40 lines
951 B
Go
40 lines
951 B
Go
|
package libtgsconverter
|
||
|
|
|
||
|
|
import "bytes"
|
||
|
|
import "image"
|
||
|
|
|
||
|
|
import "github.com/sizeofint/webpanimation"
|
||
|
|
|
||
|
|
type towebp struct {
|
||
|
|
timestamp int
|
||
|
|
webpanim *webpanimation.WebpAnimation
|
||
|
|
config webpanimation.WebPConfig
|
||
|
|
}
|
||
|
|
|
||
|
|
func(to_webp *towebp) init(w uint, h uint, options ConverterOptions) {
|
||
|
|
to_webp.timestamp = 0
|
||
|
|
to_webp.webpanim = webpanimation.NewWebpAnimation(int(w), int(h), 0)
|
||
|
|
to_webp.config = webpanimation.NewWebpConfig()
|
||
|
|
to_webp.config.SetQuality(options.GetWebpQuality())
|
||
|
|
}
|
||
|
|
|
||
|
|
func(to_webp *towebp) SupportsAnimation() bool {
|
||
|
|
return true
|
||
|
|
}
|
||
|
|
|
||
|
|
func (to_webp *towebp) AddFrame(image *image.RGBA, fps uint) error {
|
||
|
|
err := to_webp.webpanim.AddFrame(image, to_webp.timestamp, to_webp.config)
|
||
|
|
to_webp.timestamp += int((1.0 / float32(fps)) * 1000.)
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
func (to_webp *towebp) Result() []byte {
|
||
|
|
var buf bytes.Buffer
|
||
|
|
err := to_webp.webpanim.Encode(&buf)
|
||
|
|
if err != nil {
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
to_webp.webpanim.ReleaseMemory()
|
||
|
|
return buf.Bytes()
|
||
|
|
}
|