blob: fa35813391a6b7d0f92edea1c45a9df8430e07a6 [file] [log] [blame]
/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//#define LOG_NDEBUG 0
#define LOG_TAG "SoundPool::SoundManager"
#include <utils/Log.h>
#include "SoundManager.h"
#include <thread>
#include "SoundDecoder.h"
namespace android::soundpool {
static const size_t kDecoderThreads = std::thread::hardware_concurrency() >= 4 ? 2 : 1;
SoundManager::SoundManager()
: mDecoder{std::make_unique<SoundDecoder>(this, kDecoderThreads, ANDROID_PRIORITY_NORMAL)}
{
ALOGV("%s()", __func__);
}
SoundManager::~SoundManager()
{
ALOGV("%s()", __func__);
mDecoder->quit();
std::lock_guard lock(mSoundManagerLock);
mSounds.clear();
}
int32_t SoundManager::load(int fd, int64_t offset, int64_t length, int32_t priority)
{
ALOGV("%s(fd=%d, offset=%lld, length=%lld, priority=%d)",
__func__, fd, (long long)offset, (long long)length, priority);
int32_t soundID;
{
std::lock_guard lock(mSoundManagerLock);
// mNextSoundID is always positive and does not "integer overflow"
do {
mNextSoundID = mNextSoundID == INT32_MAX ? 1 : mNextSoundID + 1;
} while (findSound_l(mNextSoundID) != nullptr);
soundID = mNextSoundID;
auto sound = std::make_shared<Sound>(soundID, fd, offset, length);
mSounds.emplace(soundID, sound);
}
// mDecoder->loadSound() must be called outside of mSoundManagerLock.
// mDecoder->loadSound() may block on mDecoder message queue space;
// the message queue emptying may block on SoundManager::findSound().
//
// It is theoretically possible that sound loads might decode out-of-order.
mDecoder->loadSound(soundID);
return soundID;
}
bool SoundManager::unload(int32_t soundID)
{
ALOGV("%s(soundID=%d)", __func__, soundID);
std::lock_guard lock(mSoundManagerLock);
return mSounds.erase(soundID) > 0; // erase() returns number of sounds removed.
}
std::shared_ptr<Sound> SoundManager::findSound(int32_t soundID) const
{
std::lock_guard lock(mSoundManagerLock);
return findSound_l(soundID);
}
std::shared_ptr<Sound> SoundManager::findSound_l(int32_t soundID) const
{
auto it = mSounds.find(soundID);
return it != mSounds.end() ? it->second : nullptr;
}
void SoundManager::setCallback(SoundPool *soundPool, SoundPoolCallback* callback, void* user)
{
mCallbackHandler.setCallback(soundPool, callback, user);
}
void SoundManager::notify(SoundPoolEvent event)
{
mCallbackHandler.notify(event);
}
void* SoundManager::getUserData() const
{
return mCallbackHandler.getUserData();
}
} // namespace android::soundpool