Use TagLib to detect whether a media file has embedded cover or not

scanner/metadata/taglib.go

@@ -1,9 +1,6 @@
 package metadata
 
 import (
-	"os"
-
-	"github.com/dhowden/tag"
 	"github.com/navidrome/navidrome/log"
 	"github.com/navidrome/navidrome/scanner/metadata/taglib"
 )
@@ -25,10 +22,6 @@ func (e *taglibExtractor) extractMetadata(filePath string) (*Tags, error) {
 	parsedTags, err := taglib.Read(filePath)
 	if err != nil {
 		log.Warn("Error reading metadata from file. Skipping", "filePath", filePath, err)
-	} else {
-		if hasEmbeddedImage(filePath) {
-			parsedTags["has_picture"] = []string{"true"}
-		}
 	}
 
 	tags := NewTags(filePath, parsedTags, map[string][]string{
@@ -41,25 +34,3 @@ func (e *taglibExtractor) extractMetadata(filePath string) (*Tags, error) {
 
 	return tags, nil
 }
-
-func hasEmbeddedImage(path string) bool {
-	defer func() {
-		if r := recover(); r != nil {
-			log.Error("Panic while checking for images. Please report this error with a copy of the file", "path", path, r)
-		}
-	}()
-	f, err := os.Open(path)
-	if err != nil {
-		log.Warn("Error opening file", "filePath", path, err)
-		return false
-	}
-	defer f.Close()
-
-	m, err := tag.ReadFrom(f)
-	if err != nil {
-		log.Warn("Error reading picture tag from file", "filePath", path, err)
-		return false
-	}
-
-	return m.Picture() != nil
-}

scanner/metadata/taglib/taglib_parser.cpp

@@ -3,13 +3,20 @@
 #include <typeinfo>
 
 #define TAGLIB_STATIC
+#include <asffile.h>
 #include <fileref.h>
+#include <flacfile.h>
 #include <id3v2tag.h>
+#include <mp4file.h>
 #include <mpegfile.h>
+#include <opusfile.h>
 #include <tpropertymap.h>
+#include <vorbisfile.h>
 
 #include "taglib_parser.h"
 
+char has_cover(const TagLib::FileRef f);
+
 int taglib_read(const char *filename, unsigned long id) {
   TagLib::FileRef f(filename, true, TagLib::AudioProperties::Fast);
 
@@ -61,6 +68,10 @@ int taglib_read(const char *filename, unsigned long id) {
     }
   }
 
+  if (has_cover(f)) {
+    go_map_put_str(id, (char *)"has_picture", (char *)"true");
+  }
+
   for (TagLib::PropertyMap::ConstIterator i = tags.begin(); i != tags.end();
        ++i) {
     for (TagLib::StringList::ConstIterator j = i->second.begin();
@@ -75,3 +86,45 @@ int taglib_read(const char *filename, unsigned long id) {
 
   return 0;
 }
+
+char has_cover(const TagLib::FileRef f) {
+  char hasCover = 0;
+  // ----- MP3
+  if (TagLib::MPEG::File *
+      mp3File{dynamic_cast<TagLib::MPEG::File *>(f.file())}) {
+    if (mp3File->ID3v2Tag()) {
+      const auto &frameListMap{mp3File->ID3v2Tag()->frameListMap()};
+      hasCover = !frameListMap["APIC"].isEmpty();
+    }
+  }
+  // ----- FLAC
+  else if (TagLib::FLAC::File *
+           flacFile{dynamic_cast<TagLib::FLAC::File *>(f.file())}) {
+    hasCover = !flacFile->pictureList().isEmpty();
+  }
+  // ----- MP4
+  else if (TagLib::MP4::File *
+           mp4File{dynamic_cast<TagLib::MP4::File *>(f.file())}) {
+    auto &coverItem{mp4File->tag()->itemMap()["covr"]};
+    TagLib::MP4::CoverArtList coverArtList{coverItem.toCoverArtList()};
+    hasCover = !coverArtList.isEmpty();
+  }
+  // ----- Ogg
+  else if (TagLib::Ogg::Vorbis::File *
+           vorbisFile{dynamic_cast<TagLib::Ogg::Vorbis::File *>(f.file())}) {
+    hasCover = !vorbisFile->tag()->pictureList().isEmpty();
+  }
+  // ----- Opus
+  else if (TagLib::Ogg::Opus::File *
+           opusFile{dynamic_cast<TagLib::Ogg::Opus::File *>(f.file())}) {
+    hasCover = !opusFile->tag()->pictureList().isEmpty();
+  }
+  // ----- WMA
+  if (TagLib::ASF::File *
+      asfFile{dynamic_cast<TagLib::ASF::File *>(f.file())}) {
+    const TagLib::ASF::Tag *tag{asfFile->tag()};
+    hasCover = tag && tag->attributeListMap().contains("WM/Picture");
+  }
+
+  return hasCover;
+}