1 files changed, 92 insertions, 0 deletions
diff --git a/plugins/decoder/mp3/k3bmad.h b/plugins/decoder/mp3/k3bmad.h
new file mode 100644
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+++ b/plugins/decoder/mp3/k3bmad.h
@@ -0,0 +1,92 @@
+/* 
+ *
+ * $Id: k3bmad.h 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.
+ */
+
+#ifndef _K3B_MAD_H_
+#define _K3B_MAD_H_
+
+extern "C" {
+#include <mad.h>
+}
+
+#include <qfile.h>
+
+
+class K3bMad
+{
+public:
+  K3bMad();
+  ~K3bMad();
+
+  bool open( const QString& filename );
+
+  /**
+   * @return true if the mad stream contains data
+   *         false if there is no data left or an error occurred.
+   *         In the latter case inputError() returns true.
+   */
+  bool fillStreamBuffer();
+
+  /**
+   * Skip id3 tags.
+   *
+   * This will reset the input file.
+   */
+  bool skipTag();
+
+  /**
+   * Find first frame and seek to the beginning of that frame.
+   * This is used to skip the junk that many mp3 files start with.
+   */
+  bool seekFirstHeader();
+
+  bool eof() const;
+  bool inputError() const;
+
+  /**
+   * Current position in theinput file. This does NOT
+   * care about the status of the mad stream. Use streamPos()
+   * in that case.
+   */
+  QIODevice::Offset inputPos() const;
+
+  /**
+   * Current absolut position of the decoder stream.
+   */
+  QIODevice::Offset streamPos() const;
+  bool inputSeek( QIODevice::Offset pos );
+
+  void initMad();
+  void cleanup();
+
+  bool decodeNextFrame();
+  bool findNextHeader();
+  bool checkFrameHeader( mad_header* header ) const;
+
+  mad_stream*   madStream;
+  mad_frame*    madFrame;
+  mad_synth*    madSynth;
+  mad_timer_t*  madTimer;
+
+private:
+  QFile m_inputFile;
+  bool m_madStructuresInitialized;
+  unsigned char* m_inputBuffer;
+  bool m_bInputError;
+
+  int m_channels;
+  int m_sampleRate;
+};
+
+#endif