annotate data/fileio/MP3FileReader.h @ 1097:abc309f507ae simple-fft-model

Tidy
author Chris Cannam
date Mon, 15 Jun 2015 12:38:50 +0100
parents a1cd5abcb38b
children 16a8e97179d7
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@263 23 #include "base/Thread.h"
Chris@148 24 #include <mad.h>
Chris@148 25
Chris@157 26 #include <set>
Chris@157 27
Chris@392 28 class ProgressReporter;
Chris@148 29
Chris@148 30 class MP3FileReader : public CodedAudioFileReader
Chris@148 31 {
Chris@392 32 Q_OBJECT
Chris@392 33
Chris@148 34 public:
Chris@317 35 MP3FileReader(FileSource source,
Chris@297 36 DecodeMode decodeMode,
Chris@297 37 CacheMode cacheMode,
Chris@1040 38 sv_samplerate_t targetRate = 0,
Chris@920 39 bool normalised = false,
Chris@392 40 ProgressReporter *reporter = 0);
Chris@148 41 virtual ~MP3FileReader();
Chris@148 42
Chris@290 43 virtual QString getError() const { return m_error; }
Chris@290 44
Chris@345 45 virtual QString getLocation() const { return m_source.getLocation(); }
Chris@290 46 virtual QString getTitle() const { return m_title; }
Chris@334 47 virtual QString getMaker() const { return m_maker; }
Chris@632 48 virtual TagMap getTags() const { return m_tags; }
Chris@271 49
Chris@290 50 static void getSupportedExtensions(std::set<QString> &extensions);
Chris@316 51 static bool supportsExtension(QString ext);
Chris@316 52 static bool supportsContentType(QString type);
Chris@317 53 static bool supports(FileSource &source);
Chris@316 54
Chris@265 55 virtual int getDecodeCompletion() const { return m_completion; }
Chris@265 56
Chris@263 57 virtual bool isUpdating() const {
Chris@263 58 return m_decodeThread && m_decodeThread->isRunning();
Chris@263 59 }
Chris@263 60
Chris@392 61 public slots:
Chris@392 62 void cancelled();
Chris@392 63
Chris@148 64 protected:
Chris@317 65 FileSource m_source;
Chris@290 66 QString m_path;
Chris@290 67 QString m_error;
Chris@290 68 QString m_title;
Chris@333 69 QString m_maker;
Chris@632 70 TagMap m_tags;
Chris@1038 71 sv_frame_t m_fileSize;
Chris@148 72 double m_bitrateNum;
Chris@929 73 int m_bitrateDenom;
Chris@265 74 int m_completion;
Chris@263 75 bool m_done;
Chris@263 76
Chris@263 77 unsigned char *m_filebuffer;
Chris@297 78 float **m_samplebuffer;
Chris@929 79 int m_samplebuffersize;
Chris@148 80
Chris@392 81 ProgressReporter *m_reporter;
Chris@148 82 bool m_cancelled;
Chris@148 83
Chris@148 84 struct DecoderData
Chris@148 85 {
Chris@148 86 unsigned char const *start;
Chris@148 87 unsigned long length;
Chris@148 88 MP3FileReader *reader;
Chris@148 89 };
Chris@148 90
Chris@1038 91 bool decode(void *mm, sv_frame_t sz);
Chris@148 92 enum mad_flow accept(struct mad_header const *, struct mad_pcm *);
Chris@148 93
Chris@148 94 static enum mad_flow input(void *, struct mad_stream *);
Chris@148 95 static enum mad_flow output(void *, struct mad_header const *, struct mad_pcm *);
Chris@148 96 static enum mad_flow error(void *, struct mad_stream *, struct mad_frame *);
Chris@263 97
Chris@263 98 class DecodeThread : public Thread
Chris@263 99 {
Chris@263 100 public:
Chris@263 101 DecodeThread(MP3FileReader *reader) : m_reader(reader) { }
Chris@263 102 virtual void run();
Chris@263 103
Chris@263 104 protected:
Chris@263 105 MP3FileReader *m_reader;
Chris@263 106 };
Chris@263 107
Chris@263 108 DecodeThread *m_decodeThread;
Chris@271 109
Chris@271 110 void loadTags();
Chris@333 111 QString loadTag(void *vtag, const char *name);
Chris@148 112 };
Chris@148 113
Chris@148 114 #endif
Chris@148 115
Chris@148 116 #endif