static MpBufPtr conceal(MpBufPtr prev, int concealed)
{
#ifdef XXX_DEBUG_WINDOZE /* [ */
MpBufPtr ret;
Sample* src;
Sample* dst;
int len;
int halfLen;
int i;
if (NULL == prev) {
ret = MpBuf_getFgSilence();
return ret;
}
len = MpBuf_getNumSamples(prev);
ret = MpBuf_getBuf(MpBuf_getPool(prev), len, 0, MpBuf_getFormat(prev));
src = MpBuf_getSamples(prev);
dst = MpBuf_getSamples(ret);
halfLen = (len + 1) >> 1;
for (i=0; i<halfLen; i++) {
dst[i] = src[len - i];
}
for (i=halfLen; i<len; i++) {
dst[i] = src[i];
}
if (concealed > 2) {
for (i=0; i<len; i++) {
dst[i] = dst[i] >> 1; // attenuate
}
}
return ret;
#else /* DEBUG_WINDOZE ] [ */
return MpBuf_getFgSilence();
#endif /* DEBUG_WINDOZE ] */
}
MpBufPtr MpBuf_allowMods(MpBufPtr b)
{
MpBufPtr t;
if (NULL == b) {
return NULL;
}
if (MpBuf_invalid(b, FALSE, TRUE)) {
Zprintf("MpBuf_allowMod(0x%X): invalid!\n", (int) b, 0,0,0,0,0);
return NULL;
}
if (1 == b->refCnt) {
return b;
}
t = MpBuf_getBuf(b->pPool, MpBuf_getNumSamples(b),
MpBuf_getOffset(b), MpBuf_getFormat(b));
if (NULL == t) {
return NULL;
}
memcpy((void*) MpBuf_getSamples(t),
(void*) MpBuf_getSamples(b),
MpBuf_getByteLen(t));
MpBuf_setOsTC(t, MpBuf_getOsTC(b));
MpBuf_setContentLen(t, MpBuf_getContentLen(b));
MpBuf_delRef(b);
return t;
} /* MpBuf_allowMods */
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 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;
}
OsStatus MpBuf_init(int samplesPerFrame, int numAudioBuffers)
{
LowBufTable = 0xffffffff;
HighBufTable = 0;
#ifdef BUFFER_INSTRUMENTATION /* [ */
spCounterMutex = new OsMutex(OsMutex::Q_PRIORITY);
#endif /* BUFFER_INSTRUMENTATION ] */
MpMisc.UcbPool = MpBufPool_MpBufPool(0,
samplesPerFrame*sizeof(Sample),
numAudioBuffers, 0);
Nprintf("MpBuf_init: MpMisc.UcbPool = 0x%X\n",
(int) MpMisc.UcbPool, 0,0,0,0,0);
if (NULL == MpMisc.UcbPool) {
return OS_NO_MEMORY;
}
MpMisc.DMAPool = MpBufPool_MpBufPool(0,
8*samplesPerFrame*sizeof(Sample),
64, 32);
Nprintf("MpBuf_init: MpMisc.DMAPool = 0x%X\n",
(int) MpMisc.DMAPool, 0,0,0,0,0);
if (NULL == MpMisc.DMAPool) {
return OS_NO_MEMORY;
}
/*************************************************************************/
/*
* 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.
