qoi

README.md

@@ -5,7 +5,7 @@ FFWebP is a command line utility for converting images between multiple formats.
 ## Features
 
 - Pure Go implementation with no external runtime dependencies
-- Supports AVIF, BMP, GIF, ICO, JPEG, JPEGXL, PNG, PNM (PBM/PGM/PPM/PAM), PSD (no encoding), TGA, TIFF, WEBP and XBM
+- Supports AVIF, BMP, GIF, ICO, JPEG, JPEGXL, PNG, PNM (PBM/PGM/PPM/PAM), PSD (no encoding), QOI, TGA, TIFF, WEBP and XBM
 - Lossy or lossless output with configurable quality
 - Output codec selected from the output file extension when `--codec` is omitted
 - Full set of format-specific flags for every supported format (see `ffwebp --help`)

go.mod

@@ -10,6 +10,7 @@ require (
 	github.com/gen2brain/jpegxl v0.4.5
 	github.com/gen2brain/webp v0.5.5
 	github.com/knieriem/g v0.5.0
+	github.com/kriticalflare/qoi v0.0.0-20240815192827-34f66f23bcef
 	github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646
 	github.com/oov/psd v0.0.0-20220121172623-5db5eafcecbb
 	github.com/sergeymakinen/go-ico v1.0.0-beta.0

go.sum

@@ -14,6 +14,8 @@ github.com/gopherjs/gopherjs v1.17.2 h1:fQnZVsXk8uxXIStYb0N4bGk7jeyTalG/wsZjQ25d
 github.com/gopherjs/gopherjs v1.17.2/go.mod h1:pRRIvn/QzFLrKfvEz3qUuEhtE/zLCWfreZ6J5gM2i+k=
 github.com/knieriem/g v0.5.0 h1:0WGfg4rfLD70T5e3SLZ9HtmmLQlRPChoKG15B3dfyqI=
 github.com/knieriem/g v0.5.0/go.mod h1:fhVCOebbqbZTIN+bv0aU/gOAasuZlP0ETeaF4N2553A=
+github.com/kriticalflare/qoi v0.0.0-20240815192827-34f66f23bcef h1:XHb/eK43B8XuqAO5jHILCXzZP3pBamGmn5PcGjTZTuE=
+github.com/kriticalflare/qoi v0.0.0-20240815192827-34f66f23bcef/go.mod h1:skc5Zgfi3XE//1zgGGPC1abynJwsZhFxOiwkCrwL4Z8=
 github.com/lionkov/go9p v0.0.0-20180620135904-0a603dd6808a/go.mod h1:Nbrxd4FljESFB/bUvzT5xm1VNO2VfzMKSIv4L++4J4U=
 github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 h1:zYyBkD/k9seD2A7fsi6Oo2LfFZAehjjQMERAvZLEDnQ=
 github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646/go.mod h1:jpp1/29i3P1S/RLdc7JQKbRpFeM1dOBd8T9ki5s+AY8=

internal/builtins/qoi.go

@@ -0,0 +1,8 @@
+//go:build qoi || full
+// +build qoi full
+
+package builtins
+
+import (
+	_ "github.com/coalaura/ffwebp/internal/codec/qoi"
+)

internal/codec/qoi/qoi.go

@@ -0,0 +1,59 @@
+package qoi
+
+import (
+	"bytes"
+	"image"
+	"io"
+
+	"github.com/kriticalflare/qoi"
+
+	"github.com/coalaura/ffwebp/internal/codec"
+	"github.com/coalaura/ffwebp/internal/opts"
+	"github.com/urfave/cli/v3"
+)
+
+func init() {
+	codec.Register(impl{})
+}
+
+type impl struct{}
+
+func (impl) String() string {
+	return "qoi"
+}
+
+func (impl) Extensions() []string {
+	return []string{"qoi"}
+}
+
+func (impl) CanEncode() bool {
+	return true
+}
+
+func (impl) Flags(flags []cli.Flag) []cli.Flag {
+	return flags
+}
+
+func (impl) Sniff(reader io.ReaderAt) (int, []byte, error) {
+	magic := []byte{'q', 'o', 'i', 'f'}
+
+	buf := make([]byte, 4)
+
+	if _, err := reader.ReadAt(buf, 0); err != nil {
+		return 0, nil, err
+	}
+
+	if bytes.Equal(buf, magic) {
+		return 100, magic, nil
+	}
+
+	return 0, nil, nil
+}
+
+func (impl) Decode(reader io.Reader) (image.Image, error) {
+	return qoi.ImageDecode(reader)
+}
+
+func (impl) Encode(writer io.Writer, img image.Image, _ opts.Common) error {
+	return qoi.ImageEncode(writer, img)
+}

internal/codec/xbm/xbm.go

@@ -56,6 +56,6 @@ func (impl) Decode(r io.Reader) (image.Image, error) {
 	return decode.Decode(r)
 }
 
-func (impl) Encode(w io.Writer, img image.Image, options opts.Common) error {
+func (impl) Encode(w io.Writer, img image.Image, _ opts.Common) error {
 	return xbm.Encode(w, img)
 }