ZLMediaKit/src/Rtmp/RtmpProtocol.h
2020-04-04 20:30:09 +08:00

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/*
* Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
*
* This file is part of ZLMediaKit(https://github.com/xiongziliang/ZLMediaKit).
*
* Use of this source code is governed by MIT license that can be found in the
* LICENSE file in the root of the source tree. All contributing project authors
* may be found in the AUTHORS file in the root of the source tree.
*/
#ifndef SRC_RTMP_RTMPPROTOCOL_H_
#define SRC_RTMP_RTMPPROTOCOL_H_
#include <memory>
#include <string>
#include <functional>
#include "amf.h"
#include "Rtmp.h"
#include "Util/util.h"
#include "Util/logger.h"
#include "Util/TimeTicker.h"
#include "Network/Socket.h"
#include "Util/ResourcePool.h"
using namespace std;
using namespace toolkit;
namespace mediakit {
class RtmpProtocol {
public:
RtmpProtocol();
virtual ~RtmpProtocol();
//作为客户端发送c0c1等待s0s1s2并且回调
void startClientSession(const function<void()> &cb);
void onParseRtmp(const char *pcRawData,int iSize);
void reset();
protected:
virtual void onSendRawData(const Buffer::Ptr &buffer) = 0;
virtual void onRtmpChunk(RtmpPacket &chunkData) = 0;
virtual void onStreamBegin(uint32_t ui32StreamId){
_ui32StreamId = ui32StreamId;
}
virtual void onStreamEof(uint32_t ui32StreamId){};
virtual void onStreamDry(uint32_t ui32StreamId){};
protected:
void sendAcknowledgement(uint32_t ui32Size);
void sendAcknowledgementSize(uint32_t ui32Size);
void sendPeerBandwidth(uint32_t ui32Size);
void sendChunkSize(uint32_t ui32Size);
void sendPingRequest(uint32_t ui32TimeStamp = ::time(NULL));
void sendPingResponse(uint32_t ui32TimeStamp = ::time(NULL));
void sendSetBufferLength(uint32_t ui32StreamId, uint32_t ui32Length);
void sendUserControl(uint16_t ui16EventType, uint32_t ui32EventData);
void sendUserControl(uint16_t ui16EventType, const string &strEventData);
void sendInvoke(const string &strCmd, const AMFValue &val);
void sendRequest(int iCmd, const string &str);
void sendResponse(int iType, const string &str);
void sendRtmp(uint8_t ui8Type, uint32_t ui32StreamId, const std::string &strBuf, uint32_t ui32TimeStamp, int iChunkID);
void sendRtmp(uint8_t ui8Type, uint32_t ui32StreamId, const Buffer::Ptr &buffer, uint32_t ui32TimeStamp, int iChunkID);
protected:
int _iReqID = 0;
uint32_t _ui32StreamId = STREAM_CONTROL;
int _iNowStreamID = 0;
int _iNowChunkID = 0;
bool _bDataStarted = false;
inline BufferRaw::Ptr obtainBuffer();
inline BufferRaw::Ptr obtainBuffer(const void *data, int len);
//ResourcePool<BufferRaw,MAX_SEND_PKT> _bufferPool;
private:
void handle_S0S1S2(const function<void()> &cb);
void handle_C0C1();
void handle_C1_simple();
#ifdef ENABLE_OPENSSL
void handle_C1_complex();
string get_C1_digest(const uint8_t *ptr,char **digestPos);
string get_C1_key(const uint8_t *ptr);
void check_C1_Digest(const string &digest,const string &data);
void send_complex_S0S1S2(int schemeType,const string &digest);
#endif //ENABLE_OPENSSL
void handle_C2();
void handle_rtmp();
void handle_rtmpChunk(RtmpPacket &chunkData);
private:
////////////ChunkSize////////////
size_t _iChunkLenIn = DEFAULT_CHUNK_LEN;
size_t _iChunkLenOut = DEFAULT_CHUNK_LEN;
////////////Acknowledgement////////////
uint32_t _ui32ByteSent = 0;
uint32_t _ui32LastSent = 0;
uint32_t _ui32WinSize = 0;
///////////PeerBandwidth///////////
uint32_t _ui32Bandwidth = 2500000;
uint8_t _ui8LimitType = 2;
////////////Chunk////////////
unordered_map<int, RtmpPacket> _mapChunkData;
//////////Rtmp parser//////////
string _strRcvBuf;
function<void()> _nextHandle;
};
} /* namespace mediakit */
#endif /* SRC_RTMP_RTMPPROTOCOL_H_ */