OsStatus mpStartTasks(void)
{
if (OS_SUCCESS != dmaStartup(MpMisc.frameSamples)) {
return OS_TASK_NOT_STARTED;
}
if (OS_SUCCESS != startNetInTask()) {
return OS_TASK_NOT_STARTED;
}
return OS_SUCCESS;
}
// audio buffer grows if there aren't enough buffers
OsStatus mpStartUp()
{
MpMisc.m_audioSamplesPerSec = SAMPLES_PER_SECOND;
MpMisc.m_audioSamplesPerFrame = SAMPLES_PER_FRAME;
// Create buffer for audio data in mediagraph
MpMisc.m_pRawAudioPool = new MpBufPool(MpMisc.m_audioSamplesPerFrame*sizeof(MpAudioSample) + MpArrayBuf::getHeaderSize(),
DEFAULT_INITIAL_AUDIO_BUFFERS);
// Create buffer for audio headers
int audioBuffers = MpMisc.m_pRawAudioPool->getNumBlocks();
MpMisc.m_pAudioHeadersPool = new MpBufPool(sizeof(MpAudioBuf), audioBuffers);
MpAudioBuf::smpDefaultPool = MpMisc.m_pAudioHeadersPool;
/*
* Go get a buffer and fill with silence. We will use this for muting
* either or both of input and output, and whenever we are starved for
* audio data.
*/
MpAudioBufPtr sb = MpMisc.m_pRawAudioPool->getBuffer();
if (!sb.isValid())
{
return OS_FAILED;
}
sb->setSamplesNumber(MpMisc.m_audioSamplesPerFrame);
memset(sb->getSamplesWritePtr(), 0, sb->getSamplesNumber()*sizeof(MpAudioSample));
sb->setSpeechType(MP_SPEECH_SILENT);
MpMisc.m_fgSilence = sb;
// Create buffer for RTP packets
MpMisc.m_pRtpPool = new MpBufPool(RTP_MTU + MpArrayBuf::getHeaderSize(), RTP_BUFS);
// Create buffer for RTCP packets
MpMisc.m_pRtcpPool = new MpBufPool(RTCP_MTU + MpArrayBuf::getHeaderSize(), RTCP_BUFS);
// Create buffer for RTP and RTCP headers
MpMisc.m_pRtpHeadersPool = new MpBufPool(sizeof(MpRtpBuf),
MpMisc.m_pRtpPool->getNumBlocks() + MpMisc.m_pRtcpPool->getNumBlocks());
MpRtpBuf::smpDefaultPool = MpMisc.m_pRtpHeadersPool;
// Create buffer for UDP packets
MpMisc.m_pUdpPool = new MpBufPool(UDP_MTU + MpArrayBuf::getHeaderSize(), UDP_BUFS);
// Create buffer for UDP packet headers
MpMisc.m_pUdpHeadersPool = new MpBufPool(sizeof(MpUdpBuf), MpMisc.m_pUdpPool->getNumBlocks());
MpUdpBuf::smpDefaultPool = MpMisc.m_pUdpHeadersPool;
// create queue for echo canceller
MpMisc.m_pEchoQ = new OsMsgQ(ECHO_BUFFER_Q_LEN);
#ifndef DISABLE_LOCAL_AUDIO
// create audio driver manager, which creates audio driver
if (!MpAudioDriverManager::getInstance(TRUE))
{
return OS_FAILED;
}
#endif
// start media task
if (!MpMediaTask::getMediaTask())
{
return OS_TASK_NOT_STARTED;
}
// start netintask
if (startNetInTask() != OS_SUCCESS)
{
return OS_TASK_NOT_STARTED;
}
return OS_SUCCESS;
}
