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/*
Copyright (C) 2005 The Pentagram Team
Copyright (C) 2010-2022 The Exult Team
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.
This program 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 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef AUDIOSAMPLE_H_INCLUDED
#define AUDIOSAMPLE_H_INCLUDED
#include "common_types.h"
#include "ignore_unused_variable_warning.h"
#include <memory>
class IDataSource;
namespace Pentagram {
class AudioSample {
protected:
uint32 bits;
int frame_size;
uint32 decompressor_size;
uint32 decompressor_align;
uint32 buffer_limit;
std::unique_ptr<uint8[]> buffer;
uint32 refcount;
// these are mutable so the const method initDecompressor can change them as needed
mutable uint32 sample_rate;
mutable bool stereo;
mutable uint32 length;
public:
AudioSample(std::unique_ptr<uint8[]> buffer, uint32 size);
virtual ~AudioSample() = default;
inline uint32 getRate() const {
return sample_rate;
}
inline uint32 getBits() const {
return bits;
}
inline bool isStereo() const {
return stereo;
}
inline uint32 getFrameSize() const {
return frame_size;
}
inline uint32 getDecompressorDataSize() const {
return decompressor_size;
}
inline uint32 getDecompressorAlignment() const {
return decompressor_align;
}
//! get AudioSample length (in samples)
inline uint32 getPlaybackLength() const {
return length;
}
virtual void initDecompressor(void* DecompData) const = 0;
virtual uint32 decompressFrame(void* DecompData, void* samples) const
= 0;
virtual void rewind(void* DecompData) const {
freeDecompressor(DecompData);
initDecompressor(DecompData);
}
virtual void freeDecompressor(void* DecompData) const {
ignore_unused_variable_warning(DecompData);
}
void IncRef() {
refcount++;
}
void Release() {
if (!--refcount) {
delete this;
}
}
uint32 getRefCount() {
return refcount;
}
virtual bool isVocSample() const {
return false;
}
static AudioSample* createAudioSample(
std::unique_ptr<uint8[]> data, uint32 size);
};
} // namespace Pentagram
#endif // AUDIOSAMPLE_H_INCLUDED
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