Use flite to announce flight state

This uses the flite voice synthesis library from festival to announce
altitude and speed information during the rocket flight.

Signed-off-by: Keith Packard <keithp@keithp.com>

8 files changed, 232 insertions, 2 deletions

diff --git a/aoview/Makefile.am b/aoview/Makefile.am
index be3fbacf..86811bfe 100644
--- a/aoview/Makefile.am
+++ b/aoview/Makefile.am
@@ -1,7 +1,11 @@
 VERSION=$(shell git describe)
-AM_CFLAGS=$(GNOME_CFLAGS) -I$(top_srcdir)/src -DAOVIEW_VERSION=\"$(VERSION)\"
+AM_CFLAGS=$(GNOME_CFLAGS) -I$(top_srcdir)/src -DAOVIEW_VERSION=\"$(VERSION)\" @FLITE_INCS@
 
-bin_PROGRAMS=aoview
+if USE_FLITE
+FLITE_PROG=aoview_flite
+endif
+
+bin_PROGRAMS=aoview $(FLITE_PROG)
 
 aoview_LDADD=$(GNOME_LIBS)
 
@@ -18,8 +22,14 @@ aoview_SOURCES = \
 	aoview_util.c \
 	aoview_file.c \
 	aoview_eeprom.c \
+	aoview_voice.c \
 	aoview.h
 
+aoview_flite_SOURCES = \
+	aoview_flite.c
+
+aoview_flite_LDADD=@FLITE_LIBS@
+
 BUILT_SOURCES = aoview_glade.h
 
 CLEANFILES = aoview_glade.h
diff --git a/aoview/aoview.glade b/aoview/aoview.glade
index f3989999..153db1e3 100644
--- a/aoview/aoview.glade
+++ b/aoview/aoview.glade
@@ -222,6 +222,26 @@
               </widget>
             </child>
             <child>
+              <widget class="GtkMenuItem" id="menuitem6">
+                <property name="visible">True</property>
+                <property name="label" translatable="yes">_Voice</property>
+                <property name="use_underline">True</property>
+                <child>
+                  <widget class="GtkMenu" id="menu6">
+                    <property name="visible">True</property>
+                    <child>
+                      <widget class="GtkCheckMenuItem" id="voice_enable">
+                        <property name="visible">True</property>
+                        <property name="label" translatable="yes">Enable _Voice</property>
+                        <property name="use_underline">True</property>
+                        <property name="active">True</property>
+                      </widget>
+                    </child>
+                  </widget>
+                </child>
+              </widget>
+            </child>
+            <child>
               <widget class="GtkMenuItem" id="menuitem4">
                 <property name="visible">True</property>
                 <property name="label" translatable="yes">_Help</property>
diff --git a/aoview/aoview.h b/aoview/aoview.h
index 6fb5e098..1ad9e160 100644
--- a/aoview/aoview.h
+++ b/aoview/aoview.h
@@ -220,4 +220,11 @@ aoview_eeprom_save(const char *device);
 void
 aoview_eeprom_init(GladeXML *xml);
 
+/* aoview_voice.c */
+void aoview_voice_open(void);
+
+void aoview_voice_close(void);
+
+void aoview_voice_speak(char *format, ...);
+
 #endif /* _AOVIEW_H_ */
diff --git a/aoview/aoview_flite.c b/aoview/aoview_flite.c
new file mode 100644
index 00000000..daa3ed36
--- /dev/null
+++ b/aoview/aoview_flite.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright © 2009 Keith Packard <keithp@keithp.com>
+ *
+ * This program 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; version 2 of the License.
+ *
+ * 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.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#include <stdio.h>
+#include <flite/flite.h>
+
+cst_voice *register_cmu_us_kal();
+
+int
+main(int argc, char **argv)
+{
+	char		line[1024];
+	cst_voice	*v;
+
+	flite_init();
+	v = register_cmu_us_kal();
+	if (!v) {
+		perror("register voice");
+		exit(1);
+	}
+	while (fgets(line, sizeof (line) - 1, stdin) != NULL) {
+		flite_text_to_speech(line, v, "play");
+	}
+	exit (0);
+}
diff --git a/aoview/aoview_main.c b/aoview/aoview_main.c
index 45907519..6833a84a 100644
--- a/aoview/aoview_main.c
+++ b/aoview/aoview_main.c
@@ -77,6 +77,8 @@ int main(int argc, char **argv)
 	assert(about_dialog);
 	gtk_about_dialog_set_version(about_dialog, AOVIEW_VERSION);
 
+	aoview_voice_init(xml);
+
 	aoview_dev_dialog_init(xml);
 
 	aoview_state_init(xml);
diff --git a/aoview/aoview_state.c b/aoview/aoview_state.c
index 52f581ff..13b0f73b 100644
--- a/aoview/aoview_state.c
+++ b/aoview/aoview_state.c
@@ -73,6 +73,55 @@ aoview_state_add_deg(char *label, double deg, char pos, char neg)
 
