libs/pbd/pbd/sndfile_manager.h

   1 /*
   2     Copyright (C) 2010 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #ifndef __pbd_sndfile_manager_h__
  21 #define __pbd_sndfile_manager_h__
  22
  23 #include <sys/types.h>
  24 #include <string>
  25 #include <map>
  26 #include <sndfile.h>
  27 #include <glibmm/thread.h>
  28 #include "pbd/signals.h"
  29 #include "pbd/file_manager.h"
  30
  31 namespace PBD {
  32
  33 /** FileDescriptor for a file to be opened using libsndfile */
  34 class SndFileDescriptor : public FileDescriptor
  35 {
  36 public:
  37         SndFileDescriptor (std::string const & file_name, bool writeable, SF_INFO* info);
  38         ~SndFileDescriptor ();
  39
  40         SNDFILE* allocate ();
  41
  42 private:
  43
  44         friend class FileManager;
  45
  46         bool open ();
  47         void close ();
  48         bool is_open () const;
  49
  50         SNDFILE* _sndfile; ///< SNDFILE* pointer, or 0 if the file is closed
  51         SF_INFO* _info; ///< libsndfile's info for this file
  52 };
  53
  54 }
  55
  56 #endif /* __pbd_sndfile_manager_h__ */