48 lines
1.1 KiB
C++
48 lines
1.1 KiB
C++
#include <psemek/audio/effect/volume.hpp>
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#include <psemek/audio/effect/volume_base.hpp>
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namespace psemek::audio
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{
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namespace
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{
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struct volume_control_impl
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: volume_control
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{
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volume_control_impl(stream_ptr stream, float gain, float smoothness)
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: base_(gain, smoothness)
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, stream_(std::move(stream))
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{}
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float gain() const override { return base_.gain(); }
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float gain(float value) override { return base_.gain(value); }
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float smoothness() const override { return base_.smoothness(); }
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float smoothness(float value) override { return base_.smoothness(value); }
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std::optional<std::size_t> length() const override
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{
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return stream_->length();
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}
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std::size_t read(float * data, std::size_t sample_count) override
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{
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auto result = stream_->read(data, sample_count);
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base_.apply(data, result);
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return result;
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}
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private:
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volume_base base_;
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stream_ptr stream_;
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};
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}
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std::shared_ptr<volume_control> volume(stream_ptr stream, float gain, float smoothness)
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{
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return std::make_shared<volume_control_impl>(std::move(stream), gain, smoothness);
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}
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}
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