mirror of https://github.com/sipwise/sems.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
90 lines
2.4 KiB
90 lines
2.4 KiB
/*
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2002-2003 Fhg Fokus
|
|
*
|
|
* This file is part of sems, a free SIP media server.
|
|
*
|
|
* sems 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.
|
|
*
|
|
* For a license to use the sems software under conditions
|
|
* other than those described here, or to purchase support for this
|
|
* software, please contact iptel.org by e-mail at the following addresses:
|
|
* info@iptel.org
|
|
*
|
|
* sems 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef _MultiPartyMixer_h_
|
|
#define _MultiPartyMixer_h_
|
|
|
|
#include "AmAudio.h"
|
|
#include "AmThread.h"
|
|
#include "SampleArray.h"
|
|
|
|
//#define RORPP_PLC
|
|
|
|
#ifdef RORPP_PLC
|
|
#include "LowcFE.h"
|
|
#endif
|
|
|
|
#include <map>
|
|
using std::map;
|
|
|
|
/**
|
|
* \brief Mixer for one conference.
|
|
*
|
|
* AmMultiPartyMixer mixes the audio from all channels,
|
|
* and returns the audio of all other channels.
|
|
*/
|
|
class AmMultiPartyMixer
|
|
{
|
|
typedef map<int,SampleArrayShort*> ChannelMap;
|
|
//typedef map<int,unsigned int> ChannelOff;
|
|
|
|
ChannelMap channels;
|
|
//ChannelOff ch_offsets;
|
|
//ChannelOff ch_last_ts;
|
|
unsigned int cur_channel_id;
|
|
|
|
SampleArrayInt mixed_channel;
|
|
int scaling_factor;
|
|
int tmp_buffer[AUDIO_BUFFER_SIZE/2];
|
|
|
|
SampleArrayShort* get_channel(unsigned int channel_id);
|
|
|
|
void mix_add(int* dest,int* src1,short* src2,unsigned int size);
|
|
void mix_sub(int* dest,int* src1,short* src2,unsigned int size);
|
|
void scale(short* buffer,int* tmp_buf,unsigned int size);
|
|
|
|
public:
|
|
AmMultiPartyMixer();
|
|
~AmMultiPartyMixer();
|
|
|
|
unsigned int addChannel();
|
|
void removeChannel(unsigned int channel_id);
|
|
|
|
void PutChannelPacket(unsigned int channel_id,
|
|
unsigned int ts,
|
|
unsigned char* buffer,
|
|
unsigned int size);
|
|
|
|
void GetChannelPacket(unsigned int channel,
|
|
unsigned int ts,
|
|
unsigned char* buffer,
|
|
unsigned int size);
|
|
};
|
|
|
|
#endif
|
|
|