48 lines
893 B
Go
48 lines
893 B
Go
package convert
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import (
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"github.com/davidbyttow/govips/v2/vips"
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"io"
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)
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type service struct{}
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func newService() *service {
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return &service{}
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}
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func (s *service) ConvertAndSave(imageData []byte, fullWriter, thumbWriter io.Writer) error {
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img, err := vips.NewImageFromBuffer(imageData)
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if err != nil {
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return err
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}
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defer img.Close()
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//force convert even it is already a jpeg image
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converted, _, err := img.ExportJpeg(&vips.JpegExportParams{
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StripMetadata: true,
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Quality: 90,
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})
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if _, err = fullWriter.Write(converted); err != nil {
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return err
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}
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if err = img.Thumbnail(300, 300, vips.InterestingNone); err != nil {
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return err
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}
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thumbnail, _, err := img.ExportJpeg(&vips.JpegExportParams{
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StripMetadata: true,
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Quality: 80,
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})
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if err != nil {
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return err
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}
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if _, err = thumbWriter.Write(thumbnail); err != nil {
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return err
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}
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return nil
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}
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