test.c

#define SAF_IMPL
#include "saf.h"

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <math.h>
#include <string.h>

#define SAMPLE_RATE 44100
#define CHANNELS 1
#define BIT_DEPTH 16
#define DURATION_S 1
#define FREQ_HZ 440.0
#define NUM_SAMPLES (SAMPLE_RATE * DURATION_S)
#define PI 3.14159265359

int main(void)
{
    int16_t *original = malloc(NUM_SAMPLES * sizeof(int16_t));
    if (!original)
    {
        fprintf(stderr, "malloc failed\n");
        return 1;
    }

    for (int i = 0; i < NUM_SAMPLES; i++)
        original[i] = (int16_t)(32767.0 * sin(2.0 * PI * FREQ_HZ * i / SAMPLE_RATE));

    SAF_Header header = {SAMPLE_RATE, CHANNELS, BIT_DEPTH};
    SAF_RetCode ret = saf_write("test.saf", header, original, NUM_SAMPLES);
    if (ret != SAF_OK)
    {
        fprintf(stderr, "saf_write failed: %d\n", ret);
        free(original);
        return 1;
    }
    printf("Write OK\n");

    SAF_Header read_header;
    void *samples = NULL;
    size_t sample_count = 0;

    ret = saf_read("test.saf", &read_header, &samples, &sample_count);
    if (ret != SAF_OK)
    {
        fprintf(stderr, "saf_read failed: %d\n", ret);
        free(original);
        return 1;
    }
    printf("Read OK — %zu samples, %u Hz, %u ch, %u bit\n", sample_count, read_header.sample_rate, read_header.channels, read_header.bit_depth);

    if (read_header.sample_rate != SAMPLE_RATE || read_header.channels != CHANNELS || read_header.bit_depth != BIT_DEPTH)
    {
        fprintf(stderr, "Header mismatch\n");
        saf_free(&samples);
        free(original);
        return 1;
    }

    if (sample_count != NUM_SAMPLES)
    {
        fprintf(stderr, "Sample count mismatch: got %zu expected %d\n", sample_count, NUM_SAMPLES);
        saf_free(&samples);
        free(original);
        return 1;
    }

    if (memcmp(original, samples, NUM_SAMPLES * sizeof(int16_t)) != 0)
    {
        fprintf(stderr, "Sample data mismatch\n");
        saf_free(&samples);
        free(original);
        return 1;
    }

    printf("All checks passed\n");

    saf_free(&samples);
    free(original);
    return 0;
}