/[svn]/linuxsampler/trunk/src/Sampler.cpp
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Diff of /linuxsampler/trunk/src/Sampler.cpp

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revision 123 by schoenebeck, Mon Jun 14 19:33:16 2004 UTC revision 960 by iliev, Thu Nov 30 10:39:12 2006 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6     *   Copyright (C) 2005, 2006 Christian Schoenebeck                        *
7   *                                                                         *   *                                                                         *
8   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
9   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
# Line 24  Line 25 
25    
26  #include "Sampler.h"  #include "Sampler.h"
27    
28  #include "audiodriver/AudioOutputDeviceFactory.h"  #include "engines/EngineFactory.h"
29  #include "mididriver/MidiInputDeviceAlsa.h"  #include "engines/EngineChannelFactory.h"
30  #include "engines/gig/Engine.h"  #include "drivers/audio/AudioOutputDeviceFactory.h"
31    #include "drivers/midi/MidiInputDeviceFactory.h"
32    #include "network/lscpserver.h"
33    
34  namespace LinuxSampler {  namespace LinuxSampler {
35    
# Line 35  namespace LinuxSampler { Line 38  namespace LinuxSampler {
38    
39      SamplerChannel::SamplerChannel(Sampler* pS) {      SamplerChannel::SamplerChannel(Sampler* pS) {
40          pSampler           = pS;          pSampler           = pS;
41          pEngine            = NULL;          pEngineChannel     = NULL;
         pMidiInputDevice   = NULL;  
42          pAudioOutputDevice = NULL;          pAudioOutputDevice = NULL;
43            pMidiInputDevice   = NULL;
44            iMidiPort          = 0;
45            midiChannel        = midi_chan_all;
46          iIndex             = -1;          iIndex             = -1;
47      }      }
48    
49      SamplerChannel::~SamplerChannel() {      SamplerChannel::~SamplerChannel() {
50          if (pEngine) {          if (pEngineChannel) {
51              if (pMidiInputDevice) pMidiInputDevice->Disconnect(pEngine);              Engine* engine = pEngineChannel->GetEngine();
52              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine);              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
53              delete pEngine;  
54                MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : __GetMidiInputDevicePort(GetMidiInputChannel());
55                if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
56                if (pEngineChannel) {
57                    if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
58                    EngineChannelFactory::Destroy(pEngineChannel);
59    
60                    // reconnect engine if it still exists
61                    const std::set<Engine*>& engines = EngineFactory::EngineInstances();
62                    if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
63                }
64          }          }
65      }      }
66    
67      void SamplerChannel::LoadEngine(Engine::type_t EngineType) {      void SamplerChannel::SetEngineType(String EngineType) throw (Exception) {
68          dmsg(2,("SamplerChannel: Loading engine..."));          dmsg(2,("SamplerChannel: Assigning engine type..."));
69    
70          // create new engine          // create new engine channel
71          Engine* pNewEngine = NULL;          EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType);
72          switch (EngineType) {          if (!pNewEngineChannel) throw Exception("Unknown engine type");
73              case Engine::type_gig:  
74                  pNewEngine = new gig::Engine;          //FIXME: hack to allow fast retrieval of engine channel's sampler channel index
75                  break;          pNewEngineChannel->iSamplerChannelIndex = Index();
76              default:  
77                  throw LinuxSamplerException("Unknown engine type");          // dereference midi input port.
