--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/spandsp-0.0.6pre17/tests/media_monitor.cpp	Fri Jun 25 15:50:58 2010 +0200
@@ -0,0 +1,321 @@
+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * media_monitor.cpp - Display IP streaming media status, using the FLTK toolkit.
+ *
+ * Written by Steve Underwood <steveu@coppice.org>
+ *
+ * Copyright (C) 2007 Steve Underwood
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program 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 program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id: media_monitor.cpp,v 1.5 2008/09/08 16:10:41 steveu Exp $
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#if defined(HAVE_FL_FL_H)  &&  defined(HAVE_FL_FL_CARTESIAN_H)
+
+#define __STDC_LIMIT_MACROS
+
+#include <inttypes.h>
+#include <stdio.h>
+#include <math.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/select.h>
+
+#include <FL/Fl.H>
+#include <FL/Fl_Overlay_Window.H>
+#include <FL/Fl_Light_Button.H>
+#include <FL/Fl_Cartesian.H>
+#include <FL/fl_draw.H>
+
+#include "spandsp.h"
+#include "media_monitor.h"
+
+struct line_model_monitor_s
+{
+    Fl_Double_Window *w;
+
+    Fl_Group *c_right;
+    Fl_Group *c_sent;
+    Fl_Group *c_received;
+
+    Ca_Canvas *canvas_sent;
+    Ca_X_Axis *sent_x;
+    Ca_Y_Axis *sent_y;
+    Ca_Line *sent_re;
+    double sent_re_plot[1000];
+    double sent_re_plot_min;
+    double sent_re_plot_max;
+
+    Ca_Canvas *canvas_received;
+    Ca_X_Axis *received_x;
+    Ca_Y_Axis *received_y;
+    Ca_Line *received_delays;
+    double received_delays_plot[4000];
+    double received_delays_plot_max;
+    int min_diff;
+    int max_diff;
+
+    int highest_seq_no_seen;
+};
+
+static int skip = 0;
+static struct line_model_monitor_s media;
+static struct line_model_monitor_s *s = &media;
+
+void media_monitor_rx(int seq_no, double departure_time, double arrival_time)
+{
+    double fdiff;
+    int diff;
+    int i;
+
+    if (s->received_delays)
+        delete s->received_delays;
+
+    s->canvas_received->current(s->canvas_received);
+    fdiff = (arrival_time - departure_time)*1000.0;
+    diff = (int) fdiff;
+    if (diff < 0)
+        diff = 0;
+    else if (diff > 1999)
+        diff = 1999;
+    s->received_delays_plot[2*diff + 1]++;
+    if (s->received_delays_plot[2*diff + 1] > s->received_delays_plot_max)
+    {
+        s->received_delays_plot_max = s->received_delays_plot[2*diff + 1];
+        s->received_y->maximum(s->received_delays_plot_max);
+    }
+    if (diff > s->max_diff)
+    {
+        s->max_diff = diff;
+        s->received_x->maximum((double) s->max_diff);
+    }
+    if (diff < s->min_diff)
+    {
+        s->min_diff = diff - 1;
+        s->received_x->minimum((double) s->min_diff);
+    }
+
+    s->received_delays = new Ca_Line(2000, s->received_delays_plot, 0, 0, FL_BLUE, CA_NO_POINT);
+    
+    if (s->sent_re)
+        delete s->sent_re;
+
+    s->canvas_sent->current(s->canvas_sent);
+
+    if (seq_no > s->highest_seq_no_seen + 1)
+    {
