annotate data/fileio/MP3FileReader.h @ 228:f02989f7e160

...
author Chris Cannam
date Mon, 12 Feb 2007 13:09:31 +0000
parents c03ec31005e1
children 71dfc6ab3b54
rev   line source
Chris@148 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@148 2
Chris@148 3 /*
Chris@148 4 Sonic Visualiser
Chris@148 5 An audio file viewer and annotation editor.
Chris@148 6 Centre for Digital Music, Queen Mary, University of London.
Chris@148 7 This file copyright 2006 Chris Cannam.
Chris@148 8
Chris@148 9 This program is free software; you can redistribute it and/or
Chris@148 10 modify it under the terms of the GNU General Public License as
Chris@148 11 published by the Free Software Foundation; either version 2 of the
Chris@148 12 License, or (at your option) any later version. See the file
Chris@148 13 COPYING included with this distribution for more information.
Chris@148 14 */
Chris@148 15
Chris@148 16 #ifndef _MP3_FILE_READER_H_
Chris@148 17 #define _MP3_FILE_READER_H_
Chris@148 18
Chris@148 19 #ifdef HAVE_MAD
Chris@148 20
Chris@148 21 #include "CodedAudioFileReader.h"
Chris@148 22
Chris@148 23 #include <mad.h>
Chris@148 24
Chris@157 25 #include <set>
Chris@157 26
Chris@148 27 class QProgressDialog;
Chris@148 28
Chris@148 29 class MP3FileReader : public CodedAudioFileReader
Chris@148 30 {
Chris@148 31 public:
Chris@148 32 MP3FileReader(QString path, bool showProgress, CacheMode cacheMode);
Chris@148 33 virtual ~MP3FileReader();
Chris@148 34
Chris@148 35 virtual QString getError() const { return m_error; }
Chris@157 36
Chris@157 37 static void getSupportedExtensions(std::set<QString> &extensions);
Chris@148 38
Chris@148 39 protected:
Chris@148 40 QString m_path;
Chris@148 41 QString m_error;
Chris@148 42 size_t m_fileSize;
Chris@148 43 double m_bitrateNum;
Chris@148 44 size_t m_bitrateDenom;
Chris@148 45
Chris@148 46 QProgressDialog *m_progress;
Chris@148 47 bool m_cancelled;
Chris@148 48
Chris@148 49 struct DecoderData
Chris@148 50 {
Chris@148 51 unsigned char const *start;
Chris@148 52 unsigned long length;
Chris@148 53 MP3FileReader *reader;
Chris@148 54 };
Chris@148 55
Chris@148 56 bool decode(void *mm, size_t sz);
Chris@148 57 enum mad_flow accept(struct mad_header const *, struct mad_pcm *);
Chris@148 58
Chris@148 59 static enum mad_flow input(void *, struct mad_stream *);
Chris@148 60 static enum mad_flow output(void *, struct mad_header const *, struct mad_pcm *);
Chris@148 61 static enum mad_flow error(void *, struct mad_stream *, struct mad_frame *);
Chris@148 62 };
Chris@148 63
Chris@148 64 #endif
Chris@148 65
Chris@148 66 #endif