112 lines
2.4 KiB
Markdown
112 lines
2.4 KiB
Markdown
# go-avif [](https://travis-ci.org/Kagami/go-avif) [](https://godoc.org/github.com/Kagami/go-avif)
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go-avif implements
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AVIF ([AV1 Still Image File Format](https://aomediacodec.github.io/av1-avif/))
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encoder for Go using libaom, the [high quality](https://github.com/Kagami/av1-bench)
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AV1 codec.
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## Requirements
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Make sure libaom is installed. On typical Linux distro just run:
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```bash
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sudo apt-get install libaom-dev
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```
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## Usage
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To use go-avif in your Go code:
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```go
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import "github.com/Kagami/go-avif"
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```
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To install go-avif in your $GOPATH:
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```bash
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go get github.com/Kagami/go-avif
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```
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For further details see [GoDoc documentation](https://godoc.org/github.com/Kagami/go-avif).
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## Example
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```go
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package main
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import (
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"image"
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_ "image/jpeg"
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"log"
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"os"
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"github.com/Kagami/go-avif"
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)
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func main() {
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if len(os.Args) != 3 {
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log.Fatalf("Usage: %s src.jpg dst.avif", os.Args[0])
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}
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srcPath := os.Args[1]
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src, err := os.Open(srcPath)
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if err != nil {
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log.Fatalf("Can't open sorce file: %v", err)
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}
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dstPath := os.Args[2]
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dst, err := os.Create(dstPath)
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if err != nil {
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log.Fatalf("Can't create destination file: %v", err)
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}
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img, _, err := image.Decode(src)
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if err != nil {
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log.Fatalf("Can't decode source file: %v", err)
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}
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err = avif.Encode(dst, img, nil)
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if err != nil {
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log.Fatalf("Can't encode source image: %v", err)
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}
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log.Printf("Encoded AVIF at %s", dstPath)
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}
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```
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## CLI
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go-avif comes with handy CLI utility `avif`. It supports encoding of JPEG and
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PNG files to AVIF:
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```bash
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# Compile and put avif binary to $GOPATH/bin
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go get github.com/Kagami/go-avif/...
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# Encode JPEG to AVIF with default settings
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avif -e cat.jpg -o kitty.avif
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# Encode PNG with slowest speed
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avif -e dog.png -o doggy.avif --best -q 15
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# Lossless encoding
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avif -e pig.png -o piggy.avif --lossless
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# Show help
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avif -h
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```
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Static 64-bit builds for Windows, macOS and Linux are available at
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[releases page](https://github.com/Kagami/go-avif/releases). They include
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latest libaom from git at the moment of build.
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## Display
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To display resulting AVIF files take a look at software listed
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[here](https://github.com/AOMediaCodec/av1-avif/wiki#demuxers--players). E.g.
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use [avif.js](https://kagami.github.io/avif.js/) web viewer.
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## License
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go-avif is licensed under [CC0](COPYING).
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