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/*
* Oreka -- A media capture and retrieval platform
*
* Copyright (C) 2005, orecx LLC
*
* http://www.orecx.com
*
* This program is free software, distributed under the terms of
* the GNU General Public License.
* Please refer to http://www.gnu.org/copyleft/gpl.html
*
*/
#define _WINSOCKAPI_ // prevents the inclusion of winsock.h
#include "ace/OS_NS_unistd.h"
#include "ace/Singleton.h"
#include "ace/Min_Max.h"
#include "AudioCapturePlugin.h"
#include "AudioCapturePluginCommon.h"
#include "portaudio.h"
#include "Utils.h"
#include "SoundDeviceConfig.h"
extern AudioChunkCallBackFunction g_audioChunkCallBack;
extern CaptureEventCallBackFunction g_captureEventCallBack;
extern OrkLogManager* g_logManager;
SoundDeviceConfigTopObjectRef g_soundDeviceConfigTopObjectRef;
#define DLLCONFIG g_soundDeviceConfigTopObjectRef.get()->m_config
typedef struct
{
PaDeviceID deviceID;
int channelCount;
PortAudioStream* stream;
} DeviceUserData;
int portAudioCallBack(void *inputBuffer, void *outputBuffer, unsigned long framesPerBuffer, PaTimestamp outTime, void *userData)
{
DeviceUserData *device = (DeviceUserData *)userData;
short * inputSamples = (short *)inputBuffer;
CStdString portName;
if (device->channelCount == 2)
{
// stereo -> split into two different chunks
short* rightBuffer = new short[DLLCONFIG.m_audioChunkSize];
short* leftBuffer = new short[DLLCONFIG.m_audioChunkSize];
for (int sampleId=0; sampleId<DLLCONFIG.m_audioChunkSize ; sampleId++)
{
rightBuffer[sampleId] = inputSamples[2*sampleId];
leftBuffer[sampleId] = inputSamples[2*sampleId+1];
}
AudioChunkRef chunkRef(new AudioChunk);
chunkRef->SetBuffer(rightBuffer, sizeof(short)*framesPerBuffer, AudioChunk::PcmAudio);
portName.Format("port%d-%d", device->deviceID, 1);
g_audioChunkCallBack(chunkRef, portName);
chunkRef.reset(new AudioChunk);
chunkRef->SetBuffer(leftBuffer, sizeof(short)*framesPerBuffer, AudioChunk::PcmAudio);
portName.Format("port%d-%d", device->deviceID, 2);
g_audioChunkCallBack(chunkRef, portName);
delete rightBuffer;
delete leftBuffer;
}
else
{
// mono
AudioChunkRef chunkRef(new AudioChunk);
chunkRef->SetBuffer(inputSamples, sizeof(short)*framesPerBuffer, AudioChunk::PcmAudio);
portName.Format("port%d", device->deviceID);
g_audioChunkCallBack(chunkRef, portName);
}
return 0;
}
class SoundDevice
{
public:
SoundDevice();
void Initialize();
void Run();
void StartCapture(CStdString& port);
void StopCapture(CStdString& port);
private:
DeviceUserData** m_devices;
int m_deviceCount;
PaStream* m_stream;
};
typedef ACE_Singleton<SoundDevice, ACE_Thread_Mutex> SoundDeviceSingleton;
SoundDevice::SoundDevice()
{
m_deviceCount = 0;
m_devices = NULL;
}
void Configure(DOMNode* node)
{
if (node)
{
SoundDeviceConfigTopObjectRef soundDeviceConfigTopObjectRef(new SoundDeviceConfigTopObject);
try
{
soundDeviceConfigTopObjectRef.get()->DeSerializeDom(node);
g_soundDeviceConfigTopObjectRef = soundDeviceConfigTopObjectRef;
}
catch (CStdString& e)
{
LOG4CXX_WARN(g_logManager->rootLog, "SoundDevice.dll: " + e + " - using defaults");
}
}
else
{
LOG4CXX_WARN(g_logManager->rootLog, "SoundDevice.dll: got empty DOM tree");
}
}
void SoundDevice::Initialize()
{
