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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.
*/
#ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_TMMBR_HELP_H_
#define WEBRTC_MODULES_RTP_RTCP_SOURCE_TMMBR_HELP_H_
#include "typedefs.h"
#include "critical_section_wrapper.h"
#ifndef NULL
#define NULL 0
#endif
namespace webrtc {
class TMMBRSet
{
public:
TMMBRSet();
~TMMBRSet();
void VerifyAndAllocateSet(WebRtc_UWord32 minimumSize);
WebRtc_UWord32* ptrTmmbrSet;
WebRtc_UWord32* ptrPacketOHSet;
WebRtc_UWord32* ptrSsrcSet;
WebRtc_UWord32 sizeOfSet;
WebRtc_UWord32 lengthOfSet;
};
class TMMBRHelp
{
public:
TMMBRHelp();
virtual ~TMMBRHelp();
TMMBRSet* BoundingSet(); // used for debuging
TMMBRSet* CandidateSet();
TMMBRSet* BoundingSetToSend();
TMMBRSet* VerifyAndAllocateCandidateSet(const WebRtc_UWord32 minimumSize);
WebRtc_Word32 FindTMMBRBoundingSet(TMMBRSet*& boundingSet);
WebRtc_Word32 SetTMMBRBoundingSetToSend(
const TMMBRSet* boundingSetToSend,
const WebRtc_UWord32 maxBitrateKbit);
bool IsOwner(const WebRtc_UWord32 ssrc, const WebRtc_UWord32 length) const;
bool CalcMinBitRate(WebRtc_UWord32* minBitrateKbit) const;
protected:
TMMBRSet* VerifyAndAllocateBoundingSet(WebRtc_UWord32 minimumSize);
WebRtc_Word32 VerifyAndAllocateBoundingSetToSend(WebRtc_UWord32 minimumSize);
WebRtc_Word32 FindTMMBRBoundingSet(WebRtc_Word32 numCandidates, TMMBRSet& candidateSet);
private:
CriticalSectionWrapper* _criticalSection;
TMMBRSet _candidateSet;
TMMBRSet _boundingSet;
TMMBRSet _boundingSetToSend;
float* _ptrIntersectionBoundingSet;
float* _ptrMaxPRBoundingSet;
};
} // namespace webrtc
#endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_TMMBR_HELP_H_