2f44673d66
BUG=314 Review URL: https://webrtc-codereview.appspot.com/1279007 git-svn-id: http://webrtc.googlecode.com/svn/trunk@3777 4adac7df-926f-26a2-2b94-8c16560cd09d
80 lines
1.8 KiB
C++
80 lines
1.8 KiB
C++
/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "dtmf_queue.h"
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#include <string.h> //memset
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namespace webrtc {
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DTMFqueue::DTMFqueue():
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_DTMFCritsect(CriticalSectionWrapper::CreateCriticalSection()),
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_nextEmptyIndex(0)
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{
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memset(_DTMFKey,0, sizeof(_DTMFKey));
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memset(_DTMFLen,0, sizeof(_DTMFLen));
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memset(_DTMFLevel,0, sizeof(_DTMFLevel));
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}
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DTMFqueue::~DTMFqueue()
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{
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delete _DTMFCritsect;
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}
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int32_t
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DTMFqueue::AddDTMF(uint8_t key, uint16_t len, uint8_t level)
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{
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CriticalSectionScoped lock(_DTMFCritsect);
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if(_nextEmptyIndex >= DTMF_OUTBAND_MAX)
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{
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return -1;
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}
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int32_t index = _nextEmptyIndex;
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_DTMFKey[index] = key;
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_DTMFLen[index] = len;
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_DTMFLevel[index] = level;
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_nextEmptyIndex++;
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return 0;
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}
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int8_t
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DTMFqueue::NextDTMF(uint8_t* DTMFKey, uint16_t* len, uint8_t* level)
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{
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CriticalSectionScoped lock(_DTMFCritsect);
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if(!PendingDTMF())
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{
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return -1;
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}
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*DTMFKey=_DTMFKey[0];
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*len=_DTMFLen[0];
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*level=_DTMFLevel[0];
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memmove(&(_DTMFKey[0]), &(_DTMFKey[1]), _nextEmptyIndex*sizeof(uint8_t));
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memmove(&(_DTMFLen[0]), &(_DTMFLen[1]), _nextEmptyIndex*sizeof(uint16_t));
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memmove(&(_DTMFLevel[0]), &(_DTMFLevel[1]), _nextEmptyIndex*sizeof(uint8_t));
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_nextEmptyIndex--;
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return 0;
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}
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bool
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DTMFqueue::PendingDTMF()
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{
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return(_nextEmptyIndex>0);
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}
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void
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DTMFqueue::ResetDTMF()
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{
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_nextEmptyIndex = 0;
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}
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} // namespace webrtc
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