1/* 2** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> 3** 4** This program is free software; you can redistribute it and/or modify 5** it under the terms of the GNU Lesser General Public License as published by 6** the Free Software Foundation; either version 2.1 of the License, or 7** (at your option) any later version. 8** 9** This program is distributed in the hope that it will be useful, 10** but WITHOUT ANY WARRANTY; without even the implied warranty of 11** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12** GNU Lesser General Public License for more details. 13** 14** You should have received a copy of the GNU Lesser General Public License 15** along with this program; if not, write to the Free Software 16** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 17*/ 18 19#include "sfconfig.h" 20 21#include <stdio.h> 22#include <fcntl.h> 23#include <string.h> 24#include <ctype.h> 25 26#include "sndfile.h" 27#include "sfendian.h" 28#include "common.h" 29 30#if (ENABLE_EXPERIMENTAL_CODE == 0) 31 32int 33new_open (SF_PRIVATE *psf) 34{ if (psf) 35 return SFE_UNIMPLEMENTED ; 36 return (psf && 0) ; 37} /* new_open */ 38 39#else 40 41/*------------------------------------------------------------------------------ 42** Macros to handle big/little endian issues. 43*/ 44 45/*------------------------------------------------------------------------------ 46** Typedefs. 47*/ 48 49/*------------------------------------------------------------------------------ 50** Private static functions. 51*/ 52 53static int new_read_header (SF_PRIVATE *psf) ; 54 55/*------------------------------------------------------------------------------ 56** Public function. 57*/ 58 59int 60new_open (SF_PRIVATE *psf) 61{ int subformat, error = 0 ; 62 63 if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) 64 return SFE_UNIMPLEMENTED ; 65 66 if ((error = new_read_header (psf))) 67 return error ; 68 69 if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_WVE) 70 return SFE_BAD_OPEN_FORMAT ; 71 72 subformat = SF_CODEC (psf->sf.format) ; 73 74 return error ; 75} /* new_open */ 76 77/*------------------------------------------------------------------------------ 78*/ 79 80static int 81new_read_header (SF_PRIVATE *psf) 82{ int marker ; 83 84 /* Set position to start of file to begin reading header. */ 85 psf_binheader_readf (psf, "pm", 0, &marker) ; 86 if (marker != ALAW_MARKER) 87 return SFE_WVE_NOT_WVE ; 88 89 psf_binheader_readf (psf, "m", &marker) ; 90 if (marker != SOUN_MARKER) 91 return SFE_WVE_NOT_WVE ; 92 93 psf_binheader_readf (psf, "m", &marker) ; 94 if (marker != DFIL_MARKER) 95 return SFE_WVE_NOT_WVE ; 96 97 psf_log_printf (psf, "Read only : Psion Alaw\n" 98 " Sample Rate : 8000\n" 99 " Channels : 1\n" 100 " Encoding : A-law\n") ; 101 102 psf->dataoffset = 0x20 ; 103 psf->datalength = psf->filelength - psf->dataoffset ; 104 105 psf->sf.format = SF_FORMAT_WVE | SF_FORMAT_ALAW ; 106 psf->sf.samplerate = 8000 ; 107 psf->sf.frames = psf->datalength ; 108 psf->sf.channels = 1 ; 109 110 return alaw_init (psf) ; 111} /* new_read_header */ 112 113/*------------------------------------------------------------------------------ 114*/ 115 116#endif 117