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00020 #include "JackDriverLoader.h"
00021 #include "driver_interface.h"
00022 #include "JackPortAudioDriver.h"
00023 #include "JackEngineControl.h"
00024 #include "JackGraphManager.h"
00025 #include "JackError.h"
00026 #include "JackTime.h"
00027 #include "JackTools.h"
00028 #include "JackCompilerDeps.h"
00029 #include <iostream>
00030 #include <assert.h>
00031
00032 using namespace std;
00033
00034 namespace Jack
00035 {
00036
00037 int JackPortAudioDriver::Render(const void* inputBuffer, void* outputBuffer,
00038 unsigned long framesPerBuffer,
00039 const PaStreamCallbackTimeInfo* timeInfo,
00040 PaStreamCallbackFlags statusFlags,
00041 void* userData)
00042 {
00043 JackPortAudioDriver* driver = (JackPortAudioDriver*)userData;
00044 driver->fInputBuffer = (jack_default_audio_sample_t**)inputBuffer;
00045 driver->fOutputBuffer = (jack_default_audio_sample_t**)outputBuffer;
00046
00047 MMCSSAcquireRealTime(GetCurrentThread());
00048
00049 if (statusFlags) {
00050 if (statusFlags & paOutputUnderflow)
00051 jack_error("JackPortAudioDriver::Render paOutputUnderflow");
00052 if (statusFlags & paInputUnderflow)
00053 jack_error("JackPortAudioDriver::Render paInputUnderflow");
00054 if (statusFlags & paOutputOverflow)
00055 jack_error("JackPortAudioDriver::Render paOutputOverflow");
00056 if (statusFlags & paInputOverflow)
00057 jack_error("JackPortAudioDriver::Render paInputOverflow");
00058 if (statusFlags & paPrimingOutput)
00059 jack_error("JackPortAudioDriver::Render paOutputUnderflow");
00060
00061 if (statusFlags != paPrimingOutput) {
00062 jack_time_t cur_time = GetMicroSeconds();
00063 driver->NotifyXRun(cur_time, float(cur_time - driver->fBeginDateUst));
00064 }
00065 }
00066
00067
00068 set_threaded_log_function();
00069 driver->CycleTakeBeginTime();
00070 return (driver->Process() == 0) ? paContinue : paAbort;
00071 }
00072
00073 int JackPortAudioDriver::Read()
00074 {
00075 for (int i = 0; i < fCaptureChannels; i++) {
00076 memcpy(GetInputBuffer(i), fInputBuffer[i], sizeof(jack_default_audio_sample_t) * fEngineControl->fBufferSize);
00077 }
00078 return 0;
00079 }
00080
00081 int JackPortAudioDriver::Write()
00082 {
00083 for (int i = 0; i < fPlaybackChannels; i++) {
00084 memcpy(fOutputBuffer[i], GetOutputBuffer(i), sizeof(jack_default_audio_sample_t) * fEngineControl->fBufferSize);
00085 }
00086 return 0;
00087 }
00088
00089 PaError JackPortAudioDriver::OpenStream(jack_nframes_t buffer_size)
00090 {
00091 PaStreamParameters inputParameters;
00092 PaStreamParameters outputParameters;
00093
00094
00095 inputParameters.device = fInputDevice;
00096 inputParameters.channelCount = fCaptureChannels;
00097 inputParameters.sampleFormat = paFloat32 | paNonInterleaved;
00098 inputParameters.suggestedLatency = (fInputDevice != paNoDevice)
00099 ? Pa_GetDeviceInfo(inputParameters.device)->defaultLowInputLatency
00100 : 0;
00101 inputParameters.hostApiSpecificStreamInfo = NULL;
00102
00103 outputParameters.device = fOutputDevice;
00104 outputParameters.channelCount = fPlaybackChannels;
00105 outputParameters.sampleFormat = paFloat32 | paNonInterleaved;
00106 outputParameters.suggestedLatency = (fOutputDevice != paNoDevice)
00107 ? Pa_GetDeviceInfo(outputParameters.device)->defaultLowOutputLatency
00108 : 0;
00109 outputParameters.hostApiSpecificStreamInfo = NULL;
00110
00111 return Pa_OpenStream(&fStream,
00112 (fInputDevice == paNoDevice) ? 0 : &inputParameters,
00113 (fOutputDevice == paNoDevice) ? 0 : &outputParameters,
00114 fEngineControl->fSampleRate,
00115 buffer_size,
00116 paNoFlag,
00117 Render,
00118 this);
00119 }
00120
00121 void JackPortAudioDriver::UpdateLatencies()
00122 {
