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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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_PULSE_UTIL_H_ | 5 #ifndef MEDIA_AUDIO_PULSE_PULSE_UTIL_H_ |
6 #define MEDIA_AUDIO_PULSE_PULSE_UTIL_H_ | 6 #define MEDIA_AUDIO_PULSE_PULSE_UTIL_H_ |
7 | 7 |
8 #include <pulse/pulseaudio.h> | 8 #include <pulse/pulseaudio.h> |
9 | 9 |
10 #include "base/macros.h" | 10 #include "base/macros.h" |
11 #include "media/audio/audio_device_name.h" | 11 #include "media/audio/audio_device_name.h" |
12 #include "media/base/channel_layout.h" | 12 #include "media/base/channel_layout.h" |
13 | 13 |
14 namespace media { | 14 namespace media { |
15 | 15 |
16 class AudioParameters; | 16 class AudioParameters; |
17 | 17 |
18 namespace pulse { | 18 namespace pulse { |
19 | 19 |
20 enum class RequestType : int8_t { INPUT, OUTPUT }; | |
21 | |
22 // A helper class that acquires pa_threaded_mainloop_lock() while in scope. | 20 // A helper class that acquires pa_threaded_mainloop_lock() while in scope. |
23 class AutoPulseLock { | 21 class AutoPulseLock { |
24 public: | 22 public: |
25 explicit AutoPulseLock(pa_threaded_mainloop* pa_mainloop) | 23 explicit AutoPulseLock(pa_threaded_mainloop* pa_mainloop) |
26 : pa_mainloop_(pa_mainloop) { | 24 : pa_mainloop_(pa_mainloop) { |
27 pa_threaded_mainloop_lock(pa_mainloop_); | 25 pa_threaded_mainloop_lock(pa_mainloop_); |
28 } | 26 } |
29 | 27 |
30 ~AutoPulseLock() { | 28 ~AutoPulseLock() { |
31 pa_threaded_mainloop_unlock(pa_mainloop_); | 29 pa_threaded_mainloop_unlock(pa_mainloop_); |
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70 bool CreateOutputStream(pa_threaded_mainloop** mainloop, | 68 bool CreateOutputStream(pa_threaded_mainloop** mainloop, |
71 pa_context** context, | 69 pa_context** context, |
72 pa_stream** stream, | 70 pa_stream** stream, |
73 const AudioParameters& params, | 71 const AudioParameters& params, |
74 const std::string& device_id, | 72 const std::string& device_id, |
75 const std::string& app_name, | 73 const std::string& app_name, |
76 pa_stream_notify_cb_t stream_callback, | 74 pa_stream_notify_cb_t stream_callback, |
77 pa_stream_request_cb_t write_callback, | 75 pa_stream_request_cb_t write_callback, |
78 void* user_data); | 76 void* user_data); |
79 | 77 |
80 // Utility functions to match up outputs and inputs. | |
81 std::string GetBusOfInput(pa_threaded_mainloop* mainloop, | |
82 pa_context* context, | |
83 const std::string& name); | |
84 std::string GetOutputCorrespondingTo(pa_threaded_mainloop* mainloop, | |
85 pa_context* context, | |
86 const std::string& bus); | |
87 std::string GetRealDefaultDeviceId(pa_threaded_mainloop* mainloop, | |
88 pa_context* context, | |
89 RequestType type); | |
90 } // namespace pulse | 78 } // namespace pulse |
91 | 79 |
92 } // namespace media | 80 } // namespace media |
93 | 81 |
94 #endif // MEDIA_AUDIO_PULSE_PULSE_UTIL_H_ | 82 #endif // MEDIA_AUDIO_PULSE_PULSE_UTIL_H_ |
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