1 files changed, 112 insertions, 0 deletions
diff --git a/libk3b/projects/audiocd/k3baudiofile.cpp b/libk3b/projects/audiocd/k3baudiofile.cpp
new file mode 100644
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--- /dev/null
+++ b/libk3b/projects/audiocd/k3baudiofile.cpp
@@ -0,0 +1,112 @@
+/* 
+ *
+ * $Id: k3baudiofile.cpp 619556 2007-01-03 17:38:12Z trueg $
+ * Copyright (C) 2004 Sebastian Trueg <trueg@k3b.org>
+ *
+ * This file is part of the K3b project.
+ * Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
+ *
+ * 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.
+ * See the file "COPYING" for the exact licensing terms.
+ */
+
+#include "k3baudiofile.h"
+#include "k3baudiodoc.h"
+#include "k3baudiotrack.h"
+
+#include <k3baudiodecoder.h>
+
+
+K3bAudioFile::K3bAudioFile( K3bAudioDecoder* dec, K3bAudioDoc* doc )
+  : K3bAudioDataSource(),
+    m_doc(doc),
+    m_decoder(dec),
+    m_decodedData(0)
+{
+  // FIXME: somehow make it possible to switch docs
+  doc->increaseDecoderUsage( m_decoder );
+}
+
+
+K3bAudioFile::K3bAudioFile( const K3bAudioFile& file )
+  : K3bAudioDataSource( file ),
+    m_doc( file.m_doc ),
+    m_decoder( file.m_decoder ),
+    m_decodedData(0)
+{
+  m_doc->increaseDecoderUsage( m_decoder );
+}
+
+
+K3bAudioFile::~K3bAudioFile()
+{
+  m_doc->decreaseDecoderUsage( m_decoder );
+}
+
+
+QString K3bAudioFile::type() const
+{
+  return m_decoder->fileType();
+}
+
+
+QString K3bAudioFile::sourceComment() const
+{
+  return m_decoder->filename().section( "/", -1 );
+}
+
+
+const QString& K3bAudioFile::filename() const
+{
+  return m_decoder->filename();
+}
+
+
+bool K3bAudioFile::isValid() const
+{
+  return m_decoder->isValid();
+}
+
+
+K3b::Msf K3bAudioFile::originalLength() const
+{
+  return m_decoder->length();
+}
+
+
+bool K3bAudioFile::seek( const K3b::Msf& msf )
+{
+  // this is valid once the decoder has been initialized.
+  if( startOffset() + msf <= lastSector() &&
+      m_decoder->seek( startOffset() + msf ) ) {
+    m_decodedData = msf.audioBytes();
+    return true;
+  }
+  else
+    return false;
+}
+
+
+int K3bAudioFile::read( char* data, unsigned int max )
+{
+  // here we can trust on the decoder to always provide enough data
+  // see if we decode too much
+  if( max + m_decodedData > length().audioBytes() )
+    max = length().audioBytes() - m_decodedData;
+
+  int read = m_decoder->decode( data, max );
+
+  if( read > 0 )
+    m_decodedData += read;
+
+  return read;
+}
+
+
+K3bAudioDataSource* K3bAudioFile::copy() const
+{
+  return new K3bAudioFile( *this );
+}