78            MidiInputPort* pMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
79            // disconnect old engine channel
80            if (pEngineChannel) {
81                Engine* engine = pEngineChannel->GetEngine();
82                if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
83    
84                if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
85                if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
86                EngineChannelFactory::Destroy(pEngineChannel);
87    
88                // reconnect engine if it still exists
89                const std::set<Engine*>& engines = EngineFactory::EngineInstances();
90                if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
91          }          }
92    
93          // disconnect old engine          // connect new engine channel
94          if (pEngine) {          if (pAudioOutputDevice) {
95              if (pMidiInputDevice) pMidiInputDevice->Disconnect(pEngine);              pNewEngineChannel->Connect(pAudioOutputDevice);
96              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine);              pAudioOutputDevice->Connect(pNewEngineChannel->GetEngine());
             delete pEngine;  
97          }          }
98            if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, GetMidiInputChannel());
99            pEngineChannel = pNewEngineChannel;
100    
101            // from now on get MIDI device and port from EngineChannel object
102            this->pMidiInputDevice = NULL;
103            this->iMidiPort        = 0;
104    
105            pEngineChannel->StatusChanged(true);
106    
         // connect new engine  
         pEngine = pNewEngine;  
         if (pMidiInputDevice) pMidiInputDevice->Connect(pNewEngine, (MidiInputDevice::midi_chan_t) Index());  
         if (pAudioOutputDevice) pAudioOutputDevice->Connect(pNewEngine);  
107          dmsg(2,("OK\n"));          dmsg(2,("OK\n"));
108      }      }
109    
110      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {
111            if(pAudioOutputDevice == pDevice) return;
112    
113          // disconnect old device          // disconnect old device
114          if (pAudioOutputDevice && pEngine) pAudioOutputDevice->Disconnect(pEngine);          if (pAudioOutputDevice && pEngineChannel) {
115                Engine* engine = pEngineChannel->GetEngine();
116                pAudioOutputDevice->Disconnect(engine);
117    
118                pEngineChannel->DisconnectAudioOutputDevice();
119    
120                // reconnect engine if it still exists
121                const std::set<Engine*>& engines = EngineFactory::EngineInstances();
122                if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
123            }
124    
125          // connect new device          // connect new device
126          pAudioOutputDevice = pDevice;          pAudioOutputDevice = pDevice;
127          if (pEngine) pAudioOutputDevice->Connect(pEngine);          if (pEngineChannel) {
128                pEngineChannel->Connect(pAudioOutputDevice);
129                pAudioOutputDevice->Connect(pEngineChannel->GetEngine());
130            }
131      }      }
132    
133      void SamplerChannel::SetMidiInputDevice(MidiInputDevice::type_t MidiType, MidiInputDevice::midi_chan_t MidiChannel) {      void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {
134          // get / create desired midi device         SetMidiInput(pDevice, 0, GetMidiInputChannel());
135          MidiInputDevice* pDevice = pSampler->GetMidiInputDevice(MidiType);      }
         if (!pDevice) pDevice = pSampler->CreateMidiInputDevice(MidiType);  
136    
137          // disconnect old device      void SamplerChannel::SetMidiInputPort(int MidiPort) {
138          if (pMidiInputDevice && pEngine) pMidiInputDevice->Disconnect(pEngine);         SetMidiInput(GetMidiInputDevice(), MidiPort, GetMidiInputChannel());
139        }
140    
141          // connect new device      void SamplerChannel::SetMidiInputChannel(midi_chan_t MidiChannel) {
142          pMidiInputDevice = pDevice;         SetMidiInput(GetMidiInputDevice(), GetMidiInputPort(), MidiChannel);
143          if (pEngine) pMidiInputDevice->Connect(pEngine, MidiChannel);      }
144    
145        void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, midi_chan_t MidiChannel) {
146            if (!pDevice) throw Exception("No MIDI input device assigned.");
147    
148            // get old and new midi input port
149            MidiInputPort* pOldMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
150            MidiInputPort* pNewMidiInputPort = pDevice->GetPort(iMidiPort);
151    
152            // disconnect old device port
153            if (pOldMidiInputPort && pEngineChannel) pOldMidiInputPort->Disconnect(pEngineChannel);
154            // remember new device, port and channel if not engine channel yet created
155            if (!pEngineChannel) {
156                this->pMidiInputDevice = pDevice;
157                this->iMidiPort        = iMidiPort;
158                this->midiChannel      = MidiChannel;
159            }
160    
161            // connect new device port
162            if (pNewMidiInputPort && pEngineChannel) pNewMidiInputPort->Connect(pEngineChannel, MidiChannel);
163            // Ooops.
