int OpenSLPlayer::createSource()
{
map<int, ContextInfo>::iterator itr = contextInfos.find(contextIndex);
if( itr == contextInfos.end() )
{
g2cerror(
"Attempt to create source from context that doesn't exist."
" index=%d\n", contextIndex);
exit(0);
}
ContextInfo& contextInfo(itr->second);
SourceInfo* sourceInfo = new SourceInfo;
SLresult result;
// configure audio source
SLDataLocator_AndroidSimpleBufferQueue loc_bufq = {SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE, 2};
SLDataFormat_PCM format_pcm = {SL_DATAFORMAT_PCM, 1, SL_SAMPLINGRATE_44_1,
SL_PCMSAMPLEFORMAT_FIXED_16, SL_PCMSAMPLEFORMAT_FIXED_16,
SL_SPEAKER_FRONT_CENTER, SL_BYTEORDER_LITTLEENDIAN};
SLDataSource audioSrc = {&loc_bufq, &format_pcm};
// configure audio sink
SLDataLocator_OutputMix loc_outmix = {SL_DATALOCATOR_OUTPUTMIX, contextInfo.outputMixObject};
SLDataSink audioSnk = {&loc_outmix, NULL};
// create audio player
const SLInterfaceID ids[3] = {SL_IID_BUFFERQUEUE, SL_IID_EFFECTSEND, SL_IID_VOLUME};
const SLboolean req[3] = {SL_BOOLEAN_TRUE, SL_BOOLEAN_TRUE, SL_BOOLEAN_TRUE};
result = (*contextInfo.engine)->CreateAudioPlayer(
contextInfo.engine, &(sourceInfo->bqPlayerObject),
&audioSrc, &audioSnk, 3, ids, req);
if( SL_RESULT_SUCCESS != result )
{
g2cerror("OpenSL Failed to initialize OpenSL audio player.\n");
exit(0);
}
int index = 1;
while( sourceInfos.find(index) != sourceInfos.end() )
index++;
sourceInfos[index] = sourceInfo;
sourceInfo->realize();
return index;
}
