/***********************************************************************************************************
**函数:SimpleH264SendPacket
**功能:
**输入参数:
**返回值:
***********************************************************************************************************/
int SimpleH264SendPacket(unsigned char *val,uint32_t length)
{
/*
*val:为264的原始数据，包含0x00 0x00 0x00 0x01信息，
*/
int status=0;
uint32_t TimestampIncrement;
uint32_t send_length,valid_len=length-4;
char NALU=val[4],*sendStartAddr=NULL;
#define MAX_STREAM_SLICE 1024
if(SimpleRtpIsActive()!=true)
{
printf("rtp Session is error,%s ,%d\n",__FUNCTION__, __LINE__);
return -1;
}
Rtp_Lock();
TimestampIncrement=sess.GetDefaultTimestampIncrement();
if(valid_len<=MAX_STREAM_SLICE)
{
status = sess.SendPacket((void *)&val[4],valid_len,PLOAD_TYPE,true,DefaultTimestampIncrement);
checkerror(status);
}
else
{
int k=0,l=0,len=valid_len,pos=0;
k=len/MAX_STREAM_SLICE;
l=len%MAX_STREAM_SLICE;
int t=0;
while(t<=k)
{
if(t==0)
{//发送第1包
sendStartAddr=(char *)(val+4);//发送数据的起始地址
sendStartAddr[pos-1]=(NALU&0x60)|28;//FU indicator
sendStartAddr[pos]=(NALU&0x1f)|0x80;//FU header
send_length=MAX_STREAM_SLICE+1;//要发送数据的长度
status = sess.SendPacket(sendStartAddr-1,send_length,PLOAD_TYPE,false,DefaultTimestampIncrement);
checkerror(status);
if(status<0)
{
goto end;
}
pos+=MAX_STREAM_SLICE;
}
else if(k==t&&l!=0)
{//最后一包
sendStartAddr[pos-2]=(NALU&0x60)|28;//FU indicator
sendStartAddr[pos-1]=(NALU&0x1f)|0x40;//FU header
send_length=l+2;//要发送数据的长度
status = sess.SendPacket(sendStartAddr+pos-2,send_length,PLOAD_TYPE,true,0);
checkerror(status);
if(status<0)
{
goto end;
}
pos+=l;
}
else if(t<k&&0!=t)
{//发送第2包-----倒数第2包
if(l==0&&t==k-1)
{
sendStartAddr[pos-2]=(NALU&0x60)|28;//FU indicator
sendStartAddr[pos-1]=(NALU&0x1f)|0x40;//FU header
}
else
{
sendStartAddr[pos-2]=(NALU&0x60)|28;//FU indicator
sendStartAddr[pos-1]=(NALU&0x1f);//FU header
}
send_length=MAX_STREAM_SLICE+2;//要发送数据的长度
status = sess.SendPacket(sendStartAddr+pos-2,send_length,PLOAD_TYPE,false,0);
checkerror(status);
if(status<0)
{
goto end;
}
pos+=MAX_STREAM_SLICE;
}
t++;
}
}
#ifndef RTP_SUPPORT_THREAD
checkerror(status);
#endif
end:
Rtp_UnLock();
return status;
}
