added null output plugin

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@1550 90c681e8-e032-0410-971d-27865f9a5e38

1 files changed, 70 insertions, 0 deletions

diff --git a/src/plugins/Output/null/outputnull.cpp b/src/plugins/Output/null/outputnull.cpp
new file mode 100644
index 000000000..796ba8c5b
--- /dev/null
+++ b/src/plugins/Output/null/outputnull.cpp
@@ -0,0 +1,70 @@
+/***************************************************************************
+ *   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.             *
+ ***************************************************************************/
+
+#include "outputnull.h"
+
+#define MAX_SIZE 50000
+
+OutputNull::OutputNull(QObject * parent) : Output(parent)
+{
+   m_bytes_per_second = 0;
+}
+
+OutputNull::~OutputNull()
+{}
+
+void OutputNull::configure(quint32 freq, int chan, Qmmp::AudioFormat format)
+{
+    switch (format)
+    {
+    case Qmmp::PCM_S8:
+        m_bytes_per_second = freq * chan;
+        break;
+    case Qmmp::PCM_S24LE:
+    case Qmmp::PCM_S32LE:
+         m_bytes_per_second = freq * chan * 4;
+        break;
+    case Qmmp::PCM_S16LE:
+    default:
+         m_bytes_per_second = freq * chan * 2;
+    }
+    Output::configure(freq, chan, format);
+}
+
+bool OutputNull::initialize()
+{
+    return TRUE;
+}
+
+
+qint64 OutputNull::latency()
+{
+    return 0;
+}
+
+qint64 OutputNull::writeAudio(unsigned char *data, qint64 maxSize)
+{
+   Q_UNUSED(data);
+   usleep(maxSize * 1000000 / m_bytes_per_second);
+   return maxSize;
+}
+
+void OutputNull::flush()
+{}