size_t read_le_s16(FILE *f, int16_t *buf, size_t num)
{
    size_t read = fread(buf, sizeof(buf[0]), num, f);
    unsigned char *ptr = (unsigned char *)buf;
    for(size_t i = 0; i < read; ++i) {
        buf[i] = ptr[0] | ptr[1] << 8;
        ptr += sizeof(buf[0]);
    }
    return read;
}

size_t read_le_u16(struct slv_stream *stream, uint16_t *buf,
                 size_t num)
{
    return read_le_s16(stream, (int16_t *)buf, num);
}