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// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
#ifndef MAME_OSD_INTERFACE_AUDIO_H
#define MAME_OSD_INTERFACE_AUDIO_H
#pragma once
#include <string>
#include <array>
#include <vector>
#include <math.h>
namespace osd {
struct audio_rate_range {
uint32_t m_default_rate;
uint32_t m_min_rate;
uint32_t m_max_rate;
};
struct audio_info {
struct node_info {
std::string m_name;
uint32_t m_id;
audio_rate_range m_rate;
std::vector<std::string> m_port_names;
std::vector<std::array<double, 3>> m_port_positions;
uint32_t m_sinks;
uint32_t m_sources;
std::string name() const { return (m_sinks ? "o:" : "i:") + m_name; }
};
struct stream_info {
uint32_t m_id;
uint32_t m_node;
std::vector<float> m_volumes;
};
uint32_t m_generation;
uint32_t m_default_sink;
uint32_t m_default_source;
std::vector<node_info> m_nodes;
std::vector<stream_info> m_streams;
};
static inline float db_to_linear(float db) { return db <= -96 ? 0.0 : pow(10, db/20); }
static inline float linear_to_db(float linear) { return linear <= 1/65536.0 ? -96 : 20*log10(linear); }
}
#endif
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