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author | James Rowe <jroweboy@gmail.com> | 2018-01-12 03:21:20 +0100 |
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committer | James Rowe <jroweboy@gmail.com> | 2018-01-13 03:11:03 +0100 |
commit | ebf9a784a9f7f4148a669dbb39e7cd50df779a14 (patch) | |
tree | d585685a1c0a34b903af1d086d62560bf56bb29f /src/audio_core/time_stretch.h | |
parent | config: Default CPU core to Unicorn. (diff) | |
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Diffstat (limited to 'src/audio_core/time_stretch.h')
-rw-r--r-- | src/audio_core/time_stretch.h | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/src/audio_core/time_stretch.h b/src/audio_core/time_stretch.h deleted file mode 100644 index c98b16705..000000000 --- a/src/audio_core/time_stretch.h +++ /dev/null @@ -1,60 +0,0 @@ -// Copyright 2016 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#pragma once - -#include <cstddef> -#include <memory> -#include <vector> -#include "common/common_types.h" - -namespace AudioCore { - -class TimeStretcher final { -public: - TimeStretcher(); - ~TimeStretcher(); - - /** - * Set sample rate for the samples that Process returns. - * @param sample_rate The sample rate. - */ - void SetOutputSampleRate(unsigned int sample_rate); - - /** - * Add samples to be processed. - * @param sample_buffer Buffer of samples in interleaved stereo PCM16 format. - * @param num_samples Number of samples. - */ - void AddSamples(const s16* sample_buffer, size_t num_samples); - - /// Flush audio remaining in internal buffers. - void Flush(); - - /// Resets internal state and clears buffers. - void Reset(); - - /** - * Does audio stretching and produces the time-stretched samples. - * Timer calculations use sample_delay to determine how much of a margin we have. - * @param sample_delay How many samples are buffered downstream of this module and haven't been - * played yet. - * @return Samples to play in interleaved stereo PCM16 format. - */ - std::vector<s16> Process(size_t sample_delay); - -private: - struct Impl; - std::unique_ptr<Impl> impl; - - /// INTERNAL: ratio = wallclock time / emulated time - double CalculateCurrentRatio(); - /// INTERNAL: If we have too many or too few samples downstream, nudge ratio in the appropriate - /// direction. - double CorrectForUnderAndOverflow(double ratio, size_t sample_delay) const; - /// INTERNAL: Gets the time-stretched samples from SoundTouch. - std::vector<s16> GetSamples(); -}; - -} // namespace AudioCore |