 }
 
+static char *ascent_states[] = {
+	"boost",
+	"fast",
+	"coast",
+	0,
+};
+
+void
+aoview_state_speak(struct aostate *state)
+{
+	static char	last_state[32];
+	int		i;
+	gboolean	report = FALSE;
+	static time_t	last_time;
+	time_t		this_time;
+	static int	last_altitude;
+	int		this_altitude;
+
+	if (strcmp(state->state, last_state)) {
+		aoview_voice_speak("rocket state now %s\n", state->state);
+		if (!strcmp(state->state, "drogue"))
+			aoview_voice_speak("maximum altitude %d meters\n",
+					   aoview_pres_to_altitude(min_pres) -
+					   aoview_pres_to_altitude(state->ground_pres));
+		report = TRUE;
+		strcpy(last_state, state->state);
+	}
+	this_time = time(NULL);
+	this_altitude = aoview_pres_to_altitude(state->flight_pres) - aoview_pres_to_altitude(state->ground_pres);
+	if (this_time - last_time >= 10)
+		report = TRUE;
+	if (this_altitude / 1000 != last_altitude / 1000)
+		report = TRUE;
+
+	if (report) {
+		aoview_voice_speak("altitude %d meters\n",
+				   this_altitude);
+		for (i = 0; ascent_states[i]; i++)
+			if (!strcmp(ascent_states[i], state->state)) {
+				aoview_voice_speak("speed %d meters per second\n",
+						   state->flight_vel / 2700);
+				break;
+			}
+	}
+
+	last_time = this_time;
+	last_altitude = this_altitude;
+}
+
 void
 aoview_state_notify(struct aostate *state)
 {
@@ -171,6 +220,7 @@ aoview_state_notify(struct aostate *state)
 		aoview_table_add_row("Pad GPS alt", "%gm", pad_alt);
 	}
 	aoview_table_finish();
+	aoview_state_speak(state);
 }
 
 void
@@ -193,4 +243,5 @@ void
 aoview_state_init(GladeXML *xml)
 {
 	aoview_state_new();
+	aoview_voice_speak("initializing rocket flight monitoring system\n");
 }
diff --git a/aoview/aoview_voice.c b/aoview/aoview_voice.c
new file mode 100644
index 00000000..7f4e576e
--- /dev/null
+++ b/aoview/aoview_voice.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright © 2009 Keith Packard <keithp@keithp.com>
+ *
+ * This program 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; version 2 of the License.
+ *
+ * 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.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#include "aoview.h"
+
+#if HAVE_FLITE
+#include <stdarg.h>
+
+FILE	*aoview_flite;
+
+void aoview_voice_open(void)
+{
+	if (!aoview_flite)
+		aoview_flite = popen("aoview_flite", "w");
+}
+
+void aoview_voice_close(void)
+{
+	if (aoview_flite) {
+		pclose(aoview_flite);
+		aoview_flite = NULL;
+	}
+}
+
+void aoview_voice_speak(char *format, ...)
+{
+	va_list	ap;
+
+	if (aoview_flite) {
+		va_start(ap, format);
+		vfprintf(aoview_flite, format, ap);
+		fflush(aoview_flite);
+		va_end(ap);
+	}
+}
+
+#else
+void aoview_voice_open(void)
+{
+}
+
+void aoview_voice_close(void)
+{
+}
+
+void aoview_voice_speak(char *format, ...)
+{
+}
+#endif
+
+
+static GtkCheckMenuItem	*voice_enable;
+
+static void
+aoview_voice_enable(GtkWidget *widget, gpointer data)
+{
+	if (gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(widget))) {
+		aoview_voice_open();
+		aoview_voice_speak("enable voice system\n");
+	} else {
+		aoview_voice_speak("disable voice system\n");
+		aoview_voice_close();
+	}
+}
+
+void
+aoview_voice_init(GladeXML *xml)
+{
+	aoview_voice_open();
+
+	voice_enable = GTK_CHECK_MENU_ITEM(glade_xml_get_widget(xml, "voice_enable"));
+	assert(voice_enable);
+
+	g_signal_connect(G_OBJECT(voice_enable), "toggled",
+			 G_CALLBACK(aoview_voice_enable),
+			 voice_enable);
+}
diff --git a/configure.ac b/configure.ac
index 178a53f4..b2467c3b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -43,6 +43,16 @@ if test "x$GCC" = "xyes"; then
 fi
 AC_SUBST(WARN_CFLAGS)
 
+AC_CHECK_HEADERS(flite/flite.h,HAVE_FLITE_H=yes,HAVE_FLITE_H=no)
+AC_CHECK_LIB(flite, flite_init,HAVE_LIBFLITE=yes,HAVE_LIBFLITE=no,-lm)
+
+if test "x$HAVE_FLITE_H" = "xyes" -a "x$HAVE_LIBFLITE" = "xyes"; then
+	AC_DEFINE(HAVE_FLITE,1,[Define if the flite library is usable])
+	AC_SUBST(FLITE_LIBS,"-lflite_cmu_us_kal -lflite_usenglish -lflite_cmulex -lflite -lm")
+	AC_SUBST(FLITE_INCS,-Iflite)
+fi
+AM_CONDITIONAL(USE_FLITE,test "x$HAVE_FLITE_H" = "xyes" -a "x$HAVE_LIBFLITE" = "xyes")
+
 PKG_CHECK_MODULES([GNOME], [gtk+-2.0 libglade-2.0 gconf-2.0])
 
 PKG_CHECK_MODULES([LIBUSB], [libusb-1.0])