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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 #include "media/audio/linux/alsa_input.h" | 5 #include "media/audio/linux/alsa_input.h" |
6 | 6 |
7 #include "base/basictypes.h" | 7 #include "base/basictypes.h" |
8 #include "base/logging.h" | 8 #include "base/logging.h" |
9 #include "base/message_loop.h" | 9 #include "base/message_loop.h" |
10 #include "base/time.h" | 10 #include "base/time.h" |
11 #include "media/audio/linux/alsa_util.h" | 11 #include "media/audio/linux/alsa_util.h" |
12 #include "media/audio/linux/alsa_wrapper.h" | 12 #include "media/audio/linux/alsa_wrapper.h" |
13 | 13 |
14 namespace { | 14 static const int kNumPacketsInRingBuffer = 3; |
15 | |
16 const int kNumPacketsInRingBuffer = 3; | |
17 | 15 |
18 // If a read failed with no audio data, try again after this duration. | 16 // If a read failed with no audio data, try again after this duration. |
19 const int kNoAudioReadAgainTimeoutMs = 20; | 17 static const int kNoAudioReadAgainTimeoutMs = 20; |
20 | 18 |
21 const char kDefaultDevice1[] = "default"; | 19 static const char kDefaultDevice1[] = "default"; |
22 const char kDefaultDevice2[] = "plug:default"; | 20 static const char kDefaultDevice2[] = "plug:default"; |
23 | |
24 } // namespace | |
25 | 21 |
26 const char* AlsaPcmInputStream::kAutoSelectDevice = ""; | 22 const char* AlsaPcmInputStream::kAutoSelectDevice = ""; |
27 | 23 |
28 AlsaPcmInputStream::AlsaPcmInputStream(const std::string& device_name, | 24 AlsaPcmInputStream::AlsaPcmInputStream(const std::string& device_name, |
29 const AudioParameters& params, | 25 const AudioParameters& params, |
30 AlsaWrapper* wrapper) | 26 AlsaWrapper* wrapper) |
31 : device_name_(device_name), | 27 : device_name_(device_name), |
32 params_(params), | 28 params_(params), |
33 bytes_per_packet_(params.samples_per_packet * | 29 bytes_per_packet_(params.samples_per_packet * |
34 (params.channels * params.bits_per_sample) / 8), | 30 (params.channels * params.bits_per_sample) / 8), |
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205 | 201 |
206 audio_packet_.reset(); | 202 audio_packet_.reset(); |
207 device_handle_ = NULL; | 203 device_handle_ = NULL; |
208 callback_->OnClose(this); | 204 callback_->OnClose(this); |
209 } | 205 } |
210 | 206 |
211 void AlsaPcmInputStream::HandleError(const char* method, int error) { | 207 void AlsaPcmInputStream::HandleError(const char* method, int error) { |
212 LOG(WARNING) << method << ": " << wrapper_->StrError(error); | 208 LOG(WARNING) << method << ": " << wrapper_->StrError(error); |
213 callback_->OnError(this, error); | 209 callback_->OnError(this, error); |
214 } | 210 } |
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