UtlBoolean MprToneGen::doProcessFrame(MpBufPtr inBufs[],
MpBufPtr outBufs[],
int inBufsSize,
int outBufsSize,
UtlBoolean isEnabled,
int samplesPerFrame,
int samplesPerSecond)
{
MpBufPtr out = NULL;
int16_t *outbuf;
int count;
OsStatus ret;
if (0 == outBufsSize) return FALSE;
*outBufs = NULL;
if (0 == samplesPerFrame) return FALSE;
if (isEnabled) {
out = MpBuf_getBuf(MpMisc.UcbPool, samplesPerFrame, 0, MP_FMT_T12);
assert(NULL != out);
count = min(samplesPerFrame, MpBuf_getNumSamples(out));
MpBuf_setNumSamples(out, count);
outbuf = (int16_t*)MpBuf_getSamples(out);
ret = MpToneGen_getNextBuff(mpToneGenState, outbuf, count);
switch (ret) {
case OS_WAIT_TIMEOUT: /* one-shot tone completed */
((MpCallFlowGraph*)getFlowGraph())->stopTone();
MpBuf_setSpeech(out, MP_SPEECH_TONE);
break;
case OS_NO_MORE_DATA: /* silent */
MpBuf_delRef(out);
out = NULL; // Will replace with silence before returning...
break;
case OS_SUCCESS:
default:
MpBuf_setSpeech(out, MP_SPEECH_TONE);
break;
}
} else {
if (0 < inBufsSize) out = *inBufs;
*inBufs = NULL;
}
if (NULL == out) {
out = MpBuf_getFgSilence();
}
*outBufs = out;
return (NULL != mpToneGenState);
}
UtlBoolean MprToneGen::doProcessFrame(MpBufPtr inBufs[],
MpBufPtr outBufs[],
int inBufsSize,
int outBufsSize,
UtlBoolean isEnabled,
int samplesPerFrame,
int samplesPerSecond)
{
MpAudioBufPtr out;
MpAudioSample *outbuf;
int count;
OsStatus ret;
// We have one output
if (outBufsSize != 1)
return FALSE;
// Don't waste the time if output is not connected
if (!isOutputConnected(0))
return TRUE;
// Avoid division by zero
if (samplesPerFrame == 0)
return FALSE;
if (isEnabled) {
// Get new buffer
out = MpMisc.RawAudioPool->getBuffer();
if (!out.isValid())
return FALSE;
out->setSamplesNumber(samplesPerFrame);
count = out->getSamplesNumber();
// Generate new portion of tone
outbuf = out->getSamplesWritePtr();
ret = MpToneGen_getNextBuff(mpToneGenState, outbuf, count);
// See what we get...
switch (ret) {
case OS_WAIT_TIMEOUT: /* one-shot tone completed */
////////////////////////////////////////////////////////////////////////
// This is the only reason this file needs MpCallFlowGraph.h
if(getFlowGraph()->getType() == MpFlowGraphBase::CALL_FLOWGRAPH)
{
((MpCallFlowGraph*)getFlowGraph())->stopTone();
}
else
////////////////////////////////////////////////////////////////////////
{
MprToneGen::stopTone(*this, *getFlowGraph()->getMsgQ());
}
out->setSpeechType(MP_SPEECH_TONE);
break;
case OS_NO_MORE_DATA: /* silent */
out.release();
break;
case OS_SUCCESS:
default:
out->setSpeechType(MP_SPEECH_TONE);
break;
}
} else {
// If disabled just push input buffer downstream
if (inBufsSize > 0)
out = inBufs[0];
}
// Set output
outBufs[0] = out;
return (mpToneGenState != NULL);
}