*/
#ifdef N_SPARE_BUFS /* [ */
/* For debugging... get a few buffers and set them aside... */
{
MpBufPtr sb;
int i, j, n;
Sample* dst;
for (i=0; i<N_SPARE_BUFS; i++) {
sb = MpBuf_getBuf(MpMisc.UcbPool, samplesPerFrame, 0, MP_FMT_T12);
if (NULL == sb) {
Zprintf("\n\nMpBuf_init: MpBuf_getBuf failed, quitting!\n\n\n",
0,0,0,0,0,0);
MpBufPool_delete(MpMisc.UcbPool, 1);
MpMisc.UcbPool = NULL;
return OS_LIMIT_REACHED;
}
dst = MpBuf_getSamples(sb);
n = MpBuf_getByteLen(sb) / sizeof(Sample);
MpBuf_setNumSamples(sb, n);
for (j=0; j<n; j++) {
*dst++ = (i<<8) + j;
}
MpBuf_setSpeech(sb, (enum MpBufSpeech) MP_SPEECH_SPARE);
spareBufs[i] = sb;
}
showSpareBufs(0, "MpBuf_Init: ");
}
#endif /* N_SPARE_BUFS ] */
{
MpBufPtr sb;
sb = MpBuf_getBuf(MpMisc.UcbPool, samplesPerFrame, 0, MP_FMT_T12);
if (NULL == sb) {
Zprintf("\n\nMpBuf_init: MpBuf_getBuf failed, quitting!\n\n\n",
0,0,0,0,0,0);
MpBufPool_delete(MpMisc.UcbPool, 1);
MpMisc.UcbPool = NULL;
return OS_LIMIT_REACHED;
}
memset(MpBuf_getSamples(sb), 0, MpBuf_getByteLen(sb));
MpBuf_setSpeech(sb, MP_SPEECH_SILENT);
MpMisc.XXXsilence = sb;
Zprintf("MpBuf_init: MpMisc.silence = 0x%X\n",
(int) MpMisc.XXXsilence, 0,0,0,0,0);
}
/*************************************************************************/
/*
* Go get a DMA 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.
*/
{
MpBufPtr sb;
sb = MpBuf_getBuf(MpMisc.DMAPool, 8*samplesPerFrame, 0, MP_FMT_T12);
if (NULL == sb) {
Zprintf("\n\nMpBuf_init: MpBuf_getBuf failed (DMA), quitting!\n\n\n",
0,0,0,0,0,0);
MpBufPool_delete(MpMisc.DMAPool, 1);
MpMisc.DMAPool = NULL;
return OS_LIMIT_REACHED;
}
memset(MpBuf_getSamples(sb), 0, MpBuf_getByteLen(sb));
MpBuf_setSpeech(sb, MP_SPEECH_SILENT);
MpMisc.XXXlongSilence = sb;
Zprintf("MpBuf_init: MpMisc.longSilence = 0x%X\n",
(int) MpMisc.XXXlongSilence, 0,0,0,0,0);
}
/*************************************************************************/
/*
* generate a buffer called comfort noise buffer. Even though the zero
* initiation is not necessary, we do it as the silence buffer for safety.
*/
{
MpBufPtr cnb;
cnb = MpBuf_getBuf(MpMisc.UcbPool, samplesPerFrame, 0, MP_FMT_T12);
if (NULL == cnb) {
Zprintf("\n\nMpBuf_init: MpBuf_getBuf failed, quitting!\n\n\n",
0,0,0,0,0,0);
MpBufPool_delete(MpMisc.UcbPool, 1);
MpMisc.UcbPool = NULL;
return OS_LIMIT_REACHED;
}
memset(MpBuf_getSamples(cnb), 0, MpBuf_getByteLen(cnb));
MpBuf_setSpeech(cnb, MP_SPEECH_COMFORT_NOISE);
MpMisc.comfortNoise = cnb;
Zprintf("MpBuf_init: MpMisc.comfortNoise = 0x%X\n",
(int) MpMisc.comfortNoise, 0,0,0,0,0);
}
/*************************************************************************/
MpMisc.RtpPool = MpBufPool_MpBufPool(0, NETWORK_MTU, rtpNBufs, 0);
