blob: 40a878341335d81736af0056302521f161085398 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "media/audio/linux/audio_manager_linux.h"
#include "base/command_line.h"
#include "base/logging.h"
#include "media/audio/fake_audio_input_stream.h"
#include "media/audio/fake_audio_output_stream.h"
#include "media/audio/linux/alsa_output.h"
#include "media/audio/linux/alsa_wrapper.h"
#include "media/base/media_switches.h"
// Implementation of AudioManager.
bool AudioManagerLinux::HasAudioOutputDevices() {
// TODO(ajwong): Make this actually query audio devices.
return true;
}
bool AudioManagerLinux::HasAudioInputDevices() {
// TODO(satish): implement.
return false;
}
AudioOutputStream* AudioManagerLinux::MakeAudioOutputStream(
AudioParameters params) {
// Early return for testing hook. Do this before checking for
// |initialized_|.
if (params.format == AudioParameters::AUDIO_MOCK) {
return FakeAudioOutputStream::MakeFakeStream();
}
if (!initialized()) {
return NULL;
}
std::string device_name = AlsaPcmOutputStream::kAutoSelectDevice;
if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kAlsaDevice)) {
device_name = CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
switches::kAlsaDevice);
}
AlsaPcmOutputStream* stream =
new AlsaPcmOutputStream(device_name, params, wrapper_.get(), this,
GetMessageLoop());
AutoLock l(lock_);
active_streams_[stream] = scoped_refptr<AlsaPcmOutputStream>(stream);
return stream;
}
AudioInputStream* AudioManagerLinux::MakeAudioInputStream(
AudioParameters params, int samples_per_packet) {
if (params.format == AudioParameters::AUDIO_MOCK) {
return FakeAudioInputStream::MakeFakeStream(params, samples_per_packet);
}
// TODO(satish): implement.
return NULL;
}
AudioManagerLinux::AudioManagerLinux() {
}
AudioManagerLinux::~AudioManagerLinux() {
// Make sure we stop the thread first. If we let the default destructor to
// destruct the members, we may destroy audio streams before stopping the
// thread, resulting an unexpected behavior.
// This way we make sure activities of the audio streams are all stopped
// before we destroy them.
audio_thread_.Stop();
active_streams_.clear();
}
void AudioManagerLinux::Init() {
AudioManagerBase::Init();
wrapper_.reset(new AlsaWrapper());
}
void AudioManagerLinux::MuteAll() {
NOTIMPLEMENTED();
}
void AudioManagerLinux::UnMuteAll() {
NOTIMPLEMENTED();
}
void AudioManagerLinux::ReleaseOutputStream(AlsaPcmOutputStream* stream) {
if (stream) {
AutoLock l(lock_);
active_streams_.erase(stream);
}
}
// static
AudioManager* AudioManager::CreateAudioManager() {
return new AudioManagerLinux();
}
|