+++ /dev/null
-/*
-** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com>
-** Copyright (C) 2007 Reuben Thomas
-**
-** 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 "sfconfig.h"
-
-#include <stdio.h>
-#include <fcntl.h>
-#include <string.h>
-#include <ctype.h>
-
-#include "sndfile.h"
-#include "sfendian.h"
-#include "common.h"
-
-/*------------------------------------------------------------------------------
-** Macros to handle big/little endian issues, and other magic numbers.
-*/
-
-#define ALAW_MARKER MAKE_MARKER ('A', 'L', 'a', 'w')
-#define SOUN_MARKER MAKE_MARKER ('S', 'o', 'u', 'n')
-#define DFIL_MARKER MAKE_MARKER ('d', 'F', 'i', 'l')
-#define ESSN_MARKER MAKE_MARKER ('e', '*', '*', '\0')
-#define PSION_VERSION ((unsigned short) 3856)
-#define PSION_DATAOFFSET 0x20
-
-/*------------------------------------------------------------------------------
-** Private static functions.
-*/
-
-static int wve_read_header (SF_PRIVATE *psf) ;
-static int wve_write_header (SF_PRIVATE *psf, int calc_length) ;
-static int wve_close (SF_PRIVATE *psf) ;
-
-/*------------------------------------------------------------------------------
-** Public function.
-*/
-
-int
-wve_open (SF_PRIVATE *psf)
-{ int error = 0 ;
-
- if (psf->is_pipe)
- return SFE_WVE_NO_PIPE ;
-
- if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0))
- { if ((error = wve_read_header (psf)))
- return error ;
- } ;
-
- if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
- { if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_WVE)
- return SFE_BAD_OPEN_FORMAT ;
-
- psf->endian = SF_ENDIAN_BIG ;
-
- if ((error = wve_write_header (psf, SF_FALSE)))
- return error ;
-
- psf->write_header = wve_write_header ;
- } ;
-
- psf->blockwidth = psf->bytewidth * psf->sf.channels ;
-
- psf->container_close = wve_close ;
-
- error = alaw_init (psf) ;
-
- return error ;
-} /* wve_open */
-
-/*------------------------------------------------------------------------------
-*/
-
-static int
-wve_read_header (SF_PRIVATE *psf)
-{ int marker ;
- unsigned short version, padding, repeats, trash ;
- unsigned datalength ;
-
- /* Set position to start of file to begin reading header. */
- psf_binheader_readf (psf, "pm", 0, &marker) ;
- if (marker != ALAW_MARKER)
- { psf_log_printf (psf, "Could not find '%M'\n", ALAW_MARKER) ;
- return SFE_WVE_NOT_WVE ;
- } ;
-
- psf_binheader_readf (psf, "m", &marker) ;
- if (marker != SOUN_MARKER)
- { psf_log_printf (psf, "Could not find '%M'\n", SOUN_MARKER) ;
- return SFE_WVE_NOT_WVE ;
- } ;
-
- psf_binheader_readf (psf, "m", &marker) ;
- if (marker != DFIL_MARKER)
- { psf_log_printf (psf, "Could not find '%M'\n", DFIL_MARKER) ;
- return SFE_WVE_NOT_WVE ;
- } ;
-
- psf_binheader_readf (psf, "m", &marker) ;
- if (marker != ESSN_MARKER)
- { psf_log_printf (psf, "Could not find '%M'\n", ESSN_MARKER) ;
- return SFE_WVE_NOT_WVE ;
- } ;
-
- psf_binheader_readf (psf, "E2", &version) ;
-
- psf_log_printf (psf, "Psion Palmtop Alaw (.wve)\n"
- " Sample Rate : 8000\n"
- " Channels : 1\n"
- " Encoding : A-law\n") ;
-
- if (version != PSION_VERSION)
- psf_log_printf (psf, "Psion version %d should be %d\n", version, PSION_VERSION) ;
-
- psf_binheader_readf (psf, "E4", &datalength) ;
- psf->dataoffset = PSION_DATAOFFSET ;
- if (datalength != psf->filelength - psf->dataoffset)
- { psf->datalength = psf->filelength - psf->dataoffset ;
- psf_log_printf (psf, "Data length %d should be %D\n", datalength, psf->datalength) ;
- }
- else
- psf->datalength = datalength ;
-
- psf_binheader_readf (psf, "E22222", &padding, &repeats, &trash, &trash, &trash) ;
-
- psf->sf.format = SF_FORMAT_WVE | SF_FORMAT_ALAW ;
- psf->sf.samplerate = 8000 ;
- psf->sf.frames = psf->datalength ;
- psf->sf.channels = 1 ;
-
- return SFE_NO_ERROR ;
-} /* wve_read_header */
-
-/*------------------------------------------------------------------------------
-*/
-
-static int
-wve_write_header (SF_PRIVATE *psf, int calc_length)
-{ sf_count_t current ;
- unsigned datalen ;
-
- current = psf_ftell (psf) ;
-
- if (calc_length)
- { psf->filelength = psf_get_filelen (psf) ;
-
- psf->datalength = psf->filelength - psf->dataoffset ;
- if (psf->dataend)
- psf->datalength -= psf->filelength - psf->dataend ;
-
- psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ;
- } ;
-
- /* Reset the current header length to zero. */
- psf->header [0] = 0 ;
- psf->headindex = 0 ;
- psf_fseek (psf, 0, SEEK_SET) ;
-
- /* Write header. */
- datalen = psf->datalength ;
- psf_binheader_writef (psf, "Emmmm", ALAW_MARKER, SOUN_MARKER, DFIL_MARKER, ESSN_MARKER) ;
- psf_binheader_writef (psf, "E2422222", PSION_VERSION, datalen, 0, 0, 0, 0, 0) ;
- psf_fwrite (psf->header, psf->headindex, 1, psf) ;
-
- if (psf->sf.channels != 1)
- return SFE_CHANNEL_COUNT ;
-
- if (psf->error)
- return psf->error ;
-
- psf->dataoffset = psf->headindex ;
-
- if (current > 0)
- psf_fseek (psf, current, SEEK_SET) ;
-
- return psf->error ;
-} /* wve_write_header */
-
-/*------------------------------------------------------------------------------
-*/
-
-static int
-wve_close (SF_PRIVATE *psf)
-{
- if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
- { /* Now we know for certain the length of the file we can re-write
- ** the header.
- */
- wve_write_header (psf, SF_TRUE) ;
- } ;
-
- return 0 ;
-} /* wve_close */
projects / Faustine.git / blobdiff