lincolng4 / gomdf

ASAM MDF / MF4 (Measurement Data Format) files editor in GoLang

GoMDF - Read and Write ASAM MF4 FILES

Go package for reading ASAM MF4 files.

Installation

⚠️ The package not finalized !!! ⚠️

go get github.com/LincolnG4/GoMDF

Usage

package main

import (
	"fmt"
	"os"

	mf4 "github.com/LincolnG4/GoMDF"
)

func main() {
	file, err := os.Open("sample1.mf4")
	if err != nil {
		panic(err)
	}

	m, err := mf4.ReadFile(file, &mf4.ReadOptions{})
	if err != nil {
		panic(err)
	}


	fmt.Println()
	// Get channel samples
	channels := m.ListAllChannels()

	for _, channel := range channels {
		samples, err := channel.Sample()
		if err != nil {
			panic(err)
		}

		fmt.Println(samples[:10])
	}

	sample, err := m.GetChannelSample(2, "EngTripFuel")
	if err != nil {
		panic(err)
	}
	fmt.Println(sample[:10])
	// Download attachments
	//att := m.GetAttachments()[0]
	//m.SaveAttachmentTo(att, "/PATH/TO/BE/SAVE/")

	// Read Change logs
	// m.ReadChangeLog()
	// Access metadata
	fmt.Println(m.Version())
	fmt.Println("Version ID --> ", m.MdfVersion())
	fmt.Println("Start Time NS --> ", m.GetStartTimeNs())
	fmt.Println("Start StartTimeLT --> ", m.GetStartTimeLT())
	fmt.Println()
	fmt.Println("List Names -->", m.ListAllChannelsNames())
	fmt.Println("Mapped Channels -->", m.MapAllChannels())
}

Features

• Parse MF4 file format and load metadata
• Extract channel sample data
• Support for attachments
• Support for Events
• Access to common metadata fields
• Documentation
• Documentation is available at https://godoc.org/github.com/LincolnG4/GoMDF

Contributing

Pull requests are welcome! Please open any issues.

This provides a high-level overview of how to use the package from Go code along with installation instructions. Let me know if any part of the README explanation could be improved!

References

ASAM MDF
MDF Validator

gomdf's Issues

why readSingleDataBlock and readDataList are private methods

Hi, I am a data engineer in a vehicle company. We use "asammdf" in python to analyze MDF file. I noticed this GO version and try to optimize the processing speed with GO. I found the signal related methods are all private. asammdf in python opened the signal reading methods. Will you consider make it public methods in the future?

my question

Hello, may I ask, is there any sample code for this package?

The mf4.ReadFile method prints the comment by default, is it possible to add a token to control whether it needs to be printed or not?

Excuse me, as you can see above, in command line usage, it is sometimes necessary to keep the output concise.
I see out output function in source mf4/mf4.go at line 75 etc, is it possible to add markers to control the output of these values?