+        for (i = s->highest_seq_no_seen + 1;  i < seq_no;  i++)
+            s->sent_re_plot[2*(i%500) + 1] = 0.0;
+    }
+    s->sent_re_plot[2*(seq_no%500) + 1] = fdiff;
+    
+    if (fdiff > s->sent_re_plot_max)
+    {
+        s->sent_re_plot_max = fdiff;
+        s->sent_y->maximum(s->sent_re_plot_max);
+    }
+    if (fdiff < s->sent_re_plot_min)
+    {
+        s->sent_re_plot_min = fdiff - 1.0;
+        s->sent_y->minimum(s->sent_re_plot_min);
+    }
+    s->sent_re = new Ca_Line(500, s->sent_re_plot, 0, 0, FL_BLUE, CA_NO_POINT);
+
+    if (seq_no > s->highest_seq_no_seen)
+        s->highest_seq_no_seen = seq_no;
+
+    if (++skip >= 100)
+    {
+        skip = 0;
+        Fl::check();
+    }
+}
+/*- End of function --------------------------------------------------------*/
+
+int start_media_monitor(void)
+{
+    char buf[132 + 1];
+    float x;
+    float y;
+    int i;
+    int len;
+    
+    len = 128;
+
+    s->w = new Fl_Double_Window(465, 400, "IP streaming media monitor");
+
+    s->c_right = new Fl_Group(0, 0, 465, 405);
+
+    s->c_sent = new Fl_Group(0, 0, 465, 200);
+    s->c_sent->box(FL_DOWN_BOX);
+    s->c_sent->align(FL_ALIGN_TOP | FL_ALIGN_INSIDE);
+    s->c_sent->current();
+
+    s->canvas_sent = new Ca_Canvas(110, 35, 300, 100, "Packet delays");
+    s->canvas_sent->box(FL_PLASTIC_DOWN_BOX);
+    s->canvas_sent->color(7);
+    s->canvas_sent->align(FL_ALIGN_TOP);
+    Fl_Group::current()->resizable(s->canvas_sent);
+    s->canvas_sent->border(15);
+
+    s->sent_x = new Ca_X_Axis(115, 135, 290, 30, "Packet");
+    s->sent_x->align(FL_ALIGN_BOTTOM);
+    s->sent_x->minimum(0.0);
+    s->sent_x->maximum(500.0);
+    s->sent_x->label_format("%g");
+    s->sent_x->minor_grid_color(fl_gray_ramp(20));
+    s->sent_x->major_grid_color(fl_gray_ramp(15));
+    s->sent_x->label_grid_color(fl_gray_ramp(10));
+    s->sent_x->grid_visible(CA_LABEL_GRID | CA_ALWAYS_VISIBLE);
+    s->sent_x->minor_grid_style(FL_DOT);
+    s->sent_x->major_step(5);
+    s->sent_x->label_step(1);
+    s->sent_x->axis_align(CA_BOTTOM | CA_LINE);
+    s->sent_x->axis_color(FL_BLACK);
+    s->sent_x->current();
+
+    s->sent_y = new Ca_Y_Axis(60, 40, 50, 90, "Delay\n(ms)");
+    s->sent_y->align(FL_ALIGN_LEFT);
+    s->sent_y->minimum(0.0);
+    s->sent_y->maximum(2000.0);
+    s->sent_y->minor_grid_color(fl_gray_ramp(20));
+    s->sent_y->major_grid_color(fl_gray_ramp(15));
+    s->sent_y->label_grid_color(fl_gray_ramp(10));
+    s->sent_y->grid_visible(CA_LABEL_GRID | CA_ALWAYS_VISIBLE);
+    s->sent_y->minor_grid_style(FL_DOT);
+    s->sent_y->major_step(5);
+    s->sent_y->label_step(1);
+    s->sent_y->axis_color(FL_BLACK);
+    s->sent_y->current();
+
+    s->c_sent->end();
+
+    s->c_received = new Fl_Group(0, 200, 465, 200);
+    s->c_received->box(FL_DOWN_BOX);
+    s->c_received->align(FL_ALIGN_TOP | FL_ALIGN_INSIDE);
+    s->c_received->current();
+
+    s->canvas_received = new Ca_Canvas(110, 235, 300, 100, "Delay spread");
+    s->canvas_received->box(FL_PLASTIC_DOWN_BOX);
+    s->canvas_received->color(7);
