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/*
* Copyright 2023 jacqueline <me@jacqueline.id.au>
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#include "native.hpp"
#include <cstdint>
#include <cstring>
#include <optional>
#include "esp_heap_caps.h"
#include "mad.h"
#include "codec.hpp"
#include "esp_log.h"
#include "result.hpp"
#include "sample.hpp"
#include "types.hpp"
namespace codecs {
NativeDecoder::NativeDecoder() : input_() {}
auto NativeDecoder::OpenStream(std::shared_ptr<IStream> input, uint32_t offset)
-> cpp::result<OutputFormat, ICodec::Error> {
input_ = input;
return OutputFormat{
.num_channels = 1,
.sample_rate_hz = 48000,
.total_samples = {},
// sample rate * channels * bits per sample / bits per kb
.bitrate_kbps = 48000 * 1 * 16 / 1024,
};
}
auto NativeDecoder::DecodeTo(std::span<sample::Sample> output)
-> cpp::result<OutputInfo, Error> {
size_t bytes = input_->Read({
reinterpret_cast<std::byte*>(output.data()),
output.size_bytes(),
});
return OutputInfo{
.samples_written = bytes / sizeof(sample::Sample),
.is_stream_finished = false,
};
}
} // namespace codecs
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