UtlBoolean MprFromMic::doProcessFrame(MpBufPtr inBufs[],
MpBufPtr outBufs[],
int inBufsSize,
int outBufsSize,
UtlBoolean isEnabled,
int samplesPerFrame,
int samplesPerSecond)
{
MpBufPtr out = NULL ;
MpBufferMsg* pMsg;
if (0 == outBufsSize)
{
return FALSE;
}
// Clear the the number of empty frames every 512 frames
mNumFrames++;
if (0 == (mNumFrames & 0x1ff))
{
mNumEmpties = 0;
}
if (isEnabled)
{
// If the microphone queue (holds unprocessed mic data) has more then
// the max_mic_buffers threshold, drain the queue until in range)
OsMsgQ* pMicOutQ;
pMicOutQ = MpMisc.pMicQ;
while (pMicOutQ && MpMisc.max_mic_buffers < pMicOutQ->numMsgs())
{
if (OS_SUCCESS == pMicOutQ->receive((OsMsg*&) pMsg,
OsTime::NO_WAIT))
{
MpBuf_delRef(pMsg->getTag());
MpBuf_delRef(pMsg->getTag(1));
pMsg->releaseMsg();
}
}
if (pMicOutQ && pMicOutQ->numMsgs() <= 0)
{
// osPrintf("MprFromMic: No data available (total frames=%d, starved frames=%d)\n",
// mNumFrames, mNumEmpties);
}
else
{
if (pMicOutQ && OS_SUCCESS == pMicOutQ->receive((OsMsg*&) pMsg,
OsTime::NO_WAIT))
{
out = pMsg->getTag();
pMsg->releaseMsg();
if (NULL != out)
{
#ifdef REAL_SILENCE_DETECTION /* [ */
Sample* shpTmpFrame;
MpBufPtr tpBuf;
int n;
#endif /* REAL_SILENCE_DETECTION ] */
switch(MpBuf_getSpeech(out))
{
case MP_SPEECH_TONE:
break;
case MP_SPEECH_MUTED:
MpBuf_setSpeech(out, MP_SPEECH_SILENT);
break;
default:
#ifdef REAL_SILENCE_DETECTION /* [ */
Sample *shpSamples;
n = MpBuf_getNumSamples(out);
shpSamples = MpBuf_getSamples(out);
tpBuf = MpBuf_getBuf(MpMisc.UcbPool, n, 0, MP_FMT_T12);
assert(NULL != tpBuf);
shpTmpFrame = MpBuf_getSamples(tpBuf);
highpass_filter800(shpSamples, shpTmpFrame, n);
if(0 == speech_detected(shpTmpFrame,n))
{
MpBuf_setSpeech(out, MP_SPEECH_SILENT);
}
else
{
MpBuf_setSpeech(out, MP_SPEECH_ACTIVE);
}
MpBuf_delRef(tpBuf);
#else /* REAL_SILENCE_DETECTION ] [ */
// 24 April 2001 (HZM) I am disabling this because it takes
// too long to recognize the beginning of a talk spurt, and
// causes the bridge mixer to drop the start of each word.
MpBuf_isActiveAudio(out);
#endif /* REAL_SILENCE_DETECTION ] */
break;
}
}
}
}
#ifdef INSERT_SAWTOOTH /* [ */
if (NULL == out)
{
out = MpBuf_getBuf(MpMisc.UcbPool, MpMisc.frameSamples, 0, MP_FMT_T12);
}
MpBuf_insertSawTooth(out);
MpBuf_setSpeech(out, MP_SPEECH_ACTIVE);
#endif /* INSERT_SAWTOOTH ] */
if (s_fnMicDataHook)
{
//
// Allow an external identity to source microphone data. Ideally,
// this should probably become a different resource, but abstracting
// a new CallFlowGraph is a lot of work.
