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42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
#ifndef WAVE_H
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#define WAVE_H
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#include "stdint.h"
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extern int option_device_number;
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extern void wave_init();
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// TBD: the arg could be "alsa", "oss",...
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extern void* wave_open(char* the_api);
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extern size_t wave_write(void* theHandler, char* theMono16BitsWaveBuffer, size_t theSize);
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extern int wave_close(void* theHandler);
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extern void wave_flush(void* theHandler);
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extern int wave_is_busy(void* theHandler);
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extern void wave_terminate();
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extern uint32_t wave_get_read_position(void* theHandler);
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extern uint32_t wave_get_write_position(void* theHandler);
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// Supply the remaining time in ms before the sample is played
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// (or 0 if the event has been already played).
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// sample: sample identifier
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// time: supplied value in ms
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//
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// return 0 if ok or -1 otherwise (stream not opened).
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extern int wave_get_remaining_time(uint32_t sample, uint32_t* time);
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// set the callback which informs if the output is still enabled.
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// Helpful if a new sample is waiting for free space whereas sound must be stopped.
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typedef int (t_wave_callback)(void);
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extern void wave_set_callback_is_output_enabled(t_wave_callback* cb);
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// general functions
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extern void clock_gettime2(struct timespec *ts);
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extern void add_time_in_ms(struct timespec *ts, int time_in_ms);
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// for tests
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extern void *wave_test_get_write_buffer();
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#endif
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