320 lines
8.7 KiB
C
320 lines
8.7 KiB
C
/*
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** Copyright (C) 2001-2009 Erik de Castro Lopo <erikd@mega-nerd.com>
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU Lesser General Public License as published by
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** the Free Software Foundation; either version 2.1 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU Lesser General Public License for more details.
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**
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** You should have received a copy of the GNU Lesser General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "sfconfig.h"
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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#include <stdarg.h>
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#include "sndfile.h"
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#include "sfendian.h"
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#include "common.h"
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#if (ENABLE_EXPERIMENTAL_CODE == 0)
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int
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rx2_open (SF_PRIVATE *psf)
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{ if (psf)
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return SFE_UNIMPLEMENTED ;
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return 0 ;
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} /* rx2_open */
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#else
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/*------------------------------------------------------------------------------
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* Macros to handle big/little endian issues.
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*/
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#define CAT_MARKER (MAKE_MARKER ('C', 'A', 'T', ' '))
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#define GLOB_MARKER (MAKE_MARKER ('G', 'L', 'O', 'B'))
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#define RECY_MARKER (MAKE_MARKER ('R', 'E', 'C', 'Y'))
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#define SLCL_MARKER (MAKE_MARKER ('S', 'L', 'C', 'L'))
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#define SLCE_MARKER (MAKE_MARKER ('S', 'L', 'C', 'E'))
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#define DEVL_MARKER (MAKE_MARKER ('D', 'E', 'V', 'L'))
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#define TRSH_MARKER (MAKE_MARKER ('T', 'R', 'S', 'H'))
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#define EQ_MARKER (MAKE_MARKER ('E', 'Q', ' ', ' '))
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#define COMP_MARKER (MAKE_MARKER ('C', 'O', 'M', 'P'))
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#define SINF_MARKER (MAKE_MARKER ('S', 'I', 'N', 'F'))
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#define SDAT_MARKER (MAKE_MARKER ('S', 'D', 'A', 'T'))
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/*------------------------------------------------------------------------------
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* Typedefs for file chunks.
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*/
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/*------------------------------------------------------------------------------
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* Private static functions.
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*/
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static int rx2_close (SF_PRIVATE *psf) ;
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/*------------------------------------------------------------------------------
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** Public functions.
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*/
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int
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rx2_open (SF_PRIVATE *psf)
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{ static const char *marker_type [4] =
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{ "Original Enabled", "Enabled Hidden",
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"Additional/PencilTool", "Disabled"
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} ;
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int error, marker, length, glob_offset, slce_count, frames ;
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int sdat_length = 0, slce_total = 0 ;
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int n_channels ;
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/* So far only doing read. */
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psf_binheader_readf (psf, "Epm4", 0, &marker, &length) ;
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if (marker != CAT_MARKER)
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{ psf_log_printf (psf, "length : %d\n", length) ;
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return -1000 ;
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} ;
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if (length != psf->filelength - 8)
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psf_log_printf (psf, "%M : %d (should be %d)\n", marker, length, psf->filelength - 8) ;
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else
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psf_log_printf (psf, "%M : %d\n", marker, length) ;
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/* 'REX2' marker */
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psf_binheader_readf (psf, "m", &marker) ;
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psf_log_printf (psf, "%M", marker) ;
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/* 'HEAD' marker */
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psf_binheader_readf (psf, "m", &marker) ;
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psf_log_printf (psf, "%M\n", marker) ;
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/* Grab 'GLOB' offset. */
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psf_binheader_readf (psf, "E4", &glob_offset) ;
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glob_offset += 0x14 ; /* Add the current file offset. */
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/* Jump to offset 0x30 */
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psf_binheader_readf (psf, "p", 0x30) ;
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/* Get name length */
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length = 0 ;
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psf_binheader_readf (psf, "1", &length) ;
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if (length >= SIGNED_SIZEOF (psf->u.cbuf))
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{ psf_log_printf (psf, " Text : %d *** Error : Too sf_count_t!\n") ;
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return -1001 ;
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}
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memset (psf->u.cbuf, 0, sizeof (psf->u.cbuf)) ;
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psf_binheader_readf (psf, "b", psf->u.cbuf, length) ;
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psf_log_printf (psf, " Text : \"%s\"\n", psf->u.cbuf) ;
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/* Jump to GLOB offset position. */
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if (glob_offset & 1)
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glob_offset ++ ;
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psf_binheader_readf (psf, "p", glob_offset) ;
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slce_count = 0 ;
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/* GLOB */
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while (1)
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{ psf_binheader_readf (psf, "m", &marker) ;
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if (marker != SLCE_MARKER && slce_count > 0)
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{ psf_log_printf (psf, " SLCE count : %d\n", slce_count) ;
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slce_count = 0 ;
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}
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switch (marker)
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{ case GLOB_MARKER:
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psf_binheader_readf (psf, "E4", &length) ;
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psf_log_printf (psf, " %M : %d\n", marker, length) ;
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psf_binheader_readf (psf, "j", length) ;
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break ;
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case RECY_MARKER:
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psf_binheader_readf (psf, "E4", &length) ;
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psf_log_printf (psf, " %M : %d\n", marker, length) ;
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psf_binheader_readf (psf, "j", (length+1) & 0xFFFFFFFE) ; /* ?????? */
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break ;
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case CAT_MARKER:
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psf_binheader_readf (psf, "E4", &length) ;
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psf_log_printf (psf, " %M : %d\n", marker, length) ;
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/*-psf_binheader_readf (psf, "j", length) ;-*/
