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jonsd
97b217c26a
espeak_SetSynthCallback() can be called either before or after espeak_Initialize(). git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@31 d46cf337-b52f-0410-862d-fd96e6ae7743
52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
#ifndef EVENT_H
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#define EVENT_H
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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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#include "speak_lib.h"
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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 detailled 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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//
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// Return: EE_OK: operation achieved
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// EE_INTERNAL_ERROR.
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espeak_ERROR event_clear_all ();
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// Declare a future event
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//
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// Return: EE_OK: operation achieved
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// EE_BUFFER_FULL: the event can not be buffered;
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// you may try after a while to call the function again.
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// EE_INTERNAL_ERROR.
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espeak_ERROR 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();
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#endif
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