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/*
The objective of the media_api is to construct and run the necessary processing
on audio and video data flows for a given call (two party call) or conference.
Copyright (C) 2001 Sharath Udupa skuds@gmx.net
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "basiccall.h"
#include "../mediastreamer/mscodec.h"
#define ONESYNC 10
#define MULTISYNC 20
BasicCall *basic_call_new(){
BasicCall *bc = (BasicCall*) g_malloc(sizeof(BasicCall));
api_trace("basic_call_new: creating a basic call");
bc->memberA = call_member_new("memberA");
bc->memberB = call_member_new("memberB");
return bc;
}
CallMember *basic_call_get_member(BasicCall *call, int member_nu){
api_trace("basic_call_get_member: called for %d",member_nu);
if(member_nu == MemberA){
return call->memberA;
}
else if(member_nu == MemberB){
return call->memberB;
}
}
void basic_call_add_flow(BasicCall *call, MediaFlow *flow){
api_trace("basic_call_add_flow: called for %s",flow->id);
call->flows = g_list_append( call->flows, flow);
return 1;
}
int find_mediaflow(gconstpointer llist, gconstpointer flow){
//MediaFlow *mf = (MediaFlow *) ((BasicCallFlow*)llist)->mediaFlow;
if(((MediaFlow*)flow)->id == ((MediaFlow*)llist)->id){
return 0;
}
return 1;
}
int basic_call_start_flow(BasicCall *call, MediaFlow *flow){
int i=0;
int syncFlag=0;
int nFlowDirections;
MSSync *sync;
Members *source, *destination;
FlowDirections *fd;
GList *elem, *selem;
GList *snd_read = NULL, *snd_write = NULL, *filter = NULL;
//Commented by Sharat
//This is initialized in media_api.c
//when should these functions be really called?
//ms_init();
//ortp_init();
api_trace("basic_call_start_flow: called for flow %s", flow->id);
elem = g_list_find_custom( call->flows, flow, &find_mediaflow);
if(elem == NULL){
api_error("basic_call_start_flow: Called for unregistered mediaflow %s", flow->id);
}
nFlowDirections = g_list_length(flow->flowDirections);
if(flow->type == MEDIA_FLOW_VOICE){
syncFlag = ONESYNC;
sync = ms_timer_new();
}
else{
syncFlag = MULTISYNC;
}
for(i=0;i< nFlowDirections; i++){
if(syncFlag == MULTISYNC){
sync = ms_timer_new();
}
fd = (FlowDirections*)g_list_nth_data(flow->flowDirections,i);
source = fd->source;
destination = fd->destination;
media_flow_start_fd(fd, sync);
if(fd->type == MEDIA_FLOW_DUPLEX){
switch(source->tx_endpoint->protocol){
case MEDIA_ALSA:
case MEDIA_OSS:
snd_read = g_list_append(snd_read, fd->recv);
}
switch(destination->rx_endpoint->protocol){
case MEDIA_ALSA:
case MEDIA_OSS:
snd_write = g_list_append(snd_write, fd->play);
}
switch(destination->tx_endpoint->protocol){
case MEDIA_ALSA:
case MEDIA_OSS:
snd_read = g_list_append(snd_read, fd->read);
}
switch(source->rx_endpoint->protocol){
case MEDIA_ALSA:
case MEDIA_OSS:
snd_write = g_list_append(snd_write, fd->send);
}
}
else if(fd->type == MEDIA_FLOW_HALF_DUPLEX){
switch(source->tx_endpoint->protocol){
case MEDIA_ALSA:
case MEDIA_OSS:
snd_read = g_list_append(snd_read, fd->recv);
}
switch(destination->rx_endpoint->protocol){
case MEDIA_ALSA:
case MEDIA_OSS:
snd_write = g_list_append(snd_write, fd->play);
}
}
if(syncFlag == MULTISYNC){
flow->sync = g_list_append(flow->sync, sync);
}
}
if(syncFlag == ONESYNC){
ms_start(sync);
flow->sync = g_list_append(flow->sync, sync);
}
if(syncFlag == MULTISYNC){
selem = flow->sync;
while(selem != NULL){
ms_start(selem->data);
selem = g_list_next(selem);
}
}
filter = snd_read;
while(filter != NULL){
ms_sound_read_start(MS_SOUND_READ((MSFilter*)filter->data));
filter = g_list_next(filter);
}
filter = snd_write;
while(filter != NULL){
ms_sound_write_start(MS_SOUND_WRITE((MSFilter*)filter->data));
filter = g_list_next(filter);
}
return 1;
}
int basic_call_stop_flow(BasicCall *call, MediaFlow *flow){
}
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