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/*
* Copyright 2023 Daniel <ailuruxx@gmail.com>
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#pragma once
#include <cstddef>
#include <cstdint>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include "sample.hpp"
#include "source_buffer.hpp"
#include "codec.hpp"
namespace codecs {
static const uint16_t kWaveFormatPCM = 0x0001;
static const uint16_t kWaveFormatIEEEFloat = 0x0003;
static const uint16_t kWaveFormatAlaw = 0x0006;
static const uint16_t kWaveFormatMulaw = 0x0007;
static const uint16_t kWaveFormatExtensible = 0xFFFE;
class WavDecoder : public ICodec {
public:
WavDecoder();
~WavDecoder();
auto OpenStream(std::shared_ptr<IStream> input,uint32_t offset)
-> cpp::result<OutputFormat, Error> override;
auto DecodeTo(std::span<sample::Sample> destination)
-> cpp::result<OutputInfo, Error> override;
WavDecoder(const WavDecoder&) = delete;
WavDecoder& operator=(const WavDecoder&) = delete;
private:
std::shared_ptr<IStream> input_;
SourceBuffer buffer_;
uint16_t wave_format_;
uint16_t subformat_;
OutputFormat output_format_;
uint16_t bytes_per_sample_;
uint16_t num_channels_;
auto GetFormat() const -> uint16_t;
};
} // namespace codecs
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