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break ;
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case DEVL_MARKER:
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psf_binheader_readf (psf, "mE4", &marker, &length) ;
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psf_log_printf (psf, " DEVL%M : %d\n", marker, length) ;
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if (length & 1)
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length ++ ;
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psf_binheader_readf (psf, "j", length) ;
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break ;
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case EQ_MARKER:
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case COMP_MARKER:
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psf_binheader_readf (psf, "E4", &length) ;
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psf_log_printf (psf, " %M : %d\n", marker, length) ;
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/* This is weird!!!! why make this (length - 1) */
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if (length & 1)
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length ++ ;
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psf_binheader_readf (psf, "j", length) ;
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break ;
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case SLCL_MARKER:
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psf_log_printf (psf, " %M\n (Offset, Next Offset, Type)\n", marker) ;
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slce_count = 0 ;
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break ;
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case SLCE_MARKER:
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{ int len [4], indx ;
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psf_binheader_readf (psf, "E4444", &len [0], &len [1], &len [2], &len [3]) ;
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indx = ((len [3] & 0x0000FFFF) >> 8) & 3 ;
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if (len [2] == 1)
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{ if (indx != 1)
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indx = 3 ; /* 2 cases, where next slice offset = 1 -> disabled & enabled/hidden */
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psf_log_printf (psf, " %M : (%6d, ?: 0x%X, %s)\n", marker, len [1], (len [3] & 0xFFFF0000) >> 16, marker_type [indx]) ;
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}
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else
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{ slce_total += len [2] ;
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psf_log_printf (psf, " %M : (%6d, SLCE_next_ofs:%d, ?: 0x%X, %s)\n", marker, len [1], len [2], (len [3] & 0xFFFF0000) >> 16, marker_type [indx]) ;
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} ;
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slce_count ++ ;
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} ;
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break ;
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case SINF_MARKER:
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psf_binheader_readf (psf, "E4", &length) ;
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psf_log_printf (psf, " %M : %d\n", marker, length) ;
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psf_binheader_readf (psf, "E2", &n_channels) ;
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n_channels = (n_channels & 0x0000FF00) >> 8 ;
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psf_log_printf (psf, " Channels : %d\n", n_channels) ;
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psf_binheader_readf (psf, "E44", &psf->sf.samplerate, &frames) ;
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psf->sf.frames = frames ;
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psf_log_printf (psf, " Sample Rate : %d\n", psf->sf.samplerate) ;
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psf_log_printf (psf, " Frames : %D\n", psf->sf.frames) ;
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psf_binheader_readf (psf, "E4", &length) ;
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psf_log_printf (psf, " ??????????? : %d\n", length) ;
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psf_binheader_readf (psf, "E4", &length) ;
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psf_log_printf (psf, " ??????????? : %d\n", length) ;
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break ;
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case SDAT_MARKER:
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psf_binheader_readf (psf, "E4", &length) ;
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sdat_length = length ;
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/* Get the current offset. */
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psf->dataoffset = psf_binheader_readf (psf, NULL) ;
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if (psf->dataoffset + length != psf->filelength)
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psf_log_printf (psf, " %M : %d (should be %d)\n", marker, length, psf->dataoffset + psf->filelength) ;
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else
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psf_log_printf (psf, " %M : %d\n", marker, length) ;
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break ;
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default :
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psf_log_printf (psf, "Unknown marker : 0x%X %M", marker, marker) ;
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return -1003 ;
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break ;
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} ;
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/* SDAT always last marker in file. */
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if (marker == SDAT_MARKER)
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break ;
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} ;
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puts (psf->logbuffer) ;
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puts ("-----------------------------------") ;
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printf ("SDAT length : %d\n", sdat_length) ;
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printf ("SLCE count : %d\n", slce_count) ;
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/* Hack for zero slice count. */
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if (slce_count == 0 && slce_total == 1)
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slce_total = frames ;
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printf ("SLCE samples : %d\n", slce_total) ;
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/* Two bytes per sample. */
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printf ("Comp Ratio : %f:1\n", (2.0 * slce_total * n_channels) / sdat_length) ;
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puts (" ") ;
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psf->logbuffer [0] = 0 ;
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/* OK, have the header although not too sure what it all means. */
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psf->endian = SF_ENDIAN_BIG ;
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psf->datalength = psf->filelength - psf->dataoffset ;
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if (psf_fseek (psf, psf->dataoffset, SEEK_SET))
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return SFE_BAD_SEEK ;
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psf->sf.format = (SF_FORMAT_REX2 | SF_FORMAT_DWVW_12) ;
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psf->sf.channels = 1 ;
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psf->bytewidth = 2 ;
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psf->blockwidth = psf->sf.channels * psf->bytewidth ;
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if ((error = dwvw_init (psf, 16)))
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return error ;
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psf->container_close = rx2_close ;
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if (! psf->sf.frames && psf->blockwidth)
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psf->sf.frames = psf->datalength / psf->blockwidth ;
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/* All done. */
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return 0 ;
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} /* rx2_open */
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/*------------------------------------------------------------------------------
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*/
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static int
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rx2_close (SF_PRIVATE *psf)
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{
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if (psf->mode == SFM_WRITE)
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{ /* Now we know for certain the length of the file we can re-write
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** correct values for the FORM, 8SVX and BODY chunks.
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*/
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} ;
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return 0 ;
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} /* rx2_close */
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#endif
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