Mercurial > hg > svcore
view data/fileio/QuickTimeFileReader.h @ 335:02d2ad95ea52 spectrogram-cache-rejig
* Get storage advice for each cache in an FFT data server. Allows us to be
more confident about the actual memory situation and cut over from memory
to disc part way through an FFT calculation if necessary. StorageAdviser
is now a bit too optimistic though (it's too keen to allocate large numbers
of small blocks in memory).
author | Chris Cannam |
---|---|
date | Tue, 13 Nov 2007 13:54:10 +0000 |
parents | c324d410b096 |
children | 700cd3350391 |
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/* -*- 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(FileSource 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(FileSource &source); virtual int getDecodeCompletion() const { return m_completion; } virtual bool isUpdating() const { return m_decodeThread && m_decodeThread->isRunning(); } protected: FileSource 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