Nprintf("MpBuf_init: MpMisc.RtpPool = 0x%X\n",
(int) MpMisc.RtpPool, 0,0,0,0,0);
if (NULL == MpMisc.RtpPool) {
MpBufPool_delete(MpMisc.UcbPool, 1);
MpMisc.UcbPool = NULL;
return OS_NO_MEMORY;
}
MpMisc.RtcpPool = MpBufPool_MpBufPool(0,
MAX_RTCP_PACKET_LEN, rtcpNBufs, 0);
Nprintf("MpBuf_init: MpMisc.RtcpPool = 0x%X\n",
(int) MpMisc.RtcpPool, 0,0,0,0,0);
if (NULL == MpMisc.RtcpPool) {
MpBufPool_delete(MpMisc.UcbPool, 1);
MpMisc.UcbPool = NULL;
MpBufPool_delete(MpMisc.RtpPool, 1);
MpMisc.RtpPool = NULL;
return OS_NO_MEMORY;
}
return OS_SUCCESS;
}
UtlBoolean MprBridge::doProcessFrame(MpBufPtr inBufs[],
MpBufPtr outBufs[],
int inBufsSize,
int outBufsSize,
UtlBoolean isEnabled,
int samplesPerFrame,
int samplesPerSecond)
{
int i;
int inIdx;
int outIdx;
int n;
int scale;
int inputs;
int N = samplesPerFrame;
MpBufPtr in;
MpBufPtr out;
Sample* input;
Sample* output;
Sample* outstart;
if (0 == outBufsSize) {
Zprintf("MprBridge::doPF: outBufsSize = %d! (inBufsSize=%d)\n",
outBufsSize, inBufsSize, 0,0,0,0);
return FALSE;
}
if (inBufsSize != outBufsSize) {
Zprintf("MprBridge::doPF: outBufsSize(%d) != inBufsSize(%d)\n",
outBufsSize, inBufsSize, 0,0,0,0);
return FALSE;
}
if (0 == inBufsSize)
return FALSE; // no input buffers, not allowed
for (i=0; i < outBufsSize; i++) {
outBufs[i] = NULL;
}
if (!isEnabled)
{ // Disabled. Mix all remote inputs onto local speaker, and copy
// our local microphone to all remote outputs.
// First, count how many contributing inputs
inputs = 0;
for (inIdx=1; inIdx < inBufsSize; inIdx++) {
if (isPortActive(inIdx)) {
if((MpBuf_getSpeech(inBufs[inIdx]) != MP_SPEECH_SILENT) &&
(MpBuf_getSpeech(inBufs[inIdx]) != MP_SPEECH_COMFORT_NOISE))
inputs++;
}
}
if (inputs > 0) {
// Compute a scale factor to renormalize (approximately)
scale = 0;
while (inputs > 1) {
scale++;
inputs = inputs >> 1;
}
out = MpBuf_getBuf(MpMisc.UcbPool, N, 0, MP_FMT_T12);
if (NULL == out) {
Zprintf(
"MprBridge::doPF(line #%d): MpBuf_getBuf() returned NULL!\n",
__LINE__, 0,0,0,0,0);
return FALSE;
}
outstart = MpBuf_getSamples(out);
memset((char *) outstart, 0, N * sizeof(Sample));
for (inIdx=1; inIdx < inBufsSize; inIdx++) {
if (isPortActive(inIdx)) {
output = outstart;
//Mix only non-silent audio
if((MpBuf_getSpeech(inBufs[inIdx]) != MP_SPEECH_COMFORT_NOISE) &&
(MpBuf_getSpeech(inBufs[inIdx]) != MP_SPEECH_SILENT) ) {
input = MpBuf_getSamples(inBufs[inIdx]);
n = min(MpBuf_getNumSamples(inBufs[inIdx]), samplesPerFrame);
for (i=0; i<n; i++) *output++ += (*input++) >> scale;
}
}
}
UtlBoolean MprFromStream::doProcessFrame(MpBufPtr inBufs[],
MpBufPtr outBufs[],
int inBufsSize,
int outBufsSize,
UtlBoolean isEnabled,
int samplesPerFrame,
