ipp_endpoint.c

h323源码

///////////////////////////////////////////////////////////////////
//
// ipp_endpoint.c
//
// handset/endpoint related event handling module for IP phone app
//
// Copyright Netergy Microelectronics  2000, 2001
//
////////////////////////////////////////////////////////////////////
#include "NNstyle.h"
#include <string.h>
#include <stdlib.h>

#include "endpoint.h"
#include "common.h"

////////////////////////////////////////////////////////////////////
// EndPointProcessRedialEvent
//
//  Process redial event: generaqte DTMF tone and dial
////////////////////////////////////////////////////////////////////
ENDPOINT_EVENT EndPointProcessRedialEvent(END_POINT* pEndPoint,
                                          CALL* pCall,
                                          ENDPOINT_EVENT eEvent)
{
  /* handle redial string */
  if (pEndPoint->pszRedialString) {
    if (pEndPoint->pszRedialString[pEndPoint->oRedialStringIndex]) {
      if (eEvent==EVENT_NONE && pEndPoint->dwTimer > REDIALDIGITTIMER) {
        pEndPoint->dwTimer=0;
        if (pEndPoint->oRedialStringIndex>0) {
          /* stop encoding previous tone */
          EndPointEncodeDtmf(pEndPoint,
                             pCall,
                             pEndPoint->pszRedialString[pEndPoint->oRedialStringIndex-1],
                             FALSE);	// stop encoding
        }
        /* start encoding new tone */
        EndPointEncodeDtmf(pEndPoint,
                           pCall,
                           pEndPoint->pszRedialString[pEndPoint->oRedialStringIndex],
                           TRUE);	// start encoding
        eEvent=EndPointEvent(pEndPoint,
                             pEndPoint->pszRedialString[pEndPoint->oRedialStringIndex]);
        EndPointTelephoneEvent(pEndPoint,
                               HANDSET_DTMF_START_EVENT,
                               pEndPoint->pszRedialString[pEndPoint->oRedialStringIndex]);
        EndPointDtmfTone(pEndPoint->wChannel,pEndPoint->pszRedialString[pEndPoint->oRedialStringIndex]
                         + AUDIO_DTMF_KEY_0 - '0',TRUE);
        pEndPoint->oRedialStringIndex++;
      }
    } else {
      /* stop encoding inband DTMF */
      EndPointEncodeDtmf(pEndPoint,
                         pCall,
                         pEndPoint->pszRedialString[pEndPoint->oRedialStringIndex-1],
                         FALSE);	// stop encoding
      free (pEndPoint->pszRedialString);
      pEndPoint->pszRedialString=0;
      pEndPoint->oRedialStringIndex=0;
    }
  }

  return eEvent;
}

////////////////////////////////////////////////////////////////////
// EndPointEncodeDtmf
//
//  Start/stop encoding inband DTMF signalling for keypad input
////////////////////////////////////////////////////////////////////
void EndPointEncodeDtmf(END_POINT *pEndPoint,
                        CALL* pCall,
                        char chKey,
                        BOOL bStart)
{
  if (pCall && g_bSendInbandDTMF) {
    if (chKey=='*') {
      chKey=AUDIO_DTMF_KEY_STAR_CONT;
    } else if (chKey=='#') {
      chKey=AUDIO_DTMF_KEY_POUND_CONT;
    } else {
      chKey=AUDIO_DTMF_KEY_0_CONT+chKey-'0';
    }

#if 0
    /* stop encoding tone */
    EndPointEncodeStreamTone(pEndPoint->wChannel,
                             hStream,
                             (DWORD)(chKey),
                             bStart);
#else /* if 0 */
    MediaStreamChannelUpdEncodeTone(pEndPoint->wChannel, chKey, bStart);
#endif /* if 0 else */
  }
}


////////////////////////////////////////////////////////////////////
// EndPointDisplayCallerID
//
// 
////////////////////////////////////////////////////////////////////
void EndPointDisplayCallerID(END_POINT *pEndPoint,
                             char *pchCallerName, char *pchCallerNumber)
{
  CALLER_ID_INFO xCallerIdInfo;
  
  memset(&xCallerIdInfo, 0, sizeof(CALLER_ID_INFO));
  if (pchCallerNumber) {
    strncpy(xCallerIdInfo.pcCallerNumber,pchCallerNumber,19);
  }
  if (pchCallerName) {
    strncpy(xCallerIdInfo.pcCallerName,pchCallerName,19);
  }
  
  HandsetStoreCallerID(1,&xCallerIdInfo);
  HandsetDisplayCallerID(1,&xCallerIdInfo);
}


////////////////////////////////////////////////////////////////////
// EndPointUpdateHoldIndicator
//
//  correctly represents the existence of held call by examinig call
//  states
////////////////////////////////////////////////////////////////////
void EndPointUpdateHoldIndicator(END_POINT *pEndPoint)
{
  // this function should be better inside handset api, if possible
  if (EndPointFindCallState(pEndPoint, CALL_HOLD)) {
    LEDON(LED_ID_HOLD,LED_COLOR_RED);
  } else {
    LEDOFF(LED_ID_HOLD);
  }
}