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ece6a51e5b
Add voice transcoding during phone call with two basic transforms: - sample rate downscaling by a factor of 2 with a decimator - sample rate upscaling by a factor of 2 with an interpolator (no low-pass filter) Signed-off-by: Marcin Smoczyński <smoczynski.marcin@gmail.com>
22 lines
833 B
C++
22 lines
833 B
C++
// Copyright (c) 2017-2021, Mudita Sp. z.o.o. All rights reserved.
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// For licensing, see https://github.com/mudita/MuditaOS/LICENSE.md
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#pragma once
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#include "Transform.hpp"
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namespace audio::transcode
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{
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class NullTransform : public Transform
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{
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public:
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auto transform(const Span &span, const Span &transformSpace) const -> Span override;
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auto validateInputFormat(const audio::AudioFormat &inputFormat) const noexcept -> bool override;
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auto transformFormat(const audio::AudioFormat &inputFormat) const noexcept -> audio::AudioFormat override;
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auto transformBlockSize(std::size_t inputBufferSize) const noexcept -> std::size_t override;
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auto transformBlockSizeInverted(std::size_t outputBufferSize) const noexcept -> std::size_t override;
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};
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} // namespace audio::transcode
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