1 /*************************************************************************/ 2 /* audio_driver_pulseaudio.h */ 3 /*************************************************************************/ 4 /* This file is part of: */ 5 /* GODOT ENGINE */ 6 /* https://godotengine.org */ 7 /*************************************************************************/ 8 /* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ 9 /* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */ 10 /* */ 11 /* Permission is hereby granted, free of charge, to any person obtaining */ 12 /* a copy of this software and associated documentation files (the */ 13 /* "Software"), to deal in the Software without restriction, including */ 14 /* without limitation the rights to use, copy, modify, merge, publish, */ 15 /* distribute, sublicense, and/or sell copies of the Software, and to */ 16 /* permit persons to whom the Software is furnished to do so, subject to */ 17 /* the following conditions: */ 18 /* */ 19 /* The above copyright notice and this permission notice shall be */ 20 /* included in all copies or substantial portions of the Software. */ 21 /* */ 22 /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ 23 /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ 24 /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ 25 /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ 26 /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ 27 /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ 28 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ 29 /*************************************************************************/ 30 31 #ifndef AUDIO_DRIVER_PULSEAUDIO_H 32 #define AUDIO_DRIVER_PULSEAUDIO_H 33 34 #ifdef PULSEAUDIO_ENABLED 35 36 #include "core/os/mutex.h" 37 #include "core/os/thread.h" 38 #include "servers/audio_server.h" 39 40 #include <pulse/pulseaudio.h> 41 42 class AudioDriverPulseAudio : public AudioDriver { 43 44 Thread *thread; 45 Mutex *mutex; 46 47 pa_mainloop *pa_ml; 48 pa_context *pa_ctx; 49 pa_stream *pa_str; 50 pa_stream *pa_rec_str; 51 pa_channel_map pa_map; 52 pa_channel_map pa_rec_map; 53 54 String device_name; 55 String new_device; 56 String default_device; 57 58 String capture_device_name; 59 String capture_new_device; 60 String capture_default_device; 61 62 Vector<int32_t> samples_in; 63 Vector<int16_t> samples_out; 64 65 unsigned int mix_rate; 66 unsigned int buffer_frames; 67 unsigned int pa_buffer_size; 68 int channels; 69 int pa_ready; 70 int pa_status; 71 Array pa_devices; 72 Array pa_rec_devices; 73 74 bool active; 75 bool thread_exited; 76 mutable bool exit_thread; 77 78 float latency; 79 80 static void pa_state_cb(pa_context *c, void *userdata); 81 static void pa_sink_info_cb(pa_context *c, const pa_sink_info *l, int eol, void *userdata); 82 static void pa_source_info_cb(pa_context *c, const pa_source_info *l, int eol, void *userdata); 83 static void pa_server_info_cb(pa_context *c, const pa_server_info *i, void *userdata); 84 static void pa_sinklist_cb(pa_context *c, const pa_sink_info *l, int eol, void *userdata); 85 static void pa_sourcelist_cb(pa_context *c, const pa_source_info *l, int eol, void *userdata); 86 87 Error init_device(); 88 void finish_device(); 89 90 Error capture_init_device(); 91 void capture_finish_device(); 92 93 void detect_channels(bool capture = false); 94 95 static void thread_func(void *p_udata); 96 97 public: get_name()98 const char *get_name() const { 99 return "PulseAudio"; 100 }; 101 102 virtual Error init(); 103 virtual void start(); 104 virtual int get_mix_rate() const; 105 virtual SpeakerMode get_speaker_mode() const; 106 107 virtual Array get_device_list(); 108 virtual String get_device(); 109 virtual void set_device(String device); 110 111 virtual Array capture_get_device_list(); 112 virtual void capture_set_device(const String &p_name); 113 virtual String capture_get_device(); 114 115 virtual void lock(); 116 virtual void unlock(); 117 virtual void finish(); 118 119 virtual float get_latency(); 120 121 virtual Error capture_start(); 122 virtual Error capture_stop(); 123 124 AudioDriverPulseAudio(); 125 ~AudioDriverPulseAudio(); 126 }; 127 128 #endif // PULSEAUDIO_ENABLED 129 130 #endif // AUDIO_DRIVER_PULSEAUDIO_H 131