108 lines
3.3 KiB
C++
108 lines
3.3 KiB
C++
/* -*- c++ -*- */
|
|
/*
|
|
* Copyright 2021 gr-tempest
|
|
* Pablo Bertrand <pablo.bertrand@fing.edu.uy>
|
|
* Felipe Carrau <felipe.carrau@fing.edu.uy>
|
|
* Victoria Severi <maria.severi@fing.edu.uy>
|
|
*
|
|
* Instituto de Ingeniería Eléctrica, Facultad de Ingeniería,
|
|
* Universidad de la República, Uruguay.
|
|
*
|
|
* This software is based on Martin Marinov's TempestSDR.
|
|
* In particular, gaussianblur() function is entirely his, and
|
|
* find_best_beta and find_shift are implementations of
|
|
* findbestfit and findthesweetspot, respectively.
|
|
*
|
|
* This 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 3, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This software 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 software; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, Inc., 51 Franklin Street,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef INCLUDED_SYNC_DETECTOR_IMPL_H
|
|
#define INCLUDED_SYNC_DETECTOR_IMPL_H
|
|
|
|
#include <tempest/sync_detector.h>
|
|
|
|
namespace gr {
|
|
namespace tempest {
|
|
|
|
class sync_detector_impl : public sync_detector
|
|
{
|
|
private:
|
|
//Input data
|
|
int d_hdisplay;
|
|
int d_vdisplay;
|
|
int d_hblanking;
|
|
int d_vblanking;
|
|
int d_Htotal;
|
|
int d_Vtotal;
|
|
|
|
//Blanking variables
|
|
int d_blanking_size_h;
|
|
int d_blanking_size_v;
|
|
int d_blanking_index_h;
|
|
int d_blanking_index_v;
|
|
int d_working_index_h;
|
|
|
|
//Flags
|
|
int d_frame_average_complete;
|
|
int d_frame_wait_for_blanking;
|
|
int d_frame_output;
|
|
|
|
|
|
//Counters
|
|
int d_frame_height_counter;
|
|
int d_blanking_wait_counter;
|
|
int d_output_counter;
|
|
|
|
// Control flag, and its mutex
|
|
gr::thread::mutex d_mutex;
|
|
bool d_start_sync_detect;
|
|
|
|
//Arrays
|
|
float * d_data_h;
|
|
float * d_avg_h_line;
|
|
float * d_avg_v_line;
|
|
|
|
//Functions
|
|
void find_best_beta (const float *data, const int total_line_size, const double total_sum, const int blanking_size, double *beta, int *beta_index);
|
|
void find_shift (int *blanking_index, int *blanking_size, float *data, const int total_line_size, int min_blanking_size, double lowpasscoeff);
|
|
void gaussianblur(float * data, int size);
|
|
float calculate_gauss_coeff(float N, float i);
|
|
void set_ena_msg(pmt::pmt_t msg);
|
|
|
|
//Fixed parameters
|
|
float d_LOWPASS_COEFF_V;
|
|
float d_LOWPASS_COEFF_H;
|
|
float d_GAUSSIAN_ALPHA;
|
|
|
|
public:
|
|
sync_detector_impl(int hscreen, int vscreen, int hblanking, int vblanking);
|
|
~sync_detector_impl();
|
|
|
|
// Where all the action really happens
|
|
void forecast (int noutput_items, gr_vector_int &ninput_items_required);
|
|
|
|
int general_work(int noutput_items,
|
|
gr_vector_int &ninput_items,
|
|
gr_vector_const_void_star &input_items,
|
|
gr_vector_void_star &output_items);
|
|
|
|
};
|
|
|
|
} // namespace sync_detector
|
|
} // namespace gr
|
|
|
|
#endif /* INCLUDED_SYNC_DETECTOR_IMPL_H */
|