Show taglib and ffmpeg versions in the log

scanner/metadata/taglib/taglib.go

@@ -34,6 +34,10 @@ func (e *Extractor) CustomMappings() metadata.ParsedTags {
 	}
 }
 
+func (e *Extractor) Version() string {
+	return Version()
+}
+
 func (e *Extractor) extractMetadata(filePath string) (metadata.ParsedTags, error) {
 	tags, err := Read(filePath)
 	if err != nil {

scanner/metadata/taglib/taglib_wrapper.cpp

@@ -21,6 +21,13 @@
 
 char has_cover(const TagLib::FileRef f);
 
+static char TAGLIB_VERSION[16];
+
+char* taglib_version() {
+    snprintf((char *)TAGLIB_VERSION, 16, "%d.%d.%d", TAGLIB_MAJOR_VERSION, TAGLIB_MINOR_VERSION, TAGLIB_PATCH_VERSION);
+    return (char *)TAGLIB_VERSION;
+}
+
 int taglib_read(const FILENAME_CHAR_T *filename, unsigned long id) {
   TagLib::FileRef f(filename, true, TagLib::AudioProperties::Fast);
 

scanner/metadata/taglib/taglib_wrapper.go

@@ -25,6 +25,10 @@ import (
 
 const iTunesKeyPrefix = "----:com.apple.itunes:"
 
+func Version() string {
+	return C.GoString(C.taglib_version())
+}
+
 func Read(filename string) (tags map[string][]string, err error) {
 	// Do not crash on failures in the C code/library
 	debug.SetPanicOnFault(true)

scanner/metadata/taglib/taglib_wrapper.h

@@ -17,6 +17,7 @@ extern void go_map_put_int(unsigned long id, char *key, int val);
 extern void go_map_put_lyrics(unsigned long id, char *lang, char *val);
 extern void go_map_put_lyric_line(unsigned long id, char *lang, char *text, int time);
 int taglib_read(const FILENAME_CHAR_T *filename, unsigned long id);
+char* taglib_version();
 
 #ifdef __cplusplus
 }