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/**
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* Navit, a modular navigation system.
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* Copyright (C) 2005-2008 Navit Team
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <glib.h>
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#include <string.h>
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#include "debug.h"
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#include "item.h"
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#include "speech.h"
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#include "plugin.h"
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#include "navit.h"
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struct speech
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{
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struct speech_priv *priv;
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struct speech_methods meth;
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struct attr **attrs;
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};
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struct speech *
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speech_new(struct attr *parent, struct attr **attrs)
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{
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struct speech *this_;
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struct speech_priv *(*speech_new)(struct speech_methods *meth, struct attr **attrs, struct attr *parent);
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struct attr *attr;
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attr=attr_search(attrs, NULL, attr_type);
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if (! attr)
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{
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dbg(0,"type missing\n");
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return NULL;
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}
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dbg(1,"type='%s'\n", attr->u.str);
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#ifdef PLUGSSS
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speech_new=plugin_get_speech_type(attr->u.str);
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dbg(1,"new=%p\n", speech_new);
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if (! speech_new)
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{
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dbg(0,"wrong type '%s'\n", attr->u.str);
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return NULL;
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}
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#endif
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this_=g_new0(struct speech, 1);
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#ifdef PLUGSSS
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this_->priv=speech_new(&this_->meth, attrs, parent);
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#else
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this_->priv = speech_android_new(&this_->meth, attrs, parent);
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#endif
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this_->attrs=attr_list_dup(attrs);
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dbg(1, "say=%p\n", this_->meth.say);
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dbg(1,"priv=%p\n", this_->priv);
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if (! this_->priv)
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{
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attr_list_free(this_->attrs);
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g_free(this_);
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return NULL;
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}
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dbg(1,"return %p\n", this_);
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return this_;
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}
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void
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speech_destroy(struct speech *this_)
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{
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this_->meth.destroy(this_->priv);
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attr_list_free(this_->attrs);
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g_free(this_);
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}
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int
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speech_say(struct speech *this_, const char *text)
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{
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debug_get_timestamp_millis(&global_last_spoken);
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return (this_->meth.say)(this_->priv, text);
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}
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/**
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* @brief Gets an attribute from a speech plugin
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*
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* @param this_ The speech plugin the attribute should be read from
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* @param type The type of the attribute to be read
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* @param attr Pointer to an attrib-structure where the attribute should be written to
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* @param iter (NOT IMPLEMENTED) Used to iterate through all attributes of a type. Set this to NULL to get the first attribute, set this to an attr_iter to get the next attribute
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* @return True if the attribute type was found, false if not
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*/
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int
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speech_get_attr(struct speech *this_, enum attr_type type, struct attr *attr, struct attr_iter *iter)
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{
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return attr_generic_get_attr(this_->attrs, NULL, type, attr, iter);
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}
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/**
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* @brief Tries to estimate how long it will take to speak a certain string
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*
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* This function tries to estimate how long it will take to speak a certain string
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* passed in str. It relies on the "characters per second"-value passed from the
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* configuration.
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*
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* @param this_ The speech whose speed should be used
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* @param str The string that should be estimated
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* @return Time in tenth of seconds or -1 on error
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*/
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int
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speech_estimate_duration(struct speech *this_, char *str)
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{
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int count;
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struct attr cps_attr;
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count = strlen(str);
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if (!speech_get_attr(this_, attr_cps, &cps_attr, NULL))
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{
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// just assume 15 char/sec spoken speed
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// dbg(0 , "SP_CPS:(default)%d\n", 15);
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return (count * 10) / 15;
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}
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// dbg(0 , "SP_CPS:%d\n", cps_attr.u.num);
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return (count * 10) / cps_attr.u.num;
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}
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/**
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* @brief Sets an attribute from an speech plugin
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*
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* This sets an attribute of a speech plugin, overwriting an attribute of the same type if it
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* already exists. This function also calls all the callbacks that are registred
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* to be called when attributes change.
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*
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* @param this_ The speech plugin to set the attribute of
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* @param attr The attribute to set
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* @return True if the attr could be set, false otherwise
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*/
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int
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speech_set_attr(struct speech *this_, struct attr *attr)
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{
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this_->attrs=attr_generic_set_attr(this_->attrs, attr);
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//callback_list_call_attr_2(this_->attr_cbl, attr->type, this_, attr);
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return 1;
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}
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