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Update and fix README usage code.

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This commit is contained in:
harukasan 2015-01-09 12:53:43 +09:00
parent 5af6d93b3b
commit f538b94d63
1 changed files with 15 additions and 18 deletions
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33
README.md
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@ -10,9 +10,9 @@ The [examples](./examples) directory contains example codes and images.
### Decoding WebP into image.RGBA ### Decoding WebP into image.RGBA
``` ```
import ( package main
"io/ioutil"
import (
"github.com/harukasan/go-libwebp/examples/util" "github.com/harukasan/go-libwebp/examples/util"
"github.com/harukasan/go-libwebp/webp" "github.com/harukasan/go-libwebp/webp"
) )
@ -21,10 +21,7 @@ func main() {
var err error var err error
// Read binary data // Read binary data
data, err := ioutil.ReadFile("examples/cosmos.webp") data := util.ReadFile("cosmos.webp")
if err != nil {
panic(err)
}
// Decode // Decode
options := &webp.DecoderOptions{} options := &webp.DecoderOptions{}
@ -33,10 +30,7 @@ func main() {
panic(err) panic(err)
} }
err = util.WritePNG(img, "out/encoded_cosmos.png") util.WritePNG(img, "encoded_cosmos.png")
if err != nil {
panic(err)
}
} }
``` ```
@ -56,19 +50,22 @@ import (
) )
func main() { func main() {
err := util.ReadPNG("examples/cosmos.png") img := util.ReadPNG("cosmos.png")
if err != nil {
panic()
}
// Encode to WebP // Create file and buffered writer
io := ("out.webp") io := util.CreateFile("encoded_cosmos.webp")
w := bufio.NewWriter(f) w := bufio.NewWriter(io)
defer func() { defer func() {
w.Flush() w.Flush()
f.Close() io.Close()
}() }()
config := webp.Config{
Preset: webp.PresetDefault,
Quality: 90,
}
// Encode into WebP
if err := webp.EncodeRGBA(w, img.(*image.RGBA), config); err != nil { if err := webp.EncodeRGBA(w, img.(*image.RGBA), config); err != nil {
panic(err) panic(err)
} }