added replaygain support for flac and wavpack

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@1459 90c681e8-e032-0410-971d-27865f9a5e38

1 files changed, 84 insertions, 0 deletions

diff --git a/src/plugins/Input/wavpack/replaygainreader.cpp b/src/plugins/Input/wavpack/replaygainreader.cpp
new file mode 100644
index 000000000..08a0e8cd5
--- /dev/null
+++ b/src/plugins/Input/wavpack/replaygainreader.cpp
@@ -0,0 +1,84 @@
+/***************************************************************************
+ *   Copyright (C) 2009 by Ilya Kotov                                      *
+ *   forkotov02@hotmail.ru                                                 *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QtGlobal>
+#include <taglib/wavpackfile.h>
+#include <taglib/tag.h>
+#include "replaygainreader.h"
+
+ReplayGainReader::ReplayGainReader(const QString &path)
+{
+    if(path.contains("://"))
+    {
+        QString p = QUrl(path).path();
+        p.replace(QString(QUrl::toPercentEncoding("#")), "#");
+        p.replace(QString(QUrl::toPercentEncoding("?")), "?");
+        p.replace(QString(QUrl::toPercentEncoding("%")), "%");
+        m_path = p;
+    }
+    else
+        m_path = path;
+
+    char err[80];
+    m_ctx = WavpackOpenFileInput (m_path.toLocal8Bit(), err,
+                                  OPEN_WVC | OPEN_EDIT_TAGS, 0);
+    if (!m_ctx)
+    {
+        qWarning("WavPackMetaDataModel: error: %s", err);
+        return;
+    }
+    readAPE();
+}
+
+ReplayGainReader::~ReplayGainReader()
+{
+     if(m_ctx)
+        WavpackCloseFile (m_ctx);
+}
+
+QMap <Qmmp::ReplayGainKey, double> ReplayGainReader::replayGainInfo() const
+{
+    return m_values;
+}
+
+void ReplayGainReader::readAPE()
+{
+    char value[200];
+    WavpackGetTagItem (m_ctx, "REPLAYGAIN_TRACK_GAIN", value, sizeof(value));
+    setValue(Qmmp::REPLAYGAIN_TRACK_GAIN, value);
+    WavpackGetTagItem (m_ctx, "REPLAYGAIN_TRACK_PEAK", value, sizeof(value));
+    setValue(Qmmp::REPLAYGAIN_TRACK_PEAK, value);
+    WavpackGetTagItem (m_ctx, "REPLAYGAIN_ALBUM_GAIN", value, sizeof(value));
+    setValue(Qmmp::REPLAYGAIN_ALBUM_GAIN, value);
+    WavpackGetTagItem (m_ctx, "REPLAYGAIN_ALBUM_PEAK", value, sizeof(value));
+    setValue(Qmmp::REPLAYGAIN_ALBUM_PEAK, value);
+}
+
+void ReplayGainReader::setValue(Qmmp::ReplayGainKey key, QString value)
+{
+    value.remove(" dB");
+    value = value.trimmed();
+    if(value.isEmpty())
+        return;
+    bool ok;
+    double v = value.toDouble(&ok);
+    if(ok)
+        m_values[key] = v;
+}