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/**
* GJay, copyright (c) 2002 Chuck Groom
*
* 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 1, 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
*
* Song analysis is done in a daemon process
*/
#ifndef __ANALYSIS_H__
#define __ANALYSIS_H__
#include <stdint.h>
#include "gjay.h"
/* Shamelessly excerpted from the Linux kernel */
#if __BYTE_ORDER == __BIG_ENDIAN
#define le32_to_cpu(x) __swab32((x))
#define le16_to_cpu(x) __swab16((x))
#elif __BYTE_ORDER == __LITTLE_ENDIAN
#define le32_to_cpu(x) ((uint32_t)(x))
#define le16_to_cpu(x) ((uint16_t)(x))
#endif
#define __swab16(x) \
({ \
uint16_t __x = (x); \
((uint16_t)( \
(((uint16_t)(__x) & (uint16_t)0x00ffU) << 8) | \
(((uint16_t)(__x) & (uint16_t)0xff00U) >> 8) )); \
})
#define __swab32(x) \
({ \
uint32_t __x = (x); \
((uint32_t)( \
(((uint32_t)(__x) & (uint32_t)0x000000ffUL) << 24) | \
(((uint32_t)(__x) & (uint32_t)0x0000ff00UL) << 8) | \
(((uint32_t)(__x) & (uint32_t)0x00ff0000UL) >> 8) | \
(((uint32_t)(__x) & (uint32_t)0xff000000UL) >> 24) )); \
})
/* WAV file header */
typedef struct {
char main_chunk[4]; /* 'RIFF' */
unsigned long length; /* length of file */
char chunk_type[4]; /* 'WAVE' */
char sub_chunk[4]; /* 'fmt' */
unsigned long length_chunk; /* length sub_chunk, always 16 bytes */
unsigned short format; /* always 1 = PCM-Code */
unsigned short modus; /* 1 = Mono, 2 = Stereo */
unsigned long sample_fq; /* Sample Freq */
unsigned long byte_p_sec; /* Data per sec */
unsigned short byte_p_spl; /* Bytes per sample */
unsigned short bit_p_spl; /* bits per sample, 8, 12, 16 */
char data_chunk[4]; /* 'data' */
unsigned long data_length; /* length of data */
} waveheaderstruct;
/* Mutex lock for analysis data */
extern song * analyze_song;
extern int analyze_percent;
/* Analysis.c */
void analysis_daemon(void);
//gboolean analyze(song * s);
int quote_path(char *buf, size_t bufsiz, const char *path);
/* Endian stuff */
void wav_header_swab(waveheaderstruct * header);
unsigned long swab_ul(unsigned long l);
unsigned short swab_us(unsigned short s);
#endif /* __ANALYSIS_H__ */
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