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83 lines
2.5 KiB
83 lines
2.5 KiB
/*
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The mediastreamer library aims at providing modular media processing and I/O
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for linphone, but also for any telephony application.
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Copyright (C) 2001 Simon MORLAT simon.morlat@linphone.org
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "msnosync.h"
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static MSNoSyncClass *ms_nosync_class=NULL;
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void ms_nosync_init(MSNoSync *sync)
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{
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ms_sync_init(MS_SYNC(sync));
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MS_SYNC(sync)->attached_filters=sync->filters;
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memset(sync->filters,0,MSNOSYNC_MAX_FILTERS*sizeof(MSFilter*));
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MS_SYNC(sync)->samples_per_tick=160;
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sync->started=0;
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}
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void ms_nosync_class_init(MSNoSyncClass *klass)
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{
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ms_sync_class_init(MS_SYNC_CLASS(klass));
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MS_SYNC_CLASS(klass)->max_filters=MSNOSYNC_MAX_FILTERS;
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MS_SYNC_CLASS(klass)->synchronize=(MSSyncSyncFunc)ms_nosync_synchronize;
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MS_SYNC_CLASS(klass)->destroy=(MSSyncDestroyFunc)ms_nosync_destroy;
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/* no need to overload these function*/
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MS_SYNC_CLASS(klass)->attach=ms_sync_attach_generic;
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MS_SYNC_CLASS(klass)->detach=ms_sync_detach_generic;
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}
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void ms_nosync_destroy(MSNoSync *nosync)
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{
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g_free(nosync);
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}
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/* the synchronization function that does nothing*/
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void ms_nosync_synchronize(MSNoSync *nosync)
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{
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gint32 time;
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if (nosync->started==0){
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gettimeofday(&nosync->start,NULL);
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nosync->started=1;
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}
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gettimeofday(&nosync->current,NULL);
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MS_SYNC(nosync)->ticks++;
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/* update the time, we are supposed to work at 8000 Hz */
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time=((nosync->current.tv_sec-nosync->start.tv_sec)*1000) +
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((nosync->current.tv_usec-nosync->start.tv_usec)/1000);
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MS_SYNC(nosync)->time=time;
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return;
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}
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MSSync *ms_nosync_new()
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{
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MSNoSync *nosync;
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nosync=g_malloc(sizeof(MSNoSync));
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ms_nosync_init(nosync);
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if (ms_nosync_class==NULL)
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{
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ms_nosync_class=g_new(MSNoSyncClass,1);
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ms_nosync_class_init(ms_nosync_class);
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}
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MS_SYNC(nosync)->klass=MS_SYNC_CLASS(ms_nosync_class);
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return(MS_SYNC(nosync));
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}
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