qoi

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)
 }