static void sl_free(void *data)
{
sl_t *sl = (sl_t*)data;
if (!sl)
return;
if (sl->player)
SLPlayItf_SetPlayState(sl->player, SL_PLAYSTATE_STOPPED);
if (sl->buffer_queue_object)
SLObjectItf_Destroy(sl->buffer_queue_object);
if (sl->output_mix)
SLObjectItf_Destroy(sl->output_mix);
if (sl->engine_object)
SLObjectItf_Destroy(sl->engine_object);
if (sl->lock)
slock_free(sl->lock);
if (sl->cond)
scond_free(sl->cond);
free(sl->buffer);
free(sl->buffer_chunk);
free(sl);
}
static ALCenum opensl_open_playback(ALCdevice *Device, const ALCchar *deviceName)
{
osl_data *data = NULL;
SLresult result;
if(!deviceName)
deviceName = opensl_device;
else if(strcmp(deviceName, opensl_device) != 0)
return ALC_INVALID_VALUE;
data = calloc(1, sizeof(*data));
if(!data)
return ALC_OUT_OF_MEMORY;
// create engine
result = slCreateEngine(&data->engineObject, 0, NULL, 0, NULL, NULL);
PRINTERR(result, "slCreateEngine");
if(SL_RESULT_SUCCESS == result)
{
result = SLObjectItf_Realize(data->engineObject, SL_BOOLEAN_FALSE);
PRINTERR(result, "engine->Realize");
}
if(SL_RESULT_SUCCESS == result)
{
result = SLObjectItf_GetInterface(data->engineObject, SL_IID_ENGINE, &data->engine);
PRINTERR(result, "engine->GetInterface");
}
if(SL_RESULT_SUCCESS == result)
{
result = SLEngineItf_CreateOutputMix(data->engine, &data->outputMix, 0, NULL, NULL);
PRINTERR(result, "engine->CreateOutputMix");
}
if(SL_RESULT_SUCCESS == result)
{
result = SLObjectItf_Realize(data->outputMix, SL_BOOLEAN_FALSE);
PRINTERR(result, "outputMix->Realize");
}
if(SL_RESULT_SUCCESS != result)
{
if(data->outputMix != NULL)
SLObjectItf_Destroy(data->outputMix);
data->outputMix = NULL;
if(data->engineObject != NULL)
SLObjectItf_Destroy(data->engineObject);
data->engineObject = NULL;
data->engine = NULL;
free(data);
return ALC_INVALID_VALUE;
}
Device->DeviceName = strdup(deviceName);
Device->ExtraData = data;
return ALC_NO_ERROR;
}
static void opensl_close_playback(ALCdevice *Device)
{
osl_data *data = Device->ExtraData;
SLObjectItf_Destroy(data->outputMix);
data->outputMix = NULL;
SLObjectItf_Destroy(data->engineObject);
data->engineObject = NULL;
data->engine = NULL;
free(data);
Device->ExtraData = NULL;
}
static void opensl_stop_playback(ALCdevice *Device)
{
osl_data *data = Device->ExtraData;
if(data->bufferQueueObject != NULL)
SLObjectItf_Destroy(data->bufferQueueObject);
data->bufferQueueObject = NULL;
free(data->buffer);
data->buffer = NULL;
data->bufferSize = 0;
}
static ALCboolean opensl_start_playback(ALCdevice *Device)
{
osl_data *data = Device->ExtraData;
SLAndroidSimpleBufferQueueItf bufferQueue;
SLPlayItf player;
SLresult result;
ALuint i;
result = SLObjectItf_GetInterface(data->bufferQueueObject, SL_IID_BUFFERQUEUE, &bufferQueue);
PRINTERR(result, "bufferQueue->GetInterface");
if(SL_RESULT_SUCCESS == result)
{
result = (*bufferQueue)->RegisterCallback(bufferQueue, opensl_callback, Device);
PRINTERR(result, "bufferQueue->RegisterCallback");
}
if(SL_RESULT_SUCCESS == result)
{
data->frameSize = FrameSizeFromDevFmt(Device->FmtChans, Device->FmtType);
data->bufferSize = Device->UpdateSize * data->frameSize;