164            if (pNewMidiInputPort == NULL)
165                throw Exception("There is no MIDI input port with index " + ToString(iMidiPort) + ".");
166      }      }
167    
168      Engine* SamplerChannel::GetEngine() {      EngineChannel* SamplerChannel::GetEngineChannel() {
169          return pEngine;          return pEngineChannel;
170      }      }
171    
172      MidiInputDevice* SamplerChannel::GetMidiInputDevice() {      midi_chan_t SamplerChannel::GetMidiInputChannel() {
173          return pMidiInputDevice;          if (pEngineChannel) this->midiChannel = pEngineChannel->MidiChannel();
174            return this->midiChannel;
175        }
176    
177        int SamplerChannel::GetMidiInputPort() {
178            MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : NULL;
179            if (pMidiInputPort) this->iMidiPort = (int) pMidiInputPort->GetPortNumber();
180            return iMidiPort;
181      }      }
182    
183      AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() {      AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() {
184          return pAudioOutputDevice;          return pAudioOutputDevice;
185      }      }
186    
187        MidiInputDevice* SamplerChannel::GetMidiInputDevice() {
188            if (pEngineChannel)
189                pMidiInputDevice = (pEngineChannel->GetMidiInputPort()) ? pEngineChannel->GetMidiInputPort()->GetDevice() : NULL;
190            return pMidiInputDevice;
191        }
192    
193      uint SamplerChannel::Index() {      uint SamplerChannel::Index() {
194          if (iIndex >= 0) return iIndex;          if (iIndex >= 0) return iIndex;
195    
196          std::vector<SamplerChannel*>::iterator iter = pSampler->vSamplerChannels.begin();          Sampler::SamplerChannelMap::iterator iter = pSampler->mSamplerChannels.begin();
197          for (int i = 0; iter != pSampler->vSamplerChannels.end(); i++, iter++) {          for (; iter != pSampler->mSamplerChannels.end(); iter++) {
198              if (*iter == this) {              if (iter->second == this) {
199                  iIndex = i;                  iIndex = iter->first;
200                  return i;                  return iIndex;
201              }              }
202          }          }
203    
204          throw LinuxSamplerException("SamplerChannel index not found");          throw Exception("Internal error: SamplerChannel index not found");
205      }      }
206    
207        MidiInputPort* SamplerChannel::__GetMidiInputDevicePort(int iMidiPort) {
208            MidiInputPort* pMidiInputPort = NULL;
209            MidiInputDevice* pMidiInputDevice = GetMidiInputDevice();
210            if (pMidiInputDevice)
211                pMidiInputPort = pMidiInputDevice->GetPort(iMidiPort);
212            return pMidiInputPort;
213        }
214    
215    
216    
217      // ******************************************************************      // ******************************************************************
218      // * Sampler      // * Sampler
# Line 132  namespace LinuxSampler { Line 221  namespace LinuxSampler {
221      }      }
222    
223      Sampler::~Sampler() {      Sampler::~Sampler() {
224          // delete sampler channels          Reset();
         {  
             std::vector<SamplerChannel*>::iterator iter = vSamplerChannels.begin();  
             for (; iter != vSamplerChannels.end(); iter++) delete *iter;  
         }  
   
         // delete midi input devices  
         {  
             MidiInputDeviceMap::iterator iter = MidiInputDevices.begin();  
             for (; iter != MidiInputDevices.end(); iter++) {  
                 MidiInputDevice* pDevice = iter->second;  
                 pDevice->StopListen();  
                 delete pDevice;  
             }  
         }  
   
         // delete audio output devices  
         {  
             AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();  
             for (; iter != mAudioOutputDevices.end(); iter++) {  
                 AudioOutputDevice* pDevice = iter->second;  
                 pDevice->Stop();  
                 delete pDevice;  
             }  
         }  
225      }      }
226    
227      uint Sampler::SamplerChannels() {      uint Sampler::SamplerChannels() {
228          return vSamplerChannels.size();          return mSamplerChannels.size();
229      }      }
230    
231      SamplerChannel* Sampler::AddSamplerChannel() {      SamplerChannel* Sampler::AddSamplerChannel() {
232            // if there's no sampler channel yet
233            if (!mSamplerChannels.size()) {
234                SamplerChannel* pChannel = new SamplerChannel(this);
235                mSamplerChannels[0] = pChannel;
236                LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, 1));
237                return pChannel;
238            }
239    
240            // get the highest used sampler channel index
241            uint lastIndex = (--(mSamplerChannels.end()))->first;
242    
243            // check if we reached the index limit
244            if (lastIndex + 1 < lastIndex) {
245                // search for an unoccupied sampler channel index starting from 0
246                for (uint i = 0; i < lastIndex; i++) {
247                    if (mSamplerChannels.find(i) != mSamplerChannels.end()) continue;
248                    // we found an unused index, so insert the new channel there
249                    SamplerChannel* pChannel = new SamplerChannel(this);
