add Properties.HasImage

Author: sentriz

taglib.cpp

@@ -99,6 +99,9 @@ taglib_file_audioproperties(const char *filename) {
   arr[2] = audioProperties->sampleRate();
   arr[3] = audioProperties->bitrate();
 
+  const auto &pictures = file.complexProperties("PICTURE");
+  arr[4] = pictures.isEmpty() ? 0 : 1;
+
   return arr;
 }
 

taglib.go

@@ -179,6 +179,8 @@ type Properties struct {
 	SampleRate uint
 	// Bitrate in kbit/s
 	Bitrate uint
+	// HasImage indicates whether the file contains embedded images
+	HasImage bool
 }
 
 // ReadProperties reads the audio properties from a file at the given path.
@@ -201,6 +203,7 @@ func ReadProperties(path string) (Properties, error) {
 		audioPropertyChannels
 		audioPropertySampleRate
 		audioPropertyBitrate
+		audioPropertyHasImage
 		audioPropertyLen
 	)
 
@@ -214,6 +217,7 @@ func ReadProperties(path string) (Properties, error) {
 		Channels:   uint(raw[audioPropertyChannels]),
 		SampleRate: uint(raw[audioPropertySampleRate]),
 		Bitrate:    uint(raw[audioPropertyBitrate]),
+		HasImage:   raw[audioPropertyHasImage] == 1,
 	}, nil
 }
 

taglib.wasm

@@ -250,6 +250,11 @@ func TestMultiOpen(t *testing.T) {
 
 func TestReadImage(t *testing.T) {
 	path := tmpf(t, egFLAC, "eg.flac")
+
+	properties, err := taglib.ReadProperties(path)
+	nilErr(t, err)
+	eq(t, properties.HasImage, true)
+
 	imgBytes, err := taglib.ReadImage(path)
 	nilErr(t, err)
 	if imgBytes == nil {