upnpclient說明文件
一建立搜尋upnp伺服器
upnpdiscover();
(1).建立udp socket
(2).把socket增加多播， 指定多播位址
(3）傳送m-search訊息。
(4)等待讀取ssdp 響應包
二建立客戶端來接收伺服器的圖象資訊
initcapclient()
(1)gclientsocket = socket(pf_inet,sock_stream,0);
wsaasyncselect(gclientsocket, hwndmain,wm_capclient,fd_connect);
gserveraddr.sin_family = af_inet;
gserveraddr.sin_port = htons(transt_port);
gserveraddr.sin_addr.s_un.s_addr = gserverip;
(2)connect(gclientsocket,(struct sockaddr far *)&gserveraddr,sizeof(gserveraddr))//
向伺服器傳送連線
接收執行緒receivethreadproc
while(!endreceivedata)
sleep(1);
continue; }
itimes = 0;
startpos = searchflag(tmpbuf+endnum, sizeof(tmpbuf) - endnum); //
查詢幀開始標誌
if(startpos != -1)
else;
strncpy(strindex, tmpbuf + 15, (temp -15) > 9 ? 9 : (temp-15));
clientindex = atoi(strindex); }
if (strncmp(tmpbuf, "server_disconnect", 17) == 0) //
接收到主機發過來的斷開訊息
endnum += temp; // continue receive data }
} else
memcpy(grecdata + endnum,tmpbuf,temp);//
儲存資料
endnum += temp;
if( endnum < fix_length)
continue; }
else
framesize = framesize - (endnum - fix_length);
while(framesize>0)
continue; }
itimes = 0;
endnum += temp;
framesize-=temp; }
if(framesize<=0)
}//else
}//else
}//while
三、資料解壓縮
(1)初始化解壓縮
gcapdecompresshic = icopen(ictype_video, mmiofourcc('d','i','v','x'),icmode_decompress); //
開啟解碼器
//gcapdecompresshic = icopen(ictype_video, mmiofourcc('d','i','v','x'),icmode_draw);
icdecompressgetformat(gcapdecompresshic, &gdecompressbitin, null);
memset(&gdecompressbitout, 0, sizeof(bitmapinfo));
gdecompressbitout.bmiheader.bisize = sizeof(gdecompressbitin);
icdecompressgetformat(gcapdecompresshic, &gdecompressbitin, &gdecompressbitout)) //
取得解碼後的位圖頭格式
icdecompressbegin(gcapdecompresshic, &gdecompressbitin, &gdecompressbitout) //
啟動解碼器
（2）解壓縮
icdecompress(gcapdecompresshic, icdecompress_hurryup,
…….)
四．回放
setdibitstodevice(
…………)
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