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Use jpegn for JPEG inside documents

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This commit is contained in:
Milan Nikolic
2026-08-24 16:36:41 +02:00
parent b5994ef137
commit 01a205a07e
3 changed files with 9 additions and 3 deletions
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cbconvert_convert.go
+6
View File
@@ -360,6 +360,12 @@ func (c *Converter) imageTransform(img image.Image) image.Image {
// jpegnOptions decodes straight to RGBA with high-quality chroma upsampling.
var jpegnOptions = jpegn.Options{ToRGBA: true, UpsampleMethod: jpegn.CatmullRom}
func init() {
folio.RegisterPictureDecoder("jpeg", "\xff\xd8", func(b []byte) (image.Image, error) {
return jpegn.Decode(bytes.NewReader(b), nil)
})
}
func (c *Converter) imageDecode(reader io.Reader) (image.Image, error) {
br := bufio.NewReader(reader)
go.mod
+1 -1
View File
@@ -7,7 +7,7 @@ require (
github.com/dsoprea/go-png-image-structure v0.0.0-20210512210324-29b889a6093d
github.com/dustin/go-humanize v1.0.1
github.com/fvbommel/sortorder v1.1.0
github.com/gen2brain/folio v0.2.3
github.com/gen2brain/folio v0.2.4
github.com/gen2brain/gav1d v0.2.4
github.com/gen2brain/jxl v0.2.0
github.com/gen2brain/vpx v0.2.1
go.sum
+2 -2
View File
@@ -36,8 +36,8 @@ github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkp
github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
github.com/fvbommel/sortorder v1.1.0 h1:fUmoe+HLsBTctBDoaBwpQo5N+nrCp8g/BjKb/6ZQmYw=
github.com/fvbommel/sortorder v1.1.0/go.mod h1:uk88iVf1ovNn1iLfgUVU2F9o5eO30ui720w+kxuqRs0=
github.com/gen2brain/folio v0.2.3 h1:xsGu0e1S/v7MA2gKZCI12mXYsf0Ov55NpIcBz61seIk=
github.com/gen2brain/folio v0.2.3/go.mod h1:4/PcXfaXIYmW1nwQ4bJeE+aG5ybG58Aw9xrwODXaXII=
github.com/gen2brain/folio v0.2.4 h1:c1eZYBucycynbyF1UkAXC8Zm/NbWMjHQhckDrz5gBWg=
github.com/gen2brain/folio v0.2.4/go.mod h1:4/PcXfaXIYmW1nwQ4bJeE+aG5ybG58Aw9xrwODXaXII=
github.com/gen2brain/gav1d v0.2.4 h1:Fe+Hpvul5I+svHQ1FqWmvgTeNPWYNCulox7pSoY4M+8=
github.com/gen2brain/gav1d v0.2.4/go.mod h1:ReFKjHq7pvRhEk+pgRPAo9gOlcrf51sdzVcAbbX7e0E=
github.com/gen2brain/jpegn v0.6.0 h1:MYVzF8A4Y5GoDNUotAq4uT4dUDQ0yEVYbcw9xFZgKk8=