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author | MerryMage <MerryMage@users.noreply.github.com> | 2018-09-08 17:48:13 +0200 |
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committer | MerryMage <MerryMage@users.noreply.github.com> | 2018-09-08 19:56:38 +0200 |
commit | e51bd49f87052d0706a016fab88d18ffef05b8b1 (patch) | |
tree | 76eccf3f2b428ada51c8025bc3ab7c512263854d /src/audio_core/time_stretch.h | |
parent | cubeb_sink: Hold last available value instead of writing zeros (diff) | |
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Diffstat (limited to 'src/audio_core/time_stretch.h')
-rw-r--r-- | src/audio_core/time_stretch.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/audio_core/time_stretch.h b/src/audio_core/time_stretch.h new file mode 100644 index 000000000..cdead34a2 --- /dev/null +++ b/src/audio_core/time_stretch.h @@ -0,0 +1,35 @@ +// Copyright 2018 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <array> +#include <cstddef> +#include <SoundTouch.h> +#include "common/common_types.h" + +namespace AudioCore { + +class TimeStretcher { +public: + TimeStretcher(u32 sample_rate, u32 channel_count); + + /// @param in Input sample buffer + /// @param num_in Number of input frames in `in` + /// @param out Output sample buffer + /// @param num_out Desired number of output frames in `out` + /// @returns Actual number of frames written to `out` + size_t Process(const s16* in, size_t num_in, s16* out, size_t num_out); + + void Clear(); + +private: + u32 m_sample_rate; + u32 m_channel_count; + std::array<s16, 2> m_last_stretched_sample = {}; + soundtouch::SoundTouch m_sound_touch; + double m_stretch_ratio = 1.0; +}; + +} // namespace AudioCore |