2#include <ossia/detail/config.hpp>
4#if __has_include(<miniaudio.h>)
5#define OSSIA_ENABLE_MINIAUDIO 1
6#define MINIAUDIO_IMPLEMENTATION
8#define MA_NO_RUNTIME_LINKING 1
10#define MA_ENABLE_ONLY_SPECIFIC_BACKENDS 1
11#define MA_ENABLE_COREAUDIO 1
12#define MA_ENABLE_ALSA 1
16#define MA_NO_RESOURCE_MANAGER 1
17#define MA_NO_NODE_GRAPH 1
18#define MA_NO_GENERATION 1
19#define MA_MAX_CHANNELS 1024
22#include <ossia/audio/audio_engine.hpp>
23#include <ossia/detail/thread.hpp>
25#include <kfr/base/conversion.hpp>
29#define OSSIA_AUDIO_MINIAUDIO 1
33struct miniaudio_context
38class miniaudio_engine final :
public audio_engine
42 std::vector<const ma_device_info*> devices;
43 bool is_duplex(
const ma_device_id& card_in,
const ma_device_id& card_out)
47 std::string_view i = card_in.coreaudio;
48 std::string_view o = card_out.coreaudio;
49 if(i.length() != o.length() || i.empty() || o.empty())
51 if(i.substr(0, i.size() - 1) == o.substr(0, o.size() - 1))
55 return memcmp(&card_in, &card_out,
sizeof(ma_device_id)) == 0;
58 std::shared_ptr<miniaudio_context> ctx, std::string name,
59 const ma_device_id& card_in,
const ma_device_id& card_out,
int inputs,
int outputs,
61 : m_ctx{std::move(ctx)}
63 ma_device_type dtype = ma_device_type_duplex;
65 dtype = ma_device_type_playback;
67 dtype = ma_device_type_capture;
69 ma_device_config config = ma_device_config_init(dtype);
71 config.sampleRate = rate;
72 config.periodSizeInFrames = bs;
76 config.playback.pDeviceID = &card_out;
77 config.playback.channels = outputs;
78 config.playback.format = ma_format_f32;
84 config.capture.pDeviceID = &card_in;
85 config.capture.channels = inputs;
86 config.capture.format = ma_format_f32;
90 config.dataCallback = callback;
92 config.performanceProfile = ma_performance_profile_low_latency;
93 config.noFixedSizedCallback =
false;
94 config.noClip =
false;
95 config.noDisableDenormals =
false;
96 config.noPreSilencedOutputBuffer =
false;
98 config.pUserData =
this;
100 this->effective_buffer_size = bs;
101 this->effective_sample_rate = rate;
102 this->effective_inputs = inputs;
103 this->effective_outputs = outputs;
105 ins_data.resize(effective_inputs * bs + 16);
106 outs_data.resize(effective_outputs * bs + 16);
107 ins.resize(effective_inputs + 2);
108 outs.resize(effective_outputs + 2);
110 if(ma_device_init(&m_ctx->context, &config, &m_stream) != MA_SUCCESS)
112 config.performanceProfile = ma_performance_profile_conservative;
113 if(ma_device_init(&m_ctx->context, &config, &m_stream) != MA_SUCCESS)
115 throw std::runtime_error(
"Cannot initialize miniaudio");
119 if(ma_device_start(&m_stream) != MA_SUCCESS)
120 throw std::runtime_error(
"Cannot start miniaudio");
123 bool running()
const override
125 return ma_device_get_state(&m_stream) == ma_device_state_started;
128 ~miniaudio_engine()
override
132 ma_device_stop(&m_stream);
133 ma_device_uninit(&m_stream);
138 callback(ma_device* pDevice,
void* output,
const void* input, ma_uint32 nframes)
141 static const thread_local auto _
143 ossia::set_thread_name(
"ossia audio 0");
144 ossia::set_thread_pinned(thread_type::Audio, 0);
148 auto& self = *
static_cast<miniaudio_engine*
>(pDevice->pUserData);
151 self.m_start = std::chrono::steady_clock::now();
153 if(self.stop_processing)
159 auto ins = self.ins.data();
160 auto ins_data = self.ins_data.data();
161 for(
int i = 0; i < self.effective_inputs; i++)
162 ins[i] = ins_data + i * nframes;
163 kfr::deinterleave(ins, (
float*)input, self.effective_inputs, nframes);
165 auto outs = self.outs.data();
166 auto outs_data = self.outs_data.data();
167 std::memset(outs_data, 0,
sizeof(
float) * self.effective_outputs * nframes);
168 for(
int i = 0; i < self.effective_outputs; i++)
169 outs[i] = outs_data + i * nframes;
171 auto now = std::chrono::steady_clock::now();
173 = std::chrono::duration_cast<std::chrono::nanoseconds>(now - *self.m_start)
177 ossia::audio_tick_state ts{(
float*
const*)ins, outs, self.effective_inputs,
178 self.effective_outputs, nframes, nsecs};
184 (
float*)output, (
const float**)outs, self.effective_outputs, nframes);
187 std::shared_ptr<miniaudio_context> m_ctx;
189 std::optional<std::chrono::steady_clock::time_point> m_start;
191 boost::container::vector<float> ins_data;
192 boost::container::vector<float*> ins;
193 boost::container::vector<float> outs_data;
194 boost::container::vector<float*> outs;