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/*
Audio File Library
Copyright (C) 2010, Michael Pruett <michael@68k.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307 USA.
*/
#ifndef AUDIOFORMAT_H
#define AUDIOFORMAT_H
#include <sys/types.h>
#include <string>
#include "aupvlist.h"
struct PCMInfo
{
double slope, intercept, minClip, maxClip;
};
struct AudioFormat
{
double sampleRate; /* sampling rate in Hz */
int sampleFormat; /* AF_SAMPFMT_... */
int sampleWidth; /* sample width in bits */
int byteOrder; /* AF_BYTEORDER_... */
PCMInfo pcm; /* parameters of PCM data */
int channelCount; /* number of channels */
int compressionType; /* AF_COMPRESSION_... */
AUpvlist compressionParams; /* NULL if no compression */
bool packed : 1;
size_t bytesPerSample(bool stretch3to4) const;
size_t bytesPerFrame(bool stretch3to4) const;
size_t bytesPerSample() const;
size_t bytesPerFrame() const;
bool isInteger() const;
bool isSigned() const;
bool isUnsigned() const;
bool isFloat() const;
bool isCompressed() const;
bool isUncompressed() const;
bool isPacked() const { return packed; }
std::string description() const;
};
#endif
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