https://github.com/chai2010/webp

WebP decoder and encoder for Go (Zero Dependencies).
https://github.com/chai2010/webp

go golang image webp

Last synced: about 13 hours ago
JSON representation

WebP decoder and encoder for Go (Zero Dependencies).

• Host: GitHub
• URL: https://github.com/chai2010/webp
• Owner: chai2010
• License: bsd-3-clause
• Created: 2014-07-29T01:56:55.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2024-06-12T09:12:23.000Z (7 months ago)
• Last Synced: 2024-12-26T09:06:12.280Z (8 days ago)
• Topics: go, golang, image, webp
• Language: Go
• Homepage: http://godoc.org/github.com/chai2010/webp
• Size: 6.05 MB
• Stars: 563
• Watchers: 18
• Forks: 91
• Open Issues: 42
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

        
- *Go语言QQ群: 102319854, 1055927514*

- *凹语言(凹读音“Wa”)(The Wa Programming Language): https://github.com/wa-lang/wa*

----

webp

=====

```

██╗    ██╗███████╗██████╗ ██████╗

██║    ██║██╔════╝██╔══██╗██╔══██╗

██║ █╗ ██║█████╗  ██████╔╝██████╔╝

██║███╗██║██╔══╝  ██╔══██╗██╔═══╝

╚███╔███╔╝███████╗██████╔╝██║

 ╚══╝╚══╝ ╚══════╝╚═════╝ ╚═╝

```

[![Build Status](https://travis-ci.org/chai2010/webp.svg)](https://travis-ci.org/chai2010/webp)

[![GoDoc](https://godoc.org/github.com/chai2010/webp?status.svg)](https://godoc.org/github.com/chai2010/webp)

Benchmark

=========

![](bench/benchmark_result.png)

Install

=======

Install `GCC` or `MinGW` ([download here](http://tdm-gcc.tdragon.net/download)) at first,

and then run these commands:

1. `go get github.com/chai2010/webp`

2. `go run hello.go`

Example

=======

This is a simple example:

```Go

package main

import (

	"bytes"

	"fmt"

	"io/ioutil"

	"log"

	"github.com/chai2010/webp"

)

func main() {

	var buf bytes.Buffer

	var width, height int

	var data []byte

	var err error

	// Load file data

	if data, err = ioutil.ReadFile("./testdata/1_webp_ll.webp"); err != nil {

		log.Println(err)

	}

	// GetInfo

	if width, height, _, err = webp.GetInfo(data); err != nil {

		log.Println(err)

	}

	fmt.Printf("width = %d, height = %d\n", width, height)

	// GetMetadata

	if metadata, err := webp.GetMetadata(data, "ICCP"); err != nil {

		fmt.Printf("Metadata: err = %v\n", err)

	} else {

		fmt.Printf("Metadata: %s\n", string(metadata))

	}

	// Decode webp

	m, err := webp.Decode(bytes.NewReader(data))

	if err != nil {

		log.Println(err)

	}

	// Encode lossless webp

	if err = webp.Encode(&buf, m, &webp.Options{Lossless: true}); err != nil {

		log.Println(err)

	}

	if err = ioutil.WriteFile("output.webp", buf.Bytes(), 0666); err != nil {

		log.Println(err)

	}

    

    fmt.Println("Save output.webp ok")

}

```

Decode and Encode as RGB format:

```Go

m, err := webp.DecodeRGB(data)

if err != nil {

	log.Fatal(err)

}

data, err := webp.EncodeRGB(m)

if err != nil {

	log.Fatal(err)

}

```

Notes

=====

Change the libwebp to fast method:

	internal/libwebp/src/enc/config.c

	WebPConfigInitInternal

	config->method = 0; // 4;

BUGS

====

Report bugs to .

Thanks!