50 lines
1.5 KiB
C++
50 lines
1.5 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 "mozilla/dom/AudioChannelBinding.h"
|
|
|
|
namespace mozilla {
|
|
namespace CubebUtils {
|
|
|
|
// 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();
|
|
|
|
// Queries the samplerate the hardware/mixer runs at, and stores it.
|
|
// Can be called on any thread. When this returns, it is safe to call
|
|
// PreferredSampleRate.
|
|
void InitPreferredSampleRate();
|
|
|
|
// Get the aforementioned sample rate. Thread safe.
|
|
uint32_t PreferredSampleRate();
|
|
|
|
void PrefChanged(const char* aPref, void* aClosure);
|
|
double GetVolumeScale();
|
|
bool GetFirstStream();
|
|
cubeb* GetCubebContext();
|
|
cubeb* GetCubebContextUnlocked();
|
|
uint32_t GetCubebLatency();
|
|
bool CubebLatencyPrefSet();
|
|
#if defined(__ANDROID__) && defined(MOZ_B2G)
|
|
cubeb_stream_type ConvertChannelToCubebType(dom::AudioChannel aChannel);
|
|
#endif
|
|
|
|
} // namespace CubebUtils
|
|
} // namespace mozilla
|
|
|
|
#endif // CubebUtils_h_
|