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/*
* readanysf~ external for pd.
*
* Copyright (C) 2003 August Black
*
* 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
*
* ReadMad.cpp || much code studied from Andy Lo-A-Foe <www.alsaplayer.org>
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef READ_MAD
#ifndef _READMAD_H_
#define _READMAD_H_
#include <stdio.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#define MAD_BUFSIZE (4 * 1024)
#define XING_MAGIC (('X' << 24) | ('i' << 16) | ('n' << 8) | 'g')
extern "C" {
#include <mad.h>
}
//#include "xing.h"
#include "Readsf.h"
#include "Input.h"
#define FRAME_RESERVE 2000
struct xing {
long flags; /* valid fields (see below) */
unsigned long frames; /* total number of frames */
unsigned long bytes; /* total number of bytes */
unsigned char toc[100]; /* 100-point seek table */
long scale; /* ?? */
};
enum {
XING_FRAMES = 0x00000001L,
XING_BYTES = 0x00000002L,
XING_TOC = 0x00000004L,
XING_SCALE = 0x00000008L
};
# define xing_finish(xing) /* nothing */
class ReadMad : public Readsf {
private:
//FILE *mad_fd;
uint8_t mad_map[MAD_BUFSIZE];
long map_offset;
int bytes_avail;
struct mad_synth synth;
struct mad_stream stream;
struct mad_frame frame;
mad_timer_t timer;
struct xing xing;
int mad_init;
ssize_t offset;
ssize_t filesize;
// int samplerate;
int bitrate;
int samplesperframe;
long samplestotal;
long time;
int seekable;
int nr_frames;
//float my_scale(mad_fixed_t sample);
bool fill_buffer( );
bool fill_buffer( long newoffset );
int mad_frame_seek( int frame );
ssize_t find_initial_frame(uint8_t *buf, int size);
void seek_bytes(long byte_offset);
void xing_init(struct xing *);
int xing_parse(struct xing *, struct mad_bitptr, unsigned int);
public:
ReadMad();
ReadMad( Input *input );
virtual ~ReadMad();
virtual bool Initialize();
virtual int Decode(float *buffer, int size);
virtual bool Rewind();
virtual bool PCM_seek(long bytes);
virtual bool TIME_seek(double seconds);
};
#endif
#endif //ifdef READ_MAD
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