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/*
* Copyright 2023 jacqueline <me@jacqueline.id.au>
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#include "stream_info.hpp"
#include <sys/_stdint.h>
#include <cstdint>
#include <optional>
#include <string>
#include <string_view>
#include <type_traits>
#include <utility>
#include <variant>
#include "esp_heap_caps.h"
#include "result.hpp"
#include "span.hpp"
#include "types.hpp"
namespace audio {
RawStream::RawStream(std::size_t size)
: info_(),
buffer_size_(size),
buffer_(reinterpret_cast<std::byte*>(
heap_caps_malloc(size, MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT))) {
assert(buffer_ != NULL);
}
RawStream::RawStream(std::size_t size, uint32_t caps)
: info_(),
buffer_size_(size),
buffer_(reinterpret_cast<std::byte*>(heap_caps_malloc(size, caps))) {
assert(buffer_ != NULL);
}
RawStream::~RawStream() {
heap_caps_free(buffer_);
}
auto RawStream::data() -> cpp::span<std::byte> {
return {buffer_, buffer_size_};
}
void InputStream::consume(std::size_t bytes) const {
assert(raw_->info().bytes_in_stream() >= bytes);
auto new_data =
raw_->data().subspan(bytes, raw_->info().bytes_in_stream() - bytes);
std::move(new_data.begin(), new_data.end(), raw_->data().begin());
raw_->info().bytes_in_stream() = new_data.size_bytes();
}
const StreamInfo& InputStream::info() const {
return raw_->info();
}
cpp::span<const std::byte> InputStream::data() const {
return raw_->data().first(raw_->info().bytes_in_stream());
}
void OutputStream::add(std::size_t bytes) const {
assert(raw_->info().bytes_in_stream() + bytes <= raw_->data().size_bytes());
raw_->info().bytes_in_stream() += bytes;
}
void OutputStream::prepare(const StreamInfo::Format& new_format,
std::optional<uint32_t> length) {
raw_->info().set_format(new_format);
raw_->info().bytes_in_stream() = 0;
raw_->info().total_length_bytes() = length;
}
const StreamInfo& OutputStream::info() const {
return raw_->info();
}
cpp::span<std::byte> OutputStream::data() const {
return raw_->data().subspan(raw_->info().bytes_in_stream());
}
} // namespace audio
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