+    s->canvas_received->align(FL_ALIGN_TOP);
+    Fl_Group::current()->resizable(s->canvas_received);
+    s->canvas_received->border(15);
+
+    s->received_x = new Ca_X_Axis(115, 335, 290, 30, "Delay (ms)");
+    s->received_x->align(FL_ALIGN_BOTTOM);
+    s->received_x->minimum(0.0);
+    s->received_x->maximum(2000.0);
+    s->received_x->label_format("%g");
+    s->received_x->minor_grid_color(fl_gray_ramp(20));
+    s->received_x->major_grid_color(fl_gray_ramp(15));
+    s->received_x->label_grid_color(fl_gray_ramp(10));
+    s->received_x->grid_visible(CA_LABEL_GRID | CA_ALWAYS_VISIBLE);
+    s->received_x->minor_grid_style(FL_DOT);
+    s->received_x->major_step(5);
+    s->received_x->label_step(1);
+    s->received_x->axis_align(CA_BOTTOM | CA_LINE);
+    s->received_x->axis_color(FL_BLACK);
+    s->received_x->current();
+
+    s->received_y = new Ca_Y_Axis(60, 240, 50, 90, "Freq");
+    s->received_y->align(FL_ALIGN_LEFT);
+    s->received_y->minimum(0.0);
+    s->received_y->maximum(50.0);
+    s->received_y->minor_grid_color(fl_gray_ramp(20));
+    s->received_y->major_grid_color(fl_gray_ramp(15));
+    s->received_y->label_grid_color(fl_gray_ramp(10));
+    s->received_y->grid_visible(CA_LABEL_GRID | CA_ALWAYS_VISIBLE);
+    s->received_y->minor_grid_style(FL_DOT);
+    s->received_y->major_step(5);
+    s->received_y->label_step(1);
+    s->received_y->axis_color(FL_BLACK);
+    s->received_y->current();
+
+    for (i = 0;  i < 2000;  i++)
+        s->received_delays_plot[2*i] = i;
+    s->received_delays_plot_max = 0.0;
+    s->min_diff = 2000;
+    s->max_diff = 0;
+    
+    s->received_delays = NULL;
+    s->highest_seq_no_seen = -1;
+
+    for (i = 0;  i < 500;  i++)
+        s->sent_re_plot[2*i] = i;
+    s->sent_re_plot_min = 99999.0;
+    s->sent_re_plot_max = 0.0;
+    s->sent_re = NULL;
+
+    s->c_received->end();
+
+    s->c_right->end();
+
+    Fl_Group::current()->resizable(s->c_right);
+    s->w->end();
+    s->w->show();
+
+    Fl::check();
+    return 0;
+}
+/*- End of function --------------------------------------------------------*/
+
+void media_monitor_wait_to_end(void) 
+{
+    fd_set rfds;
+    int res;
+    struct timeval tv;
+
+    fprintf(stderr, "Processing complete.  Press the <enter> key to end\n");
+    do
+    {
+        usleep(100000);
+        Fl::check();
+        FD_ZERO(&rfds);
+        FD_SET(0, &rfds);
+        tv.tv_usec = 100000;
+        tv.tv_sec = 0;
+        res = select(1, &rfds, NULL, NULL, &tv);
+    }
+    while (res <= 0);
+}
+/*- End of function --------------------------------------------------------*/
+
+void media_monitor_update_display(void) 
+{
+    Fl::check();
+    Fl::check();
+    Fl::check();
+    Fl::check();
+    Fl::check();
+    Fl::check();
+    Fl::check();
+    Fl::check();
+    Fl::check();
+    Fl::check();
+    Fl::check();
+    Fl::check();
+}
+/*- End of function --------------------------------------------------------*/
+#endif
+/*- End of file ------------------------------------------------------------*/