Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 71 insertions, 0 deletions

diff --git a/third_party/libwebrtc/modules/audio_device/linux/audio_mixer_manager_alsa_linux.h b/third_party/libwebrtc/modules/audio_device/linux/audio_mixer_manager_alsa_linux.h
new file mode 100644
index 0000000000..d98287822d
--- /dev/null
+++ b/third_party/libwebrtc/modules/audio_device/linux/audio_mixer_manager_alsa_linux.h
@@ -0,0 +1,71 @@
+/*
+ *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef AUDIO_DEVICE_AUDIO_MIXER_MANAGER_ALSA_LINUX_H_
+#define AUDIO_DEVICE_AUDIO_MIXER_MANAGER_ALSA_LINUX_H_
+
+#include <alsa/asoundlib.h>
+
+#include "modules/audio_device/include/audio_device.h"
+#include "modules/audio_device/linux/alsasymboltable_linux.h"
+#include "rtc_base/synchronization/mutex.h"
+
+namespace webrtc {
+
+class AudioMixerManagerLinuxALSA {
+ public:
+  int32_t OpenSpeaker(char* deviceName) RTC_LOCKS_EXCLUDED(mutex_);
+  int32_t OpenMicrophone(char* deviceName) RTC_LOCKS_EXCLUDED(mutex_);
+  int32_t SetSpeakerVolume(uint32_t volume) RTC_LOCKS_EXCLUDED(mutex_);
+  int32_t SpeakerVolume(uint32_t& volume) const;
+  int32_t MaxSpeakerVolume(uint32_t& maxVolume) const;
+  int32_t MinSpeakerVolume(uint32_t& minVolume) const;
+  int32_t SpeakerVolumeIsAvailable(bool& available);
+  int32_t SpeakerMuteIsAvailable(bool& available);
+  int32_t SetSpeakerMute(bool enable) RTC_LOCKS_EXCLUDED(mutex_);
+  int32_t SpeakerMute(bool& enabled) const;
+  int32_t MicrophoneMuteIsAvailable(bool& available);
+  int32_t SetMicrophoneMute(bool enable) RTC_LOCKS_EXCLUDED(mutex_);
+  int32_t MicrophoneMute(bool& enabled) const;
+  int32_t MicrophoneVolumeIsAvailable(bool& available);
+  int32_t SetMicrophoneVolume(uint32_t volume) RTC_LOCKS_EXCLUDED(mutex_);
+  int32_t MicrophoneVolume(uint32_t& volume) const;
+  int32_t MaxMicrophoneVolume(uint32_t& maxVolume) const;
+  int32_t MinMicrophoneVolume(uint32_t& minVolume) const;
+  int32_t Close() RTC_LOCKS_EXCLUDED(mutex_);
+  int32_t CloseSpeaker() RTC_LOCKS_EXCLUDED(mutex_);
+  int32_t CloseMicrophone() RTC_LOCKS_EXCLUDED(mutex_);
+  bool SpeakerIsInitialized() const;
+  bool MicrophoneIsInitialized() const;
+
+ public:
+  AudioMixerManagerLinuxALSA();
+  ~AudioMixerManagerLinuxALSA();
+
+ private:
+  int32_t CloseSpeakerLocked() RTC_EXCLUSIVE_LOCKS_REQUIRED(mutex_);
+  int32_t CloseMicrophoneLocked() RTC_EXCLUSIVE_LOCKS_REQUIRED(mutex_);
+  int32_t LoadMicMixerElement() const;
+  int32_t LoadSpeakerMixerElement() const;
+  void GetControlName(char* controlName, char* deviceName) const;
+
+ private:
+  Mutex mutex_;
+  mutable snd_mixer_t* _outputMixerHandle;
+  char _outputMixerStr[kAdmMaxDeviceNameSize];
+  mutable snd_mixer_t* _inputMixerHandle;
+  char _inputMixerStr[kAdmMaxDeviceNameSize];
+  mutable snd_mixer_elem_t* _outputMixerElement;
+  mutable snd_mixer_elem_t* _inputMixerElement;
+};
+
+}  // namespace webrtc
+
+#endif  // MODULES_AUDIO_DEVICE_MAIN_SOURCE_LINUX_AUDIO_MIXER_MANAGER_ALSA_LINUX_H_