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Laura
2025-06-19 13:24:19 +02:00
parent 1a5e919a74
commit 49648b46b5
3 changed files with 109 additions and 4 deletions
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10
internal/codec/png/png.go
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@ -33,11 +33,11 @@ func (impl) Extensions() []string {
func (impl) Flags(flags []cli.Flag) []cli.Flag {
return append(flags, &cli.IntFlag{
Name: "png.compression",
Usage: "PNG: compression level (0=default, 1=none, 2=speed, 3=best)",
Value: 0,
Usage: "PNG: compression level (0=none, 1=default, 2=speed, 3=best)",
Value: 1,
Destination: &compression,
Validator: func(value int) error {
if value < 0 || value > 4 {
if value < 0 || value > 3 {
return fmt.Errorf("invalid compression level: %q", value)
}
@ -76,8 +76,10 @@ func (impl) Encode(writer io.Writer, img image.Image, _ opts.Common) error {
func compressionLevel(level int) png.CompressionLevel {
switch level {
case 1:
case 0:
return png.NoCompression
case 1:
return png.DefaultCompression
case 2:
return png.BestSpeed
case 3: