1 // Copyright 2005-2019 The Mumble Developers. All rights reserved. 2 // Use of this source code is governed by a BSD-style license 3 // that can be found in the LICENSE file at the root of the 4 // Mumble source tree or at <https://www.mumble.info/LICENSE>. 5 6 /* Copyright (C) 2005-2011, Thorvald Natvig <thorvald@natvig.com> 7 Copyright (C) 2007, Stefan Gehn <mETz AT gehn DOT net> 8 9 All rights reserved. 10 11 Redistribution and use in source and binary forms, with or without 12 modification, are permitted provided that the following conditions 13 are met: 14 15 - Redistributions of source code must retain the above copyright notice, 16 this list of conditions and the following disclaimer. 17 - Redistributions in binary form must reproduce the above copyright notice, 18 this list of conditions and the following disclaimer in the documentation 19 and/or other materials provided with the distribution. 20 - Neither the name of the Mumble Developers nor the names of its 21 contributors may be used to endorse or promote products derived from this 22 software without specific prior written permission. 23 24 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 25 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 26 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 27 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR 28 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 29 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 30 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 31 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 32 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 33 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 34 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35 */ 36 37 #ifndef MUMBLE_MUMBLE_PAAUDIO_H_ 38 #define MUMBLE_MUMBLE_PAAUDIO_H_ 39 40 #include "AudioInput.h" 41 #include "AudioOutput.h" 42 43 #include <portaudio.h> 44 45 class PortAudioSystem; 46 typedef boost::shared_ptr<PortAudioSystem> PortAudioSystemPtr; 47 typedef boost::weak_ptr<PortAudioSystem> WeakPortAudioSystemPtr; 48 49 /** 50 * Small wrapper around some critical PortAudio functions. 51 * 52 * Basically this ensures that the PA lib is initialized and terminated properly and that 53 * several threads can open/close streams as they like. 54 */ 55 class PortAudioSystem : public QObject { 56 private: 57 Q_OBJECT 58 Q_DISABLE_COPY(PortAudioSystem) 59 protected: 60 //! Mutex around PA stream creation/deletion 61 static QMutex qmStream; 62 public: 63 static bool initStream(PaStream **stream, PaDeviceIndex devIndex, int frameSize, int *chans, bool isInput); 64 static bool terminateStream(PaStream *stream); 65 66 static bool startStream(PaStream *stream); 67 static bool stopStream(PaStream *stream); 68 69 static const QList<audioDevice> enumerateDevices(bool input, PaDeviceIndex match = -1); 70 }; 71 72 73 class PortAudioInput : public AudioInput { 74 private: 75 Q_OBJECT 76 Q_DISABLE_COPY(PortAudioInput) 77 public: 78 PortAudioInput(); 79 ~PortAudioInput() Q_DECL_OVERRIDE; 80 void run() Q_DECL_OVERRIDE; 81 }; 82 83 84 class PortAudioOutput : public AudioOutput { 85 private: 86 Q_OBJECT 87 Q_DISABLE_COPY(PortAudioOutput) 88 public: 89 PortAudioOutput(); 90 ~PortAudioOutput() Q_DECL_OVERRIDE; 91 void run() Q_DECL_OVERRIDE; 92 }; 93 94 #else 95 class PortAudioSystem; 96 class PortAudioInput; 97 class PortAudioOutput; 98 #endif 99