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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>
32 lines
856 B
C++
32 lines
856 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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#include "NullTransform.hpp"
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using ::audio::transcode::NullTransform;
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auto NullTransform::transform(const Span &span, const Span &transformSpace) const -> Span
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{
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return span;
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}
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auto NullTransform::validateInputFormat(const audio::AudioFormat &inputFormat) const noexcept -> bool
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{
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return true;
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}
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auto NullTransform::transformFormat(const audio::AudioFormat &inputFormat) const noexcept -> audio::AudioFormat
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{
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return inputFormat;
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}
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auto NullTransform::transformBlockSize(std::size_t inputBufferSize) const noexcept -> std::size_t
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{
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return inputBufferSize;
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}
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auto NullTransform::transformBlockSizeInverted(std::size_t outputBufferSize) const noexcept -> std::size_t
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{
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return outputBufferSize;
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}
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