git.gag.com Git - fw/altos/blob - aoview/aoview_flite.c

   1 /*
   2  * Copyright © 2009 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; version 2 of the License.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  16  */
  17
  18 #include <stdio.h>
  19 #include <flite/flite.h>
  20 #include "aoview.h"
  21
  22 cst_voice *register_cmu_us_kal();
  23 static cst_voice *voice;
  24
  25 static FILE *pipe_write;
  26 static GThread *aoview_flite_thread;
  27
  28 gpointer
  29 aoview_flite_task(gpointer data)
  30 {
  31         FILE            *input = data;
  32         char            line[1024];
  33
  34         while (fgets(line, sizeof (line) - 1, input) != NULL)
  35                 flite_text_to_speech(line, voice, "play");
  36         return NULL;
  37 }
  38
  39 void
  40 aoview_flite_stop(void)
  41 {
  42         int status;
  43         if (pipe_write) {
  44                 fclose(pipe_write);
  45                 pipe_write = NULL;
  46         }
  47         if (aoview_flite_thread) {
  48                 g_thread_join(aoview_flite_thread);
  49                 aoview_flite_thread = NULL;
  50         }
  51 }
  52
  53 FILE *
  54 aoview_flite_start(void)
  55 {
  56         static once;
  57         int     p[2];
  58         GError  *error;
  59         FILE    *pipe_read;
  60
  61         if (!once) {
  62                 flite_init();
  63                 voice = register_cmu_us_kal();
  64                 if (!voice) {
  65                         perror("register voice");
  66                         exit(1);
  67                 }
  68         }
  69         aoview_flite_stop();
  70         pipe(p);
  71         pipe_read = fdopen(p[0], "r");
  72         pipe_write = fdopen(p[1], "w");
  73         g_thread_create(aoview_flite_task, pipe_read, TRUE, &error);
  74         return pipe_write;
  75 }