very basic support for loudness correction

1 files changed, 10 insertions, 9 deletions

diff --git a/rhimport/converter.go b/rhimport/converter.go
index e8e693f..d375ad0 100644
--- a/rhimport/converter.go
+++ b/rhimport/converter.go
@@ -36,12 +36,13 @@ import (
 
 type FetchConverter interface {
 	io.WriteCloser
-	GetResult() (result string, err error)
+	GetResult() (result string, err error, loudnessCorr float64)
 }
 
 type ConverterResult struct {
-	output string
-	err    error
+	output       string
+	err          error
+	loudnessCorr float64
 }
 
 func NewFetchConverter(convType, filename string, metadata map[string]string) (FetchConverter, string, error) {
@@ -78,8 +79,8 @@ func (c *NullFetchConverter) Close() (err error) {
 	return c.file.Close()
 }
 
-func (c *NullFetchConverter) GetResult() (result string, err error) {
-	return "", nil
+func (c *NullFetchConverter) GetResult() (result string, err error, loudnessCorr float64) {
+	return "", nil, 0.0
 }
 
 //
@@ -111,7 +112,7 @@ func NewFFMpegFetchConverter(filename string, metadata map[string]string) (ff *F
 	ff.result = make(chan ConverterResult, 1)
 	go func() {
 		output, err := ff.cmd.CombinedOutput()
-		ff.result <- ConverterResult{strings.TrimSpace(string(output)), err}
+		ff.result <- ConverterResult{strings.TrimSpace(string(output)), err, 0.0}
 	}()
 	return
 }
@@ -124,10 +125,10 @@ func (ff *FFMpegFetchConverter) Close() (err error) {
 	return ff.pipe.Close()
 }
 
-func (ff *FFMpegFetchConverter) GetResult() (result string, err error) {
+func (ff *FFMpegFetchConverter) GetResult() (result string, err error, loudnessCorr float64) {
 	if ff.result != nil {
 		r := <-ff.result
-		return r.output, r.err
+		return r.output, r.err, r.loudnessCorr
 	}
-	return "", nil
+	return "", nil, 0.0
 }