codecdescriptor.cpp

sip 开源代码 源于novell sip 开源代码 源于novell

/**
 *  Copyright (C) 2004-2005 Savoir-Faire Linux inc.
 *  Author: Yan Morin <[e-mail]>
 *  Author: Laurielle Lea <[e-mail]>
 *                                                                              
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *                                                                              
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *                                                                              
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <iostream>

#include "audiocodec.h"
#include "gsmcodec.h"
#include "alaw.h"
#include "ulaw.h"
#include "codecDescriptor.h"
#ifdef HAVE_SPEEX
 #include "CodecSpeex.h"
#endif

CodecDescriptorMap::CodecDescriptorMap() 
{
  _codecMap[PAYLOAD_CODEC_ALAW] = new Alaw();
  _codecMap[PAYLOAD_CODEC_ULAW] = new Ulaw();
  _codecMap[PAYLOAD_CODEC_GSM] = new Gsm();
#ifdef HAVE_SPEEX
  _codecMap[PAYLOAD_CODEC_SPEEX] = new CodecSpeex(PAYLOAD_CODEC_SPEEX); // TODO: this is a variable payload!
#endif
// theses one are not implemented yet..
//  _codecMap[PAYLOAD_CODEC_ILBC] = Ilbc();
//  _codecMap[PAYLOAD_CODEC_SPEEX] = Speex();
}

AudioCodec*
CodecDescriptorMap::getCodec(CodecType payload)
{
  CodecMap::iterator iter = _codecMap.find(payload);
  if (iter!=_codecMap.end()) {
    return (iter->second);
  }
  return 0;
}

void 
CodecDescriptorMap::setActive(const std::string& officialName) 
{
  CodecMap::iterator iter = _codecMap.begin();
  while(iter!=_codecMap.end()) {
    if (iter->second!=0) {
      if (iter->second->getOfficialName() == officialName) {
        iter->second->setActive(true);
        break;
      }
    }
    iter++;
  }
}