6 #define MAX_ERROR_MESSAGE_LENGTH 512
15 char errmsg[MAX_ERROR_MESSAGE_LENGTH];
18 const char *rtaudio_version() { return RTAUDIO_VERSION; }
20 extern "C" const RtAudio::Api rtaudio_compiled_apis[];
21 const rtaudio_api_t *rtaudio_compiled_api() {
22 return (rtaudio_api_t *) &rtaudio_compiled_apis[0];
25 extern "C" const char* rtaudio_api_names[][2];
26 const char *rtaudio_api_name(rtaudio_api_t api) {
27 if (api < 0 || api >= RTAUDIO_API_NUM)
29 return rtaudio_api_names[api][0];
32 const char *rtaudio_api_display_name(rtaudio_api_t api)
34 if (api < 0 || api >= RTAUDIO_API_NUM)
36 return rtaudio_api_names[api][1];
39 rtaudio_api_t rtaudio_compiled_api_by_name(const char *name) {
40 RtAudio::Api api = RtAudio::UNSPECIFIED;
42 api = RtAudio::getCompiledApiByName(name);
44 return (rtaudio_api_t)api;
47 const char *rtaudio_error(rtaudio_t audio) {
48 if (audio->has_error) {
54 rtaudio_t rtaudio_create(rtaudio_api_t api) {
55 rtaudio_t audio = new struct rtaudio();
57 audio->audio = new RtAudio((RtAudio::Api)api);
58 } catch (RtAudioError &err) {
60 strncpy(audio->errmsg, err.what(), sizeof(audio->errmsg) - 1);
65 void rtaudio_destroy(rtaudio_t audio) { delete audio->audio; }
67 rtaudio_api_t rtaudio_current_api(rtaudio_t audio) {
68 return (rtaudio_api_t)audio->audio->getCurrentApi();
71 int rtaudio_device_count(rtaudio_t audio) {
72 return audio->audio->getDeviceCount();
75 rtaudio_device_info_t rtaudio_get_device_info(rtaudio_t audio, int i) {
76 rtaudio_device_info_t result;
77 std::memset(&result, 0, sizeof(result));
80 RtAudio::DeviceInfo info = audio->audio->getDeviceInfo(i);
81 result.probed = info.probed;
82 result.output_channels = info.outputChannels;
83 result.input_channels = info.inputChannels;
84 result.duplex_channels = info.duplexChannels;
85 result.is_default_output = info.isDefaultOutput;
86 result.is_default_input = info.isDefaultInput;
87 result.native_formats = info.nativeFormats;
88 result.preferred_sample_rate = info.preferredSampleRate;
89 strncpy(result.name, info.name.c_str(), sizeof(result.name) - 1);
90 for (unsigned int j = 0; j < info.sampleRates.size(); j++) {
91 if (j < sizeof(result.sample_rates) / sizeof(result.sample_rates[0])) {
92 result.sample_rates[j] = info.sampleRates[j];
95 } catch (RtAudioError &err) {
97 strncpy(audio->errmsg, err.what(), sizeof(audio->errmsg) - 1);
102 unsigned int rtaudio_get_default_output_device(rtaudio_t audio) {
103 return audio->audio->getDefaultOutputDevice();
106 unsigned int rtaudio_get_default_input_device(rtaudio_t audio) {
107 return audio->audio->getDefaultInputDevice();
110 static int proxy_cb_func(void *out, void *in, unsigned int nframes, double time,
111 RtAudioStreamStatus status, void *userdata) {
112 rtaudio_t audio = (rtaudio_t)userdata;
113 return audio->cb(out, in, nframes, time, (rtaudio_stream_status_t)status,
117 int rtaudio_open_stream(rtaudio_t audio,
118 rtaudio_stream_parameters_t *output_params,
119 rtaudio_stream_parameters_t *input_params,
120 rtaudio_format_t format, unsigned int sample_rate,
121 unsigned int *buffer_frames, rtaudio_cb_t cb,
122 void *userdata, rtaudio_stream_options_t *options,
123 rtaudio_error_cb_t /*errcb*/) {
125 audio->has_error = 0;
126 RtAudio::StreamParameters *in = NULL;
