timescale.h

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#ifndef _SSTVENC_TIMESCALE_H
#define _SSTVENC_TIMESCALE_H
 
/*
 * © Stuart Longland VK4MSL
 * SPDX-License-Identifier: MIT
 */
 
#include <math.h>
#include <stdint.h>
 
#define SSTVENC_TS_INFINITE          UINT32_MAX
 
#define SSTVENC_TS_UNIT_SECONDS      (0) 
#define SSTVENC_TS_UNIT_MILLISECONDS (1) 
#define SSTVENC_TS_UNIT_MICROSECONDS (2) 
#define SSTVENC_TS_UNIT_NANOSECONDS  (3) 
uint64_t sstvenc_ts_unit_scale(uint8_t unit);
 
uint32_t sstvenc_ts_clamp_samples(uint64_t samples);
 
uint32_t sstvenc_ts_unit_to_samples(double time, uint32_t sample_rate,
                                    uint8_t unit);
 
double   sstvenc_ts_samples_to_unit(uint32_t samples, uint32_t sample_rate,
                                    uint8_t unit);
 
#endif