зеркало из https://github.com/mozilla/gecko-dev.git
67 строки
2.0 KiB
C++
67 строки
2.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim:set ts=2 sw=2 sts=2 et cindent: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#if !defined(CubebUtils_h_)
|
|
# define CubebUtils_h_
|
|
|
|
# include "cubeb/cubeb.h"
|
|
# include "nsString.h"
|
|
# include "mozilla/RefPtr.h"
|
|
|
|
class AudioDeviceInfo;
|
|
|
|
MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(cubeb_stream_prefs)
|
|
|
|
namespace mozilla {
|
|
namespace CubebUtils {
|
|
|
|
typedef cubeb_devid AudioDeviceID;
|
|
|
|
// Initialize Audio Library. Some Audio backends require initializing the
|
|
// library before using it.
|
|
void InitLibrary();
|
|
|
|
// Shutdown Audio Library. Some Audio backends require shutting down the
|
|
// library after using it.
|
|
void ShutdownLibrary();
|
|
|
|
// Returns the maximum number of channels supported by the audio hardware.
|
|
uint32_t MaxNumberOfChannels();
|
|
|
|
// Get the sample rate the hardware/mixer runs at. Thread safe.
|
|
uint32_t PreferredSampleRate();
|
|
|
|
enum Side { Input, Output };
|
|
|
|
double GetVolumeScale();
|
|
bool GetFirstStream();
|
|
cubeb* GetCubebContext();
|
|
void ReportCubebStreamInitFailure(bool aIsFirstStream);
|
|
void ReportCubebBackendUsed();
|
|
uint32_t GetCubebPlaybackLatencyInMilliseconds();
|
|
uint32_t GetCubebMSGLatencyInFrames(cubeb_stream_params* params);
|
|
bool CubebLatencyPrefSet();
|
|
void GetCurrentBackend(nsAString& aBackend);
|
|
cubeb_stream_prefs GetDefaultStreamPrefs();
|
|
char* GetForcedOutputDevice();
|
|
// No-op on all platforms but Android, where it tells the device's AudioManager
|
|
// to switch to "communication mode", which might change audio routing,
|
|
// bluetooth communication type, etc.
|
|
void SetInCommunication(bool aInCommunication);
|
|
|
|
# ifdef MOZ_WIDGET_ANDROID
|
|
uint32_t AndroidGetAudioOutputSampleRate();
|
|
uint32_t AndroidGetAudioOutputFramesPerBuffer();
|
|
# endif
|
|
|
|
# ifdef ENABLE_SET_CUBEB_BACKEND
|
|
void ForceSetCubebContext(cubeb* aCubebContext);
|
|
# endif
|
|
} // namespace CubebUtils
|
|
} // namespace mozilla
|
|
|
|
#endif // CubebUtils_h_
|