File indexing completed on 2024-05-12 04:51:32

 /*
     SPDX-FileCopyrightText: 1998-2007 Sebastian Trueg <trueg@k3b.org>
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #ifndef _K3B_MAD_H_
 #define _K3B_MAD_H_
 
 extern "C" {
 #include <mad.h>
 }
 
 #include <QFile>
 
 
 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.
    */
   qint64 inputPos() const;
 
   /**
    * Current absolute position of the decoder stream.
    */
   qint64 streamPos() const;
   bool inputSeek( qint64 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