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/* Sound.h - an object that holds the sound structure
* Copyright (C) 2006-2007, Pino Toscano <>
* 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, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
#ifndef Sound_H
#define Sound_H
class GooString;
class Object;
class Stream;
enum SoundKind {
soundEmbedded, // embedded sound
soundExternal // external sound
enum SoundEncoding {
soundRaw, // raw encoding
soundSigned, // twos-complement values
soundMuLaw, // mu-law-encoded samples
soundALaw // A-law-encoded samples
class Sound
// Try to parse the Object s
static Sound *parseSound(Object *s);
// Destructor
Object *getObject() { return streamObj; }
Stream *getStream();
SoundKind getSoundKind() { return kind; }
GooString *getFileName() { return fileName; }
double getSamplingRate() { return samplingRate; }
int getChannels() { return channels; }
int getBitsPerSample() { return bitsPerSample; }
SoundEncoding getEncoding() { return encoding; }
Sound *copy();
// Create a sound. The Object obj is ensured to be a Stream with a Dict
Sound(Object *obj, bool readAttrs = true);
Object *streamObj;
SoundKind kind;
GooString *fileName;
double samplingRate;
int channels;
int bitsPerSample;
SoundEncoding encoding;