#include "common.h"#ifndef NO_VOXPROMPTextern LONG PlayIPAddress(char *, DWORD );extern int _nPlayIPAddr;#endif // NO_VOXPROMPTvoid MediaStreamProcess(){  MEDIA_STREAM *pStream;  if (g_pdllStream == NULL) {    return;  }  MS_LOCK();  DLLIST_head(g_pdllStream);    while ((pStream = DLLIST_read(g_pdllStream))) {    switch (pStream->eType) {    case PROTOCOL_MEDIA_AUDIO:      if (pStream->pTx) {        RTPInstanceTask(((MS_AUDIO*)pStream->pTx)->hRtpInst);      }      if (pStream->pRx) {        RTPInstanceTask(((MS_AUDIO*)pStream->pRx)->hRtpInst);      }      break;#ifdef MEDIASTREAM_T38_SUPPORT    case PROTOCOL_MEDIA_DATA:      if (pStream->pT38) {        MS_T38 *pT38 = pStream->pT38;        int nSocket = pStream->pT38->nSocket;        OCTET sBuf[1024];        LONG lLen;        AUDIO_OOB_SIGNAL xOOB;        struct sockaddr_in sinAddr;        socklen_t sLen = sizeof(struct sockaddr_in);        if (pT38->hTxStream != NULL &&            (lLen = SysBufRead(pT38->hTxStream,                               sBuf, sizeof(sBuf), &xOOB,                               sizeof(AUDIO_OOB_SIGNAL))) > 0) {#ifndef MEDIA_STREAM_PACKET_CONTROL          sendto(nSocket, sBuf, lLen, 0,                 (struct sockaddr *)&(pT38->sinAddr),                  sizeof(struct sockaddr_in));#else          MS_PktCtlPutPkt(pStream, sBuf, lLen, &xOOB);          while (1) {            MS_PACKET *pPkt = MS_PktCtlGetPkt(pStream);            if (pPkt == NULL) {              break;            }            sendto(nSocket, pPkt->pData, pPkt->dwLength, 0,                   (struct sockaddr *)&(pT38->sinAddr),                    sizeof(struct sockaddr_in));            MS_PktCtlFreePkt(pStream, pPkt);          }#endif        }        lLen = recvfrom(nSocket, sBuf, sizeof(sBuf), 0,                        (struct sockaddr *) &sinAddr, &sLen);        if (pT38->hRxStream != NULL && lLen > 0) {          SysBufWrite(pT38->hRxStream, sBuf, lLen,                       &xOOB, sizeof(AUDIO_OOB_SIGNAL));        }      }      break;#endif    default:      break;    }    DLLIST_next(g_pdllStream);  }#ifndef NO_VOXPROMPT  if (_nPlayIPAddr) PlayIPAddress(NULL, FALSE);     // make progress if voxprompt active#endif // NO_VOXPROMPT  MS_UNLOCK();}