writer.h

   1 /*
   2         Skype Call Recorder
   3         Copyright (C) 2008 jlh (jlh at gmx dot ch)
   4
   5         This program is free software; you can redistribute it and/or modify it
   6         under the terms of the GNU General Public License as published by the
   7         Free Software Foundation; either version 2 of the License, version 3 of
   8         the License, or (at your option) any later version.
   9
  10         This program is distributed in the hope that it will be useful, but
  11         WITHOUT ANY WARRANTY; without even the implied warranty of
  12         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13         General Public License for more details.
  14
  15         You should have received a copy of the GNU General Public License along
  16         with this program; if not, write to the Free Software Foundation, Inc.,
  17         51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18
  19         The GNU General Public License version 2 is included with the source of
  20         this program under the file name COPYING.  You can also get a copy on
  21         http://www.fsf.org/
  22 */
  23
  24 #ifndef WRITER_H
  25 #define WRITER_H
  26
  27 #include <QFile>
  28 #include <QDateTime>
  29 #include <ctime>
  30
  31 class QString;
  32 class QByteArray;
  33
  34 class AudioFileWriter {
  35 public:
  36         AudioFileWriter() : sampleRate(0), stereo(false), samplesWritten(0), mustWriteTags(true) { };
  37         virtual ~AudioFileWriter() { };
  38
  39         // tags should be set before open() if possible, but can also be set
  40         // and re-set later, but not after close().  tags will be written to
  41         // disk at arbitrary times, but close() guarantees they are written.
  42         // however, if a writer doesn't support tags at all, they are silently
  43         // ignored.
  44         virtual void setTags(const QString &, const QDateTime &);
  45
  46         // Note: you're not supposed to reopen after a close
  47         virtual bool open(const QString &, long, bool);
  48         virtual void close();
  49         virtual bool write(QByteArray &, QByteArray &, int, bool = false) = 0;
  50         QString fileName() const { return file.fileName(); }
  51
  52 protected:
  53         QFile file;
  54         long sampleRate;
  55         bool stereo;
  56         qint64 samplesWritten;
  57         QString tagComment;
  58         QDateTime tagTime;
  59         bool mustWriteTags;
  60
  61 private:
  62         // disabled
  63         AudioFileWriter(const AudioFileWriter &);
  64         AudioFileWriter &operator=(const AudioFileWriter &);
  65 };
  66
  67 #endif
  68