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/***************************************************************************
soundformat.h - description
-------------------
begin : Sun Aug 1 2004
copyright : (C) 2004 by Martin Witte
email : witte@kawo1.rwth-aachen.de
***************************************************************************/
/***************************************************************************
* *
* 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 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef KRADIO_SOUNDFORMAT_H
#define KRADIO_SOUNDFORMAT_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <endian.h>
#include <qstring.h>
#include <kconfig.h>
struct SoundFormat {
unsigned m_SampleRate;
unsigned m_Channels;
unsigned m_SampleBits;
bool m_IsSigned;
unsigned m_Endianess;
QString m_Encoding; // "raw", "mp3", ... (no "wav", because it's only header + raw data)
SoundFormat(unsigned sample_rate, unsigned channels, unsigned sample_bits, bool is_signed, unsigned endianess, const QString &enc)
: m_SampleRate(sample_rate), m_Channels(channels), m_SampleBits(sample_bits), m_IsSigned(is_signed), m_Endianess(endianess), m_Encoding(enc) {}
SoundFormat(unsigned sample_rate, unsigned channels, unsigned sample_bits, bool is_signed, unsigned endianess)
: m_SampleRate(sample_rate), m_Channels(channels), m_SampleBits(sample_bits), m_IsSigned(is_signed), m_Endianess(endianess), m_Encoding("raw") {}
SoundFormat(unsigned sample_rate, unsigned channels, unsigned sample_bits, bool is_signed)
: m_SampleRate(sample_rate), m_Channels(channels), m_SampleBits(sample_bits), m_IsSigned(is_signed), m_Endianess(BYTE_ORDER), m_Encoding("raw") {}
SoundFormat(bool stereo)
: m_SampleRate(44100), m_Channels(stereo ? 2 : 1), m_SampleBits(16), m_IsSigned(true), m_Endianess(BYTE_ORDER), m_Encoding("raw") {}
SoundFormat()
: m_SampleRate(44100), m_Channels(2), m_SampleBits(16), m_IsSigned(true), m_Endianess(BYTE_ORDER), m_Encoding("raw") {}
bool operator == (const SoundFormat &o) const { return m_SampleRate == o.m_SampleRate &&
m_Channels == o.m_Channels &&
m_SampleBits == o.m_SampleBits &&
m_IsSigned == o.m_IsSigned &&
m_Endianess == o.m_Endianess &&
m_Encoding == o.m_Encoding
;
}
bool operator != (const SoundFormat &o) const { return !operator == (o); }
int sampleSize() const; // size of a single sample
int frameSize() const; // sampleSize * channels
int minValue() const;
int maxValue() const;
void restoreConfig(const QString &prefix, KConfig *c);
void saveConfig(const QString &prefix, KConfig *c) const;
int convertSampleToInt(const char *sample, bool do_scale) const;
void convertIntToSample(int src, char *dst, bool is_scaled) const;
void convertSamplesToInts(const char *src, int *dst, size_t n, bool do_scale) const;
void convertIntsToSamples(const int *src, char *dst, size_t n, bool is_scaled) const;
void convertSamplesToFloat (const char *src, float **dst, size_t n) const;
void convertFloatsToSamples(const float **src, char *dst, size_t n) const;
};
#endif
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