int samplesPerSecond)
{
UtlBoolean bSentData = FALSE ;
MpBufPtr out = NULL;
Sample *outbuf;
int count;
// Check params for sanity
if (0 == outBufsSize) return FALSE;
*outBufs = NULL;
if (0 == samplesPerFrame) return FALSE;
if (isEnabled)
{
// Get ready to give data
out = MpBuf_getBuf(MpMisc.UcbPool, samplesPerFrame, 0, MP_FMT_T12);
assert(NULL != out);
count = MpBuf_getByteLen(out) / sizeof(Sample);
count = min(samplesPerFrame, count);
MpBuf_setNumSamples(out, count);
if (mpStreamRenderer)
{
mbStreamChange = FALSE ;
if (!mpStreamRenderer->isMarkedPaused())
{
MpBuf_setSpeech(out, MP_SPEECH_TONE);
outbuf = MpBuf_getSamples(out);
if (mpStreamRenderer->getFrame((uint16_t*)outbuf) == OS_SUCCESS)
{
bSentData = TRUE ;
if (mEventState != FeederStreamPlayingEvent)
{
#ifdef MP_STREAM_DEBUG /* [ */
osPrintf("MprFromStream: FeederEvent=FeederStreamPlayingEvent\n") ;
#endif /* MP_STREAM_DEBUG ] */
mEventState = FeederStreamPlayingEvent ;
mpStreamRenderer->fromStreamUpdate(FeederStreamPlayingEvent) ;
}
}
else
{
if ( (mEventState != FeederStreamStoppedEvent) &&
(mEventState != FeederStreamAbortedEvent))
{
#ifdef MP_STREAM_DEBUG /* [ */
osPrintf("MprFromStream: FeederEvent=FeederStreamStoppedEvent\n") ;
#endif /* MP_STREAM_DEBUG ] */
mEventState = FeederStreamStoppedEvent ;
mpStreamRenderer->fromStreamUpdate(FeederStreamStoppedEvent) ;
}
disable();
}
}
else
{
if (mEventState != FeederStreamPausedEvent)
{
#ifdef MP_STREAM_DEBUG /* [ */
osPrintf("MprFromStream: FeederEvent=FeederStreamPausedEvent\n") ;
#endif /* MP_STREAM_DEBUG ] */
mEventState = FeederStreamPausedEvent ;
mpStreamRenderer->fromStreamUpdate(FeederStreamPausedEvent) ;
}
}
}
if (!bSentData)
{
outbuf = MpBuf_getSamples(out);
memset(outbuf, 0, MpBuf_getByteLen(out));
MpBuf_setSpeech(out, MP_SPEECH_SILENT);
}
}
if (NULL == out)
{
out = *inBufs;
*inBufs = NULL;
}
*outBufs = out;
return (TRUE);
}
UtlBoolean MprMixer::doProcessFrame(MpBufPtr inBufs[],
MpBufPtr outBufs[],
int inBufsSize,
int outBufsSize,
UtlBoolean isEnabled,
int samplesPerFrame,
int samplesPerSecond)
{
int i;
int in;
int wgt;
int n;
int N = samplesPerFrame;
MpBufPtr out;
Sample* input;
Sample* output;
Sample* outstart;
if (0 == outBufsSize) return FALSE;
*outBufs = NULL;
if ((0 == mScale) || (0 == inBufsSize)) {
out = MpBuf_getFgSilence();
*outBufs = out;
return TRUE; // scale factors are all zero, or
// no input buffers, return silence
}
if (!isEnabled)
{ // Disabled, return first input
out = *inBufs;
*inBufs = NULL;
if (NULL == out) {
out = MpBuf_getFgSilence();
}
*outBufs = out;
return TRUE;
}
if (1 == mScale) { // must be only one weight != 0, and it is == 1
out = NULL;
for (i=0; i < inBufsSize; i++)
{
if (0 != mWeights[i])
