55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
//
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// libtgvoip is free and unencumbered public domain software.
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// For more information, see http://unlicense.org or the UNLICENSE file
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// you should have received with this source code distribution.
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//
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#include "OpenSLEngineWrapper.h"
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#include "../../logging.h"
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#include <cstddef>
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#define CHECK_SL_ERROR(res, msg) \
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if (res != SL_RESULT_SUCCESS) \
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{ \
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LOGE(msg); \
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return nullptr; \
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}
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using namespace tgvoip;
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using namespace tgvoip::audio;
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SLObjectItf OpenSLEngineWrapper::sharedEngineObj = nullptr;
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SLEngineItf OpenSLEngineWrapper::sharedEngine = nullptr;
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int OpenSLEngineWrapper::count = 0;
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void OpenSLEngineWrapper::DestroyEngine()
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{
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count--;
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LOGI("release: engine instance count %d", count);
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if (count == 0)
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{
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(*sharedEngineObj)->Destroy(sharedEngineObj);
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sharedEngineObj = nullptr;
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sharedEngine = nullptr;
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}
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LOGI("after release");
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}
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SLEngineItf OpenSLEngineWrapper::CreateEngine()
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{
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count++;
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if (sharedEngine)
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return sharedEngine;
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const SLInterfaceID pIDs[1] = {SL_IID_ENGINE};
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const SLboolean pIDsRequired[1] = {SL_BOOLEAN_TRUE};
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SLresult result = slCreateEngine(&sharedEngineObj, 0, nullptr, 1, pIDs, pIDsRequired);
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CHECK_SL_ERROR(result, "Error creating engine");
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result = (*sharedEngineObj)->Realize(sharedEngineObj, SL_BOOLEAN_FALSE);
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CHECK_SL_ERROR(result, "Error realizing engine");
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result = (*sharedEngineObj)->GetInterface(sharedEngineObj, SL_IID_ENGINE, &sharedEngine);
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CHECK_SL_ERROR(result, "Error getting engine interface");
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return sharedEngine;
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}
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