Monkey's Audio: Don't call "tag" program, if there is *no* meta-data to be embedded, because it will fail (bug probably existed since MAC encoding support was added)

Nero AAC: Don't call neroAacTag, if there is *no* meta-data to be embedded (neroAacTag doesn't fail in this case, but it would be a pointless call anyway)

doc/Changelog.html

@@ -34,6 +34,7 @@
 <nav id="TOC">
 <ul>
 <li><a href="#lamexp-v4.xx-history"><span class="toc-section-number">1</span> LameXP v4.xx History</a><ul>
+<li><a href="#lamexp-v4.13-xxxx-xx-xx">LameXP v4.13 [xxxx-xx-xx]</a></li>
 <li><a href="#lamexp-v4.12-2015-10-23">LameXP v4.12 [2015-10-23]</a></li>
 <li><a href="#lamexp-v4.11-2015-04-05">LameXP v4.11 [2015-04-05]</a></li>
 <li><a href="#lamexp-v4.10-2014-06-23">LameXP v4.10 [2014-06-23]</a></li>
@@ -80,6 +81,11 @@
 </ul>
 </nav>
 <h1 id="lamexp-v4.xx-history"><span class="header-section-number">1</span> LameXP v4.xx History</h1>
+<h2 id="lamexp-v4.13-xxxx-xx-xx" class="unnumbered">LameXP v4.13 [xxxx-xx-xx]</h2>
+<ul>
+<li>Upgraded build environment to Microsoft Visual Studio 2015<br /></li>
+<li>Fixed creation of Monkey's Audio (APE) files, when <strong>no</strong> meta data is being embedded</li>
+</ul>
 <h2 id="lamexp-v4.12-2015-10-23" class="unnumbered">LameXP v4.12 [2015-10-23]</h2>
 <ul>
 <li>Upgraded build environment to Microsoft Visual Studio 2013 with Update-5<br /></li>

doc/Changelog.md

@@ -2,6 +2,11 @@
 
 # LameXP v4.xx History #
 
+## LameXP v4.13 [xxxx-xx-xx] ## {-}
+
+* Upgraded build environment to Microsoft Visual Studio 2015
+* Fixed creation of Monkey's Audio (APE) files, when **no** meta data is being embedded
+
 ## LameXP v4.12 [2015-10-23] ## {-}
 
 * Upgraded build environment to Microsoft Visual Studio 2013 with Update-5

src/Encoder_AAC.cpp

@@ -285,6 +285,11 @@ bool AACEncoder::encode(const QString &sourceFile, const AudioFileModel_MetaInfo
 		return false;
 	}
 
+	if(metaInfo.empty(false))
+	{
+		return true;
+	}
+
 	emit messageLogged("\n-------------------------------\n");
 	
 	args.clear();

src/Encoder_MAC.cpp

@@ -216,6 +216,11 @@ bool MACEncoder::encode(const QString &sourceFile, const AudioFileModel_MetaInfo
 		return false;
 	}
 
+	if(metaInfo.empty(true))
+	{
+		return true;
+	}
+
 	emit messageLogged("\n-------------------------------\n");
 	
 	args.clear();

src/Model_AudioFile.cpp

@@ -155,6 +155,29 @@ void AudioFileModel_MetaInfo::print(void) const
 	PRINT_U(m_position);
 }
 
+bool  AudioFileModel_MetaInfo::empty(const bool &ignoreArtwork) const
+{
+	bool isEmpty = true;
+
+	if(!m_titel.isEmpty())   isEmpty = false;
+	if(!m_artist.isEmpty())  isEmpty = false;
+	if(!m_album.isEmpty())   isEmpty = false;
+	if(!m_genre.isEmpty())   isEmpty = false;
+	if(!m_comment.isEmpty()) isEmpty = false;
+	if(m_year)               isEmpty = false;
+	if(m_position)           isEmpty = false;
+
+	if(!ignoreArtwork)
+	{
+		if(!m_cover.isEmpty())
+		{
+			isEmpty = false;
+		}
+	}
+
+	return isEmpty;
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 // Audio File - Technical Info
 ///////////////////////////////////////////////////////////////////////////////

src/Model_AudioFile.h

@@ -62,6 +62,9 @@ public:
 	inline void setYear(const unsigned int year)                  { m_year = year; }
 	inline void setPosition(const unsigned int position)          { m_position = position; }
 
+	//Is empty?
+	bool empty(const bool &ignoreArtwork) const;
+
 	//Reset
 	void reset(void);