{
out = inBufs[i];
inBufs[i] = NULL;
i = inBufsSize; // all done, exit loop
}
}
if (NULL == out) {
out = MpBuf_getFgSilence();
}
*outBufs = out;
return TRUE; // even if we did not find it (mNWeights > inBufsSize)
}
out = MpBuf_getBuf(MpMisc.UcbPool, N, 0, MP_FMT_T12);
assert(NULL != out);
*outBufs = out;
outstart = MpBuf_getSamples(out);
memset((char *) outstart, 0, N * sizeof(Sample));
for (in=0; in < inBufsSize; in++)
{
wgt = mWeights[in];
if ((NULL != inBufs[in]) && (0 != wgt))
{
output = outstart;
input = MpBuf_getSamples(inBufs[in]);
n = min(MpBuf_getNumSamples(inBufs[in]), samplesPerFrame);
if (1 == wgt)
{
for (i=0; i<n; i++) *output++ += (*input++) / mScale;
}
else
{
for (i=0; i<n; i++) *output++ += (*input++ * wgt) / mScale;
}
}
}
return TRUE;
}
UtlBoolean MprDecode::doProcessFrame(MpBufPtr inBufs[],
MpBufPtr outBufs[],
int inBufsSize,
int outBufsSize,
UtlBoolean isEnabled,
int samplesPerFrame,
int samplesPerSecond)
{
#ifdef DEBUG_DECODING /* [ */
static int numFramesForWarnings = 0;
static int numWarnings = 0;
#endif /* DEBUG_DECODING ] */
MpBufPtr rtp;
MpBufPtr out;
#ifdef DEBUG_DECODING /* [ */
numFramesForWarnings++;
#endif /* DEBUG_DECODING ] */
MpDecoderBase* pCurDec;
Sample* pSamples = NULL;
mFrameCounter++;
if (0 == outBufsSize) return FALSE;
if (!isEnabled) {
mPreloading = 1;
*outBufs = MpBuf_getFgSilence();
return TRUE;
}
{
MprDejitter* pDej = getMyDejitter();
int packetLen;
int pt;
while (NULL != (rtp = pDej->pullPacket())) {
pt = MprDejitter::getPayloadType(rtp);
pCurDec = mpConnection->mapPayloadType(pt);
if (NULL != pCurDec) {
unsigned char* pRtpH;
pRtpH = ((unsigned char*) MpBuf_getStorage(rtp)) + 1;
if (0x80 == (0x80 & *pRtpH)) {
if ((mFrameLastMarkerNotice + MARKER_WAIT_FRAMES) <
mFrameCounter) {
mNumMarkerNotices = 0;
}
if (mNumMarkerNotices++ < MAX_MARKER_NOTICES)
{
// osPrintf("MprDecode: RTP marker bit ON\n");
mFrameLastMarkerNotice = mFrameCounter;
}
}
packetLen = pCurDec->decodeIn(rtp);
if (packetLen > 0) {
pushIntoJitterBuffer(rtp, packetLen);
}
}
MpBuf_delRef(rtp);
}
}
out = MpBuf_getBuf(MpMisc.UcbPool, samplesPerFrame, 0, MP_FMT_T12);
if (out)
{
pSamples = MpBuf_getSamples(out);
memset(pSamples, 0, samplesPerFrame * sizeof(Sample));
MpBuf_setSpeech(out, MP_SPEECH_SILENT);
}
JB_inst* pJBState = mpConnection->getJBinst();
if (pJBState) {
// This should be a JB_something or other. However the only
// current choices is a short or long equivalant and this needs
// to be a plain old int:
int outLen;
int res;
res = JB_RecOut(pJBState, pSamples, &outLen);
MpBuf_setSpeech(out, MP_SPEECH_UNKNOWN);
}
*outBufs = out;
Nprintf("Decode_doPF: returning 0x%p\n", out, 0,0,0,0,0);
return TRUE;
}
