added crossfade plugin (experimental) (Closes issue 272)

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@1874 90c681e8-e032-0410-971d-27865f9a5e38

1 files changed, 61 insertions, 0 deletions

diff --git a/src/plugins/Effect/crossfade/crossfadeplugin.h b/src/plugins/Effect/crossfade/crossfadeplugin.h
new file mode 100644
index 000000000..ec025aded
--- /dev/null
+++ b/src/plugins/Effect/crossfade/crossfadeplugin.h
@@ -0,0 +1,61 @@
+/***************************************************************************
+ *   Copyright (C) 2010 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.             *
+ ***************************************************************************/
+#ifndef CROSSFADEPLUGIN_H
+#define CROSSFADEPLUGIN_H
+
+#include <QMutex>
+#include <qmmp/effect.h>
+
+class SoundCore;
+class StateHandler;
+
+/**
+    @author Ilya Kotov <forkotov02@hotmail.ru>
+*/
+
+class CrossfadePlugin : public Effect
+{
+public:
+    CrossfadePlugin();
+
+    virtual ~CrossfadePlugin();
+
+    void applyEffect(Buffer *b);
+    void configure(quint32 freq, int chan, Qmmp::AudioFormat format);
+
+private:
+    enum State
+    {
+        WAITING = 0,
+        PREPARING,
+        PROCESSING,
+    };
+
+    uchar *m_buffer;
+    ulong  m_buffer_at;
+    ulong  m_buffer_size;
+    qint64 m_overlap;
+    int m_state;
+    SoundCore *m_core;
+    StateHandler *m_handler;
+
+};
+
+#endif