90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
/*
|
|
Audio File Library
|
|
Copyright (C) 2000, Michael Pruett <michael@68k.org>
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with this library; if not, write to the
|
|
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/*
|
|
units.h
|
|
|
|
This file defines the internal Unit and CompressionUnit
|
|
structures for the Audio File Library.
|
|
*/
|
|
|
|
#ifndef UNIT_H
|
|
#define UNIT_H
|
|
|
|
#include "audiofile.h"
|
|
#include "afinternal.h"
|
|
|
|
struct AudioFormat;
|
|
class FileModule;
|
|
|
|
struct Unit
|
|
{
|
|
int fileFormat; /* AF_FILEFMT_... */
|
|
const char *name; /* a 2-3 word name of the file format */
|
|
const char *description; /* a more descriptive name for the format */
|
|
const char *label; /* a 4-character label for the format */
|
|
bool implemented; /* if implemented */
|
|
|
|
AFfilesetup (*completesetup) (AFfilesetup setup);
|
|
bool (*recognize) (File *fh);
|
|
|
|
int defaultSampleFormat;
|
|
int defaultSampleWidth;
|
|
|
|
int compressionTypeCount;
|
|
const int *compressionTypes;
|
|
|
|
int markerCount;
|
|
|
|
int instrumentCount;
|
|
int loopPerInstrumentCount;
|
|
|
|
int instrumentParameterCount;
|
|
const InstParamInfo *instrumentParameters;
|
|
};
|
|
|
|
struct CompressionUnit
|
|
{
|
|
int compressionID; /* AF_COMPRESSION_... */
|
|
bool implemented;
|
|
const char *label; /* 4-character (approximately) label */
|
|
const char *shortname; /* short name in English */
|
|
const char *name; /* long name in English */
|
|
double squishFactor; /* compression ratio */
|
|
int nativeSampleFormat; /* AF_SAMPFMT_... */
|
|
int nativeSampleWidth; /* sample width in bits */
|
|
bool needsRebuffer; /* if there are chunk boundary requirements */
|
|
bool multiple_of; /* can accept any multiple of chunksize */
|
|
bool (*fmtok) (AudioFormat *format);
|
|
|
|
FileModule *(*initcompress) (Track *track, File *fh,
|
|
bool seekok, bool headerless, AFframecount *chunkframes);
|
|
FileModule *(*initdecompress) (Track *track, File *fh,
|
|
bool seekok, bool headerless, AFframecount *chunkframes);
|
|
};
|
|
|
|
#define _AF_NUM_UNITS 17
|
|
#define _AF_NUM_COMPRESSION 7
|
|
|
|
extern const Unit _af_units[_AF_NUM_UNITS];
|
|
extern const CompressionUnit _af_compression[_AF_NUM_COMPRESSION];
|
|
|
|
#endif /* UNIT_H */
|