49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
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//
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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 <cstddef>
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#include "OpenSLEngineWrapper.h"
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#include "../../logging.h"
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#define CHECK_SL_ERROR(res, msg) if(res!=SL_RESULT_SUCCESS){ LOGE(msg); return NULL; }
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using namespace tgvoip;
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using namespace tgvoip::audio;
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SLObjectItf OpenSLEngineWrapper::sharedEngineObj=NULL;
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SLEngineItf OpenSLEngineWrapper::sharedEngine=NULL;
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int OpenSLEngineWrapper::count=0;
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void OpenSLEngineWrapper::DestroyEngine(){
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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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(*sharedEngineObj)->Destroy(sharedEngineObj);
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sharedEngineObj=NULL;
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sharedEngine=NULL;
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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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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, NULL, 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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