kopia lustrzana https://github.com/windytan/slowrx
96 wiersze
2.4 KiB
C
96 wiersze
2.4 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <math.h>
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#include <gtk/gtk.h>
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#include <alsa/asoundlib.h>
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#ifdef GPL
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#include <fftw3.h>
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#endif
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#include "common.h"
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gint16 *PcmBuffer = NULL;
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int PcmPointer = 0;
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int MaxPcm = 0;
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guchar *StoredLum = NULL;
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bool *HasSync = NULL;
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double *in = NULL;
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double *out = NULL;
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gshort HedrShift = 0;
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int PWRdBthresh[10] = {-3, -5, -10, -15, -20, -25, -30, -40, -50, -60};
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int SNRdBthresh[10] = {30, 15, 10, 5, 3, 0, -3, -5, -10, -15};
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bool Adaptive = true;
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bool ManualActivated = false;
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bool Abort = false;
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GtkWidget *RxImage = NULL;
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GtkWidget *statusbar = NULL;
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GtkWidget *vugrid = NULL;
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GtkWidget *infolabel = NULL;
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GtkWidget *cardcombo = NULL;
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GtkWidget *modecombo = NULL;
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GtkWidget *togslant = NULL;
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GtkWidget *togsave = NULL;
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GtkWidget *togadapt = NULL;
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GtkWidget *togrx = NULL;
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GtkWidget *togfsk = NULL;
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GtkWidget *btnabort = NULL;
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GtkWidget *btnstart = NULL;
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GtkWidget *manualframe = NULL;
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GtkWidget *shiftspin = NULL;
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GtkWidget *pwrimage = NULL;
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GtkWidget *snrimage = NULL;
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GtkWidget *idlabel = NULL;
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GdkPixbuf *RxPixbuf = NULL;
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GdkPixbuf *DispPixbuf = NULL;
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GdkPixbuf *pixbufPWR = NULL;
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GdkPixbuf *pixbufSNR = NULL;
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GtkListStore *savedstore = NULL;
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snd_pcm_t *pcm_handle = NULL;
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fftw_plan Plan1024 = NULL;
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fftw_plan Plan2048 = NULL;
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// Return the FFT bin index matching the given frequency
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guint GetBin (double Freq, guint FFTLen) {
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return (Freq / 44100 * FFTLen);
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}
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// Clip to [0..255]
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guchar clip (double a) {
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if (a < 0) return 0;
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else if (a > 255) return 255;
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return (guchar)round(a);
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}
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// Convert degrees -> radians
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double deg2rad (double Deg) {
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return (Deg / 180) * M_PI;
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}
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// Quit
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void delete_event() {
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gtk_main_quit ();
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}
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// Transform the NoiseAdapt toggle state into a variable
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void GetAdaptive() {
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Adaptive = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON(togadapt));
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}
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// Manual Start clicked
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void ManualStart() {
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ManualActivated = true;
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}
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// Abort clicked
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void AbortRx() {
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Abort = true;
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}
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