250                    mSamplerChannels[i] = pChannel;
251                    LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, i));
252                    return pChannel;
253                }
254                throw Exception("Internal error: could not find unoccupied sampler channel index.");
255            }
256    
257            // we have not reached the index limit so we just add the channel past the highest index
258          SamplerChannel* pChannel = new SamplerChannel(this);          SamplerChannel* pChannel = new SamplerChannel(this);
259          vSamplerChannels.push_back(pChannel);          mSamplerChannels[lastIndex + 1] = pChannel;
260            LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, lastIndex + 1));
261          return pChannel;          return pChannel;
262      }      }
263    
264      SamplerChannel* Sampler::GetSamplerChannel(uint uiSamplerChannel) {      SamplerChannel* Sampler::GetSamplerChannel(uint uiSamplerChannel) {
265          if (uiSamplerChannel >= SamplerChannels()) return NULL;          return (mSamplerChannels.find(uiSamplerChannel) != mSamplerChannels.end()) ? mSamplerChannels[uiSamplerChannel] : NULL;
266          return vSamplerChannels[uiSamplerChannel];      }
267    
268        std::map<uint, SamplerChannel*> Sampler::GetSamplerChannels() {
269            return mSamplerChannels;
270      }      }
271    
272      void Sampler::RemoveSamplerChannel(SamplerChannel* pSamplerChannel) {      void Sampler::RemoveSamplerChannel(SamplerChannel* pSamplerChannel) {
273          std::vector<SamplerChannel*>::iterator iterChan = vSamplerChannels.begin();          SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
274          for (; iterChan != vSamplerChannels.end(); iterChan++) {          for (; iterChan != mSamplerChannels.end(); iterChan++) {
275              if (*iterChan == pSamplerChannel) {              if (iterChan->second == pSamplerChannel) {
276                  vSamplerChannels.erase(iterChan);                  mSamplerChannels.erase(iterChan);
277                  delete pSamplerChannel;                  delete pSamplerChannel;
278                    LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, mSamplerChannels.size()));
279                  return;                  return;
280              }              }
281          }          }
# Line 195  namespace LinuxSampler { Line 291  namespace LinuxSampler {
291          return AudioOutputDeviceFactory::AvailableDrivers();          return AudioOutputDeviceFactory::AvailableDrivers();
292      }      }
293    
294      AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {      std::vector<String> Sampler::AvailableMidiInputDrivers() {
295            return MidiInputDeviceFactory::AvailableDrivers();
296        }
297    
298        std::vector<String> Sampler::AvailableEngineTypes() {
299            return EngineFactory::AvailableEngineTypes();
300        }
301    
302        AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (Exception) {
303          // create new device          // create new device
304          AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);          AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);
305    
         // activate device  
         pDevice->Play();  
   
306          // add new audio device to the audio device list          // add new audio device to the audio device list
307          for (uint i = 0; ; i++) { // seek for a free place starting from the beginning          for (uint i = 0; ; i++) { // seek for a free place starting from the beginning
308              if (!mAudioOutputDevices[i]) {              if (!mAudioOutputDevices[i]) {
# Line 217  namespace LinuxSampler { Line 318  namespace LinuxSampler {
318          return mAudioOutputDevices.size();          return mAudioOutputDevices.size();
319      }      }
320    
321        uint Sampler::MidiInputDevices() {
322            return mMidiInputDevices.size();
323        }
324    
325      std::map<uint, AudioOutputDevice*> Sampler::GetAudioOutputDevices() {      std::map<uint, AudioOutputDevice*> Sampler::GetAudioOutputDevices() {
326          return mAudioOutputDevices;          return mAudioOutputDevices;
327      }      }
328    
329      void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (LinuxSamplerException) {      std::map<uint, MidiInputDevice*> Sampler::GetMidiInputDevices() {
330            return mMidiInputDevices;
331        }
332    
333        void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (Exception) {
334          AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();          AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
335          for (; iter != mAudioOutputDevices.end(); iter++) {          for (; iter != mAudioOutputDevices.end(); iter++) {
336              if (iter->second == pDevice) {              if (iter->second == pDevice) {
337                  // check if there are still sampler engines connected to this device                  // check if there are still sampler engines connected to this device
338                  for (uint i = 0; i < SamplerChannels(); i++)                  for (uint i = 0; i < SamplerChannels(); i++)
339                      if (GetSamplerChannel(i)->GetAudioOutputDevice() == pDevice) throw LinuxSamplerException("Sampler channel " + ToString(i) + " is still connected to the audio output device.");                      if (GetSamplerChannel(i)->GetAudioOutputDevice() == pDevice) throw Exception("Sampler channel " + ToString(i) + " is still connected to the audio output device.");
