10:35:13 +02:00
Henrik Rydgård
79 lines
2.0 KiB
C++
79 lines
2.0 KiB
C++
// Copyright (c) 2015- PPSSPP Project and Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0 or later versions.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official git repository and contact information can be found at
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// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
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// Adapted from Dolphin.
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#pragma once
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#include <cstdint>
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#include <atomic>
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#include "Common/CommonTypes.h"
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struct AudioDebugStats;
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class StereoResampler {
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public:
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StereoResampler() noexcept;
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~StereoResampler();
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// Called from audio threads
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void Mix(s16 *samples, unsigned int numSamples, bool consider_framelimit, int sampleRate);
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// Called from main thread
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// This clamps the samples to 16-bit before starting to work on them.
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// Volume is a multiplier from 0.0f to 1.0f.
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void PushSamples(const s32* samples, unsigned int num_samples, float volume);
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void Clear();
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void GetAudioDebugStats(char *buf, size_t bufSize);
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void ResetStatCounters();
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private:
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void UpdateBufferSize();
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int maxBufsize_;
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int targetBufsize_;
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// This can be adjusted, for the case of non-60hz output (a few hz off).
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int inputSampleRateHz_ = 44100;
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int16_t *buffer_ = nullptr;
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std::atomic<u32> indexW_;
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std::atomic<u32> indexR_;
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float numLeftI_ = 0.0f;
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u32 frac_ = 0;
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float outputSampleRateHz_ = 0.0;
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int lastBufSize_ = 0;
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int lastPushSize_ = 0;
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u32 ratio_ = 0;
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int underrunCount_ = 0;
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int overrunCount_ = 0;
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int underrunCountTotal_ = 0;
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int overrunCountTotal_ = 0;
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int droppedSamples_ = 0;
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int64_t inputSampleCount_ = 0;
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int64_t outputSampleCount_ = 0;
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double startTime_ = 0.0;
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};
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