rosapps/smartpdf/poppler/poppler/Sound.h

   1 /* Sound.h - an object that holds the sound structure
   2  * Copyright (C) 2006-2007, Pino Toscano <pino@kde.org>
   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, or (at your option)
   7  * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17  */
  18
  19 #ifndef Sound_H
  20 #define Sound_H
  21
  22 class GooString;
  23 class Object;
  24 class Stream;
  25
  26 //------------------------------------------------------------------------
  27
  28 enum SoundKind {
  29   soundEmbedded,                // embedded sound
  30   soundExternal                 // external sound
  31 };
  32
  33 enum SoundEncoding {
  34   soundRaw,                     // raw encoding
  35   soundSigned,                  // twos-complement values
  36   soundMuLaw,                   // mu-law-encoded samples
  37   soundALaw                     // A-law-encoded samples
  38 };
  39
  40 class Sound
  41 {
  42 public:
  43   // Try to parse the Object s
  44   static Sound *parseSound(Object *s);
  45
  46   // Destructor
  47   ~Sound();
  48
  49   Object *getObject() { return streamObj; }
  50   Stream *getStream();
  51
  52   SoundKind getSoundKind() { return kind; }
  53   GooString *getFileName() { return fileName; }
  54   double getSamplingRate() { return samplingRate; }
  55   int getChannels() { return channels; }
  56   int getBitsPerSample() { return bitsPerSample; }
  57   SoundEncoding getEncoding() { return encoding; }
  58
  59   Sound *copy();
  60
  61 private:
  62   // Create a sound. The Object obj is ensured to be a Stream with a Dict
  63   Sound(Object *obj, bool readAttrs = true);
  64
  65   Object *streamObj;
  66   SoundKind kind;
  67   GooString *fileName;
  68   double samplingRate;
  69   int channels;
  70   int bitsPerSample;
  71   SoundEncoding encoding;
  72 };
  73
  74 #endif