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Feat: Expose export params #382

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merged 2 commits into from
Sep 26, 2023
Merged

Feat: Expose export params #382

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4906f03
Feat: Expose export params
chakflying Jul 27, 2023
97d6c2c
Refactor: Remove ExportParams type
chakflying Sep 26, 2023
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36 changes: 31 additions & 5 deletions vips/process.go
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Original file line number Diff line number Diff line change
Expand Up @@ -230,9 +230,12 @@ func (v *Processor) Process(
}
}
var (
quality int
origWidth = float64(img.Width())
origHeight = float64(img.PageHeight())
quality int
bitdepth int
compression int
palette bool
origWidth = float64(img.Width())
origHeight = float64(img.PageHeight())
)
if format == ImageTypeUnknown {
if blob.BlobType() == imagor.BlobTypeAVIF {
Expand Down Expand Up @@ -290,6 +293,15 @@ func (v *Processor) Process(
focalRects = append(focalRects, f)
}
break
case "palette":
palette = true
break
case "bitdepth":
bitdepth, _ = strconv.Atoi(p.Args)
break
case "compression":
compression, _ = strconv.Atoi(p.Args)
break
}
}
if err := v.process(ctx, img, p, load, thumbnail, stretch, upscale, focalRects); err != nil {
Expand All @@ -301,7 +313,7 @@ func (v *Processor) Process(
}
format = supportedSaveFormat(format) // convert to supported export format
for {
buf, err := v.export(img, format, quality)
buf, err := v.export(img, format, compression, quality, palette, bitdepth)
if err != nil {
return nil, WrapErr(err)
}
Expand Down Expand Up @@ -562,10 +574,24 @@ func supportedSaveFormat(format ImageType) ImageType {
return ImageTypeJPEG
}

func (v *Processor) export(image *Image, format ImageType, quality int) ([]byte, error) {
func (v *Processor) export(
image *Image, format ImageType, compression int, quality int, palette bool, bitdepth int,
) ([]byte, error) {
switch format {
case ImageTypePNG:
opts := NewPngExportParams()
if quality > 0 {
opts.Quality = quality
}
if palette {
opts.Palette = palette
}
if bitdepth > 0 {
opts.Bitdepth = bitdepth
}
if compression > 0 {
opts.Compression = compression
}
return image.ExportPng(opts)
case ImageTypeWEBP:
opts := NewWebpExportParams()
Expand Down
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