song info: show replay gain info if available (flac/ogg only)

1 files changed, 34 insertions, 0 deletions

diff --git a/src/tags.h b/src/tags.h
index 71b34855..6acb3135 100644
--- a/src/tags.h
+++ b/src/tags.h
@@ -30,6 +30,40 @@
 
 namespace Tags {//
 
+struct ReplayGainInfo
+{
+	ReplayGainInfo() { }
+	ReplayGainInfo(std::string reference_loudness, std::string track_gain,
+				   std::string track_peak, std::string album_gain,
+				   std::string album_peak)
+	: m_reference_loudness(reference_loudness), m_track_gain(track_gain)
+	, m_track_peak(track_peak), m_album_gain(album_gain), m_album_peak(album_peak) { }
+	
+	bool empty() const
+	{
+		return m_reference_loudness.empty()
+		    && m_track_gain.empty()
+		    && m_track_peak.empty()
+		    && m_album_gain.empty()
+		    && m_album_peak.empty();
+	}
+	
+	const std::string &referenceLoudness() const { return m_reference_loudness; }
+	const std::string &trackGain() const { return m_track_gain; }
+	const std::string &trackPeak() const { return m_track_peak; }
+	const std::string &albumGain() const { return m_album_gain; }
+	const std::string &albumPeak() const { return m_album_peak; }
+	
+private:
+	std::string m_reference_loudness;
+	std::string m_track_gain;
+	std::string m_track_peak;
+	std::string m_album_gain;
+	std::string m_album_peak;
+};
+
+ReplayGainInfo readReplayGain(TagLib::File *f);
+
 bool extendedSetSupported(const TagLib::File *f);
 
 void read(MPD::MutableSong &);