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GrAtscFieldSyncDemux.h

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00001 /* -*- c++ -*- */ 00002 /* 00003 * Copyright 2002 Free Software Foundation, Inc. 00004 * 00005 * This file is part of GNU Radio 00006 * 00007 * GNU Radio is free software; you can redistribute it and/or modify 00008 * it under the terms of the GNU General Public License as published by 00009 * the Free Software Foundation; either version 2, or (at your option) 00010 * any later version. 00011 * 00012 * GNU Radio is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 * GNU General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU General Public License 00018 * along with GNU Radio; see the file COPYING. If not, write to 00019 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, 00020 * Boston, MA 02111-1307, USA. 00021 */ 00022 00023 #ifndef _GRATSCFIELDSYNCDEMUX_H_ 00024 #define _GRATSCFIELDSYNCDEMUX_H_ 00025 00026 #include <VrDecimatingSigProc.h> 00027 #include <atsc_types.h> 00028 00036 class GrAtscFieldSyncDemux : public VrDecimatingSigProc<float,atsc_soft_data_segment> { 00037 00038 public: 00039 00040 GrAtscFieldSyncDemux (); 00041 virtual ~GrAtscFieldSyncDemux (); 00042 00043 virtual const char *name () { return "GrAtscFieldSyncDemux"; } 00044 00045 virtual int forecast (VrSampleRange output, 00046 VrSampleRange inputs[]); 00047 00048 virtual int work (VrSampleRange output, void *o[], 00049 VrSampleRange inputs[], void *i[]); 00050 00051 protected: 00052 00053 bool d_locked; 00054 bool d_in_field2; 00055 int d_segment_number; 00056 VrSampleIndex d_next_input; 00057 VrSampleIndex d_lost_index; // diagnostic fluff 00058 }; 00059 00060 #endif // _GRATSCFIELDSYNCDEMUX_H_

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