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 */
int MpdGIPSPCMA::decodeIn(MpBufPtr pPacket)
{
int thisLen;
unsigned char* pHeader;
thisLen = MpBuf_getContentLen(pPacket);
pHeader = (unsigned char*)MpBuf_getStorage(pPacket);
if (invalidLen(thisLen, pHeader)) {
/* DISCARD AN ODD LENGTH PACKET */
osPrintf("MpdGIPSPCMU::decodeIn - BAD packet, SEQ#%d,"
" payload is %d bytes\n", MprDejitter::getSeqNum(pPacket), thisLen);
return OS_SUCCESS; /* (nobody cares, don't rock the boat!) */
thisLen = 0;
}
return thisLen;
}
int MpdPtAVT::decodeIn(MpBufPtr pPacket)
{
struct avtPacket* pAvt;
unsigned int samples;
unsigned int ts;
pAvt = (struct avtPacket*) MpBuf_getStorage(pPacket);
dumpRawAvtPacket(pAvt, this);
ts = pAvt->rh.timestamp;
if (-1 != mCurrentToneKey) { // if previous tone still active
if (mCurrentToneSignature != ts) { // and we have not seen this
if (0 != mToneDuration) { // and its duration > 0
OsSysLog::add(FAC_MP, PRI_INFO,
"++++ MpdPtAVT(%p) SYNTHESIZING KEYUP for old key (%d)"
" duration=%d ++++\n", this,
mCurrentToneKey, mToneDuration);
signalKeyUp(pPacket);
}
}
}
// Key Down (start of tone)
if ((0x80 == (0x80 & (pAvt->rh.mpt))) && (ts != mCurrentToneSignature)) {
// start bit marked
OsSysLog::add(FAC_MP, PRI_INFO, "++++ MpdPtAVT(%p) RECEIVED KEYDOWN"
" (marker bit set), duration=%d, TSs: old=0x%08x, new=0x%08x,"
" delta=%d; mCurrentToneKey=%d ++++",
this, mToneDuration, ntohl(mPrevToneSignature), ntohl(ts),
ntohl(ts) - ntohl(mPrevToneSignature), mCurrentToneKey);
signalKeyDown(pPacket);
samples = pAvt->samplesSwapped;
mToneDuration = (ntohs(samples) & 0xffff);
} else if ((mPrevToneSignature != ts) && (-1 == mCurrentToneKey)) {
// key up interpreted as key down if no previous start tone received
OsSysLog::add(FAC_MP, PRI_INFO, "++++ MpdPtAVT(%p) RECEIVED KEYDOWN"
" (lost packets?) duration=%d; TSs: old=0x%08x, new=0x%08x,"
" delta=%d; ++++\n",
this, mToneDuration, ntohl(mPrevToneSignature), ntohl(ts),
ntohl(ts) - ntohl(mPrevToneSignature));
signalKeyDown(pPacket);
samples = pAvt->samplesSwapped;
mToneDuration = (ntohs(samples) & 0xffff);
}
else
{
samples = pAvt->samplesSwapped;
mToneDuration = (ntohs(samples) & 0xffff);
if (mToneDuration && (0x80 != (0x80 & (pAvt->dB))))
{
OsSysLog::add(FAC_MP, PRI_INFO, "++++ MpdPtAVT(%p) RECEIVED packet, not KEYDOWN, set duration to zero"
" duration=%d; TSs: old=0x%08x, new=0x%08x,"
" delta=%d; ++++\n",
this, mToneDuration, ntohl(mPrevToneSignature), ntohl(ts),
ntohl(ts) - ntohl(mPrevToneSignature));
mToneDuration = 0;
}
}
// Key Up (end of tone)
if (0x80 == (0x80 & (pAvt->dB))) {
OsSysLog::add(FAC_MP, PRI_INFO, "++++ MpdPtAVT(%p) RECEIVED KEYUP"
" duration=%d, TS=0x%08x ++++\n", this, mToneDuration, ntohl(ts));
signalKeyUp(pPacket);
}
return MpBuf_getContentLen(pPacket);
}
