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/*
The mediastreamer library aims at providing modular media processing and I/O
for linphone, but also for any telephony application.
Copyright (C) 2001 Simon MORLAT simon.morlat@linphone.org
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 "msnosync.h"
static MSNoSyncClass *ms_nosync_class=NULL;
void ms_nosync_init(MSNoSync *sync)
{
ms_sync_init(MS_SYNC(sync));
MS_SYNC(sync)->attached_filters=sync->filters;
memset(sync->filters,0,MSNOSYNC_MAX_FILTERS*sizeof(MSFilter*));
MS_SYNC(sync)->samples_per_tick=160;
sync->started=0;
}
void ms_nosync_class_init(MSNoSyncClass *klass)
{
ms_sync_class_init(MS_SYNC_CLASS(klass));
MS_SYNC_CLASS(klass)->max_filters=MSNOSYNC_MAX_FILTERS;
MS_SYNC_CLASS(klass)->synchronize=(MSSyncSyncFunc)ms_nosync_synchronize;
MS_SYNC_CLASS(klass)->destroy=(MSSyncDestroyFunc)ms_nosync_destroy;
/* no need to overload these function*/
MS_SYNC_CLASS(klass)->attach=ms_sync_attach_generic;
MS_SYNC_CLASS(klass)->detach=ms_sync_detach_generic;
}
void ms_nosync_destroy(MSNoSync *nosync)
{
g_free(nosync);
}
/* the synchronization function that does nothing*/
void ms_nosync_synchronize(MSNoSync *nosync)
{
gint32 time;
if (nosync->started==0){
gettimeofday(&nosync->start,NULL);
nosync->started=1;
}
gettimeofday(&nosync->current,NULL);
MS_SYNC(nosync)->ticks++;
/* update the time, we are supposed to work at 8000 Hz */
time=((nosync->current.tv_sec-nosync->start.tv_sec)*1000) +
((nosync->current.tv_usec-nosync->start.tv_usec)/1000);
MS_SYNC(nosync)->time=time;
return;
}
MSSync *ms_nosync_new()
{
MSNoSync *nosync;
nosync=g_malloc(sizeof(MSNoSync));
ms_nosync_init(nosync);
if (ms_nosync_class==NULL)
{
ms_nosync_class=g_new(MSNoSyncClass,1);
ms_nosync_class_init(ms_nosync_class);
}
MS_SYNC(nosync)->klass=MS_SYNC_CLASS(ms_nosync_class);
return(MS_SYNC(nosync));
}
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