LOG4CXX_INFO(g_logManager->rootLog, "Initializing Sound Device plugin");
// create a default config object in case it was not properly initialized by Configure
if(!g_soundDeviceConfigTopObjectRef.get())
{
g_soundDeviceConfigTopObjectRef.reset(new SoundDeviceConfigTopObject);
}
PaError result = Pa_Initialize();
if (result)
{
LOG4CXX_ERROR(g_logManager->rootLog, "Could not initialize Sound Device plugin");
}
m_deviceCount = Pa_CountDevices();
m_devices = new DeviceUserData*[m_deviceCount];
for( PaDeviceID deviceID=0; deviceID<m_deviceCount; deviceID++ )
{
const PaDeviceInfo* deviceInfo = Pa_GetDeviceInfo( deviceID );
m_devices[deviceID] = new DeviceUserData;
m_devices[deviceID]->deviceID = deviceID;
m_devices[deviceID]->channelCount = ace_max(deviceInfo->maxInputChannels,2);
m_devices[deviceID]->stream = NULL;
CStdString deviceName(deviceInfo->name);
if (deviceInfo->maxInputChannels > 0 && deviceName.Find("Primary") == -1) // Primary audio device is a duplicate of one of the devices
{
CStdString capturePorts;
if (deviceInfo->maxInputChannels > 1)
{
capturePorts.Format("port%d-1, port%d-2", deviceID, deviceID); // stereo
}
else
{
capturePorts.Format("port%d-1", deviceID); // mono
}
CStdString maxInputChannelsString = IntToString(deviceInfo->maxInputChannels);
LOG4CXX_INFO(g_logManager->rootLog, "Ports:" + capturePorts + " Name:" + deviceName + " Channels:" + maxInputChannelsString);
result = Pa_OpenStream( &m_devices[deviceID]->stream,
deviceID,
m_devices[deviceID]->channelCount,
paInt16,
NULL,
paNoDevice ,
0,
paInt16,
NULL,
8000.0,
DLLCONFIG.m_audioChunkSize,
0,
0,
portAudioCallBack,
(void*)m_devices[deviceID] );
if (result)
{
CStdString deviceIdString = IntToString(deviceID);
LOG4CXX_ERROR(g_logManager->rootLog, "Device:" + deviceIdString + CStdString(" Pa_OpenStream error:") + Pa_GetErrorText(result));
}
}
}
}
void SoundDevice::Run()
{
for( PaDeviceID deviceID=0; deviceID<m_deviceCount; deviceID++ )
{
if (m_devices[deviceID]->channelCount > 0 && m_devices[deviceID]->stream)
{
PaError result = Pa_StartStream(m_devices[deviceID]->stream);
if (result)
{
CStdString deviceIdString = IntToString(deviceID);
LOG4CXX_ERROR(g_logManager->rootLog, "Device:" + deviceIdString + CStdString(" Pa_StartStream error:") + Pa_GetErrorText(result));
}
}
}
}
void SoundDevice::StartCapture(CStdString& port)
{
CaptureEventRef startEvent(new CaptureEvent);
startEvent->m_type = CaptureEvent::EtStart;
startEvent->m_timestamp = time(NULL);
g_captureEventCallBack(startEvent, port);
}
void SoundDevice::StopCapture(CStdString& port)
{
CaptureEventRef stopEvent(new CaptureEvent);
stopEvent->m_type = CaptureEvent::EtStop;
stopEvent->m_timestamp = time(NULL);
g_captureEventCallBack(stopEvent, port);
}
void __CDECL__ Initialize()
{
SoundDeviceSingleton::instance()->Initialize();
}
void __CDECL__ Run()
{
SoundDeviceSingleton::instance()->Run();
for(;;)
{
// if this idle thread is missing, it will crash winmm
ACE_OS::sleep(5);
}
}
void __CDECL__ StartCapture(CStdString& capturePort)
{
SoundDeviceSingleton::instance()->StartCapture(capturePort);
}
void __CDECL__ StopCapture(CStdString& capturePort)
{
SoundDeviceSingleton::instance()->StopCapture(capturePort);
}
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