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/*
* Copyright 2023 jacqueline <me@jacqueline.id.au>
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#include "stream_info.hpp"
#include <cstdint>
#include <optional>
#include <string>
#include <string_view>
#include <type_traits>
#include <utility>
#include <variant>
#include "result.hpp"
#include "span.hpp"
#include "types.hpp"
namespace audio {
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();
}
void InputStream::mark_consumer_finished() const {
raw_->info->is_consumer_finished = true;
if (is_producer_finished()) {
raw_->info->format = std::monostate();
}
}
bool InputStream::is_producer_finished() const {
return raw_->info->is_producer_finished;
}
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;
}
bool OutputStream::prepare(const StreamInfo::Format& new_format) {
if (std::holds_alternative<std::monostate>(raw_->info->format) ||
raw_->info->is_consumer_finished) {
raw_->info->format = new_format;
raw_->info->bytes_in_stream = 0;
raw_->info->is_producer_finished = false;
raw_->info->is_consumer_finished = false;
return true;
}
return false;
}
void OutputStream::set_duration(std::size_t seconds) {
raw_->info->duration_seconds = seconds;
}
const StreamInfo& OutputStream::info() const {
return *raw_->info;
}
cpp::span<std::byte> OutputStream::data() const {
return raw_->data.subspan(raw_->info->bytes_in_stream);
}
void OutputStream::mark_producer_finished() const {
raw_->info->is_producer_finished = true;
if (is_consumer_finished()) {
raw_->info->format = std::monostate();
}
}
bool OutputStream::is_consumer_finished() const {
return raw_->info->is_consumer_finished;
}
} // namespace audio
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