ref: 3def44dfa46085e1d8ccaf9688a6817853bfcee9
dir: /common/libsndfile/src/samplitude.c/
/*
** Copyright (C) 2000-2001 Erik de Castro Lopo <[email protected]>
**
** This program 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 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 Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser 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.
*/
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <ctype.h>
#include <stdarg.h>
#include "sndfile.h"
#include "config.h"
#include "sfendian.h"
#include "common.h"
/*------------------------------------------------------------------------------
* Macros to handle big/little endian issues.
*/
#if (CPU_IS_LITTLE_ENDIAN == 1)
# define MAKE_MARKER(a,b,c,d) ((a)|((b)<<8)|((c)<<16)|((d)<<24))
#elif (CPU_IS_BIG_ENDIAN == 1)
# define MAKE_MARKER(a,b,c,d) (((a)<<24)|((b)<<16)|((c)<<8)|(d))
#else
# error "Cannot determine endian-ness of processor."
#endif
#define SEKD_MARKER (MAKE_MARKER ('S', 'E', 'K', 'D'))
#define SAMR_MARKER (MAKE_MARKER ('S', 'A', 'M', 'R'))
/*------------------------------------------------------------------------------
* Typedefs for file chunks.
*/
typedef struct
{ unsigned int sekd, samr ;
int unknown0 ;
int bitspersample ;
int unknown1, unknown2 ;
int poss_len ;
int samplerate ;
int channels ;
} RAP_CHUNK ;
/*------------------------------------------------------------------------------
* Private static functions.
*/
static int smpltd_close (SF_PRIVATE *psf) ;
/*------------------------------------------------------------------------------
** Public functions.
*/
int smpltd_open_read (SF_PRIVATE *psf)
{ RAP_CHUNK rap ;
psf_binheader_readf (psf, "mm", &(rap.sekd), &(rap.samr)) ;
if (rap.sekd != SEKD_MARKER)
return SFE_SMTD_NO_SEKD ;
if (rap.samr != SAMR_MARKER)
return SFE_SMTD_NO_SAMR ;
/*-
printf ("Here we are!\n") ;
printf ("unknown0 : %d\n", rap.unknown0) ;
printf ("bits per sample : %d\n", rap.bitspersample) ;
printf ("unknown1 : %d\n", rap.unknown1) ;
printf ("unknown2 : %d\n", rap.unknown2) ;
printf ("poss_len : %d\n", rap.poss_len) ;
printf ("sample rate : %d\n", rap.samplerate) ;
printf ("channels : %d\n", rap.channels) ;
-*/
psf->close = (func_close) smpltd_close ;
return 0 ;
} /* smpltd_open_read */
int
smpltd_open_write (SF_PRIVATE *psf)
{
return 0 ;
} /* smpltd_open_write */
/*------------------------------------------------------------------------------
*/
static int
smpltd_close (SF_PRIVATE *psf)
{
if (psf->mode == SF_MODE_WRITE)
{ /* Now we know for certain the length of the file we can re-write
** correct values for the FORM, 8SVX and BODY chunks.
*/
} ;
if (psf->fdata)
free (psf->fdata) ;
psf->fdata = NULL ;
return 0 ;
} /* smpltd_close */