bool FisrtLevelBuffer::writeBuffer(char* rtpPacket,int size,long * biggest_id) { //输入是RTP包的数据和长度
//缓冲区溢出，需要补充动态调整缓冲区策略
EnterCriticalSection( &CS);
int emptyPos=findEmptyCell();
if(emptyPos<0) {
//printf("no empty");
LeaveCriticalSection( &CS);
return false;
}
char h264buff[1500];
int sqnum;
int timeStamp;
bool isstart=false;
bool isend=false;
int h264size;
int topSqnum;
unsigned short FrameType;
long id;
h264size=RTP2h264(rtpPacket,size,h264buff,&sqnum,&timeStamp,&isstart,&isend,&FrameType,&id,&topSqnum); //收到的RTP包转成264数据包
if(id < *biggest_id) {
RetransUnit tmpUnit;
tmpUnit.self_sqnum = sqnum;
tmpUnit.self_timestmp = timeStamp;
g_retrans_treator.retransDataArrive(tmpUnit);
}
else {
*biggest_id = id;
}
m_datas[emptyPos].writeData(h264buff,h264size,sqnum,topSqnum,timeStamp,isstart,isend,FrameType,id);
if(!SecondBuffer.writeData(&m_datas[emptyPos])) { //?
//2级缓冲写入失败，删除回滚
//printf("roll back type:%d\n",m_datas[emptyPos].m_FrameType);
m_datas[emptyPos].remove();
}
LeaveCriticalSection( &CS);
return true;
}
bool FisrtLevelBuffer::writeRetran(char* rtpPacket,int size) {
EnterCriticalSection( &CS);
int emptyPos=findEmptyCell();
if(emptyPos<0) {
//printf("no empty");
LeaveCriticalSection( &CS);
return false;
}
char h264buff[1500];
memset(h264buff,0,1500);
int sqnum;
int timeStamp;
bool isstart=false;
bool isend=false;
int h264size;
unsigned short FrameType;
long id;
int topsqnum;
h264size=RTP2h264(rtpPacket,size,h264buff,&sqnum,&timeStamp,&isstart,&isend,&FrameType,&id,&topsqnum);
if(sqnum<0) {
LeaveCriticalSection( &CS);
return true;
}
m_datas[emptyPos].writeData(h264buff,h264size,sqnum,topsqnum,timeStamp,isstart,isend,FrameType,id);
//printf("retran write second buff sqnum:%d timestmp:%d size:%d id:%ld %c\n",sqnum,timeStamp,h264size,id,h264buff[h264size-10]);
if(SecondBuffer.writeRetran(&m_datas[emptyPos])==TIMEOUT) { //?
//printf("retran roll back\n");
m_datas[emptyPos].remove(); //这样就可以删除掉datacell
LeaveCriticalSection( &CS);
return false;
}
LeaveCriticalSection( &CS);
return true;
}
//return true if puzzle is solved
bool Puzzle::solved(){
return (!findEmptyCell());
}