00123 jack_latency_range_t input_range;
00124 jack_latency_range_t output_range;
00125 jack_latency_range_t monitor_range;
00126
00127 const PaStreamInfo* info = Pa_GetStreamInfo(fStream);
00128 assert(info);
00129
00130 for (int i = 0; i < fCaptureChannels; i++) {
00131 input_range.max = input_range.min = fEngineControl->fBufferSize + (info->inputLatency * fEngineControl->fSampleRate) + fCaptureLatency;
00132 fGraphManager->GetPort(fCapturePortList[i])->SetLatencyRange(JackCaptureLatency, &input_range);
00133 }
00134
00135 for (int i = 0; i < fPlaybackChannels; i++) {
00136 output_range.max = output_range.min = (info->outputLatency * fEngineControl->fSampleRate) + fPlaybackLatency;
00137 if (fEngineControl->fSyncMode) {
00138 output_range.max = output_range.min += fEngineControl->fBufferSize;
00139 } else {
00140 output_range.max = output_range.min += fEngineControl->fBufferSize * 2;
00141 }
00142 fGraphManager->GetPort(fPlaybackPortList[i])->SetLatencyRange(JackPlaybackLatency, &output_range);
00143 if (fWithMonitorPorts) {
00144 monitor_range.min = monitor_range.max = fEngineControl->fBufferSize;
00145 fGraphManager->GetPort(fMonitorPortList[i])->SetLatencyRange(JackCaptureLatency, &monitor_range);
00146 }
00147 }
00148 }
00149
00150 int JackPortAudioDriver::Open(jack_nframes_t buffer_size,
00151 jack_nframes_t samplerate,
00152 bool capturing,
00153 bool playing,
00154 int inchannels,
00155 int outchannels,
00156 bool monitor,
00157 const char* capture_driver_uid,
00158 const char* playback_driver_uid,
00159 jack_nframes_t capture_latency,
00160 jack_nframes_t playback_latency)
00161 {
00162 int in_max = 0;
00163 int out_max = 0;
00164 PaError err = paNoError;
00165
00166 fCaptureLatency = capture_latency;
00167 fPlaybackLatency = playback_latency;
00168
00169 jack_log("JackPortAudioDriver::Open nframes = %ld in = %ld out = %ld capture name = %s playback name = %s samplerate = %ld",
00170 buffer_size, inchannels, outchannels, capture_driver_uid, playback_driver_uid, samplerate);
00171
00172
00173 if (JackAudioDriver::Open(buffer_size, samplerate, capturing, playing, inchannels, outchannels, monitor,
00174 capture_driver_uid, playback_driver_uid, capture_latency, playback_latency) != 0) {
00175 return -1;
00176 }
00177
00178
00179 if (capturing) {
00180 if (fPaDevices->GetInputDeviceFromName(capture_driver_uid, fInputDevice, in_max) < 0) {
00181 goto error;
00182 }
00183 }
00184 if (playing) {
00185 if (fPaDevices->GetOutputDeviceFromName(playback_driver_uid, fOutputDevice, out_max) < 0) {
00186 goto error;
00187 }
00188 }
00189
00190 jack_log("JackPortAudioDriver::Open fInputDevice = %d, fOutputDevice %d", fInputDevice, fOutputDevice);
00191
00192
00193 if (inchannels == 0) {
00194 jack_log("JackPortAudioDriver::Open setup max in channels = %ld", in_max);
00195 inchannels = in_max;
00196 }
00197 if (outchannels == 0) {
00198 jack_log("JackPortAudioDriver::Open setup max out channels = %ld", out_max);
00199 outchannels = out_max;
00200 }
00201
00202
00203 if (inchannels > in_max) {
00204 jack_error("This device has only %d available input channels.", in_max);
00205 inchannels = in_max;
00206 }
00207 if (outchannels > out_max) {
00208 jack_error("This device has only %d available output channels.", out_max);
00209 outchannels = out_max;
00210 }
00211
00212
00213 fCaptureChannels = inchannels;
00214 fPlaybackChannels = outchannels;
00215
00216 err = OpenStream(buffer_size);
00217 if (err != paNoError) {
00218 jack_error("Pa_OpenStream error %d = %s", err, Pa_GetErrorText(err));
00219 goto error;
00220 }
00221
00222 #ifdef __APPLE__
00223 fEngineControl->fPeriod = fEngineControl->fPeriodUsecs * 1000;
00224 fEngineControl->fComputation = JackTools::ComputationMicroSec(fEngineControl->fBufferSize) * 1000;
