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Merge pull request #8493 from JosJuice/android-audio-volume

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Android: Add audio volume setting
This commit is contained in:
Anthony
2019-11-27 15:36:54 -08:00
committed by GitHub
parent 8d814baf79 cf8208ace9
commit 34a1df1c68
6 changed files with 25 additions and 6 deletions
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18
Source/Core/AudioCommon/OpenSLESStream.cpp
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@ -3,15 +3,18 @@
// Refer to the license.txt file included.
#ifdef ANDROID
#include <assert.h>
#include "AudioCommon/OpenSLESStream.h"
#include <cassert>
#include <cmath>
#include <SLES/OpenSLES.h>
#include <SLES/OpenSLES_Android.h>
#include "AudioCommon/OpenSLESStream.h"
#include "Common/Assert.h"
#include "Common/CommonTypes.h"
#include "Common/Logging/Log.h"
#include "Core/ConfigManager.h"
// engine interfaces
static SLObjectItf engineObject;
@ -22,7 +25,6 @@ static SLObjectItf outputMixObject;
static SLObjectItf bqPlayerObject = nullptr;
static SLPlayItf bqPlayerPlay;
static SLAndroidSimpleBufferQueueItf bqPlayerBufferQueue;
static SLMuteSoloItf bqPlayerMuteSolo;
static SLVolumeItf bqPlayerVolume;
static Mixer* g_mixer;
#define BUFFER_SIZE 512
@ -94,6 +96,8 @@ bool OpenSLESStream::Init()
result =
(*bqPlayerObject)->GetInterface(bqPlayerObject, SL_IID_BUFFERQUEUE, &bqPlayerBufferQueue);
assert(SL_RESULT_SUCCESS == result);
result = (*bqPlayerObject)->GetInterface(bqPlayerObject, SL_IID_VOLUME, &bqPlayerVolume);
assert(SL_RESULT_SUCCESS == result);
result = (*bqPlayerBufferQueue)->RegisterCallback(bqPlayerBufferQueue, bqPlayerCallback, nullptr);
assert(SL_RESULT_SUCCESS == result);
result = (*bqPlayerPlay)->SetPlayState(bqPlayerPlay, SL_PLAYSTATE_PLAYING);
@ -118,7 +122,6 @@ OpenSLESStream::~OpenSLESStream()
bqPlayerObject = nullptr;
bqPlayerPlay = nullptr;
bqPlayerBufferQueue = nullptr;
bqPlayerMuteSolo = nullptr;
bqPlayerVolume = nullptr;
}
@ -135,4 +138,11 @@ OpenSLESStream::~OpenSLESStream()
engineEngine = nullptr;
}
}
void OpenSLESStream::SetVolume(int volume)
{
const SLmillibel attenuation =
volume <= 0 ? SL_MILLIBEL_MIN : static_cast<SLmillibel>(2000 * std::log10(volume / 100.0f));
(*bqPlayerVolume)->SetVolumeLevel(bqPlayerVolume, attenuation);
}
#endif

1
Source/Core/AudioCommon/OpenSLESStream.h
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@ -16,6 +16,7 @@ public:
~OpenSLESStream() override;
bool Init() override;
bool SetRunning(bool running) override { return running; }
void SetVolume(int volume) override;
static bool isValid() { return true; }
private: