annotate data/fileio/QuickTimeFileReader.h @ 316:3a6725f285d6

* Make RemoteFile far more pervasive, and use it for local files as well
  so that we can handle both transparently.  Make it shallow copy with
  reference counting, so it can be used by value without having to worry
  about the cache file lifetime.  Use RemoteFile for MainWindow file-open
  functions, etc

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006-2007 Chris Cannam and QMUL.

    Based in part on QTAudioFile.h from SoundBite, copyright 2006
    Chris Sutton and Mark Levy.
    
    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 included with this distribution for more information.
*/

#ifndef _QUICKTIME_FILE_READER_H_
#define _QUICKTIME_FILE_READER_H_

#ifdef HAVE_QUICKTIME

#include "CodedAudioFileReader.h"

#include "base/Thread.h"

#include <set>

class QProgressDialog;

class QuickTimeFileReader : public CodedAudioFileReader
{
public:
    enum DecodeMode {
        DecodeAtOnce, // decode the file on construction, with progress dialog
        DecodeThreaded // decode in a background thread after construction
    };

    QuickTimeFileReader(RemoteFile source,
                        DecodeMode decodeMode,
                        CacheMode cacheMode,
                        size_t targetRate = 0);
    virtual ~QuickTimeFileReader();

    virtual QString getError() const { return m_error; }
    virtual QString getTitle() const { return m_title; }
    
    static void getSupportedExtensions(std::set<QString> &extensions);
    static bool supportsExtension(QString ext);
    static bool supportsContentType(QString type);
    static bool supports(RemoteFile &source);

    virtual int getDecodeCompletion() const { return m_completion; }

    virtual bool isUpdating() const {
        return m_decodeThread && m_decodeThread->isRunning();
    }

protected:
    RemoteFile m_source;
    QString m_path;
    QString m_error;
    QString m_title;

    class D;
    D *m_d;

    QProgressDialog *m_progress;
    bool m_cancelled;
    int m_completion;

    class DecodeThread : public Thread
    {
    public:
        DecodeThread(QuickTimeFileReader *reader) : m_reader(reader) { }
        virtual void run();

    protected:
        QuickTimeFileReader *m_reader; 
    };

    DecodeThread *m_decodeThread;
};

#endif

#endif