00225 fEngineControl->fConstraint = fEngineControl->fPeriodUsecs * 1000;
00226 #endif
00227
00228 assert(strlen(capture_driver_uid) < JACK_CLIENT_NAME_SIZE);
00229 assert(strlen(playback_driver_uid) < JACK_CLIENT_NAME_SIZE);
00230
00231 strcpy(fCaptureDriverName, capture_driver_uid);
00232 strcpy(fPlaybackDriverName, playback_driver_uid);
00233
00234 return 0;
00235
00236 error:
00237 JackAudioDriver::Close();
00238 jack_error("Can't open default PortAudio device");
00239 return -1;
00240 }
00241
00242 int JackPortAudioDriver::Close()
00243 {
00244
00245 int res = JackAudioDriver::Close();
00246 jack_log("JackPortAudioDriver::Close");
00247 Pa_CloseStream(fStream);
00248 return res;
00249 }
00250
00251 int JackPortAudioDriver::Start()
00252 {
00253 jack_log("JackPortAudioDriver::Start");
00254 if (JackAudioDriver::Start() >= 0) {
00255 PaError err = Pa_StartStream(fStream);
00256 if (err == paNoError) {
00257 return 0;
00258 }
00259 JackAudioDriver::Stop();
00260 }
00261 return -1;
00262 }
00263
00264 int JackPortAudioDriver::Stop()
00265 {
00266 jack_log("JackPortAudioDriver::Stop");
00267 PaError err = Pa_StopStream(fStream);
00268 int res = (err == paNoError) ? 0 : -1;
00269 if (JackAudioDriver::Stop() < 0) {
00270 res = -1;
00271 }
00272 return res;
00273 }
00274
00275 int JackPortAudioDriver::SetBufferSize(jack_nframes_t buffer_size)
00276 {
00277 PaError err;
00278
00279 if ((err = Pa_CloseStream(fStream)) != paNoError) {
00280 jack_error("Pa_CloseStream error = %s", Pa_GetErrorText(err));
00281 return -1;
00282 }
00283
00284 err = OpenStream(buffer_size);
00285 if (err != paNoError) {
00286 jack_error("Pa_OpenStream error %d = %s", err, Pa_GetErrorText(err));
00287 return -1;
00288 } else {
00289 JackAudioDriver::SetBufferSize(buffer_size);
00290 return 0;
00291 }
00292 }
00293
00294 }
00295
00296 #ifdef __cplusplus
00297 extern "C"
00298 {
00299 #endif
00300
00301 #include "JackCompilerDeps.h"
00302
00303 SERVER_EXPORT jack_driver_desc_t* driver_get_descriptor()
00304 {
00305 jack_driver_desc_t * desc;
00306 jack_driver_desc_filler_t filler;
00307 jack_driver_param_value_t value;
00308
00309 desc = jack_driver_descriptor_construct("portaudio", JackDriverMaster, "PortAudio API based audio backend", &filler);
00310
00311 value.ui = 0;
00312 jack_driver_descriptor_add_parameter(desc, &filler, "channels", 'c', JackDriverParamUInt, &value, NULL, "Maximum number of channels", NULL);
00313 jack_driver_descriptor_add_parameter(desc, &filler, "inchannels", 'i', JackDriverParamUInt, &value, NULL, "Maximum number of input channels", NULL);
00314 jack_driver_descriptor_add_parameter(desc, &filler, "outchannels", 'o', JackDriverParamUInt, &value, NULL, "Maximum number of output channels", NULL);
00315
00316 strcpy(value.str, "will take default PortAudio input device");
00317 jack_driver_descriptor_add_parameter(desc, &filler, "capture", 'C', JackDriverParamString, &value, NULL, "Provide capture ports. Optionally set PortAudio device name", NULL);
00318
00319 strcpy(value.str, "will take default PortAudio output device");
00320 jack_driver_descriptor_add_parameter(desc, &filler, "playback", 'P', JackDriverParamString, &value, NULL, "Provide playback ports. Optionally set PortAudio device name", NULL);
00321
00322 value.i = 0;
00323 jack_driver_descriptor_add_parameter(desc, &filler, "monitor", 'm', JackDriverParamBool, &value, NULL, "Provide monitor ports for the output", NULL);
00324
00325 value.i = TRUE;
00326 jack_driver_descriptor_add_parameter(desc, &filler, "duplex", 'D', JackDriverParamBool, &value, NULL, "Provide both capture and playback ports", NULL);
00327
00328 value.ui = 44100U;