127 RtAudio::StreamParameters *out = NULL;
128 RtAudio::StreamOptions *opts = NULL;
130 RtAudio::StreamParameters inparams;
131 RtAudio::StreamParameters outparams;
132 RtAudio::StreamOptions stream_opts;
134 if (input_params != NULL) {
135 inparams.deviceId = input_params->device_id;
136 inparams.nChannels = input_params->num_channels;
137 inparams.firstChannel = input_params->first_channel;
140 if (output_params != NULL) {
141 outparams.deviceId = output_params->device_id;
142 outparams.nChannels = output_params->num_channels;
143 outparams.firstChannel = output_params->first_channel;
147 if (options != NULL) {
148 stream_opts.flags = (RtAudioStreamFlags)options->flags;
149 stream_opts.numberOfBuffers = options->num_buffers;
150 stream_opts.priority = options->priority;
151 if (strlen(options->name) > 0) {
152 stream_opts.streamName = std::string(options->name);
157 audio->userdata = userdata;
158 audio->audio->openStream(out, in, (RtAudioFormat)format, sample_rate,
159 buffer_frames, proxy_cb_func, (void *)audio, opts,
162 } catch (RtAudioError &err) {
163 audio->has_error = 1;
164 strncpy(audio->errmsg, err.what(), sizeof(audio->errmsg) - 1);
169 void rtaudio_close_stream(rtaudio_t audio) { audio->audio->closeStream(); }
171 int rtaudio_start_stream(rtaudio_t audio) {
173 audio->has_error = 0;
174 audio->audio->startStream();
175 } catch (RtAudioError &err) {
176 audio->has_error = 1;
177 strncpy(audio->errmsg, err.what(), sizeof(audio->errmsg) - 1);
182 int rtaudio_stop_stream(rtaudio_t audio) {
184 audio->has_error = 0;
185 audio->audio->stopStream();
186 } catch (RtAudioError &err) {
187 audio->has_error = 1;
188 strncpy(audio->errmsg, err.what(), sizeof(audio->errmsg) - 1);
193 int rtaudio_abort_stream(rtaudio_t audio) {
195 audio->has_error = 0;
196 audio->audio->abortStream();
197 } catch (RtAudioError &err) {
198 audio->has_error = 1;
199 strncpy(audio->errmsg, err.what(), sizeof(audio->errmsg) - 1);
204 int rtaudio_is_stream_open(rtaudio_t audio) {
205 return !!audio->audio->isStreamOpen();
208 int rtaudio_is_stream_running(rtaudio_t audio) {
209 return !!audio->audio->isStreamRunning();
212 double rtaudio_get_stream_time(rtaudio_t audio) {
214 audio->has_error = 0;
215 return audio->audio->getStreamTime();
216 } catch (RtAudioError &err) {
217 audio->has_error = 1;
218 strncpy(audio->errmsg, err.what(), sizeof(audio->errmsg) - 1);
223 void rtaudio_set_stream_time(rtaudio_t audio, double time) {
225 audio->has_error = 0;
226 audio->audio->setStreamTime(time);
227 } catch (RtAudioError &err) {
228 audio->has_error = 1;
229 strncpy(audio->errmsg, err.what(), sizeof(audio->errmsg) - 1);
233 int rtaudio_get_stream_latency(rtaudio_t audio) {
235 audio->has_error = 0;
236 return audio->audio->getStreamLatency();
237 } catch (RtAudioError &err) {
238 audio->has_error = 1;
239 strncpy(audio->errmsg, err.what(), sizeof(audio->errmsg) - 1);
244 unsigned int rtaudio_get_stream_sample_rate(rtaudio_t audio) {
246 return audio->audio->getStreamSampleRate();
247 } catch (RtAudioError &err) {
248 audio->has_error = 1;
249 strncpy(audio->errmsg, err.what(), sizeof(audio->errmsg) - 1);
254 void rtaudio_show_warnings(rtaudio_t audio, int show) {
255 audio->audio->showWarnings(!!show);