t2init.c

h.248源代码

#include "h248app.h"


void _InitializeCodec(char *pchCodecType, OCTET oPayload)
{
  char chParamValue[CONFIG_MAXPARAMLENGTH+1];
  char szCodecON[10];
  char szCodecSS[10];
  char szCodecEC[10];
  char szCodecPACK[10];
  PROTOCOL_CAP* pCap;

  sprintf(szCodecON,   "%sON",   pchCodecType);
  sprintf(szCodecSS,   "%sSS",   pchCodecType);
  sprintf(szCodecEC,   "%sEC",   pchCodecType);
  sprintf(szCodecPACK, "%sPACK", pchCodecType);

  if ((ConfigGetParam(szCodecON, chParamValue, CONFIG_MAXPARAMLENGTH) ==
       CONFIG_OK) && strcmp(chParamValue, "YES") == 0) {
   
    SYSLOG(LOG_INFO, "%s, ", szCodecON);
    pCap = calloc(1,sizeof(PROTOCOL_CAP));

    pCap->eMedia = PROTOCOL_MEDIA_AUDIO;
    pCap->xCmn.oPayload = oPayload;

    if ((ConfigGetParam(szCodecSS, chParamValue, CONFIG_MAXPARAMLENGTH) ==
         CONFIG_OK) && strcmp(chParamValue,"YES") == 0) {
      SYSLOG(LOG_INFO, "%s, ", szCodecSS);
      pCap->u.xAudio.bSilenceSuppression = TRUE;
    }
    else {
      pCap->u.xAudio.bSilenceSuppression = FALSE;
    }

    /*
    if (ConfigGetParam(szCodecEC,chParamValue,CONFIG_MAXPARAMLENGTH)==CONFIG_OK &&
        strcmp(chParamValue,"YES") == 0) {
      SYSLOG(LOG_INFO, "%s, ", szCodecEC);
      pCodec->bEchoCancellation = TRUE;
    } else {
      pCodec->bEchoCancellation = False;
    }
    */

    pCap->u.xAudio.oPacketization = 0;
    if (ConfigGetParam(szCodecPACK, chParamValue, CONFIG_MAXPARAMLENGTH) ==
        CONFIG_OK) {
      if (oPayload == PROTOCOL_RTPPAYLOAD_G723) {
        pCap->u.xAudio.oPacketization = 30;
        SYSLOG(LOG_INFO,
               "Forcing G723 packetization to %d\n ",
               pCap->u.xAudio.oPacketization);
      }
      else if (strlen(chParamValue)) {
        pCap->u.xAudio.oPacketization = (OCTET)strtol(chParamValue, NULL, 0);
        if (pCap->u.xAudio.oPacketization==0) {
          pCap->u.xAudio.oPacketization = 30;
        }
        SYSLOG(LOG_INFO,
               "Packetization = %d\n ",
               pCap->u.xAudio.oPacketization);
      }
    }
    else {
      pCap->u.xAudio.oPacketization = 30;
      SYSLOG(LOG_INFO,
             "Using default packetization %d\n ",
             pCap->u.xAudio.oPacketization);
    }
    if (pCap->u.xAudio.oPacketization == 0)
      pCap->u.xAudio.oPacketization = 30;

    SYSLOG(LOG_INFO,
           "%s packetization = %d\n",
           szCodecPACK,
           pCap->u.xAudio.oPacketization);
    MediaStreamAddCap(pCap);
  }
}


void H248InitResourcesManager(){
  WORD wMaxCC;
  WORD wNumberOfLines = HandsetQueryNumberOfLines();

  if (0 != kodiac[ri_version]) {
    wMaxCC = 2;     /* T2U */
  }
  else {
    wMaxCC = 1;
  }
  
  g_wMaxAvailableResources =
    (wNumberOfLines * 2 - wMaxCC) * 2 * G711_ENCODER_WEIGHT +
    wMaxCC * 2 * COMPLEX_ENCODER_WEIGHT ;
}