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58 lines
1.3 KiB
58 lines
1.3 KiB
1 year ago
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/*
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* Copyright 2023 Daniel <ailuruxx@gmail.com>
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*
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* SPDX-License-Identifier: GPL-3.0-only
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*/
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#pragma once
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#include <cstddef>
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#include <cstdint>
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#include <memory>
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#include <optional>
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#include <string>
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#include <utility>
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#include "sample.hpp"
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#include "source_buffer.hpp"
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#include "codec.hpp"
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namespace codecs {
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static const uint16_t kWaveFormatPCM = 0x0001;
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static const uint16_t kWaveFormatIEEEFloat = 0x0003;
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static const uint16_t kWaveFormatAlaw = 0x0006;
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static const uint16_t kWaveFormatMulaw = 0x0007;
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static const uint16_t kWaveFormatExtensible = 0xFFFE;
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class WavDecoder : public ICodec {
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public:
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WavDecoder();
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~WavDecoder();
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auto OpenStream(std::shared_ptr<IStream> input)
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-> cpp::result<OutputFormat, Error> override;
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auto DecodeTo(cpp::span<sample::Sample> destination)
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-> cpp::result<OutputInfo, Error> override;
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auto SeekTo(std::size_t target_sample) -> cpp::result<void, Error> override;
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WavDecoder(const WavDecoder&) = delete;
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WavDecoder& operator=(const WavDecoder&) = delete;
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private:
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std::shared_ptr<IStream> input_;
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SourceBuffer buffer_;
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uint16_t wave_format_;
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uint16_t subformat_;
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OutputFormat output_format_;
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uint16_t bytes_per_sample_;
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uint16_t num_channels_;
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auto GetFormat() const -> uint16_t;
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};
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} // namespace codecs
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