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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef MEDIA_AUDIO_PULSE_AUDIO_MANAGER_PULSE_H_ | 5 #ifndef MEDIA_AUDIO_PULSE_AUDIO_MANAGER_PULSE_H_ |
6 #define MEDIA_AUDIO_PULSE_AUDIO_MANAGER_PULSE_H_ | 6 #define MEDIA_AUDIO_PULSE_AUDIO_MANAGER_PULSE_H_ |
7 | 7 |
8 #include <pulse/pulseaudio.h> | 8 #include <pulse/pulseaudio.h> |
9 #include <string> | 9 #include <string> |
10 | 10 |
11 #include "base/compiler_specific.h" | 11 #include "base/compiler_specific.h" |
12 #include "base/memory/ref_counted.h" | 12 #include "base/memory/ref_counted.h" |
13 #include "media/audio/audio_manager_base.h" | 13 #include "media/audio/audio_manager_base.h" |
14 | 14 |
15 namespace media { | 15 namespace media { |
16 | 16 |
17 class MEDIA_EXPORT AudioManagerPulse : public AudioManagerBase { | 17 class MEDIA_EXPORT AudioManagerPulse : public AudioManagerBase { |
18 public: | 18 public: |
19 AudioManagerPulse(); | 19 AudioManagerPulse(); |
20 virtual ~AudioManagerPulse(); | 20 virtual ~AudioManagerPulse(); |
21 | 21 |
22 static AudioManager* Create(); | 22 static AudioManager* Create(); |
23 | 23 |
24 // Implementation of AudioManager. | 24 // Implementation of AudioManager. |
25 virtual bool HasAudioOutputDevices() OVERRIDE; | 25 virtual bool HasAudioOutputDevices() OVERRIDE; |
26 virtual bool HasAudioInputDevices() OVERRIDE; | 26 virtual bool HasAudioInputDevices() OVERRIDE; |
27 virtual void ShowAudioInputSettings() OVERRIDE; | 27 virtual void ShowAudioInputSettings() OVERRIDE; |
28 virtual void GetAudioInputDeviceNames(media::AudioDeviceNames* device_names) | 28 virtual void GetAudioInputDeviceNames(media::AudioDeviceNames* device_names) |
29 OVERRIDE; | 29 OVERRIDE; |
| 30 virtual AudioParameters GetInputStreamParameters( |
| 31 const std::string& device_id) OVERRIDE; |
30 | 32 |
31 // Implementation of AudioManagerBase. | 33 // Implementation of AudioManagerBase. |
32 virtual AudioOutputStream* MakeLinearOutputStream( | 34 virtual AudioOutputStream* MakeLinearOutputStream( |
33 const AudioParameters& params) OVERRIDE; | 35 const AudioParameters& params) OVERRIDE; |
34 virtual AudioOutputStream* MakeLowLatencyOutputStream( | 36 virtual AudioOutputStream* MakeLowLatencyOutputStream( |
35 const AudioParameters& params) OVERRIDE; | 37 const AudioParameters& params) OVERRIDE; |
36 virtual AudioInputStream* MakeLinearInputStream( | 38 virtual AudioInputStream* MakeLinearInputStream( |
37 const AudioParameters& params, const std::string& device_id) OVERRIDE; | 39 const AudioParameters& params, const std::string& device_id) OVERRIDE; |
38 virtual AudioInputStream* MakeLowLatencyInputStream( | 40 virtual AudioInputStream* MakeLowLatencyInputStream( |
39 const AudioParameters& params, const std::string& device_id) OVERRIDE; | 41 const AudioParameters& params, const std::string& device_id) OVERRIDE; |
40 virtual AudioParameters GetPreferredLowLatencyOutputStreamParameters( | 42 |
| 43 protected: |
| 44 virtual AudioParameters GetPreferredOutputStreamParameters( |
41 const AudioParameters& input_params) OVERRIDE; | 45 const AudioParameters& input_params) OVERRIDE; |
42 | 46 |
43 int GetNativeSampleRate(); | |
44 | |
45 private: | 47 private: |
46 bool Init(); | 48 bool Init(); |
47 void DestroyPulse(); | 49 void DestroyPulse(); |
48 | 50 |
49 // Callback to get the devices' info like names, used by GetInputDevices(). | 51 // Callback to get the devices' info like names, used by GetInputDevices(). |
50 static void DevicesInfoCallback(pa_context* context, | 52 static void DevicesInfoCallback(pa_context* context, |
51 const pa_source_info* info, | 53 const pa_source_info* info, |
52 int error, void* user_data); | 54 int error, void* user_data); |
53 | 55 |
54 // Callback to get the native sample rate of PulseAudio, used by | 56 // Callback to get the native sample rate of PulseAudio, used by |
55 // GetNativeSampleRate(). | 57 // GetNativeSampleRate(). |
56 static void SampleRateInfoCallback(pa_context* context, | 58 static void SampleRateInfoCallback(pa_context* context, |
57 const pa_server_info* info, | 59 const pa_server_info* info, |
58 void* user_data); | 60 void* user_data); |
59 | 61 |
60 // Called by MakeLinearOutputStream and MakeLowLatencyOutputStream. | 62 // Called by MakeLinearOutputStream and MakeLowLatencyOutputStream. |
61 AudioOutputStream* MakeOutputStream(const AudioParameters& params); | 63 AudioOutputStream* MakeOutputStream(const AudioParameters& params); |
62 | 64 |
63 // Called by MakeLinearInputStream and MakeLowLatencyInputStream. | 65 // Called by MakeLinearInputStream and MakeLowLatencyInputStream. |
64 AudioInputStream* MakeInputStream(const AudioParameters& params, | 66 AudioInputStream* MakeInputStream(const AudioParameters& params, |
65 const std::string& device_id); | 67 const std::string& device_id); |
66 | 68 |
| 69 // Gets the native sample rate of Pulse. |
| 70 int GetNativeSampleRate(); |
| 71 |
67 pa_threaded_mainloop* input_mainloop_; | 72 pa_threaded_mainloop* input_mainloop_; |
68 pa_context* input_context_; | 73 pa_context* input_context_; |
69 AudioDeviceNames* devices_; | 74 AudioDeviceNames* devices_; |
70 int native_input_sample_rate_; | 75 int native_input_sample_rate_; |
71 | 76 |
72 DISALLOW_COPY_AND_ASSIGN(AudioManagerPulse); | 77 DISALLOW_COPY_AND_ASSIGN(AudioManagerPulse); |
73 }; | 78 }; |
74 | 79 |
75 } // namespace media | 80 } // namespace media |
76 | 81 |
77 #endif // MEDIA_AUDIO_PULSE_AUDIO_MANAGER_PULSE_H_ | 82 #endif // MEDIA_AUDIO_PULSE_AUDIO_MANAGER_PULSE_H_ |
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