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/*
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "webrtc/system_wrappers/interface/trace.h"
#include "webrtc/voice_engine/dtmf_inband_queue.h"
namespace webrtc {
DtmfInbandQueue::DtmfInbandQueue(int32_t id):
_id(id),
_DtmfCritsect(*CriticalSectionWrapper::CreateCriticalSection()),
_nextEmptyIndex(0)
{
memset(_DtmfKey,0, sizeof(_DtmfKey));
memset(_DtmfLen,0, sizeof(_DtmfLen));
memset(_DtmfLevel,0, sizeof(_DtmfLevel));
}
DtmfInbandQueue::~DtmfInbandQueue()
{
delete &_DtmfCritsect;
}
int
DtmfInbandQueue::AddDtmf(uint8_t key, uint16_t len, uint8_t level)
{
CriticalSectionScoped lock(&_DtmfCritsect);
if (_nextEmptyIndex >= kDtmfInbandMax)
{
WEBRTC_TRACE(kTraceWarning, kTraceVoice, VoEId(_id,-1),
"DtmfInbandQueue::AddDtmf() unable to add Dtmf tone");
return -1;
}
int32_t index = _nextEmptyIndex;
_DtmfKey[index] = key;
_DtmfLen[index] = len;
_DtmfLevel[index] = level;
_nextEmptyIndex++;
return 0;
}
int8_t
DtmfInbandQueue::NextDtmf(uint16_t* len, uint8_t* level)
{
CriticalSectionScoped lock(&_DtmfCritsect);
if(!PendingDtmf())
{
return -1;
}
int8_t nextDtmf = _DtmfKey[0];
*len=_DtmfLen[0];
*level=_DtmfLevel[0];
memmove(&(_DtmfKey[0]), &(_DtmfKey[1]),
_nextEmptyIndex*sizeof(uint8_t));
memmove(&(_DtmfLen[0]), &(_DtmfLen[1]),
_nextEmptyIndex*sizeof(uint16_t));
memmove(&(_DtmfLevel[0]), &(_DtmfLevel[1]),
_nextEmptyIndex*sizeof(uint8_t));
_nextEmptyIndex--;
return nextDtmf;
}
bool
DtmfInbandQueue::PendingDtmf()
{
CriticalSectionScoped lock(&_DtmfCritsect);
return _nextEmptyIndex > 0;
}
void
DtmfInbandQueue::ResetDtmf()
{
CriticalSectionScoped lock(&_DtmfCritsect);
_nextEmptyIndex = 0;
}
} // namespace webrtc
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