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76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/*
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* Copyright (C) 2007, Gilles Casse <gcasse@oralux.org>
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* Copyright (C) 2015-2016 Reece H. Dunn
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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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, see: <http://www.gnu.org/licenses/>.
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*/
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/*
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Manage events (sentence, word, mark, end,...), is responsible of calling the external
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callback as soon as the relevant audio sample is played.
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The audio stream is composed of samples from synthetised messages or audio icons.
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Each event is associated to a sample.
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Scenario:
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- event_declare is called for each expected event.
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- A timeout is started for the first pending event.
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- When the timeout happens, the synth_callback is called.
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Note: the timeout is checked against the real progress of the audio stream, which depends on pauses or underruns. If the real progress is lower than the expected one, a new timeout starts.
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*/
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#ifndef ESPEAK_NG_EVENT_H
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#define ESPEAK_NG_EVENT_H
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#include <espeak-ng/espeak_ng.h>
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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// Initialize the event component.
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// First function to be called.
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// the callback will be called when the event actually occurs.
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// The callback is detailed in speak_lib.h .
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void event_init(void);
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void event_set_callback(t_espeak_callback *cb);
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// Clear any pending event.
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espeak_ng_STATUS event_clear_all(void);
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// Declare a future event
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espeak_ng_STATUS event_declare(espeak_EVENT *event);
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// Terminate the event component.
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// Last function to be called.
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void event_terminate(void);
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// general functions
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struct timespec;
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void clock_gettime2(struct timespec *ts);
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void add_time_in_ms(struct timespec *ts, int time_in_ms);
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#ifdef __cplusplus
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}
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#endif
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#endif
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