Chris@297: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@297: 
Chris@297: /*
Chris@297:     Sonic Visualiser
Chris@297:     An audio file viewer and annotation editor.
Chris@297:     Centre for Digital Music, Queen Mary, University of London.
Chris@297:     This file copyright 2007 QMUL.
Chris@297:     
Chris@297:     This program is free software; you can redistribute it and/or
Chris@297:     modify it under the terms of the GNU General Public License as
Chris@297:     published by the Free Software Foundation; either version 2 of the
Chris@297:     License, or (at your option) any later version.  See the file
Chris@297:     COPYING included with this distribution for more information.
Chris@297: */
Chris@297: 
Chris@823: #ifndef _DECODING_WAV_FILE_READER_H_
Chris@823: #define _DECODING_WAV_FILE_READER_H_
Chris@297: 
Chris@297: #include "CodedAudioFileReader.h"
Chris@297: 
Chris@297: #include "base/Thread.h"
Chris@297: 
Chris@297: #include <set>
Chris@297: 
Chris@297: class WavFileReader;
Chris@392: class ProgressReporter;
Chris@297: 
Chris@823: class DecodingWavFileReader : public CodedAudioFileReader
Chris@297: {
Chris@392:     Q_OBJECT
Chris@297: public:
Chris@823:     DecodingWavFileReader(FileSource source,
Chris@1097:                           DecodeMode decodeMode, // determines when to resample
Chris@920:                           CacheMode cacheMode,
Chris@1040:                           sv_samplerate_t targetRate = 0,
Chris@920:                           bool normalised = false,
Chris@920:                           ProgressReporter *reporter = 0);
Chris@823:     virtual ~DecodingWavFileReader();
Chris@297: 
Chris@297:     virtual QString getError() const { return m_error; }
Chris@345:     virtual QString getLocation() const { return m_source.getLocation(); }
Chris@297:     static void getSupportedExtensions(std::set<QString> &extensions);
Chris@316:     static bool supportsExtension(QString ext);
Chris@316:     static bool supportsContentType(QString type);
Chris@317:     static bool supports(FileSource &source);
Chris@297: 
Chris@297:     virtual int getDecodeCompletion() const { return m_completion; }
Chris@297: 
Chris@297:     virtual bool isUpdating() const {
Chris@297:         return m_decodeThread && m_decodeThread->isRunning();
Chris@297:     }
Chris@297: 
Chris@392: public slots:
Chris@392:     void cancelled();
Chris@392: 
Chris@297: protected:
Chris@317:     FileSource m_source;
Chris@297:     QString m_path;
Chris@297:     QString m_error;
Chris@297:     bool m_cancelled;
Chris@1038:     sv_frame_t m_processed;
Chris@297:     int m_completion;
Chris@297: 
Chris@297:     WavFileReader *m_original;
Chris@392:     ProgressReporter *m_reporter;
Chris@297: 
Chris@1326:     void addBlock(const floatvec_t &frames);
Chris@297:     
Chris@297:     class DecodeThread : public Thread
Chris@297:     {
Chris@297:     public:
Chris@823:         DecodeThread(DecodingWavFileReader *reader) : m_reader(reader) { }
Chris@297:         virtual void run();
Chris@297: 
Chris@297:     protected:
Chris@823:         DecodingWavFileReader *m_reader;
Chris@297:     };
Chris@297: 
Chris@297:     DecodeThread *m_decodeThread;
Chris@297: };
Chris@297: 
Chris@297: #endif
Chris@297: