- OpenBSD media/audio support stub

- FreeBSD has ALSA, add it to media.gyp

Review URL: http://codereview.chromium.org/1301003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@42699 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 91 insertions, 0 deletions

diff --git a/media/audio/openbsd/audio_manager_openbsd.cc b/media/audio/openbsd/audio_manager_openbsd.cc
new file mode 100644
index 0000000..41dc93bb
--- /dev/null
+++ b/media/audio/openbsd/audio_manager_openbsd.cc
@@ -0,0 +1,57 @@
+// 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/openbsd/audio_manager_openbsd.h"
+
+#include "base/at_exit.h"
+#include "base/logging.h"
+
+namespace {
+AudioManagerOpenBSD* g_audio_manager = NULL;
+}  // namespace
+
+// Implementation of AudioManager.
+bool AudioManagerOpenBSD::HasAudioDevices() {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+AudioOutputStream* AudioManagerOpenBSD::MakeAudioStream(Format format,
+                                                        int channels,
+                                                        int sample_rate,
+                                                        char bits_per_sample) {
+  NOTIMPLEMENTED();
+  return NULL;
+}
+
+AudioManagerOpenBSD::AudioManagerOpenBSD() {
+}
+
+AudioManagerOpenBSD::~AudioManagerOpenBSD() {
+}
+
+void AudioManagerOpenBSD::Init() {
+}
+
+void AudioManagerOpenBSD::MuteAll() {
+  NOTIMPLEMENTED();
+}
+
+void AudioManagerOpenBSD::UnMuteAll() {
+  NOTIMPLEMENTED();
+}
+
+void DestroyAudioManagerOpenBSD(void* not_used) {
+  delete g_audio_manager;
+  g_audio_manager = NULL;
+}
+
+AudioManager* AudioManager::GetAudioManager() {
+  if (!g_audio_manager) {
+    g_audio_manager = new AudioManagerOpenBSD();
+    g_audio_manager->Init();
+    base::AtExitManager::RegisterCallback(&DestroyAudioManagerOpenBSD, NULL);
+  }
+  return g_audio_manager;
+}
diff --git a/media/audio/openbsd/audio_manager_openbsd.h b/media/audio/openbsd/audio_manager_openbsd.h
new file mode 100644
index 0000000..1766a77d
--- /dev/null
+++ b/media/audio/openbsd/audio_manager_openbsd.h
@@ -0,0 +1,34 @@
+// 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.
+
+#ifndef MEDIA_AUDIO_OPENBSD_AUDIO_MANAGER_OPENBSD_H_
+#define MEDIA_AUDIO_OPENBSD_AUDIO_MANAGER_OPENBSD_H_
+
+#include "media/audio/audio_output.h"
+
+class AudioManagerOpenBSD : public AudioManager {
+ public:
+  AudioManagerOpenBSD();
+
+  // Call before using a newly created AudioManagerOpenBSD instance.
+  virtual void Init();
+
+  // Implementation of AudioManager.
+  virtual bool HasAudioDevices();
+  virtual AudioOutputStream* MakeAudioStream(Format format, int channels,
+                                             int sample_rate,
+                                             char bits_per_sample);
+  virtual void MuteAll();
+  virtual void UnMuteAll();
+
+ protected:
+  // Friend function for invoking the destructor at exit.
+  friend void DestroyAudioManagerOpenBSD(void*);
+  virtual ~AudioManagerOpenBSD();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(AudioManagerOpenBSD);
+};
+
+#endif  // MEDIA_AUDIO_OPENBSD_AUDIO_MANAGER_OPENBSD_H_