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path: root/vendor/github.com/klauspost/compress/zstd/encoder_options.go
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Diffstat (limited to 'vendor/github.com/klauspost/compress/zstd/encoder_options.go')
-rw-r--r--vendor/github.com/klauspost/compress/zstd/encoder_options.go20
1 files changed, 14 insertions, 6 deletions
diff --git a/vendor/github.com/klauspost/compress/zstd/encoder_options.go b/vendor/github.com/klauspost/compress/zstd/encoder_options.go
index 1209915bc..a7312f42a 100644
--- a/vendor/github.com/klauspost/compress/zstd/encoder_options.go
+++ b/vendor/github.com/klauspost/compress/zstd/encoder_options.go
@@ -47,6 +47,8 @@ func (o encoderOptions) encoder() encoder {
return &doubleFastEncoder{fastEncoder: fastEncoder{fastBase: fastBase{maxMatchOff: int32(o.windowSize)}}}
case SpeedBetterCompression:
return &betterFastEncoder{fastBase: fastBase{maxMatchOff: int32(o.windowSize)}}
+ case SpeedBestCompression:
+ return &bestFastEncoder{fastBase: fastBase{maxMatchOff: int32(o.windowSize)}}
case SpeedFastest:
return &fastEncoder{fastBase: fastBase{maxMatchOff: int32(o.windowSize)}}
}
@@ -143,20 +145,20 @@ const (
// By using this, notice that CPU usage may go up in the future.
SpeedBetterCompression
+ // SpeedBestCompression will choose the best available compression option.
+ // This will offer the best compression no matter the CPU cost.
+ SpeedBestCompression
+
// speedLast should be kept as the last actual compression option.
// The is not for external usage, but is used to keep track of the valid options.
speedLast
-
- // SpeedBestCompression will choose the best available compression option.
- // For now this is not implemented.
- SpeedBestCompression = SpeedBetterCompression
)
// EncoderLevelFromString will convert a string representation of an encoding level back
// to a compression level. The compare is not case sensitive.
// If the string wasn't recognized, (false, SpeedDefault) will be returned.
func EncoderLevelFromString(s string) (bool, EncoderLevel) {
- for l := EncoderLevel(speedNotSet + 1); l < speedLast; l++ {
+ for l := speedNotSet + 1; l < speedLast; l++ {
if strings.EqualFold(s, l.String()) {
return true, l
}
@@ -173,7 +175,9 @@ func EncoderLevelFromZstd(level int) EncoderLevel {
return SpeedFastest
case level >= 3 && level < 6:
return SpeedDefault
- case level > 5:
+ case level >= 6 && level < 10:
+ return SpeedBetterCompression
+ case level >= 10:
return SpeedBetterCompression
}
return SpeedDefault
@@ -188,6 +192,8 @@ func (e EncoderLevel) String() string {
return "default"
case SpeedBetterCompression:
return "better"
+ case SpeedBestCompression:
+ return "best"
default:
return "invalid"
}
@@ -209,6 +215,8 @@ func WithEncoderLevel(l EncoderLevel) EOption {
o.windowSize = 8 << 20
case SpeedBetterCompression:
o.windowSize = 16 << 20
+ case SpeedBestCompression:
+ o.windowSize = 32 << 20
}
}
if !o.customALEntropy {