00329 jack_driver_descriptor_add_parameter(desc, &filler, "rate", 'r', JackDriverParamUInt, &value, NULL, "Sample rate", NULL);
00330
00331 value.ui = 512U;
00332 jack_driver_descriptor_add_parameter(desc, &filler, "period", 'p', JackDriverParamUInt, &value, NULL, "Frames per period", NULL);
00333
00334 strcpy(value.str, "will take default PortAudio device name");
00335 jack_driver_descriptor_add_parameter(desc, &filler, "device", 'd', JackDriverParamString, &value, NULL, "PortAudio device name", NULL);
00336
00337 value.ui = 0;
00338 jack_driver_descriptor_add_parameter(desc, &filler, "input-latency", 'I', JackDriverParamUInt, &value, NULL, "Extra input latency", NULL);
00339 jack_driver_descriptor_add_parameter(desc, &filler, "output-latency", 'O', JackDriverParamUInt, &value, NULL, "Extra output latency", NULL);
00340
00341 value.i = TRUE;
00342 jack_driver_descriptor_add_parameter(desc, &filler, "list-devices", 'l', JackDriverParamBool, &value, NULL, "Display available PortAudio devices", NULL);
00343
00344 return desc;
00345 }
00346
00347 SERVER_EXPORT Jack::JackDriverClientInterface* driver_initialize(Jack::JackLockedEngine* engine, Jack::JackSynchro* table, const JSList* params)
00348 {
00349 jack_nframes_t srate = 44100;
00350 jack_nframes_t frames_per_interrupt = 512;
00351 const char* capture_pcm_name = "";
00352 const char* playback_pcm_name = "";
00353 bool capture = false;
00354 bool playback = false;
00355 int chan_in = 0;
00356 int chan_out = 0;
00357 bool monitor = false;
00358 const JSList *node;
00359 const jack_driver_param_t *param;
00360 jack_nframes_t systemic_input_latency = 0;
00361 jack_nframes_t systemic_output_latency = 0;
00362 PortAudioDevices* pa_devices = new PortAudioDevices();
00363
00364 for (node = params; node; node = jack_slist_next(node))
00365 {
00366 param = (const jack_driver_param_t *) node->data;
00367
00368 switch (param->character) {
00369
00370 case 'd':
00371 capture_pcm_name = param->value.str;
00372 playback_pcm_name = param->value.str;
00373 break;
00374
00375 case 'D':
00376 capture = true;
00377 playback = true;
00378 break;
00379
00380 case 'c':
00381 chan_in = chan_out = (int)param->value.ui;
00382 break;
00383
00384 case 'i':
00385 chan_in = (int)param->value.ui;
00386 break;
00387
00388 case 'o':
00389 chan_out = (int)param->value.ui;
00390 break;
00391
00392 case 'C':
00393 capture = true;
00394 if (strcmp(param->value.str, "none") != 0) {
00395 capture_pcm_name = param->value.str;
00396 }
00397 break;
00398
00399 case 'P':
00400 playback = TRUE;
00401 if (strcmp(param->value.str, "none") != 0) {
00402 playback_pcm_name = param->value.str;
00403 }
00404 break;
00405
00406 case 'm':
00407 monitor = param->value.i;
00408 break;
00409
00410 case 'r':
00411 srate = param->value.ui;
00412 break;
00413
00414 case 'p':
00415 frames_per_interrupt = (unsigned int)param->value.ui;
00416 break;
00417
00418 case 'I':
00419 systemic_input_latency = param->value.ui;
00420 break;
00421
00422 case 'O':
00423 systemic_output_latency = param->value.ui;
00424 break;
00425
00426 case 'l':
00427 pa_devices->DisplayDevicesNames();
00428 break;
00429 }
00430 }
00431
00432
00433 if (!capture && !playback) {
00434 capture = true;
00435 playback = true;
00436 }
00437
00438 Jack::JackDriverClientInterface* driver = new Jack::JackPortAudioDriver("system", "portaudio", engine, table, pa_devices);
00439 if (driver->Open(frames_per_interrupt, srate, capture, playback,
00440 chan_in, chan_out, monitor, capture_pcm_name,
00441 playback_pcm_name, systemic_input_latency,
00442 systemic_output_latency) == 0) {
00443 return driver;
00444 } else {
00445 delete driver;
00446 return NULL;
00447 }
00448 }
00449
00450 #ifdef __cplusplus
00451 }
00452 #endif