#include <stddef.h>

/* Kept as a separately testable DSP primitive. */
void xtc_dsp_gain_process(const float *input, float *output,
                         size_t frame_count, float gain)
{
    size_t frame;

    if (input == NULL || output == NULL) {
        return;
    }
    for (frame = 0U; frame < frame_count; frame++) {
        output[frame] = input[frame] * gain;
    }
}