//
if (NULL == out)
{
out = MpBuf_getBuf(MpMisc.UcbPool, MpMisc.frameSamples, 0, MP_FMT_T12);
}
if (NULL != out)
{
int n = 0;
Sample* s = NULL;
s = MpBuf_getSamples(out);
n = MpBuf_getNumSamples(out);
s_fnMicDataHook(n, s) ;
MpBuf_setSpeech(out, MP_SPEECH_UNKNOWN);
MpBuf_isActiveAudio(out);
}
}
if (NULL == out)
{
out = MpBuf_getFgSilence();
}
}
*outBufs = out;
return TRUE;
}
UtlBoolean MprFromMic::doProcessFrame(MpBufPtr inBufs[],
MpBufPtr outBufs[],
int inBufsSize,
int outBufsSize,
UtlBoolean isEnabled,
int samplesPerFrame,
int samplesPerSecond)
{
MpAudioBufPtr out;
MpBufferMsg* pMsg;
// We need one output buffer
if (outBufsSize != 1)
return FALSE;
// Don't waste the time if output is not connected
if (!isOutputConnected(0))
return TRUE;
// One more frame processed
mNumFrames++;
#ifdef RTL_ENABLED
RTL_EVENT("FromMic queue", mpMicQ->numMsgs());
#endif
if (isEnabled)
{
// If the microphone queue (holds unprocessed mic data) has more then
// the max_mic_buffers threshold, drain the queue until in range)
while (mpMicQ && mpMicQ->numMsgs() > MpMisc.max_mic_buffers)
{
if (mpMicQ->receive((OsMsg*&)pMsg, OsTime::NO_WAIT_TIME) == OS_SUCCESS)
{
pMsg->releaseMsg();
osPrintf( "mpMicQ drained. %d msgs in queue now\n"
, mpMicQ->numMsgs());
}
}
if (mpMicQ && mpMicQ->numMsgs() > 0)
{
if (mpMicQ->receive((OsMsg*&)pMsg, OsTime::NO_WAIT_TIME) == OS_SUCCESS)
{
// osPrintf( "mpMicQ->receive() succeed, %d msgs in queue\n"
// , mpMicQ->numMsgs());
out = pMsg->getBuffer();
pMsg->releaseMsg();
}
}
else
{
// osPrintf("MprFromMic: No data available (total frames=%d)\n",
// mNumFrames);
}
#ifdef INSERT_SAWTOOTH /* [ */
if (!out.isValid())
{
out = MpMisc.RawAudioPool->getBuffer();
if (!out.isValid())
return FALSE;
out->setSamplesNumber(MpMisc.frameSamples);
}
MpBuf_insertSawTooth(out);
out->setSpeechType(MP_SPEECH_ACTIVE);
#endif /* INSERT_SAWTOOTH ] */
if (s_fnMicDataHook)
{
//
// Allow an external identity to source microphone data. Ideally,
// this should probably become a different resource, but abstracting
// a new CallFlowGraph is a lot of work.
//
if (!out.isValid())
{
out = MpMisc.RawAudioPool->getBuffer();
if (!out.isValid())
return FALSE;
out->setSamplesNumber(MpMisc.frameSamples);
}
if (out.isValid())
{
int n = 0;
MpAudioSample* s = NULL;
s = out->getSamplesWritePtr();
n = out->getSamplesNumber();
s_fnMicDataHook(n, (short*)s) ;
out->setSpeechType(MP_SPEECH_UNKNOWN);
}
}
if (out.isValid())
{
switch(out->getSpeechType())
{
case MP_SPEECH_TONE:
break;
case MP_SPEECH_MUTED:
out->setSpeechType(MP_SPEECH_SILENT);
break;
default:
{
MpAudioSample* shpTmpFrame;
MpAudioBufPtr tpBuf;
MpAudioSample *shpSamples;
int n = out->getSamplesNumber();
shpSamples = out->getSamplesWritePtr();
tpBuf = MpMisc.RawAudioPool->getBuffer();
if (!out.isValid())
return FALSE;
tpBuf->setSamplesNumber(n);
assert(tpBuf.isValid());
shpTmpFrame = tpBuf->getSamplesWritePtr();
highpass_filter800(shpSamples, shpTmpFrame, n);
out->setSpeechType(speech_detected(shpTmpFrame,n));
}
break;
}
}
}
else
{
out = inBufs[0];
}
outBufs[0] = out;
return TRUE;
}