data->buffer = calloc(1, data->bufferSize);
if(!data->buffer)
{
result = SL_RESULT_MEMORY_FAILURE;
PRINTERR(result, "calloc");
}
}
/* enqueue the first buffer to kick off the callbacks */
for(i = 0;i < Device->NumUpdates;i++)
{
if(SL_RESULT_SUCCESS == result)
{
result = (*bufferQueue)->Enqueue(bufferQueue, data->buffer, data->bufferSize);
PRINTERR(result, "bufferQueue->Enqueue");
}
}
if(SL_RESULT_SUCCESS == result)
{
result = SLObjectItf_GetInterface(data->bufferQueueObject, SL_IID_PLAY, &player);
PRINTERR(result, "bufferQueue->GetInterface");
}
if(SL_RESULT_SUCCESS == result)
{
result = SLPlayItf_SetPlayState(player, SL_PLAYSTATE_PLAYING);
PRINTERR(result, "player->SetPlayState");
}
if(SL_RESULT_SUCCESS != result)
{
if(data->bufferQueueObject != NULL)
SLObjectItf_Destroy(data->bufferQueueObject);
data->bufferQueueObject = NULL;
free(data->buffer);
data->buffer = NULL;
data->bufferSize = 0;
return ALC_FALSE;
}
return ALC_TRUE;
}
static ALCboolean opensl_reset_playback(ALCdevice *Device)
{
osl_data *data = Device->ExtraData;
SLDataLocator_AndroidSimpleBufferQueue loc_bufq;
SLDataLocator_OutputMix loc_outmix;
SLDataFormat_PCM format_pcm;
SLDataSource audioSrc;
SLDataSink audioSnk;
SLInterfaceID id;
SLboolean req;
SLresult result;
Device->UpdateSize = (ALuint64)Device->UpdateSize * 44100 / Device->Frequency;
Device->UpdateSize = Device->UpdateSize * Device->NumUpdates / 2;
Device->NumUpdates = 2;
Device->Frequency = 44100;
Device->FmtChans = DevFmtStereo;
Device->FmtType = DevFmtShort;
SetDefaultWFXChannelOrder(Device);
id = SL_IID_ANDROIDSIMPLEBUFFERQUEUE;
req = SL_BOOLEAN_TRUE;
loc_bufq.locatorType = SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE;
loc_bufq.numBuffers = Device->NumUpdates;
format_pcm.formatType = SL_DATAFORMAT_PCM;
format_pcm.numChannels = ChannelsFromDevFmt(Device->FmtChans);
format_pcm.samplesPerSec = Device->Frequency * 1000;
format_pcm.bitsPerSample = BytesFromDevFmt(Device->FmtType) * 8;
format_pcm.containerSize = format_pcm.bitsPerSample;
format_pcm.channelMask = GetChannelMask(Device->FmtChans);
#ifdef __ANDROID__
format_pcm.endianness = SL_BYTEORDER_LITTLEENDIAN;
#else
format_pcm.endianness = SL_BYTEORDER_NATIVE;
#endif // __ANDROID__
audioSrc.pLocator = &loc_bufq;
audioSrc.pFormat = &format_pcm;
loc_outmix.locatorType = SL_DATALOCATOR_OUTPUTMIX;
loc_outmix.outputMix = data->outputMix;
audioSnk.pLocator = &loc_outmix;
audioSnk.pFormat = NULL;
if(data->bufferQueueObject != NULL)
SLObjectItf_Destroy(data->bufferQueueObject);
data->bufferQueueObject = NULL;
result = SLEngineItf_CreateAudioPlayer(data->engine, &data->bufferQueueObject, &audioSrc, &audioSnk, 1, &id, &req);
PRINTERR(result, "engine->CreateAudioPlayer");
if(SL_RESULT_SUCCESS == result)
{
result = SLObjectItf_Realize(data->bufferQueueObject, SL_BOOLEAN_FALSE);
PRINTERR(result, "bufferQueue->Realize");
}
if(SL_RESULT_SUCCESS != result)
{
if(data->bufferQueueObject != NULL)
SLObjectItf_Destroy(data->bufferQueueObject);
data->bufferQueueObject = NULL;
return ALC_FALSE;
}
return ALC_TRUE;
}
static ALCboolean opensl_reset_playback(ALCdevice *Device)
{
osl_data *data = Device->ExtraData;