340    
341                  // disable device                  // disable device
342                  pDevice->Stop();                  pDevice->Stop();
# Line 237  namespace LinuxSampler { Line 346  namespace LinuxSampler {
346    
347                  // destroy and free device from memory                  // destroy and free device from memory
348                  delete pDevice;                  delete pDevice;
349    
350                    break;
351              }              }
352          }          }
353      }      }
354    
355      MidiInputDevice* Sampler::CreateMidiInputDevice(MidiInputDevice::type_t MidiType) {      void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {
356          // check if device already created          MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
357          MidiInputDevice* pDevice = GetMidiInputDevice(MidiType);          for (; iter != mMidiInputDevices.end(); iter++) {
358          if (pDevice) return pDevice;              if (iter->second == pDevice) {
359                    // check if there are still sampler engines connected to this device
360                    for (uint i = 0; i < SamplerChannels(); i++)
361                        if (GetSamplerChannel(i)->GetMidiInputDevice() == pDevice) throw Exception("Sampler channel " + ToString(i) + " is still connected to the midi input device.");
362    
363                    // disable device
364                    pDevice->StopListen();
365    
366                    // remove device from the device list
367                    mMidiInputDevices.erase(iter);
368    
369                    // destroy and free device from memory
370                    delete pDevice;
371    
         // create new device  
         switch (MidiType) {  
             case MidiInputDevice::type_alsa:  
                 pDevice = new MidiInputDeviceAlsa;  
372                  break;                  break;
373              default:              }
                 throw LinuxSamplerException("Unknown audio output device type");  
374          }          }
375        }
376    
377          // activate device      MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (Exception) {
378          pDevice->Listen();          // create new device
379            MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this);
380    
381          // add new MIDI device to the MIDI device list          // add new device to the midi device list
382          MidiInputDevices[MidiType] = pDevice;          for (uint i = 0; ; i++) { // seek for a free place starting from the beginning
383                    if (!mMidiInputDevices[i]) {
384                            mMidiInputDevices[i] = pDevice;
385                            break;
386                    }
387            }
388    
389          return pDevice;          return pDevice;
390      }      }
391    
392      MidiInputDevice* Sampler::GetMidiInputDevice(MidiInputDevice::type_t MidiType) {      int Sampler::GetVoiceCount() {
393          MidiInputDeviceMap::iterator iter = MidiInputDevices.find(MidiType);          int count = 0;
394          return (iter != MidiInputDevices.end()) ? iter->second : NULL;          std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();
395    
396            for(; it != EngineFactory::EngineInstances().end(); it++) {
397                count += (*it)->VoiceCount();
398            }
399    
400            return count;
401        }
402    
403        void Sampler::Reset() {
404            // delete sampler channels
405            try {
406                while (true) {
407                        SamplerChannelMap::iterator iter = mSamplerChannels.begin();
408                        if (iter == mSamplerChannels.end()) break;
409                        RemoveSamplerChannel(iter->second);
410                }
411            }
412            catch(...) {
413                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all sampler channels, exiting.\n" << std::flush;
414                exit(EXIT_FAILURE);
415            }
416    
417            // delete midi input devices
418            try {
419                while (true) {
420                        MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
421                        if (iter == mMidiInputDevices.end()) break;
422                        DestroyMidiInputDevice(iter->second);
423                }
424            }
425            catch(...) {
426                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI input devices, exiting.\n" << std::flush;
427                exit(EXIT_FAILURE);
428            }
429    
430            // delete audio output devices
431            try {
432                while (true) {
433                        AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
434                        if (iter == mAudioOutputDevices.end()) break;
435                        DestroyAudioOutputDevice(iter->second);
436                }
437            }
438            catch(...) {
439                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all audio output devices, exiting.\n" << std::flush;
440                exit(EXIT_FAILURE);
441            }
442      }      }
443    
444  } // namespace LinuxSampler  } // namespace LinuxSampler
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