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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_ALSA_ALSA_INPUT_H_ | 5 #ifndef MEDIA_AUDIO_ALSA_ALSA_INPUT_H_ |
6 #define MEDIA_AUDIO_ALSA_ALSA_INPUT_H_ | 6 #define MEDIA_AUDIO_ALSA_ALSA_INPUT_H_ |
7 | 7 |
8 #include <alsa/asoundlib.h> | 8 #include <alsa/asoundlib.h> |
9 | 9 |
10 #include <string> | 10 #include <string> |
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74 std::string device_name_; | 74 std::string device_name_; |
75 AudioParameters params_; | 75 AudioParameters params_; |
76 int bytes_per_buffer_; | 76 int bytes_per_buffer_; |
77 AlsaWrapper* wrapper_; | 77 AlsaWrapper* wrapper_; |
78 base::TimeDelta buffer_duration_; // Length of each recorded buffer. | 78 base::TimeDelta buffer_duration_; // Length of each recorded buffer. |
79 AudioInputCallback* callback_; // Valid during a recording session. | 79 AudioInputCallback* callback_; // Valid during a recording session. |
80 base::TimeTicks next_read_time_; // Scheduled time for next read callback. | 80 base::TimeTicks next_read_time_; // Scheduled time for next read callback. |
81 snd_pcm_t* device_handle_; // Handle to the ALSA PCM recording device. | 81 snd_pcm_t* device_handle_; // Handle to the ALSA PCM recording device. |
82 snd_mixer_t* mixer_handle_; // Handle to the ALSA microphone mixer. | 82 snd_mixer_t* mixer_handle_; // Handle to the ALSA microphone mixer. |
83 snd_mixer_elem_t* mixer_element_handle_; // Handle to the capture element. | 83 snd_mixer_elem_t* mixer_element_handle_; // Handle to the capture element. |
84 scoped_ptr<uint8[]> audio_buffer_; // Buffer used for reading audio data. | 84 scoped_ptr<uint8_t[]> audio_buffer_; // Buffer used for reading audio data. |
85 bool read_callback_behind_schedule_; | 85 bool read_callback_behind_schedule_; |
86 scoped_ptr<AudioBus> audio_bus_; | 86 scoped_ptr<AudioBus> audio_bus_; |
87 | 87 |
88 // NOTE: Weak pointers must be invalidated before all other member variables. | 88 // NOTE: Weak pointers must be invalidated before all other member variables. |
89 base::WeakPtrFactory<AlsaPcmInputStream> weak_factory_; | 89 base::WeakPtrFactory<AlsaPcmInputStream> weak_factory_; |
90 | 90 |
91 DISALLOW_COPY_AND_ASSIGN(AlsaPcmInputStream); | 91 DISALLOW_COPY_AND_ASSIGN(AlsaPcmInputStream); |
92 }; | 92 }; |
93 | 93 |
94 } // namespace media | 94 } // namespace media |
95 | 95 |
96 #endif // MEDIA_AUDIO_ALSA_ALSA_INPUT_H_ | 96 #endif // MEDIA_AUDIO_ALSA_ALSA_INPUT_H_ |
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