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