SLDataLocator_AndroidSimpleBufferQueue loc_bufq;
SLAndroidSimpleBufferQueueItf bufferQueue;
SLDataLocator_OutputMix loc_outmix;
SLDataFormat_PCM format_pcm;
SLDataSource audioSrc;
SLDataSink audioSnk;
SLPlayItf player;
SLInterfaceID id;
SLboolean req;
SLresult result;
ALuint i;
Device->UpdateSize = (ALuint64)Device->UpdateSize * 44100 / Device->Frequency;
Device->UpdateSize = Device->UpdateSize * Device->NumUpdates / 2;
Device->NumUpdates = 2;
Device->Frequency = 44100;
Device->FmtChans = DevFmtStereo;
Device->FmtType = DevFmtShort;
SetDefaultWFXChannelOrder(Device);
id = SL_IID_ANDROIDSIMPLEBUFFERQUEUE;
req = SL_BOOLEAN_TRUE;
loc_bufq.locatorType = SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE;
loc_bufq.numBuffers = Device->NumUpdates;
format_pcm.formatType = SL_DATAFORMAT_PCM;
format_pcm.numChannels = ChannelsFromDevFmt(Device->FmtChans);
format_pcm.samplesPerSec = Device->Frequency * 1000;
format_pcm.bitsPerSample = BytesFromDevFmt(Device->FmtType) * 8;
format_pcm.containerSize = format_pcm.bitsPerSample;
format_pcm.channelMask = GetChannelMask(Device->FmtChans);
format_pcm.endianness = SL_BYTEORDER_NATIVE;
audioSrc.pLocator = &loc_bufq;
audioSrc.pFormat = &format_pcm;
loc_outmix.locatorType = SL_DATALOCATOR_OUTPUTMIX;
loc_outmix.outputMix = data->outputMix;
audioSnk.pLocator = &loc_outmix;
audioSnk.pFormat = NULL;
result = SLEngineItf_CreateAudioPlayer(data->engine, &data->bufferQueueObject, &audioSrc, &audioSnk, 1, &id, &req);
PRINTERR(result, "engine->CreateAudioPlayer");
if(SL_RESULT_SUCCESS == result)
{
result = SLObjectItf_Realize(data->bufferQueueObject, SL_BOOLEAN_FALSE);
PRINTERR(result, "bufferQueue->Realize");
}
if(SL_RESULT_SUCCESS == result)
{
result = SLObjectItf_GetInterface(data->bufferQueueObject, SL_IID_BUFFERQUEUE, &bufferQueue);
PRINTERR(result, "bufferQueue->GetInterface");
}
if(SL_RESULT_SUCCESS == result)
{
result = (*bufferQueue)->RegisterCallback(bufferQueue, opensl_callback, Device);
PRINTERR(result, "bufferQueue->RegisterCallback");
}
if(SL_RESULT_SUCCESS == result)
{
data->frameSize = FrameSizeFromDevFmt(Device->FmtChans, Device->FmtType);
data->bufferSize = Device->UpdateSize * data->frameSize;
data->buffer = calloc(1, data->bufferSize);
if(!data->buffer)
{
result = SL_RESULT_MEMORY_FAILURE;
PRINTERR(result, "calloc");
}
}
/* enqueue the first buffer to kick off the callbacks */
for(i = 0;i < Device->NumUpdates;i++)
{
if(SL_RESULT_SUCCESS == result)
{
result = (*bufferQueue)->Enqueue(bufferQueue, data->buffer, data->bufferSize);
PRINTERR(result, "bufferQueue->Enqueue");
}
}
if(SL_RESULT_SUCCESS == result)
{
result = SLObjectItf_GetInterface(data->bufferQueueObject, SL_IID_PLAY, &player);
PRINTERR(result, "bufferQueue->GetInterface");
}
if(SL_RESULT_SUCCESS == result)
{
result = SLPlayItf_SetPlayState(player, SL_PLAYSTATE_PLAYING);
PRINTERR(result, "player->SetPlayState");
}
if(SL_RESULT_SUCCESS != result)
{
if(data->bufferQueueObject != NULL)
SLObjectItf_Destroy(data->bufferQueueObject);
data->bufferQueueObject = NULL;
free(data->buffer);
data->buffer = NULL;
data->bufferSize = 0;
return ALC_FALSE;
}
return ALC_TRUE;
}