You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
93 lines
1.9 KiB
93 lines
1.9 KiB
/*
|
|
*
|
|
* $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
|